[PATCH 12/20] drm/amd/display: Enable SYMCLK gating in DCCG
Alex Hung
alex.hung at amd.com
Wed May 8 17:13:12 UTC 2024
From: Daniel Miess <daniel.miess at amd.com>
[WHY & HOW]
Enable root clock optimization for SYMCLK and only
disable it when it's actively used.
Reviewed-by: Charlene Liu <charlene.liu at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Daniel Miess <daniel.miess at amd.com>
---
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
.../amd/display/dc/dccg/dcn35/dcn35_dccg.c | 102 ++++++++++--------
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 45 +++++++-
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.h | 2 +
.../amd/display/dc/hwss/dcn35/dcn35_init.c | 1 +
.../amd/display/dc/hwss/dcn351/dcn351_init.c | 1 +
.../display/dc/hwss/hw_sequencer_private.h | 4 +
drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h | 7 ++
8 files changed, 115 insertions(+), 48 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 2fce8c0303fa..eef2f357fe14 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -726,6 +726,7 @@ enum pg_hw_pipe_resources {
PG_DPSTREAM,
PG_HDMISTREAM,
PG_PHYSYMCLK,
+ PG_SYMCLK,
PG_HW_PIPE_RESOURCES_NUM_ELEMENT
};
diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c b/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c
index 1fc3aa2b507b..d3b27920e294 100644
--- a/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c
@@ -655,9 +655,61 @@ static void dccg35_disable_symclk32_se(
}
}
+static void dccg35_set_symclk_root_clock_gating(struct dccg *dccg, uint32_t stream_enc_inst,
+ uint32_t link_enc_inst, bool enable)
+{
+ struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+
+ switch (stream_enc_inst) {
+ case 0:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_FE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 1:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_FE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 2:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_FE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 3:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_FE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 4:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_FE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ }
+
+ switch (link_enc_inst) {
+ case 0:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 1:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 2:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 3:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ case 4:
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_ROOT_GATE_DISABLE, enable ? 1 : 0);
+ break;
+ }
+}
+
void dccg35_init(struct dccg *dccg)
{
- int otg_inst;
+ int otg_inst, phy_inst;
/* Set HPO stream encoder to use refclk to avoid case where PHY is
* disabled and SYMCLK32 for HPO SE is sourced from PHYD32CLK which
* will cause DCN to hang.
@@ -671,10 +723,9 @@ void dccg35_init(struct dccg *dccg)
dccg31_set_symclk32_le_root_clock_gating(dccg, otg_inst, false);
}
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// for (otg_inst = 0; otg_inst < 4; otg_inst++)
-// dccg35_disable_symclk_se(dccg, otg_inst, otg_inst);
-
+ if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ for (phy_inst = 0; phy_inst < 5; phy_inst++)
+ dccg35_set_symclk_root_clock_gating(dccg, phy_inst, phy_inst, false);
if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpstream)
for (otg_inst = 0; otg_inst < 4; otg_inst++) {
@@ -798,32 +849,22 @@ static void dccg35_enable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst,
case 0:
REG_UPDATE(SYMCLKA_CLOCK_ENABLE,
SYMCLKA_CLOCK_ENABLE, 1);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_ROOT_GATE_DISABLE, 1);
