| /trunk/kernel/generic/src/mm/backend_anon.c |
|---|
| 157,21 → 157,6 |
| if (!used_space_insert(area, ALIGN_DOWN(addr, PAGE_SIZE), 1)) |
| panic("Could not insert used space.\n"); |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| if (dirty && PAGE_COLOR(PA2KA(frame)) != PAGE_COLOR(addr)) { |
| /* |
| * By writing to the frame using kernel virtual address, |
| * we have created an illegal virtual alias. We now have to |
| * invalidate cachelines belonging to addr on all processors |
| * so that they will be reloaded with the new content on next |
| * read. |
| */ |
| dcache_flush_frame(addr, frame); |
| dcache_shootdown_start(DCACHE_INVL_FRAME, PAGE_COLOR(addr), frame); |
| dcache_shootdown_finalize(); |
| } |
| #endif |
| return AS_PF_OK; |
| } |
| 240,4 → 225,3 |
| /** @} |
| */ |
| /trunk/kernel/generic/src/mm/as.c |
|---|
| 613,8 → 613,7 |
| * such address space area, EPERM if there was a problem in accepting the area |
| * or ENOMEM if there was a problem in allocating destination address space |
| * area. ENOTSUP is returned if the address space area backend does not support |
| * sharing or if the kernel detects an attempt to create an illegal address |
| * alias. |
| * sharing. |
| */ |
| int as_area_share(as_t *src_as, uintptr_t src_base, size_t acc_size, |
| as_t *dst_as, uintptr_t dst_base, int dst_flags_mask) |
| 667,20 → 666,6 |
| return EPERM; |
| } |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| if (!(dst_flags_mask & AS_AREA_EXEC)) { |
| if (PAGE_COLOR(src_area->base) != PAGE_COLOR(dst_base)) { |
| /* |
| * Refuse to create an illegal address alias. |
| */ |
| mutex_unlock(&src_area->lock); |
| mutex_unlock(&src_as->lock); |
| interrupts_restore(ipl); |
| return ENOTSUP; |
| } |
| } |
| #endif /* CONFIG_VIRT_IDX_DCACHE */ |
| /* |
| * Now we are committed to sharing the area. |
| * First, prepare the area for sharing. |
| 901,9 → 886,9 |
| * list of inactive address spaces with assigned |
| * ASID. |
| */ |
| ASSERT(old_as->asid != ASID_INVALID); |
| list_append(&old_as->inactive_as_with_asid_link, |
| &inactive_as_with_asid_head); |
| ASSERT(old_as->asid != ASID_INVALID); |
| list_append(&old_as->inactive_as_with_asid_link, |
| &inactive_as_with_asid_head); |
| } |
| mutex_unlock(&old_as->lock); |
| /trunk/kernel/generic/src/mm/backend_elf.c |
|---|
| 209,21 → 209,6 |
| if (!used_space_insert(area, ALIGN_DOWN(addr, PAGE_SIZE), 1)) |
| panic("Could not insert used space.\n"); |
| #ifdef CONFIG_VIRT_IDX_DCACHE |
| if (dirty && PAGE_COLOR(PA2KA(frame)) != PAGE_COLOR(addr)) { |
| /* |
| * By writing to the frame using kernel virtual address, |
| * we have created an illegal virtual alias. We now have to |
| * invalidate cachelines belonging to addr on all processors |
| * so that they will be reloaded with the new content on next |
| * read. |
| */ |
| dcache_flush_frame(addr, frame); |
| dcache_shootdown_start(DCACHE_INVL_FRAME, PAGE_COLOR(addr), frame); |
| dcache_shootdown_finalize(); |
| } |
| #endif |
| return AS_PF_OK; |
| } |
| 355,4 → 340,3 |
| /** @} |
| */ |