diff options
author | Thomas Hellstrom <thellstrom@vmware.com> | 2014-02-27 12:34:51 +0100 |
---|---|---|
committer | Thomas Hellstrom <thellstrom@vmware.com> | 2014-03-28 14:19:02 +0100 |
commit | 294adf7d86226c0e6abeb4475159b03aa315d56f (patch) | |
tree | 82013a33770470723552a04a5893904917281515 /drivers/gpu/drm/vmwgfx/vmwgfx_context.c | |
parent | 4beb6d9fa6a74c189884be4913cfdd24fc8758ac (diff) | |
download | linux-294adf7d86226c0e6abeb4475159b03aa315d56f.tar.bz2 |
drm/vmwgfx: Use a per-device semaphore for reservation protection
Don't use a per-master semaphore (ttm lock) for reservation protection, but
rather a per-device semaphore. This is needed since clients connecting using
render nodes aren't master aware.
The ttm lock used should probably be replaced with a reader-write semaphore
once the function down_xx_interruptible() is available.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_context.c')
-rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_context.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c index 1e80152674b5..701d5207def6 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c @@ -462,7 +462,6 @@ int vmw_context_define_ioctl(struct drm_device *dev, void *data, struct vmw_resource *tmp; struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct vmw_master *vmaster = vmw_master(file_priv->master); int ret; @@ -474,7 +473,7 @@ int vmw_context_define_ioctl(struct drm_device *dev, void *data, if (unlikely(vmw_user_context_size == 0)) vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; - ret = ttm_read_lock(&vmaster->lock, true); + ret = ttm_read_lock(&dev_priv->reservation_sem, true); if (unlikely(ret != 0)) return ret; @@ -521,7 +520,7 @@ int vmw_context_define_ioctl(struct drm_device *dev, void *data, out_err: vmw_resource_unreference(&res); out_unlock: - ttm_read_unlock(&vmaster->lock); + ttm_read_unlock(&dev_priv->reservation_sem); return ret; } |