From: Krunoslav Kovac <Krunoslav.Kovac@xxxxxxx>
[Why&How]
modules/color calculates various colour operations which are translated
to abstracted HW. DCE 5-12 had almost no important changes, but
starting with DCN1, every new generation comes with fairly major
differences in color pipeline.
We would hack it with some DCN checks, but a better approach is to
abstract color pipe capabilities so modules/DM can decide mapping to
HW block based on logical capabilities,
Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@xxxxxxx>
Reviewed-by: Aric Cyr <Aric.Cyr@xxxxxxx>
Acked-by: Anthony Koo <Anthony.Koo@xxxxxxx>
Acked-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 7 +--
drivers/gpu/drm/amd/display/dc/dc.h | 45 ++++++++++++++++++-
.../drm/amd/display/dc/dcn10/dcn10_resource.c | 34 ++++++++++++++
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 35 ++++++++++++++-
.../drm/amd/display/dc/dcn21/dcn21_resource.c | 35 ++++++++++++++-
.../amd/display/modules/color/color_gamma.c | 31 ++++++++++---
.../amd/display/modules/color/color_gamma.h | 4 +-
7 files changed, 178 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index 838f35668f12..4dfb6b55bb2e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -239,7 +239,8 @@ static int __set_output_tf(struct dc_transfer_func *func,
* instead to simulate this.
*/
gamma->type = GAMMA_CUSTOM;
- res = mod_color_calculate_degamma_params(func, gamma, true);
+ res = mod_color_calculate_degamma_params(NULL, func,
+ gamma, true);
} else {
/*
* Assume sRGB. The actual mapping will depend on whether the
@@ -271,7 +272,7 @@ static int __set_input_tf(struct dc_transfer_func *func,
__drm_lut_to_dc_gamma(lut, gamma, false);
- res = mod_color_calculate_degamma_params(func, gamma, true);
+ res = mod_color_calculate_degamma_params(NULL, func, gamma, true);
dc_gamma_release(&gamma);
return res ? 0 : -ENOMEM;
@@ -485,7 +486,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
dc_plane_state->in_transfer_func->tf = tf;
if (tf != TRANSFER_FUNCTION_SRGB &&
- !mod_color_calculate_degamma_params(
+ !mod_color_calculate_degamma_params(NULL,
dc_plane_state->in_transfer_func, NULL, false))
return -ENOMEM;
} else {
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 99c8e40049e6..b4aeb5d8a818 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -98,6 +98,49 @@ struct dc_plane_cap {
} max_downscale_factor;
};
+// Color management caps (DPP and MPC)
+struct rom_curve_caps {
+ uint16_t srgb : 1;
+ uint16_t bt2020 : 1;
+ uint16_t gamma2_2 : 1;
+ uint16_t pq : 1;
+ uint16_t hlg : 1;
+};
+
+struct dpp_color_caps {
+ uint16_t dcn_arch : 1; // all DCE generations treated the same
+ // input lut is different than most LUTs, just plain 256-entry lookup
+ uint16_t input_lut_shared : 1; // shared with DGAM
+ uint16_t icsc : 1;
+ uint16_t dgam_ram : 1;
+ uint16_t post_csc : 1; // before gamut remap
+ uint16_t gamma_corr : 1;
+
+ // hdr_mult and gamut remap always available in DPP (in that order)
+ // 3d lut implies shaper LUT,
+ // it may be shared with MPC - check MPC:shared_3d_lut flag
+ uint16_t hw_3d_lut : 1;
+ uint16_t ogam_ram : 1; // blnd gam
+ uint16_t ocsc : 1;
+ struct rom_curve_caps dgam_rom_caps;
+ struct rom_curve_caps ogam_rom_caps;
+};
+
+struct mpc_color_caps {
+ uint16_t gamut_remap : 1;
+ uint16_t ogam_ram : 1;
+ uint16_t ocsc : 1;
+ uint16_t num_3dluts : 3; //3d lut always assumes a preceding shaper LUT
+ uint16_t shared_3d_lut:1; //can be in either DPP or MPC, but single instance
+
+ struct rom_curve_caps ogam_rom_caps;
+};
+
+struct dc_color_caps {
+ struct dpp_color_caps dpp;
+ struct mpc_color_caps mpc;
+};
+
struct dc_caps {
uint32_t max_streams;
uint32_t max_links;
@@ -120,9 +163,9 @@ struct dc_caps {
bool psp_setup_panel_mode;
bool extended_aux_timeout_support;
bool dmcub_support;
- bool hw_3d_lut;
enum dp_protocol_version max_dp_protocol_version;
