diff options
Diffstat (limited to 'arch/sparc/kernel')
79 files changed, 1191 insertions, 544 deletions
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index b90b4a1d070a..cb85458f89d2 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_SPARC32) += sun4m_irq.o sun4c_irq.o sun4d_irq.o obj-y += process_$(BITS).o obj-y += signal_$(BITS).o +obj-y += sigutil_$(BITS).o obj-$(CONFIG_SPARC32) += ioport.o obj-y += setup_$(BITS).o obj-y += idprom.o diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index caef9deb5866..812e10bbb0b3 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -13,6 +13,7 @@ #include <linux/pm.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/module.h> #include <asm/io.h> #include <asm/oplib.h> diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c index acf5151f3c1d..f7ea8f032719 100644 --- a/arch/sparc/kernel/auxio_32.c +++ b/arch/sparc/kernel/auxio_32.c @@ -8,6 +8,7 @@ #include <linux/spinlock.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/export.h> #include <asm/oplib.h> #include <asm/io.h> #include <asm/auxio.h> diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c index 89aa4eb20cf5..57073e56ba9e 100644 --- a/arch/sparc/kernel/btext.c +++ b/arch/sparc/kernel/btext.c @@ -6,7 +6,6 @@ #include <linux/kernel.h> #include <linux/string.h> #include <linux/init.h> -#include <linux/module.h> #include <linux/console.h> #include <asm/btext.h> diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 7eef3f741963..38d48a59879c 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -6,6 +6,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/slab.h> +#include <linux/export.h> #include <linux/string.h> #include <linux/init.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c index 138dbbc8dc84..2d1819641769 100644 --- a/arch/sparc/kernel/cpu.c +++ b/arch/sparc/kernel/cpu.c @@ -6,7 +6,7 @@ #include <linux/seq_file.h> #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/init.h> #include <linux/smp.h> #include <linux/threads.h> @@ -396,6 +396,7 @@ static int show_cpuinfo(struct seq_file *m, void *__unused) , cpu_data(0).clock_tick #endif ); + cpucap_info(m); #ifdef CONFIG_SMP smp_bogo(m); #endif @@ -474,11 +475,30 @@ static void __init sun4v_cpu_probe(void) sparc_pmu_type = "niagara2"; break; + case SUN4V_CHIP_NIAGARA3: + sparc_cpu_type = "UltraSparc T3 (Niagara3)"; + sparc_fpu_type = "UltraSparc T3 integrated FPU"; + sparc_pmu_type = "niagara3"; + break; + + case SUN4V_CHIP_NIAGARA4: + sparc_cpu_type = "UltraSparc T4 (Niagara4)"; + sparc_fpu_type = "UltraSparc T4 integrated FPU"; + sparc_pmu_type = "niagara4"; + break; + + case SUN4V_CHIP_NIAGARA5: + sparc_cpu_type = "UltraSparc T5 (Niagara5)"; + sparc_fpu_type = "UltraSparc T5 integrated FPU"; + sparc_pmu_type = "niagara5"; + break; + default: printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n", prom_cpu_compatible); sparc_cpu_type = "Unknown SUN4V CPU"; sparc_fpu_type = "Unknown SUN4V FPU"; + sparc_pmu_type = "Unknown SUN4V PMU"; break; } } diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c index d91fd782743a..e4de74c2c9b0 100644 --- a/arch/sparc/kernel/cpumap.c +++ b/arch/sparc/kernel/cpumap.c @@ -3,7 +3,7 @@ * Copyright (C) 2009 Hong H. Pham <hong.pham@windriver.com> */ -#include <linux/module.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/kernel.h> #include <linux/init.h> @@ -324,6 +324,9 @@ static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index) switch (sun4v_chip_type) { case SUN4V_CHIP_NIAGARA1: case SUN4V_CHIP_NIAGARA2: + case SUN4V_CHIP_NIAGARA3: + case SUN4V_CHIP_NIAGARA4: + case SUN4V_CHIP_NIAGARA5: rover_inc_table = niagara_iterate_method; break; default: diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c index e1ba8ee21b9a..b667aa6f28f6 100644 --- a/arch/sparc/kernel/dma.c +++ b/arch/sparc/kernel/dma.c @@ -1,5 +1,4 @@ #include <linux/kernel.h> -#include <linux/module.h> #include <linux/dma-mapping.h> #include <linux/dma-debug.h> diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index dd1342c0a3be..7429b47c3aca 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -15,12 +15,15 @@ #include <linux/reboot.h> #include <linux/cpu.h> +#include <asm/hypervisor.h> #include <asm/ldc.h> #include <asm/vio.h> #include <asm/mdesc.h> #include <asm/head.h> #include <asm/irq.h> +#include "kernel.h" + #define DRV_MODULE_NAME "ds" #define PFX DRV_MODULE_NAME ": " #define DRV_MODULE_VERSION "1.0" @@ -828,18 +831,32 @@ void ldom_set_var(const char *var, const char *value) } } +static char full_boot_str[256] __attribute__((aligned(32))); +static int reboot_data_supported; + void ldom_reboot(const char *boot_command) { /* Don't bother with any of this if the boot_command * is empty. */ if (boot_command && strlen(boot_command)) { - char full_boot_str[256]; + unsigned long len; strcpy(full_boot_str, "boot "); strcpy(full_boot_str + strlen("boot "), boot_command); + len = strlen(full_boot_str); - ldom_set_var("reboot-command", full_boot_str); + if (reboot_data_supported) { + unsigned long ra = kimage_addr_to_ra(full_boot_str); + unsigned long hv_ret; + + hv_ret = sun4v_reboot_data_set(ra, len); + if (hv_ret != HV_EOK) + pr_err("SUN4V: Unable to set reboot data " + "hv_ret=%lu\n", hv_ret); + } else { + ldom_set_var("reboot-command", full_boot_str); + } } sun4v_mach_sir(); } @@ -1237,6 +1254,16 @@ static struct vio_driver ds_driver = { static int __init ds_init(void) { + unsigned long hv_ret, major, minor; + + if (tlb_type == hypervisor) { + hv_ret = sun4v_get_version(HV_GRP_REBOOT_DATA, &major, &minor); + if (hv_ret == HV_EOK) { + pr_info("SUN4V: Reboot data supported (maj=%lu,min=%lu).\n", + major, minor); + reboot_data_supported = 1; + } + } kthread_run(ds_thread, NULL, "kldomd"); return vio_register_driver(&ds_driver); diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index 77dbf6d45faf..e306fb08ee5e 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -4,7 +4,7 @@ * Copyright (C) 1999 David S. Miller (davem@redhat.com) */ -#include <linux/module.h> +#include <linux/export.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index 9fe08a1ea6c6..f445e98463e6 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -293,7 +293,7 @@ maybe_smp4m_msg: WRITE_PAUSE wr %l4, PSR_ET, %psr WRITE_PAUSE - sll %o3, 28, %o2 ! shift for simpler checks below + srl %o3, 28, %o2 ! shift for simpler checks below maybe_smp4m_msg_check_single: andcc %o2, 0x1, %g0 beq,a maybe_smp4m_msg_check_mask diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index d1f1361c4167..0c218e4c0881 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -42,7 +42,28 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr, extern void fpload(unsigned long *fpregs, unsigned long *fsr); #else /* CONFIG_SPARC32 */ + +#include <asm/trap_block.h> + +struct popc_3insn_patch_entry { + unsigned int addr; + unsigned int insns[3]; +}; +extern struct popc_3insn_patch_entry __popc_3insn_patch, + __popc_3insn_patch_end; + +struct popc_6insn_patch_entry { + unsigned int addr; + unsigned int insns[6]; +}; +extern struct popc_6insn_patch_entry __popc_6insn_patch, + __popc_6insn_patch_end; + extern void __init per_cpu_patch(void); +extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, + struct sun4v_1insn_patch_entry *); +extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *, + struct sun4v_2insn_patch_entry *); extern void __init sun4v_patch(void); extern void __init boot_cpu_id_too_large(int cpu); extern unsigned int dcache_parity_tl1_occurred; diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index aa594c792d19..0d810c2f1d00 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -132,6 +132,8 @@ prom_sun4v_name: .asciz "sun4v" prom_niagara_prefix: .asciz "SUNW,UltraSPARC-T" +prom_sparc_prefix: + .asciz "SPARC-" .align 4 prom_root_compatible: .skip 64 @@ -382,6 +384,22 @@ sun4v_chip_type: 90: ldub [%g7], %g2 ldub [%g1], %g4 cmp %g2, %g4 + bne,pn %icc, 89f + add %g7, 1, %g7 + subcc %g3, 1, %g3 + bne,pt %xcc, 90b + add %g1, 1, %g1 + ba,pt %xcc, 91f + nop + +89: sethi %hi(prom_cpu_compatible), %g1 + or %g1, %lo(prom_cpu_compatible), %g1 + sethi %hi(prom_sparc_prefix), %g7 + or %g7, %lo(prom_sparc_prefix), %g7 + mov 6, %g3 +90: ldub [%g7], %g2 + ldub [%g1], %g4 + cmp %g2, %g4 bne,pn %icc, 4f add %g7, 1, %g7 subcc %g3, 1, %g3 @@ -390,6 +408,28 @@ sun4v_chip_type: sethi %hi(prom_cpu_compatible), %g1 or %g1, %lo(prom_cpu_compatible), %g1 + ldub [%g1 + 6], %g2 + cmp %g2, 'T' + be,pt %xcc, 70f + cmp %g2, 'M' + bne,pn %xcc, 4f + nop + +70: ldub [%g1 + 7], %g2 + cmp %g2, '3' + be,pt %xcc, 5f + mov SUN4V_CHIP_NIAGARA3, %g4 + cmp %g2, '4' + be,pt %xcc, 5f + mov SUN4V_CHIP_NIAGARA4, %g4 + cmp %g2, '5' + be,pt %xcc, 5f + mov SUN4V_CHIP_NIAGARA5, %g4 + ba,pt %xcc, 4f + nop + +91: sethi %hi(prom_cpu_compatible), %g1 + or %g1, %lo(prom_cpu_compatible), %g1 ldub [%g1 + 17], %g2 cmp %g2, '1' be,pt %xcc, 5f @@ -397,6 +437,7 @@ sun4v_chip_type: cmp %g2, '2' be,pt %xcc, 5f mov SUN4V_CHIP_NIAGARA2, %g4 + 4: mov SUN4V_CHIP_UNKNOWN, %g4 5: sethi %hi(sun4v_chip_type), %g2 @@ -514,6 +555,15 @@ niagara_tlb_fixup: cmp %g1, SUN4V_CHIP_NIAGARA2 be,pt %xcc, niagara2_patch nop + cmp %g1, SUN4V_CHIP_NIAGARA3 + be,pt %xcc, niagara2_patch + nop + cmp %g1, SUN4V_CHIP_NIAGARA4 + be,pt %xcc, niagara2_patch + nop + cmp %g1, SUN4V_CHIP_NIAGARA5 + be,pt %xcc, niagara2_patch + nop call generic_patch_copyops nop @@ -528,7 +578,7 @@ niagara2_patch: nop call niagara_patch_bzero nop - call niagara2_patch_pageops + call niagara_patch_pageops nop ba,a,pt %xcc, 80f diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c index 7c60afb835b0..8593672838fd 100644 --- a/arch/sparc/kernel/hvapi.c +++ b/arch/sparc/kernel/hvapi.c @@ -3,7 +3,7 @@ * Copyright (C) 2007 David S. Miller <davem@davemloft.net> */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/init.h> #include <asm/hypervisor.h> @@ -28,16 +28,23 @@ static struct api_info api_table[] = { { .group = HV_GRP_CORE, .flags = FLAG_PRE_API }, { .group = HV_GRP_INTR, }, { .group = HV_GRP_SOFT_STATE, }, + { .group = HV_GRP_TM, }, { .group = HV_GRP_PCI, .flags = FLAG_PRE_API }, { .group = HV_GRP_LDOM, }, { .group = HV_GRP_SVC_CHAN, .flags = FLAG_PRE_API }, { .group = HV_GRP_NCS, .flags = FLAG_PRE_API }, { .group = HV_GRP_RNG, }, + { .group = HV_GRP_PBOOT, }, + { .group = HV_GRP_TPM, }, + { .group = HV_GRP_SDIO, }, + { .group = HV_GRP_SDIO_ERR, }, + { .group = HV_GRP_REBOOT_DATA, }, { .group = HV_GRP_NIAG_PERF, .flags = FLAG_PRE_API }, { .group = HV_GRP_FIRE_PERF, }, { .group = HV_GRP_N2_CPU, }, { .group = HV_GRP_NIU, }, { .group = HV_GRP_VF_CPU, }, + { .group = HV_GRP_KT_CPU, }, { .group = HV_GRP_DIAG, .flags = FLAG_PRE_API }, }; diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S index 8a5f35ffb15e..58d60de4d65b 100644 --- a/arch/sparc/kernel/hvcalls.S +++ b/arch/sparc/kernel/hvcalls.S @@ -798,3 +798,10 @@ ENTRY(sun4v_niagara2_setperf) retl nop ENDPROC(sun4v_niagara2_setperf) + +ENTRY(sun4v_reboot_data_set) + mov HV_FAST_REBOOT_DATA_SET, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_reboot_data_set) diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c index 52a15fe2db19..9167db40720e 100644 --- a/arch/sparc/kernel/idprom.c +++ b/arch/sparc/kernel/idprom.c @@ -8,7 +8,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> -#include <linux/module.h> +#include <linux/export.h> #include <asm/oplib.h> #include <asm/idprom.h> diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 6f01e8c83197..4643d68713fa 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -5,7 +5,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/device.h> diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 1c9c80a1a86a..d0479e2163fa 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -65,9 +65,6 @@ static inline void dma_make_coherent(unsigned long pa, unsigned long len) } #endif -static struct resource *_sparc_find_resource(struct resource *r, - unsigned long); - static void __iomem *_sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz); static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys, unsigned