break;
case 1:
REG_UPDATE(SYMCLKB_CLOCK_ENABLE,
SYMCLKB_CLOCK_ENABLE, 1);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_ROOT_GATE_DISABLE, 1);
break;
case 2:
REG_UPDATE(SYMCLKC_CLOCK_ENABLE,
SYMCLKC_CLOCK_ENABLE, 1);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_ROOT_GATE_DISABLE, 1);
break;
case 3:
REG_UPDATE(SYMCLKD_CLOCK_ENABLE,
SYMCLKD_CLOCK_ENABLE, 1);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_ROOT_GATE_DISABLE, 1);
break;
case 4:
REG_UPDATE(SYMCLKE_CLOCK_ENABLE,
SYMCLKE_CLOCK_ENABLE, 1);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_ROOT_GATE_DISABLE, 1);
break;
}
@@ -832,36 +873,26 @@ static void dccg35_enable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst,
REG_UPDATE_2(SYMCLKA_CLOCK_ENABLE,
SYMCLKA_FE_EN, 1,
SYMCLKA_FE_SRC_SEL, link_enc_inst);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_FE_ROOT_GATE_DISABLE, 1);
break;
case 1:
REG_UPDATE_2(SYMCLKB_CLOCK_ENABLE,
SYMCLKB_FE_EN, 1,
SYMCLKB_FE_SRC_SEL, link_enc_inst);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_FE_ROOT_GATE_DISABLE, 1);
break;
case 2:
REG_UPDATE_2(SYMCLKC_CLOCK_ENABLE,
SYMCLKC_FE_EN, 1,
SYMCLKC_FE_SRC_SEL, link_enc_inst);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_FE_ROOT_GATE_DISABLE, 1);
break;
case 3:
REG_UPDATE_2(SYMCLKD_CLOCK_ENABLE,
SYMCLKD_FE_EN, 1,
SYMCLKD_FE_SRC_SEL, link_enc_inst);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_FE_ROOT_GATE_DISABLE, 1);
break;
case 4:
REG_UPDATE_2(SYMCLKE_CLOCK_ENABLE,
SYMCLKE_FE_EN, 1,
SYMCLKE_FE_SRC_SEL, link_enc_inst);
- if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
- REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_FE_ROOT_GATE_DISABLE, 1);
break;
}
}
@@ -922,36 +953,26 @@ static void dccg35_disable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst
REG_UPDATE_2(SYMCLKA_CLOCK_ENABLE,
SYMCLKA_FE_EN, 0,
SYMCLKA_FE_SRC_SEL, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_FE_ROOT_GATE_DISABLE, 0);
break;
case 1:
REG_UPDATE_2(SYMCLKB_CLOCK_ENABLE,
SYMCLKB_FE_EN, 0,
SYMCLKB_FE_SRC_SEL, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_FE_ROOT_GATE_DISABLE, 0);
break;
case 2:
REG_UPDATE_2(SYMCLKC_CLOCK_ENABLE,
SYMCLKC_FE_EN, 0,
SYMCLKC_FE_SRC_SEL, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_FE_ROOT_GATE_DISABLE, 0);
break;
case 3:
REG_UPDATE_2(SYMCLKD_CLOCK_ENABLE,
SYMCLKD_FE_EN, 0,
SYMCLKD_FE_SRC_SEL, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_FE_ROOT_GATE_DISABLE, 0);
break;
case 4:
REG_UPDATE_2(SYMCLKE_CLOCK_ENABLE,
SYMCLKE_FE_EN, 0,
SYMCLKE_FE_SRC_SEL, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_FE_ROOT_GATE_DISABLE, 0);
break;
}
@@ -964,32 +985,22 @@ static void dccg35_disable_symclk_se(struct dccg *dccg, uint32_t stream_enc_inst
case 0:
REG_UPDATE(SYMCLKA_CLOCK_ENABLE,
SYMCLKA_CLOCK_ENABLE, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKA_ROOT_GATE_DISABLE, 0);
break;
case 1:
REG_UPDATE(SYMCLKB_CLOCK_ENABLE,
SYMCLKB_CLOCK_ENABLE, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKB_ROOT_GATE_DISABLE, 0);
break;
case 2:
REG_UPDATE(SYMCLKC_CLOCK_ENABLE,
SYMCLKC_CLOCK_ENABLE, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKC_ROOT_GATE_DISABLE, 0);
break;
case 3:
REG_UPDATE(SYMCLKD_CLOCK_ENABLE,
SYMCLKD_CLOCK_ENABLE, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKD_ROOT_GATE_DISABLE, 0);
break;
case 4:
REG_UPDATE(SYMCLKE_CLOCK_ENABLE,
SYMCLKE_CLOCK_ENABLE, 0);
-// if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
-// REG_UPDATE(DCCG_GATE_DISABLE_CNTL5, SYMCLKE_ROOT_GATE_DISABLE, 0);
break;
}
}
@@ -1022,6 +1033,7 @@ static const struct dccg_funcs dccg35_funcs = {
