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| author | Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2019-06-25 22:36:18 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-07 18:58:30 +0200 |
| commit | bdcef6cd4c946cca8706baef4915d5af54d96e82 (patch) | |
| tree | 6b6cf511b96c259be6bc53e36a019910151fdc03 | |
| parent | 29079f2260ff992a02b8ebb8a612c7bdcd27c910 (diff) | |
| download | linux-stable-bdcef6cd4c946cca8706baef4915d5af54d96e82.tar.gz linux-stable-bdcef6cd4c946cca8706baef4915d5af54d96e82.tar.bz2 linux-stable-bdcef6cd4c946cca8706baef4915d5af54d96e82.zip | |
drm/vkms: Avoid assigning 0 for possible_crtc
[ Upstream commit e9d85f731de06a35d2ae6cdcf7d0e037c98ef41a ]
When vkms invoke drm_universal_plane_init(), it sets 0 for
possible_crtcs parameter which means that planes can't be attached to
any CRTC. It currently works due to some safeguard in the drm_crtc file;
however, it is possible to identify the problem by trying to append a
second connector. This patch fixes this issue by modifying
vkms_plane_init() to accept an index parameter which makes the code a
little bit more flexible and avoid set zero to possible_crtcs.
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/d67849c62a8d8ace1a0af455998b588798a4c45f.1561491964.git.rodrigosiqueiramelo@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_drv.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_output.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_plane.c | 4 |
4 files changed, 8 insertions, 8 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index 738dd6206d85..92296bd8f623 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -92,7 +92,7 @@ static int vkms_modeset_init(struct vkms_device *vkmsdev) dev->mode_config.max_height = YRES_MAX; dev->mode_config.preferred_depth = 24; - return vkms_output_init(vkmsdev); + return vkms_output_init(vkmsdev, 0); } static int __init vkms_init(void) diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h index 3c7e06b19efd..a0adcc86079f 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.h +++ b/drivers/gpu/drm/vkms/vkms_drv.h @@ -115,10 +115,10 @@ bool vkms_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe, int *max_error, ktime_t *vblank_time, bool in_vblank_irq); -int vkms_output_init(struct vkms_device *vkmsdev); +int vkms_output_init(struct vkms_device *vkmsdev, int index); struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, - enum drm_plane_type type); + enum drm_plane_type type, int index); /* Gem stuff */ struct drm_gem_object *vkms_gem_create(struct drm_device *dev, diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c index 3b162b25312e..1442b447c707 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -36,7 +36,7 @@ static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = { .get_modes = vkms_conn_get_modes, }; -int vkms_output_init(struct vkms_device *vkmsdev) +int vkms_output_init(struct vkms_device *vkmsdev, int index) { struct vkms_output *output = &vkmsdev->output; struct drm_device *dev = &vkmsdev->drm; @@ -46,12 +46,12 @@ int vkms_output_init(struct vkms_device *vkmsdev) struct drm_plane *primary, *cursor = NULL; int ret; - primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY); + primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index); if (IS_ERR(primary)) return PTR_ERR(primary); if (enable_cursor) { - cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR); + cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index); if (IS_ERR(cursor)) { ret = PTR_ERR(cursor); goto err_cursor; diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 0e67d2d42f0c..20ffc52f9194 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -168,7 +168,7 @@ static const struct drm_plane_helper_funcs vkms_primary_helper_funcs = { }; struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, - enum drm_plane_type type) + enum drm_plane_type type, int index) { struct drm_device *dev = &vkmsdev->drm; const struct drm_plane_helper_funcs *funcs; @@ -190,7 +190,7 @@ struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, funcs = &vkms_primary_helper_funcs; } - ret = drm_universal_plane_init(dev, plane, 0, + ret = drm_universal_plane_init(dev, plane, 1 << index, &vkms_plane_funcs, formats, nformats, NULL, type, NULL); |