long size, char *name); @@ -143,7 +140,11 @@ void iounmap(volatile void __iomem *virtual) unsigned long vaddr = (unsigned long) virtual & PAGE_MASK; struct resource *res; - if ((res = _sparc_find_resource(&sparc_iomap, vaddr)) == NULL) { + /* + * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case. + * This probably warrants some sort of hashing. + */ + if ((res = lookup_resource(&sparc_iomap, vaddr)) == NULL) { printk("free_io/iounmap: cannot free %lx\n", vaddr); return; } @@ -228,7 +229,7 @@ _sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz) } pa &= PAGE_MASK; - sparc_mapiorange(bus, pa, res->start, res->end - res->start + 1); + sparc_mapiorange(bus, pa, res->start, resource_size(res)); return (void __iomem *)(unsigned long)(res->start + offset); } @@ -240,7 +241,7 @@ static void _sparc_free_io(struct resource *res) { unsigned long plen; - plen = res->end - res->start + 1; + plen = resource_size(res); BUG_ON((plen & (PAGE_SIZE-1)) != 0); sparc_unmapiorange(res->start, plen); release_resource(res); @@ -319,7 +320,7 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p, struct resource *res; struct page *pgv; - if ((res = _sparc_find_resource(&_sparc_dvma, + if ((res = lookup_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { printk("sbus_free_consistent: cannot free %p\n", p); return; @@ -331,9 +332,9 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p, } n = PAGE_ALIGN(n); - if ((res->end-res->start)+1 != n) { + if (resource_size(res) != n) { printk("sbus_free_consistent: region 0x%lx asked 0x%zx\n", - (long)((res->end-res->start)+1), n); + (long)resource_size(res), n); return; } @@ -492,7 +493,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, { struct resource *res; - if ((res = _sparc_find_resource(&_sparc_dvma, + if ((res = lookup_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { printk("pci_free_consistent: cannot free %p\n", p); return; @@ -504,9 +505,9 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, } n = PAGE_ALIGN(n); - if ((res->end-res->start)+1 != n) { + if (resource_size(res) != n) { printk("pci_free_consistent: region 0x%lx asked 0x%lx\n", - (long)((res->end-res->start)+1), (long)n); + (long)resource_size(res), (long)n); return; } @@ -715,25 +716,6 @@ static const struct file_operations sparc_io_proc_fops = { }; #endif /* CONFIG_PROC_FS */ -/* - * This is a version of find_resource and it belongs to kernel/resource.c. - * Until we have agreement with Linus and Martin, it lingers here. - * - * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case. - * This probably warrants some sort of hashing. - */ -static struct resource *_sparc_find_resource(struct resource *root, - unsigned long hit) -{ - struct resource *tmp; - - for (tmp = root->child; tmp != 0; tmp = tmp->sibling) { - if (tmp->start <= hit && tmp->end >= hit) - return tmp; - } - return NULL; -} - static void register_proc_sparc_ioport(void) { #ifdef CONFIG_PROC_FS diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h index 100b9c204e78..42851122bbd9 100644 --- a/arch/sparc/kernel/irq.h +++ b/arch/sparc/kernel/irq.h @@ -88,7 +88,7 @@ BTFIXUPDEF_CALL(void, set_irq_udt, int) #define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu) /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ -#define SUN4D_IPI_IRQ 14 +#define SUN4D_IPI_IRQ 13 extern void sun4d_ipi_interrupt(void); diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index 9b89d842913c..b2668afd1c34 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -13,6 +13,7 @@ #include <linux/kernel_stat.h> #include <linux/seq_file.h> +#include <linux/export.h> #include <asm/cacheflush.h> #include <asm/cpudata.h> diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 4e78862d12fd..d45b710ea7e4 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -5,7 +5,6 @@ * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) */ -#include <linux/module.h> #include <linux/sched.h> #include <linux/linkage.h> #include <linux/ptrace.h> @@ -26,7 +25,7 @@ #include <asm/ptrace.h> #include <asm/processor.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/system.h> #include <asm/irq.h> #include <asm/io.h> diff --git a/arch/sparc/kernel/jump_label.c b/arch/sparc/kernel/jump_label.c index ea2dafc93d78..971fd435a281 100644 --- a/arch/sparc/kernel/jump_label.c +++ b/arch/sparc/kernel/jump_label.c @@ -36,12 +36,4 @@ void arch_jump_label_transform(struct jump_entry *entry, put_online_cpus(); } -void arch_jump_label_text_poke_early(jump_label_t addr) -{ - u32 *insn_p = (u32 *) (unsigned long) addr; - - *insn_p = 0x01000000; - flushi(insn_p); -} - #endif diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h index 6f6544cfa0ef..fd6c36b1df74 100644 --- a/arch/sparc/kernel/kernel.h +++ b/arch/sparc/kernel/kernel.h @@ -4,12 +4,27 @@ #include <linux/interrupt.h> #include <asm/traps.h> +#include <asm/head.h> +#include <asm/io.h> /* cpu.c */ extern const char *sparc_pmu_type; extern unsigned int fsr_storage; extern int ncpus_probed; +#ifdef CONFIG_SPARC64 +/* setup_64.c */ +struct seq_file; +extern void cpucap_info(struct seq_file *); + +static inline unsigned long kimage_addr_to_ra(const char *p) +{ + unsigned long val = (unsigned long) p; + + return kern_base + (val - KERNBASE); +} +#endif + #ifdef CONFIG_SPARC32 /* cpu.c */ extern void cpu_probe(void); diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index 1d361477d7d6..79f310364849 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -47,16 +47,16 @@ kvmap_itlb_tsb_miss: kvmap_itlb_vmalloc_addr: KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_itlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) /* Load and check PTE. */ ldxa [%g5] ASI_PHYS_USE_EC, %g5 mov 1, %g7 sllx %g7, TSB_TAG_INVALID_BIT, %g7 brgez,a,pn %g5, kvmap_itlb_longpath - KTSB_STORE(%g1, %g7) + TSB_STORE(%g1, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) /* fallthrough to TLB load */ @@ -102,9 +102,9 @@ kvmap_itlb_longpath: kvmap_itlb_obp: OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_itlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_itlb_load nop @@ -112,17 +112,17 @@ kvmap_itlb_obp: kvmap_dtlb_obp: OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_dtlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_dtlb_load nop .align 32 kvmap_dtlb_tsb4m_load: - KTSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_LOCK_TAG(%g1, %g2, %g7) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_dtlb_load nop @@ -222,16 +222,16 @@ kvmap_linear_patch: kvmap_dtlb_vmalloc_addr: KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_dtlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) /* Load and check PTE. */ ldxa [%g5] ASI_PHYS_USE_EC, %g5 mov 1, %g7 sllx %g7, TSB_TAG_INVALID_BIT, %g7 brgez,a,pn %g5, kvmap_dtlb_longpath - KTSB_STORE(%g1, %g7) + TSB_STORE(%g1, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) /* fallthrough to TLB load */ diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index 732b0bce6001..435e406fdec3 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -4,7 +4,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/delay.h> diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index d17255a2bbac..a19c8a063683 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -4,7 +4,6 @@ */ #include <linux/kernel.h> -#include <linux/module.h> #include <linux/errno.h> #include <linux/mutex.h> #include <linux/of.h> diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index a8a9a275037d..f1cf6ef011a7 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -9,6 +9,7 @@ #include <linux/of_device.h> #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/export.h> #include <asm/leon.h> #include <asm/leon_pci.h> diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c index 44dc093ee33a..b1bc38853a3d 100644 --- a/arch/sparc/kernel/leon_pci_grpci2.c +++ b/arch/sparc/kernel/leon_pci_grpci2.c @@ -9,7 +9,7 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/delay.h> -#include <linux/module.h> +#include <linux/export.h> #include <asm/io.h> #include <asm/leon.h> #include <asm/vaddrs.h> @@ -215,7 +215,7 @@ struct grpci2_priv { DEFINE_SPINLOCK(grpci2_dev_lock); struct grpci2_priv *grpci2priv; -int grpci2_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +int grpci2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { struct grpci2_priv *priv = dev->bus->sysdata; int irq_group; diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index fe8fb44c609c..1210fde18740 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -28,7 +28,7 @@ #include <asm/tlbflush.h> #include <asm/ptrace.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/irq_regs.h> #include <asm/traps.h> diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index 42f28c7420e1..6dc796280589 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -11,11 +11,13 @@ #include <linux/mm.h> #include <linux/miscdevice.h> #include <linux/bootmem.h> +#include <linux/export.h> #include <asm/cpudata.h> #include <asm/hypervisor.h> #include <asm/mdesc.h> #include <asm/prom.h> +#include <asm/uaccess.h> #include <asm/oplib.h> #include <asm/smp.h> @@ -508,6 +510,8 @@ const char *mdesc_node_name(struct mdesc_handle *hp, u64 node) } EXPORT_SYMBOL(mdesc_node_name); +static u64 max_cpus = 64; + static void __init report_platform_properties(void) { struct mdesc_handle *hp = mdesc_grab(); @@ -543,8 +547,10 @@ static void __init report_platform_properties(void) if (v) printk("PLATFORM: watchdog-max-timeout [%llu ms]\n", *v); v = mdesc_get_property(hp, pn, "max-cpus", NULL); - if (v) - printk("PLATFORM: max-cpus [%llu]\n", *v); + if (v) { + max_cpus = *v; + printk("PLATFORM: max-cpus [%llu]\n", max_cpus); + } #ifdef CONFIG_SMP { @@ -715,7 +721,7 @@ static void __cpuinit set_proc_ids(struct mdesc_handle *hp) } static void __cpuinit get_one_mondo_bits(const u64 *p, unsigned int *mask, - unsigned char def) + unsigned long def, unsigned long max) { u64 val; @@ -726,6 +732,9 @@ static void __cpuinit get_one_mondo_bits(const u64 *p, unsigned int *mask, if (!val || val >= 64) goto use_default; + if (val > max) + val = max; + *mask = ((1U << val) * 64U) - 1U; return; @@ -736,19 +745,28 @@ use_default: static void __cpuinit get_mondo_data(struct mdesc_handle *hp, u64 mp, struct trap_per_cpu *tb) { + static int printed; const u64 *val; val = mdesc_get_property(hp, mp, "q-cpu-mondo-#bits", NULL); - get_one_mondo_bits(val, &tb->cpu_mondo_qmask, 7); + get_one_mondo_bits(val, &tb->cpu_mondo_qmask, 7, ilog2(max_cpus * 2)); val = mdesc_get_property(hp, mp, "q-dev-mondo-#bits", NULL); - get_one_mondo_bits(val, &tb->dev_mondo_qmask, 7); + get_one_mondo_bits(val, &tb->dev_mondo_qmask, 7, 8); val = mdesc_get_property(hp, mp, "q-resumable-#bits", NULL); - get_one_mondo_bits(val, &tb->resum_qmask, 6); + get_one_mondo_bits(val, &tb->resum_qmask, 6, 7); val = mdesc_get_property(hp, mp, "q-nonresumable-#bits", NULL); - get_one_mondo_bits(val, &tb->nonresum_qmask, 2); + get_one_mondo_bits(val, &tb->nonresum_qmask, 2, 2); + if (!printed++) { + pr_info("SUN4V: Mondo queue sizes " + "[cpu(%u) dev(%u) r(%u) nr(%u)]\n", + tb->cpu_mondo_qmask + 1, + tb->dev_mondo_qmask + 1, + tb->resum_qmask + 1, + tb->nonresum_qmask + 1); + } } static void * __cpuinit mdesc_iterate_over_cpus(void *(*func)(struct mdesc_handle *, u64, int, void *), void *arg, cpumask_t *mask) diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index 99ba5baa9497..e5519870c3d9 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -17,6 +17,8 @@ #include <asm/processor.h> #include <asm/spitfire.h> +#include "entry.h" + #ifdef CONFIG_SPARC64 #include <linux/jump_label.h> @@ -68,12 +70,6 @@ void *module_alloc(unsigned long size) return ret; } -/* Free memory returned from module_core_alloc/module_init_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - /* Make generic code ignore STT_REGISTER dummy undefined symbols. */ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, @@ -107,17 +103,6 