struct dc_plane_cap planes[MAX_PLANES];
+ struct dc_color_caps color;
};
struct dc_bug_wa {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 43116749af9f..6d506c37fc71 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1384,6 +1384,40 @@ static bool dcn10_resource_construct(
/* Raven DP PHY HBR2 eye diagram pattern is not stable. Use TP4 */
dc->caps.force_dp_tps4_for_cp2520 = true;
+ /* Color pipeline capabilities */
+ dc->caps.color.dpp.dcn_arch = 1;
+ dc->caps.color.dpp.input_lut_shared = 1;
+ dc->caps.color.dpp.icsc = 1;
+ dc->caps.color.dpp.dgam_ram = 1;
+ dc->caps.color.dpp.dgam_rom_caps.srgb = 1;
+ dc->caps.color.dpp.dgam_rom_caps.bt2020 = 1;
+ dc->caps.color.dpp.dgam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.dgam_rom_caps.pq = 0;
+ dc->caps.color.dpp.dgam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.post_csc = 0;
+ dc->caps.color.dpp.gamma_corr = 0;
+
+ dc->caps.color.dpp.hw_3d_lut = 0;
+ dc->caps.color.dpp.ogam_ram = 1; // RGAM on DCN1
+ dc->caps.color.dpp.ogam_rom_caps.srgb = 1;
+ dc->caps.color.dpp.ogam_rom_caps.bt2020 = 1;
+ dc->caps.color.dpp.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.ogam_rom_caps.pq = 0;
+ dc->caps.color.dpp.ogam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.ocsc = 1;
+
+ /* no post-blend color operations */
+ dc->caps.color.mpc.gamut_remap = 0;
+ dc->caps.color.mpc.num_3dluts = 0;
+ dc->caps.color.mpc.shared_3d_lut = 0;
+ dc->caps.color.mpc.ogam_ram = 0;
+ dc->caps.color.mpc.ogam_rom_caps.srgb = 0;
+ dc->caps.color.mpc.ogam_rom_caps.bt2020 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.pq = 0;
+ dc->caps.color.mpc.ogam_rom_caps.hlg = 0;
+ dc->caps.color.mpc.ocsc = 0;
+
if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
dc->debug = debug_defaults_drv;
else
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index b7e4d0c2432c..f04d0872a8ed 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -3709,9 +3709,42 @@ static bool dcn20_resource_construct(
dc->caps.max_slave_planes = 1;
dc->caps.post_blend_color_processing = true;
dc->caps.force_dp_tps4_for_cp2520 = true;
- dc->caps.hw_3d_lut = true;
dc->caps.extended_aux_timeout_support = true;
+ /* Color pipeline capabilities */
+ dc->caps.color.dpp.dcn_arch = 1;
+ dc->caps.color.dpp.input_lut_shared = 0;
+ dc->caps.color.dpp.icsc = 1;
+ dc->caps.color.dpp.dgam_ram = 1;
+ dc->caps.color.dpp.dgam_rom_caps.srgb = 1;
+ dc->caps.color.dpp.dgam_rom_caps.bt2020 = 1;
+ dc->caps.color.dpp.dgam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.dgam_rom_caps.pq = 0;
+ dc->caps.color.dpp.dgam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.post_csc = 0;
+ dc->caps.color.dpp.gamma_corr = 0;
+
+ dc->caps.color.dpp.hw_3d_lut = 1;
+ dc->caps.color.dpp.ogam_ram = 1;
+ // no OGAM ROM on DCN2, only MPC ROM
+ dc->caps.color.dpp.ogam_rom_caps.srgb = 0;
+ dc->caps.color.dpp.ogam_rom_caps.bt2020 = 0;
+ dc->caps.color.dpp.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.ogam_rom_caps.pq = 0;
+ dc->caps.color.dpp.ogam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.ocsc = 0;
+
+ dc->caps.color.mpc.gamut_remap = 0;
+ dc->caps.color.mpc.num_3dluts = 0;
+ dc->caps.color.mpc.shared_3d_lut = 0;
+ dc->caps.color.mpc.ogam_ram = 1;
+ dc->caps.color.mpc.ogam_rom_caps.srgb = 0;
+ dc->caps.color.mpc.ogam_rom_caps.bt2020 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.pq = 0;
+ dc->caps.color.mpc.ogam_rom_caps.hlg = 0;
+ dc->caps.color.mpc.ocsc = 1;
+
if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV) {
dc->debug = debug_defaults_drv;
} else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
index 802372f09dc7..d771fe1e2c4e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -1798,7 +1798,6 @@ static bool dcn21_resource_construct(
dc->caps.i2c_speed_in_khz = 100;
dc->caps.max_cursor_size = 256;
dc->caps.dmdata_alloc_size = 2048;
- dc->caps.hw_3d_lut = true;
dc->caps.max_slave_planes = 1;
