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[PATCH] cell: enable pause(0) in cpu_idle

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This patch enables support for pause(0) power management state
for the Cell Broadband Processor, which is import for power efficient
operation. The pervasive infrastructure will in the future enable
us to introduce more functionality specific to the Cell's
pervasive unit.

From: Maximino Aguilar <maguilar@us.ibm.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Arnd Bergmann
2006-01-04 19:55:53 +00:00
committed by Paul Mackerras
parent 017e0fad3e
commit c902be71dc
12 changed files with 335 additions and 14 deletions
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4
include/asm-powerpc/cputable.h
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@@ -105,6 +105,7 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
#define CPU_FTR_LOCKLESS_TLBIE ASM_CONST(0x0000040000000000)
#define CPU_FTR_MMCRA_SIHV ASM_CONST(0x0000080000000000)
#define CPU_FTR_CI_LARGE_PAGE ASM_CONST(0x0000100000000000)
#define CPU_FTR_PAUSE_ZERO ASM_CONST(0x0000200000000000)
#else
/* ensure on 32b processors the flags are available for compiling but
* don't do anything */
@@ -304,7 +305,8 @@ enum {
CPU_FTR_MMCRA_SIHV,
CPU_FTRS_CELL = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 |
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT,
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT |
CPU_FTR_CTRL | CPU_FTR_PAUSE_ZERO,
CPU_FTRS_COMPATIBLE = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2,
#endif