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, return 0; } -int apply_relocate(Elf_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - printk(KERN_ERR "module %s: non-ADD RELOCATION unsupported\n", - me->name); - return -ENOEXEC; -} - int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, unsigned int symindex, @@ -220,6 +205,29 @@ int apply_relocate_add(Elf_Shdr *sechdrs, } #ifdef CONFIG_SPARC64 +static void do_patch_sections(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs) +{ + const Elf_Shdr *s, *sun4v_1insn = NULL, *sun4v_2insn = NULL; + char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { + if (!strcmp(".sun4v_1insn_patch", secstrings + s->sh_name)) + sun4v_1insn = s; + if (!strcmp(".sun4v_2insn_patch", secstrings + s->sh_name)) + sun4v_2insn = s; + } + + if (sun4v_1insn && tlb_type == hypervisor) { + void *p = (void *) sun4v_1insn->sh_addr; + sun4v_patch_1insn_range(p, p + sun4v_1insn->sh_size); + } + if (sun4v_2insn && tlb_type == hypervisor) { + void *p = (void *) sun4v_2insn->sh_addr; + sun4v_patch_2insn_range(p, p + sun4v_2insn->sh_size); + } +} + int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) @@ -227,6 +235,8 @@ int module_finalize(const Elf_Ehdr *hdr, /* make jump label nops */ jump_label_apply_nops(me); + do_patch_sections(hdr, sechdrs); + /* Cheetah's I-cache is fully coherent. */ if (tlb_type == spitfire) { unsigned long va; @@ -239,15 +249,4 @@ int module_finalize(const Elf_Ehdr *hdr, return 0; } -#else -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - struct module *me) -{ - return 0; -} #endif /* CONFIG_SPARC64 */ - -void module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 300f810142f5..c76fe0b5bd94 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -10,7 +10,7 @@ #include <linux/init.h> #include <linux/percpu.h> #include <linux/nmi.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/kprobes.h> #include <linux/kernel_stat.h> #include <linux/reboot.h> diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c index a312af40ea84..4ee8ce0d5d8d 100644 --- a/arch/sparc/kernel/of_device_32.c +++ b/arch/sparc/kernel/of_device_32.c @@ -2,7 +2,6 @@ #include <linux/kernel.h> #include <linux/of.h> #include <linux/init.h> -#include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/slab.h> #include <linux/errno.h> diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c index 3bb2eace58cf..7a3be6f6737a 100644 --- a/arch/sparc/kernel/of_device_64.c +++ b/arch/sparc/kernel/of_device_64.c @@ -2,13 +2,14 @@ #include <linux/kernel.h> #include <linux/of.h> #include <linux/init.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/mod_devicetable.h> #include <linux/slab.h> #include <linux/errno.h> #include <linux/irq.h> #include <linux/of_device.h> #include <linux/of_platform.h> +#include <asm/spitfire.h> #include "of_device_common.h" diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c index cb15bbf8a201..de199bf0cb05 100644 --- a/arch/sparc/kernel/of_device_common.c +++ b/arch/sparc/kernel/of_device_common.c @@ -2,7 +2,7 @@ #include <linux/kernel.h> #include <linux/of.h> #include <linux/init.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/mod_devicetable.h> #include <linux/errno.h> #include <linux/irq.h> diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 713dc91020a6..31111e35281e 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -8,7 +8,7 @@ * with minor modifications, see there for credits. */ -#include <linux/module.h> +#include <linux/export.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/sched.h> @@ -230,7 +230,8 @@ static void pci_parse_of_addrs(struct platform_device *op, res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2]; } else if (i == dev->rom_base_reg) { res = &dev->resource[PCI_ROM_RESOURCE]; - flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE; + flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE + | IORESOURCE_SIZEALIGN; } else { printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i); continue; @@ -284,7 +285,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, dev->sysdata = node; dev->dev.parent = bus->bridge; dev->dev.bus = &pci_bus_type; - dev->dev.of_node = node; + dev->dev.of_node = of_node_get(node); dev->devfn = devfn; dev->multifunction = 0; /* maybe a lie? */ set_pcie_port_type(dev); @@ -820,11 +821,9 @@ static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struc unsigned long space_size, user_offset, user_size; if (mmap_state == pci_mmap_io) { - space_size = (pbm->io_space.end - - pbm->io_space.start) + 1; + space_size = resource_size(&pbm->io_space); } else { - space_size = (pbm->mem_space.end - - pbm->mem_space.start) + 1; + space_size = resource_size(&pbm->mem_space); } /* Make sure the request is in range. */ @@ -1021,12 +1020,6 @@ void arch_teardown_msi_irq(unsigned int irq) } #endif /* !(CONFIG_PCI_MSI) */ -struct device_node *pci_device_to_OF_node(struct pci_dev *pdev) -{ - return pdev->dev.of_node; -} -EXPORT_SYMBOL(pci_device_to_OF_node); - static void ali_sound_dma_hack(struct pci_dev *pdev, int set_bit) { struct pci_dev *ali_isa_bridge; diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c index d29a32fcc5e4..188f935276fd 100644 --- a/arch/sparc/kernel/pci_fire.c +++ b/arch/sparc/kernel/pci_fire.c @@ -7,6 +7,7 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/msi.h> +#include <linux/export.h> #include <linux/irq.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c index 86ae08d9b6ee..f4d29e15ce71 100644 --- a/arch/sparc/kernel/pci_psycho.c +++ b/arch/sparc/kernel/pci_psycho.c @@ -9,6 +9,7 @@ #include <linux/types.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index d1840dbdaa2f..3efaa4644d60 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -9,6 +9,7 @@ #include <linux/types.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index f030b02edddd..13d4aa20b5a5 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -8,6 +8,7 @@ #include <linux/pci.h> #include <linux/init.h> #include <linux/slab.h> +#include <linux/export.h> #include <linux/interrupt.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index b01a06e9ae4e..b272cda35a01 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -12,6 +12,7 @@ #include <linux/percpu.h> #include <linux/irq.h> #include <linux/msi.h> +#include <linux/export.h> #include <linux/log2.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index 948601a066ff..fcc148effaac 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -25,6 +25,7 @@ #include <linux/time.h> #include <linux/timex.h> #include <linux/interrupt.h> +#include <linux/export.h> #include <asm/irq.h> #include <asm/oplib.h> @@ -352,8 +353,8 @@ int __init pcic_probe(void) strcpy(pbm->prom_name, namebuf); { - extern volatile int t_nmi[1]; - extern int pcic_nmi_trap_patch[1]; + extern volatile int t_nmi[4]; + extern int pcic_nmi_trap_patch[4]; t_nmi[0] = pcic_nmi_trap_patch[0]; t_nmi[1] = pcic_nmi_trap_patch[1]; @@ -885,14 +886,6 @@ int pcibios_assign_resource(struct pci_dev *pdev, int resource) return -ENXIO; } -struct device_node *pci_device_to_OF_node(struct pci_dev *pdev) -{ - struct pcidev_cookie *pc = pdev->sysdata; - - return pc->prom_node; -} -EXPORT_SYMBOL(pci_device_to_OF_node); - /* * This probably belongs here rather than ioport.c because * we do not want this crud linked into SBus kernels. diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c index 8ac23e660080..a24072a49270 100644 --- a/arch/sparc/kernel/pcr.c +++ b/arch/sparc/kernel/pcr.c @@ -3,7 +3,7 @@ * Copyright (C) 2009 David S. Miller (davem@davemloft.net) */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/init.h> #include <linux/irq.h> @@ -13,6 +13,7 @@ #include <asm/pil.h> #include <asm/pcr.h> #include <asm/nmi.h> +#include <asm/spitfire.h> /* This code is shared between various users of the performance * counters. Users will be oprofile, pseudo-NMI watchdog, and the @@ -80,8 +81,11 @@ static void n2_pcr_write(u64 val) { unsigned long ret; - ret = sun4v_niagara2_setperf(HV_N2_PERF_SPARC_CTL, val); - if (ret != HV_EOK) + if (val & PCR_N2_HTRACE) { + ret = sun4v_niagara2_setperf(HV_N2_PERF_SPARC_CTL, val); + if (ret != HV_EOK) + write_pcr(val); + } else write_pcr(val); } @@ -106,6 +110,10 @@ static int __init register_perf_hsvc(void) perf_hsvc_group = HV_GRP_N2_CPU; break; + case SUN4V_CHIP_NIAGARA3: + perf_hsvc_group = HV_GRP_KT_CPU; + break; + default: return -ENODEV; } diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 2cb0e1c001e2..614da624330c 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -22,7 +22,7 @@ #include <asm/stacktrace.h> #include <asm/cpudata.h> #include <asm/uaccess.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/nmi.h> #include <asm/pcr.h> @@ -246,6 +246,20 @@ static const cache_map_t ultra3_cache_map = { [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, }, }, +[C(NODE)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, }; static const struct sparc_pmu ultra3_pmu = { @@ -361,6 +375,20 @@ static const cache_map_t niagara1_cache_map = { [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, }, }, +[C(NODE)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, }; static const struct sparc_pmu niagara1_pmu = { @@ -473,6 +501,20 @@ static const cache_map_t niagara2_cache_map = { [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, }, }, +[C(NODE)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, }; static const struct sparc_pmu niagara2_pmu = { @@ -1277,7 +1319,7 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self, if (!sparc_perf_event_set_period(event, hwc, idx)) continue; - if (perf_event_overflow(event, 1, &data, regs)) + if (perf_event_overflow(event, &data, regs)) sparc_pmu_stop(event, 0); } @@ -1301,7 +1343,8 @@ static bool __init supported_pmu(void) sparc_pmu = &niagara1_pmu; return true; } - if (!strcmp(sparc_pmu_type, "niagara2")) { + if (!strcmp(sparc_pmu_type, "niagara2") || + !strcmp(sparc_pmu_type, "niagara3")) { sparc_pmu = &niagara2_pmu; return true; } diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 6a585d393580..0e3202239ff5 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -11,6 +11,7 @@ #include <linux/pm.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/module.h> #include <asm/io.h> #include <asm/oplib.h> diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c index cb4c0f57c024..0d39075063b2 100644 --- a/arch/sparc/kernel/power.c +++ b/arch/sparc/kernel/power.c @@ -4,7 +4,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/reboot.h> diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index c8cc461ff75f..f793742eec2b 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -380,8 +380,7 @@ void flush_thread(void) #endif } - /* Now, this task is no longer a kernel thread. */ - current->thread.current_ds = USER_DS; + /* This task is no longer a kernel thread. */ if (current->thread.flags & SPARC_FLAG_KTHREAD) { current->thread.flags &= ~SPARC_FLAG_KTHREAD; diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index c158a95ec664..3739a06a76cb 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -12,7 +12,7 @@ #include <stdarg.h> #include <linux/errno.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/mm.h> @@ -368,9 +368,6 @@ void flush_thread(void) /* Clear FPU register state. */ t->fpsaved[0] = 0; - - if (get_thread_current_ds() != ASI_AIUS) - set_fs(USER_DS); } /* It's a bit more tricky when 64-bit tasks are involved... */ diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c index 5ce3d15a99b0..b51cbb9e87dc 100644 --- a/arch/sparc/kernel/prom_32.c +++ b/arch/sparc/kernel/prom_32.c @@ -20,7 +20,6 @@ #include <linux/string.h> #include <linux/mm.h> #include <linux/bootmem.h> -#include <linux/module.h> #include <asm/prom.h> #include <asm/oplib.h> diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c index 86597d9867fd..340c5b976d28 100644 --- a/arch/sparc/kernel/prom_64.c +++ b/arch/sparc/kernel/prom_64.c @@ -19,7 +19,6 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/mm.h> -#include <linux/module.h> #include <linux/memblock.h> #include <linux/of.h> diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c index ed25834328f4..46614807a57f 100644 --- a/arch/sparc/kernel/prom_common.c +++ b/arch/sparc/kernel/prom_common.c @@ -15,7 +15,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/errno.h> #include <linux/mutex.h> #include <linux/slab.h> diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c index ef89d3d69748..006a42dd2007 100644 --- a/arch/sparc/kernel/reboot.c +++ b/arch/sparc/kernel/reboot.c @@ -4,7 +4,7 @@ */ #include <linux/kernel.h> #include <linux/reboot.