summaryrefslogtreecommitdiffstats
path: root/arch/x86/include
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 01:21:45 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 01:21:45 +0200
commit002e44bfb596665178cbf83586faeb8349ea6b9b (patch)
treea33b3f3a3b8709d0ba32c57a7ec62d018bd528af /arch/x86/include
parentMerge branch 'sched-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff)
parentx86, asm, cleanup: Replace open-coded control register values with symbolic (diff)
downloadlinux-002e44bfb596665178cbf83586faeb8349ea6b9b.tar.xz
linux-002e44bfb596665178cbf83586faeb8349ea6b9b.zip
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull asm/x86 changes from Ingo Molnar: "Misc changes, with a bigger processor-flags cleanup/reorganization by Peter Anvin" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, asm, cleanup: Replace open-coded control register values with symbolic x86, processor-flags: Fix the datatypes and add bit number defines x86: Rename X86_CR4_RDWRGSFS to X86_CR4_FSGSBASE x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED linux/const.h: Add _BITUL() and _BITULL() x86/vdso: Convert use of typedef ctl_table to struct ctl_table x86: __force_order doesn't need to be an actual variable
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/kvm_host.h2
-rw-r--r--arch/x86/include/asm/special_insns.h2
-rw-r--r--arch/x86/include/uapi/asm/processor-flags.h154
3 files changed, 106 insertions, 52 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 3741c653767c..af9c5525434d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -59,7 +59,7 @@
(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
| X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
| X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
- | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_RDWRGSFS \
+ | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
| X86_CR4_OSXMMEXCPT | X86_CR4_VMXE))
#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index 41fc93a2e225..2f4d924fe6c9 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -16,7 +16,7 @@ static inline void native_clts(void)
* all loads stores around it, which can hurt performance. Solution is to
* use a variable and mimic reads and writes to it to enforce serialization
*/
-static unsigned long __force_order;
+extern unsigned long __force_order;
static inline unsigned long native_read_cr0(void)
{
diff --git a/arch/x86/include/uapi/asm/processor-flags.h b/arch/x86/include/uapi/asm/processor-flags.h
index 54991a746043..180a0c3c224d 100644
--- a/arch/x86/include/uapi/asm/processor-flags.h
+++ b/arch/x86/include/uapi/asm/processor-flags.h
@@ -2,75 +2,129 @@
#define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
/* Various flags defined: can be included from assembler. */
+#include <linux/const.h>
+
/*
* EFLAGS bits
*/
-#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
-#define X86_EFLAGS_BIT1 0x00000002 /* Bit 1 - always on */
-#define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
-#define X86_EFLAGS_AF 0x00000010 /* Auxiliary carry Flag */
-#define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
-#define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
-#define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
-#define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
-#define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
-#define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
-#define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
-#define X86_EFLAGS_NT 0x00004000 /* Nested Task */
-#define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
-#define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
-#define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
-#define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
