From b925d1eaafe41f688ea1cf37a354baca26942c06 Mon Sep 17 00:00:00 2001
From: Eric Bernstein <eric.bernstein@amd.com>
Date: Thu, 10 Feb 2022 19:19:22 -0500
Subject: drm/amd/display: Update gpuvm_max_page_table_levels IP param
Git-commit: 7e053bab30e3a97bb681cec207a87413a024fc22
Patch-mainline: v6.0-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
After some experimental tests, we noticed that we need to set
gpuvm_max_page_table_levels to '4' to meet the hardware requirements.
Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index 63227c55a2f0..1f2af676191b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -121,7 +121,7 @@ static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C
struct _vcs_dpi_ip_params_st dcn3_2_ip = {
.gpuvm_enable = 1,
- .gpuvm_max_page_table_levels = 1,
+ .gpuvm_max_page_table_levels = 4,
.hostvm_enable = 0,
.rob_buffer_size_kbytes = 128,
.det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
index 644f00f2def0..1a9bdfc35f2c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
@@ -124,7 +124,7 @@ static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C
struct _vcs_dpi_ip_params_st dcn3_21_ip = {
.gpuvm_enable = 1,
- .gpuvm_max_page_table_levels = 1,
+ .gpuvm_max_page_table_levels = 4,
.hostvm_enable = 0,
.rob_buffer_size_kbytes = 128,
.det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,
--
2.38.1