[PATCH 5/7] drm/panfrost: switch to using drm_exec

[Christian König]

Just a straightforward conversion without any optimization.

Only compile tested for now.

Signed-off-by: Christian König <christian.koenig at amd.com>
Cc: Rob Herring <robh at kernel.org>
Cc: Tomeu Vizoso <tomeu.vizoso at collabora.com>
Cc: Steven Price <steven.price at arm.com>
Cc: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
---
 drivers/gpu/drm/panfrost/Kconfig        |  1 +
 drivers/gpu/drm/panfrost/panfrost_job.c | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/Kconfig b/drivers/gpu/drm/panfrost/Kconfig
index e6403a9d66ad..e86a1a2fd8e1 100644
--- a/drivers/gpu/drm/panfrost/Kconfig
+++ b/drivers/gpu/drm/panfrost/Kconfig
@@ -7,6 +7,7 @@ config DRM_PANFROST
 	depends on !GENERIC_ATOMIC64    # for IOMMU_IO_PGTABLE_LPAE
 	depends on MMU
 	select DRM_SCHED
+	select DRM_EXEC
 	select IOMMU_SUPPORT
 	select IOMMU_IO_PGTABLE_LPAE
 	select DRM_GEM_SHMEM_HELPER
diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c
index dbc597ab46fb..8b9206e910b5 100644
--- a/drivers/gpu/drm/panfrost/panfrost_job.c
+++ b/drivers/gpu/drm/panfrost/panfrost_job.c
@@ -8,6 +8,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/dma-resv.h>
+#include <drm/drm_exec.h>
 #include <drm/gpu_scheduler.h>
 #include <drm/panfrost_drm.h>
 
@@ -275,13 +276,14 @@ static void panfrost_attach_object_fences(struct drm_gem_object **bos,
 int panfrost_job_push(struct panfrost_job *job)
 {
 	struct panfrost_device *pfdev = job->pfdev;
-	struct ww_acquire_ctx acquire_ctx;
+	struct drm_exec exec;
 	int ret = 0;
 
-	ret = drm_gem_lock_reservations(job->bos, job->bo_count,
-					    &acquire_ctx);
+	drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
+	drm_exec_until_all_locked(&exec)
+		ret = drm_exec_prepare_array(&exec, job->bos, job->bo_count, 1);
 	if (ret)
-		return ret;
+		goto unlock;
 
 	mutex_lock(&pfdev->sched_lock);
 	drm_sched_job_arm(&job->base);
@@ -305,7 +307,7 @@ int panfrost_job_push(struct panfrost_job *job)
 				      job->render_done_fence);
 
 unlock:
-	drm_gem_unlock_reservations(job->bos, job->bo_count, &acquire_ctx);
+	drm_exec_fini(&exec);
 
 	return ret;
 }
-- 
2.34.1