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i915: workout max relocs from batch buffer size

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This commit is contained in:
Dave Airlie 2007-10-09 14:36:04 +10:00
parent 7e83c15fa0
commit 8909f1131a
3 changed files with 22 additions and 19 deletions
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32
src/mesa/drivers/dri/i915/intel_bufmgr_ttm.c
View file

@ -50,7 +50,6 @@
#define BUFMGR_DEBUG 0
#define MAX_RELOCS_PER_LIST 511
struct intel_reloc_info
{
GLuint type;
@ -100,6 +99,7 @@ typedef struct _dri_bufmgr_ttm {
unsigned int fence_type;
unsigned int fence_type_flush;
uint32_t max_relocs;
/** ttm relocation list */
struct intel_bo_list list;
struct intel_bo_list reloc_list;
@ -299,16 +299,15 @@ static int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, un
return ret;
}
#define RELOC0_STRIDE 4
#define RELOC0_HEADER 4
#define RELOC_BUF_SIZE ((RELOC0_HEADER + MAX_RELOCS_PER_LIST * RELOC0_STRIDE) * sizeof(uint32_t))
static int intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *cur_type)
#define RELOC_BUF_SIZE(x) ((I915_RELOC0_HEADER + x * I915_RELOC0_STRIDE) * sizeof(uint32_t))
static int intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *cur_type, int max_relocs)
{
int ret;
/* should allocate a drmBO here */
ret = drmBOCreate(fd, 0, RELOC_BUF_SIZE, 0,
ret = drmBOCreate(fd, 0, RELOC_BUF_SIZE(max_relocs), 0,
NULL, drm_bo_type_dc,
DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_MAPPABLE | DRM_BO_FLAG_CACHED,
0, &cur_type->buf);
@ -322,7 +321,7 @@ static int intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *
}
static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, struct intel_reloc_info *reloc_info)
static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, struct intel_reloc_info *reloc_info, uint32_t max_relocs)
{
struct intel_bo_reloc_node *rl_node, *cur;
drmMMListHead *rl, *l;
@ -352,7 +351,7 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
cur_type = &cur->type_list;
DRMINITLISTHEAD(&cur->type_list.head);
ret = intel_create_new_reloc_type_list(fd, cur_type);
ret = intel_create_new_reloc_type_list(fd, cur_type, max_relocs);
if (ret) {
return -1;
}
@ -382,7 +381,7 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
return -ENOMEM;
}
ret = intel_create_new_reloc_type_list(fd, cur_type);
ret = intel_create_new_reloc_type_list(fd, cur_type, max_relocs);
DRMLISTADDTAIL(&cur_type->head, &cur->type_list.head);
cur_type->relocs[0] = (reloc_info->type << 16);
@ -396,11 +395,11 @@ static int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, st
num_relocs = (reloc_start[0] & 0xffff);
reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER] = reloc_info->reloc;
reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER+1] = reloc_info->delta;
reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER+2] = reloc_info->index;
reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC0_HEADER] = reloc_info->reloc;
reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC0_HEADER+1] = reloc_info->delta;
reloc_start[num_relocs*I915_RELOC0_STRIDE + I915_RELOC0_HEADER+2] = reloc_info->index;
reloc_start[0]++;
if (((reloc_start[0] & 0xffff)) > (MAX_RELOCS_PER_LIST)) {
if (((reloc_start[0] & 0xffff)) > (max_relocs)) {
return -ENOMEM;
}
return 0;
@ -776,7 +775,7 @@ dri_ttm_emit_reloc(dri_bo *batch_buf, GLuint flags, GLuint delta, GLuint offset,
reloc.index = newItem;
reloc.handle = ttm_buf->drm_bo.handle;
intel_add_validate_reloc(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list, &reloc);
intel_add_validate_reloc(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list, &reloc, bufmgr_ttm->max_relocs);
return;
}
@ -820,7 +819,7 @@ dri_ttm_post_submit(dri_bo *batch_buf, dri_fence **last_fence)
*/
dri_bufmgr *
intel_bufmgr_ttm_init(int fd, unsigned int fence_type,
unsigned int fence_type_flush)
unsigned int fence_type_flush, int batch_size)
{
dri_bufmgr_ttm *bufmgr_ttm;
@ -830,6 +829,9 @@ intel_bufmgr_ttm_init(int fd, unsigned int fence_type,
bufmgr_ttm->fence_type_flush = fence_type_flush;
_glthread_INIT_MUTEX(bufmgr_ttm->mutex);
/* lets go with one relocation per every four dwords - purely heuristic */
bufmgr_ttm->max_relocs = batch_size / sizeof(uint32_t) / 4;
intel_create_bo_list(10, &bufmgr_ttm->list, NULL);
intel_create_bo_list(1, &bufmgr_ttm->reloc_list, NULL);

2
src/mesa/drivers/dri/i915/intel_bufmgr_ttm.h
View file

@ -12,6 +12,6 @@ dri_fence *intel_ttm_fence_create_from_arg(dri_bufmgr *bufmgr, const char *name,
dri_bufmgr *intel_bufmgr_ttm_init(int fd, unsigned int fence_type,
unsigned int fence_type_flush);
unsigned int fence_type_flush, int batch_size);
#endif

7
src/mesa/drivers/dri/i915/intel_screen.c
View file

@ -541,9 +541,10 @@ intelInitDriver(__DRIscreenPrivate * sPriv)
intelScreen->driScrnPriv->ddxMinor >= 9 &&
intelScreen->front.bo_handle != -1) {
intelScreen->bufmgr = intel_bufmgr_ttm_init(sPriv->fd,
DRM_FENCE_TYPE_EXE,
DRM_FENCE_TYPE_EXE |
DRM_I915_FENCE_TYPE_RW);
DRM_FENCE_TYPE_EXE,
DRM_FENCE_TYPE_EXE |
DRM_I915_FENCE_TYPE_RW,
BATCH_SZ);
if (intelScreen->bufmgr != NULL)
intelScreen->ttm = GL_TRUE;
}