diff options
Diffstat (limited to 'arch')
76 files changed, 1530 insertions, 2982 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index de606dfa8db9..302fc1401547 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -702,7 +702,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, /* * Mark this as IO */ - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); if (remap_pfn_range(vma, vma->vm_start, phys, diff --git a/arch/arm/mach-ixp4xx/nas100d-power.c b/arch/arm/mach-ixp4xx/nas100d-power.c index 99d333d7ebdd..a3745ed37f9f 100644 --- a/arch/arm/mach-ixp4xx/nas100d-power.c +++ b/arch/arm/mach-ixp4xx/nas100d-power.c @@ -20,11 +20,10 @@ #include <linux/module.h> #include <linux/reboot.h> #include <linux/interrupt.h> +#include <linux/reboot.h> #include <asm/mach-types.h> -extern void ctrl_alt_del(void); - static irqreturn_t nas100d_reset_handler(int irq, void *dev_id, struct pt_regs *regs) { /* Signal init to do the ctrlaltdel action, this will bypass init if diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c index d80c362bc539..6d38e97142cc 100644 --- a/arch/arm/mach-ixp4xx/nslu2-power.c +++ b/arch/arm/mach-ixp4xx/nslu2-power.c @@ -20,11 +20,10 @@ #include <linux/module.h> #include <linux/reboot.h> #include <linux/interrupt.h> +#include <linux/reboot.h> #include <asm/mach-types.h> -extern void ctrl_alt_del(void); - static irqreturn_t nslu2_power_handler(int irq, void *dev_id, struct pt_regs *regs) { /* Signal init to do the ctrlaltdel action, this will bypass init if diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c index 24bc149889b6..1e9d062103ae 100644 --- a/arch/cris/arch-v32/drivers/pci/bios.c +++ b/arch/cris/arch-v32/drivers/pci/bios.c @@ -27,8 +27,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, /* Leave vm_pgoff as-is, the PCI space address is the physical * address on this platform. */ - vma->vm_flags |= (VM_SHM | VM_LOCKED | VM_IO); - prot = pgprot_val(vma->vm_page_prot); vma->vm_page_prot = __pgprot(prot); diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 05668e3598c0..5fd65325b81a 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -371,11 +371,11 @@ static int acpi_cpufreq_early_init_acpi(void) dprintk("acpi_cpufreq_early_init\n"); - for_each_cpu(i) { + for_each_possible_cpu(i) { data = kzalloc(sizeof(struct acpi_processor_performance), GFP_KERNEL); if (!data) { - for_each_cpu(j) { + for_each_possible_cpu(j) { kfree(acpi_perf_data[j]); acpi_perf_data[j] = NULL; } @@ -584,7 +584,7 @@ acpi_cpufreq_exit (void) cpufreq_unregister_driver(&acpi_cpufreq_driver); - for_each_cpu(i) { + for_each_possible_cpu(i) { kfree(acpi_perf_data[i]); acpi_perf_data[i] = NULL; } diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c index 31c3a5baaa7f..f7e4356f6820 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c @@ -361,11 +361,11 @@ static int centrino_cpu_early_init_acpi(void) unsigned int i, j; struct acpi_processor_performance *data; - for_each_cpu(i) { + for_each_possible_cpu(i) { data = kzalloc(sizeof(struct acpi_processor_performance), GFP_KERNEL); if (!data) { - for_each_cpu(j) { + for_each_possible_cpu(j) { kfree(acpi_perf_data[j]); acpi_perf_data[j] = NULL; } @@ -805,7 +805,7 @@ static void __exit centrino_exit(void) cpufreq_unregister_driver(¢rino_driver); #ifdef CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI - for_each_cpu(j) { + for_each_possible_cpu(j) { kfree(acpi_perf_data[j]); acpi_perf_data[j] = NULL; } diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 2b0cfce24a61..21dc1bbb8067 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -114,7 +114,8 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu) atomic_dec(&waiting_for_crash_ipi); /* Assume hlt works */ halt(); - for(;;); + for (;;) + cpu_relax(); return 1; } diff --git a/arch/i386/kernel/doublefault.c b/arch/i386/kernel/doublefault.c index 5edb1d379add..b4d14c2eb345 100644 --- a/arch/i386/kernel/doublefault.c +++ b/arch/i386/kernel/doublefault.c @@ -44,7 +44,8 @@ static void doublefault_fn(void) } } - for (;;) /* nothing */; + for (;;) + cpu_relax(); } struct tss_struct doublefault_tss __cacheline_aligned = { diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index e6023970aa40..6c1639836e06 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -61,7 +61,7 @@ #include <asm/io_apic.h> #include <asm/ist.h> #include <asm/io.h> -#include "setup_arch_pre.h" +#include <setup_arch.h> #include <bios_ebda.h> /* Forward Declaration. */ @@ -411,8 +411,8 @@ static void __init limit_regions(unsigned long long size) } } -static void __init add_memory_region(unsigned long long start, - unsigned long long size, int type) +void __init add_memory_region(unsigned long long start, + unsigned long long size, int type) { int x; @@ -475,7 +475,7 @@ static struct change_member *change_point[2*E820MAX] __initdata; static struct e820entry *overlap_list[E820MAX] __initdata; static struct e820entry new_bios[E820MAX] __initdata; -static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) +int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) { struct change_member *change_tmp; unsigned long current_type, last_type; @@ -644,7 +644,7 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) * thinkpad 560x, for example, does not cooperate with the memory * detection code.) */ -static int __init copy_e820_map(struct e820entry * biosmap, int nr_map) +int __init copy_e820_map(struct e820entry * biosmap, int nr_map) { /* Only one memory region (or negative)? Ignore it */ if (nr_map < 2) @@ -702,12 +702,6 @@ static inline void copy_edd(void) } #endif -/* - * Do NOT EVER look at the BIOS memory size location. - * It does not work on many machines. - */ -#define LOWMEMSIZE() (0x9f000) - static void __init parse_cmdline_early (char ** cmdline_p) { char c = ' ', *to = command_line, *from = saved_command_line; @@ -1424,8 +1418,6 @@ static void __init register_memory(void) pci_mem_start, gapstart, gapsize); } -static char * __init machine_specific_memory_setup(void); - #ifdef CONFIG_MCA static void set_mca_bus(int x) { @@ -1708,7 +1700,6 @@ static __init int add_pcspkr(void) } device_initcall(add_pcspkr); -#include "setup_arch_post.h" /* * Local Variables: * mode:c diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 825b2b4ca721..bd0ca5c9f053 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -257,7 +257,7 @@ static void __init synchronize_tsc_bp (void) * all APs synchronize but they loop on '== num_cpus' */ while (atomic_read(&tsc_count_start) != num_booting_cpus()-1) - mb(); + cpu_relax(); atomic_set(&tsc_count_stop, 0); wmb(); /* @@ -276,7 +276,7 @@ static void __init synchronize_tsc_bp (void) * Wait for all APs to leave the synchronization point: */ while (atomic_read(&tsc_count_stop) != num_booting_cpus()-1) - mb(); + cpu_relax(); atomic_set(&tsc_count_start, 0); wmb(); atomic_inc(&tsc_count_stop); @@ -333,19 +333,21 @@ static void __init synchronize_tsc_ap (void) * this gets called, so we first wait for the BP to * finish SMP initialization: */ - while (!atomic_read(&tsc_start_flag)) mb(); + while (!atomic_read(&tsc_start_flag)) + cpu_relax(); for (i = 0; i < NR_LOOPS; i++) { atomic_inc(&tsc_count_start); while (atomic_read(&tsc_count_start) != num_booting_cpus()) - mb(); + cpu_relax(); rdtscll(tsc_values[smp_processor_id()]); if (i == NR_LOOPS-1) write_tsc(0, 0); atomic_inc(&tsc_count_stop); - while (atomic_read(&tsc_count_stop) != num_booting_cpus()) mb(); + while (atomic_read(&tsc_count_stop) != num_booting_cpus()) + cpu_relax(); } } #undef NR_LOOPS @@ -1433,7 +1435,7 @@ int __devinit __cpu_up(unsigned int cpu) /* Unleash the CPU! */ cpu_set(cpu, smp_commenced_mask); while (!cpu_isset(cpu, cpu_online_map)) - mb(); + cpu_relax(); return 0; } diff --git a/arch/i386/lib/usercopy.c b/arch/i386/lib/usercopy.c index 6979297ce278..c5aa65f7c02a 100644 --- a/arch/i386/lib/usercopy.c +++ b/arch/i386/lib/usercopy.c @@ -528,6 +528,97 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to, return size; } +static unsigned long __copy_user_intel_nocache(void *to, + const void __user *from, unsigned long size) +{ + int d0, d1; + + __asm__ __volatile__( + " .align 2,0x90\n" + "0: movl 32(%4), %%eax\n" + " cmpl $67, %0\n" + " jbe 2f\n" + "1: movl 64(%4), %%eax\n" + " .align 2,0x90\n" + "2: movl 0(%4), %%eax\n" + "21: movl 4(%4), %%edx\n" + " movnti %%eax, 0(%3)\n" + " movnti %%edx, 4(%3)\n" + "3: movl 8(%4), %%eax\n" + "31: movl 12(%4),%%edx\n" + " movnti %%eax, 8(%3)\n" + " movnti %%edx, 12(%3)\n" + "4: movl 16(%4), %%eax\n" + "41: movl 20(%4), %%edx\n" + " movnti %%eax, 16(%3)\n" + " movnti %%edx, 20(%3)\n" + "10: movl 24(%4), %%eax\n" + "51: movl 28(%4), %%edx\n" + " movnti %%eax, 24(%3)\n" + " movnti %%edx, 28(%3)\n" + "11: movl 32(%4), %%eax\n" + "61: movl 36(%4), %%edx\n" + " movnti %%eax, 32(%3)\n" + " movnti %%edx, 36(%3)\n" + "12: movl 40(%4), %%eax\n" + "71: movl 44(%4), %%edx\n" + " movnti %%eax, 40(%3)\n" + " movnti %%edx, 44(%3)\n" + "13: movl 48(%4), %%eax\n" + "81: movl 52(%4), %%edx\n" + " movnti %%eax, 48(%3)\n" + " movnti %%edx, 52(%3)\n" + "14: movl 56(%4), %%eax\n" + "91: movl 60(%4), %%edx\n" + " movnti %%eax, 56(%3)\n" + " movnti %%edx, 60(%3)\n" + " addl $-64, %0\n" + " addl $64, %4\n" + " addl $64, %3\n" + " cmpl $63, %0\n" + " ja 0b\n" + " sfence \n" + "5: movl %0, %%eax\n" + " shrl $2, %0\n" + " andl $3, %%eax\n" + " cld\n" + "6: rep; movsl\n" + " movl %%eax,%0\n" + "7: rep; movsb\n" + "8:\n" + ".section .fixup,\"ax\"\n" + "9: lea 0(%%eax,%0,4),%0\n" + "16: jmp 8b\n" + ".previous\n" + ".section __ex_table,\"a\"\n" + " .align 4\n" + " .long 0b,16b\n" + " .long 1b,16b\n" + " .long 2b,16b\n" + " .long 21b,16b\n" + " .long 3b,16b\n" + " .long 31b,16b\n" + " .long 4b,16b\n" + " .long 41b,16b\n" + " .long 10b,16b\n" + " .long 51b,16b\n" + " .long 11b,16b\n" + " .long 61b,16b\n" + " .long 12b,16b\n" + " .long 71b,16b\n" + " .long 13b,16b\n" + " .long 81b,16b\n" + " .long 14b,16b\n" + " .long 91b,16b\n" + " .long 6b,9b\n" + " .long 7b,16b\n" + ".previous" + : "=&c"(size), "=&D" (d0), "=&S" (d1) + : "1"(to), "2"(from), "0"(size) + : "eax", "edx", "memory"); + return size; +} + #else /* @@ -694,6 +785,19 @@ unsigned long __copy_from_user_ll(void *to, const void __user *from, } EXPORT_SYMBOL(__copy_from_user_ll); +unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from, + unsigned long n) +{ + BUG_ON((long)n < 0); + if (movsl_is_ok(to, from, n)) + __copy_user(to, from, n); + else + n = __copy_user_intel((void __user *)to, + (const void *)from, n); + return n; +} +EXPORT_SYMBOL(__copy_from_user_ll_nozero); + unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from, unsigned long n) { @@ -709,6 +813,21 @@ unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from, return n; } +unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from, + unsigned long n) +{ + BUG_ON((long)n < 0); +#ifdef CONFIG_X86_INTEL_USERCOPY + if ( n > 64 && cpu_has_xmm2) + n = __copy_user_intel_nocache(to, from, n); + else + __copy_user(to, from, n); +#else + __copy_user(to, from, n); +#endif + return n; +} + /** * copy_to_user: - Copy a block of data into user space. * @to: Destination address, in user space. diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c index b4a7455c6993..004837c58793 100644 --- a/arch/i386/mach-default/setup.c +++ b/arch/i386/mach-default/setup.c @@ -8,6 +8,8 @@ #include <linux/interrupt.h> #include <asm/acpi.h> #include <asm/arch_hooks.h> +#include <asm/e820.h> +#include <asm/setup.h> #ifdef CONFIG_HOTPLUG_CPU #define DEFAULT_SEND_IPI (1) @@ -130,3 +132,44 @@ static int __init print_ipi_mode(void) } late_initcall(print_ipi_mode); + +/** + * machine_specific_memory_setup - Hook for machine specific memory setup. + * + * Description: + * This is included late in kernel/setup.c so that it can make + * use of all of the static functions. + **/ + +char * __init machine_specific_memory_setup(void) +{ + char *who; + + + who = "BIOS-e820"; + + /* + * Try to copy the BIOS-supplied E820-map. + * + * Otherwise fake a memory map; one section from 0k->640k, + * the next section from 1mb->appropriate_mem_k + */ + sanitize_e820_map(E820_MAP, &E820_MAP_NR); + if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) { + unsigned long mem_size; + + /* compare results from other methods and take the greater */ + if (ALT_MEM_K < EXT_MEM_K) { + mem_size = EXT_MEM_K; + who = "BIOS-88"; + } else { + mem_size = ALT_MEM_K; + who = "BIOS-e801"; + } + + e820.nr_map = 0; + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); + } + return who; +} diff --git a/arch/i386/mach-visws/setup.c b/arch/i386/mach-visws/setup.c index 07fac7e749c7..8a9e1a6f745d 100644 --- a/arch/i386/mach-visws/setup.c +++ b/arch/i386/mach-visws/setup.c @@ -10,6 +10,8 @@ #include <asm/fixmap.h> #include <asm/arch_hooks.h> #include <asm/io.h> +#include <asm/e820.h> +#include <asm/setup.h> #include "cobalt.h" #include "piix4.h" @@ -133,3 +135,50 @@ void __init time_init_hook(void) /* Wire cpu IDT entry to s/w handler (and Cobalt APIC to IDT) */ setup_irq(0, &irq0); } + +/* Hook for machine specific memory setup. */ + +#define MB (1024 * 1024) + +static unsigned long sgivwfb_mem_phys; +static unsigned long sgivwfb_mem_size; + +long long mem_size __initdata = 0; + +char * __init machine_specific_memory_setup(void) +{ + long long gfx_mem_size = 8 * MB; + + mem_size = ALT_MEM_K; + + if (!mem_size) { + printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n"); + mem_size = 128 * MB; + } + + /* + * this hardcodes the graphics memory to 8 MB + * it really should be sized dynamically (or at least + * set as a boot param) + */ + if (!sgivwfb_mem_size) { + printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n"); + sgivwfb_mem_size = 8 * MB; + } + + /* + * Trim to nearest MB + */ + sgivwfb_mem_size &= ~((1 << 20) - 1); + sgivwfb_mem_phys = mem_size - gfx_mem_size; + + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM); + add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED); + + return "PROM"; + + /* Remove gcc warnings */ + (void) sanitize_e820_map(NULL, NULL); + (void) copy_e820_map(NULL, 0); +} diff --git a/arch/i386/mach-voyager/setup.c b/arch/i386/mach-voyager/setup.c index 7d8a3acb9441..0e225054e222 100644 --- a/arch/i386/mach-voyager/setup.c +++ b/arch/i386/mach-voyager/setup.c @@ -7,6 +7,9 @@ #include <linux/interrupt.h> #include <asm/acpi.h> #include <asm/arch_hooks.h> +#include <asm/voyager.h> +#include <asm/e820.h> +#include <asm/setup.h> void __init pre_intr_init_hook(void) { @@ -45,3 +48,74 @@ void __init time_init_hook(void) { setup_irq(0, &irq0); } + +/* Hook for machine specific memory setup. */ + +char * __init machine_specific_memory_setup(void) +{ + char *who; + + who = "NOT VOYAGER"; + + if(voyager_level == 5) { + __u32 addr, length; + int i; + + who = "Voyager-SUS"; + + e820.nr_map = 0; + for(i=0; voyager_memory_detect(i, &addr, &length); i++) { + add_memory_region(addr, length, E820_RAM); + } + return who; + } else if(voyager_level == 4) { + __u32 tom; + __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8; + /* select the DINO config space */ + outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT); + /* Read DINO top of memory register */ + tom = ((inb(catbase + 0x4) & 0xf0) << 16) + + ((inb(catbase + 0x5) & 0x7f) << 24); + + if(inb(catbase) != VOYAGER_DINO) { + printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n"); + tom = (EXT_MEM_K)<<10; + } + who = "Voyager-TOM"; + add_memory_region(0, 0x9f000, E820_RAM); + /* map from 1M to top of memory */ + add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM); + /* FIXME: Should check the ASICs to see if I need to + * take out the 8M window. Just do it at the moment + * */ + add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED); + return who; + } + + who = "BIOS-e820"; + + /* + * Try to copy the BIOS-supplied E820-map. + * + * Otherwise fake a memory map; one section from 0k->640k, + * the next section from 1mb->appropriate_mem_k + */ + sanitize_e820_map(E820_MAP, &E820_MAP_NR); + if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) { + unsigned long mem_size; + + /* compare results from other methods and take the greater */ + if (ALT_MEM_K < EXT_MEM_K) { + mem_size = EXT_MEM_K; + who = "BIOS-88"; + } else { + mem_size = ALT_MEM_K; + who = "BIOS-e801"; + } + + e820.nr_map = 0; + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); + } + return who; +} diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c index 7852827a599b..a151f7a99f5e 100644 --- a/arch/i386/pci/i386.c +++ b/arch/i386/pci/i386.c @@ -285,8 +285,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, /* Leave vm_pgoff as-is, the PCI space address is the physical * address on this platform. */ - vma->vm_flags |= (VM_SHM | VM_LOCKED | VM_IO); - prot = pgprot_val(vma->vm_page_prot); if (boot_cpu_data.x86 > 3) prot |= _PAGE_PCD | _PAGE_PWT; diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index 4f3a16b37f8f..879edb51d1e0 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -166,7 +166,7 @@ static void cache_shared_cpu_map_setup( unsigned int cpu, num_shared = (int) csi.num_shared; do { - for_each_cpu(j) + for_each_possible_cpu(j) if (cpu_data(cpu)->socket_id == cpu_data(j)->socket_id && cpu_data(j)->core_id == csi.log1_cid && cpu_data(j)->thread_id == csi.log1_tid) diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 61dd8608da4f..77375a55da31 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -602,8 +602,6 @@ pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, * Leave vm_pgoff as-is, the PCI space address is the physical * address on this platform. */ - vma->vm_flags |= (VM_SHM | VM_RESERVED | VM_IO); - if (write_combine && efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); @@ -666,7 +664,6 @@ pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma) vma->vm_pgoff += (unsigned long)addr >> PAGE_SHIFT; vma->vm_page_prot = prot; - vma->vm_flags |= (VM_SHM | VM_RESERVED | VM_IO); if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, size, vma->vm_page_prot)) diff --git a/arch/m68k/amiga/amiga_ksyms.c b/arch/m68k/amiga/amiga_ksyms.c index b7bd84c73ea7..8f2e0587ae2f 100644 --- a/arch/m68k/amiga/amiga_ksyms.c +++ b/arch/m68k/amiga/amiga_ksyms.c @@ -23,8 +23,6 @@ EXPORT_SYMBOL(amiga_chip_avail); EXPORT_SYMBOL(amiga_chip_size); EXPORT_SYMBOL(amiga_audio_period); EXPORT_SYMBOL(amiga_audio_min_period); -EXPORT_SYMBOL(amiga_do_irq); -EXPORT_SYMBOL(amiga_do_irq_list); #ifdef CONFIG_AMIGA_PCMCIA EXPORT_SYMBOL(pcmcia_reset); diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index b0aa61bf8700..f9403f4640a1 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -35,61 +35,30 @@ * /Jes */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> #include <linux/init.h> +#include <linux/interrupt.h> #include <linux/errno.h> -#include <linux/seq_file.h> -#include <asm/system.h> #include <asm/irq.h> #include <asm/traps.h> #include <asm/amigahw.h> #include <asm/amigaints.h> #include <asm/amipcmcia.h> -extern int cia_request_irq(struct ciabase *base,int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id); -extern void cia_free_irq(struct ciabase *base, unsigned int irq, void *dev_id); -extern void cia_init_IRQ(struct ciabase *base); -extern int cia_get_irq_list(struct ciabase *base, struct seq_file *p); - -/* irq node variables for amiga interrupt sources */ -static irq_node_t *ami_irq_list[AMI_STD_IRQS]; - -static unsigned short amiga_intena_vals[AMI_STD_IRQS] = { - [IRQ_AMIGA_VERTB] = IF_VERTB, - [IRQ_AMIGA_COPPER] = IF_COPER, - [IRQ_AMIGA_AUD0] = IF_AUD0, - [IRQ_AMIGA_AUD1] = IF_AUD1, - [IRQ_AMIGA_AUD2] = IF_AUD2, - [IRQ_AMIGA_AUD3] = IF_AUD3, - [IRQ_AMIGA_BLIT] = IF_BLIT, - [IRQ_AMIGA_DSKSYN] = IF_DSKSYN, - [IRQ_AMIGA_DSKBLK] = IF_DSKBLK, - [IRQ_AMIGA_RBF] = IF_RBF, - [IRQ_AMIGA_TBE] = IF_TBE, - [IRQ_AMIGA_SOFT] = IF_SOFT, - [IRQ_AMIGA_PORTS] = IF_PORTS, - [IRQ_AMIGA_EXTER] = IF_EXTER -}; -static const unsigned char ami_servers[AMI_STD_IRQS] = { - [IRQ_AMIGA_VERTB] = 1, - [IRQ_AMIGA_PORTS] = 1, - [IRQ_AMIGA_EXTER] = 1 +static void amiga_enable_irq(unsigned int irq); +static void amiga_disable_irq(unsigned int irq); +static irqreturn_t ami_int1(int irq, void *dev_id, struct pt_regs *fp); +static irqreturn_t ami_int3(int irq, void *dev_id, struct pt_regs *fp); +static irqreturn_t ami_int4(int irq, void *dev_id, struct pt_regs *fp); +static irqreturn_t ami_int5(int irq, void *dev_id, struct pt_regs *fp); + +static struct irq_controller amiga_irq_controller = { + .name = "amiga", + .lock = SPIN_LOCK_UNLOCKED, + .enable = amiga_enable_irq, + .disable = amiga_disable_irq, }; -static short ami_ablecount[AMI_IRQS]; - -static irqreturn_t ami_badint(int irq, void *dev_id, struct pt_regs *fp) -{ - num_spurious += 1; - return IRQ_NONE; -} - /* * void amiga_init_IRQ(void) * @@ -103,23 +72,12 @@ static irqreturn_t ami_badint(int irq, void *dev_id, struct pt_regs *fp) void __init amiga_init_IRQ(void) { - int i; + request_irq(IRQ_AUTO_1, ami_int1, 0, "int1", NULL); + request_irq(IRQ_AUTO_3, ami_int3, 0, "int3", NULL); + request_irq(IRQ_AUTO_4, ami_int4, 0, "int4", NULL); + request_irq(IRQ_AUTO_5, ami_int5, 0, "int5", NULL); - /* initialize handlers */ - for (i = 0; i < AMI_STD_IRQS; i++) { - if (ami_servers[i]) { - ami_irq_list[i] = NULL; - } else { - ami_irq_list[i] = new_irq_node(); - ami_irq_list[i]->handler = ami_badint; - ami_irq_list[i]->flags = 0; - ami_irq_list[i]->dev_id = NULL; - ami_irq_list[i]->devname = NULL; - ami_irq_list[i]->next = NULL; - } - } - for (i = 0; i < AMI_IRQS; i++) - ami_ablecount[i] = 0; + m68k_setup_irq_controller(&amiga_irq_controller, IRQ_USER, AMI_STD_IRQS); /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) @@ -134,249 +92,21 @@ void __init amiga_init_IRQ(void) cia_init_IRQ(&ciab_base); } -static inline int amiga_insert_irq(irq_node_t **list, irq_node_t *node) -{ - unsigned long flags; - irq_node_t *cur; - - if (!node->dev_id) - printk("%s: Warning: dev_id of %s is zero\n", - __FUNCTION__, node->devname); - - local_irq_save(flags); - - cur = *list; - - if (node->flags & SA_INTERRUPT) { - if (node->flags & SA_SHIRQ) - return -EBUSY; - /* - * There should never be more than one - */ - while (cur && cur->flags & SA_INTERRUPT) { - list = &cur->next; - cur = cur->next; - } - } else { - while (cur) { - list = &cur->next; - cur = cur->next; - } - } - - node->next = cur; - *list = node; - - local_irq_restore(flags); - return 0; -} - -static inline void amiga_delete_irq(irq_node_t **list, void *dev_id) -{ - unsigned long flags; - irq_node_t *node; - - local_irq_save(flags); - - for (node = *list; node; list = &node->next, node = *list) { - if (node->dev_id == dev_id) { - *list = node->next; - /* Mark it as free. */ - node->handler = NULL; - local_irq_restore(flags); - return; - } - } - local_irq_restore(flags); - printk ("%s: tried to remove invalid irq\n", __FUNCTION__); -} - -/* - * amiga_request_irq : add an interrupt service routine for a particular - * machine specific interrupt source. - * If the addition was successful, it returns 0. - */ - -int amiga_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - irq_node_t *node; - int error = 0; - - if (irq >= AMI_IRQS) { - printk ("%s: Unknown IRQ %d from %s\n", __FUNCTION__, - irq, devname); - return -ENXIO; - } - - if (irq >= IRQ_AMIGA_AUTO) - return cpu_request_irq(irq - IRQ_AMIGA_AUTO, handler, - flags, devname, dev_id); - - if (irq >= IRQ_AMIGA_CIAB) - return cia_request_irq(&ciab_base, irq - IRQ_AMIGA_CIAB, - handler, flags, devname, dev_id); - - if (irq >= IRQ_AMIGA_CIAA) - return cia_request_irq(&ciaa_base, irq - IRQ_AMIGA_CIAA, - handler, flags, devname, dev_id); - - /* - * IRQ_AMIGA_PORTS & IRQ_AMIGA_EXTER defaults to shared, - * we could add a check here for the SA_SHIRQ flag but all drivers - * should be aware of sharing anyway. - */ - if (ami_servers[irq]) { - if (!