diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-04 09:16:03 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-04 09:16:03 -0800 |
commit | d2fc0bacd5c438cb459fdf531eff00ab18422a00 (patch) | |
tree | d0ea52e4d2ad2fac12e19eaf6891c6af98353cfc | |
parent | 93890b71a34f9490673a6edd56b61c2124215e46 (diff) | |
parent | 795d45b22c079946332bf3825afefe5a981a97b6 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits)
x86: fix RTC lockdep warning: potential hardirq recursion
x86: cpa, micro-optimization
x86: cpa, clean up code flow
x86: cpa, eliminate CPA_ enum
x86: cpa, cleanups
x86: implement gbpages support in change_page_attr()
x86: support gbpages in pagetable dump
x86: add gbpages support to lookup_address
x86: add pgtable accessor functions for gbpages
x86: add PUD_PAGE_SIZE
x86: add feature macros for the gbpages cpuid bit
x86: switch direct mapping setup over to set_pte
x86: fix page-present check in cpa_flush_range
x86: remove cpa warning
x86: remove now unused clear_kernel_mapping
x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
x86: cpa selftest, skip non present entries
x86: CPA fix pagetable split
x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
x86: cpa, fix lookup_address
...
68 files changed, 821 insertions, 814 deletions
diff --git a/Documentation/x86_64/00-INDEX b/Documentation/x86_64/00-INDEX new file mode 100644 index 000000000000..92fc20ab5f0e --- /dev/null +++ b/Documentation/x86_64/00-INDEX @@ -0,0 +1,16 @@ +00-INDEX + - This file +boot-options.txt + - AMD64-specific boot options. +cpu-hotplug-spec + - Firmware support for CPU hotplug under Linux/x86-64 +fake-numa-for-cpusets + - Using numa=fake and CPUSets for Resource Management +kernel-stacks + - Context-specific per-processor interrupt stacks. +machinecheck + - Configurable sysfs parameters for the x86-64 machine check code. +mm.txt + - Memory layout of x86-64 (4 level page tables, 46 bits physical). +uefi.txt + - Booting Linux via Unified Extensible Firmware Interface. diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 99af1272ab1d..59eef1c7fdaa 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -306,6 +306,7 @@ config X86_RDC321X select M486 select X86_REBOOTFIXUPS select GENERIC_GPIO + select LEDS_CLASS select LEDS_GPIO help This option is needed for RDC R-321x system-on-chip, also known diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 8978e98bed5b..364865b1b08d 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -92,7 +92,6 @@ KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) LDFLAGS := -m elf_$(UTS_MACHINE) -OBJCOPYFLAGS := -O binary -R .note -R .comment -S # Speed up the build KBUILD_CFLAGS += -pipe diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 349b81a39c40..f88458e83ef0 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -26,7 +26,7 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA #RAMDISK := -DRAMDISK=512 targets := vmlinux.bin setup.bin setup.elf zImage bzImage -subdir- := compressed +subdir- := compressed setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o setup-y += header.o main.o mca.o memory.o pm.o pmjump.o @@ -43,9 +43,17 @@ setup-y += video-vesa.o setup-y += video-bios.o targets += $(setup-y) -hostprogs-y := tools/build +hostprogs-y := mkcpustr tools/build -HOSTCFLAGS_build.o := $(LINUXINCLUDE) +HOST_EXTRACFLAGS += $(LINUXINCLUDE) + +$(obj)/cpu.o: $(obj)/cpustr.h + +quiet_cmd_cpustr = CPUSTR $@ + cmd_cpustr = $(obj)/mkcpustr > $@ +targets += cpustr.h +$(obj)/cpustr.h: $(obj)/mkcpustr FORCE + $(call if_changed,cpustr) # --------------------------------------------------------------------------- @@ -80,6 +88,7 @@ $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \ $(call if_changed,image) @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' +OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) @@ -90,7 +99,6 @@ $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld) OBJCOPYFLAGS_setup.bin := -O binary - $(obj)/setup.bin: $(obj)/setup.elf FORCE $(call if_changed,objcopy) @@ -98,7 +106,7 @@ $(obj)/compressed/vmlinux: FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel -FDARGS = +FDARGS = # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel FDINITRD = diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index fe24ceabd909..d2b9f3bb87c0 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -22,6 +22,7 @@ $(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $ $(call if_changed,ld) @: +OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 1ccb38a7f0d2..e8657b98c902 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -80,8 +80,8 @@ startup_32: #ifdef CONFIG_RELOCATABLE movl %ebp, %ebx - addl $(LARGE_PAGE_SIZE -1), %ebx - andl $LARGE_PAGE_MASK, %ebx + addl $(PMD_PAGE_SIZE -1), %ebx + andl $PMD_PAGE_MASK, %ebx #else movl $CONFIG_PHYSICAL_START, %ebx #endif @@ -220,8 +220,8 @@ ENTRY(startup_64) /* Start with the delta to where the kernel will run at. */ #ifdef CONFIG_RELOCATABLE leaq startup_32(%rip) /* - $startup_32 */, %rbp - addq $(LARGE_PAGE_SIZE - 1), %rbp - andq $LARGE_PAGE_MASK, %rbp + addq $(PMD_PAGE_SIZE - 1), %rbp + andq $PMD_PAGE_MASK, %rbp movq %rbp, %rbx #else movq $CONFIG_PHYSICAL_START, %rbp diff --git a/arch/x86/boot/cpu.c b/arch/x86/boot/cpu.c index 2a5c32da5852..00e19edd852c 100644 --- a/arch/x86/boot/cpu.c +++ b/arch/x86/boot/cpu.c @@ -1,7 +1,7 @@ /* -*- linux-c -*- ------------------------------------------------------- * * * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved + * Copyright 2007-2008 rPath, Inc. - All Rights Reserved * * This file is part of the Linux kernel, and is made available under * the terms of the GNU General Public License version 2. @@ -9,7 +9,7 @@ * ----------------------------------------------------------------------- */ /* - * arch/i386/boot/cpu.c + * arch/x86/boot/cpu.c * * Check for obligatory CPU features and abort if the features are not * present. @@ -19,6 +19,8 @@ #include "bitops.h" #include <asm/cpufeature.h> +#include "cpustr.h" + static char *cpu_name(int level) { static char buf[6]; @@ -35,6 +37,7 @@ int validate_cpu(void) { u32 *err_flags; int cpu_level, req_level; + const unsigned char *msg_strs; check_cpu(&cpu_level, &req_level, &err_flags); @@ -51,13 +54,26 @@ int validate_cpu(void) puts("This kernel requires the following features " "not present on the CPU:\n"); + msg_strs = (const unsigned char *)x86_cap_strs; + for (i = 0; i < NCAPINTS; i++) { u32 e = err_flags[i]; for (j = 0; j < 32; j++) { - if (e & 1) - printf("%d:%d ", i, j); - + int n = (i << 5)+j; + if (*msg_strs < n) { + /* Skip to the next string */ + do { + msg_strs++; + } while (*msg_strs); + msg_strs++; + } + if (e & 1) { + if (*msg_strs == n && msg_strs[1]) + printf("%s ", msg_strs+1); + else + printf("%d:%d ", i, j); + } e >>= 1; } } diff --git a/arch/x86/boot/mkcpustr.c b/arch/x86/boot/mkcpustr.c new file mode 100644 index 000000000000..bbe76953bae9 --- /dev/null +++ b/arch/x86/boot/mkcpustr.c @@ -0,0 +1,49 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2008 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2 or (at your + * option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +/* + * This is a host program to preprocess the CPU strings into a + * compact format suitable for the setup code. + */ + +#include <stdio.h> + +#include "../kernel/cpu/feature_names.c" + +#if NCAPFLAGS > 8 +# error "Need to adjust the boot code handling of CPUID strings" +#endif + +int main(void) +{ + int i; + const char *str; + + printf("static const char x86_cap_strs[] = \n"); + + for (i = 0; i < NCAPINTS*32; i++) { + str = x86_cap_flags[i]; + + if (i == NCAPINTS*32-1) { + /* The last entry must be unconditional; this + also consumes the compiler-added null character */ + if (!str) + str = ""; + printf("\t\"\\x%02x\"\"%s\"\n", i, str); + } else if (str) { + printf("#if REQUIRED_MASK%d & (1 << %d)\n" + "\t\"\\x%02x\"\"%s\\0\"\n" + "#endif\n", + i >> 5, i & 31, i, str); + } + } + printf("\t;\n"); + return 0; +} diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 6f813009d44b..21dc1a061bf1 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -37,7 +37,8 @@ obj-$(CONFIG_X86_MSR) += msr.