diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-06-20 00:45:42 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-06-20 09:57:09 +0100 |
| commit | 033ef711bbfb671ae58a1acb0f8440889c6000c6 (patch) | |
| tree | cee8a692489c8e9a52068ef43b50307c4f159dc7 /drivers/gpu/drm/i915/gvt/cmd_parser.c | |
| parent | 4fb33953438bf3c67c655a4d187f1645446863fb (diff) | |
drm/i915/gvt: Drop redundant prepare_write/pin_pages
Since gvt calls pin_map for the shadow batch buffer, this makes the
action of prepare_write [+pin_pages] redundant. We can write into the
obj->mm.mapping directory and the flush_map routine knows when it has to
flush the cpu cache afterwards.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200619234543.17499-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/cmd_parser.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/cmd_parser.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 8b87f130f7f1..f1940939260a 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -1904,19 +1904,10 @@ static int perform_bb_shadow(struct parser_exec_state *s) goto err_free_bb; } - ret = i915_gem_object_prepare_write(bb->obj, &bb->clflush); - if (ret) - goto err_free_obj; - bb->va = i915_gem_object_pin_map(bb->obj, I915_MAP_WB); if (IS_ERR(bb->va)) { ret = PTR_ERR(bb->va); - goto err_finish_shmem_access; - } - - if (bb->clflush & CLFLUSH_BEFORE) { - drm_clflush_virt_range(bb->va, bb->obj->base.size); - bb->clflush &= ~CLFLUSH_BEFORE; + goto err_free_obj; } ret = copy_gma_to_hva(s->vgpu, mm, @@ -1935,7 +1926,6 @@ static int perform_bb_shadow(struct parser_exec_state *s) INIT_LIST_HEAD(&bb->list); list_add(&bb->list, &s->workload->shadow_bb); - bb->accessing = true; bb->bb_start_cmd_va = s->ip_va; if ((s->buf_type == BATCH_BUFFER_INSTRUCTION) && (!s->is_ctx_wa)) @@ -1956,8 +1946,6 @@ static int perform_bb_shadow(struct parser_exec_state *s) return 0; err_unmap: i915_gem_object_unpin_map(bb->obj); -err_finish_shmem_access: - i915_gem_object_finish_access(bb->obj); err_free_obj: i915_gem_object_put(bb->obj); err_free_bb: |