4.19-stable patches

[thirdparty/kernel/stable-queue.git] / queue-4.19 / drm-amdgpu-soc15-skip-reset-on-init.patch

From 5887a59961e2295c5b02f39dbc0ecf9212709b7b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 17 May 2019 09:21:13 -0500
Subject: drm/amdgpu/soc15: skip reset on init

From: Alex Deucher <alexander.deucher@amd.com>

commit 5887a59961e2295c5b02f39dbc0ecf9212709b7b upstream.

Not necessary on soc15 and breaks driver reload on server cards.

Acked-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/soc15.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -495,6 +495,11 @@ int soc15_set_ip_blocks(struct amdgpu_de
 		return -EINVAL;
 	}
 
+	/* Just return false for soc15 GPUs.  Reset does not seem to
+	 * be necessary.
+	 */
+	return false;
+
 	if (adev->flags & AMD_IS_APU)
 		adev->nbio_funcs = &nbio_v7_0_funcs;
 	else if (adev->asic_type == CHIP_VEGA20)