From: Dillon Varone <Dillon.Varone@amd.com>
Date: Wed, 21 Sep 2022 00:50:49 +0000 (-0400)
Subject: drm/amd/display: Increase compbuf size prior to updating clocks
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b808a7eb30b02e05023b505fe6db590ba799683f;p=linux.git

drm/amd/display: Increase compbuf size prior to updating clocks

[WHY?]
Clocks are updating based on the incoming context's support, however the new
compbuf size is not programmed prior to udpating clocks, which can result in
P-State hangs.

[HOW?]
Increase compbuf size prior to updating clocks.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index e1d271fe9e641..7de511fd004b5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -2018,6 +2018,10 @@ void dcn20_optimize_bandwidth(
 				context->bw_ctx.bw.dcn.clk.dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000)
 			dc->clk_mgr->funcs->set_max_memclk(dc->clk_mgr, dc->clk_mgr->bw_params->dc_mode_softmax_memclk);
 
+	/* increase compbuf size */
+	if (hubbub->funcs->program_compbuf_size)
+		hubbub->funcs->program_compbuf_size(hubbub, context->bw_ctx.bw.dcn.compbuf_size_kb, true);
+
 	dc->clk_mgr->funcs->update_clocks(
 			dc->clk_mgr,
 			context,
@@ -2033,9 +2037,6 @@ void dcn20_optimize_bandwidth(
 						pipe_ctx->dlg_regs.optimized_min_dst_y_next_start);
 		}
 	}
-	/* increase compbuf size */
-	if (hubbub->funcs->program_compbuf_size)
-		hubbub->funcs->program_compbuf_size(hubbub, context->bw_ctx.bw.dcn.compbuf_size_kb, true);
 }
 
 bool dcn20_update_bandwidth(