[ARM] armv7: Add ARMv7 cacheid macros

This patch renames the old __cacheid_* macros to __cacheid_*_prev7 and adds
support for the new format.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 12 insertions, 5 deletions

diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h
index b87226192be9..6832ef96bc16 100644
--- a/include/asm-arm/cacheflush.h
+++ b/include/asm-arm/cacheflush.h
@@ -426,11 +426,18 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
  */
 #define flush_icache_page(vma,page)     do { } while (0)
 
-#define __cacheid_present(val)          (val != read_cpuid(CPUID_ID))
-#define __cacheid_vivt(val)             ((val & (15 << 25)) != (14 << 25))
-#define __cacheid_vipt(val)             ((val & (15 << 25)) == (14 << 25))
-#define __cacheid_vipt_nonaliasing(val) ((val & (15 << 25 | 1 << 23)) == (14 << 25))
-#define __cacheid_vipt_aliasing(val)    ((val & (15 << 25 | 1 << 23)) == (14 << 25 | 1 << 23))
+#define __cacheid_present(val)                  (val != read_cpuid(CPUID_ID))
+#define __cacheid_type_v7(val)                  ((val & (7 << 29)) == (4 << 29))
+
+#define __cacheid_vivt_prev7(val)               ((val & (15 << 25)) != (14 << 25))
+#define __cacheid_vipt_prev7(val)               ((val & (15 << 25)) == (14 << 25))
+#define __cacheid_vipt_nonaliasing_prev7(val)   ((val & (15 << 25 | 1 << 23)) == (14 << 25))
+#define __cacheid_vipt_aliasing_prev7(val)      ((val & (15 << 25 | 1 << 23)) == (14 << 25 | 1 << 23))
+
+#define __cacheid_vivt(val)                     (__cacheid_type_v7(val) ? 0 : __cacheid_vivt_prev7(val))
+#define __cacheid_vipt(val)                     (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_prev7(val))
+#define __cacheid_vipt_nonaliasing(val)         (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_nonaliasing_prev7(val))
+#define __cacheid_vipt_aliasing(val)            (__cacheid_type_v7(val) ? 0 : __cacheid_vipt_aliasing_prev7(val))
 
 #if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)