[PATCH 10/11] drm/vmwgfx: Switch over to internal atomic API for STDU
Sinclair Yeh
syeh at vmware.com
Mon Mar 27 22:01:03 UTC 2017
Switch over to using internal atomic API for mode set.
This removes the legacy set_config API, replacing it with
drm_atomic_helper_set_config(). The DRM helper will use various
vmwgfx-specific atomic functions to set a mode.
DRIVER_ATOMIC capability flag is not yet set, so the user mode
will still use the legacy mode set IOCTL.
v2:
* Avoid a clash between page-flip pinning and setcrtc pinning, modify
the page-flip code to use the page-flip helper and the atomic callbacks.
To enable this, we will need to add a wrapper around atomic_commit.
* Add vmw_kms_set_config() to work around vmwgfx xorg driver bug
Signed-off-by: Sinclair Yeh <syeh at vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom at vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 20 +++
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 1 +
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 325 ++++-------------------------------
3 files changed, 51 insertions(+), 295 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 6b593aaf..7104796 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -2923,3 +2923,23 @@ vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv,
"implicit_placement", 0, 1);
}
+
+
+/**
+ * vmw_kms_set_config - Wrapper around drm_atomic_helper_set_config
+ *
+ * @set: The configuration to set.
+ *
+ * The vmwgfx Xorg driver doesn't assign the mode::type member, which
+ * when drm_mode_set_crtcinfo is called as part of the configuration setting
+ * causes it to return incorrect crtc dimensions causing severe problems in
+ * the vmwgfx modesetting. So explicitly clear that member before calling
+ * into drm_atomic_helper_set_config.
+ */
+int vmw_kms_set_config(struct drm_mode_set *set)
+{
+ if (set && set->mode)
+ set->mode->type = 0;
+
+ return drm_atomic_helper_set_config(set);
+}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index 3251562..0016f07 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -451,5 +451,6 @@ int vmw_kms_stdu_dma(struct vmw_private *dev_priv,
bool to_surface,
bool interruptible);
+int vmw_kms_set_config(struct drm_mode_set *set);
#endif
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 708d063..ff00817 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -104,8 +104,7 @@ struct vmw_stdu_surface_copy {
*/
struct vmw_screen_target_display_unit {
struct vmw_display_unit base;
-
- struct vmw_surface *display_srf;
+ const struct vmw_surface *display_srf;
enum stdu_content_type content_fb_type;
bool defined;
@@ -118,32 +117,6 @@ static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
/******************************************************************************
- * Screen Target Display Unit helper Functions
- *****************************************************************************/
-
-/**
- * vmw_stdu_unpin_display - unpins the resource associated with display surface
- *
- * @stdu: contains the display surface
- *
- * If the display surface was privatedly allocated by
- * vmw_surface_gb_priv_define() and not registered as a framebuffer, then it
- * won't be automatically cleaned up when all the framebuffers are freed. As
- * such, we have to explicitly call vmw_resource_unreference() to get it freed.
- */
-static void vmw_stdu_unpin_display(struct vmw_screen_target_display_unit *stdu)
-{
- if (stdu->display_srf) {
- struct vmw_resource *res = &stdu->display_srf->res;
-
- vmw_resource_unpin(res);
- vmw_surface_unreference(&stdu->display_srf);
- }
-}
-
-
-
-/******************************************************************************
* Screen Target Display Unit CRTC Functions
*****************************************************************************/
@@ -228,7 +201,7 @@ static int vmw_stdu_define_st(struct vmw_private *dev_priv,
*/
static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
struct vmw_screen_target_display_unit *stdu,
- struct vmw_resource *res)
+ const struct vmw_resource *res)
{
SVGA3dSurfaceImageId image;
@@ -377,129 +350,6 @@ static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
return ret;
}
-/**
- * vmw_stdu_bind_fb - Bind an fb to a defined screen target
- *
- * @dev_priv: Pointer to a device private struct.
- * @crtc: The crtc holding the screen target.
- * @mode: The mode currently used by the screen target. Must be non-NULL.
- * @new_fb: The new framebuffer to bind. Must be non-NULL.
- *
- * RETURNS:
- * 0 on success, error code on failure.
