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drm/amd/display: Fallback to DMCUB when command table is missing

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[Why]
If the command table isn't available then we can fallback to DMCUB
offloading if it's enabled and available.

[How]
Instead of assigning NULL for supported command table functions we can
fallback to the DMCUB when it's available.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Kazlauskas 2020-01-06 13:21:48 -05:00 committed by Alex Deucher
parent 153ca76021
commit 830821a64d
1 changed files with 70 additions and 4 deletions
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74
drivers/gpu/drm/amd/display/dc/bios/command_table2.c
View File

@ -89,6 +89,10 @@ static enum bp_result encoder_control_digx_v1_5(
struct bios_parser *bp,
struct bp_encoder_control *cntl);
static enum bp_result encoder_control_fallback(
struct bios_parser *bp,
struct bp_encoder_control *cntl);
static void init_dig_encoder_control(struct bios_parser *bp)
{
uint32_t version =
@ -100,7 +104,7 @@ static void init_dig_encoder_control(struct bios_parser *bp)
break;
default:
dm_output_to_console("Don't have dig_encoder_control for v%d\n", version);
bp->cmd_tbl.dig_encoder_control = NULL;
bp->cmd_tbl.dig_encoder_control = encoder_control_fallback;
break;
}
}
@ -184,6 +188,18 @@ static enum bp_result encoder_control_digx_v1_5(
return result;
}
static enum bp_result encoder_control_fallback(
struct bios_parser *bp,
struct bp_encoder_control *cntl)
{
if (bp->base.ctx->dc->ctx->dmub_srv &&
bp->base.ctx->dc->debug.dmub_command_table) {
return encoder_control_digx_v1_5(bp, cntl);
}
return BP_RESULT_FAILURE;
}
/*****************************************************************************
******************************************************************************
**
@ -196,6 +212,10 @@ static enum bp_result transmitter_control_v1_6(
struct bios_parser *bp,
struct bp_transmitter_control *cntl);
static enum bp_result transmitter_control_fallback(
struct bios_parser *bp,
struct bp_transmitter_control *cntl);
static void init_transmitter_control(struct bios_parser *bp)
{
uint8_t frev;
@ -209,7 +229,7 @@ static void init_transmitter_control(struct bios_parser *bp)
break;
default:
dm_output_to_console("Don't have transmitter_control for v%d\n", crev);
bp->cmd_tbl.transmitter_control = NULL;
bp->cmd_tbl.transmitter_control = transmitter_control_fallback;
break;
}
}
@ -273,6 +293,18 @@ static enum bp_result transmitter_control_v1_6(
return result;
}
static enum bp_result transmitter_control_fallback(
struct bios_parser *bp,
struct bp_transmitter_control *cntl)
{
if (bp->base.ctx->dc->ctx->dmub_srv &&
bp->base.ctx->dc->debug.dmub_command_table) {
return transmitter_control_v1_6(bp, cntl);
}
return BP_RESULT_FAILURE;
}
/******************************************************************************
******************************************************************************
**
@ -285,6 +317,10 @@ static enum bp_result set_pixel_clock_v7(
struct bios_parser *bp,
struct bp_pixel_clock_parameters *bp_params);
static enum bp_result set_pixel_clock_fallback(
struct bios_parser *bp,
struct bp_pixel_clock_parameters *bp_params);
static void init_set_pixel_clock(struct bios_parser *bp)
{
switch (BIOS_CMD_TABLE_PARA_REVISION(setpixelclock)) {
@ -294,7 +330,7 @@ static void init_set_pixel_clock(struct bios_parser *bp)
default:
dm_output_to_console("Don't have set_pixel_clock for v%d\n",
BIOS_CMD_TABLE_PARA_REVISION(setpixelclock));
bp->cmd_tbl.set_pixel_clock = NULL;
bp->cmd_tbl.set_pixel_clock = set_pixel_clock_fallback;
break;
}
}
@ -400,6 +436,18 @@ static enum bp_result set_pixel_clock_v7(
return result;
}
static enum bp_result set_pixel_clock_fallback(
struct bios_parser *bp,
struct bp_pixel_clock_parameters *bp_params)
{
if (bp->base.ctx->dc->ctx->dmub_srv &&
bp->base.ctx->dc->debug.dmub_command_table) {
return set_pixel_clock_v7(bp, bp_params);
}
return BP_RESULT_FAILURE;
}
/******************************************************************************
******************************************************************************
**
@ -632,6 +680,11 @@ static enum bp_result enable_disp_power_gating_v2_1(
enum controller_id crtc_id,
enum bp_pipe_control_action action);
static enum bp_result enable_disp_power_gating_fallback(
struct bios_parser *bp,
enum controller_id crtc_id,
enum bp_pipe_control_action action);
static void init_enable_disp_power_gating(
struct bios_parser *bp)
{
@ -643,7 +696,7 @@ static void init_enable_disp_power_gating(
default:
dm_output_to_console("Don't enable_disp_power_gating enable_crtc for v%d\n",
BIOS_CMD_TABLE_PARA_REVISION(enabledisppowergating));
bp->cmd_tbl.enable_disp_power_gating = NULL;
bp->cmd_tbl.enable_disp_power_gating = enable_disp_power_gating_fallback;
break;
}
}
@ -695,6 +748,19 @@ static enum bp_result enable_disp_power_gating_v2_1(
return result;
}
static enum bp_result enable_disp_power_gating_fallback(
struct bios_parser *bp,
enum controller_id crtc_id,
enum bp_pipe_control_action action)
{
if (bp->base.ctx->dc->ctx->dmub_srv &&
bp->base.ctx->dc->debug.dmub_command_table) {
return enable_disp_power_gating_v2_1(bp, crtc_id, action);
}
return BP_RESULT_FAILURE;
}
/******************************************************************************
*******************************************************************************
**