Commit 46097c7d authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] cachetype: move definitions to separate header



Rather than pollute asm/cacheflush.h with the cache type definitions,
move them to asm/cachetype.h, and include this new header where
necessary.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0ba8b9b2
......@@ -444,94 +444,4 @@ static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
dmac_inv_range(start, start + size);
}
#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))
#define __cacheid_vivt_asid_tagged_instr(val) (__cacheid_type_v7(val) ? ((val & (3 << 14)) == (1 << 14)) : 0)
#if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIVT caches only
*/
#define cache_is_vivt() 1
#define cache_is_vipt() 0
#define cache_is_vipt_nonaliasing() 0
#define cache_is_vipt_aliasing() 0
#define icache_is_vivt_asid_tagged() 0
#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIPT caches only
*/
#define cache_is_vivt() 0
#define cache_is_vipt() 1
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#else
/*
* VIVT or VIPT caches. Note that this is unreliable since ARM926
* and V6 CPUs satisfy the "(val & (15 << 25)) == (14 << 25)" test.
* There's no way to tell from the CacheType register what type (!)
* the cache is.
*/
#define cache_is_vivt() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
(!__cacheid_present(__val)) || __cacheid_vivt(__val); \
})
#define cache_is_vipt() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && __cacheid_vipt(__val); \
})
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#endif
#endif
#ifndef __ASM_ARM_CACHETYPE_H
#define __ASM_ARM_CACHETYPE_H
#include <asm/cputype.h>
#define __cacheid_present(val) (val != read_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))
#define __cacheid_vivt_asid_tagged_instr(val) (__cacheid_type_v7(val) ? ((val & (3 << 14)) == (1 << 14)) : 0)
#if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIVT caches only
*/
#define cache_is_vivt() 1
#define cache_is_vipt() 0
#define cache_is_vipt_nonaliasing() 0
#define cache_is_vipt_aliasing() 0
#define icache_is_vivt_asid_tagged() 0
#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIPT caches only
*/
#define cache_is_vivt() 0
#define cache_is_vipt() 1
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#else
/*
* VIVT or VIPT caches. Note that this is unreliable since ARM926
* and V6 CPUs satisfy the "(val & (15 << 25)) == (14 << 25)" test.
* There's no way to tell from the CacheType register what type (!)
* the cache is.
*/
#define cache_is_vivt() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
(!__cacheid_present(__val)) || __cacheid_vivt(__val); \
})
#define cache_is_vipt() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_present(__val) && __cacheid_vipt(__val); \
})
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_present(__val) && \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_present(__val) && \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid_cachetype(); \
__cacheid_present(__val) && \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#endif
#endif
......@@ -15,6 +15,7 @@
#include <linux/compiler.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/proc-fns.h>
#include <asm-generic/mm_hooks.h>
......
......@@ -32,6 +32,7 @@
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/tlbflush.h>
#include <asm/mach/arch.h>
......
......@@ -16,6 +16,7 @@
#include <asm/shmparam.h>
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include "mm.h"
......
......@@ -18,6 +18,7 @@
#include <linux/pagemap.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
......
......@@ -12,6 +12,7 @@
#include <linux/pagemap.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
......
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