[PATCH 08/29] drm/amd/display: add REFCYC_PER_TRIP_TO_MEMORY programming
Bhawanpreet Lakha
Bhawanpreet.Lakha at amd.com
Fri Oct 11 19:53:03 UTC 2019
it allows us to do urgent latency programming
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
---
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 16 ++++++++
.../drm/amd/display/dc/dcn21/dcn21_hubbub.c | 39 +++++++++++++++++--
.../drm/amd/display/dc/dcn21/dcn21_hubbub.h | 17 ++++++++
.../gpu/drm/amd/display/dc/inc/hw/mem_input.h | 1 +
4 files changed, 69 insertions(+), 4 deletions(-)
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 9cc6797e3860..086d1bc0d0a5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2573,6 +2573,10 @@ void dcn20_calculate_wm(
context->bw_ctx.bw.dcn.watermarks.b.cstate_pstate.cstate_exit_ns = get_wm_stutter_exit(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.b.cstate_pstate.pstate_change_ns = get_wm_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.b.pte_meta_urgent_ns = get_wm_memory_trip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#if defined(CONFIG_DRM_AMD_DC_DCN2_1)
+ context->bw_ctx.bw.dcn.watermarks.b.frac_urg_bw_nom = get_fraction_of_urgent_bandwidth(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+ context->bw_ctx.bw.dcn.watermarks.b.frac_urg_bw_flip = get_fraction_of_urgent_bandwidth_imm_flip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#endif
if (vlevel < 2) {
pipes[0].clks_cfg.voltage = 2;
@@ -2584,6 +2588,10 @@ void dcn20_calculate_wm(
context->bw_ctx.bw.dcn.watermarks.c.cstate_pstate.cstate_exit_ns = get_wm_stutter_exit(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.c.cstate_pstate.pstate_change_ns = get_wm_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.c.pte_meta_urgent_ns = get_wm_memory_trip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#if defined(CONFIG_DRM_AMD_DC_DCN2_1)
+ context->bw_ctx.bw.dcn.watermarks.c.frac_urg_bw_nom = get_fraction_of_urgent_bandwidth(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+ context->bw_ctx.bw.dcn.watermarks.c.frac_urg_bw_flip = get_fraction_of_urgent_bandwidth_imm_flip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#endif
if (vlevel < 3) {
pipes[0].clks_cfg.voltage = 3;
@@ -2595,6 +2603,10 @@ void dcn20_calculate_wm(
context->bw_ctx.bw.dcn.watermarks.d.cstate_pstate.cstate_exit_ns = get_wm_stutter_exit(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.d.cstate_pstate.pstate_change_ns = get_wm_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.d.pte_meta_urgent_ns = get_wm_memory_trip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#if defined(CONFIG_DRM_AMD_DC_DCN2_1)
+ context->bw_ctx.bw.dcn.watermarks.d.frac_urg_bw_nom = get_fraction_of_urgent_bandwidth(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+ context->bw_ctx.bw.dcn.watermarks.d.frac_urg_bw_flip = get_fraction_of_urgent_bandwidth_imm_flip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#endif
pipes[0].clks_cfg.voltage = vlevel;
pipes[0].clks_cfg.dcfclk_mhz = context->bw_ctx.dml.soc.clock_limits[vlevel].dcfclk_mhz;
@@ -2604,6 +2616,10 @@ void dcn20_calculate_wm(
context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.cstate_exit_ns = get_wm_stutter_exit(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns = get_wm_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
context->bw_ctx.bw.dcn.watermarks.a.pte_meta_urgent_ns = get_wm_memory_trip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#if defined(CONFIG_DRM_AMD_DC_DCN2_1)
+ context->bw_ctx.bw.dcn.watermarks.a.frac_urg_bw_nom = get_fraction_of_urgent_bandwidth(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+ context->bw_ctx.bw.dcn.watermarks.a.frac_urg_bw_flip = get_fraction_of_urgent_bandwidth_imm_flip(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
+#endif
}
void dcn20_calculate_dlg_params(
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
index d1266741763b..8e7e79f44272 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c
@@ -97,7 +97,7 @@ void dcn21_dchvm_init(struct hubbub *hubbub)
REG_WAIT(DCHVM_RIOMMU_STAT0, HOSTVM_PREFETCH_DONE, 1, 5, 100);
}
-static int hubbub21_init_dchub(struct hubbub *hubbub,
+int hubbub21_init_dchub(struct hubbub *hubbub,
struct dcn_hubbub_phys_addr_config *pa_config)
{
struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub);
@@ -120,7 +120,7 @@ static int hubbub21_init_dchub(struct hubbub *hubbub,
return NUM_VMID;
}
-static void hubbub21_program_urgent_watermarks(
+void hubbub21_program_urgent_watermarks(
struct hubbub *hubbub,
struct dcn_watermark_set *watermarks,
unsigned int refclk_mhz,
@@ -160,6 +160,13 @@ static void hubbub21_program_urgent_watermarks(
REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_A, 0,
DCHUBBUB_ARB_FRAC_URG_BW_NOM_A, watermarks->a.frac_urg_bw_nom);
}
+ if (safe_to_lower || watermarks->a.urgent_latency_ns > hubbub1->watermarks.a.urgent_latency_ns) {
+ hubbub1->watermarks.a.urgent_latency_ns = watermarks->a.urgent_latency_ns;
+ prog_wm_value = convert_and_clamp(watermarks->a.urgent_latency_ns,
+ refclk_mhz, 0x1fffff);
+ REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, 0,
+ DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, prog_wm_value);
+ }
/* clock state B */
if (safe_to_lower || watermarks->b.urgent_ns > hubbub1->watermarks.b.urgent_ns) {
@@ -192,6 +199,14 @@ static void hubbub21_program_urgent_watermarks(
DCHUBBUB_ARB_FRAC_URG_BW_NOM_B, watermarks->a.frac_urg_bw_nom);
}
+ if (safe_to_lower || watermarks->b.urgent_latency_ns > hubbub1->watermarks.b.urgent_latency_ns) {
+ hubbub1->watermarks.b.urgent_latency_ns = watermarks->b.urgent_latency_ns;
+ prog_wm_value = convert_and_clamp(watermarks->b.urgent_latency_ns,
+ refclk_mhz, 0x1fffff);
+ REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, 0,
+ DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, prog_wm_value);
+ }
+
/* clock state C */
if (safe_to_lower || watermarks->c.urgent_ns > hubbub1->watermarks.c.urgent_ns) {
hubbub1->watermarks.c.urgent_ns = watermarks->c.urgent_ns;
@@ -223,6 +238,14 @@ static void hubbub21_program_urgent_watermarks(
DCHUBBUB_ARB_FRAC_URG_BW_NOM_C, watermarks->a.frac_urg_bw_nom);
}
+ if (safe_to_lower || watermarks->c.urgent_latency_ns > hubbub1->watermarks.c.urgent_latency_ns) {
+ hubbub1->watermarks.c.urgent_latency_ns = watermarks->c.urgent_latency_ns;
+ prog_wm_value = convert_and_clamp(watermarks->c.urgent_latency_ns,
+ refclk_mhz, 0x1fffff);
+ REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, 0,
+ DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, prog_wm_value);
+ }
+
/* clock state D */
if (safe_to_lower || watermarks->d.urgent_ns > hubbub1->watermarks.d.urgent_ns) {
hubbub1->watermarks.d.urgent_ns = watermarks->d.urgent_ns;
@@ -253,9 +276,17 @@ static void hubbub21_program_urgent_watermarks(
REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_D, 0,
DCHUBBUB_ARB_FRAC_URG_BW_NOM_D, watermarks->a.frac_urg_bw_nom);
}
+
+ if (safe_to_lower || watermarks->d.urgent_latency_ns > hubbub1->watermarks.d.urgent_latency_ns) {
+ hubbub1->watermarks.d.urgent_latency_ns = watermarks->d.urgent_latency_ns;
+ prog_wm_value = convert_and_clamp(watermarks->d.urgent_latency_ns,
+ refclk_mhz, 0x1fffff);
+ REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, 0,
+ DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, prog_wm_value);
+ }
}
-static void hubbub21_program_stutter_watermarks(
+void hubbub21_program_stutter_watermarks(
struct hubbub *hubbub,
struct dcn_watermark_set *watermarks,
unsigned int refclk_mhz,
@@ -389,7 +420,7 @@ static void hubbub21_program_stutter_watermarks(
}
}
-static void hubbub21_program_pstate_watermarks(
+void hubbub21_program_pstate_watermarks(
struct hubbub *hubbub,
struct dcn_watermark_set *watermarks,
unsigned int refclk_mhz,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.h b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.h
index 6ff3cdb89178..698c470cc0f6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.h
@@ -114,11 +114,28 @@
HUBBUB_SF(DCN_VM_AGP_BASE, AGP_BASE, mask_sh)
void dcn21_dchvm_init(struct hubbub *hubbub);
+int hubbub21_init_dchub(struct hubbub *hubbub,
+ struct dcn_hubbub_phys_addr_config *pa_config);
void hubbub21_program_watermarks(
struct hubbub *hubbub,
struct dcn_watermark_set *watermarks,
unsigned int refclk_mhz,
bool safe_to_lower);
+void hubbub21_program_urgent_watermarks(
+ struct hubbub *hubbub,
+ struct dcn_watermark_set *watermarks,
+ unsigned int refclk_mhz,
+ bool safe_to_lower);
+void hubbub21_program_stutter_watermarks(
+ struct hubbub *hubbub,
+ struct dcn_watermark_set *watermarks,
+ unsigned int refclk_mhz,
+ bool safe_to_lower);
+void hubbub21_program_pstate_watermarks(
+ struct hubbub *hubbub,
+ struct dcn_watermark_set *watermarks,
+ unsigned int refclk_mhz,
+ bool safe_to_lower);
void hubbub21_wm_read_state(struct hubbub *hubbub,
struct dcn_hubbub_wm *wm);
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h b/drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h
index e8668388581b..67b610d6d91f 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h
@@ -43,6 +43,7 @@ struct dcn_watermarks {
#if defined(CONFIG_DRM_AMD_DC_DCN2_1)
uint32_t frac_urg_bw_nom;
uint32_t frac_urg_bw_flip;
+ int32_t urgent_latency_ns;
#endif
struct cstate_pstate_watermarks_st cstate_pstate;
};
--
2.17.1
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