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drm/amd/display: Don't pass HostVM by default on DCN3.1

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[WHY]
Roll back previous change to stop passing this value by default, instead
add a debug flag to override to previous behaviour (or force HostVM calcs)

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michael Strauss 2022-04-05 15:56:04 -04:00 committed by Alex Deucher
parent d2069326d2
commit 4a0caac06a
2 changed files with 15 additions and 1 deletions
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7
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -359,6 +359,12 @@ enum dc_psr_power_opts {
psr_power_opt_ds_disable_allow = 0x100,
};
enum dml_hostvm_override_opts {
DML_HOSTVM_NO_OVERRIDE = 0x0,
DML_HOSTVM_OVERRIDE_FALSE = 0x1,
DML_HOSTVM_OVERRIDE_TRUE = 0x2,
};
enum dcc_option {
DCC_ENABLE = 0,
DCC_DISABLE = 1,
@ -733,6 +739,7 @@ struct dc_debug_options {
bool extended_blank_optimization;
union aux_wake_wa_options aux_wake_wa;
uint8_t psr_power_use_phy_fsm;
enum dml_hostvm_override_opts dml_hostvm_override;
};
struct gpu_info_soc_bounding_box_v1_0;

9
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
View File

@ -890,6 +890,7 @@ static const struct dc_debug_options debug_defaults_drv = {
.enable_sw_cntl_psr = true,
.apply_vendor_specific_lttpr_wa = true,
.enable_z9_disable_interface = true, /* Allow support for the PMFW interface for disable Z9*/
.dml_hostvm_override = DML_HOSTVM_OVERRIDE_FALSE,
};
static const struct dc_debug_options debug_defaults_diags = {
@ -1666,7 +1667,6 @@ int dcn31_populate_dml_pipes_from_context(
* intermittently experienced depending on peak b/w requirements.
*/
pipes[pipe_cnt].pipe.src.immediate_flip = true;
pipes[pipe_cnt].pipe.src.unbounded_req_mode = false;
pipes[pipe_cnt].pipe.src.gpuvm = true;
pipes[pipe_cnt].pipe.src.dcc_fraction_of_zs_req_luma = 0;
@ -1675,6 +1675,13 @@ int dcn31_populate_dml_pipes_from_context(
pipes[pipe_cnt].pipe.src.dcc_rate = 3;
pipes[pipe_cnt].dout.dsc_input_bpc = 0;
if (dc->debug.dml_hostvm_override == DML_HOSTVM_NO_OVERRIDE)
pipes[pipe_cnt].pipe.src.hostvm = dc->res_pool->hubbub->riommu_active;
else if (dc->debug.dml_hostvm_override == DML_HOSTVM_OVERRIDE_FALSE)
pipes[pipe_cnt].pipe.src.hostvm = false;
else if (dc->debug.dml_hostvm_override == DML_HOSTVM_OVERRIDE_TRUE)
pipes[pipe_cnt].pipe.src.hostvm = true;
if (pipes[pipe_cnt].dout.dsc_enable) {
switch (timing->display_color_depth) {
case COLOR_DEPTH_888: