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Message-ID: <20240327121712.2833358-1-sashal@kernel.org>
Date: Wed, 27 Mar 2024 08:17:12 -0400
From: Sasha Levin <sashal@...nel.org>
To: stable@...r.kernel.org,
chuntao.tso@....com
Cc: Mario Limonciello <mario.limonciello@....com>,
Alex Deucher <alexander.deucher@....com>,
Alvin Lee <alvin.lee2@....com>,
Alex Hung <alex.hung@....com>,
Daniel Wheeler <daniel.wheeler@....com>,
amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: FAILED: Patch "drm/amd/display: Amend coasting vtotal for replay low hz" failed to apply to 5.15-stable tree
The patch below does not apply to the 5.15-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 <stable@...r.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
>From 8e054b0f1e71531762b8ded7f66c1b4af734671b Mon Sep 17 00:00:00 2001
From: ChunTao Tso <chuntao.tso@....com>
Date: Tue, 20 Feb 2024 17:08:39 +0800
Subject: [PATCH] drm/amd/display: Amend coasting vtotal for replay low hz
[WHY]
The original coasting vtotal is 2 bytes, and it need to
be amended to 4 bytes because low hz case.
[HOW]
Amend coasting vtotal from 2 bytes to 4 bytes.
Cc: Mario Limonciello <mario.limonciello@....com>
Cc: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Reviewed-by: Alvin Lee <alvin.lee2@....com>
Acked-by: Alex Hung <alex.hung@....com>
Signed-off-by: ChunTao Tso <chuntao.tso@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
---
drivers/gpu/drm/amd/display/dc/dc_types.h | 4 ++--
drivers/gpu/drm/amd/display/dc/inc/link.h | 4 ++--
.../display/dc/link/protocols/link_edp_panel_control.c | 4 ++--
.../display/dc/link/protocols/link_edp_panel_control.h | 4 ++--
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 8 ++++++++
drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 2 +-
drivers/gpu/drm/amd/display/modules/power/power_helpers.h | 2 +-
7 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 9900dda2eef5c..be2ac5c442a48 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -1085,9 +1085,9 @@ struct replay_settings {
/* SMU optimization is enabled */
bool replay_smu_opt_enable;
/* Current Coasting vtotal */
- uint16_t coasting_vtotal;
+ uint32_t coasting_vtotal;
/* Coasting vtotal table */
- uint16_t coasting_vtotal_table[PR_COASTING_TYPE_NUM];
+ uint32_t coasting_vtotal_table[PR_COASTING_TYPE_NUM];
/* Maximum link off frame count */
enum replay_link_off_frame_count_level link_off_frame_count_level;
/* Replay pseudo vtotal for abm + ips on full screen video which can improve ips residency */
diff --git a/drivers/gpu/drm/amd/display/dc/inc/link.h b/drivers/gpu/drm/amd/display/dc/inc/link.h
index 26fe81f213da5..bf29fc58ea6a6 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/link.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/link.h
@@ -285,12 +285,12 @@ struct link_service {
enum replay_FW_Message_type msg,
union dmub_replay_cmd_set *cmd_data);
bool (*edp_set_coasting_vtotal)(
- struct dc_link *link, uint16_t coasting_vtotal);
+ struct dc_link *link, uint32_t coasting_vtotal);
bool (*edp_replay_residency)(const struct dc_link *link,
unsigned int *residency, const bool is_start,
const bool is_alpm);
bool (*edp_set_replay_power_opt_and_coasting_vtotal)(struct dc_link *link,
- const unsigned int *power_opts, uint16_t coasting_vtotal);
+ const unsigned int *power_opts, uint32_t coasting_vtotal);
bool (*edp_wait_for_t12)(struct dc_link *link);
bool (*edp_is_ilr_optimization_required)(struct dc_link *link,
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
index acfbbc638cc64..3baa2bdd6dd65 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
@@ -1034,7 +1034,7 @@ bool edp_send_replay_cmd(struct dc_link *link,
return true;
}
-bool edp_set_coasting_vtotal(struct dc_link *link, uint16_t coasting_vtotal)
+bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal)
{
struct dc *dc = link->ctx->dc;
struct dmub_replay *replay = dc->res_pool->replay;
@@ -1073,7 +1073,7 @@ bool edp_replay_residency(const struct dc_link *link,
}
bool edp_set_replay_power_opt_and_coasting_vtotal(struct dc_link *link,
- const unsigned int *power_opts, uint16_t coasting_vtotal)
+ const unsigned int *power_opts, uint32_t coasting_vtotal)
{
struct dc *dc = link->ctx->dc;
struct dmub_replay *replay = dc->res_pool->replay;
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h
index 34e521af7bb48..a158c6234d422 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h
@@ -59,12 +59,12 @@ bool edp_setup_replay(struct dc_link *link,
bool edp_send_replay_cmd(struct dc_link *link,
enum replay_FW_Message_type msg,
union dmub_replay_cmd_set *cmd_data);
-bool edp_set_coasting_vtotal(struct dc_link *link, uint16_t coasting_vtotal);
+bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal);
bool edp_replay_residency(const struct dc_link *link,
unsigned int *residency, const bool is_start, const bool is_alpm);
bool edp_get_replay_state(const struct dc_link *link, uint64_t *state);
bool edp_set_replay_power_opt_and_coasting_vtotal(struct dc_link *link,
- const unsigned int *power_opts, uint16_t coasting_vtotal);
+ const unsigned int *power_opts, uint32_t coasting_vtotal);
bool edp_wait_for_t12(struct dc_link *link);
bool edp_is_ilr_optimization_required(struct dc_link *link,
struct dc_crtc_timing *crtc_timing);
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index a529e369b2ace..af3fe8bb0728b 100644
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -3238,6 +3238,14 @@ struct dmub_cmd_replay_set_coasting_vtotal_data {
* Currently the support is only for 0 or 1
*/
uint8_t panel_inst;
+ /**
+ * 16-bit value dicated by driver that indicates the coasting vtotal high byte part.
+ */
+ uint16_t coasting_vtotal_high;
+ /**
+ * Explicit padding to 4 byte boundary.
+ */
+ uint8_t pad[2];
};
/**
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index e304e8435fb8f..2a3698fd2dc24 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -975,7 +975,7 @@ bool psr_su_set_dsc_slice_height(struct dc *dc, struct dc_link *link,
void set_replay_coasting_vtotal(struct dc_link *link,
enum replay_coasting_vtotal_type type,
- uint16_t vtotal)
+ uint32_t vtotal)
{
link->replay_settings.coasting_vtotal_table[type] = vtotal;
}
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
index bef4815e1703d..ff7e6f3cd6be2 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
@@ -56,7 +56,7 @@ bool dmub_init_abm_config(struct resource_pool *res_pool,
void init_replay_config(struct dc_link *link, struct replay_config *pr_config);
void set_replay_coasting_vtotal(struct dc_link *link,
enum replay_coasting_vtotal_type type,
- uint16_t vtotal);
+ uint32_t vtotal);
void set_replay_ips_full_screen_video_src_vtotal(struct dc_link *link, uint16_t vtotal);
void calculate_replay_link_off_frame_count(struct dc_link *link,
uint16_t vtotal, uint16_t htotal);
--
2.43.0
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