1 files changed, 35 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0901-drm-amdgpu-enlarge-maximum-waiting-time-of-KIQ.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0901-drm-amdgpu-enlarge-maximum-waiting-time-of-KIQ.patch
new file mode 100644
index 00000000..2f12fc07
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0901-drm-amdgpu-enlarge-maximum-waiting-time-of-KIQ.patch
@@ -0,0 +1,35 @@
+From d83456adeb41ef9f8f02955b376244286ee4fbf7 Mon Sep 17 00:00:00 2001
+From: wentalou <wentalou@amd.com>
+Date: Mon, 3 Dec 2018 10:49:50 +0800
+Subject: [PATCH 0901/2940] drm/amdgpu: enlarge maximum waiting time of KIQ
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+KIQ in VF’s init delayed by another VF’s reset,
+which would cause late_init failed occasionally.
+MAX_KIQ_REG_TRY enlarged from 20 to 80 would fix this issue.
+
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Wentao Lou <Wentao.Lou@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+index f84a1a611c56..c5be95000323 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+@@ -240,7 +240,7 @@ enum amdgpu_kiq_irq {
+ 
+ #define MAX_KIQ_REG_WAIT       5000 /* in usecs, 5ms */
+ #define MAX_KIQ_REG_BAILOUT_INTERVAL   5 /* in msecs, 5ms */
+-#define MAX_KIQ_REG_TRY 20
++#define MAX_KIQ_REG_TRY 80 /* 20 -> 80 */
+ 
+ int amdgpu_device_ip_set_clockgating_state(void *dev,
+ 					   enum amd_ip_block_type block_type,
+-- 
+2.17.1
+