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/pm.h> #include <asm/system.h> diff --git a/arch/sparc/kernel/sbus.c b/arch/sparc/kernel/sbus.c index a161b9c77f05..1271b3a27d4e 100644 --- a/arch/sparc/kernel/sbus.c +++ b/arch/sparc/kernel/sbus.c @@ -9,6 +9,7 @@ #include <linux/mm.h> #include <linux/spinlock.h> #include <linux/slab.h> +#include <linux/export.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/of.h> diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index d26e1f6c717a..fe1e3fc31bc5 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -31,6 +31,7 @@ #include <linux/root_dev.h> #include <linux/cpu.h> #include <linux/kdebug.h> +#include <linux/export.h> #include <asm/system.h> #include <asm/io.h> @@ -137,7 +138,7 @@ static void __init process_switch(char c) prom_halt(); break; case 'p': - /* Just ignore, this behavior is now the default. */ + prom_early_console.flags &= ~CON_BOOT; break; default: printk("Unknown boot switch (-%c)\n", c); diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index c4dd0999da86..a854a1c240ff 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -29,6 +29,7 @@ #include <linux/interrupt.h> #include <linux/cpu.h> #include <linux/initrd.h> +#include <linux/module.h> #include <asm/system.h> #include <asm/io.h> @@ -46,6 +47,8 @@ #include <asm/mmu.h> #include <asm/ns87303.h> #include <asm/btext.h> +#include <asm/elf.h> +#include <asm/mdesc.h> #ifdef CONFIG_IP_PNP #include <net/ipconfig.h> @@ -103,7 +106,7 @@ static void __init process_switch(char c) prom_halt(); break; case 'p': - /* Just ignore, this behavior is now the default. */ + prom_early_console.flags &= ~CON_BOOT; break; case 'P': /* Force UltraSPARC-III P-Cache on. */ @@ -231,44 +234,88 @@ void __init per_cpu_patch(void) } } -void __init sun4v_patch(void) +void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *start, + struct sun4v_1insn_patch_entry *end) { - extern void sun4v_hvapi_init(void); - struct sun4v_1insn_patch_entry *p1; - struct sun4v_2insn_patch_entry *p2; - - if (tlb_type != hypervisor) - return; + while (start < end) { + unsigned long addr = start->addr; - p1 = &__sun4v_1insn_patch; - while (p1 < &__sun4v_1insn_patch_end) { - unsigned long addr = p1->addr; - - *(unsigned int *) (addr + 0) = p1->insn; + *(unsigned int *) (addr + 0) = start->insn; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - p1++; + start++; } +} - p2 = &__sun4v_2insn_patch; - while (p2 < &__sun4v_2insn_patch_end) { - unsigned long addr = p2->addr; +void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *start, + struct sun4v_2insn_patch_entry *end) +{ + while (start < end) { + unsigned long addr = start->addr; - *(unsigned int *) (addr + 0) = p2->insns[0]; + *(unsigned int *) (addr + 0) = start->insns[0]; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - *(unsigned int *) (addr + 4) = p2->insns[1]; + *(unsigned int *) (addr + 4) = start->insns[1]; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 4)); - p2++; + start++; } +} + +void __init sun4v_patch(void) +{ + extern void sun4v_hvapi_init(void); + + if (tlb_type != hypervisor) + return; + + sun4v_patch_1insn_range(&__sun4v_1insn_patch, + &__sun4v_1insn_patch_end); + + sun4v_patch_2insn_range(&__sun4v_2insn_patch, + &__sun4v_2insn_patch_end); sun4v_hvapi_init(); } +static void __init popc_patch(void) +{ + struct popc_3insn_patch_entry *p3; + struct popc_6insn_patch_entry *p6; + + p3 = &__popc_3insn_patch; + while (p3 < &__popc_3insn_patch_end) { + unsigned long i, addr = p3->addr; + + for (i = 0; i < 3; i++) { + *(unsigned int *) (addr + (i * 4)) = p3->insns[i]; + wmb(); + __asm__ __volatile__("flush %0" + : : "r" (addr + (i * 4))); + } + + p3++; + } + + p6 = &__popc_6insn_patch; + while (p6 < &__popc_6insn_patch_end) { + unsigned long i, addr = p6->addr; + + for (i = 0; i < 6; i++) { + *(unsigned int *) (addr + (i * 4)) = p6->insns[i]; + wmb(); + __asm__ __volatile__("flush %0" + : : "r" (addr + (i * 4))); + } + + p6++; + } +} + #ifdef CONFIG_SMP void __init boot_cpu_id_too_large(int cpu) { @@ -278,6 +325,168 @@ void __init boot_cpu_id_too_large(int cpu) } #endif +/* On Ultra, we support all of the v8 capabilities. */ +unsigned long sparc64_elf_hwcap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | + HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | + HWCAP_SPARC_V9); +EXPORT_SYMBOL(sparc64_elf_hwcap); + +static const char *hwcaps[] = { + "flush", "stbar", "swap", "muldiv", "v9", + "ultra3", "blkinit", "n2", + + /* These strings are as they appear in the machine description + * 'hwcap-list' property for cpu nodes. + */ + "mul32", "div32", "fsmuld", "v8plus", "popc", "vis", "vis2", + "ASIBlkInit", "fmaf", "vis3", "hpc", "random", "trans", "fjfmau", + "ima", "cspare", +}; + +void cpucap_info(struct seq_file *m) +{ + unsigned long caps = sparc64_elf_hwcap; + int i, printed = 0; + + seq_puts(m, "cpucaps\t\t: "); + for (i = 0; i < ARRAY_SIZE(hwcaps); i++) { + unsigned long bit = 1UL << i; + if (caps & bit) { + seq_printf(m, "%s%s", + printed ? "," : "", hwcaps[i]); + printed++; + } + } + seq_putc(m, '\n'); +} + +static void __init report_hwcaps(unsigned long caps) +{ + int i, printed = 0; + + printk(KERN_INFO "CPU CAPS: ["); + for (i = 0; i < ARRAY_SIZE(hwcaps); i++) { + unsigned long bit = 1UL << i; + if (caps & bit) { + printk(KERN_CONT "%s%s", + printed ? "," : "", hwcaps[i]); + if (++printed == 8) { + printk(KERN_CONT "]\n"); + printk(KERN_INFO "CPU CAPS: ["); + printed = 0; + } + } + } + printk(KERN_CONT "]\n"); +} + +static unsigned long __init mdesc_cpu_hwcap_list(void) +{ + struct mdesc_handle *hp; + unsigned long caps = 0; + const char *prop; + int len; + u64 pn; + + hp = mdesc_grab(); + if (!hp) + return 0; + + pn = mdesc_node_by_name(hp, MDESC_NODE_NULL, "cpu"); + if (pn == MDESC_NODE_NULL) + goto out; + + prop = mdesc_get_property(hp, pn, "hwcap-list", &len); + if (!prop) + goto out; + + while (len) { + int i, plen; + + for (i = 0; i < ARRAY_SIZE(hwcaps); i++) { + unsigned long bit = 1UL << i; + + if (!strcmp(prop, hwcaps[i])) { + caps |= bit; + break; + } + } + + plen = strlen(prop) + 1; + prop += plen; + len -= plen; + } + +out: + mdesc_release(hp); + return caps; +} + +/* This yields a mask that user programs can use to figure out what + * instruction set this cpu supports. + */ +static void __init init_sparc64_elf_hwcap(void) +{ + unsigned long cap = sparc64_elf_hwcap; + unsigned long mdesc_caps; + + if (tlb_type == cheetah || tlb_type == cheetah_plus) + cap |= HWCAP_SPARC_ULTRA3; + else if (tlb_type == hypervisor) { + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + cap |= HWCAP_SPARC_BLKINIT; + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + cap |= HWCAP_SPARC_N2; + } + + cap |= (AV_SPARC_MUL32 | AV_SPARC_DIV32 | AV_SPARC_V8PLUS); + + mdesc_caps = mdesc_cpu_hwcap_list(); + if (!mdesc_caps) { + if (tlb_type == spitfire) + cap |= AV_SPARC_VIS; + if (tlb_type == cheetah || tlb_type == cheetah_plus) + cap |= AV_SPARC_VIS | AV_SPARC_VIS2; + if (tlb_type == cheetah_plus) { + unsigned long impl, ver; + + __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); + impl = ((ver >> 32) & 0xffff); + if (impl == PANTHER_IMPL) + cap |= AV_SPARC_POPC; + } + if (tlb_type == hypervisor) { + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1) + cap |= AV_SPARC_ASI_BLK_INIT; + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 | + AV_SPARC_ASI_BLK_INIT | + AV_SPARC_POPC); + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC | + AV_SPARC_FMAF); + } + } + sparc64_elf_hwcap = cap | mdesc_caps; + + report_hwcaps(sparc64_elf_hwcap); + + if (sparc64_elf_hwcap & AV_SPARC_POPC) + popc_patch(); +} + void __init setup_arch(char **cmdline_p) { /* Initialize PROM console and command line. */ @@ -337,6 +546,7 @@ void __init setup_arch(char **cmdline_p) init_cur_cpu_trap(current_thread_info()); paging_init(); + init_sparc64_elf_hwcap(); } extern int stop_a_enabled; diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 75fad425e249..023b8860dc97 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -29,6 +29,8 @@ #include <asm/visasm.h> #include <asm/compat_signal.h> +#include "sigutil.h" + #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) /* This magic should be in g_upper[0] for all upper parts @@ -44,14 +46,14 @@ typedef struct { struct signal_frame32 { struct sparc_stackf32 ss; __siginfo32_t info; - /* __siginfo_fpu32_t * */ u32 fpu_save; + /* __siginfo_fpu_t * */ u32 fpu_save; unsigned int insns[2]; unsigned int extramask[_COMPAT_NSIG_WORDS - 1]; unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */ /* Only valid if (info.si_regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */ siginfo_extra_v8plus_t v8plus; - __siginfo_fpu_t fpu_state; -}; + /* __siginfo_rwin_t * */u32 rwin_save; +} __attribute__((aligned(8))); typedef struct compat_siginfo{ int si_signo; @@ -110,18 +112,14 @@ struct rt_signal_frame32 { compat_siginfo_t info; struct pt_regs32 regs; compat_sigset_t mask; - /* __siginfo_fpu32_t * */ u32 fpu_save; + /* __siginfo_fpu_t * */ u32 fpu_save; unsigned int insns[2]; stack_t32 stack; unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */ /* Only valid if (regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */ siginfo_extra_v8plus_t v8plus; - __siginfo_fpu_t fpu_state; -}; - -/* Align macros */ -#define SF_ALIGNEDSZ (((sizeof(struct signal_frame32) + 15) & (~15))) -#define RT_ALIGNEDSZ (((sizeof(struct rt_signal_frame32) + 15) & (~15))) + /* __siginfo_rwin_t * */u32 rwin_save; +} __attribute__((aligned(8))); int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) { @@ -192,30 +190,13 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) return 0; } -static int restore_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err; - - err = __get_user(fprs, &fpu->si_fprs); - fprs_write(0); - regs->tstate &= ~TSTATE_PEF; - if (fprs & FPRS_DL) - err |= copy_from_user(fpregs, &fpu->si_float_regs[0], (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_from_user(fpregs+16, &fpu->si_float_regs[32], (sizeof(unsigned int) * 32)); - err |= __get_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __get_user(current_thread_info()->gsr[0], &fpu->si_gsr); - current_thread_info()->fpsaved[0] |= fprs; - return err; -} - void do_sigreturn32(struct pt_regs *regs) { struct signal_frame32 __user *sf; + compat_uptr_t fpu_save; + compat_uptr_t rwin_save; unsigned int psr; - unsigned pc, npc, fpu_save; + unsigned pc, npc; sigset_t set; unsigned seta[_COMPAT_NSIG_WORDS]; int err, i; @@ -273,8 +254,13 @@ void do_sigreturn32(struct pt_regs *regs) pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state32(regs, &sf->fpu_state); + if (!err && fpu_save) + err |= restore_fpu_state(regs, compat_ptr(fpu_save)); + err |= __get_user(rwin_save, &sf->rwin_save); + if (!err && rwin_save) { + if (restore_rwin_state(compat_ptr(rwin_save))) + goto segv; + } err |= __get_user(seta[0], &sf->info.si_mask); err |= copy_from_user(seta+1, &sf->extramask, (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); @@ -287,10 +273,7 @@ void do_sigreturn32(struct pt_regs *regs) case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32); } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: @@ -300,7 +283,9 @@ segv: asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) { struct rt_signal_frame32 __user *sf; - unsigned int psr, pc, npc, fpu_save, u_ss_sp; + unsigned int psr, pc, npc, u_ss_sp; + compat_uptr_t