-#define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
-#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
+#define X86_EFLAGS_CF_BIT 0 /* Carry Flag */
+#define X86_EFLAGS_CF _BITUL(X86_EFLAGS_CF_BIT)
+#define X86_EFLAGS_FIXED_BIT 1 /* Bit 1 - always on */
+#define X86_EFLAGS_FIXED _BITUL(X86_EFLAGS_FIXED_BIT)
+#define X86_EFLAGS_PF_BIT 2 /* Parity Flag */
+#define X86_EFLAGS_PF _BITUL(X86_EFLAGS_PF_BIT)
+#define X86_EFLAGS_AF_BIT 4 /* Auxiliary carry Flag */
+#define X86_EFLAGS_AF _BITUL(X86_EFLAGS_AF_BIT)
+#define X86_EFLAGS_ZF_BIT 6 /* Zero Flag */
+#define X86_EFLAGS_ZF _BITUL(X86_EFLAGS_ZF_BIT)
+#define X86_EFLAGS_SF_BIT 7 /* Sign Flag */
+#define X86_EFLAGS_SF _BITUL(X86_EFLAGS_SF_BIT)
+#define X86_EFLAGS_TF_BIT 8 /* Trap Flag */
+#define X86_EFLAGS_TF _BITUL(X86_EFLAGS_TF_BIT)
+#define X86_EFLAGS_IF_BIT 9 /* Interrupt Flag */
+#define X86_EFLAGS_IF _BITUL(X86_EFLAGS_IF_BIT)
+#define X86_EFLAGS_DF_BIT 10 /* Direction Flag */
+#define X86_EFLAGS_DF _BITUL(X86_EFLAGS_DF_BIT)
+#define X86_EFLAGS_OF_BIT 11 /* Overflow Flag */
+#define X86_EFLAGS_OF _BITUL(X86_EFLAGS_OF_BIT)
+#define X86_EFLAGS_IOPL_BIT 12 /* I/O Privilege Level (2 bits) */
+#define X86_EFLAGS_IOPL (_AC(3,UL) << X86_EFLAGS_IOPL_BIT)
+#define X86_EFLAGS_NT_BIT 14 /* Nested Task */
+#define X86_EFLAGS_NT _BITUL(X86_EFLAGS_NT_BIT)
+#define X86_EFLAGS_RF_BIT 16 /* Resume Flag */
+#define X86_EFLAGS_RF _BITUL(X86_EFLAGS_RF_BIT)
+#define X86_EFLAGS_VM_BIT 17 /* Virtual Mode */
+#define X86_EFLAGS_VM _BITUL(X86_EFLAGS_VM_BIT)
+#define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */
+#define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT)
+#define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */
+#define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT)
+#define X86_EFLAGS_VIF_BIT 19 /* Virtual Interrupt Flag */
+#define X86_EFLAGS_VIF _BITUL(X86_EFLAGS_VIF_BIT)
+#define X86_EFLAGS_VIP_BIT 20 /* Virtual Interrupt Pending */
+#define X86_EFLAGS_VIP _BITUL(X86_EFLAGS_VIP_BIT)
+#define X86_EFLAGS_ID_BIT 21 /* CPUID detection */
+#define X86_EFLAGS_ID _BITUL(X86_EFLAGS_ID_BIT)
/*
* Basic CPU control in CR0
*/
-#define X86_CR0_PE 0x00000001 /* Protection Enable */
-#define X86_CR0_MP 0x00000002 /* Monitor Coprocessor */
-#define X86_CR0_EM 0x00000004 /* Emulation */
-#define X86_CR0_TS 0x00000008 /* Task Switched */
-#define X86_CR0_ET 0x00000010 /* Extension Type */
-#define X86_CR0_NE 0x00000020 /* Numeric Error */
-#define X86_CR0_WP 0x00010000 /* Write Protect */
-#define X86_CR0_AM 0x00040000 /* Alignment Mask */
-#define X86_CR0_NW 0x20000000 /* Not Write-through */
-#define X86_CR0_CD 0x40000000 /* Cache Disable */
-#define X86_CR0_PG 0x80000000 /* Paging */
+#define X86_CR0_PE_BIT 0 /* Protection Enable */
+#define X86_CR0_PE _BITUL(X86_CR0_PE_BIT)
+#define X86_CR0_MP_BIT 1 /* Monitor Coprocessor */
+#define X86_CR0_MP _BITUL(X86_CR0_MP_BIT)
+#define X86_CR0_EM_BIT 2 /* Emulation */
+#define X86_CR0_EM _BITUL(X86_CR0_EM_BIT)
+#define X86_CR0_TS_BIT 3 /* Task Switched */
+#define X86_CR0_TS _BITUL(X86_CR0_TS_BIT)
+#define X86_CR0_ET_BIT 4 /* Extension Type */
+#define X86_CR0_ET _BITUL(X86_CR0_ET_BIT)
+#define X86_CR0_NE_BIT 5 /* Numeric Error */
+#define X86_CR0_NE _BITUL(X86_CR0_NE_BIT)
+#define X86_CR0_WP_BIT 16 /* Write Protect */
+#define X86_CR0_WP _BITUL(X86_CR0_WP_BIT)
+#define X86_CR0_AM_BIT 18 /* Alignment Mask */
+#define X86_CR0_AM _BITUL(X86_CR0_AM_BIT)
+#define X86_CR0_NW_BIT 29 /* Not Write-through */
+#define X86_CR0_NW _BITUL(X86_CR0_NW_BIT)
+#define X86_CR0_CD_BIT 30 /* Cache Disable */
+#define X86_CR0_CD _BITUL(X86_CR0_CD_BIT)
+#define X86_CR0_PG_BIT 31 /* Paging */
+#define X86_CR0_PG _BITUL(X86_CR0_PG_BIT)
/*
* Paging options in CR3
*/
-#define X86_CR3_PWT 0x00000008 /* Page Write Through */