.set_valid_pixel_rate = dccg35_set_valid_pixel_rate,
.enable_symclk_se = dccg35_enable_symclk_se,
.disable_symclk_se = dccg35_disable_symclk_se,
+ .set_symclk_root_clock_gating = dccg35_set_symclk_root_clock_gating,
.set_dtbclk_p_src = dccg35_set_dtbclk_p_src,
};
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
index 6d40e93b5497..6d9ec802f1bb 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
@@ -519,6 +519,17 @@ void dcn35_physymclk_root_clock_control(struct dce_hwseq *hws, unsigned int phy_
}
}
+void dcn35_symclk_root_clock_control(struct dce_hwseq *hws, unsigned int enc_inst, bool clock_on)
+{
+ if (!hws->ctx->dc->debug.root_clock_optimization.bits.symclk_fe)
+ return;
+
+ if (hws->ctx->dc->res_pool->dccg->funcs->set_symclk_root_clock_gating) {
+ hws->ctx->dc->res_pool->dccg->funcs->set_symclk_root_clock_gating(
+ hws->ctx->dc->res_pool->dccg, enc_inst, enc_inst, clock_on);
+ }
+}
+
void dcn35_dsc_pg_control(
struct dce_hwseq *hws,
unsigned int dsc_inst,
@@ -1008,6 +1019,7 @@ void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
int i = 0, j = 0;
int edp_num = 0;
struct dc_link *edp_links[MAX_NUM_EDP] = { NULL };
+ bool stream_enc_in_use[MAX_PIPES] = { false };
memset(update_state, 0, sizeof(struct pg_block_update));
@@ -1053,10 +1065,17 @@ void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
if (pipe_ctx->stream_res.hpo_dp_stream_enc)
update_state->pg_pipe_res_update[PG_DPSTREAM][pipe_ctx->stream_res.hpo_dp_stream_enc->inst] = false;
+
+ if (pipe_ctx->stream_res.stream_enc &&
+ !pipe_ctx->stream_res.hpo_dp_stream_enc)
+ stream_enc_in_use[pipe_ctx->stream_res.stream_enc->stream_enc_inst] = true;
}
+ for (i = 0; i < dc->res_pool->pipe_count; i++)
+ if (stream_enc_in_use[i])
+ update_state->pg_pipe_res_update[PG_SYMCLK][i] = false;
+
for (i = 0; i < dc->link_count; i++) {
- update_state->pg_pipe_res_update[PG_PHYSYMCLK][dc->links[i]->link_enc_hw_inst] = true;
if (dc->links[i]->type != dc_connection_none)
update_state->pg_pipe_res_update[PG_PHYSYMCLK][dc->links[i]->link_enc_hw_inst] = false;
}
@@ -1120,6 +1139,10 @@ void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
if (j == PG_DPSTREAM && new_pipe->stream_res.hpo_dp_stream_enc)
update_state->pg_pipe_res_update[j][new_pipe->stream_res.hpo_dp_stream_enc->inst] = true;
+
+ if (j == PG_SYMCLK && new_pipe->stream_res.stream_enc &&
+ !new_pipe->stream_res.hpo_dp_stream_enc)
+ update_state->pg_pipe_res_update[j][new_pipe->stream_res.stream_enc->stream_enc_inst] = true;
}
} else if (cur_pipe->plane_state == new_pipe->plane_state ||
cur_pipe == new_pipe) {
@@ -1154,6 +1177,12 @@ void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
cur_pipe->stream_res.hpo_dp_stream_enc != new_pipe->stream_res.hpo_dp_stream_enc &&
new_pipe->stream_res.hpo_dp_stream_enc)
update_state->pg_pipe_res_update[j][new_pipe->stream_res.hpo_dp_stream_enc->inst] = true;
+
+ if (j == PG_SYMCLK &&
+ new_pipe->stream_res.stream_enc &&
+ cur_pipe->stream_res.stream_enc != new_pipe->stream_res.stream_enc &&
+ !new_pipe->stream_res.hpo_dp_stream_enc)
+ update_state->pg_pipe_res_update[j][new_pipe->stream_res.stream_enc->stream_enc_inst] = true;
}
}
}
@@ -1312,11 +1341,16 @@ void dcn35_root_clock_control(struct dc *dc,
dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on);
}
- for (i = 0; i < dc->res_pool->dig_link_enc_count; i++)
+ for (i = 0; i < dc->res_pool->dig_link_enc_count; i++) {
if (update_state->pg_pipe_res_update[PG_PHYSYMCLK][i])
if (dc->hwseq->funcs.physymclk_root_clock_control)
dc->hwseq->funcs.physymclk_root_clock_control(dc->hwseq, i, power_on);
+ if (update_state->pg_pipe_res_update[PG_SYMCLK][i])