fpu_save; + compat_uptr_t rwin_save; mm_segment_t old_fs; sigset_t set; compat_sigset_t seta; @@ -359,8 +344,8 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state32(regs, &sf->fpu_state); + if (!err && fpu_save) + err |= restore_fpu_state(regs, compat_ptr(fpu_save)); err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t)); err |= __get_user(u_ss_sp, &sf->stack.ss_sp); st.ss_sp = compat_ptr(u_ss_sp); @@ -376,6 +361,12 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) do_sigaltstack((stack_t __user *) &st, NULL, (unsigned long)sf); set_fs(old_fs); + err |= __get_user(rwin_save, &sf->rwin_save); + if (!err && rwin_save) { + if (restore_rwin_state(compat_ptr(rwin_save))) + goto segv; + } + switch (_NSIG_WORDS) { case 4: set.sig[3] = seta.sig[6] + (((long)seta.sig[7]) << 32); case 3: set.sig[2] = seta.sig[4] + (((long)seta.sig[5]) << 32); @@ -383,10 +374,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); @@ -433,26 +421,6 @@ static void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, uns return (void __user *) sp; } -static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err = 0; - - fprs = current_thread_info()->fpsaved[0]; - if (fprs & FPRS_DL) - err |= copy_to_user(&fpu->si_float_regs[0], fpregs, - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_to_user(&fpu->si_float_regs[32], fpregs+16, - (sizeof(unsigned int) * 32)); - err |= __put_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __put_user(current_thread_info()->gsr[0], &fpu->si_gsr); - err |= __put_user(fprs, &fpu->si_fprs); - - return err; -} - /* The I-cache flush instruction only works in the primary ASI, which * right now is the nucleus, aka. kernel space. * @@ -515,18 +483,23 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, int signo, sigset_t *oldset) { struct signal_frame32 __user *sf; + int i, err, wsaved; + void __user *tail; int sigframe_size; u32 psr; - int i, err; unsigned int seta[_COMPAT_NSIG_WORDS]; /* 1. Make sure everything is clean */ synchronize_user_stack(); save_and_clear_fpu(); - sigframe_size = SF_ALIGNEDSZ; - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); + wsaved = get_thread_wsaved(); + + sigframe_size = sizeof(*sf); + if (current_thread_info()->fpsaved[0] & FPRS_FEF) + sigframe_size += sizeof(__siginfo_fpu_t); + if (wsaved) + sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct signal_frame32 __user *) get_sigframe(&ka->sa, regs, sigframe_size); @@ -534,8 +507,7 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, if (invalid_frame_pointer(sf, sigframe_size)) goto sigill; - if (get_thread_wsaved() != 0) - goto sigill; + tail = (sf + 1); /* 2. Save the current process state */ if (test_thread_flag(TIF_32BIT)) { @@ -560,11 +532,22 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, &sf->v8plus.asi); if (psr & PSR_EF) { - err |= save_fpu_state32(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); + __siginfo_fpu_t __user *fp = tail; + tail += sizeof(*fp); + err |= save_fpu_state(regs, fp); + err |= __put_user((u64)fp, &sf->fpu_save); } else { err |= __put_user(0, &sf->fpu_save); } + if (wsaved) { + __siginfo_rwin_t __user *rwp = tail; + tail += sizeof(*rwp); + err |= save_rwin_state(wsaved, rwp); + err |= __put_user((u64)rwp, &sf->rwin_save); + set_thread_wsaved(0); + } else { + err |= __put_user(0, &sf->rwin_save); + } switch (_NSIG_WORDS) { case 4: seta[7] = (oldset->sig[3] >> 32); @@ -580,10 +563,21 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, err |= __copy_to_user(sf->extramask, seta + 1, (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); - err |= copy_in_user((u32 __user *)sf, - (u32 __user *)(regs->u_regs[UREG_FP]), - sizeof(struct reg_window32)); - + if (!wsaved) { + err |= copy_in_user((u32 __user *)sf, + (u32 __user *)(regs->u_regs[UREG_FP]), + sizeof(struct reg_window32)); + } else { + struct reg_window *rp; + + rp = ¤t_thread_info()->reg_window[wsaved - 1]; + for (i = 0; i < 8; i++) + err |= __put_user(rp->locals[i], &sf->ss.locals[i]); + for (i = 0; i < 6; i++) + err |= __put_user(rp->ins[i], &sf->ss.ins[i]); + err |= __put_user(rp->ins[6], &sf->ss.fp); + err |= __put_user(rp->ins[7], &sf->ss.callers_pc); + } if (err) goto sigsegv; @@ -613,7 +607,6 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0x91d02010, &sf->insns[1]); /*t 0x10*/ if (err) goto sigsegv; - flush_signal_insns(address); } return 0; @@ -632,18 +625,23 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, siginfo_t *info) { struct rt_signal_frame32 __user *sf; + int i, err, wsaved; + void __user *tail; int sigframe_size; u32 psr; - int i, err; compat_sigset_t seta; /* 1. Make sure everything is clean */ synchronize_user_stack(); save_and_clear_fpu(); - sigframe_size = RT_ALIGNEDSZ; - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); + wsaved = get_thread_wsaved(); + + sigframe_size = sizeof(*sf); + if (current_thread_info()->fpsaved[0] & FPRS_FEF) + sigframe_size += sizeof(__siginfo_fpu_t); + if (wsaved) + sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame32 __user *) get_sigframe(&ka->sa, regs, sigframe_size); @@ -651,8 +649,7 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, if (invalid_frame_pointer(sf, sigframe_size)) goto sigill; - if (get_thread_wsaved() != 0) - goto sigill; + tail = (sf + 1); /* 2. Save the current process state */ if (test_thread_flag(TIF_32BIT)) { @@ -677,11 +674,22 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, &sf->v8plus.asi); if (psr & PSR_EF) { - err |= save_fpu_state32(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); + __siginfo_fpu_t __user *fp = tail; + tail += sizeof(*fp); + err |= save_fpu_state(regs, fp); + err |= __put_user((u64)fp, &sf->fpu_save); } else { err |= __put_user(0, &sf->fpu_save); } + if (wsaved) { + __siginfo_rwin_t __user *rwp = tail; + tail += sizeof(*rwp); + err |= save_rwin_state(wsaved, rwp); + err |= __put_user((u64)rwp, &sf->rwin_save); + set_thread_wsaved(0); + } else { + err |= __put_user(0, &sf->rwin_save); + } /* Update the siginfo structure. */ err |= copy_siginfo_to_user32(&sf->info, info); @@ -703,9 +711,21 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, } err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t)); - err |= copy_in_user((u32 __user *)sf, - (u32 __user *)(regs->u_regs[UREG_FP]), - sizeof(struct reg_window32)); + if (!wsaved) { + err |= copy_in_user((u32 __user *)sf, + (u32 __user *)(regs->u_regs[UREG_FP]), + sizeof(struct reg_window32)); + } else { + struct reg_window *rp; + + rp = ¤t_thread_info()->reg_window[wsaved - 1]; + for (i = 0; i < 8; i++) + err |= __put_user(rp->locals[i], &sf->ss.locals[i]); + for (i = 0; i < 6; i++) + err |= __put_user(rp->ins[i], &sf->ss.ins[i]); + err |= __put_user(rp->ins[6], &sf->ss.fp); + err |= __put_user(rp->ins[7], &sf->ss.callers_pc); + } if (err) goto sigsegv; @@ -756,6 +776,7 @@ static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; if (ka->sa.sa_flags & SA_SIGINFO) @@ -766,12 +787,10 @@ static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka, if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); @@ -803,21 +822,23 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -void do_signal32(sigset_t *oldset, struct pt_regs * regs, - int restart_syscall, unsigned long orig_i0) +void do_signal32(sigset_t *oldset, struct pt_regs * regs) { struct k_sigaction ka; + unsigned long orig_i0; + int restart_syscall; siginfo_t info; int signr; signr = get_signal_to_deliver(&info, &ka, regs, NULL); - /* If the debugger messes with the program counter, it clears - * the "in syscall" bit, directing us to not perform a syscall - * restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + orig_i0 = 0; + if (pt_regs_is_syscall(regs) && + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } if (signr > 0) { if (restart_syscall) @@ -855,7 +876,7 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs, */ if (current_thread_info()->status & TS_RESTORE_SIGMASK) { current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 5e5c5fd03783..d54c6e53aba0 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -26,6 +26,8 @@ #include <asm/pgtable.h> #include <asm/cacheflush.h> /* flush_sig_insns */ +#include "sigutil.h" + #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) extern void fpsave(unsigned long *fpregs, unsigned long *fsr, @@ -39,8 +41,8 @@ struct signal_frame { unsigned long insns[2] __attribute__ ((aligned (8))); unsigned int extramask[_NSIG_WORDS - 1]; unsigned int extra_size; /* Should be 0 */ - __siginfo_fpu_t fpu_state; -}; + __siginfo_rwin_t __user *rwin_save; +} __attribute__((aligned(8))); struct rt_signal_frame { struct sparc_stackf ss; @@ -51,8 +53,8 @@ struct rt_signal_frame { unsigned int insns[2]; stack_t stack; unsigned int extra_size; /* Should be 0 */ - __siginfo_fpu_t fpu_state; -}; + __siginfo_rwin_t __user *rwin_save; +} __attribute__((aligned(8))); /* Align macros */ #define SF_ALIGNEDSZ (((sizeof(struct signal_frame) + 7) & (~7))) @@ -60,12 +62,13 @@ struct rt_signal_frame { static int _sigpause_common(old_sigset_t set) { - set &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); + sigset_t blocked; + current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, set); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + + set &= _BLOCKABLE; + siginitset(&blocked, set); + set_current_blocked(&blocked); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -79,43 +82,13 @@ asmlinkage int sys_sigsuspend(old_sigset_t set) return _sigpause_common(set); } -static inline int -restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - int err; -#ifdef CONFIG_SMP - if (test_tsk_thread_flag(current, TIF_USEDFPU)) - regs->psr &= ~PSR_EF; -#else - if (current == last_task_used_math) { - last_task_used_math = NULL; - regs->psr &= ~PSR_EF; - } -#endif - set_used_math(); - clear_tsk_thread_flag(current, TIF_USEDFPU); - - if (!access_ok(VERIFY_READ, fpu, sizeof(*fpu))) - return -EFAULT; - - err = __copy_from_user(¤t->thread.float_regs[0], &fpu->si_float_regs[0], - (sizeof(unsigned long) * 32)); - err |= __get_user(current->thread.fsr, &fpu->si_fsr); - err |= __get_user(current->thread.fpqdepth, &fpu->si_fpqdepth); - if (current->thread.fpqdepth != 0) - err |= __copy_from_user(¤t->thread.fpqueue[0], - &fpu->si_fpqueue[0], - ((sizeof(unsigned long) + - (sizeof(unsigned long *)))*16)); - return err; -} - asmlinkage void do_sigreturn(struct pt_regs *regs) { struct signal_frame __user *sf; unsigned long up_psr, pc, npc; sigset_t set; __siginfo_fpu_t __user *fpu_save; + __siginfo_rwin_t __user *rwin_save; int err; /* Always make any pending restarted system calls return -EINTR */ @@ -150,9 +123,11 @@ asmlinkage void do_sigreturn(struct pt_regs *regs) pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) err |= restore_fpu_state(regs, fpu_save); + err |= __get_user(rwin_save, &sf->rwin_save); + if (rwin_save) + err |= restore_rwin_state(rwin_save); /* This is pretty much atomic, no amount locking would prevent * the races which exist anyways. @@ -165,10 +140,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs) goto segv_and_exit; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv_and_exit: @@ -180,6 +152,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) struct rt_signal_frame __user *sf; unsigned int psr, pc, npc; __siginfo_fpu_t __user *fpu_save; + __siginfo_rwin_t __user *rwin_save; mm_segment_t old_fs; sigset_t set; stack_t st; @@ -207,8 +180,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); - - if (fpu_save) + if (!err && fpu_save) err |= restore_fpu_state(regs, fpu_save); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); @@ -228,11 +200,14 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) do_sigaltstack((const stack_t __user *) &st, NULL, (unsigned long)sf); set_fs(old_fs); + err |= __get_user(rwin_save, &sf->rwin_save); + if (!err && rwin_save) { + if (restore_rwin_state(rwin_save)) + goto segv; + } + sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); @@ -280,53 +255,23 @@ static inline