From: Mark Yacoub <markyacoub@chromium.org> To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org Cc: seanpaul@chromium.org, Rodrigo.Siqueira@amd.com, anson.jacob@amd.com, Mark Yacoub <markyacoub@google.com>, Mark Yacoub <markyacoub@chromium.org>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, Matthias Brugger <matthias.bgg@gmail.com>, linux-mediatek@lists.infradead.org Subject: [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate. Date: Wed, 29 Sep 2021 15:39:25 -0400 [thread overview] Message-ID: <20210929194012.3433306-1-markyacoub@chromium.org> (raw) From: Mark Yacoub <markyacoub@google.com> [Why] 1. drm_atomic_helper_check doesn't check for the LUT sizes of either Gamma or Degamma props in the new CRTC state, allowing any invalid size to be passed on. 2. Each driver has its own LUT size, which could also be different for legacy users. [How] 1. Create |degamma_lut_size| and |gamma_lut_size| to save the LUT sizes assigned by the driver when it's initializing its color and CTM management. 2. Create drm_atomic_helper_check_crtc which is called by drm_atomic_helper_check to check the LUT sizes saved in drm_crtc that they match the sizes in the new CRTC state. Fixes: igt@kms_color@pipe-A-invalid-gamma-lut-sizes on MTK Tested on Zork(amdgpu) and Jacuzzi(mediatek) Signed-off-by: Mark Yacoub<markyacoub@chromium.org> --- drivers/gpu/drm/drm_atomic_helper.c | 56 +++++++++++++++++++++++++++++ drivers/gpu/drm/drm_color_mgmt.c | 2 ++ include/drm/drm_atomic_helper.h | 1 + include/drm/drm_crtc.h | 11 ++++++ 4 files changed, 70 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 2c0c6ec928200..265b9747250d1 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -930,6 +930,58 @@ drm_atomic_helper_check_planes(struct drm_device *dev, } EXPORT_SYMBOL(drm_atomic_helper_check_planes); +/** + * drm_atomic_helper_check_planes - validate state object for CRTC changes + * @state: the driver state object + * + * Check the CRTC state object such as the Gamma/Degamma LUT sizes if the new + * state holds them. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_atomic_helper_check_crtc(struct drm_atomic_state *state) +{ + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + int i; + + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { + if (new_crtc_state->gamma_lut) { + uint64_t supported_lut_size = crtc->gamma_lut_size; + uint32_t supported_legacy_lut_size = crtc->gamma_size; + uint32_t new_state_lut_size = + drm_color_lut_size(new_crtc_state->gamma_lut); + + if (new_state_lut_size != supported_lut_size && + new_state_lut_size != supported_legacy_lut_size) { + DRM_DEBUG_DRIVER( + "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", + supported_lut_size, + supported_legacy_lut_size, + new_state_lut_size); + return -EINVAL; + } + } + + if (new_crtc_state->degamma_lut) { + uint32_t new_state_lut_size = + drm_color_lut_size(new_crtc_state->degamma_lut); + uint64_t supported_lut_size = crtc->degamma_lut_size; + + if (new_state_lut_size != supported_lut_size) { + DRM_DEBUG_DRIVER( + "Invalid Degamma LUT size. Should be %u but got %u.\n", + supported_lut_size, new_state_lut_size); + return -EINVAL; + } + } + } + + return 0; +} +EXPORT_SYMBOL(drm_atomic_helper_check_crtc); + /** * drm_atomic_helper_check - validate state object * @dev: DRM device @@ -975,6 +1027,10 @@ int drm_atomic_helper_check(struct drm_device *dev, if (ret) return ret; + ret = drm_atomic_helper_check_crtc(state); + if (ret) + return ret; + if (state->legacy_cursor_update) state->async_update = !drm_atomic_helper_async_check(dev, state); diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index bb14f488c8f6c..72a1b628e7cdd 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -166,6 +166,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, struct drm_mode_config *config = &dev->mode_config; if (degamma_lut_size) { + crtc->degamma_lut_size = degamma_lut_size; drm_object_attach_property(&crtc->base, config->degamma_lut_property, 0); drm_object_attach_property(&crtc->base, @@ -178,6 +179,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, config->ctm_property, 0); if (gamma_lut_size) { + crtc->gamma_lut_size = gamma_lut_size; drm_object_attach_property(&crtc->base, config->gamma_lut_property, 0); drm_object_attach_property(&crtc->base, diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 4045e2507e11c..3eda13622ca1e 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -38,6 +38,7 @@ struct drm_atomic_state; struct drm_private_obj; struct drm_private_state; +int drm_atomic_helper_check_crtc(struct drm_atomic_state *state); int drm_atomic_helper_check_modeset(struct drm_device *dev, struct drm_atomic_state *state); int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 13eeba2a750af..c602be2cafca9 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1072,6 +1072,17 @@ struct drm_crtc { /** @funcs: CRTC control functions */ const struct drm_crtc_funcs *funcs; + /** + * @degamma_lut_size: Size of degamma LUT. + */ + uint32_t degamma_lut_size; + + /** + * @gamma_lut_size: Size of Gamma LUT. Not used by legacy userspace such as + * X, which doesn't support large lut sizes. + */ + uint32_t gamma_lut_size; + /** * @gamma_size: Size of legacy gamma ramp reported to userspace. Set up * by calling drm_mode_crtc_set_gamma_size(). -- 2.33.0.685.g46640cef36-goog _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Mark Yacoub <markyacoub@chromium.org> To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org Cc: seanpaul@chromium.org, Rodrigo.Siqueira@amd.com, anson.jacob@amd.com, Mark Yacoub <markyacoub@google.com>, Mark Yacoub <markyacoub@chromium.org>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, Matthias Brugger <matthias.bgg@gmail.com>, linux-mediatek@lists.infradead.org Subject: [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate. Date: Wed, 29 Sep 2021 15:39:25 -0400 [thread overview] Message-ID: <20210929194012.3433306-1-markyacoub@chromium.org> (raw) From: Mark Yacoub <markyacoub@google.com> [Why] 1. drm_atomic_helper_check doesn't check for the LUT sizes of either Gamma or Degamma props in the new CRTC state, allowing any invalid size to be passed on. 2. Each driver has its own LUT size, which could also be different for legacy users. [How] 1. Create |degamma_lut_size| and |gamma_lut_size| to save the LUT sizes assigned by the driver when it's initializing its color and CTM management. 2. Create drm_atomic_helper_check_crtc which is called by drm_atomic_helper_check to check the LUT sizes saved in drm_crtc that they match the sizes in the new CRTC state. Fixes: igt@kms_color@pipe-A-invalid-gamma-lut-sizes on MTK Tested on Zork(amdgpu) and Jacuzzi(mediatek) Signed-off-by: Mark Yacoub<markyacoub@chromium.org> --- drivers/gpu/drm/drm_atomic_helper.c | 56 +++++++++++++++++++++++++++++ drivers/gpu/drm/drm_color_mgmt.c | 2 ++ include/drm/drm_atomic_helper.h | 1 + include/drm/drm_crtc.h | 11 ++++++ 4 files changed, 70 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 2c0c6ec928200..265b9747250d1 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -930,6 +930,58 @@ drm_atomic_helper_check_planes(struct drm_device *dev, } EXPORT_SYMBOL(drm_atomic_helper_check_planes); +/** + * drm_atomic_helper_check_planes - validate state object for CRTC changes + * @state: the driver state object + * + * Check the CRTC state object such as the Gamma/Degamma LUT sizes if the new + * state holds them. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_atomic_helper_check_crtc(struct drm_atomic_state *state) +{ + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + int i; + + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { + if (new_crtc_state->gamma_lut) { + uint64_t supported_lut_size = crtc->gamma_lut_size; + uint32_t supported_legacy_lut_size = crtc->gamma_size; + uint32_t new_state_lut_size = + drm_color_lut_size(new_crtc_state->gamma_lut); + + if (new_state_lut_size != supported_lut_size && + new_state_lut_size != supported_legacy_lut_size) { + DRM_DEBUG_DRIVER( + "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", + supported_lut_size, + supported_legacy_lut_size, + new_state_lut_size); + return -EINVAL; + } + } + + if (new_crtc_state->degamma_lut) { + uint32_t new_state_lut_size = + drm_color_lut_size(new_crtc_state->degamma_lut); + uint64_t supported_lut_size = crtc->degamma_lut_size; + + if (new_state_lut_size != supported_lut_size) { + DRM_DEBUG_DRIVER( + "Invalid Degamma LUT size. Should be %u but got %u.