(node = new_irq_node())) - return -ENOMEM; - node->handler = handler; - node->flags = flags; - node->dev_id = dev_id; - node->devname = devname; - node->next = NULL; - error = amiga_insert_irq(&ami_irq_list[irq], node); - } else { - ami_irq_list[irq]->handler = handler; - ami_irq_list[irq]->flags = flags; - ami_irq_list[irq]->dev_id = dev_id; - ami_irq_list[irq]->devname = devname; - } - - /* enable the interrupt */ - if (irq < IRQ_AMIGA_PORTS && !ami_ablecount[irq]) - amiga_custom.intena = IF_SETCLR | amiga_intena_vals[irq]; - - return error; -} - -void amiga_free_irq(unsigned int irq, void *dev_id) -{ - if (irq >= AMI_IRQS) { - printk ("%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (irq >= IRQ_AMIGA_AUTO) - cpu_free_irq(irq - IRQ_AMIGA_AUTO, dev_id); - - if (irq >= IRQ_AMIGA_CIAB) { - cia_free_irq(&ciab_base, irq - IRQ_AMIGA_CIAB, dev_id); - return; - } - - if (irq >= IRQ_AMIGA_CIAA) { - cia_free_irq(&ciaa_base, irq - IRQ_AMIGA_CIAA, dev_id); - return; - } - - if (ami_servers[irq]) { - amiga_delete_irq(&ami_irq_list[irq], dev_id); - /* if server list empty, disable the interrupt */ - if (!ami_irq_list[irq] && irq < IRQ_AMIGA_PORTS) - amiga_custom.intena = amiga_intena_vals[irq]; - } else { - if (ami_irq_list[irq]->dev_id != dev_id) - printk("%s: removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, ami_irq_list[irq]->devname); - ami_irq_list[irq]->handler = ami_badint; - ami_irq_list[irq]->flags = 0; - ami_irq_list[irq]->dev_id = NULL; - ami_irq_list[irq]->devname = NULL; - amiga_custom.intena = amiga_intena_vals[irq]; - } -} - /* * Enable/disable a particular machine specific interrupt source. * Note that this may affect other interrupts in case of a shared interrupt. * This function should only be called for a _very_ short time to change some * internal data, that may not be changed by the interrupt at the same time. - * ami_(enable|disable)_irq calls may also be nested. */ -void amiga_enable_irq(unsigned int irq) -{ - if (irq >= AMI_IRQS) { - printk("%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (--ami_ablecount[irq]) - return; - - /* No action for auto-vector interrupts */ - if (irq >= IRQ_AMIGA_AUTO){ - printk("%s: Trying to enable auto-vector IRQ %i\n", - __FUNCTION__, irq - IRQ_AMIGA_AUTO); - return; - } - - if (irq >= IRQ_AMIGA_CIAB) { - cia_set_irq(&ciab_base, (1 << (irq - IRQ_AMIGA_CIAB))); - cia_able_irq(&ciab_base, CIA_ICR_SETCLR | - (1 << (irq - IRQ_AMIGA_CIAB))); - return; - } - - if (irq >= IRQ_AMIGA_CIAA) { - cia_set_irq(&ciaa_base, (1 << (irq - IRQ_AMIGA_CIAA))); - cia_able_irq(&ciaa_base, CIA_ICR_SETCLR | - (1 << (irq - IRQ_AMIGA_CIAA))); - return; - } - - /* enable the interrupt */ - amiga_custom.intena = IF_SETCLR | amiga_intena_vals[irq]; -} - -void amiga_disable_irq(unsigned int irq) -{ - if (irq >= AMI_IRQS) { - printk("%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (ami_ablecount[irq]++) - return; - - /* No action for auto-vector interrupts */ - if (irq >= IRQ_AMIGA_AUTO) { - printk("%s: Trying to disable auto-vector IRQ %i\n", - __FUNCTION__, irq - IRQ_AMIGA_AUTO); - return; - } - - if (irq >= IRQ_AMIGA_CIAB) { - cia_able_irq(&ciab_base, 1 << (irq - IRQ_AMIGA_CIAB)); - return; - } - - if (irq >= IRQ_AMIGA_CIAA) { - cia_able_irq(&ciaa_base, 1 << (irq - IRQ_AMIGA_CIAA)); - return; - } - - /* disable the interrupt */ - amiga_custom.intena = amiga_intena_vals[irq]; -} - -inline void amiga_do_irq(int irq, struct pt_regs *fp) +static void amiga_enable_irq(unsigned int irq) { - kstat_cpu(0).irqs[SYS_IRQS + irq]++; - ami_irq_list[irq]->handler(irq, ami_irq_list[irq]->dev_id, fp); + amiga_custom.intena = IF_SETCLR | (1 << (irq - IRQ_USER)); } -void amiga_do_irq_list(int irq, struct pt_regs *fp) +static void amiga_disable_irq(unsigned int irq) { - irq_node_t *node; - - kstat_cpu(0).irqs[SYS_IRQS + irq]++; - - amiga_custom.intreq = amiga_intena_vals[irq]; - - for (node = ami_irq_list[irq]; node; node = node->next) - node->handler(irq, node->dev_id, fp); + amiga_custom.intena = 1 << (irq - IRQ_USER); } /* @@ -390,19 +120,19 @@ static irqreturn_t ami_int1(int irq, void *dev_id, struct pt_regs *fp) /* if serial transmit buffer empty, interrupt */ if (ints & IF_TBE) { amiga_custom.intreq = IF_TBE; - amiga_do_irq(IRQ_AMIGA_TBE, fp); + m68k_handle_int(IRQ_AMIGA_TBE, fp); } /* if floppy disk transfer complete, interrupt */ if (ints & IF_DSKBLK) { amiga_custom.intreq = IF_DSKBLK; - amiga_do_irq(IRQ_AMIGA_DSKBLK, fp); + m68k_handle_int(IRQ_AMIGA_DSKBLK, fp); } /* if software interrupt set, interrupt */ if (ints & IF_SOFT) { amiga_custom.intreq = IF_SOFT; - amiga_do_irq(IRQ_AMIGA_SOFT, fp); + m68k_handle_int(IRQ_AMIGA_SOFT, fp); } return IRQ_HANDLED; } @@ -414,18 +144,20 @@ static irqreturn_t ami_int3(int irq, void *dev_id, struct pt_regs *fp) /* if a blitter interrupt */ if (ints & IF_BLIT) { amiga_custom.intreq = IF_BLIT; - amiga_do_irq(IRQ_AMIGA_BLIT, fp); + m68k_handle_int(IRQ_AMIGA_BLIT, fp); } /* if a copper interrupt */ if (ints & IF_COPER) { amiga_custom.intreq = IF_COPER; - amiga_do_irq(IRQ_AMIGA_COPPER, fp); + m68k_handle_int(IRQ_AMIGA_COPPER, fp); } /* if a vertical blank interrupt */ - if (ints & IF_VERTB) - amiga_do_irq_list(IRQ_AMIGA_VERTB, fp); + if (ints & IF_VERTB) { + amiga_custom.intreq = IF_VERTB; + m68k_handle_int(IRQ_AMIGA_VERTB, fp); + } return IRQ_HANDLED; } @@ -436,25 +168,25 @@ static irqreturn_t ami_int4(int irq, void *dev_id, struct pt_regs *fp) /* if audio 0 interrupt */ if (ints & IF_AUD0) { amiga_custom.intreq = IF_AUD0; - amiga_do_irq(IRQ_AMIGA_AUD0, fp); + m68k_handle_int(IRQ_AMIGA_AUD0, fp); } /* if audio 1 interrupt */ if (ints & IF_AUD1) { amiga_custom.intreq = IF_AUD1; - amiga_do_irq(IRQ_AMIGA_AUD1, fp); + m68k_handle_int(IRQ_AMIGA_AUD1, fp); } /* if audio 2 interrupt */ if (ints & IF_AUD2) { amiga_custom.intreq = IF_AUD2; - amiga_do_irq(IRQ_AMIGA_AUD2, fp); + m68k_handle_int(IRQ_AMIGA_AUD2, fp); } /* if audio 3 interrupt */ if (ints & IF_AUD3) { amiga_custom.intreq = IF_AUD3; - amiga_do_irq(IRQ_AMIGA_AUD3, fp); + m68k_handle_int(IRQ_AMIGA_AUD3, fp); } return IRQ_HANDLED; } @@ -466,55 +198,13 @@ static irqreturn_t ami_int5(int irq, void *dev_id, struct pt_regs *fp) /* if serial receive buffer full interrupt */ if (ints & IF_RBF) { /* acknowledge of IF_RBF must be done by the serial interrupt */ - amiga_do_irq(IRQ_AMIGA_RBF, fp); + m68k_handle_int(IRQ_AMIGA_RBF, fp); } /* if a disk sync interrupt */ if (ints & IF_DSKSYN) { amiga_custom.intreq = IF_DSKSYN; - amiga_do_irq(IRQ_AMIGA_DSKSYN, fp); + m68k_handle_int(IRQ_AMIGA_DSKSYN, fp); } return IRQ_HANDLED; } - -static irqreturn_t ami_int7(int irq, void *dev_id, struct pt_regs *fp) -{ - panic ("level 7 interrupt received\n"); -} - -irqreturn_t (*amiga_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = { - [0] = ami_badint, - [1] = ami_int1, - [2] = ami_badint, - [3] = ami_int3, - [4] = ami_int4, - [5] = ami_int5, - [6] = ami_badint, - [7] = ami_int7 -}; - -int show_amiga_interrupts(struct seq_file *p, void *v) -{ - int i; - irq_node_t *node; - - for (i = 0; i < AMI_STD_IRQS; i++) { - if (!(node = ami_irq_list[i])) - continue; - seq_printf(p, "ami %2d: %10u ", i, - kstat_cpu(0).irqs[SYS_IRQS + i]); - do { - if (node->flags & SA_INTERRUPT) - seq_puts(p, "F "); - else - seq_puts(p, " "); - seq_printf(p, "%s\n", node->devname); - if ((node = node->next)) - seq_puts(p, " "); - } while (node); - } - - cia_get_irq_list(&ciaa_base, p); - cia_get_irq_list(&ciab_base, p); - return 0; -} diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index 9476eb9440f5..0956e45399e5 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -29,21 +29,18 @@ struct ciabase { unsigned short int_mask; int handler_irq, cia_irq, server_irq; char *name; - irq_handler_t irq_list[CIA_IRQS]; } ciaa_base = { .cia = &ciaa, .int_mask = IF_PORTS, - .handler_irq = IRQ_AMIGA_AUTO_2, + .handler_irq = IRQ_AMIGA_PORTS, .cia_irq = IRQ_AMIGA_CIAA, - .server_irq = IRQ_AMIGA_PORTS, - .name = "CIAA handler" + .name = "CIAA" }, ciab_base = { .cia = &ciab, .int_mask = IF_EXTER, - .handler_irq = IRQ_AMIGA_AUTO_6, + .handler_irq = IRQ_AMIGA_EXTER, .cia_irq = IRQ_AMIGA_CIAB, - .server_irq = IRQ_AMIGA_EXTER, - .name = "CIAB handler" + .name = "CIAB" }; /* @@ -66,13 +63,11 @@ unsigned char cia_set_irq(struct ciabase *base, unsigned char mask) /* * Enable or disable CIA interrupts, return old interrupt mask, - * interrupts will only be enabled if a handler exists */ unsigned char cia_able_irq(struct ciabase *base, unsigned char mask) { - unsigned char old, tmp; - int i; + unsigned char old; old = base->icr_mask; base->icr_data |= base->cia->icr; @@ -82,99 +77,104 @@ unsigned char cia_able_irq(struct ciabase *base, unsigned char mask) else base->icr_mask &= ~mask; base->icr_mask &= CIA_ICR_ALL; - for (i = 0, tmp = 1; i < CIA_IRQS; i++, tmp <<= 1) { - if ((tmp & base->icr_mask) && !base->irq_list[i].handler) { - base->icr_mask &= ~tmp; - base->cia->icr = tmp; - } - } if (base->icr_data & base->icr_mask) amiga_custom.intreq = IF_SETCLR | base->int_mask; return old; } -int cia_request_irq(struct ciabase *base, unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - unsigned char mask; - - base->irq_list[irq].handler = handler; - base->irq_list[irq].flags = flags; - base->irq_list[irq].dev_id = dev_id; - base->irq_list[irq].devname = devname; - - /* enable the interrupt */ - mask = 1 << irq; - cia_set_irq(base, mask); - cia_able_irq(base, CIA_ICR_SETCLR | mask); - return 0; -} - -void cia_free_irq(struct ciabase *base, unsigned int irq, void *dev_id) -{ - if (base->irq_list[irq].dev_id != dev_id) - printk("%s: removing probably wrong IRQ %i from %s\n", - __FUNCTION__, base->cia_irq + irq, - base->irq_list[irq].devname); - - base->irq_list[irq].handler = NULL; - base->irq_list[irq].flags = 0; - - cia_able_irq(base, 1 << irq); -} - static irqreturn_t cia_handler(int irq, void *dev_id, struct pt_regs *fp) { struct ciabase *base = (struct ciabase *)dev_id; - int mach_irq, i; + int mach_irq; unsigned char ints; mach_irq = base->cia_irq; - irq = SYS_IRQS + mach_irq; ints = cia_set_irq(base, CIA_ICR_ALL); amiga_custom.intreq = base->int_mask; - for (i = 0; i < CIA_IRQS; i++, irq++, mach_irq++) { - if (ints & 1) { - kstat_cpu(0).irqs[irq]++; - base->irq_list[i].handler(mach_irq, base->irq_list[i].dev_id, fp); - } - ints >>= 1; + for (; ints; mach_irq++, ints >>= 1) { + if (ints & 1) + m68k_handle_int(mach_irq, fp); } - amiga_do_irq_list(base->server_irq, fp); return IRQ_HANDLED; } -void __init cia_init_IRQ(struct ciabase *base) +static void cia_enable_irq(unsigned int irq) { - int i; + unsigned char mask; - /* init isr handlers */ - for (i = 0; i < CIA_IRQS; i++) { - base->irq_list[i].handler = NULL; - base->irq_list[i].flags = 0; + if (irq >= IRQ_AMIGA_CIAB) { + mask = 1 << (irq - IRQ_AMIGA_CIAB); + cia_set_irq(&ciab_base, mask); + cia_able_irq(&ciab_base, CIA_ICR_SETCLR | mask); + } else { + mask = 1 << (irq - IRQ_AMIGA_CIAA); + cia_set_irq(&ciaa_base, mask); + cia_able_irq(&ciaa_base, CIA_ICR_SETCLR | mask); } +} - /* clear any pending interrupt and turn off all interrupts */ - cia_set_irq(base, CIA_ICR_ALL); - cia_able_irq(base, CIA_ICR_ALL); +static void cia_disable_irq(unsigned int irq) +{ + if (irq >= IRQ_AMIGA_CIAB) + cia_able_irq(&ciab_base, 1 << (irq - IRQ_AMIGA_CIAB)); + else + cia_able_irq(&ciaa_base, 1 << (irq - IRQ_AMIGA_CIAA)); +} - /* install CIA handler */ - request_irq(base->handler_irq, cia_handler, 0, base->name, base); +static struct irq_controller cia_irq_controller = { + .name = "cia", + .lock = SPIN_LOCK_UNLOCKED, + .enable = cia_enable_irq, + .disable = cia_disable_irq, +}; + +/* + * Override auto irq 2 & 6 and use them as general chain + * for external interrupts, we link the CIA interrupt sources + * into this chain. + */ - amiga_custom.intena = IF_SETCLR | base->int_mask; +static void auto_enable_irq(unsigned int irq) +{ + switch (irq) { + case IRQ_AUTO_2: + amiga_custom.intena = IF_SETCLR | IF_PORTS; + break; + case IRQ_AUTO_6: + amiga_custom.intena = IF_SETCLR | IF_EXTER; + break; + } } -int cia_get_irq_list(struct ciabase *base, struct seq_file *p) +static void auto_disable_irq(unsigned int irq) { - int i, j; - - j = base->cia_irq; - for (i = 0; i < CIA_IRQS; i++) { - seq_printf(p, "cia %2d: %10d ", j + i, - kstat_cpu(0).irqs[SYS_IRQS + j + i]); - seq_puts(p, " "); - seq_printf(p, "%s\n", base->irq_list[i].devname); + switch (irq) { + case IRQ_AUTO_2: + amiga_custom.intena = IF_PORTS; + break; + case IRQ_AUTO_6: + amiga_custom.intena = IF_EXTER; + break; } - return 0; +} + +static struct irq_controller auto_irq_controller = { + .name = "auto", + .lock = SPIN_LOCK_UNLOCKED, + .enable = auto_enable_irq, + .disable = auto_disable_irq, +}; + +void __init cia_init_IRQ(struct ciabase *base) +{ + m68k_setup_irq_controller(&cia_irq_controller, base->cia_irq, CIA_IRQS); + + /* clear any pending interrupt and turn off all interrupts */ + cia_set_irq(base, CIA_ICR_ALL); + cia_able_irq(base, CIA_ICR_ALL); + + /* override auto int and install CIA handler */ + m68k_setup_irq_controller(&auto_irq_controller, base->handler_irq, 1); + m68k_irq_startup(base->handler_irq); + request_irq(base->handler_irq, cia_handler, SA_SHIRQ, base->name, base); } diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 12e3706fe02c..b5b8a416a07a 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -87,17 +87,8 @@ extern char m68k_debug_device[]; static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); /* amiga specific irq functions */ extern void amiga_init_IRQ (void); -extern irqreturn_t (*amiga_default_handler[]) (int, void *, struct pt_regs *); -extern int amiga_request_irq (unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, - void *dev_id); -extern void amiga_free_irq (unsigned int irq, void *dev_id); -extern void amiga_enable_irq (unsigned int); -extern void amiga_disable_irq (unsigned int); static void amiga_get_model(char *model); static int amiga_get_hardware_list(char *buffer); -extern int show_amiga_interrupts (struct seq_file *, void *); /* amiga specific timer functions */ static unsigned long amiga_gettimeoffset (void); static int a3000_hwclk (int, struct rtc_time *); @@ -392,14 +383,8 @@ void __init config_amiga(void) mach_sched_init = amiga_sched_init; mach_init_IRQ = amiga_init_IRQ; - mach_default_handler = &amiga_default_handler; - mach_request_irq = amiga_request_irq; - mach_free_irq = amiga_free_irq; - enable_irq = amiga_enable_irq; - disable_irq = amiga_disable_irq; mach_get_model = amiga_get_model; mach_get_hardware_list = amiga_get_hardware_list; - mach_get_irq_list = show_amiga_interrupts; mach_gettimeoffset = amiga_gettimeoffset; if (AMIGAHW_PRESENT(A3000_CLK)){ mach_hwclk = a3000_hwclk; diff --git a/arch/m68k/apollo/Makefile b/arch/m68k/apollo/Makefile index 39264f3b6ad6..76a057962c38 100644 --- a/arch/m68k/apollo/Makefile +++ b/arch/m68k/apollo/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/amiga source directory # -obj-y := config.o dn_ints.o dma.o +obj-y := config.o dn_ints.o diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c index d401962d9b25..99c70978aafa 100644 --- a/arch/m68k/apollo/config.c +++ b/arch/m68k/apollo/config.c @@ -28,11 +28,6 @@ u_long apollo_model; extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *)); extern void dn_init_IRQ(void); -extern int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); -extern void dn_free_irq(unsigned int irq, void *dev_id); -extern void dn_enable_irq(unsigned int); -extern void dn_disable_irq(unsigned int); -extern int show_dn_interrupts(struct seq_file *, void *); extern unsigned long dn_gettimeoffset(void); extern int dn_dummy_hwclk(int, struct rtc_time *); extern int dn_dummy_set_clock_mmss(unsigned long); @@ -40,13 +35,11 @@ extern void dn_dummy_reset(void); extern void dn_dummy_waitbut(void); extern struct fb_info *dn_fb_init(long *); extern void dn_dummy_debug_init(void); -extern void dn_dummy_video_setup(char *,int *); extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp); #ifdef CONFIG_HEARTBEAT static void dn_heartbeat(int on); #endif static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *); -static irqreturn_t (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL; static void dn_get_model(char *model); static const char *apollo_models[] = { [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)", @@ -164,17 +157,10 @@ void config_apollo(void) { mach_sched_init=dn_sched_init; /* */ mach_init_IRQ=dn_init_IRQ; - mach_default_handler=NULL; - mach_request_irq = dn_request_irq; - mach_free_irq = dn_free_irq; - enable_irq = dn_enable_irq; - disable_irq = dn_disable_irq; - mach_get_irq_list = show_dn_interrupts; mach_gettimeoffset = dn_gettimeoffset; mach_max_dma_address = 0xffffffff; mach_hwclk = dn_dummy_hwclk; /* */ mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */ - mach_process_int = dn_process_int; mach_reset = dn_dummy_reset; /* */ #ifdef CONFIG_HEARTBEAT mach_heartbeat = dn_heartbeat; @@ -189,11 +175,13 @@ void config_apollo(void) { } -irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) { +irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) +{ + irqreturn_t (*timer_handler)(int, void *, struct pt_regs *) = dev_id; volatile unsigned char x; - sched_timer_handler(irq,dev_id,fp); + timer_handler(irq, dev_id, fp); x=*(volatile unsigned char *)(timer+3); x=*(volatile unsigned char *)(timer+5); @@ -217,9 +205,7 @@ void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3)); #endif - sched_timer_handler=timer_routine; - request_irq(0,dn_timer_int,0,NULL,NULL); - + request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine); } unsigned long dn_gettimeoffset(void) { diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index a31259359a12..9fe07803797b 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -1,125 +1,44 @@ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/jiffies.h> -#include <linux/kernel_stat.h> -#include <linux/timer.h> +#include <linux/interrupt.h> -#include <asm/system.h> #include <asm/irq.h> #include <asm/traps.h> -#include <asm/page.h> -#include <asm/machdep.h> #include <asm/apollohw.h> -#include <asm/errno.h> -static irq_handler_t dn_irqs[16]; - -irqreturn_t dn_process_int(int irq, struct pt_regs *fp) +void dn_process_int(unsigned int irq, struct pt_regs *fp) { - irqreturn_t res = IRQ_NONE; - - if(dn_irqs[irq-160].handler) { - res = dn_irqs[irq-160].handler(irq,dn_irqs[irq-160].dev_id,fp); - } else { - printk("spurious irq %d occurred\n",irq); - } - - *(volatile unsigned char *)(pica)=0x20; - *(volatile unsigned char *)(picb)=0x20; - - return res; -} - -void dn_init_IRQ(void) { - - int i; - - for(i=0;i<16;i++) { - dn_irqs[i].handler=NULL; - dn_irqs[i].flags=IRQ_FLG_STD; - dn_irqs[i].dev_id=NULL; - dn_irqs[i].devname=NULL; - } - -} - -int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id) { - - if((irq<0) || (irq>15)) { - printk("Trying to request invalid IRQ\n"); - return -ENXIO; - } - - if(!dn_irqs[irq].handler) { - dn_irqs[irq].handler=handler; - dn_irqs[irq].flags=IRQ_FLG_STD; - dn_irqs[irq].dev_id=dev_id; - dn_irqs[irq].devname=devname; - if(irq<8) - *(volatile unsigned char *)(pica+1)&=~(1<<irq); - else - *(volatile unsigned char *)(picb+1)&=~(1<<(irq-8)); - - return 0; - } - else { - printk("Trying to request already assigned irq %d\n",irq); - return -ENXIO; - } - -} - -void dn_free_irq(unsigned int irq, void *dev_id) { - - if((irq<0) || (irq>15)) { - printk("Trying to free invalid IRQ\n"); - return ; - } - - if(irq<8) - *(volatile unsigned char *)(pica+1)|=(1<<irq); - else - *(volatile unsigned char *)(picb+1)|=(1<<(irq-8)); - - dn_irqs[irq].handler=NULL; - dn_irqs[irq].flags=IRQ_FLG_STD; - dn_irqs[irq].dev_id=NULL; - dn_irqs[irq].devname=NULL; - - return ; - -} - -void dn_enable_irq(unsigned int irq) { - - printk("dn enable irq\n"); - -} - -void dn_disable_irq(unsigned int irq) { - - printk("dn disable irq\n"); + m68k_handle_int(irq, fp); + *(volatile unsigned char *)(pica)=0x20; + *(volatile unsigned char *)(picb)=0x20; } -int show_dn_interrupts(struct seq_file *p, void *v) { - - printk("dn get irq list\n"); - - return 0; - +int apollo_irq_startup(unsigned int irq) +{ + if (irq < 8) + *(volatile unsigned char *)(pica+1) &= ~(1 << irq); + else + *(volatile unsigned char *)(picb+1) &= ~(1 << (irq - 8)); + return 0; } -struct fb_info *dn_dummy_fb_init(long *mem_start) { - - printk("fb init\n"); - - return NULL; - +void apollo_irq_shutdown(unsigned int irq) +{ + if (irq < 8) + *(volatile unsigned char *)(pica+1) |= (1 << irq); + else + *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8)); } -void dn_dummy_video_setup(char *options,int *ints) { +static struct irq_controller apollo_irq_controller = { + .name = "apollo", + .lock = SPIN_LOCK_UNLOCKED, + .startup = apollo_irq_startup, + .shutdown = apollo_irq_shutdown, +}; - printk("no video yet\n"); +void dn_init_IRQ(void) +{ + m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int); + m68k_setup_irq_controller(&apollo_irq_controller, IRQ_APOLLO, 16); } diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 076f47917842..ece13cbf9950 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -104,6 +104,7 @@ * the sr copy in the frame. */ +#if 0 #define NUM_INT_SOURCES (8 + NUM_ATARI_SOURCES) @@ -133,13 +134,6 @@ static struct irqhandler irq_handler[NUM_INT_SOURCES]; */ static struct irqparam irq_param[NUM_INT_SOURCES]; -/* - * Bitmap for free interrupt vector numbers - * (new vectors starting from 0x70 can be allocated by - * atari_register_vme_int()) - */ -static int free_vme_vec_bitmap; - /* check for valid int number (complex, sigh...) */ #define IS_VALID_INTNO(n) \ ((n) > 0 && \ @@ -301,6 +295,14 @@ __asm__ (__ALIGN_STR "\n" ); for (;;); } +#endif + +/* + * Bitmap for free interrupt vector numbers + * (new vectors starting from 0x70 can be allocated by + * atari_register_vme_int()) + */ +static int free_vme_vec_bitmap; /* GK: * HBL IRQ handler for Falcon. Nobody needs it :-) @@ -313,13 +315,34 @@ __ALIGN_STR "\n\t" "orw #0x200,%sp@\n\t" /* set saved ipl to 2 */ "rte"); -/* Defined in entry.S; only increments 'num_spurious' */ -asmlinkage void bad_interrupt(void); - -extern void atari_microwire_cmd( int cmd ); +extern void atari_microwire_cmd(int cmd); extern int atari_SCC_reset_done; +static int atari_startup_irq(unsigned int irq) +{ + m68k_irq_startup(irq); + atari_turnon_irq(irq); + atari_enable_irq(irq); + return 0; +} + +static void atari_shutdown_irq(unsigned int irq) +{ + atari_disable_irq(irq); + atari_turnoff_irq(irq); + m68k_irq_shutdown(irq); +} + +static struct irq_controller atari_irq_controller = { + .name = "atari", + .lock = SPIN_LOCK_UNLOCKED, + .startup = atari_startup_irq, + .shutdown = atari_shutdown_irq, + .enable = atari_enable_irq, + .disable = atari_disable_irq, +}; + /* * void atari_init_IRQ (void) * @@ -333,12 +356,8 @@ extern int atari_SCC_reset_done; void __init atari_init_IRQ(void) { - int i; - - /* initialize the vector table */ - for (i = 0; i < NUM_INT_SOURCES; ++i) { - vectors[IRQ_SOURCE_TO_VECTOR(i)] = bad_interrupt; - } + m68k_setup_user_interrupt(VEC_USER, 192, NULL); + m68k_setup_irq_controller(&atari_irq_controller, 1, NUM_ATARI_SOURCES - 1); /* Initialize the MFP(s) */ @@ -378,8 +397,7 @@ void __init atari_init_IRQ(void) * enabled in VME mask */ tt_scu.vme_mask = 0x60; /* enable MFP and SCC ints */ - } - else { + } else { /* If no SCU and no Hades, the HSYNC interrupt needs to be * disabled this way. (Else _inthandler in kernel/sys_call.S * gets overruns) @@ -404,184 +422,6 @@ void __init atari_init_IRQ(void) } -static irqreturn_t atari_call_irq_list( int irq, void *dev_id, struct pt_regs *fp ) -{ - irq_node_t *node; - - for (node = (irq_node_t *)dev_id; node; node = node->next) - node->handler(irq, node->dev_id, fp); - return IRQ_HANDLED; -} - - -/* - * atari_request_irq : add an interrupt service routine for a particular - * machine specific interrupt source. - * If the addition was successful, it returns 0. - */ - -int atari_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - int vector; - unsigned long oflags = flags; - - /* - * The following is a hack to make some PCI card drivers work, - * which set the SA_SHIRQ flag. - */ - - flags &= ~SA_SHIRQ; - - if (flags == SA_INTERRUPT) { - printk ("%s: SA_INTERRUPT changed to IRQ_TYPE_SLOW for %s\n", - __FUNCTION__, devname); - flags = IRQ_TYPE_SLOW; - } - if (flags < IRQ_TYPE_SLOW || flags > IRQ_TYPE_PRIO) { - printk ("%s: Bad irq type 0x%lx <0x%lx> requested from %s\n", - __FUNCTION__, flags, oflags, devname); - return -EINVAL; - } - if (!IS_VALID_INTNO(irq)) { - printk ("%s: Unknown irq %d requested from %s\n", - __FUNCTION__, irq, devname); - return -ENXIO; - } - vector = IRQ_SOURCE_TO_VECTOR(irq); - - /* - * Check type/source combination: slow ints are (currently) - * only possible for MFP-interrupts. - */ - if (flags == IRQ_TYPE_SLOW && - (irq < STMFP_SOURCE_BASE || irq >= SCC_SOURCE_BASE)) { - printk ("%s: Slow irq requested for non-MFP source %d from %s\n", - __FUNCTION__, irq, devname); - return -EINVAL; - } - - if (vectors[vector] == bad_interrupt) { - /* int has no handler yet */ - irq_handler[irq].handler = handler; - irq_handler[irq].dev_id = dev_id; - irq_param[irq].flags = flags; - irq_param[irq].devname = devname; - vectors[vector] = - (flags == IRQ_TYPE_SLOW) ? slow_handlers[irq-STMFP_SOURCE_BASE] : - (flags == IRQ_TYPE_FAST) ? atari_fast_irq_handler : - atari_prio_irq_handler; - /* If MFP int, also enable and umask it */ - atari_turnon_irq(irq); - atari_enable_irq(irq); - - return 0; - } - else if (irq_param[irq].flags == flags) { - /* old handler is of same type -> handlers can be chained */ - irq_node_t *node; - unsigned long flags; - - local_irq_save(flags); - - if (irq_handler[irq].handler != atari_call_irq_list) { - /* Only one handler yet, make a node for this first one */ - if (!(node = new_irq_node())) - return -ENOMEM; - node->handler = irq_handler[irq].handler; - node->dev_id = irq_handler[irq].dev_id; - node->devname = irq_param[irq].devname; - node->next = NULL; - - irq_handler[irq].handler = atari_call_irq_list; - irq_handler[irq].dev_id = node; - irq_param[irq].devname = "chained"; - } - - if (!(node = new_irq_node())) - return -ENOMEM; - node->handler = handler; - node->dev_id = dev_id; - node->devname = devname; - /* new handlers are put in front of the queue */ - node->next = irq_handler[irq].dev_id; - irq_handler[irq].dev_id = node; - - local_irq_restore(flags); - return 0; - } else { - printk ("%s: Irq %d allocated by other type int (call from %s)\n", - __FUNCTION__, irq, devname); - return -EBUSY; - } -} - -void atari_free_irq(unsigned int irq, void *dev_id) -{ - unsigned long flags; - int vector; - irq_node_t **list, *node; - - if (!IS_VALID_INTNO(irq)) { - printk("%s: Unknown irq %d\n", __FUNCTION__, irq); - return; - } - - vector = IRQ_SOURCE_TO_VECTOR(irq); - if (vectors[vector] == bad_interrupt) - goto not_found; - - local_irq_save(flags); - - if (irq_handler[irq].handler != atari_call_irq_list) { - /* It's the only handler for the interrupt */ - if (irq_handler[irq].dev_id != dev_id) { - local_irq_restore(flags); - goto not_found; - } - irq_handler[irq].handler = NULL; - irq_handler[irq].dev_id = NULL; - irq_param[irq].devname = NULL; - vectors[vector] = bad_interrupt; - /* If MFP int, also disable it */ - atari_disable_irq(irq); - atari_turnoff_irq(irq); - - local_irq_restore(flags); - return; - } - - /* The interrupt is chained, find the irq on the list */ - for(list = (irq_node_t **)&irq_handler[irq].dev_id; *list; list = &(*list)->next) { - if ((*list)->dev_id == dev_id) break; - } - if (!*list) { - local_irq_restore(flags); - goto not_found; - } - - (*list)->handler = NULL; /* Mark it as free for reallocation */ - *list = (*list)->next; - - /* If there's now only one handler, unchain the interrupt, i.e. plug in - * the handler directly again and omit atari_call_irq_list */ - node = (irq_node_t *)irq_handler[irq].dev_id; - if (node && !node->next) { - irq_handler[irq].handler = node->handler; - irq_handler[irq].dev_id = node->dev_id; - irq_param[irq].devname = node->devname; - node->handler = NULL; /* Mark it as free for reallocation */ - } - - local_irq_restore(flags); - return; - -not_found: - printk("%s: tried to remove invalid irq\n", __FUNCTION__); - return; -} - - /* * atari_register_vme_int() returns the number of a free interrupt vector for * hardware with a programmable int vector (probably a VME board). @@ -591,58 +431,24 @@ unsigned long atari_register_vme_int(void) { int i; - for(i = 0; i < 32; i++) - if((free_vme_vec_bitmap & (1 << i)) == 0) + for (i = 0; i < 32; i++) + if ((free_vme_vec_bitmap & (1 << i)) == 0) break; - if(i == 16) + if (i == 16) return 0; free_vme_vec_bitmap |= 1 << i; - return (VME_SOURCE_BASE + i); + return VME_SOURCE_BASE + i; } void atari_unregister_vme_int(unsigned long irq) { - if(irq >= VME_SOURCE_BASE && irq < VME_SOURCE_BASE + VME_MAX_SOURCES) { + if (irq >= VME_SOURCE_BASE && irq < VME_SOURCE_BASE + VME_MAX_SOURCES) { irq -= VME_SOURCE_BASE; free_vme_vec_bitmap &= ~(1 << irq); } } -int show_atari_interrupts(struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i < NUM_INT_SOURCES; ++i) { - if (vectors[IRQ_SOURCE_TO_VECTOR(i)] == bad_interrupt) - continue; - if (i < STMFP_SOURCE_BASE) - seq_printf(p, "auto %2d: %10u ", - i, kstat_cpu(0).irqs[i]); - else - seq_printf(p, "vec $%02x: %10u ", - IRQ_SOURCE_TO_VECTOR(i), - kstat_cpu(0).irqs[i]); - - if (irq_handler[i].handler != atari_call_irq_list) { - seq_printf(p, "%s\n", irq_param[i].devname); - } - else { - irq_node_t *n; - for( n = (irq_node_t *)irq_handler[i].dev_id; n; n = n->next ) { - seq_printf(p, "%s\n", n->devname); - if (n->next) - seq_puts(p, " " ); - } - } - } - if (num_spurious) - seq_printf(p, "spurio.: %10u\n", num_spurious); - - return 0; -} - - diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c index 1012b08e5522..727289acad7e 100644 --- a/arch/m68k/atari/config.c +++ b/arch/m68k/atari/config.c @@ -57,12 +57,6 @@ static int atari_get_hardware_list(char *buffer); /* atari specific irq functions */ extern void atari_init_IRQ (void); -extern int atari_request_irq (unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id); -extern void atari_free_irq (unsigned int irq, void *dev_id); -extern void atari_enable_irq (unsigned int); -extern void atari_disable_irq (unsigned int); -extern int show_atari_interrupts (struct seq_file *, void *); extern void atari_mksound( unsigned int count, unsigned int ticks ); #ifdef CONFIG_HEARTBEAT static void atari_heartbeat( int on ); @@ -232,13 +226,8 @@ void __init config_atari(void) mach_sched_init = atari_sched_init; mach_init_IRQ = atari_init_IRQ; - mach_request_irq = atari_request_irq; - mach_free_irq = atari_free_irq; - enable_irq = atari_enable_irq; - disable_irq = atari_disable_irq; mach_get_model = atari_get_model; mach_get_hardware_list = atari_get_hardware_list; - mach_get_irq_list = show_atari_interrupts; mach_gettimeoffset = atari_gettimeoffset; mach_reset = atari_reset; mach_max_dma_address = 0xffffff; diff --git a/arch/m68k/bvme6000/Makefile b/arch/m68k/bvme6000/Makefile index 2348e6ceed1e..d8174004fe2f 100644 --- a/arch/m68k/bvme6000/Makefile +++ b/arch/m68k/bvme6000/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/bvme6000 source directory # -obj-y := config.o bvmeints.o rtc.o +obj-y := config.o rtc.o diff --git a/arch/m68k/bvme6000/bvmeints.c b/arch/m68k/bvme6000/bvmeints.c deleted file mode 100644 index 298a8df02664..000000000000 --- a/arch/m68k/bvme6000/bvmeints.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * arch/m68k/bvme6000/bvmeints.c - * - * Copyright (C) 1997 Richard Hirst [richard@sleepie.demon.co.uk] - * - * based on amiints.c -- Amiga Linux interrupt handling code - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/seq_file.h> - -#include <asm/ptrace.h> -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/traps.h> - -static irqreturn_t bvme6000_defhand (int irq, void *dev_id, struct pt_regs *fp); - -/* - * This should ideally be 4 elements only, for speed. - */ - -static struct { - irqreturn_t (*handler)(int, void *, struct pt_regs *); - unsigned long flags; - void *dev_id; - const char *devname; - unsigned count; -} irq_tab[256]; - -/* - * void bvme6000_init_IRQ (void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function is called during kernel startup to initialize - * the bvme6000 IRQ handling routines. - */ - -void bvme6000_init_IRQ (void) -{ - int i; - - for (i = 0; i < 256; i++) { - irq_tab[i].handler = bvme6000_defhand; - irq_tab[i].flags = IRQ_FLG_STD; - irq_tab[i].dev_id = NULL; - irq_tab[i].devname = NULL; - irq_tab[i].count = 0; - } -} - -int bvme6000_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } -#if 0 - /* Nothing special about auto-vectored devices for the BVME6000, - * but treat it specially to avoid changes elsewhere. - */ - - if (irq >= VEC_INT1 && irq <= VEC_INT7) - return cpu_request_irq(irq - VEC_SPUR, handler, flags, - devname, dev_id); -#endif - if (!(irq_tab[irq].flags & IRQ_FLG_STD)) { - if (irq_tab[irq].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_tab[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_tab[irq].devname); - return -EBUSY; - } - } - irq_tab[irq].handler = handler; - irq_tab[irq].flags = flags; - irq_tab[irq].dev_id = dev_id; - irq_tab[irq].devname = devname; - return 0; -} - -void bvme6000_free_irq(unsigned int irq, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } -#if 0 - if (irq >= VEC_INT1 && irq <= VEC_INT7) { - cpu_free_irq(irq - VEC_SPUR, dev_id); - return; - } -#endif - if (irq_tab[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_tab[irq].devname); - - irq_tab[irq].handler = bvme6000_defhand; - irq_tab[irq].flags = IRQ_FLG_STD; - irq_tab[irq].dev_id = NULL; - irq_tab[irq].devname = NULL; -} - -irqreturn_t bvme6000_process_int (unsigned long vec, struct pt_regs *fp) -{ - if (vec > 255) { - printk ("bvme6000_process_int: Illegal vector %ld", vec); - return IRQ_NONE; - } else { - irq_tab[vec].count++; - irq_tab[vec].handler(vec, irq_tab[vec].dev_id, fp); - return IRQ_HANDLED; - } -} - -int show_bvme6000_interrupts(struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i < 256; i++) { - if (irq_tab[i].count) - seq_printf(p, "Vec 0x%02x: %8d %s\n", - i, irq_tab[i].count, - irq_tab[i].devname ? irq_tab[i].devname : "free"); - } - return 0; -} - - -static irqreturn_t bvme6000_defhand (int irq, void *dev_id, struct pt_regs *fp) -{ - printk ("Unknown interrupt 0x%02x\n", irq); - return IRQ_NONE; -} - -void bvme6000_enable_irq (unsigned int irq) -{ -} - - -void bvme6000_disable_irq (unsigned int irq) -{ -} - diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c index c90cb5fcc8ef..d1e916ae55a8 100644 --- a/arch/m68k/bvme6000/config.c +++ b/arch/m68k/bvme6000/config.c @@ -36,15 +36,8 @@ #include <asm/machdep.h> #include <asm/bvme6000hw.h> -extern irqreturn_t bvme6000_process_int (int level, struct pt_regs *regs); -extern void bvme6000_init_IRQ (void); -extern void bvme6000_free_irq (unsigned int, void *); -extern int show_bvme6000_interrupts(struct seq_file *, void *); -extern void bvme6000_enable_irq (unsigned int); -extern void bvme6000_disable_irq (unsigned int); static void bvme6000_get_model(char *model); static int bvme6000_get_hardware_list(char *buffer); -extern int bvme6000_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); extern void bvme6000_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); extern unsigned long bvme6000_gettimeoffset (void); extern int bvme6000_hwclk (int, struct rtc_time *); @@ -100,6 +93,14 @@ static int bvme6000_get_hardware_list(char *buffer) return 0; } +/* + * This function is called during kernel startup to initialize + * the bvme6000 IRQ handling routines. + */ +static void bvme6000_init_IRQ(void) +{ + m68k_setup_user_interrupt(VEC_USER, 192, NULL); +} void __init config_bvme6000(void) { @@ -127,12 +128,6 @@ void __init config_bvme6000(void) mach_hwclk = bvme6000_hwclk; mach_set_clock_mmss = bvme6000_set_clock_mmss; mach_reset = bvme6000_reset; - mach_free_irq = bvme6000_free_irq; - mach_process_int = bvme6000_process_int; - mach_get_irq_list = show_bvme6000_interrupts; - mach_request_irq = bvme6000_request_irq; - enable_irq = bvme6000_enable_irq; - disable_irq = bvme6000_disable_irq; mach_get_model = bvme6000_get_model; mach_get_hardware_list = bvme6000_get_hardware_list; diff --git a/arch/m68k/hp300/Makefile b/arch/m68k/hp300/Makefile index 89b6317899e3..288b9c67c9bf 100644 --- a/arch/m68k/hp300/Makefile +++ b/arch/m68k/hp300/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/hp300 source directory # -obj-y := ksyms.o config.o ints.o time.o reboot.o +obj-y := ksyms.o config.o time.o reboot.o diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c index 6d129eef370f..2ef271cd818b 100644 --- a/arch/m68k/hp300/config.c +++ b/arch/m68k/hp300/config.c @@ -21,7 +21,6 @@ #include <asm/hp300hw.h> #include <asm/rtc.h> -#include "ints.h" #include "time.h" unsigned long hp300_model; @@ -64,8 +63,6 @@ static char *hp300_models[] __initdata = { static char hp300_model_name[13] = "HP9000/"; extern void hp300_reset(void); -extern irqreturn_t (*hp300_default_handler[])(int, void *, struct pt_regs *); -extern int show_hp300_interrupts(struct seq_file *, void *); #ifdef CONFIG_SERIAL_8250_CONSOLE extern int hp300_setup_serial_console(void) __init; #endif @@ -245,16 +242,16 @@ static unsigned int hp300_get_ss(void) hp300_rtc_read(RTC_REG_SEC2); } +static void __init hp300_init_IRQ(void) +{ +} + void __init config_hp300(void) { mach_sched_init = hp300_sched_init; mach_init_IRQ = hp300_init_IRQ; - mach_request_irq = hp300_request_irq; - mach_free_irq = hp300_free_irq; mach_get_model = hp300_get_model; - mach_get_irq_list = show_hp300_interrupts; mach_gettimeoffset = hp300_gettimeoffset; - mach_default_handler = &hp300_default_handler; mach_hwclk = hp300_hwclk; mach_get_ss = hp300_get_ss; mach_reset = hp300_reset; diff --git a/arch/m68k/hp300/ints.c b/arch/m68k/hp300/ints.c deleted file mode 100644 index 0c5bb403e893..000000000000 --- a/arch/m68k/hp300/ints.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * linux/arch/m68k/hp300/ints.c - * - * Copyright (C) 1998 Philip Blundell <philb@gnu.org> - * - * This file contains the HP300-specific interrupt handling. - * We only use the autovector interrupts, and therefore we need to - * maintain lists of devices sharing each ipl. - * [ipl list code added by Peter Maydell <pmaydell@chiark.greenend.org.uk> 06/1998] - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <asm/machdep.