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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c165
1 files changed, 147 insertions, 18 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 3b8235c7ee42..ef99df7463f3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -142,6 +142,63 @@ static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
/**
+ * vmw_stdu_dma_update - Update DMA buf dirty region on the SVGA device
+ *
+ * @dev_priv: VMW DRM device
+ * @file_priv: Pointer to a drm file private structure
+ * @vfbs: VMW framebuffer surface that may need a DMA buf update
+ * @x: top/left corner of the content area to blit from
+ * @y: top/left corner of the content area to blit from
+ * @width: width of the blit area
+ * @height: height of the blit area
+ *
+ * The SVGA device may have the DMA buf cached, so before letting the
+ * device use it as the source image for a subsequent operation, we
+ * update the cached copy.
+ *
+ * RETURNs:
+ * 0 on success, error code on failure
+ */
+static int vmw_stdu_dma_update(struct vmw_private *dev_priv,
+ struct drm_file *file_priv,
+ struct vmw_framebuffer_surface *vfbs,
+ uint32_t x, uint32_t y,
+ uint32_t width, uint32_t height)
+{
+ size_t fifo_size;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBImage body;
+ } img_update_cmd;
+
+
+ /* Only need to do this if the surface is a DMA buf proxy */
+ if (!vfbs->is_dmabuf_proxy)
+ return 0;
+
+ fifo_size = sizeof(img_update_cmd);
+
+ memset(&img_update_cmd, 0, fifo_size);
+ img_update_cmd.header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
+ img_update_cmd.header.size = sizeof(img_update_cmd.body);
+
+ img_update_cmd.body.image.sid = vfbs->surface->res.id;
+
+ img_update_cmd.body.box.x = x;
+ img_update_cmd.body.box.y = y;
+ img_update_cmd.body.box.w = width;
+ img_update_cmd.body.box.h = height;
+ img_update_cmd.body.box.d = 1;
+
+ return vmw_execbuf_process(file_priv, dev_priv, NULL,
+ (void *) &img_update_cmd,
+ fifo_size, 0, VMW_QUIRK_SRC_SID_OK,
+ NULL, NULL);
+}
+
+
+
+/**
* vmw_stdu_content_copy - copies an area from the content to display surface
*
* @dev_priv: VMW DRM device
@@ -166,11 +223,13 @@ static int vmw_stdu_content_copy(struct vmw_private *dev_priv,
uint32_t width, uint32_t height,
uint32_t display_x, uint32_t display_y)
{
- size_t fifo_size;
+ struct vmw_framebuffer_surface *content_vfbs;
+ size_t fifo_size;
int ret;
void *cmd;
+ u32 quirks = VMW_QUIRK_DST_SID_OK;
- struct vmw_surface_dma {
+ struct {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceDMA body;
SVGA3dCopyBox area;
@@ -193,24 +252,43 @@ static int vmw_stdu_content_copy(struct vmw_private *dev_priv,
return -EINVAL;
}
+
if (stdu->content_fb_type == SEPARATE_DMA) {
struct vmw_framebuffer *content_vfb;
- struct vmw_framebuffer_dmabuf *content_vfbd;
- struct vmw_framebuffer_surface *content_vfbs;
struct drm_vmw_size cur_size = {0};
const struct svga3d_surface_desc *desc;
+ enum SVGA3dSurfaceFormat format;
SVGA3dCmdSurfaceDMASuffix *suffix;
SVGAGuestPtr ptr;
+
content_vfb = vmw_framebuffer_to_vfb(stdu->content_fb);
- content_vfbd = vmw_framebuffer_to_vfbd(stdu->content_fb);
- content_vfbs = vmw_framebuffer_to_vfbs(stdu->content_fb);
cur_size.width = width;
cur_size.height = height;
cur_size.depth = 1;
- desc = svga3dsurface_get_desc(content_vfbs->surface->format);
+ /* Derive a SVGA3dSurfaceFormat for the DMA buf */
+ switch (content_vfb->base.bits_per_pixel) {
+ case 32:
+ format = SVGA3D_A8R8G8B8;
+ break;
+ case 24:
+ format = SVGA3D_X8R8G8B8;
+ break;
+ case 16:
+ format = SVGA3D_R5G6B5;
+ break;
+ case 15:
+ format = SVGA3D_A1R5G5B5;
+ break;
+ default:
+ DRM_ERROR("Invalid color depth: %d\n",
+ content_vfb->base.depth);
+ return -EINVAL;
+ }
+
+ desc = svga3dsurface_get_desc(format);
fifo_size = sizeof(surface_dma_cmd);
@@ -250,19 +328,40 @@ static int vmw_stdu_content_copy(struct vmw_private *dev_priv,
cmd = (void *) &surface_dma_cmd;
} else {
- struct vmw_framebuffer *content_vfb;