\n", + supported_lut_size, new_state_lut_size); + return -EINVAL; + } + } + } + + return 0; +} +EXPORT_SYMBOL(drm_atomic_helper_check_crtc); + /** * drm_atomic_helper_check - validate state object * @dev: DRM device @@ -975,6 +1027,10 @@ int drm_atomic_helper_check(struct drm_device *dev, if (ret) return ret; + ret = drm_atomic_helper_check_crtc(state); + if (ret) + return ret; + if (state->legacy_cursor_update) state->async_update = !drm_atomic_helper_async_check(dev, state); diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index bb14f488c8f6c..72a1b628e7cdd 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -166,6 +166,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, struct drm_mode_config *config = &dev->mode_config; if (degamma_lut_size) { + crtc->degamma_lut_size = degamma_lut_size; drm_object_attach_property(&crtc->base, config->degamma_lut_property, 0); drm_object_attach_property(&crtc->base, @@ -178,6 +179,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, config->ctm_property, 0); if (gamma_lut_size) { + crtc->gamma_lut_size = gamma_lut_size; drm_object_attach_property(&crtc->base, config->gamma_lut_property, 0); drm_object_attach_property(&crtc->base, diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 4045e2507e11c..3eda13622ca1e 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -38,6 +38,7 @@ struct drm_atomic_state; struct drm_private_obj; struct drm_private_state; +int drm_atomic_helper_check_crtc(struct drm_atomic_state *state); int drm_atomic_helper_check_modeset(struct drm_device *dev, struct drm_atomic_state *state); int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 13eeba2a750af..c602be2cafca9 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1072,6 +1072,17 @@ struct drm_crtc { /** @funcs: CRTC control functions */ const struct drm_crtc_funcs *funcs; + /** + * @degamma_lut_size: Size of degamma LUT. + */ + uint32_t degamma_lut_size; + + /** + * @gamma_lut_size: Size of Gamma LUT. Not used by legacy userspace such as + * X, which doesn't support large lut sizes. + */ + uint32_t gamma_lut_size; + /** * @gamma_size: Size of legacy gamma ramp reported to userspace. Set up * by calling drm_mode_crtc_set_gamma_size(). -- 2.33.0.685.g46640cef36-goog
next reply other threads:[~2021-09-29 19:41 UTC|newest] Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-29 19:39 Mark Yacoub [this message] 2021-09-29 19:39 ` [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate Mark Yacoub 2021-09-29 19:39 ` [PATCH 2/2] amd/amdgpu_dm: Verify Gamma and Degamma LUT sizes using DRM Core check Mark Yacoub 2021-10-01 19:56 ` Sean Paul 2021-10-04 14:12 ` Harry Wentland 2021-10-01 20:34 ` [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate Sean Paul 2021-10-01 20:34 ` Sean Paul 2021-10-02 14:28 ` Sean Paul 2021-10-02 14:28 ` Sean Paul 2021-10-13 18:18 ` Mark Yacoub 2021-10-13 18:18 ` Mark Yacoub 2021-10-13 18:12 ` Mark Yacoub 2021-10-13 18:12 ` Mark Yacoub 2021-10-13 18:12 ` [Intel-gfx] " Mark Yacoub 2021-10-13 18:12 ` Mark Yacoub 2021-10-13 18:12 ` [PATCH 2/2] amd/amdgpu_dm: Verify Gamma and Degamma LUT sizes using DRM Core check Mark Yacoub 2021-10-13 18:12 ` [Intel-gfx] " Mark Yacoub 2021-10-14 23:42 ` Sean Paul 2021-10-14 23:42 ` [Intel-gfx] " Sean Paul 2021-10-26 1:26 ` [Intel-gfx] [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate Sean Paul 2021-10-26 1:26 ` Sean Paul 2021-10-26 1:26 ` Sean Paul 2021-10-26 19:25 ` Mark Yacoub 2021-10-26 19:25 ` Mark Yacoub 2021-10-26 19:25 ` Mark Yacoub 2021-10-26 12:02 ` Paul Menzel 2021-10-26 12:02 ` [Intel-gfx] " Paul Menzel 2021-10-26 12:02 ` Paul Menzel 2021-10-26 12:02 ` Paul Menzel 2021-10-26 19:24 ` Mark Yacoub 2021-10-26 19:24 ` Mark Yacoub 2021-10-26 19:24 ` [Intel-gfx] " Mark Yacoub 2021-10-26 19:24 ` Mark Yacoub 2021-10-26 19:26 ` [Intel-gfx] " Mark Yacoub 2021-10-26 19:26 ` Mark Yacoub 2021-10-26 19:26 ` Mark Yacoub 2021-10-26 19:26 ` Mark Yacoub
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