C++ radeon_bo_unref函数代码示例

static int r600_cs_set_age(struct radeon_cs_int *csi) /* -------------- */
{
    struct r600_cs_manager_legacy *csm = (struct r600_cs_manager_legacy*)csi->csm;
    struct r600_cs_reloc_legacy *relocs;
    int i;

    relocs = (struct r600_cs_reloc_legacy *)csi->relocs;
    for (i = 0; i < csi->crelocs; i++) {
        radeon_bo_legacy_pending(relocs[i].base.bo, csm->pending_age);
        radeon_bo_unref(relocs[i].base.bo);
    }
    return 0;
}

int radeon_uvd_resume(struct radeon_device *rdev)
{
	int r;

	if (rdev->uvd.vcpu_bo == NULL)
		return -EINVAL;

	r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
	if (r) {
		radeon_bo_unref(&rdev->uvd.vcpu_bo);
		dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
		return r;
	}

	/* Have been pin in cpu unmap unpin */
	radeon_bo_kunmap(rdev->uvd.vcpu_bo);
	radeon_bo_unpin(rdev->uvd.vcpu_bo);

	r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
			  &rdev->uvd.gpu_addr);
	if (r) {
		radeon_bo_unreserve(rdev->uvd.vcpu_bo);
		radeon_bo_unref(&rdev->uvd.vcpu_bo);
		dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
		return r;
	}

	r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
	if (r) {
		dev_err(rdev->dev, "(%d) UVD map failed\n", r);
		return r;
	}

	radeon_bo_unreserve(rdev->uvd.vcpu_bo);

	return 0;
}

void radeon_miptree_unreference(radeon_mipmap_tree **ptr)
{
	radeon_mipmap_tree *mt = *ptr;
	if (!mt)
		return;

	assert(mt->refcount > 0);

	mt->refcount--;
	if (!mt->refcount) {
		radeon_bo_unref(mt->bo);
		free(mt);
	}

	*ptr = 0;
}

static void
radeon_delete_renderbuffer(struct gl_renderbuffer *rb)
{
  struct radeon_renderbuffer *rrb = radeon_renderbuffer(rb);

  radeon_print(RADEON_TEXTURE, RADEON_TRACE,
		"%s(rb %p, rrb %p) \n",
		__func__, rb, rrb);

  ASSERT(rrb);

  if (rrb && rrb->bo) {
    radeon_bo_unref(rrb->bo);
  }
  free(rrb);
}

/**
 * Called via glDeleteBuffersARB().
 */
static void
radeonDeleteBufferObject(struct gl_context * ctx,
                         struct gl_buffer_object *obj)
{
    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);

    if (obj->Pointer) {
        radeon_bo_unmap(radeon_obj->bo);
    }

    if (radeon_obj->bo) {
        radeon_bo_unref(radeon_obj->bo);
    }

    free(radeon_obj);
}

void radeon_uvd_fini(struct radeon_device *rdev)
{
	int r;

	if (rdev->uvd.vcpu_bo == NULL)
		return;

	r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
	if (!r) {
		radeon_bo_kunmap(rdev->uvd.vcpu_bo);
		radeon_bo_unpin(rdev->uvd.vcpu_bo);
		radeon_bo_unreserve(rdev->uvd.vcpu_bo);
	}

	radeon_bo_unref(&rdev->uvd.vcpu_bo);

	release_firmware(rdev->uvd_fw);
}

/**
 * Free memory associated with this texture image.
 */
void radeonFreeTexImageData(GLcontext *ctx, struct gl_texture_image *timage)
{
	radeon_texture_image* image = get_radeon_texture_image(timage);

	if (image->mt) {
		radeon_miptree_unreference(&image->mt);
		assert(!image->base.Data);
	} else {
		_mesa_free_texture_image_data(ctx, timage);
	}
	if (image->bo) {
		radeon_bo_unref(image->bo);
		image->bo = NULL;
	}
	if (timage->Data) {
		_mesa_free_texmemory(timage->Data);
		timage->Data = NULL;
	}
}

void radeon_uvd_fini(struct radeon_device *rdev)
{
	int r;

	if (rdev->uvd.vcpu_bo == NULL)
		return;

