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MIPS: Break down cacheops.h definitions 

Most of the cache op codes defined in cacheops.h are split into a 2-bit
cache identifier, and a 3-bit cache op code which does largely the same
thing semantically regardless of the cache identifier.

To allow the use of these definitions by KVM for decoding cache ops,
break the definitions down into parts where it makes sense to do so, and
add masks for the Cache and Op field within the cache op.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11892/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
James Hogan 2015-12-16 23:49:36 +00:00 committed by Ralf Baechle
parent 1b505defe0
commit 5fa393c857
1 changed files with 64 additions and 42 deletions
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106
arch/mips/include/asm/cacheops.h
View File

@ -11,55 +11,77 @@
#ifndef __ASM_CACHEOPS_H
#define __ASM_CACHEOPS_H
/*
* Most cache ops are split into a 2 bit field identifying the cache, and a 3
* bit field identifying the cache operation.
*/
#define CacheOp_Cache 0x03
#define CacheOp_Op 0x1c
#define Cache_I 0x00
#define Cache_D 0x01
#define Cache_T 0x02
#define Cache_S 0x03
#define Index_Writeback_Inv 0x00
#define Index_Load_Tag 0x04
#define Index_Store_Tag 0x08
#define Hit_Invalidate 0x10
#define Hit_Writeback_Inv 0x14 /* not with Cache_I though */
#define Hit_Writeback 0x18
/*
* Cache Operations available on all MIPS processors with R4000-style caches
*/
#define Index_Invalidate_I 0x00
#define Index_Writeback_Inv_D 0x01
#define Index_Load_Tag_I 0x04
#define Index_Load_Tag_D 0x05
#define Index_Store_Tag_I 0x08
#define Index_Store_Tag_D 0x09
#define Hit_Invalidate_I 0x10
#define Hit_Invalidate_D 0x11
#define Hit_Writeback_Inv_D 0x15
#define Index_Invalidate_I (Cache_I | Index_Writeback_Inv)
#define Index_Writeback_Inv_D (Cache_D | Index_Writeback_Inv)
#define Index_Load_Tag_I (Cache_I | Index_Load_Tag)
#define Index_Load_Tag_D (Cache_D | Index_Load_Tag)
#define Index_Store_Tag_I (Cache_I | Index_Store_Tag)
#define Index_Store_Tag_D (Cache_D | Index_Store_Tag)
#define Hit_Invalidate_I (Cache_I | Hit_Invalidate)
#define Hit_Invalidate_D (Cache_D | Hit_Invalidate)
#define Hit_Writeback_Inv_D (Cache_D | Hit_Writeback_Inv)
/*
* R4000-specific cacheops
*/
#define Create_Dirty_Excl_D 0x0d
#define Fill 0x14
#define Hit_Writeback_I 0x18
#define Hit_Writeback_D 0x19
#define Create_Dirty_Excl_D (Cache_D | 0x0c)
#define Fill (Cache_I | 0x14)
#define Hit_Writeback_I (Cache_I | Hit_Writeback)
#define Hit_Writeback_D (Cache_D | Hit_Writeback)
/*
* R4000SC and R4400SC-specific cacheops
*/
#define Index_Invalidate_SI 0x02
#define Index_Writeback_Inv_SD 0x03
#define Index_Load_Tag_SI 0x06
#define Index_Load_Tag_SD 0x07
#define Index_Store_Tag_SI 0x0A
#define Index_Store_Tag_SD 0x0B
#define Create_Dirty_Excl_SD 0x0f
#define Hit_Invalidate_SI 0x12
#define Hit_Invalidate_SD 0x13
#define Hit_Writeback_Inv_SD 0x17
#define Hit_Writeback_SD 0x1b
#define Hit_Set_Virtual_SI 0x1e
#define Hit_Set_Virtual_SD 0x1f
#define Cache_SI 0x02
#define Cache_SD 0x03
#define Index_Invalidate_SI (Cache_SI | Index_Writeback_Inv)
#define Index_Writeback_Inv_SD (Cache_SD | Index_Writeback_Inv)
#define Index_Load_Tag_SI (Cache_SI | Index_Load_Tag)
#define Index_Load_Tag_SD (Cache_SD | Index_Load_Tag)
#define Index_Store_Tag_SI (Cache_SI | Index_Store_Tag)
#define Index_Store_Tag_SD (Cache_SD | Index_Store_Tag)
#define Create_Dirty_Excl_SD (Cache_SD | 0x0c)
#define Hit_Invalidate_SI (Cache_SI | Hit_Invalidate)
#define Hit_Invalidate_SD (Cache_SD | Hit_Invalidate)
#define Hit_Writeback_Inv_SD (Cache_SD | Hit_Writeback_Inv)
#define Hit_Writeback_SD (Cache_SD | Hit_Writeback)
#define Hit_Set_Virtual_SI (Cache_SI | 0x1c)
#define Hit_Set_Virtual_SD (Cache_SD | 0x1c)
/*
* R5000-specific cacheops
*/
#define R5K_Page_Invalidate_S 0x17
#define R5K_Page_Invalidate_S (Cache_S | 0x14)
/*
* RM7000-specific cacheops
*/
#define Page_Invalidate_T 0x16
#define Index_Store_Tag_T 0x0a
#define Index_Load_Tag_T 0x06
#define Page_Invalidate_T (Cache_T | 0x14)
#define Index_Store_Tag_T (Cache_T | Index_Store_Tag)
#define Index_Load_Tag_T (Cache_T | Index_Load_Tag)
/*
* R10000-specific cacheops
@ -67,22 +89,22 @@
* Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
* Most of the _S cacheops are identical to the R4000SC _SD cacheops.
*/
#define Index_Writeback_Inv_S 0x03
#define Index_Load_Tag_S 0x07
#define Index_Store_Tag_S 0x0B
#define Hit_Invalidate_S 0x13
#define Index_Writeback_Inv_S (Cache_S | Index_Writeback_Inv)
#define Index_Load_Tag_S (Cache_S | Index_Load_Tag)
#define Index_Store_Tag_S (Cache_S | Index_Store_Tag)
#define Hit_Invalidate_S (Cache_S | Hit_Invalidate)
#define Cache_Barrier 0x14
#define Hit_Writeback_Inv_S 0x17
#define Index_Load_Data_I 0x18
#define Index_Load_Data_D 0x19
#define Index_Load_Data_S 0x1b
#define Index_Store_Data_I 0x1c
#define Index_Store_Data_D 0x1d
#define Index_Store_Data_S 0x1f
#define Hit_Writeback_Inv_S (Cache_S | Hit_Writeback_Inv)
#define Index_Load_Data_I (Cache_I | 0x18)
#define Index_Load_Data_D (Cache_D | 0x18)
#define Index_Load_Data_S (Cache_S | 0x18)
#define Index_Store_Data_I (Cache_I | 0x1c)
#define Index_Store_Data_D (Cache_D | 0x1c)
#define Index_Store_Data_S (Cache_S | 0x1c)
/*
* Loongson2-specific cacheops
*/
#define Hit_Invalidate_I_Loongson2 0x00
#define Hit_Invalidate_I_Loongson2 (Cache_I | 0x00)
#endif /* __ASM_CACHEOPS_H */