The reclaim_buffers function of the savage driver actually wants to run with the hw_lock held - at least there are printks in the call-chain to that effect. But the drm core only calls reclaim_buffers as used by savage _after_ forcefully dropping the hwlock (in case it's still hold by the closing fd).
So do the same idlelock dance as for the other dma drivers and hope that papers over any issues.
v2: Don't let the idlelock linger around.
Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Tested-by: Tormod Volden debian.tormod@gmail.com --- drivers/gpu/drm/savage/savage_bci.c | 9 +++++++-- drivers/gpu/drm/savage/savage_drv.c | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c index 6eb507a..1efbb90 100644 --- a/drivers/gpu/drm/savage/savage_bci.c +++ b/drivers/gpu/drm/savage/savage_bci.c @@ -1050,6 +1050,7 @@ void savage_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv) { struct drm_device_dma *dma = dev->dma; drm_savage_private_t *dev_priv = dev->dev_private; + int release_idlelock = 0; int i;
if (!dma) @@ -1059,7 +1060,10 @@ void savage_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv) if (!dma->buflist) return;
- /*i830_flush_queue(dev); */ + if (file_priv->master && file_priv->master->lock.hw_lock) { + drm_idlelock_take(&file_priv->master->lock); + release_idlelock = 1; + }
for (i = 0; i < dma->buf_count; i++) { struct drm_buf *buf = dma->buflist[i]; @@ -1075,7 +1079,8 @@ void savage_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv) } }
- drm_core_reclaim_buffers(dev, file_priv); + if (release_idlelock) + drm_idlelock_release(&file_priv->master->lock); }
struct drm_ioctl_desc savage_ioctls[] = { diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c index 89afe0b..d31d4cc 100644 --- a/drivers/gpu/drm/savage/savage_drv.c +++ b/drivers/gpu/drm/savage/savage_drv.c @@ -52,9 +52,9 @@ static struct drm_driver driver = { .dev_priv_size = sizeof(drm_savage_buf_priv_t), .load = savage_driver_load, .firstopen = savage_driver_firstopen, + .preclose = savage_reclaim_buffers, .lastclose = savage_driver_lastclose, .unload = savage_driver_unload, - .reclaim_buffers = savage_reclaim_buffers, .ioctls = savage_ioctls, .dma_ioctl = savage_bci_buffers, .fops = &savage_driver_fops,