+ if (dc->hwseq->funcs.symclk_root_clock_control)
+ dc->hwseq->funcs.symclk_root_clock_control(dc->hwseq, i, power_on);
+ }
+
}
for (i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {
if (update_state->pg_pipe_res_update[PG_DSC][i]) {
@@ -1342,11 +1376,16 @@ void dcn35_root_clock_control(struct dc *dc,
dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on);
}
- for (i = 0; i < dc->res_pool->dig_link_enc_count; i++)
+ for (i = 0; i < dc->res_pool->dig_link_enc_count; i++) {
if (update_state->pg_pipe_res_update[PG_PHYSYMCLK][i])
if (dc->hwseq->funcs.physymclk_root_clock_control)
dc->hwseq->funcs.physymclk_root_clock_control(dc->hwseq, i, power_on);
+ if (update_state->pg_pipe_res_update[PG_SYMCLK][i])
+ if (dc->hwseq->funcs.symclk_root_clock_control)
+ dc->hwseq->funcs.symclk_root_clock_control(dc->hwseq, i, power_on);
+ }
+
}
}
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h
index bc05beba5f2c..503a8419bae7 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h
@@ -41,6 +41,8 @@ void dcn35_dpstream_root_clock_control(struct dce_hwseq *hws, unsigned int dp_hp
void dcn35_physymclk_root_clock_control(struct dce_hwseq *hws, unsigned int phy_inst, bool clock_on);
+void dcn35_symclk_root_clock_control(struct dce_hwseq *hws, unsigned int enc_inst, bool clock_on);
+
void dcn35_enable_power_gating_plane(struct dce_hwseq *hws, bool enable);
void dcn35_set_dmu_fgcg(struct dce_hwseq *hws, bool enable);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c
index 663bacd1fafd..0b6d7d76c85b 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c
@@ -150,6 +150,7 @@ static const struct hwseq_private_funcs dcn35_private_funcs = {
.dpp_root_clock_control = dcn35_dpp_root_clock_control,
.dpstream_root_clock_control = dcn35_dpstream_root_clock_control,
.physymclk_root_clock_control = dcn35_physymclk_root_clock_control,
+ .symclk_root_clock_control = dcn35_symclk_root_clock_control,
.program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree,
.update_odm = dcn35_update_odm,
.set_hdr_multiplier = dcn10_set_hdr_multiplier,
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c
index d8de1c6a84e8..e8643f305fd6 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c
@@ -149,6 +149,7 @@ static const struct hwseq_private_funcs dcn351_private_funcs = {
.dpp_root_clock_control = dcn35_dpp_root_clock_control,
.dpstream_root_clock_control = dcn35_dpstream_root_clock_control,
.physymclk_root_clock_control = dcn35_physymclk_root_clock_control,
+ .symclk_root_clock_control = dcn35_symclk_root_clock_control,
.program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree,
.update_odm = dcn35_update_odm,
.set_hdr_multiplier = dcn10_set_hdr_multiplier,
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
index 7ac3f2a09487..e2189795ca30 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
@@ -128,6 +128,10 @@ struct hwseq_private_funcs {
struct dce_hwseq *hws,
unsigned int phy_inst,
bool clock_on);
+ void (*symclk_root_clock_control)(
+ struct dce_hwseq *hws,
+ unsigned int enc_inst,
+ bool clock_on);
void (*dpp_pg_control)(struct dce_hwseq *hws,
unsigned int dpp_inst,
bool power_on);
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
index 867bc67aabfa..5b0924ea78af 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
@@ -199,6 +199,13 @@ struct dccg_funcs {
struct dccg *dccg,
uint32_t stream_enc_inst,
uint32_t link_enc_inst);
+
+ void (*set_symclk_root_clock_gating)(
+ struct dccg *dccg,
+ uint32_t stream_enc_inst,
+ uint32_t link_enc_inst,
+ bool enable);
+
void (*set_dp_dto)(
struct dccg *dccg,
const struct dp_dto_params *params);
--
2.34.1
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