From 2bf1c8cc2c06871cf291aed819921d014387e747 Mon Sep 17 00:00:00 2001
From: Charlene Liu <Charlene.Liu@amd.com>
Date: Tue, 20 Sep 2022 09:23:06 -0400
Subject: drm/amd/display: prevent S4 test from failing
Git-commit: dfb3367bd082ccf52d3c13ff62257f08407dffcf
Patch-mainline: v6.1-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
[why]
limit the vm prefetch check for now, until the feature is fully
verified.
Reviewed-by: Hansen Dsouza <Hansen.Dsouza@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
index 5752271f22df..c5e200d09038 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
@@ -67,15 +67,9 @@ static uint32_t convert_and_clamp(
void dcn21_dchvm_init(struct hubbub *hubbub)
{
struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub);
- uint32_t riommu_active, prefetch_done;
+ uint32_t riommu_active;
int i;
- REG_GET(DCHVM_RIOMMU_STAT0, HOSTVM_PREFETCH_DONE, &prefetch_done);
-
- if (prefetch_done) {
- hubbub->riommu_active = true;
- return;
- }
//Init DCHVM block
REG_UPDATE(DCHVM_CTRL0, HOSTVM_INIT_REQ, 1);
--
2.38.1