diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 60 |
1 files changed, 53 insertions, 7 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index 2041c4d48daa..a04e0736318d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -43,7 +43,14 @@ #define vmw_connector_to_stdu(x) \ container_of(x, struct vmw_screen_target_display_unit, base.connector) - +/* + * Some renderers such as llvmpipe will align the width and height of their + * buffers to match their tile size. We need to keep this in mind when exposing + * modes to userspace so that this possible over-allocation will not exceed + * graphics memory. 64x64 pixels seems to be a reasonable upper bound for the + * tile size of current renderers. + */ +#define GPU_TILE_SIZE 64 enum stdu_content_type { SAME_AS_DISPLAY = 0, @@ -85,11 +92,6 @@ struct vmw_stdu_update { SVGA3dCmdUpdateGBScreenTarget body; }; -struct vmw_stdu_dma { - SVGA3dCmdHeader header; - SVGA3dCmdSurfaceDMA body; -}; - struct vmw_stdu_surface_copy { SVGA3dCmdHeader header; SVGA3dCmdSurfaceCopy body; @@ -414,6 +416,7 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc, { struct vmw_private *dev_priv; struct vmw_screen_target_display_unit *stdu; + struct drm_crtc_state *new_crtc_state; int ret; if (!crtc) { @@ -423,6 +426,7 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc, stdu = vmw_crtc_to_stdu(crtc); dev_priv = vmw_priv(crtc->dev); + new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); if (dev_priv->vkms_enabled) drm_crtc_vblank_off(crtc); @@ -434,6 +438,14 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc, (void) vmw_stdu_update_st(dev_priv, stdu); + /* Don't destroy the Screen Target if we are only setting the + * display as inactive + */ + if (new_crtc_state->enable && + !new_crtc_state->active && + !new_crtc_state->mode_changed) + return; + ret = vmw_stdu_destroy_st(dev_priv, stdu); if (ret) DRM_ERROR("Failed to destroy Screen Target\n"); @@ -829,7 +841,41 @@ static void vmw_stdu_connector_destroy(struct drm_connector *connector) vmw_stdu_destroy(vmw_connector_to_stdu(connector)); } +static enum drm_mode_status +vmw_stdu_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + enum drm_mode_status ret; + struct drm_device *dev = connector->dev; + struct vmw_private *dev_priv = vmw_priv(dev); + u64 assumed_cpp = dev_priv->assume_16bpp ? 2 : 4; + /* Align width and height to account for GPU tile over-alignment */ + u64 required_mem = ALIGN(mode->hdisplay, GPU_TILE_SIZE) * + ALIGN(mode->vdisplay, GPU_TILE_SIZE) * + assumed_cpp; + required_mem = ALIGN(required_mem, PAGE_SIZE); + + ret = drm_mode_validate_size(mode, dev_priv->stdu_max_width, + dev_priv->stdu_max_height); + if (ret != MODE_OK) + return ret; + + ret = drm_mode_validate_size(mode, dev_priv->texture_max_width, + dev_priv->texture_max_height); + if (ret != MODE_OK) + return ret; + if (required_mem > dev_priv->max_primary_mem) + return MODE_MEM; + + if (required_mem > dev_priv->max_mob_pages * PAGE_SIZE) + return MODE_MEM; + + if (required_mem > dev_priv->max_mob_size) + return MODE_MEM; + + return MODE_OK; +} static const struct drm_connector_funcs vmw_stdu_connector_funcs = { .dpms = vmw_du_connector_dpms, @@ -845,7 +891,7 @@ static const struct drm_connector_funcs vmw_stdu_connector_funcs = { static const struct drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = { .get_modes = vmw_connector_get_modes, - .mode_valid = vmw_connector_mode_valid + .mode_valid = vmw_stdu_connector_mode_valid }; |