From 904bb5e5817f5c5b42e6e3775699c728fd420284 Mon Sep 17 00:00:00 2001 From: Sinclair Yeh Date: Thu, 23 Mar 2017 14:29:22 -0700 Subject: [PATCH] drm/vmwgfx: Switch over to internal atomic API for STDU 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 Signed-off-by: Thomas Hellstrom Reviewed-by: Thomas Hellstrom --- 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 1071e10..fe226e7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -2885,3 +2885,23 @@ 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 de6a0b6..7689f47 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h @@ -449,5 +449,6 @@ 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 76ca5fa..b7999eb 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 @@ err_free: */ 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