diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2012-05-25 17:20:19 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2012-05-28 02:52:51 -0400 |
commit | 805918f80fb11d95e9b117a6faf5a6a7a8339e49 (patch) | |
tree | 69d2795cf73d3ad67ddc21618f2842b18efa9780 /arch/sparc | |
parent | b0acd2495e2a7f2655b9d4c761bd09e6dd05fbc4 (diff) |
sparc32: srmmu_probe now knows about leon too
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Konrad Eisele <konrad@gaisler.com>
Diffstat (limited to 'arch/sparc')
-rw-r--r-- | arch/sparc/include/asm/leon.h | 2 | ||||
-rw-r--r-- | arch/sparc/include/asm/pgtsrmmu.h | 17 | ||||
-rw-r--r-- | arch/sparc/mm/leon_mm.c | 2 | ||||
-rw-r--r-- | arch/sparc/mm/srmmu.c | 25 |
4 files changed, 23 insertions, 23 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index 995c4e05be6d..ba46083ee42e 100644 --- a/arch/sparc/include/asm/leon.h +++ b/arch/sparc/include/asm/leon.h | |||
@@ -197,7 +197,7 @@ static inline int sparc_leon3_cpuid(void) | |||
197 | #ifndef __ASSEMBLY__ | 197 | #ifndef __ASSEMBLY__ |
198 | struct vm_area_struct; | 198 | struct vm_area_struct; |
199 | 199 | ||
200 | extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); | 200 | extern unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr); |
201 | extern void leon_flush_icache_all(void); | 201 | extern void leon_flush_icache_all(void); |
202 | extern void leon_flush_dcache_all(void); | 202 | extern void leon_flush_dcache_all(void); |
203 | extern void leon_flush_cache_all(void); | 203 | extern void leon_flush_cache_all(void); |
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index 72f71214ef87..79da17866fa8 100644 --- a/arch/sparc/include/asm/pgtsrmmu.h +++ b/arch/sparc/include/asm/pgtsrmmu.h | |||
@@ -166,23 +166,6 @@ static inline void srmmu_flush_whole_tlb(void) | |||
166 | 166 | ||
167 | } | 167 | } |
168 | 168 | ||
169 | /* These flush types are not available on all chips... */ | ||
170 | #ifndef CONFIG_SPARC_LEON | ||
171 | static inline unsigned long srmmu_hwprobe(unsigned long vaddr) | ||
172 | { | ||
173 | unsigned long retval; | ||
174 | |||
175 | vaddr &= PAGE_MASK; | ||
176 | __asm__ __volatile__("lda [%1] %2, %0\n\t" : | ||
177 | "=r" (retval) : | ||
178 | "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE)); | ||
179 | |||
180 | return retval; | ||
181 | } | ||
182 | #else | ||
183 | #define srmmu_hwprobe(addr) srmmu_swprobe(addr, 0) | ||
184 | #endif | ||
185 | |||
186 | static inline int | 169 | static inline int |
187 | srmmu_get_pte (unsigned long addr) | 170 | srmmu_get_pte (unsigned long addr) |
188 | { | 171 | { |
diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c index 4c67ae6e5023..5bed085a2c17 100644 --- a/arch/sparc/mm/leon_mm.c +++ b/arch/sparc/mm/leon_mm.c | |||
@@ -32,7 +32,7 @@ static inline unsigned long leon_get_ctable_ptr(void) | |||
32 | } | 32 | } |
33 | 33 | ||
34 | 34 | ||
35 | unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr) | 35 | unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr) |
36 | { | 36 | { |
37 | 37 | ||
38 | unsigned int ctxtbl; | 38 | unsigned int ctxtbl; |
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 256db6b22c54..62e3f5773303 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c | |||
@@ -646,6 +646,23 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start, | |||
646 | } | 646 | } |
647 | } | 647 | } |
648 | 648 | ||
649 | /* These flush types are not available on all chips... */ | ||
650 | static inline unsigned long srmmu_probe(unsigned long vaddr) | ||
651 | { | ||
652 | unsigned long retval; | ||
653 | |||
654 | if (sparc_cpu_model != sparc_leon) { | ||
655 | |||
656 | vaddr &= PAGE_MASK; | ||
657 | __asm__ __volatile__("lda [%1] %2, %0\n\t" : | ||
658 | "=r" (retval) : | ||
659 | "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE)); | ||
660 | } else { | ||
661 | retval = leon_swprobe(vaddr, 0); | ||
662 | } | ||
663 | return retval; | ||
664 | } | ||
665 | |||
649 | /* | 666 | /* |
650 | * This is much cleaner than poking around physical address space | 667 | * This is much cleaner than poking around physical address space |
651 | * looking at the prom's page table directly which is what most | 668 | * looking at the prom's page table directly which is what most |
@@ -665,7 +682,7 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, | |||
665 | break; /* probably wrap around */ | 682 | break; /* probably wrap around */ |
666 | if(start == 0xfef00000) | 683 | if(start == 0xfef00000) |
667 | start = KADB_DEBUGGER_BEGVM; | 684 | start = KADB_DEBUGGER_BEGVM; |
668 | if(!(prompte = srmmu_hwprobe(start))) { | 685 | if(!(prompte = srmmu_probe(start))) { |
669 | start += PAGE_SIZE; | 686 | start += PAGE_SIZE; |
670 | continue; | 687 | continue; |
671 | } | 688 | } |
@@ -674,12 +691,12 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, | |||
674 | what = 0; | 691 | what = 0; |
675 | 692 | ||
676 | if(!(start & ~(SRMMU_REAL_PMD_MASK))) { | 693 | if(!(start & ~(SRMMU_REAL_PMD_MASK))) { |
677 | if(srmmu_hwprobe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte) | 694 | if(srmmu_probe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte) |
678 | what = 1; | 695 | what = 1; |
679 | } | 696 | } |
680 | 697 | ||
681 | if(!(start & ~(SRMMU_PGDIR_MASK))) { | 698 | if(!(start & ~(SRMMU_PGDIR_MASK))) { |
682 | if(srmmu_hwprobe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) == | 699 | if(srmmu_probe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) == |
683 | prompte) | 700 | prompte) |
684 | what = 2; | 701 | what = 2; |
685 | } | 702 | } |
@@ -1156,7 +1173,7 @@ static void turbosparc_flush_page_to_ram(unsigned long page) | |||
1156 | #ifdef TURBOSPARC_WRITEBACK | 1173 | #ifdef TURBOSPARC_WRITEBACK |
1157 | volatile unsigned long clear; | 1174 | volatile unsigned long clear; |
1158 | 1175 | ||
1159 | if (srmmu_hwprobe(page)) | 1176 | if (srmmu_probe(page)) |
1160 | turbosparc_flush_page_cache(page); | 1177 | turbosparc_flush_page_cache(page); |
1161 | clear = srmmu_get_fstatus(); | 1178 | clear = srmmu_get_fstatus(); |
1162 | #endif | 1179 | #endif |