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drm/amd/display: Update PMFW z-state interface for DCN314

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[Why]
Request from PMFW to change the messaging format to specify whether we
support z-state via individual bits.

[How]
Update the args we pass in the support message.

Fixes: d5c6909e74 ("drm/amd/display: Add DCN314 clock manager")
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0
This commit is contained in:
Nicholas Kazlauskas 2022-09-09 15:24:55 -04:00 committed by Alex Deucher
parent 6094b9136c
commit 4f5bdde386
2 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c
View File

@ -339,29 +339,24 @@ void dcn314_smu_set_zstate_support(struct clk_mgr_internal *clk_mgr, enum dcn_zs
if (!clk_mgr->smu_present)
return;
if (!clk_mgr->base.ctx->dc->debug.enable_z9_disable_interface &&
(support == DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY))
support = DCN_ZSTATE_SUPPORT_DISALLOW;
// Arg[15:0] = 8/9/0 for Z8/Z9/disallow -> existing bits
// Arg[16] = Disallow Z9 -> new bit
switch (support) {
case DCN_ZSTATE_SUPPORT_ALLOW:
msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
param = 9;
param = (1 << 10) | (1 << 9) | (1 << 8);
break;
case DCN_ZSTATE_SUPPORT_DISALLOW:
msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
param = 8;
param = 0;
break;
case DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY:
msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
param = 0x00010008;
param = (1 << 10);
break;
default: //DCN_ZSTATE_SUPPORT_UNKNOWN

3
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
View File

@ -881,7 +881,8 @@ static const struct dc_plane_cap plane_cap = {
};
static const struct dc_debug_options debug_defaults_drv = {
.disable_z10 = true, /*hw not support it*/
.disable_z10 = false,
.enable_z9_disable_interface = true,
.disable_dmcu = true,
.force_abm_enable = false,
.timing_trace = false,