diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/plane.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/plane.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c index 19e8847a164b..2e11b4b1f702 100644 --- a/drivers/gpu/drm/tegra/plane.c +++ b/drivers/gpu/drm/tegra/plane.c @@ -83,6 +83,22 @@ static void tegra_plane_atomic_destroy_state(struct drm_plane *plane, kfree(state); } +static bool tegra_plane_supports_sector_layout(struct drm_plane *plane) +{ + struct drm_crtc *crtc; + + drm_for_each_crtc(crtc, plane->dev) { + if (plane->possible_crtcs & drm_crtc_mask(crtc)) { + struct tegra_dc *dc = to_tegra_dc(crtc); + + if (!dc->soc->supports_sector_layout) + return false; + } + } + + return true; +} + static bool tegra_plane_format_mod_supported(struct drm_plane *plane, uint32_t format, uint64_t modifier) @@ -92,6 +108,14 @@ static bool tegra_plane_format_mod_supported(struct drm_plane *plane, if (modifier == DRM_FORMAT_MOD_LINEAR) return true; + /* check for the sector layout bit */ + if ((modifier >> 56) == DRM_FORMAT_MOD_VENDOR_NVIDIA) { + if (modifier & DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT) { + if (!tegra_plane_supports_sector_layout(plane)) + return false; + } + } + if (info->num_planes == 1) return true; @@ -119,6 +143,14 @@ static int tegra_dc_pin(struct tegra_dc *dc, struct tegra_plane_state *state) dma_addr_t phys_addr, *phys; struct sg_table *sgt; + /* + * If we're not attached to a domain, we already stored the + * physical address when the buffer was allocated. If we're + * part of a group that's shared between all display + * controllers, we've also already mapped the framebuffer + * through the SMMU. In both cases we can short-circuit the + * code below and retrieve the stored IOV address. + */ if (!domain || dc->client.group) phys = &phys_addr; else |