From: Dave Airlie Date: Tue, 9 Oct 2007 04:36:04 +0000 (+1000) Subject: i915: workout max relocs from batch buffer size X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8909f1131ab4d9d117d79aee617eceabf3ea60c8;p=mesa.git i915: workout max relocs from batch buffer size --- diff --git a/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.c b/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.c index ae6de496281..be77b509590 100644 --- a/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.c +++ b/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.c @@ -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); diff --git a/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.h b/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.h index 642fe358f6a..0738839cefb 100644 --- a/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.h +++ b/src/mesa/drivers/dri/i915/intel_bufmgr_ttm.h @@ -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 diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c index 084de1004b7..cd4052616fe 100644 --- a/src/mesa/drivers/dri/i915/intel_screen.c +++ b/src/mesa/drivers/dri/i915/intel_screen.c @@ -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; }