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/system.h> -#include <asm/traps.h> -#include <asm/ptrace.h> -#include <asm/errno.h> -#include "ints.h" - -/* Each ipl has a linked list of interrupt service routines. - * Service routines are added via hp300_request_irq() and removed - * via hp300_free_irq(). The device driver should set IRQ_FLG_FAST - * if it needs to be serviced early (eg FIFOless UARTs); this will - * cause it to be added at the front of the queue rather than - * the back. - * Currently IRQ_FLG_SLOW and flags=0 are treated identically; if - * we needed three levels of priority we could distinguish them - * but this strikes me as mildly ugly... - */ - -/* we start with no entries in any list */ -static irq_node_t *hp300_irq_list[HP300_NUM_IRQS]; - -static spinlock_t irqlist_lock; - -/* This handler receives all interrupts, dispatching them to the registered handlers */ -static irqreturn_t hp300_int_handler(int irq, void *dev_id, struct pt_regs *fp) -{ - irq_node_t *t; - /* We just give every handler on the chain an opportunity to handle - * the interrupt, in priority order. - */ - for(t = hp300_irq_list[irq]; t; t=t->next) - t->handler(irq, t->dev_id, fp); - /* We could put in some accounting routines, checks for stray interrupts, - * etc, in here. Note that currently we can't tell whether or not - * a handler handles the interrupt, though. - */ - return IRQ_HANDLED; -} - -static irqreturn_t hp300_badint(int irq, void *dev_id, struct pt_regs *fp) -{ - num_spurious += 1; - return IRQ_NONE; -} - -irqreturn_t (*hp300_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = { - [0] = hp300_badint, - [1] = hp300_int_handler, - [2] = hp300_int_handler, - [3] = hp300_int_handler, - [4] = hp300_int_handler, - [5] = hp300_int_handler, - [6] = hp300_int_handler, - [7] = hp300_int_handler -}; - -/* dev_id had better be unique to each handler because it's the only way we have - * to distinguish handlers when removing them... - * - * It would be pretty easy to support IRQ_FLG_LOCK (handler is not replacable) - * and IRQ_FLG_REPLACE (handler replaces existing one with this dev_id) - * if we wanted to. IRQ_FLG_FAST is needed for devices where interrupt latency - * matters (eg the dreaded FIFOless UART...) - */ -int hp300_request_irq(unsigned int irq, - irqreturn_t (*handler) (int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - irq_node_t *t, *n = new_irq_node(); - - if (!n) /* oops, no free nodes */ - return -ENOMEM; - - spin_lock_irqsave(&irqlist_lock, flags); - - if (!hp300_irq_list[irq]) { - /* no list yet */ - hp300_irq_list[irq] = n; - n->next = NULL; - } else if (flags & IRQ_FLG_FAST) { - /* insert at head of list */ - n->next = hp300_irq_list[irq]; - hp300_irq_list[irq] = n; - } else { - /* insert at end of list */ - for(t = hp300_irq_list[irq]; t->next; t = t->next) - /* do nothing */; - n->next = NULL; - t->next = n; - } - - /* Fill in n appropriately */ - n->handler = handler; - n->flags = flags; - n->dev_id = dev_id; - n->devname = devname; - spin_unlock_irqrestore(&irqlist_lock, flags); - return 0; -} - -void hp300_free_irq(unsigned int irq, void *dev_id) -{ - irq_node_t *t; - unsigned long flags; - - spin_lock_irqsave(&irqlist_lock, flags); - - t = hp300_irq_list[irq]; - if (!t) /* no handlers at all for that IRQ */ - { - printk(KERN_ERR "hp300_free_irq: attempt to remove nonexistent handler for IRQ %d\n", irq); - spin_unlock_irqrestore(&irqlist_lock, flags); - return; - } - - if (t->dev_id == dev_id) - { /* removing first handler on chain */ - t->flags = IRQ_FLG_STD; /* we probably don't really need these */ - t->dev_id = NULL; - t->devname = NULL; - t->handler = NULL; /* frees this irq_node_t */ - hp300_irq_list[irq] = t->next; - spin_unlock_irqrestore(&irqlist_lock, flags); - return; - } - - /* OK, must be removing from middle of the chain */ - - for (t = hp300_irq_list[irq]; t->next && t->next->dev_id != dev_id; t = t->next) - /* do nothing */; - if (!t->next) - { - printk(KERN_ERR "hp300_free_irq: attempt to remove nonexistent handler for IRQ %d\n", irq); - spin_unlock_irqrestore(&irqlist_lock, flags); - return; - } - /* remove the entry after t: */ - t->next->flags = IRQ_FLG_STD; - t->next->dev_id = NULL; - t->next->devname = NULL; - t->next->handler = NULL; - t->next = t->next->next; - - spin_unlock_irqrestore(&irqlist_lock, flags); -} - -int show_hp300_interrupts(struct seq_file *p, void *v) -{ - return 0; -} - -void __init hp300_init_IRQ(void) -{ - spin_lock_init(&irqlist_lock); -} diff --git a/arch/m68k/hp300/ints.h b/arch/m68k/hp300/ints.h deleted file mode 100644 index 8cfabe2f3840..000000000000 --- a/arch/m68k/hp300/ints.h +++ /dev/null @@ -1,9 +0,0 @@ -extern void hp300_init_IRQ(void); -extern void (*hp300_handlers[8])(int, void *, struct pt_regs *); -extern void hp300_free_irq(unsigned int irq, void *dev_id); -extern int hp300_request_irq(unsigned int irq, - irqreturn_t (*handler) (int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id); - -/* number of interrupts, includes 0 (what's that?) */ -#define HP300_NUM_IRQS 8 diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c index 8da5b1b31e61..7df05662b277 100644 --- a/arch/m68k/hp300/time.c +++ b/arch/m68k/hp300/time.c @@ -18,7 +18,6 @@ #include <asm/system.h> #include <asm/traps.h> #include <asm/blinken.h> -#include "ints.h" /* Clock hardware definitions */ @@ -71,7 +70,7 @@ void __init hp300_sched_init(irqreturn_t (*vector)(int, void *, struct pt_regs * asm volatile(" movpw %0,%1@(5)" : : "d" (INTVAL), "a" (CLOCKBASE)); - cpu_request_irq(6, hp300_tick, IRQ_FLG_STD, "timer tick", vector); + request_irq(IRQ_AUTO_6, hp300_tick, IRQ_FLG_STD, "timer tick", vector); out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */ out_8(CLOCKBASE + CLKCR1, 0x40); /* enable irq */ diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index 458925c471a1..dae609797dc0 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -9,8 +9,8 @@ else endif extra-y += vmlinux.lds -obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o \ - sys_m68k.o time.o semaphore.o setup.o m68k_ksyms.o +obj-y := entry.o process.o traps.o ints.o dma.o signal.o ptrace.o \ + sys_m68k.o time.o semaphore.o setup.o m68k_ksyms.o obj-$(CONFIG_PCI) += bios32.o obj-$(CONFIG_MODULES) += module.o diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c new file mode 100644 index 000000000000..fc449f8b2045 --- /dev/null +++ b/arch/m68k/kernel/dma.c @@ -0,0 +1,129 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#undef DEBUG + +#include <linux/dma-mapping.h> +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/vmalloc.h> + +#include <asm/pgalloc.h> +#include <asm/scatterlist.h> + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *handle, int flag) +{ + struct page *page, **map; + pgprot_t pgprot; + void *addr; + int i, order; + + pr_debug("dma_alloc_coherent: %d,%x\n", size, flag); + + size = PAGE_ALIGN(size); + order = get_order(size); + + page = alloc_pages(flag, order); + if (!page) + return NULL; + + *handle = page_to_phys(page); + map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA); + if (!map) { + __free_pages(page, order); + return NULL; + } + split_page(page, order); + + order = 1 << order; + size >>= PAGE_SHIFT; + map[0] = page; + for (i = 1; i < size; i++) + map[i] = page + i; + for (; i < order; i++) + __free_page(page + i); + pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); + if (CPU_IS_040_OR_060) + pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S; + else + pgprot_val(pgprot) |= _PAGE_NOCACHE030; + addr = vmap(map, size, flag, pgprot); + kfree(map); + + return addr; +} +EXPORT_SYMBOL(dma_alloc_coherent); + +void dma_free_coherent(struct device *dev, size_t size, + void *addr, dma_addr_t handle) +{ + pr_debug("dma_free_coherent: %p, %x\n", addr, handle); + vfree(addr); +} +EXPORT_SYMBOL(dma_free_coherent); + +inline void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size, + enum dma_data_direction dir) +{ + switch (dir) { + case DMA_TO_DEVICE: + cache_push(handle, size); + break; + case DMA_FROM_DEVICE: + cache_clear(handle, size); + break; + default: + if (printk_ratelimit()) + printk("dma_sync_single_for_device: unsupported dir %u\n", dir); + break; + } +} +EXPORT_SYMBOL(dma_sync_single_for_device); + +void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir) +{ + int i; + + for (i = 0; i < nents; sg++, i++) + dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); +} +EXPORT_SYMBOL(dma_sync_sg_for_device); + +dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = virt_to_bus(addr); + + dma_sync_single_for_device(dev, handle, size, dir); + return handle; +} +EXPORT_SYMBOL(dma_map_single); + +dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = page_to_phys(page) + offset; + + dma_sync_single_for_device(dev, handle, size, dir); + return handle; +} +EXPORT_SYMBOL(dma_map_page); + +int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir) +{ + int i; + + for (i = 0; i < nents; sg++, i++) { + sg->dma_address = page_to_phys(sg->page) + sg->offset; + dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); + } + return nents; +} +EXPORT_SYMBOL(dma_map_sg); diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 522079f8c2ba..449b62b30f45 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -45,9 +45,11 @@ #include <asm/asm-offsets.h> .globl system_call, buserr, trap, resume -.globl inthandler, sys_call_table +.globl sys_call_table .globl sys_fork, sys_clone, sys_vfork .globl ret_from_interrupt, bad_interrupt +.globl auto_irqhandler_fixup +.globl user_irqvec_fixup, user_irqhandler_fixup .text ENTRY(buserr) @@ -191,65 +193,29 @@ do_delayed_trace: jbra resume_userspace -#if 0 -#ifdef CONFIG_AMIGA -ami_inthandler: - addql #1,irq_stat+CPUSTAT_LOCAL_IRQ_COUNT - SAVE_ALL_INT - GET_CURRENT(%d0) - - bfextu %sp@(PT_VECTOR){#4,#12},%d0 - movel %d0,%a0 - addql #1,%a0@(kstat+STAT_IRQ-VECOFF(VEC_SPUR)) - movel %a0@(autoirq_list-VECOFF(VEC_SPUR)),%a0 - -| amiga vector int handler get the req mask instead of irq vector - lea CUSTOMBASE,%a1 - movew %a1@(C_INTREQR),%d0 - andw %a1@(C_INTENAR),%d0 - -| prepare stack (push frame pointer, dev_id & req mask) - pea %sp@ - movel %a0@(IRQ_DEVID),%sp@- - movel %d0,%sp@- - pea %pc@(ret_from_interrupt:w) - jbra @(IRQ_HANDLER,%a0)@(0) - -ENTRY(nmi_handler) - rte -#endif -#endif +/* This is the main interrupt handler for autovector interrupts */ -/* -** This is the main interrupt handler, responsible for calling process_int() -*/ -inthandler: +ENTRY(auto_inthandler) SAVE_ALL_INT GET_CURRENT(%d0) addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | put exception # in d0 - bfextu %sp@(PT_VECTOR){#4,#10},%d0 + bfextu %sp@(PT_VECTOR){#4,#10},%d0 + subw #VEC_SPUR,%d0 movel %sp,%sp@- movel %d0,%sp@- | put vector # on stack -#if defined(MACH_Q40_ONLY) && defined(CONFIG_BLK_DEV_FD) - btstb #4,0xff000000 | Q40 floppy needs very special treatment ... - jbeq 1f - btstb #3,0xff000004 - jbeq 1f - jbsr floppy_hardint - jbra 3f -1: -#endif - jbsr process_int | process the IRQ -3: addql #8,%sp | pop parameters off stack +auto_irqhandler_fixup = . + 2 + jsr m68k_handle_int | process the IRQ + addql #8,%sp | pop parameters off stack ret_from_interrupt: subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - jeq 1f -2: - RESTORE_ALL -1: + jeq ret_from_last_interrupt +2: RESTORE_ALL + + ALIGN +ret_from_last_interrupt: moveq #(~ALLOWINT>>8)&0xff,%d0 andb %sp@(PT_SR),%d0 jne 2b @@ -260,12 +226,42 @@ ret_from_interrupt: pea ret_from_exception jra do_softirq +/* Handler for user defined interrupt vectors */ + +ENTRY(user_inthandler) + SAVE_ALL_INT + GET_CURRENT(%d0) + addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + | put exception # in d0 + bfextu %sp@(PT_VECTOR){#4,#10},%d0 +user_irqvec_fixup = . + 2 + subw #VEC_USER,%d0 + + movel %sp,%sp@- + movel %d0,%sp@- | put vector # on stack +user_irqhandler_fixup = . + 2 + jsr m68k_handle_int | process the IRQ + addql #8,%sp | pop parameters off stack + + subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + jeq ret_from_last_interrupt + RESTORE_ALL /* Handler for uninitialized and spurious interrupts */ -bad_interrupt: - addql #1,num_spurious - rte +ENTRY(bad_inthandler) + SAVE_ALL_INT + GET_CURRENT(%d0) + addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + + movel %sp,%sp@- + jsr handle_badint + addql #4,%sp + + subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + jeq ret_from_last_interrupt + RESTORE_ALL + ENTRY(sys_fork) SAVE_SWITCH_STACK diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 4b85514792e7..5a8344b93547 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -39,47 +39,40 @@ #include <asm/traps.h> #include <asm/page.h> #include <asm/machdep.h> +#include <asm/cacheflush.h> #ifdef CONFIG_Q40 #include <asm/q40ints.h> #endif +extern u32 auto_irqhandler_fixup[]; +extern u32 user_irqhandler_fixup[]; +extern u16 user_irqvec_fixup[]; + /* table for system interrupt handlers */ -static irq_handler_t irq_list[SYS_IRQS]; - -static const char *default_names[SYS_IRQS] = { - [0] = "spurious int", - [1] = "int1 handler", - [2] = "int2 handler", - [3] = "int3 handler", - [4] = "int4 handler", - [5] = "int5 handler", - [6] = "int6 handler", - [7] = "int7 handler" +static struct irq_node *irq_list[NR_IRQS]; +static struct irq_controller *irq_controller[NR_IRQS]; +static int irq_depth[NR_IRQS]; + +static int m68k_first_user_vec; + +static struct irq_controller auto_irq_controller = { + .name = "auto", + .lock = SPIN_LOCK_UNLOCKED, + .startup = m68k_irq_startup, + .shutdown = m68k_irq_shutdown, }; -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; +static struct irq_controller user_irq_controller = { + .name = "user", + .lock = SPIN_LOCK_UNLOCKED, + .startup = m68k_irq_startup, + .shutdown = m68k_irq_shutdown, +}; #define NUM_IRQ_NODES 100 static irq_node_t nodes[NUM_IRQ_NODES]; -static void dummy_enable_irq(unsigned int irq); -static void dummy_disable_irq(unsigned int irq); -static int dummy_request_irq(unsigned int irq, - irqreturn_t (*handler) (int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id); -static void dummy_free_irq(unsigned int irq, void *dev_id); - -void (*enable_irq) (unsigned int) = dummy_enable_irq; -void (*disable_irq) (unsigned int) = dummy_disable_irq; - -int (*mach_request_irq) (unsigned int, irqreturn_t (*)(int, void *, struct pt_regs *), - unsigned long, const char *, void *) = dummy_request_irq; -void (*mach_free_irq) (unsigned int, void *) = dummy_free_irq; - -void init_irq_proc(void); - /* * void init_IRQ(void) * @@ -101,18 +94,70 @@ void __init init_IRQ(void) hardirq_mask_is_broken(); } - for (i = 0; i < SYS_IRQS; i++) { - if (mach_default_handler) - irq_list[i].handler = (*mach_default_handler)[i]; - irq_list[i].flags = 0; - irq_list[i].dev_id = NULL; - irq_list[i].devname = default_names[i]; - } + for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++) + irq_controller[i] = &auto_irq_controller; + + mach_init_IRQ(); +} + +/** + * m68k_setup_auto_interrupt + * @handler: called from auto vector interrupts + * + * setup the handler to be called from auto vector interrupts instead of the + * standard m68k_handle_int(), it will be called with irq numbers in the range + * from IRQ_AUTO_1 - IRQ_AUTO_7. + */ +void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *)) +{ + if (handler) + *auto_irqhandler_fixup = (u32)handler; + flush_icache(); +} - for (i = 0; i < NUM_IRQ_NODES; i++) - nodes[i].handler = NULL; +/** + * m68k_setup_user_interrupt + * @vec: first user vector interrupt to handle + * @cnt: number of active user vector interrupts + * @handler: called from user vector interrupts + * + * setup user vector interrupts, this includes activating the specified range + * of interrupts, only then these interrupts can be requested (note: this is + * different from auto vector interrupts). An optional handler can be installed + * to be called instead of the default m68k_handle_int(), it will be called + * with irq numbers starting from IRQ_USER. + */ +void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, + void (*handler)(unsigned int, struct pt_regs *)) +{ + int i; + + m68k_first_user_vec = vec; + for (i = 0; i < cnt; i++) + irq_controller[IRQ_USER + i] = &user_irq_controller; + *user_irqvec_fixup = vec - IRQ_USER; + if (handler) + *user_irqhandler_fixup = (u32)handler; + flush_icache(); +} + +/** + * m68k_setup_irq_controller + * @contr: irq controller which controls specified irq + * @irq: first irq to be managed by the controller + * + * Change the controller for the specified range of irq, which will be used to + * manage these irq. auto/user irq already have a default controller, which can + * be changed as well, but the controller probably should use m68k_irq_startup/ + * m68k_irq_shutdown. + */ +void m68k_setup_irq_controller(struct irq_controller *contr, unsigned int irq, + unsigned int cnt) +{ + int i; - mach_init_IRQ (); + for (i = 0; i < cnt; i++) + irq_controller[irq + i] = contr; } irq_node_t *new_irq_node(void) @@ -120,84 +165,183 @@ irq_node_t *new_irq_node(void) irq_node_t *node; short i; - for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) - if (!node->handler) + for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) { + if (!node->handler) { + memset(node, 0, sizeof(*node)); return node; + } + } printk ("new_irq_node: out of nodes\n"); return NULL; } -/* - * We will keep these functions until I have convinced Linus to move - * the declaration of them from include/linux/sched.h to - * include/asm/irq.h. - */ +int setup_irq(unsigned int irq, struct irq_node *node) +{ + struct irq_controller *contr; + struct irq_node **prev; + unsigned long flags; + + if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + printk("%s: Incorrect IRQ %d from %s\n", + __FUNCTION__, irq, node->devname); + return -ENXIO; + } + + spin_lock_irqsave(&contr->lock, flags); + + prev = irq_list + irq; + if (*prev) { + /* Can't share interrupts unless both agree to */ + if (!((*prev)->flags & node->flags & SA_SHIRQ)) { + spin_unlock_irqrestore(&contr->lock, flags); + return -EBUSY; + } + while (*prev) + prev = &(*prev)->next; + } + + if (!irq_list[irq]) { + if (contr->startup) + contr->startup(irq); + else + contr->enable(irq); + } + node->next = NULL; + *prev = node; + + spin_unlock_irqrestore(&contr->lock, flags); + + return 0; +} + int request_irq(unsigned int irq, irqreturn_t (*handler) (int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id) { - return mach_request_irq(irq, handler, flags, devname, dev_id); + struct irq_node *node; + int res; + + node = new_irq_node(); + if (!node) + return -ENOMEM; + + node->handler = handler; + node->flags = flags; + node->dev_id = dev_id; + node->devname = devname; + + res = setup_irq(irq, node); + if (res) + node->handler = NULL; + + return res; } EXPORT_SYMBOL(request_irq); void free_irq(unsigned int irq, void *dev_id) { - mach_free_irq(irq, dev_id); + struct irq_controller *contr; + struct irq_node **p, *node; + unsigned long flags; + + if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); + return; + } + + spin_lock_irqsave(&contr->lock, flags); + + p = irq_list + irq; + while ((node = *p)) { + if (node->dev_id == dev_id) + break; + p = &node->next; + } + + if (node) { + *p = node->next; + node->handler = NULL; + } else + printk("%s: Removing probably wrong IRQ %d\n", + __FUNCTION__, irq); + + if (!irq_list[irq]) { + if (contr->shutdown) + contr->shutdown(irq); + else + contr->disable(irq); + } + + spin_unlock_irqrestore(&contr->lock, flags); } EXPORT_SYMBOL(free_irq); -int cpu_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) +void enable_irq(unsigned int irq) { - if (irq < IRQ1 || irq > IRQ7) { - printk("%s: Incorrect IRQ %d from %s\n", - __FUNCTION__, irq, devname); - return -ENXIO; - } + struct irq_controller *contr; + unsigned long flags; -#if 0 - if (!(irq_list[irq].flags & IRQ_FLG_STD)) { - if (irq_list[irq].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_list[irq].devname); - return -EBUSY; - } - if (!(flags & IRQ_FLG_REPLACE)) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_list[irq].devname); - return -EBUSY; - } + if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + printk("%s: Incorrect IRQ %d\n", + __FUNCTION__, irq); + return; } -#endif - irq_list[irq].handler = handler; - irq_list[irq].flags = flags; - irq_list[irq].dev_id = dev_id; - irq_list[irq].devname = devname; - return 0; + spin_lock_irqsave(&contr->lock, flags); + if (irq_depth[irq]) { + if (!