From: Mark Yacoub <markyacoub@chromium.org> To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: alexander.deucher@amd.com, Mark Yacoub <markyacoub@chromium.org>, seanpaul@chromium.org, christian.koenig@amd.com, Mark Yacoub <markyacoub@google.com> Subject: [PATCH] drm/amdgpu: Verify bo size can fit framebuffer size on init. Date: Thu, 4 Mar 2021 14:15:34 -0500 [thread overview] Message-ID: <20210304191534.1542241-1-markyacoub@chromium.org> (raw) From: Mark Yacoub <markyacoub@google.com> To initialize the framebuffer, use drm_gem_fb_init_with_funcs which verifies that the BO size can fit the FB size by calculating the minimum expected size of each plane. The bug was caught using igt-gpu-tools test: kms_addfb_basic.too-high and kms_addfb_basic.bo-too-small Tested on ChromeOS Zork by turning on the display and running a YT video. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Mark Yacoub <markyacoub@chromium.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 66 ++++++++++++++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 4 +- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 8 +++ 3 files changed, 62 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index 48cb33e5b3826..554038e5bbf6a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -870,18 +870,59 @@ static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb return r; } -int amdgpu_display_framebuffer_init(struct drm_device *dev, - struct amdgpu_framebuffer *rfb, - const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object *obj) +int amdgpu_display_gem_fb_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) { - int ret, i; + int ret; rfb->base.obj[0] = obj; drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); if (ret) - goto fail; + goto err; + + ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); + if (ret) + goto err; + + return 0; +err: + drm_err(dev, "Failed to init gem fb: %d\n", ret); + rfb->base.obj[0] = NULL; + return ret; +} + +int amdgpu_display_gem_fb_verify_and_init( + struct drm_device *dev, struct amdgpu_framebuffer *rfb, + struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) +{ + int ret; + rfb->base.obj[0] = obj; + // Verify that bo size can fit the fb size. + ret = drm_gem_fb_init_with_funcs(dev, &rfb->base, file_priv, mode_cmd, + &amdgpu_fb_funcs); + if (ret) + goto err; + ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); + if (ret) + goto err; + + return 0; +err: + drm_err(dev, "Failed to verify and init gem fb: %d\n", ret); + rfb->base.obj[0] = NULL; + return ret; +} + +int amdgpu_display_framebuffer_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) +{ + int ret, i; /* * This needs to happen before modifier conversion as that might change * the number of planes. @@ -891,13 +932,13 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n", i, mode_cmd->handles[0], mode_cmd->handles[i]); ret = -EINVAL; - goto fail; + return ret; } } ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface); if (ret) - goto fail; + return ret; if (dev->mode_config.allow_fb_modifiers && !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { @@ -905,7 +946,7 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, if (ret) { drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier", rfb->tiling_flags); - goto fail; + return ret; } } @@ -915,10 +956,6 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, } return 0; - -fail: - rfb->base.obj[0] = NULL; - return ret; } struct drm_framebuffer * @@ -953,7 +990,8 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev, return ERR_PTR(-ENOMEM); } - ret = amdgpu_display_framebuffer_init(dev, amdgpu_fb, mode_cmd, obj); + ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv, + mode_cmd, obj); if (ret) { kfree(amdgpu_fb); drm_gem_object_put(obj); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 0bf7d36c6686d..22157bd7017c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -232,8 +232,8 @@ static int amdgpufb_create(struct drm_fb_helper *helper, goto out; } - ret = amdgpu_display_framebuffer_init(adev_to_drm(adev), &rfbdev->rfb, - &mode_cmd, gobj); + ret = amdgpu_display_gem_fb_init(adev_to_drm(adev), &rfbdev->rfb, + &mode_cmd, gobj); if (ret) { DRM_ERROR("failed to initialize framebuffer %d\n", ret); goto out; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index 319cb19e1b99f..cb0b581bbce7b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -602,6 +602,14 @@ int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, int *hpos, ktime_t *stime, ktime_t *etime, const struct drm_display_mode *mode); +int amdgpu_display_gem_fb_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); +int amdgpu_display_gem_fb_verify_and_init( + struct drm_device *dev, struct amdgpu_framebuffer *rfb, + struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); int amdgpu_display_framebuffer_init(struct drm_device *dev, struct amdgpu_framebuffer *rfb, const struct drm_mode_fb_cmd2 *mode_cmd, -- 2.30.1.766.gb4fecdf3b7-goog _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Mark Yacoub <markyacoub@chromium.org> To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: alexander.deucher@amd.com, Mark Yacoub <markyacoub@chromium.org>, seanpaul@chromium.org, christian.koenig@amd.com, Mark Yacoub <markyacoub@google.com> Subject: [PATCH] drm/amdgpu: Verify bo size can fit framebuffer size on init. Date: Thu, 4 Mar 2021 14:15:34 -0500 [thread overview] Message-ID: <20210304191534.1542241-1-markyacoub@chromium.org> (raw) From: Mark Yacoub <markyacoub@google.com> To initialize the framebuffer, use drm_gem_fb_init_with_funcs which verifies that the BO size can fit the FB size by calculating the minimum expected size of each plane. The bug was caught using igt-gpu-tools test: kms_addfb_basic.too-high and kms_addfb_basic.bo-too-small Tested on ChromeOS Zork by turning on the display and running a YT video. