[PATCH 27/27] drm/amd/display: disable dcc when reset front end.

[Harry Wentland]

From: Yongqiang Sun <yongqiang.sun at amd.com>

Change-Id: Ief8354f612161481cd303512fa41001376504f81
Signed-off-by: Yongqiang Sun <yongqiang.sun at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c |  2 ++
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c    | 15 +++++++++++----
 drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h         |  3 +++
 3 files changed, 16 insertions(+), 4 deletions(-)

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 93a34e2ef175..f2b581faa9b7 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
@@ -825,6 +825,8 @@ static void reset_front_end_for_pipe(
 	if (!pipe_ctx->surface)
 		return;
 
+	pipe_ctx->mi->funcs->dcc_control(pipe_ctx->mi, false, false);
+
 	lock_otg_master_update(dc->ctx, pipe_ctx->tg->inst);
 
 	/* TODO: build stream pipes group id. For now, use stream otg
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c
index 8ad70625a746..a58993aa400f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mem_input.c
@@ -369,16 +369,22 @@ static bool mem_input_program_surface_flip_and_addr(
 	return true;
 }
 
-static void program_control(struct dcn10_mem_input *mi,
-		struct dc_plane_dcc_param *dcc)
+static void dcc_control(struct mem_input *mem_input, bool enable,
+		bool independent_64b_blks)
 {
-	uint32_t dcc_en = dcc->enable ? 1 : 0;
-	uint32_t dcc_ind_64b_blk = dcc->grph.independent_64b_blks ? 1 : 0;
+	uint32_t dcc_en = enable ? 1 : 0;
+	uint32_t dcc_ind_64b_blk = independent_64b_blks ? 1 : 0;
+	struct dcn10_mem_input *mi = TO_DCN10_MEM_INPUT(mem_input);
 
 	REG_UPDATE_2(DCSURF_SURFACE_CONTROL,
 			PRIMARY_SURFACE_DCC_EN, dcc_en,
 			PRIMARY_SURFACE_DCC_IND_64B_BLK, dcc_ind_64b_blk);
+}
 
+static void program_control(struct dcn10_mem_input *mi,
+		struct dc_plane_dcc_param *dcc)
+{
+	dcc_control(&mi->base, dcc->enable, dcc->grph.independent_64b_blks);
 }
 
 static void mem_input_program_surface_config(
@@ -1072,6 +1078,7 @@ static struct mem_input_funcs dcn10_mem_input_funcs = {
 	.mem_input_update_dchub = mem_input_update_dchub,
 	.mem_input_program_pte_vm = dcn_mem_input_program_pte_vm,
 	.set_blank = dcn_mi_set_blank,
+	.dcc_control = dcc_control,
 };
 
 
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 bd0dfeb2afa2..64b810d48d07 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
@@ -86,6 +86,9 @@ struct mem_input_funcs {
 			struct _vcs_dpi_display_ttu_regs_st *ttu_regs,
 			struct _vcs_dpi_display_rq_regs_st *rq_regs,
 			struct _vcs_dpi_display_pipe_dest_params_st *pipe_dest);
+
+	void (*dcc_control)(struct mem_input *mem_input, bool enable,
+			bool independent_64b_blks);
 #endif
 
 	void (*mem_input_program_display_marks)(
-- 
2.11.0