bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 164 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0315-drm-v3d-clean-caches-at-the-end-of-render-jobs-on-re.patch b/target/linux/bcm27xx/patches-5.4/950-0315-drm-v3d-clean-caches-at-the-end-of-render-jobs-on-re.patch
deleted file mode 100644
index 961c0cc92b..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0315-drm-v3d-clean-caches-at-the-end-of-render-jobs-on-re.patch
+++ /dev/null
@@ -1,164 +0,0 @@
-From 141da39c2ce8dbf77773c54182244c14d96b301d Mon Sep 17 00:00:00 2001
-From: Iago Toral Quiroga <itoral@igalia.com>
-Date: Tue, 3 Sep 2019 08:45:24 +0200
-Subject: [PATCH] drm/v3d: clean caches at the end of render jobs on
- request from user space
-
-Extends the user space ioctl for CL submissions so it can include a request
-to flush the cache once the CL execution has completed. Fixes memory
-write violation messages reported by the kernel in workloads involving
-shader memory writes (SSBOs, shader images, scratch, etc) which sometimes
-also lead to GPU resets during Piglit and CTS workloads.
-
-v2: if v3d_job_init() fails we need to kfree() the job instead of
-    v3d_job_put() it (Eric Anholt).
-
-v3 (Eric Anholt):
-  - Drop _FLAG suffix from the new flag name.
-  - Add a new param so userspace can tell whether cache flushing is
-    implemented in the kernel.
-
-Signed-off-by: Iago Toral Quiroga <itoral@igalia.com>
----
- drivers/gpu/drm/v3d/v3d_drv.c |  3 +++
- drivers/gpu/drm/v3d/v3d_gem.c | 48 ++++++++++++++++++++++++++++++-----
- include/uapi/drm/v3d_drm.h    |  6 +++--
- 3 files changed, 49 insertions(+), 8 deletions(-)
-
---- a/drivers/gpu/drm/v3d/v3d_drv.c
-+++ b/drivers/gpu/drm/v3d/v3d_drv.c
-@@ -120,6 +120,9 @@ static int v3d_get_param_ioctl(struct dr
- 	case DRM_V3D_PARAM_SUPPORTS_CSD:
- 		args->value = v3d_has_csd(v3d);
- 		return 0;
-+	case DRM_V3D_PARAM_SUPPORTS_CACHE_FLUSH:
-+		args->value = 1;
-+		return 0;
- 	default:
- 		DRM_DEBUG("Unknown parameter %d\n", args->param);
- 		return -EINVAL;
---- a/drivers/gpu/drm/v3d/v3d_gem.c
-+++ b/drivers/gpu/drm/v3d/v3d_gem.c
-@@ -565,13 +565,16 @@ v3d_submit_cl_ioctl(struct drm_device *d
- 	struct drm_v3d_submit_cl *args = data;
- 	struct v3d_bin_job *bin = NULL;
- 	struct v3d_render_job *render;
-+	struct v3d_job *clean_job = NULL;
-+	struct v3d_job *last_job;
- 	struct ww_acquire_ctx acquire_ctx;
- 	int ret = 0;
- 
- 	trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end);
- 
--	if (args->pad != 0) {
--		DRM_INFO("pad must be zero: %d\n", args->pad);
-+	if (args->flags != 0 &&
-+	    args->flags != DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
-+		DRM_INFO("invalid flags: %d\n", args->flags);
- 		return -EINVAL;
- 	}
- 
-@@ -613,12 +616,31 @@ v3d_submit_cl_ioctl(struct drm_device *d
- 		bin->render = render;
- 	}
- 
--	ret = v3d_lookup_bos(dev, file_priv, &render->base,
-+	if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
-+		clean_job = kcalloc(1, sizeof(*clean_job), GFP_KERNEL);
-+		if (!clean_job) {
-+			ret = -ENOMEM;
-+			goto fail;
-+		}
-+
-+		ret = v3d_job_init(v3d, file_priv, clean_job, v3d_job_free, 0);
-+		if (ret) {
-+			kfree(clean_job);
-+			clean_job = NULL;
-+			goto fail;
-+		}
-+
-+		last_job = clean_job;
-+	} else {
-+		last_job = &render->base;
-+	}
-+
-+	ret = v3d_lookup_bos(dev, file_priv, last_job,
- 			     args->bo_handles, args->bo_handle_count);
- 	if (ret)
- 		goto fail;
- 
--	ret = v3d_lock_bo_reservations(&render->base, &acquire_ctx);
-+	ret = v3d_lock_bo_reservations(last_job, &acquire_ctx);
- 	if (ret)
- 		goto fail;
- 
-@@ -637,17 +659,29 @@ v3d_submit_cl_ioctl(struct drm_device *d
- 	ret = v3d_push_job(v3d_priv, &render->base, V3D_RENDER);
- 	if (ret)
- 		goto fail_unreserve;
-+
-+	if (clean_job) {
-+		ret = drm_gem_fence_array_add(&clean_job->deps,
-+					      dma_fence_get(render->base.done_fence));
-+		if (ret)
-+			goto fail_unreserve;
-+		ret = v3d_push_job(v3d_priv, clean_job, V3D_CACHE_CLEAN);
-+		if (ret)
-+			goto fail_unreserve;
-+	}
- 	mutex_unlock(&v3d->sched_lock);
- 
- 	v3d_attach_fences_and_unlock_reservation(file_priv,
--						 &render->base,
-+						 last_job,
- 						 &acquire_ctx,
- 						 args->out_sync,
--						 render->base.done_fence);
-+						 last_job->done_fence);
- 
- 	if (bin)
- 		v3d_job_put(&bin->base);
- 	v3d_job_put(&render->base);
-+	if (clean_job)
-+		v3d_job_put(clean_job);
- 
- 	return 0;
- 
-@@ -659,6 +693,8 @@ fail:
- 	if (bin)
- 		v3d_job_put(&bin->base);
- 	v3d_job_put(&render->base);
-+	if (clean_job)
-+		v3d_job_put(clean_job);
- 
- 	return ret;
- }
---- a/include/uapi/drm/v3d_drm.h
-+++ b/include/uapi/drm/v3d_drm.h
-@@ -48,6 +48,8 @@ extern "C" {
- #define DRM_IOCTL_V3D_SUBMIT_TFU          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_TFU, struct drm_v3d_submit_tfu)
- #define DRM_IOCTL_V3D_SUBMIT_CSD          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CSD, struct drm_v3d_submit_csd)
- 
-+#define DRM_V3D_SUBMIT_CL_FLUSH_CACHE             0x01
-+
- /**
-  * struct drm_v3d_submit_cl - ioctl argument for submitting commands to the 3D
-  * engine.
-@@ -124,8 +126,7 @@ struct drm_v3d_submit_cl {
- 	/* Number of BO handles passed in (size is that times 4). */
- 	__u32 bo_handle_count;
- 
--	/* Pad, must be zero-filled. */
--	__u32 pad;
-+	__u32 flags;
- };
- 
- /**
-@@ -193,6 +194,7 @@ enum drm_v3d_param {
- 	DRM_V3D_PARAM_V3D_CORE0_IDENT2,
- 	DRM_V3D_PARAM_SUPPORTS_TFU,
- 	DRM_V3D_PARAM_SUPPORTS_CSD,
-+	DRM_V3D_PARAM_SUPPORTS_CACHE_FLUSH,
- };
- 
- struct drm_v3d_get_param {