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_PCI) += early-quirks.o -obj-$(CONFIG_APM) += apm_32.o +apm-y := apm_32.o +obj-$(CONFIG_APM) += apm.o obj-$(CONFIG_X86_SMP) += smp_$(BITS).o smpboot_$(BITS).o tsc_sync.o obj-$(CONFIG_X86_32_SMP) += smpcommon_32.o obj-$(CONFIG_X86_64_SMP) += smp_64.o smpboot_64.o tsc_sync.o @@ -74,7 +75,8 @@ ifdef CONFIG_INPUT_PCSPKR obj-y += pcspeaker.o endif -obj-$(CONFIG_SCx200) += scx200_32.o +obj-$(CONFIG_SCx200) += scx200.o +scx200-y += scx200_32.o ### # 64 bit specific files diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index cfdb2f3bd763..a0c4d7c5dbd7 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -3,6 +3,7 @@ # obj-y := intel_cacheinfo.o addon_cpuid_features.o +obj-y += feature_names.o obj-$(CONFIG_X86_32) += common.o proc.o bugs.o obj-$(CONFIG_X86_32) += amd.o diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index b7b2142b58e7..d9313d9adced 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -623,16 +623,6 @@ cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; * They will insert themselves into the cpu_devs structure. * Then, when cpu_init() is called, we can just iterate over that array. */ - -extern int intel_cpu_init(void); -extern int cyrix_init_cpu(void); -extern int nsc_init_cpu(void); -extern int amd_init_cpu(void); -extern int centaur_init_cpu(void); -extern int transmeta_init_cpu(void); -extern int nexgen_init_cpu(void); -extern int umc_init_cpu(void); - void __init early_cpu_init(void) { intel_cpu_init(); diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h index ad6527a5beb1..e0b38c33d842 100644 --- a/arch/x86/kernel/cpu/cpu.h +++ b/arch/x86/kernel/cpu/cpu.h @@ -27,3 +27,12 @@ extern void display_cacheinfo(struct cpuinfo_x86 *c); extern void early_init_intel(struct cpuinfo_x86 *c); extern void early_init_amd(struct cpuinfo_x86 *c); +/* Specific CPU type init functions */ +int intel_cpu_init(void); +int amd_init_cpu(void); +int cyrix_init_cpu(void); +int nsc_init_cpu(void); +int centaur_init_cpu(void); +int transmeta_init_cpu(void); +int nexgen_init_cpu(void); +int umc_init_cpu(void); diff --git a/arch/x86/kernel/cpu/feature_names.c b/arch/x86/kernel/cpu/feature_names.c new file mode 100644 index 000000000000..ee975ac6bbcb --- /dev/null +++ b/arch/x86/kernel/cpu/feature_names.c @@ -0,0 +1,83 @@ +/* + * Strings for the various x86 capability flags. + * + * This file must not contain any executable code. + */ + +#include "asm/cpufeature.h" + +/* + * These flag bits must match the definitions in <asm/cpufeature.h>. + * NULL means this bit is undefined or reserved; either way it doesn't + * have meaning as far as Linux is concerned. Note that it's important + * to realize there is a difference between this table and CPUID -- if + * applications want to get the raw CPUID data, they should access + * /dev/cpu/<cpu_nr>/cpuid instead. + */ +const char * const x86_cap_flags[NCAPINTS*32] = { + /* Intel-defined */ + "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", + "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", + "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", + "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", + + /* AMD-defined */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL, + NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", + "3dnowext", "3dnow", + + /* Transmeta-defined */ + "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Other (Linux-defined) */ + "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", + NULL, NULL, NULL, NULL, + "constant_tsc", "up", NULL, "arch_perfmon", + "pebs", "bts", NULL, NULL, + "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Intel-defined (#2) */ + "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", + "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, + NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt", + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* VIA/Cyrix/Centaur-defined */ + NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", + "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* AMD-defined (#2) */ + "lahf_lm", "cmp_legacy", "svm", "extapic", + "cr8_legacy", "abm", "sse4a", "misalignsse", + "3dnowprefetch", "osvw", "ibs", "sse5", + "skinit", "wdt", NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Auxiliary (Linux-defined) */ + "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +}; + +const char *const x86_power_flags[32] = { + "ts", /* temperature sensor */ + "fid", /* frequency id control */ + "vid", /* voltage id control */ + "ttp", /* thermal trip */ + "tm", + "stc", + "100mhzsteps", + "hwpstate", + "", /* tsc invariant mapped to constant_tsc */ + /* nothing */ +}; diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index d1c372b018db..fae31ce747bd 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -13,6 +13,7 @@ #include <asm/uaccess.h> #include <asm/ptrace.h> #include <asm/ds.h> +#include <asm/bugs.h> #include "cpu.h" diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c index 8e139c70f888..ff14c320040c 100644 --- a/arch/x86/kernel/cpu/mtrr/cyrix.c +++ b/arch/x86/kernel/cpu/mtrr/cyrix.c @@ -7,8 +7,6 @@ #include <asm/processor-flags.h> #include "mtrr.h" -int arr3_protected; - static void cyrix_get_arr(unsigned int reg, unsigned long *base, unsigned long *size, mtrr_type * type) @@ -99,8 +97,6 @@ cyrix_get_free_region(unsigned long base, unsigned long size, int replace_reg) case 4: return replace_reg; case 3: - if (arr3_protected) - break; case 2: case 1: case 0: @@ -115,8 +111,6 @@ cyrix_get_free_region(unsigned long base, unsigned long size, int replace_reg) } else { for (i = 0; i < 7; i++) { cyrix_get_arr(i, &lbase, &lsize, <ype); - if ((i == 3) && arr3_protected) - continue; if (lsize == 0) return i; } @@ -260,107 +254,6 @@ static void cyrix_set_all(void) post_set(); } -#if 0 -/* - * On Cyrix 6x86(MX) and M II the ARR3 is special: it has connection - * with the SMM (System Management Mode) mode. So we need the following: - * Check whether SMI_LOCK (CCR3 bit 0) is set - * if it is set, write a warning message: ARR3 cannot be changed! - * (it cannot be changed until the next processor reset) - * if it is reset, then we can change it, set all the needed bits: - * - disable access to SMM memory through ARR3 range (CCR1 bit 7 reset) - * - disable access to SMM memory (CCR1 bit 2 reset) - * - disable SMM mode (CCR1 bit 1 reset) - * - disable write protection of ARR3 (CCR6 bit 1 reset) - * - (maybe) disable ARR3 - * Just to be sure, we enable ARR usage by the processor (CCR5 bit 5 set) - */ -static void __init -cyrix_arr_init(void) -{ - struct set_mtrr_context ctxt; - unsigned char ccr[7]; - int ccrc[7] = { 0, 0, 0, 0, 0, 0, 0 }; -#ifdef CONFIG_SMP - int i; -#endif - - /* flush cache and enable MAPEN */ - set_mtrr_prepare_save(&ctxt); - set_mtrr_cache_disable(&ctxt); - - /* Save all CCRs locally */ - ccr[0] = getCx86(CX86_CCR0); - ccr[1] = getCx86(CX86_CCR1); - ccr[2] = getCx86(CX86_CCR2); - ccr[3] = ctxt.ccr3; - ccr[4] = getCx86(CX86_CCR4); - ccr[5] = getCx86(CX86_CCR5); - ccr[6] = getCx86(CX86_CCR6); - - if (ccr[3] & 1) { - ccrc[3] = 1; - arr3_protected = 1; - } else { - /* Disable SMM mode (bit 1), access to SMM memory (bit 2) and - * access to SMM memory through ARR3 (bit 7). - */ - if (ccr[1] & 0x80) { - ccr[1] &= 0x7f; - ccrc[1] |= 0x80; - } - if (ccr[1] & 0x04) { - ccr[1] &= 0xfb; - ccrc[1] |= 0x04; - } - if (ccr[1] & 0x02) { - ccr[1] &= 0xfd; - ccrc[1] |= 0x02; - } - arr3_protected = 0; - if (ccr[6] & 0x02) { - ccr[6] &= 0xfd; - ccrc[6] = 1; /* Disable write protection of ARR3 */ - setCx86(CX86_CCR6, ccr[6]); - } - /* Disable ARR3. This is safe now that we disabled SMM. */ - /* cyrix_set_arr_up (3, 0, 0, 0, FALSE); */ - } - /* If we changed CCR1 in memory, change it in the processor, too. */ - if (ccrc[1]) - setCx86(CX86_CCR1, ccr[1]); - - /* Enable ARR usage by the processor */ - if (!(ccr[5] & 0x20)) { - ccr[5] |= 0x20; - ccrc[5] = 1; |