diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0354-drm-vc4-Advertise-supported-modifiers-for-planes.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0354-drm-vc4-Advertise-supported-modifiers-for-planes.patch | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0354-drm-vc4-Advertise-supported-modifiers-for-planes.patch b/target/linux/brcm2708/patches-4.14/950-0354-drm-vc4-Advertise-supported-modifiers-for-planes.patch new file mode 100644 index 0000000000..5bbb0576e6 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0354-drm-vc4-Advertise-supported-modifiers-for-planes.patch @@ -0,0 +1,97 @@ +From cc6f4a74861a987e8d95aa36f2d141c777e30425 Mon Sep 17 00:00:00 2001 +From: Daniel Stone <daniels@collabora.com> +Date: Tue, 8 Aug 2017 17:44:48 +0100 +Subject: [PATCH 354/454] drm/vc4: Advertise supported modifiers for planes + +The IN_FORMATS blob allows the kernel to advertise to userspace which +format/modifier combinations are supported, per plane. Use this to +advertise that we support both T_TILED and linear. + +v2: + - Only advertise T_TILED for RGB (Eric) + - Actually turn on allow_fb_modifiers (Eric) + +Signed-off-by: Daniel Stone <daniels@collabora.com> +Signed-off-by: Eric Anholt <eric@anholt.net> +Reviewed-by: Eric Anholt <eric@anholt.net> +Link: https://patchwork.freedesktop.org/patch/170828/ +(cherry picked from commit 423ad7b3cbd1158d080e20119a7a5f93a085a486) +--- + drivers/gpu/drm/vc4/vc4_kms.c | 1 + + drivers/gpu/drm/vc4/vc4_plane.c | 34 ++++++++++++++++++++++++++++++++- + 2 files changed, 34 insertions(+), 1 deletion(-) + +--- a/drivers/gpu/drm/vc4/vc4_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_kms.c +@@ -222,6 +222,7 @@ int vc4_kms_load(struct drm_device *dev) + dev->mode_config.funcs = &vc4_mode_funcs; + dev->mode_config.preferred_depth = 24; + dev->mode_config.async_page_flip = true; ++ dev->mode_config.allow_fb_modifiers = true; + + drm_mode_config_reset(dev); + +--- a/drivers/gpu/drm/vc4/vc4_plane.c ++++ b/drivers/gpu/drm/vc4/vc4_plane.c +@@ -867,6 +867,32 @@ out: + ctx); + } + ++static bool vc4_format_mod_supported(struct drm_plane *plane, ++ uint32_t format, ++ uint64_t modifier) ++{ ++ /* Support T_TILING for RGB formats only. */ ++ switch (format) { ++ case DRM_FORMAT_XRGB8888: ++ case DRM_FORMAT_ARGB8888: ++ case DRM_FORMAT_ABGR8888: ++ case DRM_FORMAT_XBGR8888: ++ case DRM_FORMAT_RGB565: ++ case DRM_FORMAT_BGR565: ++ case DRM_FORMAT_ARGB1555: ++ case DRM_FORMAT_XRGB1555: ++ return true; ++ case DRM_FORMAT_YUV422: ++ case DRM_FORMAT_YVU422: ++ case DRM_FORMAT_YUV420: ++ case DRM_FORMAT_YVU420: ++ case DRM_FORMAT_NV12: ++ case DRM_FORMAT_NV16: ++ default: ++ return (modifier == DRM_FORMAT_MOD_LINEAR); ++ } ++} ++ + static const struct drm_plane_funcs vc4_plane_funcs = { + .update_plane = vc4_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, +@@ -875,6 +901,7 @@ static const struct drm_plane_funcs vc4_ + .reset = vc4_plane_reset, + .atomic_duplicate_state = vc4_plane_duplicate_state, + .atomic_destroy_state = vc4_plane_destroy_state, ++ .format_mod_supported = vc4_format_mod_supported, + }; + + struct drm_plane *vc4_plane_init(struct drm_device *dev, +@@ -886,6 +913,11 @@ struct drm_plane *vc4_plane_init(struct + u32 num_formats = 0; + int ret = 0; + unsigned i; ++ static const uint64_t modifiers[] = { ++ DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED, ++ DRM_FORMAT_MOD_LINEAR, ++ DRM_FORMAT_MOD_INVALID ++ }; + + vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane), + GFP_KERNEL); +@@ -906,7 +938,7 @@ struct drm_plane *vc4_plane_init(struct + ret = drm_universal_plane_init(dev, plane, 0, + &vc4_plane_funcs, + formats, num_formats, +- NULL, type, NULL); ++ modifiers, type, NULL); + + drm_plane_helper_add(plane, &vc4_plane_helper_funcs); + |