--irq_depth[irq]) { + if (contr->enable) + contr->enable(irq); + } + } else + WARN_ON(1); + spin_unlock_irqrestore(&contr->lock, flags); } -void cpu_free_irq(unsigned int irq, void *dev_id) +EXPORT_SYMBOL(enable_irq); + +void disable_irq(unsigned int irq) { - if (irq < IRQ1 || irq > IRQ7) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); + struct irq_controller *contr; + unsigned long flags; + + if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + printk("%s: Incorrect IRQ %d\n", + __FUNCTION__, irq); return; } - if (irq_list[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_list[irq].devname); + spin_lock_irqsave(&contr->lock, flags); + if (!irq_depth[irq]++) { + if (contr->disable) + contr->disable(irq); + } + spin_unlock_irqrestore(&contr->lock, flags); +} - irq_list[irq].handler = (*mach_default_handler)[irq]; - irq_list[irq].flags = 0; - irq_list[irq].dev_id = NULL; - irq_list[irq].devname = default_names[irq]; +EXPORT_SYMBOL(disable_irq); + +int m68k_irq_startup(unsigned int irq) +{ + if (irq <= IRQ_AUTO_7) + vectors[VEC_SPUR + irq] = auto_inthandler; + else + vectors[m68k_first_user_vec + irq - IRQ_USER] = user_inthandler; + return 0; } +void m68k_irq_shutdown(unsigned int irq) +{ + if (irq <= IRQ_AUTO_7) + vectors[VEC_SPUR + irq] = bad_inthandler; + else + vectors[m68k_first_user_vec + irq - IRQ_USER] = bad_inthandler; +} + + /* * Do we need these probe functions on the m68k? * @@ -225,58 +369,50 @@ int probe_irq_off (unsigned long irqs) EXPORT_SYMBOL(probe_irq_off); -static void dummy_enable_irq(unsigned int irq) -{ - printk("calling uninitialized enable_irq()\n"); -} - -static void dummy_disable_irq(unsigned int irq) +unsigned int irq_canonicalize(unsigned int irq) { - printk("calling uninitialized disable_irq()\n"); +#ifdef CONFIG_Q40 + if (MACH_IS_Q40 && irq == 11) + irq = 10; +#endif + return irq; } -static int dummy_request_irq(unsigned int irq, - irqreturn_t (*handler) (int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - printk("calling uninitialized request_irq()\n"); - return 0; -} +EXPORT_SYMBOL(irq_canonicalize); -static void dummy_free_irq(unsigned int irq, void *dev_id) +asmlinkage void m68k_handle_int(unsigned int irq, struct pt_regs *regs) { - printk("calling uninitialized disable_irq()\n"); + struct irq_node *node; + + kstat_cpu(0).irqs[irq]++; + node = irq_list[irq]; + do { + node->handler(irq, node->dev_id, regs); + node = node->next; + } while (node); } -asmlinkage void process_int(unsigned long vec, struct pt_regs *fp) +asmlinkage void handle_badint(struct pt_regs *regs) { - if (vec >= VEC_INT1 && vec <= VEC_INT7 && !MACH_IS_BVME6000) { - vec -= VEC_SPUR; - kstat_cpu(0).irqs[vec]++; - irq_list[vec].handler(vec, irq_list[vec].dev_id, fp); - } else { - if (mach_process_int) - mach_process_int(vec, fp); - else - panic("Can't process interrupt vector %ld\n", vec); - return; - } + kstat_cpu(0).irqs[0]++; + printk("unexpected interrupt from %u\n", regs->vector); } int show_interrupts(struct seq_file *p, void *v) { + struct irq_controller *contr; + struct irq_node *node; int i = *(loff_t *) v; /* autovector interrupts */ - if (i < SYS_IRQS) { - if (mach_default_handler) { - seq_printf(p, "auto %2d: %10u ", i, - i ? kstat_cpu(0).irqs[i] : num_spurious); - seq_puts(p, " "); - seq_printf(p, "%s\n", irq_list[i].devname); - } - } else if (i == SYS_IRQS) - mach_get_irq_list(p, v); + if (irq_list[i]) { + contr = irq_controller[i]; + node = irq_list[i]; + seq_printf(p, "%-8s %3u: %10u %s", contr->name, i, kstat_cpu(0).irqs[i], node->devname); + while ((node = node->next)) + seq_printf(p, ", %s", node->devname); + seq_puts(p, "\n"); + } return 0; } diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c index 5b7952ea2bae..1f5e1b5aeda4 100644 --- a/arch/m68k/kernel/m68k_ksyms.c +++ b/arch/m68k/kernel/m68k_ksyms.c @@ -57,8 +57,6 @@ EXPORT_SYMBOL(dump_thread); EXPORT_SYMBOL(strnlen); EXPORT_SYMBOL(strrchr); EXPORT_SYMBOL(strstr); -EXPORT_SYMBOL(enable_irq); -EXPORT_SYMBOL(disable_irq); EXPORT_SYMBOL(kernel_thread); #ifdef CONFIG_VME EXPORT_SYMBOL(vme_brdtype); diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c index 750d5b3c971f..214a95f9f3ac 100644 --- a/arch/m68k/kernel/setup.c +++ b/arch/m68k/kernel/setup.c @@ -68,11 +68,8 @@ char m68k_debug_device[6] = ""; void (*mach_sched_init) (irqreturn_t (*handler)(int, void *, struct pt_regs *)) __initdata = NULL; /* machine dependent irq functions */ void (*mach_init_IRQ) (void) __initdata = NULL; -irqreturn_t (*(*mach_default_handler)[]) (int, void *, struct pt_regs *); void (*mach_get_model) (char *model); int (*mach_get_hardware_list) (char *buffer); -int (*mach_get_irq_list) (struct seq_file *, void *); -irqreturn_t (*mach_process_int) (int, struct pt_regs *); /* machine dependent timer functions */ unsigned long (*mach_gettimeoffset) (void); int (*mach_hwclk) (int, struct rtc_time*); diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index 837a88709902..e86de7b061cd 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -45,7 +45,6 @@ asmlinkage void system_call(void); asmlinkage void buserr(void); asmlinkage void trap(void); -asmlinkage void inthandler(void); asmlinkage void nmihandler(void); #ifdef CONFIG_M68KFPU_EMU asmlinkage void fpu_emu(void); @@ -53,51 +52,7 @@ asmlinkage void fpu_emu(void); e_vector vectors[256] = { [VEC_BUSERR] = buserr, - [VEC_ADDRERR] = trap, - [VEC_ILLEGAL] = trap, - [VEC_ZERODIV] = trap, - [VEC_CHK] = trap, - [VEC_TRAP] = trap, - [VEC_PRIV] = trap, - [VEC_TRACE] = trap, - [VEC_LINE10] = trap, - [VEC_LINE11] = trap, - [VEC_RESV12] = trap, - [VEC_COPROC] = trap, - [VEC_FORMAT] = trap, - [VEC_UNINT] = trap, - [VEC_RESV16] = trap, - [VEC_RESV17] = trap, - [VEC_RESV18] = trap, - [VEC_RESV19] = trap, - [VEC_RESV20] = trap, - [VEC_RESV21] = trap, - [VEC_RESV22] = trap, - [VEC_RESV23] = trap, - [VEC_SPUR] = inthandler, - [VEC_INT1] = inthandler, - [VEC_INT2] = inthandler, - [VEC_INT3] = inthandler, - [VEC_INT4] = inthandler, - [VEC_INT5] = inthandler, - [VEC_INT6] = inthandler, - [VEC_INT7] = inthandler, [VEC_SYS] = system_call, - [VEC_TRAP1] = trap, - [VEC_TRAP2] = trap, - [VEC_TRAP3] = trap, - [VEC_TRAP4] = trap, - [VEC_TRAP5] = trap, - [VEC_TRAP6] = trap, - [VEC_TRAP7] = trap, - [VEC_TRAP8] = trap, - [VEC_TRAP9] = trap, - [VEC_TRAP10] = trap, - [VEC_TRAP11] = trap, - [VEC_TRAP12] = trap, - [VEC_TRAP13] = trap, - [VEC_TRAP14] = trap, - [VEC_TRAP15] = trap, }; /* nmi handler for the Amiga */ @@ -132,12 +87,15 @@ void __init trap_init (void) { int i; - for (i = 48; i < 64; i++) + for (i = VEC_SPUR; i <= VEC_INT7; i++) + vectors[i] = bad_inthandler; + + for (i = 0; i < VEC_USER; i++) if (!vectors[i]) vectors[i] = trap; - for (i = 64; i < 256; i++) - vectors[i] = inthandler; + for (i = VEC_USER; i < 256; i++) + vectors[i] = bad_inthandler; #ifdef CONFIG_M68KFPU_EMU if (FPU_IS_EMU) @@ -927,66 +885,88 @@ void show_trace(unsigned long *stack) void show_registers(struct pt_regs *regs) { struct frame *fp = (struct frame *)regs; + mm_segment_t old_fs = get_fs(); + u16 c, *cp; unsigned long addr; int i; + print_modules(); + printk("PC: [<%08lx>]",regs->pc); + print_symbol(" %s", regs->pc); + printk("\nSR: %04x SP: %p a2: %08lx\n", + regs->sr, regs, regs->a2); + printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", + regs->d0, regs->d1, regs->d2, regs->d3); + printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + regs->d4, regs->d5, regs->a0, regs->a1); + + printk("Process %s (pid: %d, task=%p)\n", + current->comm, current->pid, current); addr = (unsigned long)&fp->un; - printk("Frame format=%X ", fp->ptregs.format); - switch (fp->ptregs.format) { + printk("Frame format=%X ", regs->format); + switch (regs->format) { case 0x2: - printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); - addr += sizeof(fp->un.fmt2); - break; + printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); + addr += sizeof(fp->un.fmt2); + break; case 0x3: - printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); - addr += sizeof(fp->un.fmt3); - break; + printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); + addr += sizeof(fp->un.fmt3); + break; case 0x4: - printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" - : "eff addr=%08lx pc=%08lx\n"), - fp->un.fmt4.effaddr, fp->un.fmt4.pc); - addr += sizeof(fp->un.fmt4); - break; + printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" + : "eff addr=%08lx pc=%08lx\n"), + fp->un.fmt4.effaddr, fp->un.fmt4.pc); + addr += sizeof(fp->un.fmt4); + break; case 0x7: - printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", - fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); - printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); - printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); - printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); - printk("push data: %08lx %08lx %08lx %08lx\n", - fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, - fp->un.fmt7.pd3); - addr += sizeof(fp->un.fmt7); - break; + printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", + fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); + printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); + printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); + printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); + printk("push data: %08lx %08lx %08lx %08lx\n", + fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, + fp->un.fmt7.pd3); + addr += sizeof(fp->un.fmt7); + break; case 0x9: - printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); - addr += sizeof(fp->un.fmt9); - break; + printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); + addr += sizeof(fp->un.fmt9); + break; case 0xa: - printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", - fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, - fp->un.fmta.daddr, fp->un.fmta.dobuf); - addr += sizeof(fp->un.fmta); - break; + printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", + fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, + fp->un.fmta.daddr, fp->un.fmta.dobuf); + addr += sizeof(fp->un.fmta); + break; case 0xb: - printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", - fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, - fp->un.fmtb.daddr, fp->un.fmtb.dobuf); - printk("baddr=%08lx dibuf=%08lx ver=%x\n", - fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); - addr += sizeof(fp->un.fmtb); - break; + printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", + fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, + fp->un.fmtb.daddr, fp->un.fmtb.dobuf); + printk("baddr=%08lx dibuf=%08lx ver=%x\n", + fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); + addr += sizeof(fp->un.fmtb); + break; default: - printk("\n"); + printk("\n"); } show_stack(NULL, (unsigned long *)addr); - printk("Code: "); - for (i = 0; i < 10; i++) - printk("%04x ", 0xffff & ((short *) fp->ptregs.pc)[i]); + printk("Code:"); + set_fs(KERNEL_DS); + cp = (u16 *)regs->pc; + for (i = -8; i < 16; i++) { + if (get_user(c, cp + i) && i >= 0) { + printk(" Bad PC value."); + break; + } + printk(i ? " %04x" : " <%04x>", c); + } + set_fs(old_fs); printk ("\n"); } @@ -1190,19 +1170,7 @@ void die_if_kernel (char *str, struct pt_regs *fp, int nr) console_verbose(); printk("%s: %08x\n",str,nr); - print_modules(); - printk("PC: [<%08lx>]",fp->pc); - print_symbol(" %s\n", fp->pc); - printk("\nSR: %04x SP: %p a2: %08lx\n", - fp->sr, fp, fp->a2); - printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - fp->d0, fp->d1, fp->d2, fp->d3); - printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - fp->d4, fp->d5, fp->a0, fp->a1); - - printk("Process %s (pid: %d, stackpage=%08lx)\n", - current->comm, current->pid, PAGE_SIZE+(unsigned long)current); - show_stack(NULL, (unsigned long *)fp); + show_registers(fp); do_exit(SIGSEGV); } diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index b19b7dd9bd21..6eaa881793d1 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -81,7 +81,7 @@ irqreturn_t baboon_irq(int irq, void *dev_id, struct pt_regs *regs) for (i = 0, irq_bit = 1 ; i < 3 ; i++, irq_bit <<= 1) { if (events & irq_bit/* & baboon_active*/) { baboon_active &= ~irq_bit; - mac_do_irq_list(IRQ_BABOON_0 + i, regs); + m68k_handle_int(IRQ_BABOON_0 + i, regs); baboon_active |= irq_bit; baboon->mb_ifr &= ~irq_bit; } diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 19dce75711b1..5a9990e436bb 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -94,20 +94,6 @@ static void mac_sched_init(irqreturn_t (*vector)(int, void *, struct pt_regs *)) via_init_clock(vector); } -extern irqreturn_t mac_default_handler(int, void *, struct pt_regs *); - -irqreturn_t (*mac_handlers[8])(int, void *, struct pt_regs *)= -{ - mac_default_handler, - mac_default_handler, - mac_default_handler, - mac_default_handler, - mac_default_handler, - mac_default_handler, - mac_default_handler, - mac_default_handler -}; - /* * Parse a Macintosh-specific record in the bootinfo */ @@ -183,13 +169,7 @@ void __init config_mac(void) mach_sched_init = mac_sched_init; mach_init_IRQ = mac_init_IRQ; - mach_request_irq = mac_request_irq; - mach_free_irq = mac_free_irq; - enable_irq = mac_enable_irq; - disable_irq = mac_disable_irq; mach_get_model = mac_get_model; - mach_default_handler = &mac_handlers; - mach_get_irq_list = show_mac_interrupts; mach_gettimeoffset = mac_gettimeoffset; #warning move to adb/via init #if 0 diff --git a/arch/m68k/mac/iop.c b/arch/m68k/mac/iop.c index 9179a3798407..4c8ece7e64a3 100644 --- a/arch/m68k/mac/iop.c +++ b/arch/m68k/mac/iop.c @@ -317,7 +317,7 @@ void __init iop_register_interrupts(void) { if (iop_ism_present) { if (oss_present) { - cpu_request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq, + request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq, IRQ_FLG_LOCK, "ISM IOP", (void *) IOP_NUM_ISM); oss_irq_enable(IRQ_MAC_ADB); diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index 7a1600bd195d..694b14bb0de1 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -137,14 +137,6 @@ #define DEBUG_SPURIOUS #define SHUTUP_SONIC -/* - * The mac_irq_list array is an array of linked lists of irq_node_t nodes. - * Each node contains one handler to be called whenever the interrupt - * occurs, with fast handlers listed before slow handlers. - */ - -irq_node_t *mac_irq_list[NUM_MAC_SOURCES]; - /* SCC interrupt mask */ static int scc_mask; @@ -209,8 +201,8 @@ extern int baboon_irq_pending(int); * SCC interrupt routines */ -static void scc_irq_enable(int); -static void scc_irq_disable(int); +static void scc_irq_enable(unsigned int); +static void scc_irq_disable(unsigned int); /* * console_loglevel determines NMI handler function @@ -221,21 +213,25 @@ irqreturn_t mac_debug_handler(int, void *, struct pt_regs *); /* #define DEBUG_MACINTS */ +static void mac_enable_irq(unsigned int irq); +static void mac_disable_irq(unsigned int irq); + +static struct irq_controller mac_irq_controller = { + .name = "mac", + .lock = SPIN_LOCK_UNLOCKED, + .enable = mac_enable_irq, + .disable = mac_disable_irq, +}; + void mac_init_IRQ(void) { - int i; - #ifdef DEBUG_MACINTS printk("mac_init_IRQ(): Setting things up...\n"); #endif - /* Initialize the IRQ handler lists. Initially each list is empty, */ - - for (i = 0; i < NUM_MAC_SOURCES; i++) { - mac_irq_list[i] = NULL; - } - scc_mask = 0; + m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER, + NUM_MAC_SOURCES - IRQ_USER); /* Make sure the SONIC interrupt is cleared or things get ugly */ #ifdef SHUTUP_SONIC printk("Killing onboard sonic... "); @@ -252,15 +248,16 @@ void mac_init_IRQ(void) * at levels 1-7. Most of the work is done elsewhere. */ - if (oss_present) { + if (oss_present) oss_register_interrupts(); - } else { + else via_register_interrupts(); - } - if (psc_present) psc_register_interrupts(); - if (baboon_present) baboon_register_interrupts(); + if (psc_present) + psc_register_interrupts(); + if (baboon_present) + baboon_register_interrupts(); iop_register_interrupts(); - cpu_request_irq(7, mac_nmi_handler, IRQ_FLG_LOCK, "NMI", + request_irq(IRQ_AUTO_7, mac_nmi_handler, 0, "NMI", mac_nmi_handler); #ifdef DEBUG_MACINTS printk("mac_init_IRQ(): Done!\n"); @@ -268,104 +265,6 @@ void mac_init_IRQ(void) } /* - * Routines to work with irq_node_t's on linked lists lifted from - * the Amiga code written by Roman Zippel. - */ - -static inline void mac_insert_irq(irq_node_t **list, irq_node_t *node) -{ - unsigned long flags; - irq_node_t *cur; - - if (!node->dev_id) - printk("%s: Warning: dev_id of %s is zero\n", - __FUNCTION__, node->devname); - - local_irq_save(flags); - - cur = *list; - - if (node->flags & IRQ_FLG_FAST) { - node->flags &= ~IRQ_FLG_SLOW; - while (cur && cur->flags & IRQ_FLG_FAST) { - list = &cur->next; - cur = cur->next; - } - } else if (node->flags & IRQ_FLG_SLOW) { - while (cur) { - list = &cur->next; - cur = cur->next; - } - } else { - while (cur && !(cur->flags & IRQ_FLG_SLOW)) { - list = &cur->next; - cur = cur->next; - } - } - - node->next = cur; - *list = node; - - local_irq_restore(flags); -} - -static inline void mac_delete_irq(irq_node_t **list, void *dev_id) -{ - unsigned long flags; - irq_node_t *node; - - local_irq_save(flags); - - for (node = *list; node; list = &node->next, node = *list) { - if (node->dev_id == dev_id) { - *list = node->next; - /* Mark it as free. */ - node->handler = NULL; - local_irq_restore(flags); - return; - } - } - local_irq_restore(flags); - printk ("%s: tried to remove invalid irq\n", __FUNCTION__); -} - -/* - * Call all the handlers for a given interrupt. Fast handlers are called - * first followed by slow handlers. - * - * This code taken from the original Amiga code written by Roman Zippel. - */ - -void mac_do_irq_list(int irq, struct pt_regs *fp) -{ - irq_node_t *node, *slow_nodes; - unsigned long flags; - - kstat_cpu(0).irqs[irq]++; - -#ifdef DEBUG_SPURIOUS - if (!mac_irq_list[irq] && (console_loglevel > 7)) { - printk("mac_do_irq_list: spurious interrupt %d!\n", irq); - return; - } -#endif - - /* serve first fast and normal handlers */ - for (node = mac_irq_list[irq]; - node && (!(node->flags & IRQ_FLG_SLOW)); - node = node->next) - node->handler(irq, node->dev_id, fp); - if (!node) return; - local_save_flags(flags); - local_irq_restore((flags & ~0x0700) | (fp->sr & 0x0700)); - /* if slow handlers exists, serve them now */ - slow_nodes = node; - for (; node; node = node->next) { - node->handler(irq, node->dev_id, fp); - } -} - -/* * mac_enable_irq - enable an interrupt source * mac_disable_irq - disable an interrupt source * mac_clear_irq - clears a pending interrupt @@ -374,276 +273,124 @@ void mac_do_irq_list(int irq, struct pt_regs *fp) * These routines are just dispatchers to the VIA/OSS/PSC routines. */ -void mac_enable_irq (unsigned int irq) +static void mac_enable_irq(unsigned int irq) { - int irq_src = IRQ_SRC(irq); + int irq_src = IRQ_SRC(irq); switch(irq_src) { - case 1: via_irq_enable(irq); - break; - case 2: - case 7: if (oss_present) { - oss_irq_enable(irq); - } else { - via_irq_enable(irq); - } - break; - case 3: - case 4: - case 5: - case 6: if (psc_present) { - psc_irq_enable(irq); - } else if (oss_present) { - oss_irq_enable(irq); - } else if (irq_src == 4) { - scc_irq_enable(irq); - } - break; - case 8: if (baboon_present) { - baboon_irq_enable(irq); - } - break; + case 1: + via_irq_enable(irq); + break; + case 2: + case 7: + if (oss_present) + oss_irq_enable(irq); + else + via_irq_enable(irq); + break; + case 3: + case 4: + case 5: + case 6: + if (psc_present) + psc_irq_enable(irq); + else if (oss_present) + oss_irq_enable(irq); + else if (irq_src == 4) + scc_irq_enable(irq); + break; + case 8: + if (baboon_present) + baboon_irq_enable(irq); + break; } } -void mac_disable_irq (unsigned int irq) +static void mac_disable_irq(unsigned int irq) { - int irq_src = IRQ_SRC(irq); + int irq_src = IRQ_SRC(irq); switch(irq_src) { - case 1: via_irq_disable(irq); - break; - case 2: - case 7: if (oss_present) { - oss_irq_disable(irq); - } else { - via_irq_disable(irq); - } - break; - case 3: - case 4: - case 5: - case 6: if (psc_present) { - psc_irq_disable(irq); - } else if (oss_present) { - oss_irq_disable(irq); - } else if (irq_src == 4) { - scc_irq_disable(irq); - } - break; - case 8: if (baboon_present) { - baboon_irq_disable(irq); - } - break; + case 1: + via_irq_disable(irq); + break; + case 2: + case 7: + if (oss_present) + oss_irq_disable(irq); + else + via_irq_disable(irq); + break; + case 3: + case 4: + case 5: + case 6: + if (psc_present) + psc_irq_disable(irq); + else if (oss_present) + oss_irq_disable(irq); + else if (irq_src == 4) + scc_irq_disable(irq); + break; + case 8: + if (baboon_present) + baboon_irq_disable(irq); + break; } } -void mac_clear_irq( unsigned int irq ) +void mac_clear_irq(unsigned int irq) { switch(IRQ_SRC(irq)) { - case 1: via_irq_clear(irq); - break; - case 2: - case 7: if (oss_present) { - oss_irq_clear(irq); - } else { - via_irq_clear(irq); - } - break; - case 3: - case 4: - case 5: - case 6: if (psc_present) { - psc_irq_clear(irq); - } else if (oss_present) { - oss_irq_clear(irq); - } - break; - case 8: if (baboon_present) { - baboon_irq_clear(irq); - } - break; + case 1: + via_irq_clear(irq); + break; + case 2: + case 7: + if (oss_present) + oss_irq_clear(irq); + else + via_irq_clear(irq); + break; + case 3: + case 4: + case 5: + case 6: + if (psc_present) + psc_irq_clear(irq); + else if (oss_present) + oss_irq_clear(irq); + break; + case 8: + if (baboon_present) + baboon_irq_clear(irq); + break; } } -int mac_irq_pending( unsigned int irq ) +int mac_irq_pending(unsigned int irq) { switch(IRQ_SRC(irq)) { - case 1: return via_irq_pending(irq); - case 2: - case 7: if (oss_present) { - return oss_irq_pending(irq); - } else { - return via_irq_pending(irq); - } - case 3: - case 4: - case 5: - case 6: if (psc_present) { - return psc_irq_pending(irq); - } else if (oss_present) { - return oss_irq_pending(irq); - } - } - return 0; -} - -/* - * Add an interrupt service routine to an interrupt source. - * Returns 0 on success. - * - * FIXME: You can register interrupts on nonexistent source (ie PSC4 on a - * non-PSC machine). We should return -EINVAL in those cases. - */ - -int mac_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - irq_node_t *node; - -#ifdef DEBUG_MACINTS - printk ("%s: irq %d requested for %s\n", __FUNCTION__, irq, devname); -#endif - - if (irq < VIA1_SOURCE_BASE) { - return cpu_request_irq(irq, handler, flags, devname, dev_id); + case 1: + return via_irq_pending(irq); + case 2: + case 7: + if (oss_present) + return oss_irq_pending(irq); + else + return via_irq_pending(irq); + case 3: + case 4: + case 5: + case 6: + if (psc_present) + return psc_irq_pending(irq); + else if (oss_present) + return oss_irq_pending(irq); } - - if (irq >= NUM_MAC_SOURCES) { - printk ("%s: unknown irq %d requested by %s\n", - __FUNCTION__, irq, devname); - } - - /* Get a node and stick it onto the right list */ - - if (!