linux-fslc-imx: Backport mainline patches to fix GPU hangs

Initial tests of AGL with etnaviv showed random GPU hangs. After
discussion add some mainline patches not yet present in linux-fslc-imx
in order to fix them.

BUG-AGL: SPEC-3520

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Change-Id: I8ac51e7ec91fa033554270cd79ca1b55c5862103
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/25163
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/meta-agl-bsp/meta-freescale-layer/recipes-kernel/linux/linux-fslc-imx/0004-drm-sched-Fix-passing-zero-to-PTR_ERR-warning-v2.patch b/meta-agl-bsp/meta-freescale-layer/recipes-kernel/linux/linux-fslc-imx/0004-drm-sched-Fix-passing-zero-to-PTR_ERR-warning-v2.patch
new file mode 100644
index 000000000..8c141a0f5
--- /dev/null
+++ b/meta-agl-bsp/meta-freescale-layer/recipes-kernel/linux/linux-fslc-imx/0004-drm-sched-Fix-passing-zero-to-PTR_ERR-warning-v2.patch
@@ -0,0 +1,50 @@
+From d7c5782acd354bdb5ed0fa10e1e397eaed558390 Mon Sep 17 00:00:00 2001
+From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
+Date: Tue, 29 Oct 2019 11:03:05 -0400
+Subject: [PATCH] drm/sched:  Fix passing zero to 'PTR_ERR' warning v2
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fix a static code checker warning.
+
+v2: Drop PTR_ERR_OR_ZERO.
+
+Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
+Reviewed-by: Emily Deng <Emily.Deng@amd.com>
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/scheduler/sched_main.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
+index 2af64459b3d7..fbb6446c4f69 100644
+--- a/drivers/gpu/drm/scheduler/sched_main.c
++++ b/drivers/gpu/drm/scheduler/sched_main.c
+@@ -496,8 +496,10 @@ void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched)
+ 		fence = sched->ops->run_job(s_job);
+ 
+ 		if (IS_ERR_OR_NULL(fence)) {
++			if (IS_ERR(fence))
++				dma_fence_set_error(&s_fence->finished, PTR_ERR(fence));
++
+ 			s_job->s_fence->parent = NULL;
+-			dma_fence_set_error(&s_fence->finished, PTR_ERR(fence));
+ 		} else {
+ 			s_job->s_fence->parent = fence;
+ 		}
+@@ -746,8 +748,9 @@ static int drm_sched_main(void *param)
+ 					  r);
+ 			dma_fence_put(fence);
+ 		} else {
++			if (IS_ERR(fence))
++				dma_fence_set_error(&s_fence->finished, PTR_ERR(fence));
+ 
+-			dma_fence_set_error(&s_fence->finished, PTR_ERR(fence));
+ 			drm_sched_process_job(NULL, &sched_job->cb);
+ 		}
+ 
+-- 
+2.20.1
+