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| author |   Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2019-06-25 22:36:18 -0300 |
|---|---|---|
| committer | Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2019-07-12 00:45:49 -0300 |
| commit | e9d85f731de06a35d2ae6cdcf7d0e037c98ef41a (patch) | |
| tree | 5d86403750e3113ee8a76c204090c84aa536b2f5 /drivers/gpu/drm/vkms | |
| parent | drm/kms: Catch mode_object lifetime errors (diff) | |
| download | linux-dev-e9d85f731de06a35d2ae6cdcf7d0e037c98ef41a.tar.xz linux-dev-e9d85f731de06a35d2ae6cdcf7d0e037c98ef41a.zip | |
drm/vkms: Avoid assigning 0 for possible_crtc
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
Diffstat (limited to 'drivers/gpu/drm/vkms')
| -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 cc53ef88a331..966b3d653189 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -127,7 +127,7 @@ static int vkms_modeset_init(struct vkms_device *vkmsdev) dev->mode_config.preferred_depth = 24; dev->mode_config.helper_private = &vkms_mode_config_helpers; - 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 12b4db7ac641..e2d1aa089dec 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 56fb5c2a2315..fb1941a6522c 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -35,7 +35,7 @@ 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; @@ -45,12 +45,12 @@ 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 0fceb6258422..18c630cfc485 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -176,7 +176,7 @@ 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; @@ -198,7 +198,7 @@ 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); |