(node = new_irq_node())) return -ENOMEM; - - node->handler = handler; - node->flags = flags; - node->dev_id = dev_id; - node->devname = devname; - node->next = NULL; - mac_insert_irq(&mac_irq_list[irq], node); - - /* Now enable the IRQ source */ - - mac_enable_irq(irq); - return 0; } -/* - * Removes an interrupt service routine from an interrupt source. - */ - -void mac_free_irq(unsigned int irq, void *dev_id) -{ -#ifdef DEBUG_MACINTS - printk ("%s: irq %d freed by %p\n", __FUNCTION__, irq, dev_id); -#endif - - if (irq < VIA1_SOURCE_BASE) { - cpu_free_irq(irq, dev_id); - return; - } - - if (irq >= NUM_MAC_SOURCES) { - printk ("%s: unknown irq %d freed\n", - __FUNCTION__, irq); - return; - } - - mac_delete_irq(&mac_irq_list[irq], dev_id); - - /* If the list for this interrupt is */ - /* empty then disable the source. */ - - if (!mac_irq_list[irq]) { - mac_disable_irq(irq); - } -} - -/* - * Generate a pretty listing for /proc/interrupts - * - * By the time we're called the autovector interrupt list has already been - * generated, so we just need to do the machspec interrupts. - * - * 990506 (jmt) - rewritten to handle chained machspec interrupt handlers. - * Also removed display of num_spurious it is already - * displayed for us as autovector irq 0. - */ - -int show_mac_interrupts(struct seq_file *p, void *v) -{ - int i; - irq_node_t *node; - char *base; - - /* Don't do Nubus interrupts in this loop; we do them separately */ - /* below so that we can print slot numbers instead of IRQ numbers */ - - for (i = VIA1_SOURCE_BASE ; i < NUM_MAC_SOURCES ; ++i) { - - /* Nonexistant interrupt or nothing registered; skip it. */ - - if ((node = mac_irq_list[i]) == NULL) continue; - if (node->flags & IRQ_FLG_STD) continue; - - base = ""; - switch(IRQ_SRC(i)) { - case 1: base = "via1"; - break; - case 2: if (oss_present) { - base = "oss"; - } else { - base = "via2"; - } - break; - case 3: - case 4: - case 5: - case 6: if (psc_present) { - base = "psc"; - } else if (oss_present) { - base = "oss"; - } else { - if (IRQ_SRC(i) == 4) base = "scc"; - } - break; - case 7: base = "nbus"; - break; - case 8: base = "bbn"; - break; - } - seq_printf(p, "%4s %2d: %10u ", base, i, kstat_cpu(0).irqs[i]); - - do { - if (node->flags & IRQ_FLG_FAST) { - seq_puts(p, "F "); - } else if (node->flags & IRQ_FLG_SLOW) { - seq_puts(p, "S "); - } else { - seq_puts(p, " "); - } - seq_printf(p, "%s\n", node->devname); - if ((node = node->next)) { - seq_puts(p, " "); - } - } while(node); - - } - return 0; -} - -void mac_default_handler(int irq, void *dev_id, struct pt_regs *regs) -{ -#ifdef DEBUG_SPURIOUS - printk("Unexpected IRQ %d on device %p\n", irq, dev_id); -#endif -} - static int num_debug[8]; irqreturn_t mac_debug_handler(int irq, void *dev_id, struct pt_regs *regs) @@ -683,7 +430,7 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp) while (nmi_hold == 1) udelay(1000); - if ( console_loglevel >= 8 ) { + if (console_loglevel >= 8) { #if 0 show_state(); printk("PC: %08lx\nSR: %04x SP: %p\n", fp->pc, fp->sr, fp); @@ -712,14 +459,16 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp) * done in hardware (only the PSC can do that.) */ -static void scc_irq_enable(int irq) { - int irq_idx = IRQ_IDX(irq); +static void scc_irq_enable(unsigned int irq) +{ + int irq_idx = IRQ_IDX(irq); scc_mask |= (1 << irq_idx); } -static void scc_irq_disable(int irq) { - int irq_idx = IRQ_IDX(irq); +static void scc_irq_disable(unsigned int irq) +{ + int irq_idx = IRQ_IDX(irq); scc_mask &= ~(1 << irq_idx); } @@ -754,6 +503,8 @@ void mac_scc_dispatch(int irq, void *dev_id, struct pt_regs *regs) /* and since they're autovector interrupts they */ /* pretty much kill the system. */ - if (reg & 0x38) mac_do_irq_list(IRQ_SCCA, regs); - if (reg & 0x07) mac_do_irq_list(IRQ_SCCB, regs); + if (reg & 0x38) + m68k_handle_int(IRQ_SCCA, regs); + if (reg & 0x07) + m68k_handle_int(IRQ_SCCB, regs); } diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index 333547692724..63e04365191f 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -67,15 +67,15 @@ void __init oss_init(void) void __init oss_register_interrupts(void) { - cpu_request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK, + request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK, "scsi", (void *) oss); - cpu_request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK, + request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK, "scc", mac_scc_dispatch); - cpu_request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK, + request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK, "nubus", (void *) oss); - cpu_request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK, + request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK, "sound", (void *) oss); - cpu_request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK, + request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK, "via1", (void *) via1); } @@ -113,7 +113,7 @@ irqreturn_t oss_irq(int irq, void *dev_id, struct pt_regs *regs) oss->irq_pending &= ~OSS_IP_SOUND; } else if (events & OSS_IP_SCSI) { oss->irq_level[OSS_SCSI] = OSS_IRQLEV_DISABLED; - mac_do_irq_list(IRQ_MAC_SCSI, regs); + m68k_handle_int(IRQ_MAC_SCSI, regs); oss->irq_pending &= ~OSS_IP_SCSI; oss->irq_level[OSS_SCSI] = OSS_IRQLEV_SCSI; } else { @@ -146,7 +146,7 @@ irqreturn_t oss_nubus_irq(int irq, void *dev_id, struct pt_regs *regs) for (i = 0, irq_bit = 1 ; i < 6 ; i++, irq_bit <<= 1) { if (events & irq_bit) { oss->irq_level[i] = OSS_IRQLEV_DISABLED; - mac_do_irq_list(NUBUS_SOURCE_BASE + i, regs); + m68k_handle_int(NUBUS_SOURCE_BASE + i, regs); oss->irq_pending &= ~irq_bit; oss->irq_level[i] = OSS_IRQLEV_NUBUS; } diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index e72384e43a1e..e26218091755 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -117,10 +117,10 @@ void __init psc_init(void) void __init psc_register_interrupts(void) { - cpu_request_irq(3, psc_irq, IRQ_FLG_LOCK, "psc3", (void *) 0x30); - cpu_request_irq(4, psc_irq, IRQ_FLG_LOCK, "psc4", (void *) 0x40); - cpu_request_irq(5, psc_irq, IRQ_FLG_LOCK, "psc5", (void *) 0x50); - cpu_request_irq(6, psc_irq, IRQ_FLG_LOCK, "psc6", (void *) 0x60); + request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30); + request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40); + request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50); + request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60); } /* @@ -149,7 +149,7 @@ irqreturn_t psc_irq(int irq, void *dev_id, struct pt_regs *regs) for (i = 0, irq_bit = 1 ; i < 4 ; i++, irq_bit <<= 1) { if (events & irq_bit) { psc_write_byte(pIER, irq_bit); - mac_do_irq_list(base_irq + i, regs); + m68k_handle_int(base_irq + i, regs); psc_write_byte(pIFR, irq_bit); psc_write_byte(pIER, irq_bit | 0x80); } diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index a6e3814c8666..c4aa345d544e 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -253,21 +253,21 @@ void __init via_init_clock(irqreturn_t (*func)(int, void *, struct pt_regs *)) void __init via_register_interrupts(void) { if (via_alt_mapping) { - cpu_request_irq(IRQ_AUTO_1, via1_irq, + request_irq(IRQ_AUTO_1, via1_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, "software", (void *) via1); - cpu_request_irq(IRQ_AUTO_6, via1_irq, + request_irq(IRQ_AUTO_6, via1_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1", (void *) via1); } else { - cpu_request_irq(IRQ_AUTO_1, via1_irq, + request_irq(IRQ_AUTO_1, via1_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1", (void *) via1); } - cpu_request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, + request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, "via2", (void *) via2); if (!psc_present) { - cpu_request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK, + request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK, "scc", mac_scc_dispatch); } request_irq(IRQ_MAC_NUBUS, via_nubus_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, @@ -424,7 +424,7 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs) for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) if (events & irq_bit) { via1[vIER] = irq_bit; - mac_do_irq_list(VIA1_SOURCE_BASE + i, regs); + m68k_handle_int(VIA1_SOURCE_BASE + i, regs); via1[vIFR] = irq_bit; via1[vIER] = irq_bit | 0x80; } @@ -439,7 +439,7 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs) /* No, it won't be set. that's why we're doing this. */ via_irq_disable(IRQ_MAC_NUBUS); via_irq_clear(IRQ_MAC_NUBUS); - mac_do_irq_list(IRQ_MAC_NUBUS, regs); + m68k_handle_int(IRQ_MAC_NUBUS, regs); via_irq_enable(IRQ_MAC_NUBUS); } #endif @@ -459,7 +459,7 @@ irqreturn_t via2_irq(int irq, void *dev_id, struct pt_regs *regs) if (events & irq_bit) { via2[gIER] = irq_bit; via2[gIFR] = irq_bit | rbv_clear; - mac_do_irq_list(VIA2_SOURCE_BASE + i, regs); + m68k_handle_int(VIA2_SOURCE_BASE + i, regs); via2[gIER] = irq_bit | 0x80; } return IRQ_HANDLED; @@ -481,7 +481,7 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id, struct pt_regs *regs) for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) { if (events & irq_bit) { via_irq_disable(NUBUS_SOURCE_BASE + i); - mac_do_irq_list(NUBUS_SOURCE_BASE + i, regs); + m68k_handle_int(NUBUS_SOURCE_BASE + i, regs); via_irq_enable(NUBUS_SOURCE_BASE + i); } } diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 85ad19a0ac79..43ffab048724 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -259,13 +259,15 @@ void __iounmap(void *addr, unsigned long size) if (CPU_IS_020_OR_030) { int pmd_off = (virtaddr/PTRTREESIZE) & 15; + int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; - if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { + if (pmd_type == _PAGE_PRESENT) { pmd_dir->pmd[pmd_off] = 0; virtaddr += PTRTREESIZE; size -= PTRTREESIZE; continue; - } + } else if (pmd_type == 0) + continue; } if (pmd_bad(*pmd_dir)) { diff --git a/arch/m68k/mvme147/147ints.c b/arch/m68k/mvme147/147ints.c deleted file mode 100644 index 69a744ee35a3..000000000000 --- a/arch/m68k/mvme147/147ints.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * arch/m68k/mvme147/147ints.c - * - * Copyright (C) 1997 Richard Hirst [richard@sleepie.demon.co.uk] - * - * based on amiints.c -- Amiga Linux interrupt handling code - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/seq_file.h> - -#include <asm/ptrace.h> -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/traps.h> - -static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp); - -/* - * This should ideally be 4 elements only, for speed. - */ - -static struct { - irqreturn_t (*handler)(int, void *, struct pt_regs *); - unsigned long flags; - void *dev_id; - const char *devname; - unsigned count; -} irq_tab[256]; - -/* - * void mvme147_init_IRQ (void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function is called during kernel startup to initialize - * the mvme147 IRQ handling routines. - */ - -void mvme147_init_IRQ (void) -{ - int i; - - for (i = 0; i < 256; i++) { - irq_tab[i].handler = mvme147_defhand; - irq_tab[i].flags = IRQ_FLG_STD; - irq_tab[i].dev_id = NULL; - irq_tab[i].devname = NULL; - irq_tab[i].count = 0; - } -} - -int mvme147_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - if (!(irq_tab[irq].flags & IRQ_FLG_STD)) { - if (irq_tab[irq].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_tab[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_tab[irq].devname); - return -EBUSY; - } - } - irq_tab[irq].handler = handler; - irq_tab[irq].flags = flags; - irq_tab[irq].dev_id = dev_id; - irq_tab[irq].devname = devname; - return 0; -} - -void mvme147_free_irq(unsigned int irq, void *dev_id) -{ - if (irq > 255) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - if (irq_tab[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_tab[irq].devname); - - irq_tab[irq].handler = mvme147_defhand; - irq_tab[irq].flags = IRQ_FLG_STD; - irq_tab[irq].dev_id = NULL; - irq_tab[irq].devname = NULL; -} - -irqreturn_t mvme147_process_int (unsigned long vec, struct pt_regs *fp) -{ - if (vec > 255) { - printk ("mvme147_process_int: Illegal vector %ld\n", vec); - return IRQ_NONE; - } else { - irq_tab[vec].count++; - irq_tab[vec].handler(vec, irq_tab[vec].dev_id, fp); - return IRQ_HANDLED; - } -} - -int show_mvme147_interrupts (struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i < 256; i++) { - if (irq_tab[i].count) - seq_printf(p, "Vec 0x%02x: %8d %s\n", - i, irq_tab[i].count, - irq_tab[i].devname ? irq_tab[i].devname : "free"); - } - return 0; -} - - -static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp) -{ - printk ("Unknown interrupt 0x%02x\n", irq); - return IRQ_NONE; -} - -void mvme147_enable_irq (unsigned int irq) -{ -} - - -void mvme147_disable_irq (unsigned int irq) -{ -} - diff --git a/arch/m68k/mvme147/Makefile b/arch/m68k/mvme147/Makefile index f0153ed3efa5..a36d38dbfbbc 100644 --- a/arch/m68k/mvme147/Makefile +++ b/arch/m68k/mvme147/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/mvme147 source directory # -obj-y := config.o 147ints.o +obj-y := config.o diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index 0fcf9720c2fe..0cd0e5bddcee 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -36,15 +36,8 @@ #include <asm/mvme147hw.h> -extern irqreturn_t mvme147_process_int (int level, struct pt_regs *regs); -extern void mvme147_init_IRQ (void); -extern void mvme147_free_irq (unsigned int, void *); -extern int show_mvme147_interrupts (struct seq_file *, void *); -extern void mvme147_enable_irq (unsigned int); -extern void mvme147_disable_irq (unsigned int); static void mvme147_get_model(char *model); static int mvme147_get_hardware_list(char *buffer); -extern int mvme147_request_irq (unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); extern void mvme147_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); extern unsigned long mvme147_gettimeoffset (void); extern int mvme147_hwclk (int, struct rtc_time *); @@ -91,6 +84,15 @@ static int mvme147_get_hardware_list(char *buffer) return 0; } +/* + * This function is called during kernel startup to initialize + * the mvme147 IRQ handling routines. + */ + +void mvme147_init_IRQ(void) +{ + m68k_setup_user_interrupt(VEC_USER, 192, NULL); +} void __init config_mvme147(void) { @@ -101,12 +103,6 @@ void __init config_mvme147(void) mach_hwclk = mvme147_hwclk; mach_set_clock_mmss = mvme147_set_clock_mmss; mach_reset = mvme147_reset; - mach_free_irq = mvme147_free_irq; - mach_process_int = mvme147_process_int; - mach_get_irq_list = show_mvme147_interrupts; - mach_request_irq = mvme147_request_irq; - enable_irq = mvme147_enable_irq; - disable_irq = mvme147_disable_irq; mach_get_model = mvme147_get_model; mach_get_hardware_list = mvme147_get_hardware_list; diff --git a/arch/m68k/mvme16x/16xints.c b/arch/m68k/mvme16x/16xints.c deleted file mode 100644 index 793ef735b59c..000000000000 --- a/arch/m68k/mvme16x/16xints.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * arch/m68k/mvme16x/16xints.c - * - * Copyright (C) 1995 Richard Hirst [richard@sleepie.demon.co.uk] - * - * based on amiints.c -- Amiga Linux interrupt handling code - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/seq_file.h> - -#include <asm/system.h> -#include <asm/ptrace.h> -#include <asm/irq.h> - -static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp); - -/* - * This should ideally be 4 elements only, for speed. - */ - -static struct { - irqreturn_t (*handler)(int, void *, struct pt_regs *); - unsigned long flags; - void *dev_id; - const char *devname; - unsigned count; -} irq_tab[192]; - -/* - * void mvme16x_init_IRQ (void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function is called during kernel startup to initialize - * the mvme16x IRQ handling routines. Should probably ensure - * that the base vectors for the VMEChip2 and PCCChip2 are valid. - */ - -void mvme16x_init_IRQ (void) -{ - int i; - - for (i = 0; i < 192; i++) { - irq_tab[i].handler = mvme16x_defhand; - irq_tab[i].flags = IRQ_FLG_STD; - irq_tab[i].dev_id = NULL; - irq_tab[i].devname = NULL; - irq_tab[i].count = 0; - } -} - -int mvme16x_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq < 64 || irq > 255) { - printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - - if (!(irq_tab[irq-64].flags & IRQ_FLG_STD)) { - if (irq_tab[irq-64].flags & IRQ_FLG_LOCK) { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_tab[irq-64].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk("%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_tab[irq-64].devname); - return -EBUSY; - } - } - irq_tab[irq-64].handler = handler; - irq_tab[irq-64].flags = flags; - irq_tab[irq-64].dev_id = dev_id; - irq_tab[irq-64].devname = devname; - return 0; -} - -void mvme16x_free_irq(unsigned int irq, void *dev_id) -{ - if (irq < 64 || irq > 255) { - printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (irq_tab[irq-64].