[PATCH 28/37] drm/amd/display: move wm ranges reporting to end of init hw
sunpeng.li at amd.com
sunpeng.li at amd.com
Thu Oct 17 19:13:20 UTC 2019
From: Eric Yang <Eric.Yang2 at amd.com>
[Why]
SMU does not keep the wm table across S3, S4, need to re-send
the table. Also defer sending the cable to after DCN bave initialized
[How]
Send table at end of init hw
Signed-off-by: Eric Yang <Eric.Yang2 at amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun at amd.com>
Acked-by: Leo Li <sunpeng.li at amd.com>
---
.../amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 149 +++++++++---------
.../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 4 +
.../gpu/drm/amd/display/dc/inc/hw/clk_mgr.h | 1 +
3 files changed, 81 insertions(+), 73 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index e8b8ee4f1b1e..f64d221ad6f1 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -396,12 +396,87 @@ void rn_init_clocks(struct clk_mgr *clk_mgr)
clk_mgr->clks.pwr_state = DCN_PWR_STATE_UNKNOWN;
}
+void build_watermark_ranges(struct clk_bw_params *bw_params, struct pp_smu_wm_range_sets *ranges)
+{
+ int i, num_valid_sets;
+
+ num_valid_sets = 0;
+
+ for (i = 0; i < WM_SET_COUNT; i++) {
+ /* skip empty entries, the smu array has no holes*/
+ if (!bw_params->wm_table.entries[i].valid)
+ continue;
+
+ ranges->reader_wm_sets[num_valid_sets].wm_inst = bw_params->wm_table.entries[i].wm_inst;
+ ranges->reader_wm_sets[num_valid_sets].wm_type = bw_params->wm_table.entries[i].wm_type;;
+ /* We will not select WM based on dcfclk, so leave it as unconstrained */
+ ranges->reader_wm_sets[num_valid_sets].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->reader_wm_sets[num_valid_sets].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+ /* fclk wil be used to select WM*/
+
+ if (ranges->reader_wm_sets[num_valid_sets].wm_type == WM_TYPE_PSTATE_CHG) {
+ if (i == 0)
+ ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = 0;
+ else {
+ /* add 1 to make it non-overlapping with next lvl */
+ ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = bw_params->clk_table.entries[i - 1].fclk_mhz + 1;
+ }
+ ranges->reader_wm_sets[num_valid_sets].max_fill_clk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
+
+ } else {
+ /* unconstrained for memory retraining */
+ ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->reader_wm_sets[num_valid_sets].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+
+ /* Modify previous watermark range to cover up to max */
+ ranges->reader_wm_sets[num_valid_sets - 1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+ }
+ num_valid_sets++;
+ }
+
+ ASSERT(num_valid_sets != 0); /* Must have at least one set of valid watermarks */
+ ranges->num_reader_wm_sets = num_valid_sets;
+
+ /* modify the min and max to make sure we cover the whole range*/
+ ranges->reader_wm_sets[0].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->reader_wm_sets[0].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->reader_wm_sets[ranges->num_reader_wm_sets - 1].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+ ranges->reader_wm_sets[ranges->num_reader_wm_sets - 1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+
+ /* This is for writeback only, does not matter currently as no writeback support*/
+ ranges->num_writer_wm_sets = 1;
+ ranges->writer_wm_sets[0].wm_inst = WM_A;
+ ranges->writer_wm_sets[0].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->writer_wm_sets[0].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+ ranges->writer_wm_sets[0].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
+ ranges->writer_wm_sets[0].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+
+}
+
+static void rn_notify_wm_ranges(struct clk_mgr *clk_mgr_base)
+{
+ struct dc_debug_options *debug = &clk_mgr_base->ctx->dc->debug;
+ struct pp_smu_wm_range_sets ranges = {0};
+ struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
+ struct pp_smu_funcs *pp_smu = clk_mgr->pp_smu;
+
+ if (!debug->disable_pplib_wm_range) {
+ build_watermark_ranges(clk_mgr_base->bw_params, &ranges);
+
+ /* Notify PP Lib/SMU which Watermarks to use for which clock ranges */
+ if (pp_smu && pp_smu->rn_funcs.set_wm_ranges)
+ pp_smu->rn_funcs.set_wm_ranges(&pp_smu->rn_funcs.pp_smu, &ranges);
+ }
+
+}
+
static struct clk_mgr_funcs dcn21_funcs = {
.get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz,
.update_clocks = rn_update_clocks,
.init_clocks = rn_init_clocks,
.enable_pme_wa = rn_enable_pme_wa,
- /* .dump_clk_registers = rn_dump_clk_registers */
+ /* .dump_clk_registers = rn_dump_clk_registers, */
+ .notify_wm_ranges = rn_notify_wm_ranges
};
struct clk_bw_params rn_bw_params = {
