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powerpc: Add VSX CPU feature

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Add a VSX CPU feature.  Also add code to detect if VSX is available
from the device tree.

Signed-off-by: Michael Neuling <[email protected]>
Signed-off-by: Joel Schopp <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Michael Neuling 2008-06-25 14:07:18 +10:00 • committed by Paul Mackerras
commit b962ce9d26
2 changed files with 18 additions and 1 deletions
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15
include/asm-powerpc/cputable.h
View file

@ -25,6 +25,7 @@
#define PPC_FEATURE_HAS_DFP 0x00000400
#define PPC_FEATURE_POWER6_EXT 0x00000200
#define PPC_FEATURE_ARCH_2_06 0x00000100
#define PPC_FEATURE_HAS_VSX 0x00000080
#define PPC_FEATURE_TRUE_LE 0x00000002
#define PPC_FEATURE_PPC_LE 0x00000001
@ -183,6 +184,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
#define CPU_FTR_DSCR LONG_ASM_CONST(0x0002000000000000)
#define CPU_FTR_1T_SEGMENT LONG_ASM_CONST(0x0004000000000000)
#define CPU_FTR_NO_SLBIE_B LONG_ASM_CONST(0x0008000000000000)
#define CPU_FTR_VSX LONG_ASM_CONST(0x0010000000000000)
#ifndef __ASSEMBLY__
@ -201,6 +203,17 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
#define PPC_FEATURE_HAS_ALTIVEC_COMP 0
#endif
/* We only set the VSX features if the kernel was compiled with VSX
* support
*/
#ifdef CONFIG_VSX
#define CPU_FTR_VSX_COMP CPU_FTR_VSX
#define PPC_FEATURE_HAS_VSX_COMP PPC_FEATURE_HAS_VSX
#else
#define CPU_FTR_VSX_COMP 0
#define PPC_FEATURE_HAS_VSX_COMP 0
#endif
/* We only set the spe features if the kernel was compiled with spe
* support
*/
@ -404,7 +417,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
(CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 | \
CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 | \
CPU_FTRS_POWER7 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \
CPU_FTR_1T_SEGMENT)
CPU_FTR_1T_SEGMENT | CPU_FTR_VSX)
#else
enum {
CPU_FTRS_POSSIBLE =