From 7b6f846785f41d57917e36851c120cfbe87f0809 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Fri, 26 Mar 2021 15:51:39 +0100 Subject: drm/tegra: Support sector layout on Tegra194 Tegra194 has a special physical address bit that enables some memory swizzling logic to support different sector layouts. Support the bit that selects the sector layout which is passed in the framebuffer modifier. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/plane.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/gpu/drm/tegra/plane.c') diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c index 793da5d675d2..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; -- cgit