	r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
	if (!r) {
		radeon_bo_kunmap(rdev->uvd.vcpu_bo);
		radeon_bo_unpin(rdev->uvd.vcpu_bo);
		radeon_bo_unreserve(rdev->uvd.vcpu_bo);
	}

	radeon_bo_unref(&rdev->uvd.vcpu_bo);

	radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);

	release_firmware(rdev->uvd_fw);
}

/**
 * Free memory associated with this texture image.
 */
void radeonFreeTextureImageBuffer(struct gl_context *ctx, struct gl_texture_image *timage)
{
	radeon_texture_image* image = get_radeon_texture_image(timage);

	if (image->mt) {
		radeon_miptree_unreference(&image->mt);
	} else {
		_swrast_free_texture_image_buffer(ctx, timage);
	}
	if (image->bo) {
		radeon_bo_unref(image->bo);
		image->bo = NULL;
	}
	if (image->base.Buffer) {
		_mesa_align_free(image->base.Buffer);
		image->base.Buffer = NULL;
	}

	free(image->base.ImageOffsets);
	image->base.ImageOffsets = NULL;
}

static void
radeon_image_target_renderbuffer_storage(struct gl_context *ctx,
                                         struct gl_renderbuffer *rb,
                                         void *image_handle)
{
   radeonContextPtr radeon = RADEON_CONTEXT(ctx);
   struct radeon_renderbuffer *rrb;
   __DRIscreen *screen;
   __DRIimage *image;

   screen = radeon->radeonScreen->driScreen;
   image = screen->dri2.image->lookupEGLImage(screen, image_handle,
					      screen->loaderPrivate);
   if (image == NULL)
      return;

   rrb = radeon_renderbuffer(rb);

   if (ctx->Driver.Flush)
      ctx->Driver.Flush(ctx); /* +r6/r7 */

   if (rrb->bo)
      radeon_bo_unref(rrb->bo);
   rrb->bo = image->bo;
   radeon_bo_ref(rrb->bo);
   fprintf(stderr, "image->bo: %p, name: %d, rbs: w %d -> p %d\n", image->bo, image->bo->handle,
           image->width, image->pitch);

   rrb->cpp = image->cpp;
   rrb->pitch = image->pitch * image->cpp;

   rb->Format = image->format;
   rb->InternalFormat = image->internal_format;
   rb->Width = image->width;
   rb->Height = image->height;
   rb->Format = image->format;
   rb->DataType = image->data_type;
   rb->_BaseFormat = _mesa_base_fbo_format(radeon->glCtx,
                                           image->internal_format);
}

/**
 * Allocate space for and store data in a buffer object.  Any data that was
 * previously stored in the buffer object is lost.  If data is NULL,
 * memory will be allocated, but no copy will occur.
 * Called via ctx->Driver.BufferData().
 * \return GL_TRUE for success, GL_FALSE if out of memory
 */
static GLboolean
radeonBufferData(struct gl_context * ctx,
                 GLenum target,
                 GLsizeiptrARB size,
                 const GLvoid * data,
                 GLenum usage,
                 struct gl_buffer_object *obj)
{
    radeonContextPtr radeon = RADEON_CONTEXT(ctx);
    struct radeon_buffer_object *radeon_obj = get_radeon_buffer_object(obj);

    radeon_obj->Base.Size = size;
    radeon_obj->Base.Usage = usage;

    if (radeon_obj->bo != NULL) {
        radeon_bo_unref(radeon_obj->bo);
        radeon_obj->bo = NULL;
    }

    if (size != 0) {
        radeon_obj->bo = radeon_bo_open(radeon->radeonScreen->bom,
                                        0,
                                        size,
                                        32,
                                        RADEON_GEM_DOMAIN_GTT,
                                        0);

        if (!radeon_obj->bo)
            return GL_FALSE;

        if (data != NULL) {
            radeon_bo_map(radeon_obj->bo, GL_TRUE);

            memcpy(radeon_obj->bo->ptr, data, size);

            radeon_bo_unmap(radeon_obj->bo);
        }
    }
    return GL_TRUE;
}

void radeon_ttm_fini(struct radeon_device *rdev)
{
	int r;