@@ -472,63 +547,6 @@ struct clk_bw_params rn_bw_params = {
}
};
-static void rn_build_watermark_ranges(struct clk_bw_params *bw_params, struct pp_smu_wm_range_sets *ranges)
-{
- int i, num_valid_sets;
-
- num_valid_sets = 0;
-
- for (i = 0; i < WM_SET_COUNT; i++) {
- /* skip empty entries, the smu array has no holes*/
- if (!bw_params->wm_table.entries[i].valid)
- continue;
-
- ranges->reader_wm_sets[num_valid_sets].wm_inst = bw_params->wm_table.entries[i].wm_inst;
- ranges->reader_wm_sets[num_valid_sets].wm_type = bw_params->wm_table.entries[i].wm_type;;
- /* We will not select WM based on dcfclk, so leave it as unconstrained */
- ranges->reader_wm_sets[num_valid_sets].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->reader_wm_sets[num_valid_sets].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
- /* fclk wil be used to select WM*/
-
- if (ranges->reader_wm_sets[num_valid_sets].wm_type == WM_TYPE_PSTATE_CHG) {
- if (i == 0)
- ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = 0;
- else {
- /* add 1 to make it non-overlapping with next lvl */
- ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = bw_params->clk_table.entries[i - 1].fclk_mhz + 1;
- }
- ranges->reader_wm_sets[num_valid_sets].max_fill_clk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
-
- } else {
- /* unconstrained for memory retraining */
- ranges->reader_wm_sets[num_valid_sets].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->reader_wm_sets[num_valid_sets].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
-
- /* Modify previous watermark range to cover up to max */
- ranges->reader_wm_sets[num_valid_sets - 1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
- }
- num_valid_sets++;
- }
-
- ASSERT(num_valid_sets != 0); /* Must have at least one set of valid watermarks */
- ranges->num_reader_wm_sets = num_valid_sets;
-
- /* modify the min and max to make sure we cover the whole range*/
- ranges->reader_wm_sets[0].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->reader_wm_sets[0].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->reader_wm_sets[ranges->num_reader_wm_sets - 1].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
- ranges->reader_wm_sets[ranges->num_reader_wm_sets - 1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
-
- /* This is for writeback only, does not matter currently as no writeback support*/
- ranges->num_writer_wm_sets = 1;
- ranges->writer_wm_sets[0].wm_inst = WM_A;
- ranges->writer_wm_sets[0].min_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->writer_wm_sets[0].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
- ranges->writer_wm_sets[0].min_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MIN;
- ranges->writer_wm_sets[0].max_drain_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
-
-}
-
static unsigned int find_dcfclk_for_voltage(struct dpm_clocks *clock_table, unsigned int voltage)
{
int i;
@@ -661,21 +679,6 @@ void rn_clk_mgr_construct(
rn_clk_mgr_helper_populate_bw_params(clk_mgr->base.bw_params, &clock_table, &ctx->asic_id);
}
- /*
- * Notify SMU which set of WM should be selected for different ranges of fclk
- * On Renoir there is a maximumum of 4 DF pstates supported, could be less
- * depending on DDR speed and fused maximum fclk.
- */
- if (!debug->disable_pplib_wm_range) {
- struct pp_smu_wm_range_sets ranges = {0};
-
- rn_build_watermark_ranges(clk_mgr->base.bw_params, &ranges);
-
- /* Notify PP Lib/SMU which Watermarks to use for which clock ranges */
- if (pp_smu && pp_smu->rn_funcs.set_wm_ranges)
- pp_smu->rn_funcs.set_wm_ranges(&pp_smu->rn_funcs.pp_smu, &ranges);
- }
-
if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment) && clk_mgr->smu_ver >= 0x00371500) {
/* enable powerfeatures when displaycount goes to 0 */
rn_vbios_smu_enable_48mhz_tmdp_refclk_pwrdwn(clk_mgr, !debug->disable_48mhz_pwrdwn);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index df1be8ada66d..eb91432621ab 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1304,6 +1304,10 @@ static void dcn10_init_hw(struct dc *dc)
}
dc->hwss.enable_power_gating_plane(dc->hwseq, true);
+
+ if (dc->clk_mgr->funcs->notify_wm_ranges)
+ dc->clk_mgr->funcs->notify_wm_ranges(dc->clk_mgr);
+
}
static void dcn10_reset_hw_ctx_wrap(
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
index da43523a7bfe..4e18e77dcf42 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
@@ -183,6 +183,7 @@ struct clk_mgr_funcs {
bool (*are_clock_states_equal) (struct dc_clocks *a,
struct dc_clocks *b);
+ void (*notify_wm_ranges)(struct clk_mgr *clk_mgr);
};
struct clk_mgr {
--
2.23.0
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