From 1c482ab3596b8ee4c635926b35ee88ad56ba2f9c Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 17 Oct 2011 11:59:45 +0200 Subject: [PATCH] vmwgfx: Add vblank stubs This fixes kernel panics when running the vbltest from the drm repo. We can't just skip initializing the vblank system since it sets up certain state for us, see: "vmwgfx: Enable use of the vblank system." Signed-off-by: Jakob Bornecrantz Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 ++ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 2 ++ drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 19 +++++++++++++++++++ 3 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index e07dcf40a3ba..b8eb8cdcfb78 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1069,6 +1069,8 @@ static struct drm_driver driver = { .irq_uninstall = vmw_irq_uninstall, .irq_handler = vmw_irq_handler, .get_vblank_counter = vmw_get_vblank_counter, + .enable_vblank = vmw_enable_vblank, + .disable_vblank = vmw_disable_vblank, .reclaim_buffers_locked = NULL, .ioctls = vmw_ioctls, .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls), diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 0e9b2cefaa9d..30589d0aecd9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -618,6 +618,8 @@ bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, uint32_t pitch, uint32_t height); u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc); +int vmw_enable_vblank(struct drm_device *dev, int crtc); +void vmw_disable_vblank(struct drm_device *dev, int crtc); int vmw_kms_present(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 2421d0cd0df9..39b99dbde218 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1459,11 +1459,30 @@ bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size; } + +/** + * Function called by DRM code called with vbl_lock held. + */ u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc) { return 0; } +/** + * Function called by DRM code called with vbl_lock held. + */ +int vmw_enable_vblank(struct drm_device *dev, int crtc) +{ + return -ENOSYS; +} + +/** + * Function called by DRM code called with vbl_lock held. + */ +void vmw_disable_vblank(struct drm_device *dev, int crtc) +{ +} + /* * Small shared kms functions. -- 2.39.5