| /* |
| * Copyright © 2009 Red Hat Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS |
| * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| */ |
| /* |
| */ |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| #include "radeon_cs.h" |
| #include "radeon_bo_int.h" |
| #include "radeon_cs_int.h" |
| |
| struct rad_sizes { |
| int32_t op_read; |
| int32_t op_gart_write; |
| int32_t op_vram_write; |
| }; |
| |
| static inline int radeon_cs_setup_bo(struct radeon_cs_space_check *sc, struct rad_sizes *sizes) |
| { |
| uint32_t read_domains, write_domain; |
| struct radeon_bo_int *bo; |
| |
| bo = sc->bo; |
| sc->new_accounted = 0; |
| read_domains = sc->read_domains; |
| write_domain = sc->write_domain; |
| |
| /* legacy needs a static check */ |
| if (radeon_bo_is_static((struct radeon_bo *)sc->bo)) { |
| bo->space_accounted = sc->new_accounted = (read_domains << 16) | write_domain; |
| return 0; |
| } |
| |
| /* already accounted this bo */ |
| if (write_domain && (write_domain == bo->space_accounted)) { |
| sc->new_accounted = bo->space_accounted; |
| return 0; |
| } |
| if (read_domains && ((read_domains << 16) == bo->space_accounted)) { |
| sc->new_accounted = bo->space_accounted; |
| return 0; |
| } |
| |
| if (bo->space_accounted == 0) { |
| if (write_domain) { |
| if (write_domain == RADEON_GEM_DOMAIN_VRAM) |
| sizes->op_vram_write += bo->size; |
| else if (write_domain == RADEON_GEM_DOMAIN_GTT) |
| sizes->op_gart_write += bo->size; |
| sc->new_accounted = write_domain; |
| } else { |
| sizes->op_read += bo->size; |
| sc->new_accounted = read_domains << 16; |
| } |
| } else { |
| uint16_t old_read, old_write; |
| |
| old_read = bo->space_accounted >> 16; |
| old_write = bo->space_accounted & 0xffff; |
| |
| if (write_domain && (old_read & write_domain)) { |
| sc->new_accounted = write_domain; |
| /* moving from read to a write domain */ |
| if (write_domain == RADEON_GEM_DOMAIN_VRAM) { |
| sizes->op_read -= bo->size; |
| sizes->op_vram_write += bo->size; |
| } else if (write_domain == RADEON_GEM_DOMAIN_GTT) { |
| sizes->op_read -= bo->size; |
| sizes->op_gart_write += bo->size; |
| } |
| } else if (read_domains & old_write) { |
| sc->new_accounted = bo->space_accounted & 0xffff; |
| } else { |
| /* rewrite the domains */ |
| if (write_domain != old_write) |
| fprintf(stderr,"WRITE DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, write_domain, old_write); |
| if (read_domains != old_read) |
| fprintf(stderr,"READ DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, read_domains, old_read); |
| return RADEON_CS_SPACE_FLUSH; |
| } |
| } |
| return 0; |
| } |
| |
| static int radeon_cs_do_space_check(struct radeon_cs_int *cs, struct radeon_cs_space_check *new_tmp) |
| { |
| struct radeon_cs_manager *csm = cs->csm; |
| int i; |
| struct radeon_bo_int *bo; |
| struct rad_sizes sizes; |
| int ret; |
| |
| /* check the totals for this operation */ |
| |
| if (cs->bo_count == 0 && !new_tmp) |
| return 0; |
| |
| memset(&sizes, 0, sizeof(struct rad_sizes)); |
| |
| /* prepare */ |
| for (i = 0; i < cs->bo_count; i++) { |
| ret = radeon_cs_setup_bo(&cs->bos[i], &sizes); |
| if (ret) |
| return ret; |
| } |
| |
| if (new_tmp) { |
| ret = radeon_cs_setup_bo(new_tmp, &sizes); |
| if (ret) |
