[PATCH] x86: Clean up x86 control register and MSR macros (corrected)

This patch is based on Rusty's recent cleanup of the EFLAGS-related
macros; it extends the same kind of cleanup to control registers and
MSRs.

It also unifies these between i386 and x86-64; at least with regards
to MSRs, the two had definitely gotten out of sync.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 65 insertions, 0 deletions

diff --git a/include/asm-i386/processor-flags.h b/include/asm-i386/processor-flags.h
index b4711c222e2b..5404e90edd57 100644
--- a/include/asm-i386/processor-flags.h
+++ b/include/asm-i386/processor-flags.h
@@ -23,4 +23,69 @@
 #define X86_EFLAGS_VIP  0x00100000 /* Virtual Interrupt Pending */
 #define X86_EFLAGS_ID   0x00200000 /* CPUID detection flag */
 
+/*
+ * 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 */
+
+/*
+ * Paging options in CR3
+ */
+#define X86_CR3_PWT     0x00000008 /* Page Write Through */
+#define X86_CR3_PCD     0x00000010 /* Page Cache Disable */
+
+/*
+ * 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 */
+
+/*
+ * x86-64 Task Priority Register, CR8
+ */
+#define X86_CR8_TPR     0x00000007 /* task priority register */
+
+/*
+ * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
+ */
+
+/*
+ *      NSC/Cyrix CPU configuration register indexes
+ */
+#define CX86_PCR0       0x20
+#define CX86_GCR        0xb8
+#define CX86_CCR0       0xc0
+#define CX86_CCR1       0xc1
+#define CX86_CCR2       0xc2
+#define CX86_CCR3       0xc3
+#define CX86_CCR4       0xe8
+#define CX86_CCR5       0xe9
+#define CX86_CCR6       0xea
+#define CX86_CCR7       0xeb
+#define CX86_PCR1       0xf0
+#define CX86_DIR0       0xfe
+#define CX86_DIR1       0xff
+#define CX86_ARR_BASE   0xc4
+#define CX86_RCR_BASE   0xdc
+
 #endif  /* __ASM_I386_PROCESSOR_FLAGS_H */