Patch "drm/amd/amdgpu: compute ring test fail during S4 on CI" has been added to the 4.7-stable tree

Patch "drm/amd/amdgpu: compute ring test fail during S4 on CI" has been added to the 4.7-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/amd/amdgpu: compute ring test fail during S4 on CI

to the 4.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amd-amdgpu-compute-ring-test-fail-during-s4-on-ci.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 53960b4f89db58bc155d6f8aa0a44ccc59ccb26f Mon Sep 17 00:00:00 2001
From: jimqu <Jim.Qu@amd.com>
Date: Tue, 30 Aug 2016 09:03:16 +0800
Subject: drm/amd/amdgpu: compute ring test fail during S4 on CI

From: jimqu <Jim.Qu@amd.com>

commit 53960b4f89db58bc155d6f8aa0a44ccc59ccb26f upstream.

unhalt Instrction Fetch Unit after all rings are inited.

Signed-off-by: JimQu <Jim.Qu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2777,8 +2777,7 @@ static int gfx_v7_0_cp_compute_resume(st
 	u64 wb_gpu_addr;
 	u32 *buf;
 	struct bonaire_mqd *mqd;
-
-	gfx_v7_0_cp_compute_enable(adev, true);
+	struct amdgpu_ring *ring;
 
 	/* fix up chicken bits */
 	tmp = RREG32(mmCP_CPF_DEBUG);
@@ -2813,7 +2812,7 @@ static int gfx_v7_0_cp_compute_resume(st
 
 	/* init the queues.  Just two for now. */
 	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
-		struct amdgpu_ring *ring = &adev->gfx.compute_ring[i];
+		ring = &adev->gfx.compute_ring[i];
 
 		if (ring->mqd_obj == NULL) {
 			r = amdgpu_bo_create(adev,
@@ -2992,6 +2991,13 @@ static int gfx_v7_0_cp_compute_resume(st
 		amdgpu_bo_unreserve(ring->mqd_obj);
 
 		ring->ready = true;
+	}
+
+	gfx_v7_0_cp_compute_enable(adev, true);
+
+	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+		ring = &adev->gfx.compute_ring[i];
+
 		r = amdgpu_ring_test_ring(ring);
 		if (r)
 			ring->ready = false;


Patches currently in stable-queue which might be from Jim.Qu@amd.com are

queue-4.7/drm-amd-amdgpu-sdma-resume-fail-during-s4-on-ci.patch
queue-4.7/drm-amd-amdgpu-compute-ring-test-fail-during-s4-on-ci.patch