+ u32 src_id;
+
+
+ content_vfbs = vmw_framebuffer_to_vfbs(stdu->content_fb);
+
+ if (content_vfbs->is_dmabuf_proxy) {
+ ret = vmw_stdu_dma_update(dev_priv, file_priv,
+ content_vfbs,
+ content_x, content_y,
+ width, height);
+
+ if (ret != 0) {
+ DRM_ERROR("Failed to update cached DMA buf\n");
+ return ret;
+ }
- content_vfb = vmw_framebuffer_to_vfb(stdu->content_fb);
+ quirks |= VMW_QUIRK_SRC_SID_OK;
+ src_id = content_vfbs->surface->res.id;
+ } else {
+ struct vmw_framebuffer *content_vfb;
+ content_vfb = vmw_framebuffer_to_vfb(stdu->content_fb);
+ src_id = content_vfb->user_handle;
+ }
+
fifo_size = sizeof(surface_cpy_cmd);
- memset(&surface_cpy_cmd, 0, sizeof(surface_cpy_cmd));
+ memset(&surface_cpy_cmd, 0, fifo_size);
surface_cpy_cmd.header.id = SVGA_3D_CMD_SURFACE_COPY;
surface_cpy_cmd.header.size = sizeof(surface_cpy_cmd.body) +
sizeof(surface_cpy_cmd.area);
- surface_cpy_cmd.body.src.sid = content_vfb->user_handle;
+ surface_cpy_cmd.body.src.sid = src_id;
surface_cpy_cmd.body.dest.sid = stdu->display_srf->res.id;
surface_cpy_cmd.area.srcx = content_x;
@@ -276,8 +375,11 @@ static int vmw_stdu_content_copy(struct vmw_private *dev_priv,
cmd = (void *) &surface_cpy_cmd;
}
- ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
- fifo_size, 0, VMW_QUIRK_SCREENTARGET,
+
+
+ ret = vmw_execbuf_process(file_priv, dev_priv, NULL,
+ (void *) cmd,
+ fifo_size, 0, quirks,
NULL, NULL);
return ret;
@@ -391,7 +493,8 @@ static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
* vmw_stdu_update_st - Updates a Screen Target
*
* @dev_priv: VMW DRM device
- * @file_priv: Pointer to a drm file private structure
+ * @file_priv: Pointer to DRM file private structure. Set to NULL when
+ * we want to blank display.
* @stdu: display unit affected
* @update_area: area that needs to be updated
*
@@ -412,6 +515,7 @@ static int vmw_stdu_update_st(struct vmw_private *dev_priv,
u32 width, height;
u32 display_update_x, display_update_y;
unsigned short display_x1, display_y1, display_x2, display_y2;
+ int ret;
struct {
SVGA3dCmdHeader header;
@@ -444,8 +548,11 @@ static int vmw_stdu_update_st(struct vmw_private *dev_priv,
height = min(update_area->y2, display_y2) -
max(update_area->y1, display_y1);
+ /*
+ * If content is on a separate surface, then copy the dirty area to
+ * the display surface
+ */
if (file_priv && stdu->content_fb_type != SAME_AS_DISPLAY) {
- int ret;
ret = vmw_stdu_content_copy(dev_priv, file_priv,
stdu,
@@ -459,6 +566,29 @@ static int vmw_stdu_update_st(struct vmw_private *dev_priv,
}
}
+
+ /*
+ * If the display surface is the same as the content surface, then
+ * it may be backed by a DMA buf. If it is then we need to update
+ * the device's cached copy of the DMA buf before issuing the screen
+ * target update.
+ */
+ if (file_priv && stdu->content_fb_type == SAME_AS_DISPLAY) {
+ struct vmw_framebuffer_surface *vfbs;
+
+ vfbs = vmw_framebuffer_to_vfbs(stdu->content_fb);
+ ret = vmw_stdu_dma_update(dev_priv, file_priv,
+ vfbs,
+ max(update_area->x1, display_x1),
+ max(update_area->y1, display_y1),
+ width, height);
+
+ if (ret != 0) {
+ DRM_ERROR("Failed to update cached DMA buffer\n");
+ return ret;
+ }
+ }
+
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
@@ -1066,8 +1196,7 @@ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE)
return -ENOSYS;
- if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS) ||
- !(dev_priv->capabilities & SVGA_CAP_3D))
+ if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
return -ENOSYS;
ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
@@ -1333,7 +1462,7 @@ int vmw_kms_stdu_present(struct vmw_private *dev_priv,
cmd->body.dest.sid = stdu[cur_du]->display_srf->res.id;
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
- fifo_size, 0, VMW_QUIRK_SCREENTARGET,
+ fifo_size, 0, VMW_QUIRK_DST_SID_OK,
NULL, NULL);
if (unlikely(ret != 0))
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-01 19:55:47 +0300