Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.12 097/196] drm/etnaviv: Expose our reservation object when exporting a dmabuf. | Date | Tue, 25 Jul 2017 12:21:36 -0700 |
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4.12-stable review patch. If anyone has any objections, please let me know.
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From: Eric Anholt <eric@anholt.net>
commit 8555137e26618490cbeb12c243818539875d12f4 upstream.
Without this, polling on the dma-buf (and presumably other devices synchronizing against our rendering) would return immediately, even while the BO was busy.
Signed-off-by: Eric Anholt <eric@anholt.net> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Russell King <linux+etnaviv@armlinux.org.uk> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: etnaviv@lists.freedesktop.org Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 1 + drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 + drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 7 +++++++ 3 files changed, 9 insertions(+)
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -495,6 +495,7 @@ static struct drm_driver etnaviv_drm_dri .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_export = drm_gem_prime_export, .gem_prime_import = drm_gem_prime_import, + .gem_prime_res_obj = etnaviv_gem_prime_res_obj, .gem_prime_pin = etnaviv_gem_prime_pin, .gem_prime_unpin = etnaviv_gem_prime_unpin, .gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table, --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -80,6 +80,7 @@ void *etnaviv_gem_prime_vmap(struct drm_ void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); int etnaviv_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj); struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg); int etnaviv_gem_prime_pin(struct drm_gem_object *obj); --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c @@ -150,3 +150,10 @@ fail: return ERR_PTR(ret); } + +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj) +{ + struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj); + + return etnaviv_obj->resv; +}
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