dc->caps.post_blend_color_processing = true;
@@ -1807,6 +1806,40 @@ static bool dcn21_resource_construct(
dc->caps.dmcub_support = true;
dc->caps.is_apu = true;
+ /* Color pipeline capabilities */
+ dc->caps.color.dpp.dcn_arch = 1;
+ dc->caps.color.dpp.input_lut_shared = 0;
+ dc->caps.color.dpp.icsc = 1;
+ dc->caps.color.dpp.dgam_ram = 1;
+ dc->caps.color.dpp.dgam_rom_caps.srgb = 1;
+ dc->caps.color.dpp.dgam_rom_caps.bt2020 = 1;
+ dc->caps.color.dpp.dgam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.dgam_rom_caps.pq = 0;
+ dc->caps.color.dpp.dgam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.post_csc = 0;
+ dc->caps.color.dpp.gamma_corr = 0;
+
+ dc->caps.color.dpp.hw_3d_lut = 1;
+ dc->caps.color.dpp.ogam_ram = 1;
+ // no OGAM ROM on DCN2
+ dc->caps.color.dpp.ogam_rom_caps.srgb = 0;
+ dc->caps.color.dpp.ogam_rom_caps.bt2020 = 0;
+ dc->caps.color.dpp.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.dpp.ogam_rom_caps.pq = 0;
+ dc->caps.color.dpp.ogam_rom_caps.hlg = 0;
+ dc->caps.color.dpp.ocsc = 0;
+
+ dc->caps.color.mpc.gamut_remap = 0;
+ dc->caps.color.mpc.num_3dluts = 0;
+ dc->caps.color.mpc.shared_3d_lut = 0;
+ dc->caps.color.mpc.ogam_ram = 1;
+ dc->caps.color.mpc.ogam_rom_caps.srgb = 0;
+ dc->caps.color.mpc.ogam_rom_caps.bt2020 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.gamma2_2 = 0;
+ dc->caps.color.mpc.ogam_rom_caps.pq = 0;
+ dc->caps.color.mpc.ogam_rom_caps.hlg = 0;
+ dc->caps.color.mpc.ocsc = 1;
+
if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
dc->debug = debug_defaults_drv;
else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
index d47253cdcc4e..9431b48aecb4 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
@@ -1782,7 +1782,8 @@ bool calculate_user_regamma_ramp(struct dc_transfer_func *output_tf,
return ret;
}
-bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf,
+bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps,
+ struct dc_transfer_func *input_tf,
const struct dc_gamma *ramp, bool mapUserRamp)
{
struct dc_transfer_func_distributed_points *tf_pts = &input_tf->tf_pts;
@@ -1801,11 +1802,29 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf,
/* we can use hardcoded curve for plain SRGB TF
* If linear, it's bypass if on user ramp
*/
- if (input_tf->type == TF_TYPE_PREDEFINED &&
- (input_tf->tf == TRANSFER_FUNCTION_SRGB ||
- input_tf->tf == TRANSFER_FUNCTION_LINEAR) &&
- !mapUserRamp)
- return true;
+ if (input_tf->type == TF_TYPE_PREDEFINED) {
+ if ((input_tf->tf == TRANSFER_FUNCTION_SRGB ||
+ input_tf->tf == TRANSFER_FUNCTION_LINEAR) &&
+ !mapUserRamp)
+ return true;
+
+ if (dc_caps != NULL &&
+ dc_caps->dpp.dcn_arch == 1) {
+
+ if (input_tf->tf == TRANSFER_FUNCTION_PQ &&
+ dc_caps->dpp.dgam_rom_caps.pq == 1)
+ return true;
+
+ if (input_tf->tf == TRANSFER_FUNCTION_GAMMA22 &&
+ dc_caps->dpp.dgam_rom_caps.gamma2_2 == 1)
+ return true;
+
+ // HLG OOTF not accounted for
+ if (input_tf->tf == TRANSFER_FUNCTION_HLG &&
+ dc_caps->dpp.dgam_rom_caps.hlg == 1)
+ return true;
+ }
+ }
input_tf->type = TF_TYPE_DISTRIBUTED_POINTS;
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
index 9994817a9a03..7f56226ba77a 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
@@ -30,6 +30,7 @@ struct dc_transfer_func;
struct dc_gamma;
struct dc_transfer_func_distributed_points;
struct dc_rgb_fixed;
+struct dc_color_caps;
enum dc_transfer_func_predefined;
/* For SetRegamma ADL interface support
@@ -100,7 +101,8 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed,
const struct freesync_hdr_tf_params *fs_params);
-bool mod_color_calculate_degamma_params(struct dc_transfer_func *output_tf,
+bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps,
+ struct dc_transfer_func *output_tf,
const struct dc_gamma *ramp, bool mapUserRamp);
bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,
--
2.17.1
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