void __user *get_sigframe(struct sigaction *sa, struct pt_regs *re return (void __user *) sp; } -static inline int -save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - int err = 0; -#ifdef CONFIG_SMP - if (test_tsk_thread_flag(current, TIF_USEDFPU)) { - put_psr(get_psr() | PSR_EF); - fpsave(¤t->thread.float_regs[0], ¤t->thread.fsr, - ¤t->thread.fpqueue[0], ¤t->thread.fpqdepth); - regs->psr &= ~(PSR_EF); - clear_tsk_thread_flag(current, TIF_USEDFPU); - } -#else - if (current == last_task_used_math) { - put_psr(get_psr() | PSR_EF); - fpsave(¤t->thread.float_regs[0], ¤t->thread.fsr, - ¤t->thread.fpqueue[0], ¤t->thread.fpqdepth); - last_task_used_math = NULL; - regs->psr &= ~(PSR_EF); - } -#endif - err |= __copy_to_user(&fpu->si_float_regs[0], - ¤t->thread.float_regs[0], - (sizeof(unsigned long) * 32)); - err |= __put_user(current->thread.fsr, &fpu->si_fsr); - err |= __put_user(current->thread.fpqdepth, &fpu->si_fpqdepth); - if (current->thread.fpqdepth != 0) - err |= __copy_to_user(&fpu->si_fpqueue[0], - ¤t->thread.fpqueue[0], - ((sizeof(unsigned long) + - (sizeof(unsigned long *)))*16)); - clear_used_math(); - return err; -} - static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, int signo, sigset_t *oldset) { struct signal_frame __user *sf; - int sigframe_size, err; + int sigframe_size, err, wsaved; + void __user *tail; /* 1. Make sure everything is clean */ synchronize_user_stack(); - sigframe_size = SF_ALIGNEDSZ; - if (!used_math()) - sigframe_size -= sizeof(__siginfo_fpu_t); + wsaved = current_thread_info()->w_saved; + + sigframe_size = sizeof(*sf); + if (used_math()) + sigframe_size += sizeof(__siginfo_fpu_t); + if (wsaved) + sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct signal_frame __user *) get_sigframe(&ka->sa, regs, sigframe_size); @@ -334,8 +279,7 @@ static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, if (invalid_frame_pointer(sf, sigframe_size)) goto sigill_and_return; - if (current_thread_info()->w_saved != 0) - goto sigill_and_return; + tail = sf + 1; /* 2. Save the current process state */ err = __copy_to_user(&sf->info.si_regs, regs, sizeof(struct pt_regs)); @@ -343,17 +287,34 @@ static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0, &sf->extra_size); if (used_math()) { - err |= save_fpu_state(regs, &sf->fpu_state); - err |= __put_user(&sf->fpu_state, &sf->fpu_save); + __siginfo_fpu_t __user *fp = tail; + tail += sizeof(*fp); + err |= save_fpu_state(regs, fp); + err |= __put_user(fp, &sf->fpu_save); } else { err |= __put_user(0, &sf->fpu_save); } + if (wsaved) { + __siginfo_rwin_t __user *rwp = tail; + tail += sizeof(*rwp); + err |= save_rwin_state(wsaved, rwp); + err |= __put_user(rwp, &sf->rwin_save); + } else { + err |= __put_user(0, &sf->rwin_save); + } err |= __put_user(oldset->sig[0], &sf->info.si_mask); err |= __copy_to_user(sf->extramask, &oldset->sig[1], (_NSIG_WORDS - 1) * sizeof(unsigned int)); - err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP], - sizeof(struct reg_window32)); + if (!wsaved) { + err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP], + sizeof(struct reg_window32)); + } else { + struct reg_window32 *rp; + + rp = ¤t_thread_info()->reg_window[wsaved - 1]; + err |= __copy_to_user(sf, rp, sizeof(struct reg_window32)); + } if (err) goto sigsegv; @@ -399,21 +360,24 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, int signo, sigset_t *oldset, siginfo_t *info) { struct rt_signal_frame __user *sf; - int sigframe_size; + int sigframe_size, wsaved; + void __user *tail; unsigned int psr; int err; synchronize_user_stack(); - sigframe_size = RT_ALIGNEDSZ; - if (!used_math()) - sigframe_size -= sizeof(__siginfo_fpu_t); + wsaved = current_thread_info()->w_saved; + sigframe_size = sizeof(*sf); + if (used_math()) + sigframe_size += sizeof(__siginfo_fpu_t); + if (wsaved) + sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame __user *) get_sigframe(&ka->sa, regs, sigframe_size); if (invalid_frame_pointer(sf, sigframe_size)) goto sigill; - if (current_thread_info()->w_saved != 0) - goto sigill; + tail = sf + 1; err = __put_user(regs->pc, &sf->regs.pc); err |= __put_user(regs->npc, &sf->regs.npc); err |= __put_user(regs->y, &sf->regs.y); @@ -425,11 +389,21 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0, &sf->extra_size); if (psr & PSR_EF) { - err |= save_fpu_state(regs, &sf->fpu_state); - err |= __put_user(&sf->fpu_state, &sf->fpu_save); + __siginfo_fpu_t *fp = tail; + tail += sizeof(*fp); + err |= save_fpu_state(regs, fp); + err |= __put_user(fp, &sf->fpu_save); } else { err |= __put_user(0, &sf->fpu_save); } + if (wsaved) { + __siginfo_rwin_t *rwp = tail; + tail += sizeof(*rwp); + err |= save_rwin_state(wsaved, rwp); + err |= __put_user(rwp, &sf->rwin_save); + } else { + err |= __put_user(0, &sf->rwin_save); + } err |= __copy_to_user(&sf->mask, &oldset->sig[0], sizeof(sigset_t)); /* Setup sigaltstack */ @@ -437,8 +411,15 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); - err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP], - sizeof(struct reg_window32)); + if (!wsaved) { + err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP], + sizeof(struct reg_window32)); + } else { + struct reg_window32 *rp; + + rp = ¤t_thread_info()->reg_window[wsaved - 1]; + err |= __copy_to_user(sf, rp, sizeof(struct reg_window32)); + } err |= copy_siginfo_to_user(&sf->info, info); @@ -484,6 +465,7 @@ static inline int handle_signal(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; if (ka->sa.sa_flags & SA_SIGINFO) @@ -494,12 +476,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka, if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked, signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); @@ -539,10 +519,26 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) siginfo_t info; int signr; + /* It's a lot of work and synchronization to add a new ptrace + * register for GDB to save and restore in order to get + * orig_i0 correct for syscall restarts when debugging. + * + * Although it should be the case that most of the global + * registers are volatile across a system call, glibc already + * depends upon that fact that we preserve them. So we can't + * just use any global register to save away the orig_i0 value. + * + * In particular %g2, %g3, %g4, and %g5 are all assumed to be + * preserved across a system call trap by various pieces of + * code in glibc. + * + * %g7 is used as the "thread register". %g6 is not used in + * any fixed manner. %g6 is used as a scratch register and + * a compiler temporary, but it's value is never used across + * a system call. Therefore %g6 is usable for orig_i0 storage. + */ if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) - restart_syscall = 1; - else - restart_syscall = 0; + regs->u_regs[UREG_G6] = orig_i0; if (test_thread_flag(TIF_RESTORE_SIGMASK)) oldset = ¤t->saved_sigmask; @@ -555,8 +551,12 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) * the software "in syscall" bit, directing us to not perform * a syscall restart. */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } + if (signr > 0) { if (restart_syscall) @@ -595,7 +595,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) */ if (test_thread_flag(TIF_RESTORE_SIGMASK)) { clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 006fe4515886..f0836cd0e2f2 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -34,6 +34,7 @@ #include "entry.h" #include "systbls.h" +#include "sigutil.h" #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) @@ -69,10 +70,7 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs) goto do_sigsegv; } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); } if (test_thread_flag(TIF_32BIT)) { pc &= 0xffffffff; @@ -236,17 +234,18 @@ struct rt_signal_frame { __siginfo_fpu_t __user *fpu_save; stack_t stack; sigset_t mask; - __siginfo_fpu_t fpu_state; + __siginfo_rwin_t *rwin_save; }; static long _sigpause_common(old_sigset_t set) { - set &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); + sigset_t blocked; + current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, set); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + + set &= _BLOCKABLE; + siginitset(&blocked, set); + set_current_blocked(&blocked); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -266,33 +265,12 @@ asmlinkage long sys_sigsuspend(old_sigset_t set) return _sigpause_common(set); } -static inline int -restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err; - - err = __get_user(fprs, &fpu->si_fprs); - fprs_write(0); - regs->tstate &= ~TSTATE_PEF; - if (fprs & FPRS_DL) - err |= copy_from_user(fpregs, &fpu->si_float_regs[0], - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_from_user(fpregs+16, &fpu->si_float_regs[32], - (sizeof(unsigned int) * 32)); - err |= __get_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __get_user(current_thread_info()->gsr[0], &fpu->si_gsr); - current_thread_info()->fpsaved[0] |= fprs; - return err; -} - void do_rt_sigreturn(struct pt_regs *regs) { struct rt_signal_frame __user *sf; unsigned long tpc, tnpc, tstate; __siginfo_fpu_t __user *fpu_save; + __siginfo_rwin_t __user *rwin_save; sigset_t set; int err; @@ -325,8 +303,8 @@ void do_rt_sigreturn(struct pt_regs *regs) regs->tstate |= (tstate & (TSTATE_ASI | TSTATE_ICC | TSTATE_XCC)); err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state(regs, &sf->fpu_state); + if (!err && fpu_save) + err |= restore_fpu_state(regs, fpu_save); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf); @@ -334,6 +312,12 @@ void do_rt_sigreturn(struct pt_regs *regs) if (err) goto segv; + err |= __get_user(rwin_save, &sf->rwin_save); + if (!err && rwin_save) { + if (restore_rwin_state(rwin_save)) + goto segv; + } + regs->tpc = tpc; regs->tnpc = tnpc; @@ -341,44 +325,20 @@ void do_rt_sigreturn(struct pt_regs *regs) pt_regs_clear_syscall(regs); sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); } /* Checks if the fp is valid */ -static int invalid_frame_pointer(void __user *fp, int fplen) +static int invalid_frame_pointer(void __user *fp) { if (((unsigned long) fp) & 15) return 1; return 0; } -static inline int -save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err = 0; - - fprs = current_thread_info()->fpsaved[0]; - if (fprs & FPRS_DL) - err |= copy_to_user(&fpu->si_float_regs[0], fpregs, - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_to_user(&fpu->si_float_regs[32], fpregs+16, - (sizeof(unsigned int) * 32)); - err |= __put_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __put_user(current_thread_info()->gsr[0], &fpu->si_gsr); - err |= __put_user(fprs, &fpu->si_fprs); - - return err; -} - static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, unsigned long framesize) { unsigned long sp = regs->u_regs[UREG_FP] + STACK_BIAS; @@ -414,34 +374,48 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, int signo, sigset_t *oldset, siginfo_t *info) { struct rt_signal_frame __user *sf; - int sigframe_size, err; + int wsaved, err, sf_size; + void __user *tail; /* 1. Make sure everything is clean */ synchronize_user_stack(); save_and_clear_fpu(); - sigframe_size = sizeof(struct rt_signal_frame); - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); + wsaved = get_thread_wsaved(); + sf_size = sizeof(struct rt_signal_frame); + if (current_thread_info()->fpsaved[0] & FPRS_FEF) + sf_size += sizeof(__siginfo_fpu_t); + if (wsaved) + sf_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame __user *) - get_sigframe(ka, regs, sigframe_size); - - if (invalid_frame_pointer (sf, sigframe_size)) - goto sigill; + get_sigframe(ka, regs, sf_size); - if (get_thread_wsaved() != 0) + if (invalid_frame_pointer (sf)) goto sigill; + tail = (sf + 1); + /* 2. Save the current process state */ err = copy_to_user(&sf->regs, regs, sizeof (*regs)); if (current_thread_info()->fpsaved[0] & FPRS_FEF) { - err |= save_fpu_state(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); + __siginfo_fpu_t __user *fpu_save = tail; + tail += sizeof(__siginfo_fpu_t); + err |= save_fpu_state(regs, fpu_save); + err |= __put_user((u64)fpu_save, &sf->fpu_save); } else { err |= __put_user(0, &sf->fpu_save); } + if (wsaved) { + __siginfo_rwin_t __user *rwin_save = tail; + tail += sizeof(__siginfo_rwin_t); + err |= save_rwin_state(wsaved, rwin_save); + err |= __put_user((u64)rwin_save, &sf->rwin_save); + set_thread_wsaved(0); + } else { + err |= __put_user(0, &sf->rwin_save); + } /* Setup sigaltstack */ err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); @@ -450,10 +424,17 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= copy_to_user(&sf->mask, oldset, sizeof(sigset_t)); - err |= copy_in_user((u64 __user *)sf, - (u64 __user *)(regs->u_regs[UREG_FP]+STACK_BIAS), - sizeof(struct reg_window)); + if (!wsaved) { + err |= copy_in_user((u64 __user *)sf, + (u64 __user *)(regs->u_regs[UREG_FP] + + STACK_BIAS), + sizeof(struct reg_window)); + } else { + struct reg_window *rp; + rp = ¤t_thread_info()->reg_window[wsaved - 1]; + err |= copy_to_user(sf, rp, sizeof(struct reg_window)); + } if (info) err |= copy_siginfo_to_user(&sf->info, info); else { @@ -498,18 +479,17 @@ static inline int handle_signal(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; err = setup_rt_frame(ka, regs, signr, oldset, (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL); if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); @@ -549,11 +529,27 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) siginfo_t info; int signr; + /* It's a lot of work and synchronization to add a new ptrace + * register for GDB to save and restore in order to get + * orig_i0 correct for syscall restarts when debugging. + * + * Although it should be the case that most of the global + * registers are volatile across a system call, glibc already + * depends upon that fact that we preserve them. So we can't + * just use any global register to save away the orig_i0 value. + * + * In particular %g2, %g3, %g4, and %g5 are all assumed to be + * preserved across a system call trap by various pieces of + * code in glibc. + * + * %g7 is used as the "thread register". %g6 is not used in + * any fixed manner. %g6 is used as a scratch register and + * a compiler temporary, but it's value is never used across + * a system call. Therefore %g6 is usable for orig_i0 storage. + */ if (pt_regs_is_syscall(regs) && - (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { - restart_syscall = 1; - } else - restart_syscall = 0; + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) + regs->u_regs[UREG_G6] = orig_i0; if (current_thread_info()->status & TS_RESTORE_SIGMASK) oldset = ¤t->saved_sigmask; @@ -562,22 +558,20 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) #ifdef CONFIG_COMPAT if (test_thread_flag(TIF_32BIT)) { - extern void do_signal32(sigset_t *, struct pt_regs *, - int restart_syscall, - unsigned long orig_i0); - do_signal32(oldset, regs, restart_syscall, orig_i0); + extern void do_signal32(sigset_t *, struct pt_regs *); + do_signal32(oldset, regs); return; } #endif signr = get_signal_to_deliver(&info, &ka, regs, NULL); - /* If the debugger messes with the program counter, it clears - * the software "in syscall" bit, directing us to not perform - * a syscall restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + if (pt_regs_is_syscall(regs) && + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } if (signr > 0) { if (restart_syscall) @@ -615,7 +609,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) */ if (current_thread_info()->status & TS_RESTORE_SIGMASK) { current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } diff --git a/arch/sparc/kernel/sigutil.h b/arch/sparc/kernel/sigutil.h new file mode 100644 index 000000000000..d223aa432bb6 --- /dev/null +++ b/arch/sparc/kernel/sigutil.h @@ -0,0 +1,9 @@ +#ifndef _SIGUTIL_H +#define _SIGUTIL_H + +int save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu); +int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu); +int save_rwin_state(int wsaved, __siginfo_rwin_t __user *rwin); +int restore_rwin_state(__siginfo_rwin_t __user *rp); + +#endif /* _SIGUTIL_H */ diff --git a/arch/sparc/kernel/sigutil_32.c b/arch/sparc/kernel/sigutil_32.c new file mode 100644 index 000000000000..35c7897b009a --- /dev/null +++ b/arch/sparc/kernel/sigutil_32.c @@ -0,0 +1,120 @@ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/thread_info.h> +#include <linux/uaccess.h> +#include <linux/sched.h> + +#include <asm/sigcontext.h> +#include <asm/fpumacro.h> +#include <asm/ptrace.h> + +#include "sigutil.h" + +int save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) +{ + int err = 0; +#ifdef CONFIG_SMP + if (test_tsk_thread_flag(current, TIF_USEDFPU)) { + put_psr(get_psr() | PSR_EF); + fpsave(¤t->thread.float_regs[0], ¤t->thread.fsr, + ¤t->thread.fpqueue[0], ¤t->thread.fpqdepth); + regs->psr &= ~(PSR_EF); + clear_tsk_thread_flag(current, TIF_USEDFPU); + } +#else + if (current == last_task_used_math) { + put_psr(get_psr() | PSR_EF); + fpsave(¤t->thread.float_regs[0], ¤t->thread.fsr, + ¤t->thread.fpqueue[0], ¤t->thread.fpqdepth); + last_task_used_math = NULL; + regs->psr &= ~(PSR_EF); + } +#endif + err |= __copy_to_user(&fpu->si_float_regs[0], + ¤t->thread.float_regs[0], + (sizeof(unsigned long) * 32)); + err |= __put_user(current->thread.fsr, &fpu->si_fsr); + err |= __put_user(current->thread.fpqdepth, &fpu->si_fpqdepth); + if (current->thread.fpqdepth != 0) + err |= __copy_to_user(&fpu->si_fpqueue[0], + ¤t->thread.fpqueue[0], + ((sizeof(unsigned long) + + (sizeof(unsigned long *)))*16)); + clear_used_math(); + return err; +} + +int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) +{ + int err; +#ifdef CONFIG_SMP + if (test_tsk_thread_flag(current, TIF_USEDFPU)) + regs->psr &= ~PSR_EF; +#else + if (current == last_task_used_math) { + last_task_used_math = NULL; + regs->psr &= ~PSR_EF; + } +#endif + set_used_math(); + clear_tsk_thread_flag(current, TIF_USEDFPU); + + if (!access_ok(VERIFY_READ, fpu, sizeof(*fpu))) + return -EFAULT; + + err = __copy_from_user(¤t->thread.float_regs[0], &fpu->si_float_regs[0], + (sizeof(unsigned long) * 32)); + err |= __get_user(current->thread.fsr, &fpu->si_fsr); + err |= __get_user(current->thread.fpqdepth, &fpu->si_fpqdepth); + if (current->thread.fpqdepth != 0) + err |= __copy_from_user(¤t->thread.fpqueue[0], + &fpu->si_fpqueue[0], + ((sizeof(unsigned long) + + (sizeof(unsigned long *)))*16)); + return err; +} + +int save_rwin_state(int wsaved, __siginfo_rwin_t __user *rwin) +{ + int i, err = __put_user(wsaved, &rwin->wsaved); + + for (i = 0; i < wsaved; i++) { + struct reg_window32 *rp; + unsigned long fp; + + rp = ¤t_thread_info()->reg_window[i]; + fp = current_thread_info()->rwbuf_stkptrs[i]; + err |= copy_to_user(&rwin->reg_window[i], rp, + sizeof(struct reg_window32)); + err |= __put_user(fp, &rwin->rwbuf_stkptrs[i]); + } + return err; +} + +int restore_rwin_state(__siginfo_rwin_t __user *rp) +{ + struct thread_info *t = current_thread_info(); + int i, wsaved, err; + + __get_user(wsaved, &rp->wsaved); + if (wsaved > NSWINS) + return -EFAULT; + + err = 0; + for (i = 0; i < wsaved; i++) { + err |= copy_from_user(&t->reg_window[i], + &rp->reg_window[i], + sizeof(struct reg_window32)); + err |= __get_user(t->rwbuf_stkptrs[i], + &rp->rwbuf_stkptrs[i]); + } + if (err) + return err; + + t->w_saved = wsaved; + synchronize_user_stack(); + if (t->w_saved) + return -EFAULT; + return 0; + +} diff --git a/arch/sparc/kernel/sigutil_64.c b/arch/sparc/kernel/sigutil_64.c new file mode 100644 index 000000000000..b19570d41a39 --- /dev/null +++ b/arch/sparc/kernel/sigutil_64.c @@ -0,0 +1,94 @@ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/thread_info.h> +#include <linux/uaccess.h> +#include <linux/errno.h> + +#include <asm/sigcontext.h> +#include <asm/fpumacro.h> +#include <asm/ptrace.h> + +#include "sigutil.h" + +int save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) +{ + unsigned long *fpregs = current_thread_info()->fpregs; + unsigned long fprs; + int err = 0; + + fprs = current_thread_info()->fpsaved[0]; + if (fprs & FPRS_DL) + err |= copy_to_user(&fpu->si_float_regs[0], fpregs, + (sizeof(unsigned int) * 32)); + if (fprs & FPRS_DU) + err |= copy_to_user(&fpu->si_float_regs[32], fpregs+16, + (sizeof(unsigned int) * 32)); + err |= __put_user(current_thread_info()->xfsr[0], &fpu->si_fsr); + err |= __put_user(current_thread_info()->gsr[0], &fpu->si_gsr); + err |= __put_user(fprs, &fpu->si_fprs); + + return err; +} + +int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) +{ + unsigned long *fpregs = current_thread_info()->fpregs; + unsigned long fprs; + int err; + + err = __get_user(fprs, &fpu->si_fprs); + fprs_write(0); + regs->tstate &= ~TSTATE_PEF; + if (fprs & FPRS_DL) + err |= copy_from_user(fpregs, &fpu->si_float_regs[0], + (sizeof(unsigned int) * 32)); + if (fprs & FPRS_DU) + err |= copy_from_user(fpregs+16, &fpu->si_float_regs[32], + (sizeof(unsigned int) * 32)); + err |= __get_user(current_thread_info()->xfsr[0], &fpu->si_fsr); + err |= __get_user(current_thread_info()->gsr[0], &fpu->si_gsr); + current_thread_info()->fpsaved[0] |= fprs; + return err; +} + +int save_rwin_state(int wsaved, __siginfo_rwin_t __user *rwin) +{ + int i, err = __put_user(wsaved, &rwin->wsaved); + + for (i = 0; i < wsaved; i++) { + struct reg_window *rp = ¤t_thread_info()->reg_window[i]; + unsigned long fp = current_thread_info()->rwbuf_stkptrs[i]; + + err |= copy_to_user(&rwin->reg_window[i], rp, + sizeof(struct reg_window)); + err |= __put_user(fp, &rwin->rwbuf_stkptrs[i]); + } + return err; +} + +int restore_rwin_state(__siginfo_rwin_t __user *rp) +{ + struct thread_info *t = current_thread_info(); + int i, wsaved, err; + + __get_user(wsaved, &rp->wsaved); + if (wsaved > NSWINS) + return -EFAULT; + + err = 0; + for (i = 0; i < wsaved; i++) { + err |= copy_from_user(&t->reg_window[i], + &rp->reg_window[i], + sizeof(struct reg_window)); + err |= __get_user(t->rwbuf_stkptrs[i], + &rp->rwbuf_stkptrs[i]); + } + if (err) + return err; + + set_thread_wsaved(wsaved); + synchronize_user_stack(); + if (get_thread_wsaved()) + return -EFAULT; + return 0; +} diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 21b125341bf7..f671e7fd6ddc 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -22,7 +22,7 @@ #include <linux/delay.h> #include <asm/ptrace.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/irq.h> #include <asm/page.h> diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 99cb17251bb5..75607724d290 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -3,7 +3,7 @@ * Copyright (C) 1997, 2007, 2008 David S. Miller (davem@davemloft.net) */ -#include <linux/module.h> +#include <linux/export.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -28,7 +28,7 @@ #include <asm/head.h> #include <asm/ptrace.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/tlbflush.h> #include <asm/mmu_context.h> #include <asm/cpudata.h> diff --git a/arch/sparc/kernel/sparc_ksyms_64.c b/arch/sparc/kernel/sparc_ksyms_64.c index 372ad59c4cba..12ff09824cd9 100644 --- a/arch/sparc/kernel/sparc_ksyms_64.c +++ b/arch/sparc/kernel/sparc_ksyms_64.c @@ -5,9 +5,10 @@ * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) */ -#include <linux/module.h> +#include <linux/export.