	if (!rdev->mman.initialized)
		return;
	if (rdev->stollen_vga_memory) {
		r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
		if (r == 0) {
			radeon_bo_unpin(rdev->stollen_vga_memory);
			radeon_bo_unreserve(rdev->stollen_vga_memory);
		}
		radeon_bo_unref(&rdev->stollen_vga_memory);
	}
	ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_VRAM);
	ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT);
	ttm_bo_device_release(&rdev->mman.bdev);
	radeon_gart_fini(rdev);
	radeon_ttm_global_fini(rdev);
	rdev->mman.initialized = false;
	DRM_INFO("radeon: ttm finalized\n");
}

void r200FlushElts(struct gl_context *ctx)
{
   r200ContextPtr rmesa = R200_CONTEXT(ctx);
   int nr, elt_used = rmesa->tcl.elt_used;

   radeon_print(RADEON_RENDER, RADEON_VERBOSE, "%s %x %d\n", __FUNCTION__, rmesa->tcl.hw_primitive, elt_used);

   assert( rmesa->radeon.dma.flush == r200FlushElts );
   rmesa->radeon.dma.flush = NULL;

   nr = elt_used / 2;

   radeon_bo_unmap(rmesa->radeon.tcl.elt_dma_bo);

   r200FireEB(rmesa, nr, rmesa->tcl.hw_primitive);

   radeon_bo_unref(rmesa->radeon.tcl.elt_dma_bo);
   rmesa->radeon.tcl.elt_dma_bo = NULL;

   if (R200_ELT_BUF_SZ > elt_used)
     radeonReturnDmaRegion(&rmesa->radeon, R200_ELT_BUF_SZ - elt_used);
}

static int cs_gem_erase(struct radeon_cs_int *cs)
{
    struct cs_gem *csg = (struct cs_gem*)cs;
    unsigned i;

    if (csg->relocs_bo) {
        for (i = 0; i < csg->base.crelocs; i++) {
            if (csg->relocs_bo[i]) {
                /* bo might be referenced from another context so have to use atomic opertions */
                atomic_dec((atomic_t *)radeon_gem_get_reloc_in_cs((struct radeon_bo*)csg->relocs_bo[i]), cs->id);
                radeon_bo_unref((struct radeon_bo *)csg->relocs_bo[i]);
                csg->relocs_bo[i] = NULL;
            }
        }
    }
    cs->relocs_total_size = 0;
    cs->cdw = 0;
    cs->section_ndw = 0;
    cs->crelocs = 0;
    csg->chunks[0].length_dw = 0;
    csg->chunks[1].length_dw = 0;
    return 0;
}

static int cs_gem_emit(struct radeon_cs_int *cs)
{
    struct cs_gem *csg = (struct cs_gem*)cs;
    uint64_t chunk_array[2];
    unsigned i;
    int r;

    while (cs->cdw & 7)
	radeon_cs_write_dword((struct radeon_cs *)cs, 0x80000000);

#if CS_BOF_DUMP
    cs_gem_dump_bof(cs);
#endif
    csg->chunks[0].length_dw = cs->cdw;

    chunk_array[0] = (uint64_t)(uintptr_t)&csg->chunks[0];
    chunk_array[1] = (uint64_t)(uintptr_t)&csg->chunks[1];

    csg->cs.num_chunks = 2;
    csg->cs.chunks = (uint64_t)(uintptr_t)chunk_array;

    r = drmCommandWriteRead(cs->csm->fd, DRM_RADEON_CS,
                            &csg->cs, sizeof(struct drm_radeon_cs));
    for (i = 0; i < csg->base.crelocs; i++) {
        csg->relocs_bo[i]->space_accounted = 0;
        /* bo might be referenced from another context so have to use atomic opertions */
        atomic_dec((atomic_t *)radeon_gem_get_reloc_in_cs((struct radeon_bo*)csg->relocs_bo[i]), cs->id);
        radeon_bo_unref((struct radeon_bo *)csg->relocs_bo[i]);
        csg->relocs_bo[i] = NULL;
    }

    cs->csm->read_used = 0;
    cs->csm->vram_write_used = 0;
    cs->csm->gart_write_used = 0;
    return r;
}