diff options
39 files changed, 854 insertions, 510 deletions
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 0eb0d027eb32..1d1b34500b69 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -12,7 +12,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \ kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ - mac80211.xml debugobjects.xml + mac80211.xml debugobjects.xml sh.xml ### # The build process is as follows (targets): diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl new file mode 100644 index 000000000000..0c3dc4c69dd1 --- /dev/null +++ b/Documentation/DocBook/sh.tmpl @@ -0,0 +1,105 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> + +<book id="sh-drivers"> + <bookinfo> + <title>SuperH Interfaces Guide</title> + + <authorgroup> + <author> + <firstname>Paul</firstname> + <surname>Mundt</surname> + <affiliation> + <address> + <email>lethal@linux-sh.org</email> + </address> + </affiliation> + </author> + </authorgroup> + + <copyright> + <year>2008</year> + <holder>Paul Mundt</holder> + </copyright> + <copyright> + <year>2008</year> + <holder>Renesas Technology Corp.</holder> + </copyright> + + <legalnotice> + <para> + This documentation is free software; you can redistribute + it and/or modify it under the terms of the GNU General Public + License version 2 as published by the Free Software Foundation. + </para> + + <para> + This program is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied + warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + </para> + + <para> + You should have received a copy of the GNU General Public + License along with this program; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, + MA 02111-1307 USA + </para> + + <para> + For more details see the file COPYING in the source + distribution of Linux. + </para> + </legalnotice> + </bookinfo> + +<toc></toc> + + <chapter id="mm"> + <title>Memory Management</title> + <sect1 id="sh4"> + <title>SH-4</title> + <sect2 id="sq"> + <title>Store Queue API</title> +!Earch/sh/kernel/cpu/sh4/sq.c + </sect2> + </sect1> + <sect1 id="sh5"> + <title>SH-5</title> + <sect2 id="tlb"> + <title>TLB Interfaces</title> +!Iarch/sh/mm/tlb-sh5.c +!Iarch/sh/include/asm/tlb_64.h + </sect2> + </sect1> + </chapter> + <chapter id="clk"> + <title>Clock Framework Extensions</title> +!Iarch/sh/include/asm/clock.h + </chapter> + <chapter id="mach"> + <title>Machine Specific Interfaces</title> + <sect1 id="dreamcast"> + <title>mach-dreamcast</title> +!Iarch/sh/boards/mach-dreamcast/rtc.c + </sect1> + <sect1 id="x3proto"> + <title>mach-x3proto</title> +!Earch/sh/boards/mach-x3proto/ilsel.c + </sect1> + </chapter> + <chapter id="busses"> + <title>Busses</title> + <sect1 id="superhyway"> + <title>SuperHyway</title> +!Edrivers/sh/superhyway/superhyway.c + </sect1> + + <sect1 id="maple"> + <title>Maple</title> +!Edrivers/sh/maple/maple.c + </sect1> + </chapter> +</book> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index cb992c3d6b71..5131d50f851a 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -48,6 +48,9 @@ config GENERIC_HWEIGHT config GENERIC_HARDIRQS def_bool y +config GENERIC_HARDIRQS_NO__DO_IRQ + def_bool y + config GENERIC_IRQ_PROBE def_bool y @@ -63,6 +66,10 @@ config GENERIC_TIME config GENERIC_CLOCKEVENTS def_bool n +config GENERIC_LOCKBREAK + def_bool y + depends on SMP && PREEMPT + config SYS_SUPPORTS_PM bool @@ -94,9 +101,6 @@ config ARCH_HAS_ILOG2_U64 config ARCH_NO_VIRT_TO_BUS def_bool y -config ARCH_SUPPORTS_AOUT - def_bool y - config IO_TRAPPED bool @@ -483,6 +487,23 @@ config CRASH_DUMP For more details see Documentation/kdump/kdump.txt +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via prctl, it cannot be disabled and the task is only + allowed to execute a few safe syscalls defined by each seccomp + mode. + + If unsure, say N. + config SMP bool "Symmetric multi-processing support" depends on SYS_SUPPORTS_SMP diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 36f4b1f7066d..4d2d102e00d5 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -182,7 +182,7 @@ if SUPERH64 config SH64_PROC_ASIDS bool "Debug: report ASIDs through /proc/asids" - depends on PROC_FS + depends on PROC_FS && MMU config SH64_SR_WATCH bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 25659ce74baa..01d85c74481d 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -95,8 +95,6 @@ head-y := arch/sh/kernel/init_task.o head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o -LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) - core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/ core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ @@ -145,10 +143,6 @@ cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4 cpuincdir-$(CONFIG_CPU_SH5) += cpu-sh5 cpuincdir-y += cpu-common # Must be last -libs-$(CONFIG_SUPERH32) := arch/sh/lib/ $(libs-y) -libs-$(CONFIG_SUPERH64) := arch/sh/lib64/ $(libs-y) -libs-y += $(LIBGCC) - drivers-y += arch/sh/drivers/ drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/ @@ -161,10 +155,16 @@ KBUILD_CFLAGS += -pipe $(cflags-y) KBUILD_CPPFLAGS += $(cflags-y) KBUILD_AFLAGS += $(cflags-y) +LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) + +libs-$(CONFIG_SUPERH32) := arch/sh/lib/ $(libs-y) +libs-$(CONFIG_SUPERH64) := arch/sh/lib64/ $(libs-y) +libs-y += $(LIBGCC) + PHONY += maketools FORCE maketools: include/linux/version.h FORCE - $(Q)$(MAKE) $(build)=arch/sh/tools arch/sh/include/asm/machtypes.h + $(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h all: $(KBUILD_IMAGE) @@ -215,4 +215,4 @@ arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S $(call filechk,gen-syscalltab) CLEAN_FILES += arch/sh/lib64/syscalltab.h \ - arch/sh/include/asm/machtypes.h + include/asm-sh/machtypes.h diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile index ff9b93c5a91b..463022c7df3c 100644 --- a/arch/sh/boards/Makefile +++ b/arch/sh/boards/Makefile @@ -5,4 +5,4 @@ obj-$(CONFIG_SH_AP325RXA) += board-ap325rxa.o obj-$(CONFIG_SH_MAGIC_PANEL_R2) += board-magicpanelr2.o obj-$(CONFIG_SH_RSK7203) += board-rsk7203.o obj-$(CONFIG_SH_SH7785LCR) += board-sh7785lcr.o -obj-$(CONFIG_SH_SHMIN) += board-shmin..o +obj-$(CONFIG_SH_SHMIN) += board-shmin.o diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c index 9c71603d29a2..025d4fe55a58 100644 --- a/arch/sh/boards/board-ap325rxa.c +++ b/arch/sh/boards/board-ap325rxa.c @@ -17,7 +17,6 @@ #include <linux/mtd/physmap.h> #include <linux/delay.h> #include <linux/i2c.h> -#include <linux/delay.h> #include <linux/smc911x.h> #include <media/soc_camera_platform.h> #include <media/sh_mobile_ceu.h> diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c index 5d96e2eef82a..051c29d4eae0 100644 --- a/arch/sh/boards/mach-se/7343/irq.c +++ b/arch/sh/boards/mach-se/7343/irq.c @@ -13,7 +13,6 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/interrupt.h> -#include <linux/irq.h> #include <linux/io.h> #include <mach-se/mach/se7343.h> diff --git a/arch/sh/configs/dreamcast_defconfig b/arch/sh/configs/dreamcast_defconfig index d4075283956d..3dc1cbd8a981 100644 --- a/arch/sh/configs/dreamcast_defconfig +++ b/arch/sh/configs/dreamcast_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.26 -# Wed Jul 30 01:34:24 2008 +# Linux kernel version: 2.6.27-rc1 +# Mon Aug 4 16:49:13 2008 # CONFIG_SUPERH=y CONFIG_SUPERH32=y @@ -11,6 +11,7 @@ CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_TIME=y @@ -21,7 +22,6 @@ CONFIG_LOCKDEP_SUPPORT=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_ARCH_NO_VIRT_TO_BUS=y -CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -87,6 +87,7 @@ CONFIG_HAVE_OPROFILE=y # CONFIG_USE_GENERIC_SMP_HELPERS is not set CONFIG_HAVE_CLK=y CONFIG_PROC_PAGE_MONITOR=y +CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set @@ -284,6 +285,7 @@ CONFIG_HZ=250 # CONFIG_SCHED_HRTICK is not set # CONFIG_KEXEC is not set # CONFIG_CRASH_DUMP is not set +CONFIG_SECCOMP=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y @@ -317,10 +319,6 @@ CONFIG_PCI_LEGACY=y # CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set - -# -# Networking -# CONFIG_NET=y # @@ -555,7 +553,7 @@ CONFIG_INPUT_KEYBOARD=y # CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set -# CONFIG_KEYBOARD_MAPLE is not set +CONFIG_KEYBOARD_MAPLE=y # CONFIG_KEYBOARD_SH_KEYSC is not set CONFIG_INPUT_MOUSE=y # CONFIG_MOUSE_PS2 is not set diff --git a/arch/sh/include/asm/a.out.h b/arch/sh/include/asm/a.out.h deleted file mode 100644 index 1f93130e179c..000000000000 --- a/arch/sh/include/asm/a.out.