The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <sta...@vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
>From 4ba9ca63e696f7bdc91293aeb70c22203b7089be Mon Sep 17 00:00:00 2001
From: Fangzhi Zuo <jerry....@amd.com>
Date: Thu, 11 Jan 2024 14:46:01 -0500
Subject: [PATCH] drm/amd/display: Fix dcn35 8k30 Underflow/Corruption Issue
[why]
odm calculation is missing for pipe split policy determination
and cause Underflow/Corruption issue.
[how]
Add the odm calculation.
Cc: Mario Limonciello <mario.limoncie...@amd.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: sta...@vger.kernel.org
Reviewed-by: Charlene Liu <charlene....@amd.com>
Acked-by: Tom Chung <chiahsuan.ch...@amd.com>
Signed-off-by: Fangzhi Zuo <jerry....@amd.com>
Tested-by: Daniel Wheeler <daniel.whee...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
.../display/dc/dml2/dml2_translation_helper.c | 29 +++++++------------
.../gpu/drm/amd/display/dc/inc/core_types.h | 2 ++
2 files changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
index 8b0f930be5ae1..23a608274096f 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
@@ -791,35 +791,28 @@ static void
populate_dml_surface_cfg_from_plane_state(enum dml_project_id dml2_p
}
}
-/*TODO no support for mpc combine, need rework - should calculate scaling
params based on plane+stream*/
-static struct scaler_data get_scaler_data_for_plane(const struct
dc_plane_state *in, const struct dc_state *context)
+static struct scaler_data get_scaler_data_for_plane(const struct
dc_plane_state *in, struct dc_state *context)
{
int i;
- struct scaler_data data = { 0 };
+ struct pipe_ctx *temp_pipe = &context->res_ctx.temp_pipe;
+
+ memset(temp_pipe, 0, sizeof(struct pipe_ctx));
for (i = 0; i < MAX_PIPES; i++) {
const struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
if (pipe->plane_state == in && !pipe->prev_odm_pipe) {
- const struct pipe_ctx *next_pipe = pipe->next_odm_pipe;
-
- data = context->res_ctx.pipe_ctx[i].plane_res.scl_data;
- while (next_pipe) {
- data.h_active +=
next_pipe->plane_res.scl_data.h_active;
- data.recout.width +=
next_pipe->plane_res.scl_data.recout.width;
- if (in->rotation == ROTATION_ANGLE_0 ||
in->rotation == ROTATION_ANGLE_180) {
- data.viewport.width +=
next_pipe->plane_res.scl_data.viewport.width;
- } else {
- data.viewport.height +=
next_pipe->plane_res.scl_data.viewport.height;
- }
- next_pipe = next_pipe->next_odm_pipe;
- }
+ temp_pipe->stream = pipe->stream;
+ temp_pipe->plane_state = pipe->plane_state;
+ temp_pipe->plane_res.scl_data.taps =
pipe->plane_res.scl_data.taps;
+
+ resource_build_scaling_params(temp_pipe);
break;
}
}
ASSERT(i < MAX_PIPES);
- return data;
+ return temp_pipe->plane_res.scl_data;
}
static void populate_dummy_dml_plane_cfg(struct dml_plane_cfg_st *out,
unsigned int location, const struct dc_stream_state *in)
@@ -864,7 +857,7 @@ static void populate_dummy_dml_plane_cfg(struct
dml_plane_cfg_st *out, unsigned
out->ScalerEnabled[location] = false;
}
-static void populate_dml_plane_cfg_from_plane_state(struct dml_plane_cfg_st
*out, unsigned int location, const struct dc_plane_state *in, const struct
dc_state *context)
+static void populate_dml_plane_cfg_from_plane_state(struct dml_plane_cfg_st
*out, unsigned int location, const struct dc_plane_state *in, struct dc_state
*context)
{
const struct scaler_data scaler_data = get_scaler_data_for_plane(in,
context);
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
index f74ae0d41d3c4..3a6bf77a68732 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -469,6 +469,8 @@ struct resource_context {
unsigned int hpo_dp_link_enc_to_link_idx[MAX_HPO_DP2_LINK_ENCODERS];
int hpo_dp_link_enc_ref_cnts[MAX_HPO_DP2_LINK_ENCODERS];
bool is_mpc_3dlut_acquired[MAX_PIPES];
+ /* solely used for build scalar data in dml2 */
+ struct pipe_ctx temp_pipe;
};
struct dce_bw_output {
--
2.43.0
