[PATCH 3/7] drm/lima: switch to using drm_exec

["Christian König" <ckoenig.leichtzumerken@xxxxxxxxx>]

Just a straightforward conversion without any optimization.

Only compile tested for now.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Cc: Qiang Yu <yuq825@xxxxxxxxx>
Cc: lima@xxxxxxxxxxxxxxxxxxxxx
---
 drivers/gpu/drm/lima/Kconfig    |  1 +
 drivers/gpu/drm/lima/lima_gem.c | 17 +++++++++--------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/lima/Kconfig b/drivers/gpu/drm/lima/Kconfig
index fa1d4f5df31e..1d2871d9ddd2 100644
--- a/drivers/gpu/drm/lima/Kconfig
+++ b/drivers/gpu/drm/lima/Kconfig
@@ -9,6 +9,7 @@ config DRM_LIMA
        depends on COMMON_CLK
        depends on OF
        select DRM_SCHED
+       select DRM_EXEC
        select DRM_GEM_SHMEM_HELPER
        select PM_DEVFREQ
        select DEVFREQ_GOV_SIMPLE_ONDEMAND
diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index 4f9736e5f929..d4688d19465b 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -8,6 +8,7 @@
 #include <linux/shmem_fs.h>
 #include <linux/dma-mapping.h>
 
+#include <drm/drm_exec.h>
 #include <drm/drm_file.h>
 #include <drm/drm_syncobj.h>
 #include <drm/drm_utils.h>
@@ -292,7 +293,7 @@ static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
 int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
 {
 	int i, err = 0;
-	struct ww_acquire_ctx ctx;
+	struct drm_exec exec;
 	struct lima_drm_priv *priv = to_lima_drm_priv(file);
 	struct lima_vm *vm = priv->vm;
 	struct drm_syncobj *out_sync = NULL;
@@ -329,8 +330,11 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
 		bos[i] = bo;
 	}
 
-	err = drm_gem_lock_reservations((struct drm_gem_object **)bos,
-					submit->nr_bos, &ctx);
+	drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
+	drm_exec_until_all_locked(&exec)
+		err = drm_exec_prepare_array(&exec,
+					     (struct drm_gem_object **)bos,
+					     submit->nr_bos, 0);
 	if (err)
 		goto err_out0;
 
@@ -360,9 +364,7 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
 				   submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE ?
 				   DMA_RESV_USAGE_WRITE : DMA_RESV_USAGE_READ);
 	}
-
-	drm_gem_unlock_reservations((struct drm_gem_object **)bos,
-				    submit->nr_bos, &ctx);
+	drm_exec_fini(&exec);
 
 	for (i = 0; i < submit->nr_bos; i++)
 		drm_gem_object_put(&bos[i]->base.base);
@@ -379,8 +381,7 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
 err_out2:
 	lima_sched_task_fini(submit->task);
 err_out1:
-	drm_gem_unlock_reservations((struct drm_gem_object **)bos,
-				    submit->nr_bos, &ctx);
+	drm_exec_fini(&exec);
 err_out0:
 	for (i = 0; i < submit->nr_bos; i++) {
 		if (!bos[i])
-- 
2.34.1