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef __ASM_SH_A_OUT_H -#define __ASM_SH_A_OUT_H - -struct exec -{ - unsigned long a_info; /* Use macros N_MAGIC, etc for access */ - unsigned a_text; /* length of text, in bytes */ - unsigned a_data; /* length of data, in bytes */ - unsigned a_bss; /* length of uninitialized data area for file, in bytes */ - unsigned a_syms; /* length of symbol table data in file, in bytes */ - unsigned a_entry; /* start address */ - unsigned a_trsize; /* length of relocation info for text, in bytes */ - unsigned a_drsize; /* length of relocation info for data, in bytes */ -}; - -#define N_TRSIZE(a) ((a).a_trsize) -#define N_DRSIZE(a) ((a).a_drsize) -#define N_SYMSIZE(a) ((a).a_syms) - -#endif /* __ASM_SH_A_OUT_H */ diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h index 643ab5a7cf3b..b86aeabba61a 100644 --- a/arch/sh/include/asm/ptrace.h +++ b/arch/sh/include/asm/ptrace.h @@ -104,6 +104,15 @@ struct pt_dspregs { extern void show_regs(struct pt_regs *); +/* + * These are defined as per linux/ptrace.h. + */ +struct task_struct; + +#define arch_has_single_step() (1) +extern void user_enable_single_step(struct task_struct *); +extern void user_disable_single_step(struct task_struct *); + #ifdef CONFIG_SH_DSP #define task_pt_regs(task) \ ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h new file mode 100644 index 000000000000..3280ed3802ef --- /dev/null +++ b/arch/sh/include/asm/seccomp.h @@ -0,0 +1,10 @@ +#ifndef __ASM_SECCOMP_H + +#include <linux/unistd.h> + +#define __NR_seccomp_read __NR_read +#define __NR_seccomp_write __NR_write +#define __NR_seccomp_exit __NR_exit +#define __NR_seccomp_sigreturn __NR_rt_sigreturn + +#endif /* __ASM_SECCOMP_H */ diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h index eeb4c747119e..0a894cafb1dd 100644 --- a/arch/sh/include/asm/thread_info.h +++ b/arch/sh/include/asm/thread_info.h @@ -117,24 +117,45 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ #define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */ #define TIF_SINGLESTEP 4 /* singlestepping active */ -#define TIF_SYSCALL_AUDIT 5 +#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */ +#define TIF_SECCOMP 6 /* secure computing */ +#define TIF_NOTIFY_RESUME 7 /* callback before returning to user */ #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 -#define TIF_FREEZE 19 - -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_USEDFPU (1<<TIF_USEDFPU) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_FREEZE (1<<TIF_FREEZE) - -#define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */ -#define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */ +#define TIF_FREEZE 19 /* Freezing for suspend */ + +#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) +#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) +#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) +#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) +#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) +#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) +#define _TIF_SECCOMP (1 << TIF_SECCOMP) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) +#define _TIF_USEDFPU (1 << TIF_USEDFPU) +#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) +#define _TIF_FREEZE (1 << TIF_FREEZE) + +/* + * _TIF_ALLWORK_MASK and _TIF_WORK_MASK need to fit within a byte, or we + * blow the tst immediate size constraints and need to fix up + * arch/sh/kernel/entry-common.S. + */ + +/* work to do in syscall trace */ +#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ + _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) + +/* work to do on any return to u-space */ +#define _TIF_ALLWORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING | \ + _TIF_NEED_RESCHED | _TIF_SYSCALL_AUDIT | \ + _TIF_SINGLESTEP | _TIF_RESTORE_SIGMASK | \ + _TIF_NOTIFY_RESUME) + +/* work to do on interrupt/exception return */ +#define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \ + _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)) #endif /* __KERNEL__ */ diff --git a/arch/sh/include/asm/tlb_64.h b/arch/sh/include/asm/tlb_64.h index 0a96f3af69e3..ef0ae2a28f23 100644 --- a/arch/sh/include/asm/tlb_64.h +++ b/arch/sh/include/asm/tlb_64.h @@ -21,11 +21,9 @@ #ifndef __ASSEMBLY__ /** - * for_each_dtlb_entry + * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries * * @tlb: TLB entry - * - * Iterate over free (non-wired) DTLB entries */ #define for_each_dtlb_entry(tlb) \ for (tlb = cpu_data->dtlb.first; \ @@ -33,11 +31,9 @@ tlb += cpu_data->dtlb.step) /** - * for_each_itlb_entry + * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries * * @tlb: TLB entry - * - * Iterate over free (non-wired) ITLB entries */ #define for_each_itlb_entry(tlb) \ for (tlb = cpu_data->itlb.first; \ @@ -45,11 +41,9 @@ tlb += cpu_data->itlb.step) /** - * __flush_tlb_slot + * __flush_tlb_slot - Flushes TLB slot @slot. * * @slot: Address of TLB slot. - * - * Flushes TLB slot @slot. */ static inline void __flush_tlb_slot(unsigned long long slot) { diff --git a/arch/sh/include/cpu-sh2/cpu/cache.h b/arch/sh/include/cpu-sh2/cpu/cache.h index 4e0b16500686..673515bc4135 100644 --- a/arch/sh/include/cpu-sh2/cpu/cache.h +++ b/arch/sh/include/cpu-sh2/cpu/cache.h @@ -21,11 +21,11 @@ #define CCR 0xffffffec #define CCR_CACHE_CE 0x01 /* Cache enable */ -#define CCR_CACHE_WT 0x06 /* CCR[bit1=1,bit2=1] */ +#define CCR_CACHE_WT 0x02 /* CCR[bit1=1,bit2=1] */ /* 0x00000000-0x7fffffff: Write-through */ /* 0x80000000-0x9fffffff: Write-back */ /* 0xc0000000-0xdfffffff: Write-through */ -#define CCR_CACHE_CB 0x00 /* CCR[bit1=0,bit2=0] */ +#define CCR_CACHE_CB 0x04 /* CCR[bit1=0,bit2=0] */ /* 0x00000000-0x7fffffff: Write-back */ /* 0x80000000-0x9fffffff: Write-through */ /* 0xc0000000-0xdfffffff: Write-back */ @@ -36,6 +36,8 @@ #define CCR_CACHE_ENABLE CCR_CACHE_CE #define CCR_CACHE_INVALIDATE CCR_CACHE_CF +#define CACHE_PHYSADDR_MASK 0x1ffffc00 + #endif #endif /* __ASM_CPU_SH2_CACHE_H */ diff --git a/arch/sh/include/cpu-sh2a/cpu/addrspace.h b/arch/sh/include/cpu-sh2a/cpu/addrspace.h new file mode 100644 index 000000000000..31eb4b58aa6d --- /dev/null +++ b/arch/sh/include/cpu-sh2a/cpu/addrspace.h @@ -0,0 +1,10 @@ +#ifndef __ASM_SH_CPU_SH2A_ADDRSPACE_H +#define __ASM_SH_CPU_SH2A_ADDRSPACE_H + +#define P0SEG 0x00000000 +#define P1SEG 0x00000000 +#define P2SEG 0x20000000 +#define P3SEG 0x40000000 +#define P4SEG 0x60000000 + +#endif /* __ASM_SH_CPU_SH2A_ADDRSPACE_H */ diff --git a/arch/sh/include/cpu-sh2a/cpu/cache.h b/arch/sh/include/cpu-sh2a/cpu/cache.h index afe228b3f493..defb0baa5a06 100644 --- a/arch/sh/include/cpu-sh2a/cpu/cache.h +++ b/arch/sh/include/cpu-sh2a/cpu/cache.h @@ -36,5 +36,8 @@ #define CCR_CACHE_ENABLE (CCR_CACHE_OCE | CCR_CACHE_ICE) #define CCR_CACHE_INVALIDATE (CCR_CACHE_OCI | CCR_CACHE_ICI) +#define CCR_ICACHE_INVALIDATE CCR_CACHE_ICI +#define CCR_OCACHE_INVALIDATE CCR_CACHE_OCI +#define CACHE_PHYSADDR_MASK 0x1ffffc00 #endif /* __ASM_CPU_SH2A_CACHE_H */ diff --git a/arch/sh/include/cpu-sh2a/cpu/cacheflush.h b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h new file mode 100644 index 000000000000..3d3b9205d2ac --- /dev/null +++ b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h @@ -0,0 +1,34 @@ +#ifndef __ASM_CPU_SH2A_CACHEFLUSH_H +#define __ASM_CPU_SH2A_CACHEFLUSH_H + +/* + * Cache flushing: + * + * - flush_cache_all() flushes entire cache + * - flush_cache_mm(mm) flushes the specified mm context's cache lines + * - flush_cache_dup mm(mm) handles cache flushing when forking + * - flush_cache_page(mm, vmaddr, pfn) flushes a single page + * - flush_cache_range(vma, start, end) flushes a range of pages + * + * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache + * - flush_icache_range(start, end) flushes(invalidates) a range for icache + * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache + * + * Caches are indexed (effectively) by physical address on SH-2, so + * we don't need them. + */ +#define flush_cache_all() do { } while (0) +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_dup_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) +#define flush_dcache_page(page) do { } while (0) +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) +void flush_icache_range(unsigned long start, unsigned long end); +#define flush_icache_page(vma,pg) do { } while (0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) +#define flush_cache_sigtramp(vaddr) do { } while (0) + +#define p3_cache_init() do { } while (0) +#endif /* __ASM_CPU_SH2A_CACHEFLUSH_H */ diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index dcdf959a3d44..8a8a993f55ea 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -199,7 +199,7 @@ EXPORT_SYMBOL(sq_remap); /** * sq_unmap - Unmap a Store Queue allocation - * @map: Pre-allocated Store Queue mapping. + * @vaddr: Pre-allocated Store Queue mapping. * * Unmaps the store queue allocation @map that was previously created by * sq_remap(). Also frees up the pte that was previously inserted into diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S index ca08e7f26a3a..04c7da968146 100644 --- a/arch/sh/kernel/cpu/sh5/entry.S +++ b/arch/sh/kernel/cpu/sh5/entry.S @@ -987,11 +987,11 @@ work_resched: work_notifysig: gettr tr1, LINK - movi do_signal, r6 + movi do_notify_resume, r6 ptabs r6, tr0 or SP, ZERO, r2 - or ZERO, ZERO, r3 - blink tr0, LINK /* Call do_signal(regs, 0), return here */ + or r7, ZERO, r3 + blink tr0, LINK /* Call do_notify_resume(regs, current_thread_info->flags), return here */ restore_all: /* Do prefetches */ @@ -1300,18 +1300,20 @@ syscall_allowed: getcon KCR0, r2 ld.l r2, TI_FLAGS, r4 - movi (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT), r6 + movi _TIF_WORK_SYSCALL_MASK, r6 and r6, r4, r6 beq/l r6, ZERO, tr0 /* Trace it by calling syscall_trace before and after */ - movi syscall_trace, r4 + movi do_syscall_trace_enter, r4 or SP, ZERO, r2 - or ZERO, ZERO, r3 ptabs r4, tr0 blink tr0, LINK - /* Reload syscall number as r5 is trashed by syscall_trace */ + /* Save the retval */ + st.q SP, FRAME_R(2), r2 + + /* Reload syscall number as r5 is trashed by do_syscall_trace_enter */ ld.q SP, FRAME_S(FSYSCALL_ID), r5 andi r5, 0x1ff, r5 @@ -1343,9 +1345,8 @@ syscall_ret_trace: /* We get back here only if under trace */ st.q SP, FRAME_R(9), r2 /* Save return value */ - movi syscall_trace, LINK + movi do_syscall_trace_leave, LINK or SP, ZERO, r2 - movi 1, r3 ptabs LINK, tr0 blink tr0, LINK diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index 5e0dd1933847..0bc17def55a7 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -202,7 +202,7 @@ work_resched: syscall_exit_work: ! r0: current_thread_info->flags ! r8: current_thread_info - tst #_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT, r0 + tst #_TIF_WORK_SYSCALL_MASK, r0 bt/s work_pending tst #_TIF_NEED_RESCHED, r0 #ifdef CONFIG_TRACE_IRQFLAGS @@ -211,10 +211,8 @@ syscall_exit_work: nop #endif sti - ! XXX setup arguments... mov r15, r4 - mov #1, r5 - mov.l 4f, r0 ! do_syscall_trace + mov.l 8f, r0 ! do_syscall_trace_leave jsr @r0 nop bra resume_userspace @@ -223,12 +221,11 @@ syscall_exit_work: .align 2 syscall_trace_entry: ! Yes it is traced. - ! XXX setup arguments... mov r15, r4 - mov #0, r5 - mov.l 4f, r11 ! Call do_syscall_trace which notifies + mov.l 7f, r11 ! Call do_syscall_trace_enter which notifies jsr @r11 ! superior (will chomp R[0-7]) nop + mov.l r0, @(OFF_R0,r15) ! Save return value ! Reload R0-R4 from kernel stack, where the ! parent may have modified them using ! ptrace(POKEUSR). (Note that R0-R2 are @@ -351,7 +348,7 @@ ENTRY(system_call) ! get_current_thread_info r8, r10 mov.l @(TI_FLAGS,r8), r8 - mov #(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT), r10 + mov #_TIF_WORK_SYSCALL_MASK, r10 tst r10, r8 bf syscall_trace_entry ! @@ -389,8 +386,9 @@ syscall_exit: #endif 2: .long NR_syscalls 3: .long sys_call_table -4: .long do_syscall_trace #ifdef CONFIG_TRACE_IRQFLAGS 5: .long trace_hardirqs_on 6: .long trace_hardirqs_off #endif +7: .long do_syscall_trace_enter +8: .long do_syscall_trace_leave diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index ec1eadce4aaa..4703dff174d5 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -13,6 +13,7 @@ #include <linux/kexec.h> #include <linux/delay.h> #include <linux/reboot.h> +#include <linux/numa.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> @@ -104,3 +105,10 @@ void machine_kexec(struct kimage *image) (*rnk)(page_list, reboot_code_buffer, image->start, vbr_reg); } +void arch_crash_save_vmcoreinfo(void) +{ +#ifdef CONFIG_NUMA + VMCOREINFO_SYMBOL(node_data); + VMCOREINFO_LENGTH(node_data, MAX_NUMNODES); +#endif +} diff --git a/arch/sh/kernel/module.c b/arch/sh/kernel/module.c index 5482e65375a9..c43081039dd5 100644 --- a/arch/sh/kernel/module.c +++ b/arch/sh/kernel/module.c @@ -27,6 +27,7 @@ #include <linux/moduleloader.h> #include <linux/elf.h> #include <linux/vmalloc.h> +#include <linux/bug.h> #include <linux/fs.h> #include <linux/string.h> #include <linux/kernel.h> @@ -36,7 +37,8 @@ void *module_alloc(unsigned long size) { if (size == 0) return NULL; - return vmalloc(size); + + return vmalloc_exec(size); } @@ -145,9 +147,10 @@ int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { - return 0; + return module_bug_finalize(hdr, sechdrs, me); } void module_arch_cleanup(struct module *mod) { + module_bug_cleanup(mod); } diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index 2bc72def5cf8..035cb300d3dc 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -20,6 +20,8 @@ #include <linux/signal.h> #include <linux/io.h> #include <linux/audit.h> +#include <linux/seccomp.h> +#include <linux/tracehook.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -57,7 +59,23 @@ static inline int put_stack_long(struct task_struct *task, int offset, return 0; } -static void ptrace_disable_singlestep(struct task_struct *child) +void user_enable_single_step(struct task_struct *child) +{ + struct pt_regs *regs = task_pt_regs(child); + long pc; + + pc = get_stack_long(child, (long)®s->pc); + + /* Next scheduling will set up UBC */ + if (child->thread.ubc_pc == 0) + ubc_usercnt += 1; + + child->thread.ubc_pc = pc; + + set_tsk_thread_flag(child, TIF_SINGLESTEP); +} + +void user_disable_single_step(struct task_struct *child) { clear_tsk_thread_flag(child, TIF_SINGLESTEP); @@ -81,7 +99,7 @@ static void ptrace_disable_singlestep(struct task_struct *child) */ void ptrace_disable(struct task_struct *child) { - ptrace_disable_singlestep(child); + user_disable_single_step(child); } long arch_ptrace(struct task_struct *child, long request, long addr, long data) @@ -90,12 +108,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) int ret; switch (request) { - /* when I and D space are separate, these will need to be fixed. */ - case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: - ret = generic_ptrace_peekdata(child, addr, data); - break; - /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { unsigned long tmp; @@ -125,12 +137,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; } - /* when I and D space are separate, this will have to be fixed. */ - case PTRACE_POKETEXT: /* write the word at location addr. */ - case