- */
-static int vmw_stdu_bind_fb(struct vmw_private *dev_priv,
- struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_framebuffer *new_fb)
-{
- struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc);
- struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
- struct vmw_surface *new_display_srf = NULL;
- enum stdu_content_type new_content_type;
- struct vmw_framebuffer_surface *new_vfbs;
- int ret;
-
- WARN_ON_ONCE(!stdu->defined);
-
- new_vfbs = (vfb->dmabuf) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
-
- if (new_vfbs && new_vfbs->surface->base_size.width == mode->hdisplay &&
- new_vfbs->surface->base_size.height == mode->vdisplay)
- new_content_type = SAME_AS_DISPLAY;
- else if (vfb->dmabuf)
- new_content_type = SEPARATE_DMA;
- else
- new_content_type = SEPARATE_SURFACE;
-
- if (new_content_type != SAME_AS_DISPLAY &&
- !stdu->display_srf) {
- struct vmw_surface content_srf;
- struct drm_vmw_size display_base_size = {0};
-
- display_base_size.width = mode->hdisplay;
- display_base_size.height = mode->vdisplay;
- display_base_size.depth = 1;
-
- /*
- * If content buffer is a DMA buf, then we have to construct
- * surface info
- */
- if (new_content_type == SEPARATE_DMA) {
-
- switch (new_fb->format->cpp[0] * 8) {
- case 32:
- content_srf.format = SVGA3D_X8R8G8B8;
- break;
-
- case 16:
- content_srf.format = SVGA3D_R5G6B5;
- break;
-
- case 8:
- content_srf.format = SVGA3D_P8;
- break;
-
- default:
- DRM_ERROR("Invalid format\n");
- return -EINVAL;
- }
-
- content_srf.flags = 0;
- content_srf.mip_levels[0] = 1;
- content_srf.multisample_count = 0;
- } else {
- content_srf = *new_vfbs->surface;
- }
-
-
- ret = vmw_surface_gb_priv_define(crtc->dev,
- 0, /* because kernel visible only */
- content_srf.flags,
- content_srf.format,
- true, /* a scanout buffer */
- content_srf.mip_levels[0],
- content_srf.multisample_count,
- 0,
- display_base_size,
- &new_display_srf);
- if (unlikely(ret != 0)) {
- DRM_ERROR("Could not allocate screen target surface.\n");
- return ret;
- }
- } else if (new_content_type == SAME_AS_DISPLAY) {
- new_display_srf = vmw_surface_reference(new_vfbs->surface);
- }
-
- if (new_display_srf) {
- /* Pin new surface before flipping */
- ret = vmw_resource_pin(&new_display_srf->res, false);
- if (ret)
- goto out_srf_unref;
-
- ret = vmw_stdu_bind_st(dev_priv, stdu, &new_display_srf->res);
- if (ret)
- goto out_srf_unpin;
-
- /* Unpin and unreference old surface */
- vmw_stdu_unpin_display(stdu);
-
- /* Transfer the reference */
- stdu->display_srf = new_display_srf;
- new_display_srf = NULL;
- }
-
- crtc->primary->fb = new_fb;
- stdu->content_fb_type = new_content_type;
- return 0;
-
-out_srf_unpin:
- vmw_resource_unpin(&new_display_srf->res);
-out_srf_unref:
- vmw_surface_unreference(&new_display_srf);
- return ret;
-}
-
/**
* vmw_stdu_crtc_mode_set_nofb - Updates screen target size
@@ -601,136 +451,6 @@ static void vmw_stdu_crtc_helper_disable(struct drm_crtc *crtc)
}
/**
- * vmw_stdu_crtc_set_config - Sets a mode
- *
- * @set: mode parameters
- *
- * This function is the device-specific portion of the DRM CRTC mode set.
- * For the SVGA device, we do this by defining a Screen Target, binding a
- * GB Surface to that target, and finally update the screen target.
- *
- * RETURNS:
- * 0 on success, error code otherwise
- */
-static int vmw_stdu_crtc_set_config(struct drm_mode_set *set)
-{
- struct vmw_private *dev_priv;
- struct vmw_framebuffer *vfb;
- struct vmw_screen_target_display_unit *stdu;
- struct drm_display_mode *mode;
- struct drm_framebuffer *new_fb;
- struct drm_crtc *crtc;
- struct drm_encoder *encoder;
- struct drm_connector *connector;
- bool turning_off;
- int ret;
-
-
- if (!set || !set->crtc)
- return -EINVAL;
-
- crtc = set->crtc;
- stdu = vmw_crtc_to_stdu(crtc);
- mode = set->mode;
- new_fb = set->fb;
- dev_priv = vmw_priv(crtc->dev);
- turning_off = set->num_connectors == 0 || !mode || !new_fb;
- vfb = (new_fb) ? vmw_framebuffer_to_vfb(new_fb) : NULL;
-
- if (set->num_connectors > 1) {
- DRM_ERROR("Too many connectors\n");
- return -EINVAL;
- }
-
- if (set->num_connectors == 1 &&
- set->connectors[0] != &stdu->base.connector) {
- DRM_ERROR("Connectors don't match %p %p\n",
- set->connectors[0], &stdu->base.connector);
- return -EINVAL;
- }
-
- if (!turning_off && (set->x + mode->hdisplay > new_fb->width ||
- set->y + mode->vdisplay > new_fb->height)) {
- DRM_ERROR("Set outside of framebuffer\n");
- return -EINVAL;
- }
-
- /* Only one active implicit frame-buffer at a time. */
- mutex_lock(&dev_priv->global_kms_state_mutex);
- if (!turning_off && stdu->base.is_implicit && dev_priv->implicit_fb &&
- !(dev_priv->num_implicit == 1 && stdu->base.active_implicit)
- && dev_priv->implicit_fb != vfb) {
- mutex_unlock(&dev_priv->global_kms_state_mutex);
- DRM_ERROR("Multiple implicit framebuffers not supported.\n");
- return -EINVAL;
- }
- mutex_unlock(&dev_priv->global_kms_state_mutex);
-
- /* Since they always map one to one these are safe */
- connector = &stdu->base.connector;
- encoder = &stdu->base.encoder;
-
- if (stdu->defined) {
- ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
- if (ret)
- return ret;
-
- vmw_stdu_unpin_display(stdu);
- (void) vmw_stdu_update_st(dev_priv, stdu);
- vmw_kms_del_active(dev_priv, &stdu->base);
-
- ret = vmw_stdu_destroy_st(dev_priv, stdu);
- if (ret)
- return ret;
-
- crtc->primary->fb = NULL;
- crtc->enabled = false;
- encoder->crtc = NULL;
- connector->encoder = NULL;
- stdu->content_fb_type = SAME_AS_DISPLAY;
- crtc->x = set->x;
- crtc->y = set->y;
- }
-
- if (turning_off)
- return 0;
-
- /*
- * Steps to displaying a surface, assume surface is already
- * bound:
- * 1. define a screen target
- * 2. bind a fb to the screen target
- * 3. update that screen target (this is done later by
- * vmw_kms_stdu_do_surface_dirty_or_present)
- */
- /*
- * Note on error handling: We can't really restore the crtc to
- * it's original state on error, but we at least update the
- * current state to what's submitted to hardware to enable
- * future recovery.
