* [PATCH 03/21] drm/amd/display: set odm_combine_policy based on context in dcn32 resource
[not found] <20240131201220.19106-1-hamza.mahfooz@amd.com>
@ 2024-01-31 20:11 ` Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 05/21] drm/amd/display: Add more checks for exiting idle in DC Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 16/21] drm/amd/display: Update phantom pipe enable / disable sequence Hamza Mahfooz
2 siblings, 0 replies; 3+ messages in thread
From: Hamza Mahfooz @ 2024-01-31 20:11 UTC (permalink / raw
To: amd-gfx
Cc: Harry.Wentland, Sunpeng.Li, Rodrigo.Siqueira, Aurabindo.Pillai,
roman.li, wayne.lin, agustin.gutierrez, chiahsuan.chung,
hersenxs.wu, jerry.zuo, Wenjing Liu, stable, Chaitanya Dhere,
Alvin Lee, Hamza Mahfooz
From: Wenjing Liu <wenjing.liu@amd.com>
[why]
When populating dml pipes, odm combine policy should be assigned based
on the pipe topology of the context passed in. DML pipes could be
repopulated multiple times during single validate bandwidth attempt. We
need to make sure that whenever we repopulate the dml pipes it is always
aligned with the updated context. There is a case where DML pipes get
repopulated during FPO optimization after ODM combine policy is changed.
Since in the current code we reinitlaize ODM combine policy, even though
the current context has ODM combine enabled, we overwrite it despite the
pipes are already split. This causes DML to think that MPC combine is
used so we mistakenly enable MPC combine because we apply pipe split
with ODM combine policy reset. This issue doesn't impact non windowed
MPO with ODM case because the legacy policy has restricted use cases. We
don't encounter the case where both ODM and FPO optimizations are
enabled together. So we decide to leave it as is because it is about to
be replaced anyway.
Cc: stable@vger.kernel.org # 6.6+
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
---
.../drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 15 ++++++++++----
drivers/gpu/drm/amd/display/dc/inc/resource.h | 20 ++++++++-----------
.../dc/resource/dcn32/dcn32_resource.c | 16 ++++++++++++++-
3 files changed, 34 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index a7981a0c4158..4edf7df4c6aa 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -1289,7 +1289,7 @@ static bool update_pipes_with_split_flags(struct dc *dc, struct dc_state *contex
return updated;
}
-static bool should_allow_odm_power_optimization(struct dc *dc,
+static bool should_apply_odm_power_optimization(struct dc *dc,
struct dc_state *context, struct vba_vars_st *v, int *split,
bool *merge)
{
@@ -1393,9 +1393,12 @@ static void try_odm_power_optimization_and_revalidate(
{
int i;
unsigned int new_vlevel;
+ unsigned int cur_policy[MAX_PIPES];
- for (i = 0; i < pipe_cnt; i++)
+ for (i = 0; i < pipe_cnt; i++) {
+ cur_policy[i] = pipes[i].pipe.dest.odm_combine_policy;
pipes[i].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;
+ }
new_vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
@@ -1404,6 +1407,9 @@ static void try_odm_power_optimization_and_revalidate(
memset(merge, 0, MAX_PIPES * sizeof(bool));
*vlevel = dcn20_validate_apply_pipe_split_flags(dc, context, new_vlevel, split, merge);
context->bw_ctx.dml.vba.VoltageLevel = *vlevel;
+ } else {
+ for (i = 0; i < pipe_cnt; i++)
+ pipes[i].pipe.dest.odm_combine_policy = cur_policy[i];
}
}
@@ -1581,7 +1587,7 @@ static void dcn32_full_validate_bw_helper(struct dc *dc,
}
}
- if (should_allow_odm_power_optimization(dc, context, vba, split, merge))
+ if (should_apply_odm_power_optimization(dc, context, vba, split, merge))
try_odm_power_optimization_and_revalidate(
dc, context, pipes, split, merge, vlevel, *pipe_cnt);
@@ -2210,7 +2216,8 @@ bool dcn32_internal_validate_bw(struct dc *dc,
int i;
pipe_cnt = dc->res_pool->funcs->populate_dml_pipes(dc, context, pipes, fast_validate);
- dcn32_update_dml_pipes_odm_policy_based_on_context(dc, context, pipes);
+ if (!dc->config.enable_windowed_mpo_odm)
+ dcn32_update_dml_pipes_odm_policy_based_on_context(dc, context, pipes);
/* repopulate_pipes = 1 means the pipes were either split or merged. In this case
* we have to re-calculate the DET allocation and run through DML once more to
diff --git a/drivers/gpu/drm/amd/display/dc/inc/resource.h b/drivers/gpu/drm/amd/display/dc/inc/resource.h
index 1d51fed12e20..2eae2f3e846d 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/resource.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/resource.h
@@ -427,22 +427,18 @@ struct pipe_ctx *resource_get_primary_dpp_pipe(const struct pipe_ctx *dpp_pipe);
int resource_get_mpc_slice_index(const struct pipe_ctx *dpp_pipe);
/*
- * Get number of MPC "cuts" of the plane associated with the pipe. MPC slice
- * count is equal to MPC splits + 1. For example if a plane is cut 3 times, it
- * will have 4 pieces of slice.