PTRACE_POKEDATA: - ret = generic_ptrace_pokedata(child, addr, data); - break; - case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ ret = -EIO; if ((addr & 3) || addr < 0 || @@ -151,67 +157,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } break; - case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ - case PTRACE_CONT: { /* restart after signal. */ - ret = -EIO; - if (!valid_signal(data)) - break; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - - ptrace_disable_singlestep(child); - - child->exit_code = data; - wake_up_process(child); - ret = 0; - break; - } - -/* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: { - ret = 0; - if (child->exit_state == EXIT_ZOMBIE) /* already dead */ - break; - ptrace_disable_singlestep(child); - child->exit_code = SIGKILL; - wake_up_process(child); - break; - } - - case PTRACE_SINGLESTEP: { /* set the trap flag. */ - long pc; - struct pt_regs *regs = NULL; - - ret = -EIO; - if (!valid_signal(data)) - break; - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - if ((child->ptrace & PT_DTRACE) == 0) { - /* Spurious delayed TF traps may occur */ - child->ptrace |= PT_DTRACE; - } - - pc = get_stack_long(child, (long)®s->pc); - - /* Next scheduling will set up UBC */ - if (child->thread.ubc_pc == 0) - ubc_usercnt += 1; - child->thread.ubc_pc = pc; - - set_tsk_thread_flag(child, TIF_SINGLESTEP); - child->exit_code = data; - /* give it a chance to run. */ - wake_up_process(child); - ret = 0; - break; - } - #ifdef CONFIG_SH_DSP case PTRACE_GETDSPREGS: { unsigned long dp; @@ -272,39 +217,49 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) return ret; } -asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) +static inline int audit_arch(void) { - struct task_struct *tsk = current; + int arch = EM_SH; - if (unlikely(current->audit_context) && entryexit) - audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]), - regs->regs[0]); +#ifdef CONFIG_CPU_LITTLE_ENDIAN + arch |= __AUDIT_ARCH_LE; +#endif - if (!test_thread_flag(TIF_SYSCALL_TRACE) && - !test_thread_flag(TIF_SINGLESTEP)) - goto out; - if (!(tsk->ptrace & PT_PTRACED)) - goto out; + return arch; +} - /* the 0x80 provides a way for the tracing parent to distinguish - between a syscall stop and SIGTRAP delivery */ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) && - !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0)); +asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) +{ + long ret = 0; - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (tsk->exit_code) { - send_sig(tsk->exit_code, tsk, 1); - tsk->exit_code = 0; - } + secure_computing(regs->regs[0]); + + if (test_thread_flag(TIF_SYSCALL_TRACE) && + tracehook_report_syscall_entry(regs)) + /* + * Tracing decided this syscall should not happen. + * We'll return a bogus call number to get an ENOSYS + * error, but leave the original number in regs->regs[0]. + */ + ret = -1L; -out: - if (unlikely(current->audit_context) && !entryexit) - audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[3], + if (unlikely(current->audit_context)) + audit_syscall_entry(audit_arch(), regs->regs[3], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); + return ret ?: regs->regs[0]; +} + +asmlinkage void do_syscall_trace_leave(struct pt_regs *regs) +{ + int step; + + if (unlikely(current->audit_context)) + audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]), + regs->regs[0]); + + step = test_thread_flag(TIF_SINGLESTEP); + if (step || test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(regs, step); } diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c index d453c47dc522..5922edd416db 100644 --- a/arch/sh/kernel/ptrace_64.c +++ b/arch/sh/kernel/ptrace_64.c @@ -27,6 +27,8 @@ #include <linux/signal.h> #include <linux/syscalls.h> #include <linux/audit.h> +#include <linux/seccomp.h> +#include <linux/tracehook.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -120,18 +122,23 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data) return 0; } +void user_enable_single_step(struct task_struct *child) +{ + struct pt_regs *regs = child->thread.uregs; + + regs->sr |= SR_SSTEP; /* auto-resetting upon exception */ +} + +void user_disable_single_step(struct task_struct *child) +{ + regs->sr &= ~SR_SSTEP; +} long arch_ptrace(struct task_struct *child, long request, long addr, long data) { int ret; switch (request) { - /* when I and D space are separate, these will need to be fixed. */ - case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: - ret = generic_ptrace_peekdata(child, addr, data); - break; - /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { unsigned long tmp; @@ -154,12 +161,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; } - /* when I and D space are separate, this will have to be fixed. */ - case PTRACE_POKETEXT: /* write the word at location addr. */ - case PTRACE_POKEDATA: - ret = generic_ptrace_pokedata(child, addr, data); - break; - case PTRACE_POKEUSR: /* write the word at location addr in the USER area. We must disallow any changes to certain SR bits or u_fpvalid, since @@ -191,58 +192,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } break; - case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ - case PTRACE_CONT: { /* restart after signal. */ - ret = -EIO; - if (!valid_signal(data)) - break; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - wake_up_process(child); - ret = 0; - break; - } - -/* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: { - ret = 0; - if (child->exit_state == EXIT_ZOMBIE) /* already dead */ - break; - child->exit_code = SIGKILL; - wake_up_process(child); - break; - } - - case PTRACE_SINGLESTEP: { /* set the trap flag. */ - struct pt_regs *regs; - - ret = -EIO; - if (!valid_signal(data)) - break; - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - if ((child->ptrace & PT_DTRACE) == 0) { - /* Spurious delayed TF traps may occur */ - child->ptrace |= PT_DTRACE; - } - - regs = child->thread.uregs; - - regs->sr |= SR_SSTEP; /* auto-resetting upon exception */ - - child->exit_code = data; - /* give it a chance to run. */ - wake_up_process(child); - ret = 0; - break; - } - default: ret = ptrace_request(child, request, addr, data); break; @@ -273,38 +222,51 @@ asmlinkage int sh64_ptrace(long request, long pid, long addr, long data) return sys_ptrace(request, pid, addr, data); } -asmlinkage void syscall_trace(struct pt_regs *regs, int entryexit) +static inline int audit_arch(void) { - struct task_struct *tsk = current; + int arch = EM_SH; - if (unlikely(current->audit_context) && entryexit) - audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]), - regs->regs[9]); +#ifdef CONFIG_64BIT + arch |= __AUDIT_ARCH_64BIT; +#endif +#ifdef CONFIG_CPU_LITTLE_ENDIAN + arch |= __AUDIT_ARCH_LE; +#endif - if (!test_thread_flag(TIF_SYSCALL_TRACE) && - !test_thread_flag(TIF_SINGLESTEP)) - goto out; - if (!(tsk->ptrace & PT_PTRACED)) - goto out; - - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) && - !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0)); - - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (tsk->exit_code) { - send_sig(tsk->exit_code, tsk, 1); - tsk->exit_code = 0; - } + return arch; +} -out: - if (unlikely(current->audit_context) && !entryexit) - audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[1], +asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs) +{ + long long ret = 0; + + secure_computing(regs->regs[9]); + + if (test_thread_flag(TIF_SYSCALL_TRACE) && + tracehook_report_syscall_entry(regs)) + /* + * Tracing decided this syscall should not happen. + * We'll return a bogus call number to get an ENOSYS + * error, but leave the original number in regs->regs[0]. + */ + ret = -1LL; + + if (unlikely(current->audit_context)) + audit_syscall_entry(audit_arch(), regs->regs[1], regs->regs[2], regs->regs[3], regs->regs[4], regs->regs[5]); + + return ret ?: regs->regs[9]; +} + +asmlinkage void do_syscall_trace_leave(struct pt_regs *regs) +{ + if (unlikely(current->audit_context)) + audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]), + regs->regs[9]); + + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(regs, 0); } /* Called with interrupts disabled */ @@ -338,5 +300,5 @@ asmlinkage void do_software_break_point(unsigned long long vec, */ void ptrace_disable(struct task_struct *child) { - /* nothing to do.. */ + user_disable_single_step(child); } diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 6339d0c95715..a35207655e7b 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -25,6 +25,7 @@ #include <linux/smp.h> #include <linux/err.h> #include <linux/debugfs.h> +#include <linux/crash_dump.