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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-01-16 22:33:22 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-01-17 02:04:07 -0600 |
| commit | 44a23cfd6360a68eaa41f945190618a55519eac3 (patch) | |
| tree | de0fba321ba3ebe9bba235490fd94e82a2576c82 /include | |
| parent | c8c41d4a80b1a8ad5984a287d81ea780496259f8 (diff) | |
| download | u-boot-imx-44a23cfd6360a68eaa41f945190618a55519eac3.zip u-boot-imx-44a23cfd6360a68eaa41f945190618a55519eac3.tar.gz u-boot-imx-44a23cfd6360a68eaa41f945190618a55519eac3.tar.bz2 | |
85xx: Introduce new tlb API
Add a set of functions to manipulate TLB entries:
* set_tlb() - write a tlb entry
* invalidate_tlb() - invalidate a tlb array
* disable_tlb() - disable a variable size tlb entry
* init_tlbs() - setup initial tlbs based on static table
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc/mmu.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h index 45a4764..ec1ca53 100644 --- a/include/asm-ppc/mmu.h +++ b/include/asm-ppc/mmu.h @@ -418,6 +418,37 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower); #define BOOKE_PAGESZ_256GB 14 #define BOOKE_PAGESZ_1TB 15 +#ifdef CONFIG_E500 +#ifndef __ASSEMBLY__ +extern void set_tlb(u8 tlb, u32 epn, u64 rpn, + u8 perms, u8 wimge, + u8 ts, u8 esel, u8 tsize, u8 iprot); +extern void disable_tlb(u8 esel); +extern void invalidate_tlb(u8 tlb); +extern void init_tlbs(void); + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \ + { .tlb = _tlb, .epn = _epn, .rpn = _rpn, .perms = _perms, \ + .wimge = _wimge, .ts = _ts, .esel = _esel, .tsize = _sz, .iprot = _iprot } + +struct fsl_e_tlb_entry { + u8 tlb; + u32 epn; + u64 rpn; + u8 perms; + u8 wimge; + u8 ts; + u8 esel; + u8 tsize; + u8 iprot; +}; + +extern struct fsl_e_tlb_entry tlb_table[]; +extern int num_tlb_entries; +#endif +#endif + #if defined(CONFIG_MPC86xx) #define LAWBAR_BASE_ADDR 0x00FFFFFF #define LAWAR_TRGT_IF 0x01F00000 |