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Mark Yacoub <markyacoub@chromium.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 66 ++++++++++++++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 4 +- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 8 +++ 3 files changed, 62 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index 48cb33e5b3826..554038e5bbf6a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -870,18 +870,59 @@ static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb return r; } -int amdgpu_display_framebuffer_init(struct drm_device *dev, - struct amdgpu_framebuffer *rfb, - const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object *obj) +int amdgpu_display_gem_fb_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) { - int ret, i; + int ret; rfb->base.obj[0] = obj; drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); if (ret) - goto fail; + goto err; + + ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); + if (ret) + goto err; + + return 0; +err: + drm_err(dev, "Failed to init gem fb: %d\n", ret); + rfb->base.obj[0] = NULL; + return ret; +} + +int amdgpu_display_gem_fb_verify_and_init( + struct drm_device *dev, struct amdgpu_framebuffer *rfb, + struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) +{ + int ret; + rfb->base.obj[0] = obj; + // Verify that bo size can fit the fb size. + ret = drm_gem_fb_init_with_funcs(dev, &rfb->base, file_priv, mode_cmd, + &amdgpu_fb_funcs); + if (ret) + goto err; + ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); + if (ret) + goto err; + + return 0; +err: + drm_err(dev, "Failed to verify and init gem fb: %d\n", ret); + rfb->base.obj[0] = NULL; + return ret; +} + +int amdgpu_display_framebuffer_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj) +{ + int ret, i; /* * This needs to happen before modifier conversion as that might change * the number of planes. @@ -891,13 +932,13 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n", i, mode_cmd->handles[0], mode_cmd->handles[i]); ret = -EINVAL; - goto fail; + return ret; } } ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface); if (ret) - goto fail; + return ret; if (dev->mode_config.allow_fb_modifiers && !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { @@ -905,7 +946,7 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, if (ret) { drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier", rfb->tiling_flags); - goto fail; + return ret; } } @@ -915,10 +956,6 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, } return 0; - -fail: - rfb->base.obj[0] = NULL; - return ret; } struct drm_framebuffer * @@ -953,7 +990,8 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev, return ERR_PTR(-ENOMEM); } - ret = amdgpu_display_framebuffer_init(dev, amdgpu_fb, mode_cmd, obj); + ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv, + mode_cmd, obj); if (ret) { kfree(amdgpu_fb); drm_gem_object_put(obj); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 0bf7d36c6686d..22157bd7017c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -232,8 +232,8 @@ static int amdgpufb_create(struct drm_fb_helper *helper, goto out; } - ret = amdgpu_display_framebuffer_init(adev_to_drm(adev), &rfbdev->rfb, - &mode_cmd, gobj); + ret = amdgpu_display_gem_fb_init(adev_to_drm(adev), &rfbdev->rfb, + &mode_cmd, gobj); if (ret) { DRM_ERROR("failed to initialize framebuffer %d\n", ret); goto out; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index 319cb19e1b99f..cb0b581bbce7b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -602,6 +602,14 @@ int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, int *hpos, ktime_t *stime, ktime_t *etime, const struct drm_display_mode *mode); +int amdgpu_display_gem_fb_init(struct drm_device *dev, + struct amdgpu_framebuffer *rfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); +int amdgpu_display_gem_fb_verify_and_init( + struct drm_device *dev, struct amdgpu_framebuffer *rfb, + struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); int amdgpu_display_framebuffer_init(struct drm_device *dev, struct amdgpu_framebuffer *rfb, const struct drm_mode_fb_cmd2 *mode_cmd, -- 2.30.1.766.gb4fecdf3b7-goog _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next reply other threads:[~2021-03-04 19:15 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-04 19:15 Mark Yacoub [this message] 2021-03-04 19:15 ` [PATCH] drm/amdgpu: Verify bo size can fit framebuffer size on init Mark Yacoub 2021-03-08 21:20 ` Alex Deucher 2021-03-08 21:20 ` Alex Deucher
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210304191534.1542241-1-markyacoub@chromium.org \ --to=markyacoub@chromium.org \ --cc=alexander.deucher@amd.com \ --cc=amd-gfx@lists.freedesktop.org \ --cc=christian.koenig@amd.com \ --cc=dri-devel@lists.freedesktop.org \ --cc=markyacoub@google.com \ --cc=seanpaul@chromium.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.