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/page.h> @@ -286,6 +287,25 @@ static void __init setup_memory(void) extern void __init setup_memory(void); #endif +/* + * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by + * is_kdump_kernel() to determine if we are booting after a panic. Hence + * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. + */ +#ifdef CONFIG_CRASH_DUMP +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. + */ +static int __init parse_elfcorehdr(char *arg) +{ + if (!arg) + return -EINVAL; + elfcorehdr_addr = memparse(arg, &arg); + return 0; +} +early_param("elfcorehdr", parse_elfcorehdr); +#endif + void __init setup_arch(char **cmdline_p) { enable_mmu(); diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index 4bbbde895a53..51689d29ad45 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -24,6 +24,7 @@ #include <linux/binfmts.h> #include <linux/freezer.h> #include <linux/io.h> +#include <linux/tracehook.h> #include <asm/system.h> #include <asm/ucontext.h> #include <asm/uaccess.h> @@ -507,14 +508,13 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, switch (regs->regs[0]) { case -ERESTART_RESTARTBLOCK: case -ERESTARTNOHAND: + no_system_call_restart: regs->regs[0] = -EINTR; break; case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { - regs->regs[0] = -EINTR; - break; - } + if (!(ka->sa.sa_flags & SA_RESTART)) + goto no_system_call_restart; /* fallthrough */ case -ERESTARTNOINTR: regs->regs[0] = save_r0; @@ -589,12 +589,15 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) * clear the TIF_RESTORE_SIGMASK flag */ if (test_thread_flag(TIF_RESTORE_SIGMASK)) clear_thread_flag(TIF_RESTORE_SIGMASK); + + tracehook_signal_handler(signr, &info, &ka, regs, + test_thread_flag(TIF_SINGLESTEP)); } return; } - no_signal: +no_signal: /* Did we come from a system call? */ if (regs->tra >= 0) { /* Restart the system call - no handlers present */ @@ -618,9 +621,14 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) } asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, - __u32 thread_info_flags) + unsigned long thread_info_flags) { /* deal with pending signal delivery */ - if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) + if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs, save_r0); + + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 552eb810cd85..1d62dfef77f1 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -22,6 +22,7 @@ #include <linux/ptrace.h> #include <linux/unistd.h> #include <linux/stddef.h> +#include <linux/tracehook.h> #include <asm/ucontext.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -42,7 +43,84 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); +/* + * Note that 'init' is a special process: it doesn't get signals it doesn't + * want to handle. Thus you cannot kill init even with a SIGKILL even by + * mistake. + * + * Note that we go through the signals twice: once to check the signals that + * the kernel can handle, and then we build all the user-level signal handling + * stack-frames in one go after that. + */ +static int do_signal(struct pt_regs *regs, sigset_t *oldset) +{ + siginfo_t info; + int signr; + struct k_sigaction ka; + + /* + * We want the common case to go fast, which + * is why we may in certain cases get here from + * kernel mode. Just return without doing anything + * if so. + */ + if (!user_mode(regs)) + return 1; + + if (try_to_freeze()) + goto no_signal; + + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else if (!oldset) + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, 0); + + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + handle_signal(signr, &info, &ka, oldset, regs); + + /* + * If a signal was successfully delivered, the saved sigmask + * is in its frame, and we can clear the TIF_RESTORE_SIGMASK + * flag. + */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + clear_thread_flag(TIF_RESTORE_SIGMASK); + + tracehook_signal_handler(signr, &info, &ka, regs, 0); + return 1; + } + +no_signal: + /* Did we come from a system call? */ + if (regs->syscall_nr >= 0) { + /* Restart the system call - no handlers present */ + switch (regs->regs[REG_RET]) { + case -ERESTARTNOHAND: + case -ERESTARTSYS: + case -ERESTARTNOINTR: + /* Decode Syscall # */ + regs->regs[REG_RET] = regs->syscall_nr; + regs->pc -= 4; + break; + + case -ERESTART_RESTARTBLOCK: + regs->regs[REG_RET] = __NR_restart_syscall; + regs->pc -= 4; + break; + } + } + + /* No signal to deliver -- put the saved sigmask back */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } + + return 0; +} /* * Atomically swap in the new signal mask, and wait for a signal. @@ -643,14 +721,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, switch (regs->regs[REG_RET]) { case -ERESTART_RESTARTBLOCK: case -ERESTARTNOHAND: + no_system_call_restart: regs->regs[REG_RET] = -EINTR; break; case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { - regs->regs[REG_RET] = -EINTR; - break; - } + if (!(ka->sa.sa_flags & SA_RESTART)) + goto no_system_call_restart; /* fallthrough */ case -ERESTARTNOINTR: /* Decode syscall # */ @@ -673,80 +750,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, spin_unlock_irq(¤t->sighand->siglock); } -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - * - * Note that we go through the signals twice: once to check the signals that - * the kernel can handle, and then we build all the user-level signal handling - * stack-frames in one go after that. - */ -int do_signal(struct pt_regs *regs, sigset_t *oldset) +asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) { - siginfo_t info; - int signr; - struct k_sigaction ka; - - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return 1; - - if (try_to_freeze()) - goto no_signal; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else if (!oldset) - oldset = ¤t->blocked; - - signr = get_signal_to_deliver(&info, &ka, regs, 0); - - if (signr > 0) { - /* Whee! Actually deliver the signal. */ - handle_signal(signr, &info, &ka, oldset, regs); + if (thread_info_flags & _TIF_SIGPENDING) + do_signal(regs, 0); - /* - * If a signal was successfully delivered, the saved sigmask - * is in its frame, and we can clear the TIF_RESTORE_SIGMASK - * flag. - */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); - - return 1; + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); } - -no_signal: - /* Did we come from a system call? */ - if (regs->syscall_nr >= 0) { - /* Restart the system call - no handlers present */ - switch (regs->regs[REG_RET]) { - case -ERESTARTNOHAND: - case -ERESTARTSYS: - case -ERESTARTNOINTR: - /* Decode Syscall # */ - regs->regs[REG_RET] = regs->syscall_nr; - regs->pc -= 4; - break; - - case -ERESTART_RESTARTBLOCK: - regs->regs[REG_RET] = __NR_restart_syscall; - regs->pc -= 4; - break; - } - } - - /* No signal to deliver -- put the saved sigmask back */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } - - return 0; } diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 56d0a7daa34b..9c131cac91a4 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -237,7 +237,6 @@ choice config CACHE_WRITEBACK bool "Write-back" - depends