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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 13:09:45 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 13:09:45 -0400
commit7cc4e87f912bbefa440a51856b8d076e5d1f554a (patch)
tree1b8df8683f3de37d2e8211ffa8d151f60d59af62 /arch/arm/include/asm/cacheflush.h
parent5ba2f67afb02c5302b2898949ed6fc3b3d37dcf1 (diff)
parent69fc7eed5f56bce15b239e5110de2575a6970df4 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
-rw-r--r--arch/arm/include/asm/cacheflush.h90
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 9073d9c6567e..de6c59f814a1 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -444,94 +444,4 @@ static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
444 dmac_inv_range(start, start + size); 444 dmac_inv_range(start, start + size);
445} 445}
446 446
447#define __cacheid_present(val) (val != read_cpuid(CPUID_ID))
448#define __cacheid_type_v7(val) ((val & (7 << 29)) == (4 << 29))
449
450#define __cacheid_vivt_prev7(val) ((val & (15 << 25)) != (14 << 25))
451#define __cacheid_vipt_prev7(val) ((val & (15 << 25)) == (14 << 25))
452#define __cacheid_vipt_nonaliasing_prev7(val) ((val & (15 << 25 | 1 << 23)) == (14 << 25))
453#define __cacheid_vipt_aliasing_prev7(val) ((val & (15 << 25 | 1 << 23)) == (14 << 25 | 1 << 23))
454
455#define __cacheid_vivt(val) (__cacheid_type_v7(val) ? 0 : __cacheid_vivt_prev7(val))
456#define __cacheid_vipt(val) (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_prev7(val))
457#define __cacheid_vipt_nonaliasing(val) (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_nonaliasing_prev7(val))
458#define __cacheid_vipt_aliasing(val) (__cacheid_type_v7(val) ? 0 : __cacheid_vipt_aliasing_prev7(val))
459#define __cacheid_vivt_asid_tagged_instr(val) (__cacheid_type_v7(val) ? ((val & (3 << 14)) == (1 << 14)) : 0)
460
461#if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
462/*
463 * VIVT caches only
464 */
465#define cache_is_vivt() 1
466#define cache_is_vipt() 0
467#define cache_is_vipt_nonaliasing() 0
468#define cache_is_vipt_aliasing() 0
469#define icache_is_vivt_asid_tagged() 0
470
471#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
472/*
473 * VIPT caches only
474 */
475#define cache_is_vivt() 0
476#define cache_is_vipt() 1
477#define cache_is_vipt_nonaliasing() \
478 ({ \
479 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
480 __cacheid_vipt_nonaliasing(__val); \
481 })
482
483#define cache_is_vipt_aliasing() \
484 ({ \
485 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
486 __cacheid_vipt_aliasing(__val); \
487 })
488
489#define icache_is_vivt_asid_tagged() \
490 ({ \
491 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
492 __cacheid_vivt_asid_tagged_instr(__val); \
493 })
494
495#else
496/*
497 * VIVT or VIPT caches. Note that this is unreliable since ARM926
498 * and V6 CPUs satisfy the "(val & (15 << 25)) == (14 << 25)" test.
499 * There's no way to tell from the CacheType register what type (!)
500 * the cache is.
501 */
502#define cache_is_vivt() \
503 ({ \
504 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
505 (!__cacheid_present(__val)) || __cacheid_vivt(__val); \
506 })
507
508#define cache_is_vipt() \
509 ({ \
510 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
511 __cacheid_present(__val) && __cacheid_vipt(__val); \
512 })
513
514#define cache_is_vipt_nonaliasing() \
515 ({ \
516 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
517 __cacheid_present(__val) && \
518 __cacheid_vipt_nonaliasing(__val); \
519 })
520
521#define cache_is_vipt_aliasing() \
522 ({ \
523 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
524 __cacheid_present(__val) && \
525 __cacheid_vipt_aliasing(__val); \
526 })
527
528#define icache_is_vivt_asid_tagged() \
529 ({ \
530 unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
531 __cacheid_present(__val) && \
532 __cacheid_vivt_asid_tagged_instr(__val); \
533 })
534
535#endif
536
537#endif 447#endif