diff options
Diffstat (limited to 'radeon/radeon_cs_space.c')
| -rw-r--r-- | radeon/radeon_cs_space.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/radeon/radeon_cs_space.c b/radeon/radeon_cs_space.c new file mode 100644 index 00000000..4c1ef93e --- /dev/null +++ b/radeon/radeon_cs_space.c @@ -0,0 +1,234 @@ +/* + * 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" + +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 *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(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 == RADEON_GEM_DOMAIN_VRAM) + sizes->op_vram_write += bo->size; + else if (write_domain == RADEON_GEM_DOMAIN_GTT) + sizes->op_gart_write += bo->size; + else + sizes->op_read += bo->size; + sc->new_accounted = (read_domains << 16) | write_domain; + } 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 *cs, struct radeon_cs_space_check *new_tmp) +{ + struct radeon_cs_manager *csm = cs->csm; + int i; + struct radeon_bo *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) +{ + int i; + for (i = 0; i < cs->bo_count; i++) { + if (cs->bos[i].bo == bo && + cs->bos[i].read_domains == read_domains && + cs->bos[i].write_domain == write_domain) + return; + } + radeon_bo_ref(bo); + i = cs->bo_count; + cs->bos[i].bo = bo; + cs->bos[i].read_domains = read_domains; + cs->bos[i].write_domain = write_domain; + cs->bos[i].new_accounted = 0; + cs->bo_count++; + + assert(cs->bo_count < MAX_SPACE_BOS); +} + +static int radeon_cs_check_space_internal(struct radeon_cs *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_space_check temp_bo; + int ret = 0; + + if (bo) { + temp_bo.bo = bo; + temp_bo.read_domains = read_domains; + temp_bo.write_domain = write_domain; + temp_bo.new_accounted = 0; + } + + ret = radeon_cs_check_space_internal(cs, bo ? &temp_bo : NULL); + return ret; +} + +int radeon_cs_space_check(struct radeon_cs *cs) +{ + return radeon_cs_check_space_internal(cs, NULL); +} + +void radeon_cs_space_reset_bos(struct radeon_cs *cs) +{ + int i; + for (i = 0; i < cs->bo_count; i++) { + radeon_bo_unref(cs->bos[i].bo); + cs->bos[i].bo = NULL; + cs->bos[i].read_domains = 0; + cs->bos[i].write_domain = 0; + cs->bos[i].new_accounted = 0; + } + cs->bo_count = 0; +} + + |