| return ret; |
| } |
| |
| if (sizes.op_read < 0) |
| sizes.op_read = 0; |
| |
| /* check sizes - operation first */ |
| if ((sizes.op_read + sizes.op_gart_write > csm->gart_limit) || |
| (sizes.op_vram_write > csm->vram_limit)) { |
| return RADEON_CS_SPACE_OP_TO_BIG; |
| } |
| |
| if (((csm->vram_write_used + sizes.op_vram_write) > csm->vram_limit) || |
| ((csm->read_used + csm->gart_write_used + sizes.op_gart_write + sizes.op_read) > csm->gart_limit)) { |
| return RADEON_CS_SPACE_FLUSH; |
| } |
| |
| csm->gart_write_used += sizes.op_gart_write; |
| csm->vram_write_used += sizes.op_vram_write; |
| csm->read_used += sizes.op_read; |
| /* commit */ |
| for (i = 0; i < cs->bo_count; i++) { |
| bo = cs->bos[i].bo; |
| bo->space_accounted = cs->bos[i].new_accounted; |
| } |
| if (new_tmp) |
| new_tmp->bo->space_accounted = new_tmp->new_accounted; |
| |
| return RADEON_CS_SPACE_OK; |
| } |
| |
| void radeon_cs_space_add_persistent_bo(struct radeon_cs *cs, struct radeon_bo *bo, uint32_t read_domains, uint32_t write_domain) |
| { |
| struct radeon_cs_int *csi = (struct radeon_cs_int *)cs; |
| struct radeon_bo_int *boi = (struct radeon_bo_int *)bo; |
| int i; |
| for (i = 0; i < csi->bo_count; i++) { |
| if (csi->bos[i].bo == boi && |
| csi->bos[i].read_domains == read_domains && |
| csi->bos[i].write_domain == write_domain) |
| return; |
| } |
| radeon_bo_ref(bo); |
| i = csi->bo_count; |
| csi->bos[i].bo = boi; |
| csi->bos[i].read_domains = read_domains; |
| csi->bos[i].write_domain = write_domain; |
| csi->bos[i].new_accounted = 0; |
| csi->bo_count++; |
| |
| assert(csi->bo_count < MAX_SPACE_BOS); |
| } |
| |
| static int radeon_cs_check_space_internal(struct radeon_cs_int *cs, |
| struct radeon_cs_space_check *tmp_bo) |
| { |
| int ret; |
| int flushed = 0; |
| |
| again: |
| ret = radeon_cs_do_space_check(cs, tmp_bo); |
| if (ret == RADEON_CS_SPACE_OP_TO_BIG) |
| return -1; |
| if (ret == RADEON_CS_SPACE_FLUSH) { |
| (*cs->space_flush_fn)(cs->space_flush_data); |
| if (flushed) |
| return -1; |
| flushed = 1; |
| goto again; |
| } |
| return 0; |
| } |
| |
| int radeon_cs_space_check_with_bo(struct radeon_cs *cs, |
| struct radeon_bo *bo, |
| uint32_t read_domains, uint32_t write_domain) |
| { |
| struct radeon_cs_int *csi = (struct radeon_cs_int *)cs; |
| struct radeon_bo_int *boi = (struct radeon_bo_int *)bo; |
| struct radeon_cs_space_check temp_bo; |
| |
| int ret = 0; |
| |
| if (bo) { |
| temp_bo.bo = boi; |
| temp_bo.read_domains = read_domains; |
| temp_bo.write_domain = write_domain; |
| temp_bo.new_accounted = 0; |
| } |
| |
| ret = radeon_cs_check_space_internal(csi, bo ? &temp_bo : NULL); |
| return ret; |
| } |
| |
| int radeon_cs_space_check(struct radeon_cs *cs) |
| { |
| struct radeon_cs_int *csi = (struct radeon_cs_int *)cs; |
| return radeon_cs_check_space_internal(csi, NULL); |
| } |
| |
| void radeon_cs_space_reset_bos(struct radeon_cs *cs) |
| { |
| struct radeon_cs_int *csi = (struct radeon_cs_int *)cs; |
| int i; |
| for (i = 0; i < csi->bo_count; i++) { |
| radeon_bo_unref((struct radeon_bo *)csi->bos[i].bo); |
| csi->bos[i].bo = NULL; |
| csi->bos[i].read_domains = 0; |
| csi->bos[i].write_domain = 0; |
| csi->bos[i].new_accounted = 0; |
| } |
| csi->bo_count = 0; |
| } |