-#define X86_CR3_PCD 0x00000010 /* Page Cache Disable */
-#define X86_CR3_PCID_MASK 0x00000fff /* PCID Mask */
+#define X86_CR3_PWT_BIT 3 /* Page Write Through */
+#define X86_CR3_PWT _BITUL(X86_CR3_PWT_BIT)
+#define X86_CR3_PCD_BIT 4 /* Page Cache Disable */
+#define X86_CR3_PCD _BITUL(X86_CR3_PCD_BIT)
+#define X86_CR3_PCID_MASK _AC(0x00000fff,UL) /* PCID Mask */
/*
* Intel CPU features in CR4
*/
-#define X86_CR4_VME 0x00000001 /* enable vm86 extensions */
-#define X86_CR4_PVI 0x00000002 /* virtual interrupts flag enable */
-#define X86_CR4_TSD 0x00000004 /* disable time stamp at ipl 3 */
-#define X86_CR4_DE 0x00000008 /* enable debugging extensions */
-#define X86_CR4_PSE 0x00000010 /* enable page size extensions */
-#define X86_CR4_PAE 0x00000020 /* enable physical address extensions */
-#define X86_CR4_MCE 0x00000040 /* Machine check enable */
-#define X86_CR4_PGE 0x00000080 /* enable global pages */
-#define X86_CR4_PCE 0x00000100 /* enable performance counters at ipl 3 */
-#define X86_CR4_OSFXSR 0x00000200 /* enable fast FPU save and restore */
-#define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */
-#define X86_CR4_VMXE 0x00002000 /* enable VMX virtualization */
-#define X86_CR4_RDWRGSFS 0x00010000 /* enable RDWRGSFS support */
-#define X86_CR4_PCIDE 0x00020000 /* enable PCID support */
-#define X86_CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */
-#define X86_CR4_SMEP 0x00100000 /* enable SMEP support */
-#define X86_CR4_SMAP 0x00200000 /* enable SMAP support */
+#define X86_CR4_VME_BIT 0 /* enable vm86 extensions */
+#define X86_CR4_VME _BITUL(X86_CR4_VME_BIT)
+#define X86_CR4_PVI_BIT 1 /* virtual interrupts flag enable */
+#define X86_CR4_PVI _BITUL(X86_CR4_PVI_BIT)
+#define X86_CR4_TSD_BIT 2 /* disable time stamp at ipl 3 */
+#define X86_CR4_TSD _BITUL(X86_CR4_TSD_BIT)
+#define X86_CR4_DE_BIT 3 /* enable debugging extensions */
+#define X86_CR4_DE _BITUL(X86_CR4_DE_BIT)
+#define X86_CR4_PSE_BIT 4 /* enable page size extensions */
+#define X86_CR4_PSE _BITUL(X86_CR4_PSE_BIT)
+#define X86_CR4_PAE_BIT 5 /* enable physical address extensions */
+#define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT)
+#define X86_CR4_MCE_BIT 6 /* Machine check enable */
+#define X86_CR4_MCE _BITUL(X86_CR4_MCE_BIT)
+#define X86_CR4_PGE_BIT 7 /* enable global pages */
+#define X86_CR4_PGE _BITUL(X86_CR4_PGE_BIT)
+#define X86_CR4_PCE_BIT 8 /* enable performance counters at ipl 3 */
+#define X86_CR4_PCE _BITUL(X86_CR4_PCE_BIT)
+#define X86_CR4_OSFXSR_BIT 9 /* enable fast FPU save and restore */
+#define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT)
+#define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */
+#define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT)
+#define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */
+#define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT)
+#define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */
+#define X86_CR4_SMXE _BITUL(X86_CR4_SMXE_BIT)
+#define X86_CR4_FSGSBASE_BIT 16 /* enable RDWRFSGS support */
+#define X86_CR4_FSGSBASE _BITUL(X86_CR4_FSGSBASE_BIT)
+#define X86_CR4_PCIDE_BIT 17 /* enable PCID support */
+#define X86_CR4_PCIDE _BITUL(X86_CR4_PCIDE_BIT)
+#define X86_CR4_OSXSAVE_BIT 18 /* enable xsave and xrestore */
+#define X86_CR4_OSXSAVE _BITUL(X86_CR4_OSXSAVE_BIT)
+#define X86_CR4_SMEP_BIT 20 /* enable SMEP support */
+#define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT)
+#define X86_CR4_SMAP_BIT 21 /* enable SMAP support */
+#define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT)
/*
* x86-64 Task Priority Register, CR8
*/
-#define X86_CR8_TPR 0x0000000F /* task priority register */
+#define X86_CR8_TPR _AC(0x0000000f,UL) /* task priority register */
/*
* AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>