on CPU_SH2A || CPU_SH3 || CPU_SH4 || CPU_SH5 config CACHE_WRITETHROUGH bool "Write-through" diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32 index e295db60b91b..70e0906023cc 100644 --- a/arch/sh/mm/Makefile_32 +++ b/arch/sh/mm/Makefile_32 @@ -5,12 +5,15 @@ obj-y := init.o extable_32.o consistent.o ifndef CONFIG_CACHE_OFF -obj-$(CONFIG_CPU_SH2) += cache-sh2.o -obj-$(CONFIG_CPU_SH3) += cache-sh3.o -obj-$(CONFIG_CPU_SH4) += cache-sh4.o -obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o +cache-$(CONFIG_CPU_SH2) := cache-sh2.o +cache-$(CONFIG_CPU_SH2A) := cache-sh2a.o +cache-$(CONFIG_CPU_SH3) := cache-sh3.o +cache-$(CONFIG_CPU_SH4) := cache-sh4.o +cache-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o endif +obj-y += $(cache-y) + mmu-y := tlb-nommu.o pg-nommu.o mmu-$(CONFIG_MMU) := fault_32.o tlbflush_32.o ioremap_32.o diff --git a/arch/sh/mm/cache-sh2.c b/arch/sh/mm/cache-sh2.c index 6614033f6be9..c4e80d2b764b 100644 --- a/arch/sh/mm/cache-sh2.c +++ b/arch/sh/mm/cache-sh2.c @@ -2,6 +2,7 @@ * arch/sh/mm/cache-sh2.c * * Copyright (C) 2002 Paul Mundt + * Copyright (C) 2008 Yoshinori Sato * * Released under the terms of the GNU GPL v2.0. */ @@ -24,8 +25,15 @@ void __flush_wback_region(void *start, int size) end = ((unsigned long)start + size + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1); for (v = begin; v < end; v+=L1_CACHE_BYTES) { - /* FIXME cache purge */ - ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008); + unsigned long addr = CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0); + int way; + for (way = 0; way < 4; way++) { + unsigned long data = ctrl_inl(addr | (way << 12)); + if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) { + data &= ~SH_CACHE_UPDATED; + ctrl_outl(data, addr | (way << 12)); + } + } } } @@ -37,21 +45,40 @@ void __flush_purge_region(void *start, int size) begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); end = ((unsigned long)start + size + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1); - for (v = begin; v < end; v+=L1_CACHE_BYTES) { - ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008); - } + + for (v = begin; v < end; v+=L1_CACHE_BYTES) + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0) | 0x00000008); } void __flush_invalidate_region(void *start, int size) { +#ifdef CONFIG_CACHE_WRITEBACK + /* + * SH-2 does not support individual line invalidation, only a + * global invalidate. + */ + unsigned long ccr; + unsigned long flags; + local_irq_save(flags); + jump_to_uncached(); + + ccr = ctrl_inl(CCR); + ccr |= CCR_CACHE_INVALIDATE; + ctrl_outl(ccr, CCR); + + back_to_cached(); + local_irq_restore(flags); +#else unsigned long v; unsigned long begin, end; begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); end = ((unsigned long)start + size + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1); - for (v = begin; v < end; v+=L1_CACHE_BYTES) { - ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008); - } -} + for (v = begin; v < end; v+=L1_CACHE_BYTES) + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0) | 0x00000008); +#endif +} diff --git a/arch/sh/mm/cache-sh2a.c b/arch/sh/mm/cache-sh2a.c new file mode 100644 index 000000000000..62c0c5f35120 --- /dev/null +++ b/arch/sh/mm/cache-sh2a.c @@ -0,0 +1,129 @@ +/* + * arch/sh/mm/cache-sh2a.c + * + * Copyright (C) 2008 Yoshinori Sato + * + * Released under the terms of the GNU GPL v2.0. + */ + +#include <linux/init.h> +#include <linux/mm.h> + +#include <asm/cache.h> +#include <asm/addrspace.h> +#include <asm/processor.h> +#include <asm/cacheflush.h> +#include <asm/io.h> + +void __flush_wback_region(void *start, int size) +{ + unsigned long v; + unsigned long begin, end; + unsigned long flags; + + begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); + end = ((unsigned long)start + size + L1_CACHE_BYTES-1) + & ~(L1_CACHE_BYTES-1); + + local_irq_save(flags); + jump_to_uncached(); + + for (v = begin; v < end; v+=L1_CACHE_BYTES) { + unsigned long addr = CACHE_OC_ADDRESS_ARRAY | (v & 0x000007f0); + int way; + for (way = 0; way < 4; way++) { + unsigned long data = ctrl_inl(addr | (way << 11)); + if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) { + data &= ~SH_CACHE_UPDATED; + ctrl_outl(data, addr | (way << 11)); + } + } + } + + back_to_cached(); + local_irq_restore(flags); +} + +void __flush_purge_region(void *start, int size) +{ + unsigned long v; + unsigned long begin, end; + unsigned long flags; + + begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); + end = ((unsigned long)start + size + L1_CACHE_BYTES-1) + & ~(L1_CACHE_BYTES-1); + + local_irq_save(flags); + jump_to_uncached(); + + for (v = begin; v < end; v+=L1_CACHE_BYTES) { + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_OC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008); + } + back_to_cached(); + local_irq_restore(flags); +} + +void __flush_invalidate_region(void *start, int size) +{ + unsigned long v; + unsigned long begin, end; + unsigned long flags; + + begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); + end = ((unsigned long)start + size + L1_CACHE_BYTES-1) + & ~(L1_CACHE_BYTES-1); + local_irq_save(flags); + jump_to_uncached(); + +#ifdef CONFIG_CACHE_WRITEBACK + ctrl_outl(ctrl_inl(CCR) | CCR_OCACHE_INVALIDATE, CCR); + /* I-cache invalidate */ + for (v = begin; v < end; v+=L1_CACHE_BYTES) { + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_IC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008); + } +#else + for (v = begin; v < end; v+=L1_CACHE_BYTES) { + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_IC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008); + ctrl_outl((v & CACHE_PHYSADDR_MASK), + CACHE_OC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008); + } +#endif + back_to_cached(); + local_irq_restore(flags); +} + +/* WBack O-Cache and flush I-Cache */ +void flush_icache_range(unsigned long start, unsigned long end) +{ + unsigned long v; + unsigned long flags; + + start = start & ~(L1_CACHE_BYTES-1); + end = (end + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1); + + local_irq_save(flags); + jump_to_uncached(); + + for (v = start; v < end; v+=L1_CACHE_BYTES) { + unsigned long addr = (v & 0x000007f0); + int way; + /* O-Cache writeback */ + for (way = 0; way < 4; way++) { + unsigned long data = ctrl_inl(CACHE_OC_ADDRESS_ARRAY | addr | (way << 11)); + if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) { + data &= ~SH_CACHE_UPDATED; + ctrl_outl(data, CACHE_OC_ADDRESS_ARRAY | addr | (way << 11)); + } + } + /* I-Cache invalidate */ + ctrl_outl(addr, + CACHE_IC_ADDRESS_ARRAY | addr | 0x00000008); + } + + back_to_cached(); + local_irq_restore(flags); +} diff --git a/arch/sh/mm/tlb-sh5.c b/arch/sh/mm/tlb-sh5.c index f34274a1ded3..dae131243bcc 100644 --- a/arch/sh/mm/tlb-sh5.c +++ b/arch/sh/mm/tlb-sh5.c @@ -15,9 +15,7 @@ #include <asm/mmu_context.h> /** - * sh64_tlb_init - * - * Perform initial setup for the DTLB and ITLB. + * sh64_tlb_init - Perform initial setup for the DTLB and ITLB. */ int __init sh64_tlb_init(void) { @@ -46,9 +44,7 @@ int __init sh64_tlb_init(void) } /** - * sh64_next_free_dtlb_entry - * - * Find the next available DTLB entry + * sh64_next_free_dtlb_entry - Find the next available DTLB entry */ unsigned long long sh64_next_free_dtlb_entry(void) { @@ -56,9 +52,7 @@ unsigned long long sh64_next_free_dtlb_entry(void) } /** - * sh64_get_wired_dtlb_entry - * - * Allocate a wired (locked-in) entry in the DTLB + * sh64_get_wired_dtlb_entry - Allocate a wired (locked-in) entry in the DTLB */ unsigned long long sh64_get_wired_dtlb_entry(void) { @@ -71,12 +65,10 @@ unsigned long long sh64_get_wired_dtlb_entry(void) } /** - * sh64_put_wired_dtlb_entry + * sh64_put_wired_dtlb_entry - Free a wired (locked-in) entry in the DTLB. * * @entry: Address of TLB slot. * - * Free a wired (locked-in) entry in the DTLB. - * * Works like a stack, last