| /trunk/kernel/generic/src/mm/backend_anon.c |
|---|
| 51,6 → 51,10 |
| #include <align.h> |
| #include <arch.h> |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| #include <arch/mm/cache.h> |
| #endif |
| static int anon_page_fault(as_area_t *area, uintptr_t addr, pf_access_t access); |
| static void anon_frame_free(as_area_t *area, uintptr_t page, uintptr_t frame); |
| static void anon_share(as_area_t *area); |
| 153,12 → 157,15 |
| * The address space area and page tables must be already locked. |
| * |
| * @param area Ignored. |
| * @param page Ignored. |
| * @param page Virtual address of the page corresponding to the frame. |
| * @param frame Frame to be released. |
| */ |
| void anon_frame_free(as_area_t *area, uintptr_t page, uintptr_t frame) |
| { |
| frame_free(frame); |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| dcache_flush_frame(page, frame); |
| #endif |
| } |
| /** Share the anonymous address space area. |
| /trunk/kernel/generic/src/mm/backend_elf.c |
|---|
| 50,6 → 50,10 |
| #include <macros.h> |
| #include <arch.h> |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| #include <arch/mm/cache.h> |
| #endif |
| static int elf_page_fault(as_area_t *area, uintptr_t addr, pf_access_t access); |
| static void elf_frame_free(as_area_t *area, uintptr_t page, uintptr_t frame); |
| static void elf_share(as_area_t *area); |
| 219,6 → 223,9 |
| * Free the frame with the copy of writable segment data. |
| */ |
| frame_free(frame); |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| dcache_flush_frame(page, frame); |
| #endif |
| } |
| } else { |
| /* |
| 227,6 → 234,9 |
| * In any case, a frame needs to be freed. |
| */ |
| frame_free(frame); |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| dcache_flush_frame(page, frame); |
| #endif |
| } |
| } |
| /trunk/kernel/arch/sparc64/include/mm/cache.h |
|---|
| 35,7 → 35,17 |
| #ifndef KERN_sparc64_CACHE_H_ |
| #define KERN_sparc64_CACHE_H_ |
| #include <mm/page.h> |
| #include <mm/frame.h> |
| #define dcache_flush_page(p) \ |
| dcache_flush_color(PAGE_COLOR((p))) |
| #define dcache_flush_frame(p, f) \ |
| dcache_flush_tag(PAGE_COLOR((p)), ADDR2PFN((f))); |
| extern void dcache_flush(void); |
| extern void dcache_flush_color(int c); |
| extern void dcache_flush_tag(int c, pfn_t tag); |
| #endif |
| /trunk/kernel/arch/sparc64/src/mm/cache_asm.S |
|---|
| 31,6 → 31,12 |
| #define DCACHE_SIZE (16*1024) |
| #define DCACHE_LINE_SIZE 32 |
| #define DCACHE_TAG_SHIFT 2 |
| .register %g2, #scratch |
| .register %g3, #scratch |
| /** Flush the whole D-cache. */ |
| .global dcache_flush |
| dcache_flush: |
| set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
| 42,3 → 48,44 |
| retl |
| membar #Sync |
| /** Flush only D-cache lines of one virtual color. |
| * |
| * @param o0 Virtual color to be flushed. |
| */ |
| .global dcache_flush_color |
| dcache_flush_color: |
| mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
| set DCACHE_SIZE / 2, %g2 |
| sllx %g2, %o0, %g2 |
| sub %g2, DCACHE_LINE_SIZE, %g2 |
| 0: stxa %g0, [%g2] ASI_DCACHE_TAG |
| membar #Sync |
| subcc %g1, 1, %g1 |
| bnz,pt %xcc, 0b |
| sub %g2, DCACHE_LINE_SIZE, %g2 |
| retl |
| nop |
| /** Flush only D-cache lines of one virtual color and one tag. |
| * |
| * @param o0 Virtual color to lookup the tag. |
| * @param o1 Tag of the cachelines to be flushed. |
| */ |
| .global dcache_flush_tag |
| dcache_flush_tag: |
| mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
| set DCACHE_SIZE / 2, %g2 |
| sllx %g2, %o0, %g2 |
| sub %g2, DCACHE_LINE_SIZE, %g2 |
| 0: ldxa [%g2] ASI_DCACHE_TAG, %g3 |
| srlx %g3, DCACHE_TAG_SHIFT, %g3 |
| cmp %g3, %o1 |
| bnz 1f |
| nop |
| stxa %g0, [%g2] ASI_DCACHE_TAG |
| membar #Sync |
| 1: subcc %g1, 1, %g1 |
| bnz,pt %xcc, 0b |
| sub %g2, DCACHE_LINE_SIZE, %g2 |
| retl |
| nop |