- * return - 0 if pipe is not used for a plane with MPCC combine. otherwise
- * the number of MPC "cuts" for the plane.
+ * Get the number of MPC slices associated with the pipe.
+ * The function returns 0 if the pipe is not associated with an MPC combine
+ * pipe topology.
*/
-int resource_get_mpc_slice_count(const struct pipe_ctx *opp_head);
+int resource_get_mpc_slice_count(const struct pipe_ctx *pipe);
/*
- * Get number of ODM "cuts" of the timing associated with the pipe. ODM slice
- * count is equal to ODM splits + 1. For example if a timing is cut 3 times, it
- * will have 4 pieces of slice.
- * return - 0 if pipe is not used for ODM combine. otherwise
- * the number of ODM "cuts" for the timing.
+ * Get the number of ODM slices associated with the pipe.
+ * The function returns 0 if the pipe is not associated with an ODM combine
+ * pipe topology.
*/
-int resource_get_odm_slice_count(const struct pipe_ctx *otg_master);
+int resource_get_odm_slice_count(const struct pipe_ctx *pipe);
/* Get the ODM slice index counting from 0 from left most slice */
int resource_get_odm_slice_index(const struct pipe_ctx *opp_head);
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
index ac04a9c9a3d8..71cd20618bfe 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
@@ -1829,7 +1829,21 @@ int dcn32_populate_dml_pipes_from_context(
dcn32_zero_pipe_dcc_fraction(pipes, pipe_cnt);
DC_FP_END();
pipes[pipe_cnt].pipe.dest.vfront_porch = timing->v_front_porch;
- pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
+ if (dc->config.enable_windowed_mpo_odm &&
+ dc->debug.enable_single_display_2to1_odm_policy) {
+ switch (resource_get_odm_slice_count(pipe)) {
+ case 2:
+ pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;
+ break;
+ case 4:
+ pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_4to1;
+ break;
+ default:
+ pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
+ }
+ } else {
+ pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
+ }
pipes[pipe_cnt].pipe.src.gpuvm_min_page_size_kbytes = 256; // according to spreadsheet
pipes[pipe_cnt].pipe.src.unbounded_req_mode = false;
pipes[pipe_cnt].pipe.scale_ratio_depth.lb_depth = dm_lb_19;
--
2.43.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 05/21] drm/amd/display: Add more checks for exiting idle in DC
[not found] <20240131201220.19106-1-hamza.mahfooz@amd.com>
2024-01-31 20:11 ` [PATCH 03/21] drm/amd/display: set odm_combine_policy based on context in dcn32 resource Hamza Mahfooz
@ 2024-01-31 20:11 ` Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 16/21] drm/amd/display: Update phantom pipe enable / disable sequence Hamza Mahfooz
2 siblings, 0 replies; 3+ messages in thread
From: Hamza Mahfooz @ 2024-01-31 20:11 UTC (permalink / raw
To: amd-gfx
Cc: Harry.Wentland, Sunpeng.Li, Rodrigo.Siqueira, Aurabindo.Pillai,
roman.li, wayne.lin, agustin.gutierrez, chiahsuan.chung,
hersenxs.wu, jerry.zuo, Nicholas Kazlauskas, stable, Ovidiu Bunea,
Hamza Mahfooz
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
[Why]
Any interface that touches registers needs to wake up the system.
[How]
Add a new interface dc_exit_ips_for_hw_access that wraps the check
for IPS support and insert it into the public DC interfaces that
touch registers.
We don't re-enter, since we expect that the enter/exit to have been done
on the DM side.
