aboutsummaryrefslogtreecommitdiffstats
path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2821-drm-amdkfd-Disable-idle-optimization-for-chained-run.patch
blob: af4ed5046bcf0a2c88552658ab2d2705492bdb71 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
From aac3880ec6ed9a8563314a2bb5aa3c0d9b786c04 Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Thu, 20 Jun 2019 14:54:35 -0400
Subject: [PATCH 2821/2940] drm/amdkfd: Disable idle optimization for chained
 runlist

This works around difficult-to-reproduce soft hangs on oversubscribed
runlists.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c
index 9222a43adae1..aaf9d620c771 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c
@@ -140,6 +140,7 @@ static int pm_runlist_v9(struct packet_manager *pm, uint32_t *buffer,
 	packet->bitfields4.ib_size = ib_size_in_dwords;
 	packet->bitfields4.chain = chain ? 1 : 0;
 	packet->bitfields4.offload_polling = 0;
+	packet->bitfields4.chained_runlist_idle_disable = chain ? 1 : 0;
 	packet->bitfields4.valid = 1;
 	packet->bitfields4.process_cnt = concurrent_proc_cnt;
 	packet->ordinal2 = lower_32_bits(ib);
-- 
2.17.1