1 files changed, 29 insertions, 18 deletions

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index c06af78ab833..94b0819ad50b 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -3,8 +3,6 @@
 /* Copyright 2019 Linaro, Ltd., Rob Herring <robh@kernel.org> */
 /* Copyright 2019 Collabora ltd. */
 
-#include <linux/bitfield.h>
-#include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/pagemap.h>
@@ -172,13 +170,27 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
 {
 	struct panfrost_device *pfdev = dev->dev_private;
 	struct drm_panfrost_submit *args = data;
-	struct drm_syncobj *sync_out;
+	struct drm_syncobj *sync_out = NULL;
 	struct panfrost_job *job;
 	int ret = 0;
 
+	if (!args->jc)
+		return -EINVAL;
+
+	if (args->requirements && args->requirements != PANFROST_JD_REQ_FS)
+		return -EINVAL;
+
+	if (args->out_sync > 0) {
+		sync_out = drm_syncobj_find(file, args->out_sync);
+		if (!sync_out)
+			return -ENODEV;
+	}
+
 	job = kzalloc(sizeof(*job), GFP_KERNEL);
-	if (!job)
-		return -ENOMEM;
+	if (!job) {
+		ret = -ENOMEM;
+		goto fail_out_sync;
+	}
 
 	kref_init(&job->refcount);
 
@@ -190,25 +202,24 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
 
 	ret = panfrost_copy_in_sync(dev, file, args, job);
 	if (ret)
-		goto fail;
+		goto fail_job;
 
 	ret = panfrost_lookup_bos(dev, file, args, job);
 	if (ret)
-		goto fail;
+		goto fail_job;
 
 	ret = panfrost_job_push(job);
 	if (ret)
-		goto fail;
+		goto fail_job;
 
 	/* Update the return sync object for the job */
-	sync_out = drm_syncobj_find(file, args->out_sync);
-	if (sync_out) {
+	if (sync_out)
 		drm_syncobj_replace_fence(sync_out, job->render_done_fence);
-		drm_syncobj_put(sync_out);
-	}
 
-fail:
+fail_job:
 	panfrost_job_put(job);
+fail_out_sync:
+	drm_syncobj_put(sync_out);
 
 	return ret;
 }
@@ -384,16 +395,15 @@ static int panfrost_probe(struct platform_device *pdev)
 
 	err = panfrost_device_init(pfdev);
 	if (err) {
-		dev_err(&pdev->dev, "Fatal error during GPU init\n");
+		if (err != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Fatal error during GPU init\n");
 		goto err_out0;
 	}
 
-	dma_set_mask_and_coherent(pfdev->dev,
-		DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features)));
-
 	err = panfrost_devfreq_init(pfdev);
 	if (err) {
-		dev_err(&pdev->dev, "Fatal error during devfreq init\n");
+		if (err != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Fatal error during devfreq init\n");
 		goto err_out1;
 	}
 
@@ -410,6 +420,7 @@ static int panfrost_probe(struct platform_device *pdev)
 err_out1:
 	panfrost_device_fini(pfdev);
 err_out0:
+	pm_runtime_disable(pfdev->dev);
 	drm_dev_put(ddev);
 	return err;
 }