diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2024-02-27 13:14:55 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2024-03-11 15:33:50 +0300 |
| commit | 94567420208600bf39ea90a9677529e3367626d3 (patch) | |
| tree | 3f169fbe37635a2db520deb2502fde6596aa7f29 /drivers/gpu/drm/qxl | |
| parent | b170783a8fa9ef7711a2558fb09a7c667577b48b (diff) | |
| download | linux-94567420208600bf39ea90a9677529e3367626d3.tar.xz | |
drm/qxl: Acquire reservation lock in GEM pin/unpin callbacks
Acquire the reservation lock directly in GEM pin callback. Same for
unpin. Prepares for further changes.
Dma-buf locking semantics require callers to hold the buffer's
reservation lock when invoking the pin and unpin callbacks. Prepare
qxl accordingly by pushing locking out of the implementation. A
follow-up patch will fix locking for all GEM code at once.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> # virtio-gpu
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240227113853.8464-9-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/qxl')
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_prime.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_prime.c b/drivers/gpu/drm/qxl/qxl_prime.c index 9169c26357d3..f2646603e12e 100644 --- a/drivers/gpu/drm/qxl/qxl_prime.c +++ b/drivers/gpu/drm/qxl/qxl_prime.c @@ -31,15 +31,27 @@ int qxl_gem_prime_pin(struct drm_gem_object *obj) { struct qxl_bo *bo = gem_to_qxl_bo(obj); + int r; - return qxl_bo_pin(bo); + r = qxl_bo_reserve(bo); + if (r) + return r; + r = qxl_bo_pin_locked(bo); + qxl_bo_unreserve(bo); + + return r; } void qxl_gem_prime_unpin(struct drm_gem_object *obj) { struct qxl_bo *bo = gem_to_qxl_bo(obj); + int r; - qxl_bo_unpin(bo); + r = qxl_bo_reserve(bo); + if (r) + return; + qxl_bo_unpin_locked(bo); + qxl_bo_unreserve(bo); } struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj) |