- */
- vmw_svga_enable(dev_priv);
- ret = vmw_stdu_define_st(dev_priv, stdu, mode, set->x, set->y);
- if (ret)
- return ret;
-
- crtc->x = set->x;
- crtc->y = set->y;
- crtc->mode = *mode;
-
- ret = vmw_stdu_bind_fb(dev_priv, crtc, mode, new_fb);
- if (ret)
- return ret;
-
- vmw_kms_add_active(dev_priv, &stdu->base, vfb);
- crtc->enabled = true;
- connector->encoder = encoder;
- encoder->crtc = crtc;
-
- return 0;
-}
-
-/**
* vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
*
* @crtc: CRTC to attach FB to
@@ -756,9 +476,9 @@ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
- struct vmw_screen_target_display_unit *stdu;
- struct drm_vmw_rect vclips;
+ struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc);
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
+ struct drm_vmw_rect vclips;
int ret;
dev_priv = vmw_priv(crtc->dev);
@@ -767,25 +487,42 @@ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc))
return -EINVAL;
- ret = vmw_stdu_bind_fb(dev_priv, crtc, &crtc->mode, new_fb);
- if (ret)
+ /*
+ * We're always async, but the helper doesn't know how to set async
+ * so lie to the helper. Also, the helper expects someone
+ * to pick the event up from the crtc state, and if nobody does,
+ * it will free it. Since we handle the event in this function,
+ * don't hand it to the helper.
+ */
+ flags &= ~DRM_MODE_PAGE_FLIP_ASYNC;
+ ret = drm_atomic_helper_page_flip(crtc, new_fb, NULL, flags);
+ if (ret) {
+ DRM_ERROR("Page flip error %d.\n", ret);
return ret;
+ }
if (stdu->base.is_implicit)
vmw_kms_update_implicit_fb(dev_priv, crtc);
+ /*
+ * Now that we've bound a new surface to the screen target,
+ * update the contents.
+ */
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
+
if (vfb->dmabuf)
ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips,
1, 1, true, false);
else
ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips,
NULL, 0, 0, 1, 1, NULL);
- if (ret)
+ if (ret) {
+ DRM_ERROR("Page flip update error %d.\n", ret);
return ret;
+ }
if (event) {
struct vmw_fence_obj *fence = NULL;
@@ -802,7 +539,7 @@ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
true);
vmw_fence_obj_unreference(&fence);
} else {
- vmw_fifo_flush(dev_priv, false);
+ (void) vmw_fifo_flush(dev_priv, false);
}
return 0;
@@ -1123,7 +860,7 @@ static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
.reset = vmw_du_crtc_reset,
.atomic_duplicate_state = vmw_du_crtc_duplicate_state,
.atomic_destroy_state = vmw_du_crtc_destroy_state,
- .set_config = vmw_stdu_crtc_set_config,
+ .set_config = vmw_kms_set_config,
.page_flip = vmw_stdu_crtc_page_flip,
};
@@ -1425,8 +1162,8 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
- .update_plane = drm_primary_helper_update,
- .disable_plane = drm_primary_helper_disable,
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_primary_plane_destroy,
.reset = vmw_du_plane_reset,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
@@ -1434,8 +1171,8 @@ static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
};
static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
- .update_plane = vmw_du_cursor_plane_update,
- .disable_plane = vmw_du_cursor_plane_disable,
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_cursor_plane_destroy,
.reset = vmw_du_plane_reset,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
@@ -1625,8 +1362,6 @@ static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
*/
static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
{
- vmw_stdu_unpin_display(stdu);
-
vmw_du_cleanup(&stdu->base);
kfree(stdu);
}
--
2.7.4
More information about the dri-devel
mailing list