This just hides the existing obj->dirty flag inside a trivial inline setter, to discourage non-GEM code from looking too closely.
Existing code that sets obj->dirty is then changed to use the function instead. Inspired-by: http://www.spinics.net/lists/intel-gfx/msg92390.html Cc: Chris Wilson <[email protected]> Signed-off-by: Dave Gordon <[email protected]> --- drivers/gpu/drm/i915/i915_drv.h | 11 +++++++++++ drivers/gpu/drm/i915/i915_gem.c | 6 +++--- drivers/gpu/drm/i915/i915_gem_context.c | 2 +- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 +- drivers/gpu/drm/i915/intel_lrc.c | 6 +++--- 5 files changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 32f0597..dfa45ef 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3004,6 +3004,17 @@ static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) obj->pages_pin_count++; } +/* + * Flag the object content as having changed since the last call to + * i915_gem_object_pin_pages() above, so that the new content is not + * lost after the next call to i915_gem_object_unpin_pages() below + */ +static inline void i915_gem_object_mark_dirty(struct drm_i915_gem_object *obj) +{ + WARN_ON(obj->pages_pin_count == 0); + obj->dirty = true; +} + static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) { BUG_ON(obj->pages_pin_count == 0); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d493e79..3fd8cb4 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -931,9 +931,9 @@ int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj, intel_fb_obj_invalidate(obj, ORIGIN_CPU); i915_gem_object_pin_pages(obj); + i915_gem_object_mark_dirty(obj); offset = args->offset; - obj->dirty = 1; for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, offset >> PAGE_SHIFT) { @@ -3791,7 +3791,7 @@ static bool i915_gem_valid_gtt_space(struct i915_vma *vma, if (write) { obj->base.read_domains = I915_GEM_DOMAIN_GTT; obj->base.write_domain = I915_GEM_DOMAIN_GTT; - obj->dirty = 1; + i915_gem_object_mark_dirty(obj); } trace_i915_gem_object_change_domain(obj, @@ -5362,7 +5362,7 @@ struct drm_i915_gem_object * i915_gem_object_pin_pages(obj); sg = obj->pages; bytes = sg_copy_from_buffer(sg->sgl, sg->nents, (void *)data, size); - obj->dirty = 1; /* Backing store is now out of date */ + i915_gem_object_mark_dirty(obj); /* Backing store is out of date */ i915_gem_object_unpin_pages(obj); if (WARN_ON(bytes != size)) { diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 4e12bae..69b8391 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -747,7 +747,7 @@ static int do_rcs_switch(struct drm_i915_gem_request *req) * able to defer doing this until we know the object would be * swapped, but there is no way to do that yet. */ - from->legacy_hw_ctx.rcs_state->dirty = 1; + i915_gem_object_mark_dirty(from->legacy_hw_ctx.rcs_state); /* obj is kept alive until the next request by its active ref */ i915_gem_object_ggtt_unpin(from->legacy_hw_ctx.rcs_state); diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 6f4f2a6..584b329 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1109,7 +1109,7 @@ static bool only_mappable_for_reloc(unsigned int flags) u32 old_read = obj->base.read_domains; u32 old_write = obj->base.write_domain; - obj->dirty = 1; /* be paranoid */ + i915_gem_object_mark_dirty(obj); /* be paranoid */ obj->base.write_domain = obj->base.pending_write_domain; if (obj->base.write_domain == 0) obj->base.pending_read_domains |= obj->base.read_domains; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 2b7e6bb..15d341e 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2451,7 +2451,7 @@ static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine) DRM_DEBUG_DRIVER("Could not map object pages! (%d)\n", ret); return ret; } - ctx_obj->dirty = true; + i915_gem_object_mark_dirty(ctx_obj); /* The second page of the context object contains some fields which must * be set up prior to the first execution. */ @@ -2735,9 +2735,9 @@ void intel_lr_context_reset(struct drm_i915_private *dev_priv, if (WARN_ON(IS_ERR(vaddr))) continue; - reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE; - ctx_obj->dirty = true; + i915_gem_object_mark_dirty(ctx_obj); + reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE; reg_state[CTX_RING_HEAD+1] = 0; reg_state[CTX_RING_TAIL+1] = 0; -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
