[PATCH 20/43] drm/amd/display: Implement WM table transfer for DCN32/DCN321

[Alex Deucher]

From: Alvin Lee <alvin.lee2 at amd.com>

Add support for watermark table transfers.

Signed-off-by: Alvin Lee <alvin.lee2 at amd.com>
Acked-by: Jerry Zuo <jerry.zuo at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 .../gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index 4ff12b816614..93fbecbc8065 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -444,6 +444,7 @@ void dcn32_clock_read_ss_info(struct clk_mgr_internal *clk_mgr)
 }
 static void dcn32_notify_wm_ranges(struct clk_mgr *clk_mgr_base)
 {
+	unsigned int i;
 	struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
 	WatermarksExternal_t *table = (WatermarksExternal_t *) clk_mgr->wm_range_table;
 
@@ -455,6 +456,12 @@ static void dcn32_notify_wm_ranges(struct clk_mgr *clk_mgr_base)
 
 	memset(table, 0, sizeof(*table));
 
+	/* collect valid ranges, place in pmfw table */
+	for (i = 0; i < WM_SET_COUNT; i++)
+		if (clk_mgr->base.bw_params->wm_table.nv_entries[i].valid) {
+			table->Watermarks.WatermarkRow[i].WmSetting = i;
+			table->Watermarks.WatermarkRow[i].Flags = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.wm_type;
+		}
 	dcn30_smu_set_dram_addr_high(clk_mgr, clk_mgr->wm_range_table_addr >> 32);
 	dcn30_smu_set_dram_addr_low(clk_mgr, clk_mgr->wm_range_table_addr & 0xFFFFFFFF);
 	dcn32_smu_transfer_wm_table_dram_2_smu(clk_mgr);
-- 
2.35.3