From: Tony Cheng <tony.cheng@amd.com>
Date: Fri, 2 Jun 2017 06:15:57 -0400
Subject: drm/amd/display: disable forced stutter disable after programming
watermark
Git-commit: 8eee20139a63c6b53abc71c9a937f2b2047176c2
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
vbios will disable stutter pre-OS. driver re-enable after programming watermark
Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c | 5 +++++
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.h | 6 ++++++
2 files changed, 11 insertions(+)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c
@@ -582,6 +582,7 @@ static void program_watermarks(
unsigned int refclk_mhz)
{
struct dcn10_mem_input *mi = TO_DCN10_MEM_INPUT(mem_input);
+ uint32_t force_en = mem_input->ctx->dc->debug.disable_stutter ? 1 : 0;
/*
* Need to clamp to max of the register values (i.e. no wrap)
* for dcn1, all wm registers are 21-bit wide
@@ -793,6 +794,10 @@ static void program_watermarks(
REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND,
DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 68);
+ REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL,
+ DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE, 0,
+ DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE, force_en);
+
#if 0
REG_UPDATE_2(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL,
DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE, 1,
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.h
@@ -127,6 +127,7 @@
SR(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D),\
SR(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D),\
SR(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL),\
+ SR(DCHUBBUB_ARB_DRAM_STATE_CNTL),\
SR(DCHUBBUB_ARB_SAT_LEVEL),\
SR(DCHUBBUB_ARB_DF_REQ_OUTSTAND),\
/* todo: get these from GVM instead of reading registers ourselves */\
@@ -239,6 +240,7 @@ struct dcn_mi_registers {
uint32_t DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D;
uint32_t DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D;
uint32_t DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL;
+ uint32_t DCHUBBUB_ARB_DRAM_STATE_CNTL;
uint32_t DCHUBBUB_ARB_SAT_LEVEL;
uint32_t DCHUBBUB_ARB_DF_REQ_OUTSTAND;
@@ -381,6 +383,8 @@ struct dcn_mi_registers {
MI_SF(DCHUBBUB_SDPIF_AGP_TOP, SDPIF_AGP_TOP, mask_sh),\
MI_SF(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, mask_sh),\
MI_SF(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE, mask_sh),\
+ MI_SF(DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE, mask_sh),\
+ MI_SF(DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE, mask_sh),\
MI_SF(DCHUBBUB_ARB_SAT_LEVEL, DCHUBBUB_ARB_SAT_LEVEL, mask_sh),\
MI_SF(DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, mask_sh),\
/* todo: get these from GVM instead of reading registers ourselves */\
@@ -515,6 +519,8 @@ struct dcn_mi_registers {
type SDPIF_AGP_TOP;\
type DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST;\
type DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE;\
+ type DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE;\
+ type DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE;\
type DCHUBBUB_ARB_SAT_LEVEL;\
type DCHUBBUB_ARB_MIN_REQ_OUTSTAND;\
/* todo: get these from GVM instead of reading registers ourselves */\