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_tab[irq-64].devname); - - irq_tab[irq-64].handler = mvme16x_defhand; - irq_tab[irq-64].flags = IRQ_FLG_STD; - irq_tab[irq-64].dev_id = NULL; - irq_tab[irq-64].devname = NULL; -} - -irqreturn_t mvme16x_process_int (unsigned long vec, struct pt_regs *fp) -{ - if (vec < 64 || vec > 255) { - printk ("mvme16x_process_int: Illegal vector %ld", vec); - return IRQ_NONE; - } else { - irq_tab[vec-64].count++; - irq_tab[vec-64].handler(vec, irq_tab[vec-64].dev_id, fp); - return IRQ_HANDLED; - } -} - -int show_mvme16x_interrupts (struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i < 192; i++) { - if (irq_tab[i].count) - seq_printf(p, "Vec 0x%02x: %8d %s\n", - i+64, irq_tab[i].count, - irq_tab[i].devname ? irq_tab[i].devname : "free"); - } - return 0; -} - - -static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp) -{ - printk ("Unknown interrupt 0x%02x\n", irq); - return IRQ_NONE; -} - - -void mvme16x_enable_irq (unsigned int irq) -{ -} - - -void mvme16x_disable_irq (unsigned int irq) -{ -} - - diff --git a/arch/m68k/mvme16x/Makefile b/arch/m68k/mvme16x/Makefile index 5129f56b64a3..950e82f21640 100644 --- a/arch/m68k/mvme16x/Makefile +++ b/arch/m68k/mvme16x/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/mvme16x source directory # -obj-y := config.o 16xints.o rtc.o mvme16x_ksyms.o +obj-y := config.o rtc.o mvme16x_ksyms.o diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c index 26ce81c1337d..ce2727ed1bc0 100644 --- a/arch/m68k/mvme16x/config.c +++ b/arch/m68k/mvme16x/config.c @@ -40,15 +40,8 @@ extern t_bdid mvme_bdid; static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE; -extern irqreturn_t mvme16x_process_int (int level, struct pt_regs *regs); -extern void mvme16x_init_IRQ (void); -extern void mvme16x_free_irq (unsigned int, void *); -extern int show_mvme16x_interrupts (struct seq_file *, void *); -extern void mvme16x_enable_irq (unsigned int); -extern void mvme16x_disable_irq (unsigned int); static void mvme16x_get_model(char *model); static int mvme16x_get_hardware_list(char *buffer); -extern int mvme16x_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); extern void mvme16x_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); extern unsigned long mvme16x_gettimeoffset (void); extern int mvme16x_hwclk (int, struct rtc_time *); @@ -120,6 +113,16 @@ static int mvme16x_get_hardware_list(char *buffer) return (len); } +/* + * This function is called during kernel startup to initialize + * the mvme16x IRQ handling routines. Should probably ensure + * that the base vectors for the VMEChip2 and PCCChip2 are valid. + */ + +static void mvme16x_init_IRQ (void) +{ + m68k_setup_user_interrupt(VEC_USER, 192, NULL); +} #define pcc2chip ((volatile u_char *)0xfff42000) #define PccSCCMICR 0x1d @@ -138,12 +141,6 @@ void __init config_mvme16x(void) mach_hwclk = mvme16x_hwclk; mach_set_clock_mmss = mvme16x_set_clock_mmss; mach_reset = mvme16x_reset; - mach_free_irq = mvme16x_free_irq; - mach_process_int = mvme16x_process_int; - mach_get_irq_list = show_mvme16x_interrupts; - mach_request_irq = mvme16x_request_irq; - enable_irq = mvme16x_enable_irq; - disable_irq = mvme16x_disable_irq; mach_get_model = mvme16x_get_model; mach_get_hardware_list = mvme16x_get_hardware_list; diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c index 5e0f9b04d45e..efa52d302d67 100644 --- a/arch/m68k/q40/config.c +++ b/arch/m68k/q40/config.c @@ -37,15 +37,9 @@ #include <asm/q40_master.h> extern irqreturn_t q40_process_int (int level, struct pt_regs *regs); -extern irqreturn_t (*q40_default_handler[]) (int, void *, struct pt_regs *); /* added just for debugging */ extern void q40_init_IRQ (void); -extern void q40_free_irq (unsigned int, void *); -extern int show_q40_interrupts (struct seq_file *, void *); -extern void q40_enable_irq (unsigned int); -extern void q40_disable_irq (unsigned int); static void q40_get_model(char *model); static int q40_get_hardware_list(char *buffer); -extern int q40_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); extern void q40_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); extern unsigned long q40_gettimeoffset (void); @@ -175,13 +169,6 @@ void __init config_q40(void) mach_set_clock_mmss = q40_set_clock_mmss; mach_reset = q40_reset; - mach_free_irq = q40_free_irq; - mach_process_int = q40_process_int; - mach_get_irq_list = show_q40_interrupts; - mach_request_irq = q40_request_irq; - enable_irq = q40_enable_irq; - disable_irq = q40_disable_irq; - mach_default_handler = &q40_default_handler; mach_get_model = q40_get_model; mach_get_hardware_list = q40_get_hardware_list; diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index f8ecc2664fe6..472f41c4158b 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -14,13 +14,8 @@ #include <linux/types.h> #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/seq_file.h> #include <linux/interrupt.h> -#include <linux/hardirq.h> -#include <asm/rtc.h> #include <asm/ptrace.h> #include <asm/system.h> #include <asm/irq.h> @@ -39,29 +34,37 @@ * */ -extern int ints_inited; +static void q40_irq_handler(unsigned int, struct pt_regs *fp); +static void q40_enable_irq(unsigned int); +static void q40_disable_irq(unsigned int); +unsigned short q40_ablecount[35]; +unsigned short q40_state[35]; -irqreturn_t q40_irq2_handler (int, void *, struct pt_regs *fp); - - -static irqreturn_t q40_defhand (int irq, void *dev_id, struct pt_regs *fp); -static irqreturn_t default_handler(int lev, void *dev_id, struct pt_regs *regs); - - -#define DEVNAME_SIZE 24 +static int q40_irq_startup(unsigned int irq) +{ + /* test for ISA ints not implemented by HW */ + switch (irq) { + case 1: case 2: case 8: case 9: + case 11: case 12: case 13: + printk("%s: ISA IRQ %d not implemented by HW\n", __FUNCTION__, irq); + return -ENXIO; + } + return 0; +} -static struct q40_irq_node { - irqreturn_t (*handler)(int, void *, struct pt_regs *); - unsigned long flags; - void *dev_id; - /* struct q40_irq_node *next;*/ - char devname[DEVNAME_SIZE]; - unsigned count; - unsigned short state; -} irq_tab[Q40_IRQ_MAX+1]; +static void q40_irq_shutdown(unsigned int irq) +{ +} -short unsigned q40_ablecount[Q40_IRQ_MAX+1]; +static struct irq_controller q40_irq_controller = { + .name = "q40", + .lock = SPIN_LOCK_UNLOCKED, + .startup = q40_irq_startup, + .shutdown = q40_irq_shutdown, + .enable = q40_enable_irq, + .disable = q40_disable_irq, +}; /* * void q40_init_IRQ (void) @@ -74,139 +77,29 @@ short unsigned q40_ablecount[Q40_IRQ_MAX+1]; * the q40 IRQ handling routines. */ -static int disabled=0; +static int disabled; -void q40_init_IRQ (void) +void q40_init_IRQ(void) { - int i; - - disabled=0; - for (i = 0; i <= Q40_IRQ_MAX; i++) { - irq_tab[i].handler = q40_defhand; - irq_tab[i].flags = 0; - irq_tab[i].dev_id = NULL; - /* irq_tab[i].next = NULL;*/ - irq_tab[i].devname[0] = 0; - irq_tab[i].count = 0; - irq_tab[i].state =0; - q40_ablecount[i]=0; /* all enabled */ - } + m68k_setup_irq_controller(&q40_irq_controller, 1, Q40_IRQ_MAX); /* setup handler for ISA ints */ - cpu_request_irq(IRQ2, q40_irq2_handler, 0, "q40 ISA and master chip", - NULL); + m68k_setup_auto_interrupt(q40_irq_handler); + + m68k_irq_startup(IRQ_AUTO_2); + m68k_irq_startup(IRQ_AUTO_4); /* now enable some ints.. */ - master_outb(1,EXT_ENABLE_REG); /* ISA IRQ 5-15 */ + master_outb(1, EXT_ENABLE_REG); /* ISA IRQ 5-15 */ /* make sure keyboard IRQ is disabled */ - master_outb(0,KEY_IRQ_ENABLE_REG); + master_outb(0, KEY_IRQ_ENABLE_REG); } -int q40_request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - /*printk("q40_request_irq %d, %s\n",irq,devname);*/ - - if (irq > Q40_IRQ_MAX || (irq>15 && irq<32)) { - printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - - /* test for ISA ints not implemented by HW */ - switch (irq) - { - case 1: case 2: case 8: case 9: - case 12: case 13: - printk("%s: ISA IRQ %d from %s not implemented by HW\n", __FUNCTION__, irq, devname); - return -ENXIO; - case 11: - printk("warning IRQ 10 and 11 not distinguishable\n"); - irq=10; - default: - ; - } - - if (irq<Q40_IRQ_SAMPLE) - { - if (irq_tab[irq].dev_id != NULL) - { - printk("%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_tab[irq].devname); - return -EBUSY; - } - /*printk("IRQ %d set to handler %p\n",irq,handler);*/ - if (dev_id==NULL) - { - printk("WARNING: dev_id == NULL in request_irq\n"); - dev_id=(void*)1; - } - irq_tab[irq].handler = handler; - irq_tab[irq].flags = flags; - irq_tab[irq].dev_id = dev_id; - strlcpy(irq_tab[irq].devname,devname,sizeof(irq_tab[irq].devname)); - irq_tab[irq].state = 0; - return 0; - } - else { - /* Q40_IRQ_SAMPLE :somewhat special actions required here ..*/ - cpu_request_irq(4, handler, flags, devname, dev_id); - cpu_request_irq(6, handler, flags, devname, dev_id); - return 0; - } -} - -void q40_free_irq(unsigned int irq, void *dev_id) -{ - if (irq > Q40_IRQ_MAX || (irq>15 && irq<32)) { - printk("%s: Incorrect IRQ %d, dev_id %x \n", __FUNCTION__, irq, (unsigned)dev_id); - return; - } - - /* test for ISA ints not implemented by HW */ - switch (irq) - { - case 1: case 2: case 8: case 9: - case 12: case 13: - printk("%s: ISA IRQ %d from %x invalid\n", __FUNCTION__, irq, (unsigned)dev_id); - return; - case 11: irq=10; - default: - ; - } - - if (irq<Q40_IRQ_SAMPLE) - { - if (irq_tab[irq].dev_id != dev_id) - printk("%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_tab[irq].devname); - - irq_tab[irq].handler = q40_defhand; - irq_tab[irq].flags = 0; - irq_tab[irq].dev_id = NULL; - /* irq_tab[irq].devname = NULL; */ - /* do not reset state !! */ - } - else - { /* == Q40_IRQ_SAMPLE */ - cpu_free_irq(4, dev_id); - cpu_free_irq(6, dev_id); - } -} - - -irqreturn_t q40_process_int (int level, struct pt_regs *fp) -{ - printk("unexpected interrupt vec=%x, pc=%lx, d0=%lx, d0_orig=%lx, d1=%lx, d2=%lx\n", - level, fp->pc, fp->d0, fp->orig_d0, fp->d1, fp->d2); - printk("\tIIRQ_REG = %x, EIRQ_REG = %x\n",master_inb(IIRQ_REG),master_inb(EIRQ_REG)); - return IRQ_HANDLED; -} /* * this stuff doesn't really belong here.. -*/ + */ int ql_ticks; /* 200Hz ticks since last jiffie */ static int sound_ticks; @@ -215,54 +108,53 @@ static int sound_ticks; void q40_mksound(unsigned int hz, unsigned int ticks) { - /* for now ignore hz, except that hz==0 switches off sound */ - /* simply alternate the ampl (128-SVOL)-(128+SVOL)-..-.. at 200Hz */ - if (hz==0) - { - if (sound_ticks) - sound_ticks=1; - - *DAC_LEFT=128; - *DAC_RIGHT=128; - - return; - } - /* sound itself is done in q40_timer_int */ - if (sound_ticks == 0) sound_ticks=1000; /* pretty long beep */ - sound_ticks=ticks<<1; + /* for now ignore hz, except that hz==0 switches off sound */ + /* simply alternate the ampl (128-SVOL)-(128+SVOL)-..-.. at 200Hz */ + if (hz == 0) { + if (sound_ticks) + sound_ticks = 1; + + *DAC_LEFT = 128; + *DAC_RIGHT = 128; + + return; + } + /* sound itself is done in q40_timer_int */ + if (sound_ticks == 0) + sound_ticks = 1000; /* pretty long beep */ + sound_ticks = ticks << 1; } static irqreturn_t (*q40_timer_routine)(int, void *, struct pt_regs *); static irqreturn_t q40_timer_int (int irq, void * dev, struct pt_regs * regs) { - ql_ticks = ql_ticks ? 0 : 1; - if (sound_ticks) - { - unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL; - sound_ticks--; - *DAC_LEFT=sval; - *DAC_RIGHT=sval; - } - - if (!ql_ticks) - q40_timer_routine(irq, dev, regs); - return IRQ_HANDLED; + ql_ticks = ql_ticks ? 0 : 1; + if (sound_ticks) { + unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL; + sound_ticks--; + *DAC_LEFT=sval; + *DAC_RIGHT=sval; + } + + if (!ql_ticks) + q40_timer_routine(irq, dev, regs); + return IRQ_HANDLED; } void q40_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) { - int timer_irq; + int timer_irq; - q40_timer_routine = timer_routine; - timer_irq=Q40_IRQ_FRAME; + q40_timer_routine = timer_routine; + timer_irq = Q40_IRQ_FRAME; - if (request_irq(timer_irq, q40_timer_int, 0, + if (request_irq(timer_irq, q40_timer_int, 0, "timer", q40_timer_int)) - panic ("Couldn't register timer int"); + panic("Couldn't register timer int"); - master_outb(-1,FRAME_CLEAR_REG); - master_outb( 1,FRAME_RATE_REG); + master_outb(-1, FRAME_CLEAR_REG); + master_outb( 1, FRAME_RATE_REG); } @@ -308,169 +200,132 @@ static int mext_disabled=0; /* ext irq disabled by master chip? */ static int aliased_irq=0; /* how many times inside handler ?*/ -/* got level 2 interrupt, dispatch to ISA or keyboard/timer IRQs */ -irqreturn_t q40_irq2_handler (int vec, void *devname, struct pt_regs *fp) +/* got interrupt, dispatch to ISA or keyboard/timer IRQs */ +static void q40_irq_handler(unsigned int irq, struct pt_regs *fp) { - unsigned mir, mer; - int irq,i; + unsigned mir, mer; + int i; //repeat: - mir=master_inb(IIRQ_REG); - if (mir&Q40_IRQ_FRAME_MASK) { - irq_tab[Q40_IRQ_FRAME].count++; - irq_tab[Q40_IRQ_FRAME].handler(Q40_IRQ_FRAME,irq_tab[Q40_IRQ_FRAME].dev_id,fp); - master_outb(-1,FRAME_CLEAR_REG); - } - if ((mir&Q40_IRQ_SER_MASK) || (mir&Q40_IRQ_EXT_MASK)) { - mer=master_inb(EIRQ_REG); - for (i=0; eirqs[i].mask; i++) { - if (mer&(eirqs[i].mask)) { - irq=eirqs[i].irq; + mir = master_inb(IIRQ_REG); +#ifdef CONFIG_BLK_DEV_FD + if ((mir & Q40_IRQ_EXT_MASK) && + (master_inb(EIRQ_REG) & Q40_IRQ6_MASK)) { + floppy_hardint(); + return; + } +#endif + switch (irq) { + case 4: + case 6: + m68k_handle_int(Q40_IRQ_SAMPLE, fp); + return; + } + if (mir & Q40_IRQ_FRAME_MASK) { + m68k_handle_int(Q40_IRQ_FRAME, fp); + master_outb(-1, FRAME_CLEAR_REG); + } + if ((mir & Q40_IRQ_SER_MASK) || (mir & Q40_IRQ_EXT_MASK)) { + mer = master_inb(EIRQ_REG); + for (i = 0; eirqs[i].mask; i++) { + if (mer & eirqs[i].mask) { + irq = eirqs[i].irq; /* * There is a little mess wrt which IRQ really caused this irq request. The * main problem is that IIRQ_REG and EIRQ_REG reflect the state when they * are read - which is long after the request came in. In theory IRQs should * not just go away but they occassionally do */ - if (irq>4 && irq<=15 && mext_disabled) { - /*aliased_irq++;*/ - goto iirq; - } - if (irq_tab[irq].handler == q40_defhand ) { - printk("handler for IRQ %d not defined\n",irq); - continue; /* ignore uninited INTs :-( */ - } - if ( irq_tab[irq].state & IRQ_INPROGRESS ) { - /* some handlers do local_irq_enable() for irq latency reasons, */ - /* however reentering an active irq handler is not permitted */ + if (irq > 4 && irq <= 15 && mext_disabled) { + /*aliased_irq++;*/ + goto iirq; + } + if (q40_state[irq] & IRQ_INPROGRESS) { + /* some handlers do local_irq_enable() for irq latency reasons, */ + /* however reentering an active irq handler is not permitted */ #ifdef IP_USE_DISABLE - /* in theory this is the better way to do it because it still */ - /* lets through eg the serial irqs, unfortunately it crashes */ - disable_irq(irq); - disabled=1; + /* in theory this is the better way to do it because it still */ + /* lets through eg the serial irqs, unfortunately it crashes */ + disable_irq(irq); + disabled = 1; #else - /*printk("IRQ_INPROGRESS detected for irq %d, disabling - %s disabled\n",irq,disabled ? "already" : "not yet"); */ - fp->sr = (((fp->sr) & (~0x700))+0x200); - disabled=1; + /*printk("IRQ_INPROGRESS detected for irq %d, disabling - %s disabled\n", + irq, disabled ? "already" : "not yet"); */ + fp->sr = (((fp->sr) & (~0x700))+0x200); + disabled = 1; #endif - goto iirq; - } - irq_tab[irq].count++; - irq_tab[irq].state |= IRQ_INPROGRESS; - irq_tab[irq].handler(irq,irq_tab[irq].dev_id,fp); - irq_tab[irq].state &= ~IRQ_INPROGRESS; - - /* naively enable everything, if that fails than */ - /* this function will be reentered immediately thus */ - /* getting another chance to disable the IRQ */ - - if ( disabled ) { + goto iirq; + } + q40_state[irq] |= IRQ_INPROGRESS; + m68k_handle_int(irq, fp); + q40_state[irq] &= ~IRQ_INPROGRESS; + + /* naively enable everything, if that fails than */ + /* this function will be reentered immediately thus */ + /* getting another chance to disable the IRQ */ + + if (disabled) { #ifdef IP_USE_DISABLE - if (irq>4){ - disabled=0; - enable_irq(irq);} + if (irq > 4) { + disabled = 0; + enable_irq(irq); + } #else - disabled=0; - /*printk("reenabling irq %d\n",irq); */ + disabled = 0; + /*printk("reenabling irq %d\n", irq); */ #endif - } + } // used to do 'goto repeat;' here, this delayed bh processing too long - return IRQ_HANDLED; - } - } - if (mer && ccleirq>0 && !aliased_irq) - printk("ISA interrupt from unknown source? EIRQ_REG = %x\n",mer),ccleirq--; - } - iirq: - mir=master_inb(IIRQ_REG); - /* should test whether keyboard irq is really enabled, doing it in defhand */ - if (mir&Q40_IRQ_KEYB_MASK) { - irq_tab[Q40_IRQ_KEYBOARD].count++; - irq_tab[Q40_IRQ_KEYBOARD].handler(Q40_IRQ_KEYBOARD,irq_tab[Q40_IRQ_KEYBOARD].dev_id,fp); - } - return IRQ_HANDLED; -} - -int show_q40_interrupts (struct seq_file *p, void *v) -{ - int i; - - for (i = 0; i <= Q40_IRQ_MAX; i++) { - if (irq_tab[i].count) - seq_printf(p, "%sIRQ %02d: %8d %s%s\n", - (i<=15) ? "ISA-" : " " , - i, irq_tab[i].count, - irq_tab[i].devname[0] ? irq_tab[i].devname : "?", - irq_tab[i].handler == q40_defhand ? - " (now unassigned)" : ""); + return; + } + } + if (mer && ccleirq > 0 && !aliased_irq) { + printk("ISA interrupt from unknown source? EIRQ_REG = %x\n",mer); + ccleirq--; + } } - return 0; -} - + iirq: + mir = master_inb(IIRQ_REG); + /* should test whether keyboard irq is really enabled, doing it in defhand */ + if (mir & Q40_IRQ_KEYB_MASK) + m68k_handle_int(Q40_IRQ_KEYBOARD, fp); -static irqreturn_t q40_defhand (int irq, void *dev_id, struct pt_regs *fp) -{ - if (irq!=Q40_IRQ_KEYBOARD) - printk ("Unknown q40 interrupt %d\n", irq); - else master_outb(-1,KEYBOARD_UNLOCK_REG); - return IRQ_NONE; + return; } -static irqreturn_t default_handler(int lev, void *dev_id, struct pt_regs *regs) -{ - printk ("Uninitialised interrupt level %d\n", lev); - return IRQ_NONE; -} - -irqreturn_t (*q40_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = { - [0] = default_handler, - [1] = default_handler, - [2] = default_handler, - [3] = default_handler, - [4] = default_handler, - [5] = default_handler, - [6] = default_handler, - [7] = default_handler -}; - -void q40_enable_irq (unsigned int irq) +void q40_enable_irq(unsigned int irq) { - if ( irq>=5 && irq<=15 ) - { - mext_disabled--; - if (mext_disabled>0) - printk("q40_enable_irq : nested disable/enable\n"); - if (mext_disabled==0) - master_outb(1,EXT_ENABLE_REG); - } + if (irq >= 5 && irq <= 15) { + mext_disabled--; + if (mext_disabled > 0) + printk("q40_enable_irq : nested disable/enable\n"); + if (mext_disabled == 0) + master_outb(1, EXT_ENABLE_REG); + } } -void q40_disable_irq (unsigned int irq) +void q40_disable_irq(unsigned int irq) { - /* disable ISA iqs : only do something if the driver has been - * verified to be Q40 "compatible" - right now IDE, NE2K - * Any driver should not attempt to sleep across disable_irq !! - */ - - if ( irq>=5 && irq<=15 ) { - master_outb(0,EXT_ENABLE_REG); - mext_disabled++; - if (mext_disabled>1) printk("disable_irq nesting count %d\n",mext_disabled); - } + /* disable ISA iqs : only do something if the driver has been + * verified to be Q40 "compatible" - right now IDE, NE2K + * Any driver should not attempt to sleep across disable_irq !! + */ + + if (irq >= 5 && irq <= 15) { + master_outb(0, EXT_ENABLE_REG); + mext_disabled++; + if (mext_disabled > 1) + printk("disable_irq nesting count %d\n",mext_disabled); + } } -unsigned long q40_probe_irq_on (void) +unsigned long q40_probe_irq_on(void) { - printk("irq probing not working - reconfigure the driver to avoid this\n"); - return -1; + printk("irq probing not working - reconfigure the driver to avoid this\n"); + return -1; } -int q40_probe_irq_off (unsigned long irqs) +int q40_probe_irq_off(unsigned long irqs) { - return -1; + return -1; } -/* - * Local variables: - * compile-command: "m68k-linux-gcc -D__KERNEL__ -I/home/rz/lx/linux-2.2.6/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -m68040 -c -o q40ints.o q40ints.c" - * End: - */ diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c index f1ca0dfbaa67..553c304aa2c5 100644 --- a/arch/m68k/sun3/config.c +++ b/arch/m68k/sun3/config.c @@ -36,7 +36,6 @@ extern char _text, _end; char sun3_reserved_pmeg[SUN3_PMEGS_NUM]; extern unsigned long sun3_gettimeoffset(void); -extern int show_sun3_interrupts (struct seq_file *, void *); extern void sun3_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); extern void sun3_get_model (char* model); extern void idprom_init (void); @@ -147,13 +146,6 @@ void __init config_sun3(void) mach_sched_init = sun3_sched_init; mach_init_IRQ = sun3_init_IRQ; - mach_default_handler = &sun3_default_handler; - mach_request_irq = sun3_request_irq; - mach_free_irq = sun3_free_irq; - enable_irq = sun3_enable_irq; - disable_irq = sun3_disable_irq; - mach_process_int = sun3_process_int; - mach_get_irq_list = show_sun3_interrupts; mach_reset = sun3_reboot; mach_gettimeoffset = sun3_gettimeoffset; mach_get_model = sun3_get_model; diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index e62a033cd493..0912435e9e90 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -19,7 +19,6 @@ #include <linux/seq_file.h> extern void sun3_leds (unsigned char); -static irqreturn_t sun3_inthandle(int irq, void *dev_id, struct pt_regs *fp); void sun3_disable_interrupts(void) { @@ -40,48 +39,30 @@ int led_pattern[8] = { volatile unsigned char* sun3_intreg; -void sun3_insert_irq(irq_node_t **list, irq_node_t *node) -{ -} - -void sun3_delete_irq(irq_node_t **list, void *dev_id) -{ -} - void sun3_enable_irq(unsigned int irq) { - *sun3_intreg |= (1<<irq); + *sun3_intreg |= (1 << irq); } void sun3_disable_irq(unsigned int irq) { - *sun3_intreg &= ~(1<<irq); -} - -inline void sun3_do_irq(int irq, struct pt_regs *fp) -{ - kstat_cpu(0).irqs[SYS_IRQS + irq]++; - *sun3_intreg &= ~(1<<irq); - *sun3_intreg |= (1<<irq); + *sun3_intreg &= ~(1 << irq); } static irqreturn_t sun3_int7(int irq, void *dev_id, struct pt_regs *fp) { - sun3_do_irq(irq,fp); - if(!(kstat_cpu(0).irqs[SYS_IRQS + irq] % 2000)) - sun3_leds(led_pattern[(kstat_cpu(0).irqs[SYS_IRQS+irq]%16000) - /2000]); + *sun3_intreg |= (1 << irq); + if (!(kstat_cpu(0).irqs[irq] % 2000)) + sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 16000) / 2000]); return IRQ_HANDLED; } static irqreturn_t sun3_int5(int irq, void *dev_id, struct pt_regs *fp) { - kstat_cpu(0).irqs[SYS_IRQS + irq]++; #ifdef CONFIG_SUN3 intersil_clear(); #endif - *sun3_intreg &= ~(1<<irq); - *sun3_intreg |= (1<<irq); + *sun3_intreg |= (1 << irq); #ifdef CONFIG_SUN3 intersil_clear(); #endif @@ -89,65 +70,8 @@ static irqreturn_t sun3_int5(int irq, void *dev_id, struct pt_regs *fp) #ifndef CONFIG_SMP update_process_times(user_mode(fp)); #endif - if(!(kstat_cpu(0).irqs[SYS_IRQS + irq] % 20)) - sun3_leds(led_pattern[(kstat_cpu(0).irqs[SYS_IRQS+irq]%160) - /20]); - return IRQ_HANDLED; -} - -/* handle requested ints, excepting 5 and 7, which always do the same - thing */ -irqreturn_t (*sun3_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = { - [0] = sun3_inthandle, - [1] = sun3_inthandle, - [2] = sun3_inthandle, - [3] = sun3_inthandle, - [4] = sun3_inthandle, - [5] = sun3_int5, - [6] = sun3_inthandle, - [7] = sun3_int7 -}; - -static const char *dev_names[SYS_IRQS] = { - [5] = "timer", - [7] = "int7 handler" -}; -static void *dev_ids[SYS_IRQS]; -static irqreturn_t (*sun3_inthandler[SYS_IRQS])(int, void *, struct pt_regs *) = { - [5] = sun3_int5, - [7] = sun3_int7 -}; -static irqreturn_t (*sun3_vechandler[SUN3_INT_VECS])(int, void *, struct pt_regs *); -static void *vec_ids[SUN3_INT_VECS]; -static const char *vec_names[SUN3_INT_VECS]; -static int vec_ints[SUN3_INT_VECS]; - - -int show_sun3_interrupts(struct seq_file *p, void *v) -{ - int i; - - for(i = 0; i < (SUN3_INT_VECS-1); i++) { - if(sun3_vechandler[i] != NULL) { - seq_printf(p, "vec %3d: %10u %s\n", i+64, - vec_ints[i], - (vec_names[i]) ? vec_names[i] : - "sun3_vechandler"); - } - } - - return 0; -} - -static irqreturn_t sun3_inthandle(int irq, void *dev_id, struct pt_regs *fp) -{ - if(sun3_inthandler[irq] == NULL) - panic ("bad interrupt %d received (id %p)\n",irq, dev_id); - - kstat_cpu(0).irqs[SYS_IRQS + irq]++; - *sun3_intreg &= ~(1<<irq); - - sun3_inthandler[irq](irq, dev_ids[irq], fp); + if (!