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/*
* 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_bocs_wrapper.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_VRAM) {
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;
}
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