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/bitops.h> #include <asm/system.h> #include <asm/cpudata.h> @@ -38,5 +39,15 @@ EXPORT_SYMBOL(sun4v_niagara_setperf); EXPORT_SYMBOL(sun4v_niagara2_getperf); EXPORT_SYMBOL(sun4v_niagara2_setperf); +/* from hweight.S */ +EXPORT_SYMBOL(__arch_hweight8); +EXPORT_SYMBOL(__arch_hweight16); +EXPORT_SYMBOL(__arch_hweight32); +EXPORT_SYMBOL(__arch_hweight64); + +/* from ffs_ffz.S */ +EXPORT_SYMBOL(ffs); +EXPORT_SYMBOL(__ffs); + /* Exporting a symbol from /init/main.c */ EXPORT_SYMBOL(saved_command_line); diff --git a/arch/sparc/kernel/sstate.c b/arch/sparc/kernel/sstate.c index 8cdbe5946b43..c59af546f522 100644 --- a/arch/sparc/kernel/sstate.c +++ b/arch/sparc/kernel/sstate.c @@ -14,14 +14,9 @@ #include <asm/head.h> #include <asm/io.h> -static int hv_supports_soft_state; - -static unsigned long kimage_addr_to_ra(const char *p) -{ - unsigned long val = (unsigned long) p; +#include "kernel.h" - return kern_base + (val - KERNBASE); -} +static int hv_supports_soft_state; static void do_set_sstate(unsigned long state, const char *msg) { diff --git a/arch/sparc/kernel/stacktrace.c b/arch/sparc/kernel/stacktrace.c index 3e0815349630..e78386a0029f 100644 --- a/arch/sparc/kernel/stacktrace.c +++ b/arch/sparc/kernel/stacktrace.c @@ -2,7 +2,7 @@ #include <linux/stacktrace.h> #include <linux/thread_info.h> #include <linux/ftrace.h> -#include <linux/module.h> +#include <linux/export.h> #include <asm/ptrace.h> #include <asm/stacktrace.h> diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 44e5faf1ad5f..d97f3eb72e06 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -81,7 +81,6 @@ SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) SIGN1(sys32_mlockall, sys_mlockall, %o0) -SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0) SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index 170cd8e8eb2a..29c478ffed91 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -23,7 +23,6 @@ #include <linux/uio.h> #include <linux/nfs_fs.h> #include <linux/quota.h> -#include <linux/module.h> #include <linux/poll.h> #include <linux/personality.h> #include <linux/stat.h> diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 908b47a5ee24..441521ad8a3f 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -23,7 +23,7 @@ #include <linux/ipc.h> #include <linux/personality.h> #include <linux/random.h> -#include <linux/module.h> +#include <linux/export.h> #include <asm/uaccess.h> #include <asm/utrap.h> diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 6e492d59f6b1..63402f9e9f51 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -67,7 +67,7 @@ sys_call_table: /*235*/ .long sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall /*240*/ .long sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler /*245*/ .long sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys_sched_rr_get_interval, sys_nanosleep -/*250*/ .long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl +/*250*/ .long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_ni_syscall /*255*/ .long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun /*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy @@ -84,4 +84,4 @@ sys_call_table: /*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime -/*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns +/*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index f566518483b5..db86b1a0e9a9 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -68,7 +68,7 @@ sys_call_table32: .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall /*240*/ .word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler .word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep -/*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl +/*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys_nis_syscall .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy @@ -85,7 +85,7 @@ sys_call_table32: /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime - .word sys_syncfs, compat_sys_sendmmsg, sys_setns + .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev #endif /* CONFIG_COMPAT */ @@ -145,7 +145,7 @@ sys_call_table: .word sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall /*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler .word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys_sched_rr_get_interval, sys_nanosleep -/*250*/ .word sys_64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl +/*250*/ .word sys_64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall .word sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep /*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy @@ -162,4 +162,4 @@ sys_call_table: /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime - .word sys_syncfs, sys_sendmmsg, sys_setns + .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index 1db6b18964d2..e861072b9c52 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c @@ -9,7 +9,7 @@ */ #include <linux/errno.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/param.h> diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c index c0490c7bbde0..591f20ca9e48 100644 --- a/arch/sparc/kernel/traps_32.c +++ b/arch/sparc/kernel/traps_32.c @@ -14,6 +14,7 @@ #include <linux/signal.h> #include <linux/smp.h> #include <linux/kdebug.h> +#include <linux/export.h> #include <asm/delay.h> #include <asm/system.h> diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c index 4491f4cb2695..4d043a1b2492 100644 --- a/arch/sparc/kernel/unaligned_32.c +++ b/arch/sparc/kernel/unaligned_32.c @@ -10,7 +10,6 @@ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> -#include <linux/module.h> #include <asm/ptrace.h> #include <asm/processor.h> #include <asm/system.h> @@ -247,7 +246,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) unsigned long addr = compute_effective_address(regs, insn); int err; - perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, addr); + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); switch (dir) { case load: err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f), @@ -338,7 +337,7 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn) } addr = compute_effective_address(regs, insn); - perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, addr); + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); switch(dir) { case load: err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f), diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c index b2b019ea8caa..76e4ac1a13e1 100644 --- a/arch/sparc/kernel/unaligned_64.c +++ b/arch/sparc/kernel/unaligned_64.c @@ -22,6 +22,7 @@ #include <linux/bitops.h> #include <linux/perf_event.h> #include <linux/ratelimit.h> +#include <linux/bitops.h> #include <asm/fpumacro.h> enum direction { @@ -317,7 +318,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); - perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, addr); + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); switch (asi) { case ASI_NL: case ASI_AIUPL: @@ -373,18 +374,13 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) } } -static char popc_helper[] = { -0, 1, 1, 2, 1, 2, 2, 3, -1, 2, 2, 3, 2, 3, 3, 4, -}; - int handle_popc(u32 insn, struct pt_regs *regs) { - u64 value; - int ret, i, rd = ((insn >> 25) & 0x1f); int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; + int ret, rd = ((insn >> 25) & 0x1f); + u64 value; - perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); + perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0); if (insn & 0x2000) { maybe_flush_windows(0, 0, rd, from_kernel); value = sign_extend_imm13(insn); @@ -392,10 +388,7 @@ int handle_popc(u32 insn, struct pt_regs *regs) maybe_flush_windows(0, insn & 0x1f, rd, from_kernel); value = fetch_reg(insn & 0x1f, regs); } - for (ret = 0, i = 0; i < 16; i++) { - ret += popc_helper[value & 0xf]; - value >>= 4; - } + ret = hweight64(value); if (rd < 16) { if (rd) regs->u_regs[rd] = ret; @@ -431,7 +424,7 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs) int asi = decode_asi(insn, regs); int flag = (freg < 32) ? FPRS_DL : FPRS_DU; - perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); + perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0); save_and_clear_fpu(); current_thread_info()->xfsr[0] &= ~0x1c000; @@ -554,7 +547,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs) int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; unsigned long *reg; - perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); + perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0); maybe_flush_windows(0, 0, rd, from_kernel); reg = fetch_reg_addr(rd, regs); @@ -586,7 +579,7 @@ void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr if (tstate & TSTATE_PRIV) die_if_kernel("lddfmna from kernel", regs); - perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar); + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, sfar); if (test_thread_flag(TIF_32BIT)) pc = (u32)pc; if (get_user(insn, (u32 __user *) pc) != -EFAULT) { @@ -647,7 +640,7 @@ void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr if (tstate & TSTATE_PRIV) die_if_kernel("stdfmna from kernel", regs); - perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar); + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, sfar); if (test_thread_flag(TIF_32BIT)) pc = (u32)pc; if (get_user(insn, (u32 __user *) pc) != -EFAULT) { diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 3cb1def9806c..f67e28ef598c 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/irq.h> +#include <linux/export.h> #include <linux/init.h> #include <asm/mdesc.h> diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c index 29348ea139c3..f8e7dd53e1c7 100644 --- a/arch/sparc/kernel/viohs.c +++ b/arch/sparc/kernel/viohs.c @@ -4,7 +4,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/sched.h> diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c index 36357717d691..73370674ccff 100644 --- a/arch/sparc/kernel/visemul.c +++ b/arch/sparc/kernel/visemul.c @@ -713,17 +713,17 @@ static void pcmp(struct pt_regs *regs, unsigned int insn, unsigned int opf) s16 b = (rs2 >> (i * 16)) & 0xffff; if (a > b) - rd_val |= 1 << i; + rd_val |= 8 >> i; } break; case FCMPGT32_OPF: for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; + s32 a = (rs1 >> (i * 32)) & 0xffffffff; + s32 b = (rs2 >> (i * 32)) & 0xffffffff; if (a > b) - rd_val |= 1 << i; + rd_val |= 2 >> i; } break; @@ -733,17 +733,17 @@ static void pcmp(struct pt_regs *regs, unsigned int insn, unsigned int opf) s16 b = (rs2 >> (i * 16)) & 0xffff; if (a <= b) - rd_val |= 1 << i; + rd_val |= 8 >> i; } break; case FCMPLE32_OPF: for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; + s32 a = (rs1 >> (i * 32)) & 0xffffffff; + s32 b = (rs2 >> (i * 32)) & 0xffffffff; if (a <= b) - rd_val |= 1 << i; + rd_val |= 2 >> i; } break; @@ -753,17 +753,17 @@ static void pcmp(struct pt_regs *regs, unsigned int insn, unsigned int opf) s16 b = (rs2 >> (i * 16)) & 0xffff; if (a != b) - rd_val |= 1 << i; + rd_val |= 8 >> i; } break; case FCMPNE32_OPF: for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; + s32 a = (rs1 >> (i * 32)) & 0xffffffff; + s32 b = (rs2 >> (i * 32)) & 0xffffffff; if (a != b) - rd_val |= 1 << i; + rd_val |= 2 >> i; } break; @@ -773,17 +773,17 @@ static void pcmp(struct pt_regs *regs, unsigned int insn, unsigned int opf) s16 b = (rs2 >> (i * 16)) & 0xffff; if (a == b) - rd_val |= 1 << i; + rd_val |= 8 >> i; } break; case FCMPEQ32_OPF: for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; + s32 a = (rs1 >> (i * 32)) & 0xffffffff; + s32 b = (rs2 >> (i * 32)) & 0xffffffff; if (a == b) - rd_val |= 1 << i; + rd_val |= 2 >> i; } break; } @@ -802,7 +802,7 @@ int vis_emul(struct pt_regs *regs, unsigned int insn) BUG_ON(regs->tstate & TSTATE_PRIV); - perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); + perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0); if (test_thread_flag(TIF_32BIT)) pc = (u32)pc; diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index c0220759003e..0e1605697b49 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -107,7 +107,26 @@ SECTIONS *(.sun4v_2insn_patch) __sun4v_2insn_patch_end = .; } - + .swapper_tsb_phys_patch : { + __swapper_tsb_phys_patch = .; + *(.swapper_tsb_phys_patch) + __swapper_tsb_phys_patch_end = .; + } + .swapper_4m_tsb_phys_patch : { + __swapper_4m_tsb_phys_patch = .; + *(.swapper_4m_tsb_phys_patch) + __swapper_4m_tsb_phys_patch_end = .; + } + .popc_3insn_patch : { + __popc_3insn_patch = .; + *(.popc_3insn_patch) + __popc_3insn_patch_end = .; + } + .popc_6insn_patch : { + __popc_6insn_patch = .; + *(.popc_6insn_patch) + __popc_6insn_patch_end = .; + } PERCPU_SECTION(SMP_CACHE_BYTES) . = ALIGN(PAGE_SIZE); |