one to allocate must be first one to free. */ int sh64_put_wired_dtlb_entry(unsigned long long entry) @@ -115,7 +107,7 @@ int sh64_put_wired_dtlb_entry(unsigned long long entry) } /** - * sh64_setup_tlb_slot + * sh64_setup_tlb_slot - Load up a translation in a wired slot. * * @config_addr: Address of TLB slot. * @eaddr: Virtual address. @@ -154,7 +146,7 @@ inline void sh64_setup_tlb_slot(unsigned long long config_addr, } /** - * sh64_teardown_tlb_slot + * sh64_teardown_tlb_slot - Teardown a translation. * * @config_addr: Address of TLB slot. * diff --git a/arch/sh/tools/Makefile b/arch/sh/tools/Makefile index b5d202be8206..567516b58acc 100644 --- a/arch/sh/tools/Makefile +++ b/arch/sh/tools/Makefile @@ -10,7 +10,7 @@ # Shamelessly cloned from ARM. # -arch/sh/include/asm/machtypes.h: $(src)/gen-mach-types $(src)/mach-types +include/asm-sh/machtypes.h: $(src)/gen-mach-types $(src)/mach-types @echo ' Generating $@' - $(Q)if [ ! -d arch/sh/include/asm ]; then mkdir -p arch/sh/include/asm; fi + $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c index 7797ef6e5e64..22f17a593be7 100644 --- a/drivers/input/keyboard/maple_keyb.c +++ b/drivers/input/keyboard/maple_keyb.c @@ -2,7 +2,7 @@ * SEGA Dreamcast keyboard driver * Based on drivers/usb/usbkbd.c * Copyright YAEGASHI Takeshi, 2001 - * Porting to 2.6 Copyright Adrian McMenamin, 2007 + * Porting to 2.6 Copyright Adrian McMenamin, 2007, 2008 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -45,39 +45,51 @@ struct dc_kbd { }; static const unsigned short dc_kbd_keycode[NR_SCANCODES] = { - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_A, KEY_B, KEY_C, KEY_D, - KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, - KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, - KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, - KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, - KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE, - KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON, KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, - KEY_DOT, KEY_SLASH, KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_A, KEY_B, + KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, + KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U, KEY_V, + KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, + KEY_7, KEY_8, KEY_9, KEY_0, KEY_ENTER, KEY_ESC, KEY_BACKSPACE, + KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE, + KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON, + KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH, + KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ, - KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP, KEY_DELETE, - KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP, - KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS, KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, - KEY_KP3, KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, - KEY_102ND, KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15, - KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, - KEY_F21, KEY_F22, KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, - KEY_STOP, KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE, - KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_KPCOMMA, KEY_RESERVED, KEY_RO, KEY_KATAKANAHIRAGANA , KEY_YEN, - KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA, KEY_ZENKAKUHANKAKU, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, - KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT, KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT, KEY_RIGHTMETA, - KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG, KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, - KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP, KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, - KEY_SCREENLOCK, KEY_REFRESH, KEY_CALC, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED + KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP, + KEY_DELETE, KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN, + KEY_UP, KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS, + KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5, + KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, KEY_102ND, + KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15, + KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, + KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, KEY_STOP, + KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE, + KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_KPCOMMA, KEY_RESERVED, KEY_RO, KEY_KATAKANAHIRAGANA , KEY_YEN, + KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA, + KEY_ZENKAKUHANKAKU, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, + KEY_RESERVED, KEY_RESERVED, KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT, + KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT, + KEY_RIGHTMETA, KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG, + KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, + KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP, + KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, KEY_SCREENLOCK, KEY_REFRESH, + KEY_CALC, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED }; static void dc_scan_kbd(struct dc_kbd *kbd) @@ -127,12 +139,12 @@ static void dc_scan_kbd(struct dc_kbd *kbd) static void dc_kbd_callback(struct mapleq *mq) { struct maple_device *mapledev = mq->dev; - struct dc_kbd *kbd = mapledev->private_data; + struct dc_kbd *kbd = maple_get_drvdata(mapledev); unsigned long *buf = mq->recvbuf; /* - * We should always be getting the lock because the only - * time it may be locked if driver is in cleanup phase. + * We should always get the lock because the only + * time it may be locked is if the driver is in the cleanup phase. */ if (likely(mutex_trylock(&maple_keyb_mutex))) { @@ -145,106 +157,96 @@ static void dc_kbd_callback(struct mapleq *mq) } } -static int dc_kbd_connect(struct maple_device *mdev) +static int probe_maple_kbd(struct device *dev) { + struct maple_device *mdev = to_maple_dev(dev); + struct maple_driver *mdrv = to_maple_driver(dev->driver); int i, error; struct dc_kbd *kbd; - struct input_dev *dev; + struct input_dev *idev; if (!(mdev->function & MAPLE_FUNC_KEYBOARD)) return -EINVAL; kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL); - dev = input_allocate_device(); - if (!kbd || !dev) { + idev = input_allocate_device(); + if (!kbd || !idev) { error = -ENOMEM; goto fail; } - mdev->private_data = kbd; - - kbd->dev = dev; + kbd->dev = idev; memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode)); - dev->name = mdev->product_name; - dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - dev->keycode = kbd->keycode; - dev->keycodesize = sizeof (unsigned short); - dev->keycodemax = ARRAY_SIZE(kbd->keycode); - dev->id.bustype = BUS_HOST; - dev->dev.parent = &mdev->dev; + idev->name = mdev->product_name; + idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + idev->keycode = kbd->keycode; + idev->keycodesize = sizeof(unsigned short); + idev->keycodemax = ARRAY_SIZE(kbd->keycode); + idev->id.bustype = BUS_HOST; + idev->dev.parent = &mdev->dev; for (i = 0; i < NR_SCANCODES; i++) - __set_bit(dc_kbd_keycode[i], dev->keybit); - __clear_bit(KEY_RESERVED, dev->keybit); + __set_bit(dc_kbd_keycode[i], idev->keybit); + __clear_bit(KEY_RESERVED, idev->keybit); - input_set_capability(dev, EV_MSC, MSC_SCAN); - input_set_drvdata(dev, kbd); + input_set_capability(idev, EV_MSC, MSC_SCAN); + input_set_drvdata(idev, kbd); - error = input_register_device(dev); + error = input_register_device(idev); if (error) goto fail; /* Maple polling is locked to VBLANK - which may be just 50/s */ - maple_getcond_callback(mdev, dc_kbd_callback, HZ/50, MAPLE_FUNC_KEYBOARD); - return 0; + maple_getcond_callback(mdev, dc_kbd_callback, HZ/50, + MAPLE_FUNC_KEYBOARD); - fail: - input_free_device(dev); + mdev->driver = mdrv; + + maple_set_drvdata(mdev, kbd); + + return error; + +fail: + input_free_device(idev); kfree(kbd); - mdev->private_data = NULL; + maple_set_drvdata(mdev, NULL); return error; } -static void dc_kbd_disconnect(struct maple_device *mdev) +static int remove_maple_kbd(struct device *dev) { - struct dc_kbd *kbd; + struct maple_device *mdev = to_maple_dev(dev); + struct dc_kbd *kbd = maple_get_drvdata(mdev); mutex_lock(&maple_keyb_mutex); - kbd = mdev->private_data; - mdev->private_data = NULL; input_unregister_device(kbd->dev); kfree(kbd); - mutex_unlock(&maple_keyb_mutex); -} - -/* allow the keyboard to be used */ -static int probe_maple_kbd(struct device *dev) -{ - struct maple_device *mdev = to_maple_dev(dev); - struct maple_driver *mdrv = to_maple_driver(dev->driver); - int error; - - error = dc_kbd_connect(mdev); - if (error) - return error; - - mdev->driver = mdrv; - mdev->registered = 1; + maple_set_drvdata(mdev, NULL); + mutex_unlock(&maple_keyb_mutex); return 0; } static struct maple_driver dc_kbd_driver = { .function = MAPLE_FUNC_KEYBOARD, - .connect = dc_kbd_connect, - .disconnect = dc_kbd_disconnect, .drv = { .name = "Dreamcast_keyboard", .probe = probe_maple_kbd, - }, + .remove = remove_maple_kbd, + }, }; static int __init dc_kbd_init(void) { - return maple_driver_register(&dc_kbd_driver.drv); + return maple_driver_register(&dc_kbd_driver); } static void __exit dc_kbd_exit(void) { - driver_unregister(&dc_kbd_driver.drv); + maple_driver_unregister(&dc_kbd_driver); } module_init(dc_kbd_init); diff --git a/drivers/net/stnic.c b/drivers/net/stnic.c index b65be5d70fec..2ed0bd596815 100644 --- a/drivers/net/stnic.c +++ b/drivers/net/stnic.c @@ -19,7 +19,7 @@ #include <asm/system.h> #include <asm/io.h> -#include <asm/se.h> +#include <mach-se/mach/se.h> #include <asm/machvec.h> #ifdef CONFIG_SH_STANDARD_BIOS #include <asm/sh_bios.h> diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c index be97789fa5fd..d1812d32f47d 100644 --- a/drivers/sh/maple/maple.c +++ b/drivers/sh/maple/maple.c @@ -2,6 +2,7 @@ * Core maple bus functionality * * Copyright (C) 2007, 2008 Adrian McMenamin + * Copyright (C) 2001 - 2008 Paul Mundt * * Based on 2.4 code by: * @@ -31,7 +32,7 @@ #include <mach/dma.h> #include <mach/sysasic.h> -MODULE_AUTHOR("Yaegshi Takeshi, Paul Mundt, M.R. Brown, Adrian McMenamin"); +MODULE_AUTHOR("Yaegashi Takeshi, Paul Mundt, M. R. Brown, Adrian McMenamin"); MODULE_DESCRIPTION("Maple bus driver for Dreamcast"); MODULE_LICENSE("GPL v2"); MODULE_SUPPORTED_DEVICE("{{SEGA, Dreamcast/Maple}}"); @@ -65,19 +66,36 @@ static bool checked[4]; static struct maple_device *baseunits[4]; /** - * maple_driver_register - register a device driver - * automatically makes the driver bus a maple bus - * @drv: the driver to be registered + * maple_driver_register - register a maple driver + * @drv: maple driver to be registered. + * + * Registers the passed in @drv, while updating the bus type. + * Devices with matching function IDs will be automatically probed. */ -int maple_driver_register(struct device_driver *drv) +int maple_driver_register(struct maple_driver *drv) { if (!drv) return -EINVAL; - drv->bus = &maple_bus_type; - return driver_register(drv); + + drv->drv.bus = &maple_bus_type; + + return driver_register(&drv->drv); } EXPORT_SYMBOL_GPL(maple_driver_register); +/** + * maple_driver_unregister - unregister a maple driver. + * @drv: maple driver to unregister. + * + * Cleans up after maple_driver_register(). To be invoked in the exit + * path of any module drivers. + */ +void maple_driver_unregister(struct maple_driver *drv) +{ + driver_unregister(&drv->drv); +} +EXPORT_SYMBOL_GPL(maple_driver_unregister); + /* set hardware registers to enable next round of dma */ static void maplebus_dma_reset(void) { @@ -129,13 +147,13 @@ static void maple_release_device(struct device *dev) kfree(mdev); } -/* +/** * maple_add_packet - add a single instruction to the queue - * @mdev - maple device - * @function - function on device being queried - * @command - maple command to add - * @length - length of command string (in 32 bit words) - * @data - remainder of command string + * @mdev: maple device + * @function: function on device being queried + * @command: maple command to add + * @length: length of command string (in 32 bit words) + * @data: remainder of command string */ int maple_add_packet(struct maple_device *mdev, u32 function, u32 command, size_t length, void *data) @@ -176,14 +194,15 @@ out: } EXPORT_SYMBOL_GPL(maple_add_packet); -/* +/** * maple_add_packet_sleeps - add a single instruction to the queue - * - waits for lock to be free - * @mdev - maple device - * @function - function on device being queried - * @command - maple command to add - * @length - length of command string (in 32 bit words) - * @data - remainder of command string + * @mdev: maple device + * @function: function on device being queried + * @command: maple command to add + * @length: length of command string (in 32 bit words) + * @data: remainder of command string + * + * Same as maple_add_packet(), but waits for the lock to become free. */ int maple_add_packet_sleeps(struct maple_device *mdev, u32 function, u32 command, size_t length, void *data) @@ -724,11 +743,9 @@ static int maple_get_dma_buffer(void) static int match_maple_bus_driver(struct device *devptr, struct device_driver *drvptr) { - struct maple_driver *maple_drv; - struct maple_device *maple_dev; + struct maple_driver *maple_drv = to_maple_driver(drvptr); + struct maple_device *maple_dev = to_maple_dev(devptr); - maple_drv = container_of(drvptr, struct maple_driver, drv); - maple_dev = container_of(devptr, struct maple_device, dev); /* Trap empty port case */ if (maple_dev->devinfo.function == 0xFFFFFFFF) return 0; diff --git a/include/linux/maple.h b/include/linux/maple.h index c853b1066018..c23d3f51ba40 100644 --- a/include/linux/maple.h +++ b/include/linux/maple.h @@ -51,7 +51,6 @@ struct maple_devinfo { struct maple_device { struct maple_driver *driver; struct mapleq *mq; - void *private_data; void (*callback) (struct mapleq * mq); unsigned long when, interval, function; struct maple_devinfo devinfo; @@ -70,7 +69,9 @@ void maple_getcond_callback(struct maple_device *dev, void (*callback) (struct mapleq * mq), unsigned long interval, unsigned long function); -int maple_driver_register(struct device_driver *drv); +int maple_driver_register(struct maple_driver *); +void maple_driver_unregister(struct maple_driver *); + int maple_add_packet_sleeps(struct maple_device *mdev, u32 function, u32 command, u32 length, void *data); void maple_clear_dev(struct maple_device *mdev); @@ -78,4 +79,7 @@ void maple_clear_dev(struct maple_device *mdev); #define to_maple_dev(n) container_of(n, struct maple_device, dev) #define to_maple_driver(n) container_of(n, struct maple_driver, drv) +#define maple_get_drvdata(d) dev_get_drvdata(&(d)->dev) +#define maple_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p)) + #endif /* __LINUX_MAPLE_H */ diff --git a/mm/nommu.c b/mm/nommu.c index 5edccd9c9218..ed75bc962fbe 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -266,6 +266,27 @@ void *vmalloc_node(unsigned long size, int node) } EXPORT_SYMBOL(vmalloc_node); +#ifndef PAGE_KERNEL_EXEC +# define PAGE_KERNEL_EXEC PAGE_KERNEL +#endif + +/** + * vmalloc_exec - allocate virtually contiguous, executable memory + * @size: allocation size + * + * Kernel-internal function to allocate enough pages to cover @size + * the page level allocator and map them into contiguous and + * executable kernel virtual space. + * + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ + +void *vmalloc_exec(unsigned long size) +{ + return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC); +} + /** * vmalloc_32 - allocate virtually contiguous memory (32bit addressable) * @size: allocation size |