(kstat_cpu(0).irqs[irq] % 20)) + sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 160) / 20]); return IRQ_HANDLED; } @@ -157,109 +81,31 @@ static irqreturn_t sun3_vec255(int irq, void *dev_id, struct pt_regs *fp) return IRQ_HANDLED; } -void sun3_init_IRQ(void) +static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) { - int i; - - *sun3_intreg = 1; - - for(i = 0; i < SYS_IRQS; i++) - { - if(dev_names[i]) - cpu_request_irq(i, sun3_default_handler[i], 0, - dev_names[i], NULL); - } - - for(i = 0; i < 192; i++) - sun3_vechandler[i] = NULL; - - sun3_vechandler[191] = sun3_vec255; -} - -int sun3_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, const char *devname, void *dev_id) -{ - - if(irq < SYS_IRQS) { - if(sun3_inthandler[irq] != NULL) { - printk("sun3_request_irq: request for irq %d -- already taken!\n", irq); - return 1; - } - - sun3_inthandler[irq] = handler; - dev_ids[irq] = dev_id; - dev_names[irq] = devname; - - /* setting devname would be nice */ - cpu_request_irq(irq, sun3_default_handler[irq], 0, devname, - NULL); - - return 0; - } else { - if((irq >= 64) && (irq <= 255)) { - int vec; - - vec = irq - 64; - if(sun3_vechandler[vec] != NULL) { - printk("sun3_request_irq: request for vec %d -- already taken!\n", irq); - return 1; - } - - sun3_vechandler[vec] = handler; - vec_ids[vec] = dev_id; - vec_names[vec] = devname; - vec_ints[vec] = 0; - - return 0; - } - } - - printk("sun3_request_irq: invalid irq %d\n", irq); - return 1; + *sun3_intreg &= ~(1 << irq); + m68k_handle_int(irq, fp); } -void sun3_free_irq(unsigned int irq, void *dev_id) -{ - - if(irq < SYS_IRQS) { - if(sun3_inthandler[irq] == NULL) - panic("sun3_free_int: attempt to free unused irq %d\n", irq); - if(dev_ids[irq] != dev_id) - panic("sun3_free_int: incorrect dev_id for irq %d\n", irq); - - sun3_inthandler[irq] = NULL; - return; - } else if((irq >= 64) && (irq <= 255)) { - int vec; - - vec = irq - 64; - if(sun3_vechandler[vec] == NULL) - panic("sun3_free_int: attempt to free unused vector %d\n", irq); - if(vec_ids[irq] != dev_id) - panic("sun3_free_int: incorrect dev_id for vec %d\n", irq); - - sun3_vechandler[vec] = NULL; - return; - } else { - panic("sun3_free_irq: invalid irq %d\n", irq); - } -} +static struct irq_controller sun3_irq_controller = { + .name = "sun3", + .lock = SPIN_LOCK_UNLOCKED, + .startup = m68k_irq_startup, + .shutdown = m68k_irq_shutdown, + .enable = sun3_enable_irq, + .disable = sun3_disable_irq, +}; -irqreturn_t sun3_process_int(int irq, struct pt_regs *regs) +void sun3_init_IRQ(void) { + *sun3_intreg = 1; - if((irq >= 64) && (irq <= 255)) { - int vec; - - vec = irq - 64; - if(sun3_vechandler[vec] == NULL) - panic ("bad interrupt vector %d received\n",irq); + m68k_setup_auto_interrupt(sun3_inthandle); + m68k_setup_irq_controller(&sun3_irq_controller, IRQ_AUTO_1, 7); + m68k_setup_user_interrupt(VEC_USER, 192, NULL); - vec_ints[vec]++; - return sun3_vechandler[vec](irq, vec_ids[vec], regs); - } else { - panic("sun3_process_int: unable to handle interrupt vector %d\n", - irq); - } + request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL); + request_irq(IRQ_AUTO_7, sun3_int7, 0, "int7", NULL); + request_irq(IRQ_USER+127, sun3_vec255, 0, "vec255", NULL); } diff --git a/arch/m68k/sun3x/config.c b/arch/m68k/sun3x/config.c index 0920f5d33606..52fb17408869 100644 --- a/arch/m68k/sun3x/config.c +++ b/arch/m68k/sun3x/config.c @@ -52,17 +52,10 @@ void __init config_sun3x(void) sun3x_prom_init(); - mach_get_irq_list = show_sun3_interrupts; mach_max_dma_address = 0xffffffff; /* we can DMA anywhere, whee */ - mach_default_handler = &sun3_default_handler; mach_sched_init = sun3x_sched_init; mach_init_IRQ = sun3_init_IRQ; - enable_irq = sun3_enable_irq; - disable_irq = sun3_disable_irq; - mach_request_irq = sun3_request_irq; - mach_free_irq = sun3_free_irq; - mach_process_int = sun3_process_int; mach_gettimeoffset = sun3x_gettimeoffset; mach_reset = sun3x_reboot; diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c index a9bf6cc3abd1..676e868d26fb 100644 --- a/arch/mips/kernel/irixsig.c +++ b/arch/mips/kernel/irixsig.c @@ -13,6 +13,7 @@ #include <linux/smp_lock.h> #include <linux/time.h> #include <linux/ptrace.h> +#include <linux/resource.h> #include <asm/ptrace.h> #include <asm/uaccess.h> @@ -540,8 +541,6 @@ out: #define IRIX_P_PGID 2 #define IRIX_P_ALL 7 -extern int getrusage(struct task_struct *, int, struct rusage __user *); - #define W_EXITED 1 #define W_TRAPPED 2 #define W_STOPPED 4 diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c index 19e1ef43eb4b..1137dd6ea7aa 100644 --- a/arch/mips/kernel/sysirix.c +++ b/arch/mips/kernel/sysirix.c @@ -31,6 +31,7 @@ #include <linux/socket.h> #include <linux/security.h> #include <linux/syscalls.h> +#include <linux/resource.h> #include <asm/ptrace.h> #include <asm/page.h> @@ -235,7 +236,6 @@ asmlinkage int irix_prctl(unsigned option, ...) #undef DEBUG_PROCGRPS extern unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt); -extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru); extern char *prom_getenv(char *name); extern long prom_setenv(char *name, char *value); diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index c858eb4bef17..b5431ccf1147 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -1654,7 +1654,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return -EINVAL; vma->vm_pgoff = offset >> PAGE_SHIFT; - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp, vma->vm_page_prot, mmap_state, write_combine); diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 5ad87c426bed..247937dd8b73 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -877,7 +877,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return -EINVAL; vma->vm_pgoff = offset >> PAGE_SHIFT; - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp, vma->vm_page_prot, mmap_state, write_combine); diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c index 2b87f82df135..2ab8f2be911e 100644 --- a/arch/powerpc/kernel/proc_ppc64.c +++ b/arch/powerpc/kernel/proc_ppc64.c @@ -115,8 +115,6 @@ static int page_map_mmap( struct file *file, struct vm_area_struct *vma ) { struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); - vma->vm_flags |= VM_SHM | VM_LOCKED; - if ((vma->vm_end - vma->vm_start) > dp->size) return -EINVAL; diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 91a6e04d9741..52f5659534f4 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -32,6 +32,7 @@ #include <linux/delay.h> #include <linux/kprobes.h> #include <linux/kexec.h> +#include <linux/backlight.h> #include <asm/kdebug.h> #include <asm/pgtable.h> @@ -105,10 +106,18 @@ int die(const char *str, struct pt_regs *regs, long err) spin_lock_irq(&die_lock); bust_spinlocks(1); #ifdef CONFIG_PMAC_BACKLIGHT - if (machine_is(powermac)) { - set_backlight_enable(1); - set_backlight_level(BACKLIGHT_MAX); + mutex_lock(&pmac_backlight_mutex); + if (machine_is(powermac) && pmac_backlight) { + struct backlight_properties *props; + + down(&pmac_backlight->sem); + props = pmac_backlight->props; + props->brightness = props->max_brightness; + props->power = FB_BLANK_UNBLANK; + props->update_status(pmac_backlight); + up(&pmac_backlight->sem); } + mutex_unlock(&pmac_backlight_mutex); #endif printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); #ifdef CONFIG_PREEMPT diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c index 2dfde61c8412..ce696c1cca75 100644 --- a/arch/powerpc/platforms/cell/cbe_regs.c +++ b/arch/powerpc/platforms/cell/cbe_regs.c @@ -89,7 +89,7 @@ void __init cbe_regs_init(void) struct device_node *cpu; /* Build local fast map of CPUs */ - for_each_cpu(i) + for_each_possible_cpu(i) cbe_thread_map[i].cpu_node = of_get_cpu_node(i, NULL); /* Find maps for each device tree CPU */ @@ -110,7 +110,7 @@ void __init cbe_regs_init(void) return; } map->cpu_node = cpu; - for_each_cpu(i) + for_each_possible_cpu(i) if (cbe_thread_map[i].cpu_node == cpu) cbe_thread_map[i].regs = map; diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index f4e2d8805c9e..1bbf822b4efc 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -180,7 +180,7 @@ static int setup_iic_hardcoded(void) unsigned long regs; struct iic *iic; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { iic = &per_cpu(iic, cpu); nodeid = cpu/2; diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c index 8be2f7d071f0..498b042e1837 100644 --- a/arch/powerpc/platforms/powermac/backlight.c +++ b/arch/powerpc/platforms/powermac/backlight.c @@ -3,200 +3,148 @@ * Contains support for the backlight. * * Copyright (C) 2000 Benjamin Herrenschmidt + * Copyright (C) 2006 Michael Hanselmann <linux-kernel@hansmi.ch> * */ #include <linux/config.h> #include <linux/kernel.h> -#include <linux/module.h> -#include <linux/stddef.h> -#include <linux/reboot.h> -#include <linux/nvram.h> -#include <linux/console.h> -#include <asm/sections.h> -#include <asm/ptrace.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/system.h> +#include <linux/fb.h> +#include <linux/backlight.h> #include <asm/prom.h> -#include <asm/machdep.h> -#include <asm/nvram.h> #include <asm/backlight.h> -#include <linux/adb.h> -#include <linux/pmu.h> +#define OLD_BACKLIGHT_MAX 15 -static struct backlight_controller *backlighter; -static void* backlighter_data; -static int backlight_autosave; -static int backlight_level = BACKLIGHT_MAX; -static int backlight_enabled = 1; -static int backlight_req_level = -1; -static int backlight_req_enable = -1; +/* Protect the pmac_backlight variable */ +DEFINE_MUTEX(pmac_backlight_mutex); -static void backlight_callback(void *); -static DECLARE_WORK(backlight_work, backlight_callback, NULL); +/* Main backlight storage + * + * Backlight drivers in this variable are required to have the "props" + * attribute set and to have an update_status function. + * + * We can only store one backlight here, but since Apple laptops have only one + * internal display, it doesn't matter. Other backlight drivers can be used + * independently. + * + * Lock ordering: + * pmac_backlight_mutex (global, main backlight) + * pmac_backlight->sem (backlight class) + */ +struct backlight_device *pmac_backlight; -void register_backlight_controller(struct backlight_controller *ctrler, - void *data, char *type) +int pmac_has_backlight_type(const char *type) { - struct device_node* bk_node; - char *prop; - int valid = 0; - - /* There's already a matching controller, bail out */ - if (backlighter != NULL) - return; - - bk_node = find_devices("backlight"); - -#ifdef CONFIG_ADB_PMU - /* Special case for the old PowerBook since I can't test on it */ - backlight_autosave = machine_is_compatible("AAPL,3400/2400") - || machine_is_compatible("AAPL,3500"); - if ((backlight_autosave - || machine_is_compatible("AAPL,PowerBook1998") - || machine_is_compatible("PowerBook1,1")) - && !strcmp(type, "pmu")) - valid = 1; -#endif + struct device_node* bk_node = find_devices("backlight"); + if (bk_node) { - prop = get_property(bk_node, "backlight-control", NULL); - if (prop && !strncmp(prop, type, strlen(type))) - valid = 1; - } - if (!valid) - return; - backlighter = ctrler; - backlighter_data = data; - - if (bk_node && !backlight_autosave) - prop = get_property(bk_node, "bklt", NULL); - else - prop = NULL; - if (prop) { - backlight_level = ((*prop)+1) >> 1; - if (backlight_level > BACKLIGHT_MAX) - backlight_level = BACKLIGHT_MAX; + char *prop = get_property(bk_node, "backlight-control", NULL); + if (prop && strncmp(prop, type, strlen(type)) == 0) + return 1; } -#ifdef CONFIG_ADB_PMU - if (backlight_autosave) { - struct adb_request req; - pmu_request(&req, NULL, 2, 0xd9, 0); - while (!req.complete) - pmu_poll(); - backlight_level = req.reply[0] >> 4; - } -#endif - acquire_console_sem(); - if (!backlighter->set_enable(1, backlight_level, data)) - backlight_enabled = 1; - release_console_sem(); - - printk(KERN_INFO "Registered \"%s\" backlight controller," - "level: %d/15\n", type, backlight_level); + return 0; } -EXPORT_SYMBOL(register_backlight_controller); -void unregister_backlight_controller(struct backlight_controller - *ctrler, void *data) +int pmac_backlight_curve_lookup(struct fb_info *info, int value) { - /* We keep the current backlight level (for now) */ - if (ctrler == backlighter && data == backlighter_data) - backlighter = NULL; + int level = (FB_BACKLIGHT_LEVELS - 1); + + if (info && info->bl_dev) { + int i, max = 0; + + /* Look for biggest value */ + for (i = 0; i < FB_BACKLIGHT_LEVELS; i++) + max = max((int)info->bl_curve[i], max); + + /* Look for nearest value */ + for (i = 0; i < FB_BACKLIGHT_LEVELS; i++) { + int diff = abs(info->bl_curve[i] - value); + if (diff < max) { + max = diff; + level = i; + } + } + + } + + return level; } -EXPORT_SYMBOL(unregister_backlight_controller); -static int __set_backlight_enable(int enable) +static void pmac_backlight_key(int direction) { - int rc; - - if (!backlighter) - return -ENODEV; - acquire_console_sem(); - rc = backlighter->set_enable(enable, backlight_level, - backlighter_data); - if (!rc) - backlight_enabled = enable; - release_console_sem(); - return rc; + mutex_lock(&pmac_backlight_mutex); + if (pmac_backlight) { + struct backlight_properties *props; + int brightness; + + down(&pmac_backlight->sem); + props = pmac_backlight->props; + + brightness = props->brightness + + ((direction?-1:1) * (props->max_brightness / 15)); + + if (brightness < 0) + brightness = 0; + else if (brightness > props->max_brightness) + brightness = props->max_brightness; + + props->brightness = brightness; + props->update_status(pmac_backlight); + + up(&pmac_backlight->sem); + } + mutex_unlock(&pmac_backlight_mutex); } -int set_backlight_enable(int enable) + +void pmac_backlight_key_up() { - if (!backlighter) - return -ENODEV; - backlight_req_enable = enable; - schedule_work(&backlight_work); - return 0; + pmac_backlight_key(0); } -EXPORT_SYMBOL(set_backlight_enable); - -int get_backlight_enable(void) +void pmac_backlight_key_down() { - if (!backlighter) - return -ENODEV; - return backlight_enabled; + pmac_backlight_key(1); } -EXPORT_SYMBOL(get_backlight_enable); -static int __set_backlight_level(int level) +int pmac_backlight_set_legacy_brightness(int brightness) { - int rc = 0; - - if (!backlighter) - return -ENODEV; - if (level < BACKLIGHT_MIN) - level = BACKLIGHT_OFF; - if (level > BACKLIGHT_MAX) - level = BACKLIGHT_MAX; - acquire_console_sem(); - if (backlight_enabled) - rc = backlighter->set_level(level, backlighter_data); - if (!rc) - backlight_level = level; - release_console_sem(); - if (!rc && !backlight_autosave) { - level <<=1; - if (level & 0x10) - level |= 0x01; - // -- todo: save to property "bklt" + int error = -ENXIO; + + mutex_lock(&pmac_backlight_mutex); + if (pmac_backlight) { + struct backlight_properties *props; + + down(&pmac_backlight->sem); + props = pmac_backlight->props; + props->brightness = brightness * + props->max_brightness / OLD_BACKLIGHT_MAX; + props->update_status(pmac_backlight); + up(&pmac_backlight->sem); + + error = 0; } - return rc; + mutex_unlock(&pmac_backlight_mutex); + + return error; } -int set_backlight_level(int level) + +int pmac_backlight_get_legacy_brightness() { - if (!backlighter) - return -ENODEV; - backlight_req_level = level; - schedule_work(&backlight_work); - return 0; -} + int result = -ENXIO; -EXPORT_SYMBOL(set_backlight_level); + mutex_lock(&pmac_backlight_mutex); + if (pmac_backlight) { + struct backlight_properties *props; -int get_backlight_level(void) -{ - if (!backlighter) - return -ENODEV; - return backlight_level; -} -EXPORT_SYMBOL(get_backlight_level); + down(&pmac_backlight->sem); + props = pmac_backlight->props; + result = props->brightness * + OLD_BACKLIGHT_MAX / props->max_brightness; + up(&pmac_backlight->sem); + } + mutex_unlock(&pmac_backlight_mutex); -static void backlight_callback(void *dummy) -{ - int level, enable; - - do { - level = backlight_req_level; - enable = backlight_req_enable; - mb(); - - if (level >= 0) - __set_backlight_level(level); - if (enable >= 0) - __set_backlight_enable(enable); - } while(cmpxchg(&backlight_req_level, level, -1) != level || - cmpxchg(&backlight_req_enable, enable, -1) != enable); + return result; } diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 4735b41c113c..0741df8c41b7 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -26,9 +26,6 @@ #include <asm/prom.h> #include <asm/machdep.h> #include <asm/xmon.h> -#ifdef CONFIG_PMAC_BACKLIGHT -#include <asm/backlight.h> -#endif #include <asm/processor.h> #include <asm/pgtable.h> #include <asm/mmu.h> diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 809673a36f7a..d20accf9650d 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1032,7 +1032,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return -EINVAL; vma->vm_pgoff = offset >> PAGE_SHIFT; - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp, vma->vm_page_prot, mmap_state, write_combine); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 0a04e4a564b2..b282034452a4 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -47,6 +47,7 @@ #include <asm/irq.h> #include <asm/page.h> #include <asm/ptrace.h> +#include <asm/sections.h> /* * Machine setup.. @@ -66,11 +67,6 @@ unsigned long __initdata zholes_size[MAX_NR_ZONES]; static unsigned long __initdata memory_end; /* - * Setup options - */ -extern int _text,_etext, _edata, _end; - -/* * This is set up by the setup-routine at boot-time * for S390 need to find out, what we have to setup * using address 0x10400 ... @@ -80,15 +76,11 @@ extern int _text,_etext, _edata, _end; static struct resource code_resource = { .name = "Kernel code", - .start = (unsigned long) &_text, - .end = (unsigned long) &_etext - 1, .flags = IORESOURCE_BUSY | IORESOURCE_MEM, }; static struct resource data_resource = { .name = "Kernel data", - .start = (unsigned long) &_etext, - .end = (unsigned long) &_edata - 1, .flags = IORESOURCE_BUSY | IORESOURCE_MEM, }; @@ -422,6 +414,11 @@ setup_resources(void) struct resource *res; int i; + code_resource.start = (unsigned long) &_text; + code_resource.end = (unsigned long) &_etext - 1; + data_resource.start = (unsigned long) &_etext; + data_resource.end = (unsigned long) &_edata - 1; + for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) { res = alloc_bootmem_low(sizeof(struct resource)); res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 6d7173fc55a3..79149314ed04 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -300,8 +300,6 @@ void mconsole_reboot(struct mc_request *req) machine_restart(NULL); } -extern void ctrl_alt_del(void); - void mconsole_cad(struct mc_request *req) { mconsole_reply(req, "", 0, 0); diff --git a/arch/um/include/sysdep-x86_64/syscalls.h b/arch/um/include/sysdep-x86_64/syscalls.h index e06f83e80f4a..5e86aa047b2b 100644 --- a/arch/um/include/sysdep-x86_64/syscalls.h +++ b/arch/um/include/sysdep-x86_64/syscalls.h @@ -12,8 +12,6 @@ typedef long syscall_handler_t(void); -extern syscall_handler_t *ia32_sys_call_table[]; - extern syscall_handler_t *sys_call_table[]; #define EXECUTE_SYSCALL(syscall, regs) \ diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index b8d5116d7371..fdb82658b1a1 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -823,7 +823,7 @@ void __init setup_arch(char **cmdline_p) #endif #ifdef CONFIG_KEXEC if (crashk_res.start != crashk_res.end) { - reserve_bootmem(crashk_res.start, + reserve_bootmem_generic(crashk_res.start, crashk_res.end - crashk_res.start + 1); } #endif diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index de19501aa809..c6f471b9eaa0 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -350,17 +350,6 @@ __pci_mmap_make_offset(struct pci_dev *dev, struct vm_area_struct *vma, } /* - * Set vm_flags of VMA, as appropriate for this architecture, for a pci device - * mapping. - */ -static __inline__ void -__pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; -} - -/* * Set vm_page_prot of VMA, as appropriate for this architecture, for a pci * device mapping. */ @@ -399,7 +388,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, if (ret < 0) return ret; - __pci_mmap_set_flags(dev, vma, mmap_state); __pci_mmap_set_pgprot(dev, vma, mmap_state, write_combine); ret = io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, |