Cc: stable@vger.kernel.org # 6.1+
Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 42 +++++++++++++++++++
.../gpu/drm/amd/display/dc/core/dc_stream.c | 18 ++++++++
.../gpu/drm/amd/display/dc/core/dc_surface.c | 2 +
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
4 files changed, 63 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 2db361aeaf25..eb803d4d3478 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -417,6 +417,8 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
if (!memcmp(&stream->adjust, adjust, sizeof(*adjust)))
return true;
+ dc_exit_ips_for_hw_access(dc);
+
stream->adjust.v_total_max = adjust->v_total_max;
stream->adjust.v_total_mid = adjust->v_total_mid;
stream->adjust.v_total_mid_frame_num = adjust->v_total_mid_frame_num;
@@ -457,6 +459,8 @@ bool dc_stream_get_last_used_drr_vtotal(struct dc *dc,
int i = 0;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
@@ -487,6 +491,8 @@ bool dc_stream_get_crtc_position(struct dc *dc,
bool ret = false;
struct crtc_position position;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
struct pipe_ctx *pipe =
&dc->current_state->res_ctx.pipe_ctx[i];
@@ -606,6 +612,8 @@ bool dc_stream_configure_crc(struct dc *dc, struct dc_stream_state *stream,
if (pipe == NULL)
return false;
+ dc_exit_ips_for_hw_access(dc);
+
/* By default, capture the full frame */
param.windowa_x_start = 0;
param.windowa_y_start = 0;
@@ -665,6 +673,8 @@ bool dc_stream_get_crc(struct dc *dc, struct dc_stream_state *stream,
struct pipe_ctx *pipe;
struct timing_generator *tg;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
pipe = &dc->current_state->res_ctx.pipe_ctx[i];
if (pipe->stream == stream)
@@ -689,6 +699,8 @@ void dc_stream_set_dyn_expansion(struct dc *dc, struct dc_stream_state *stream,
int i;
struct pipe_ctx *pipe_ctx;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
if (dc->current_state->res_ctx.pipe_ctx[i].stream
== stream) {
@@ -724,6 +736,8 @@ void dc_stream_set_dither_option(struct dc_stream_state *stream,
if (option > DITHER_OPTION_MAX)
return;
+ dc_exit_ips_for_hw_access(stream->ctx->dc);
+
stream->dither_option = option;
memset(¶ms, 0, sizeof(params));
@@ -748,6 +762,8 @@ bool dc_stream_set_gamut_remap(struct dc *dc, const struct dc_stream_state *stre
bool ret = false;
struct pipe_ctx *pipes;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
if (dc->current_state->res_ctx.pipe_ctx[i].stream == stream) {
pipes = &dc->current_state->res_ctx.pipe_ctx[i];
@@ -765,6 +781,8 @@ bool dc_stream_program_csc_matrix(struct dc *dc, struct dc_stream_state *stream)
bool ret = false;
struct pipe_ctx *pipes;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
if (dc->current_state->res_ctx.pipe_ctx[i].stream
== stream) {
@@ -791,6 +809,8 @@ void dc_stream_set_static_screen_params(struct dc *dc,
struct pipe_ctx *pipes_affected[MAX_PIPES];
int num_pipes_affected = 0;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < num_streams; i++) {
struct dc_stream_state *stream = streams[i];
@@ -1769,6 +1789,8 @@ void dc_enable_stereo(
int i, j;
struct pipe_ctx *pipe;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
if (context != NULL) {
pipe = &context->res_ctx.pipe_ctx[i];
@@ -1788,6 +1810,8 @@ void dc_enable_stereo(
void dc_trigger_sync(struct dc *dc, struct dc_state *context)
{
if (context->stream_count > 1 && !dc->debug.disable_timing_sync) {
+ dc_exit_ips_for_hw_access(dc);
+
enable_timing_multisync(dc, context);
program_timing_sync(dc, context);
}
@@ -2044,6 +2068,8 @@ enum dc_status dc_commit_streams(struct dc *dc,
if (!streams_changed(dc, streams, stream_count))
return res;
+ dc_exit_ips_for_hw_access(dc);
+
DC_LOG_DC("%s: %d streams\n", __func__, stream_count);
for (i = 0; i < stream_count; i++) {
@@ -3373,6 +3399,8 @@ static void commit_planes_for_stream_fast(struct dc *dc,
int i, j;
struct pipe_ctx *top_pipe_to_program = NULL;
struct dc_stream_status *stream_status = NULL;
+ dc_exit_ips_for_hw_access(dc);
+
dc_z10_restore(dc);
top_pipe_to_program = resource_get_otg_master_for_stream(
@@ -3527,6 +3555,8 @@ static void commit_planes_for_stream(struct dc *dc,
// dc->current_state anymore, so we have to cache it before we apply
// the new SubVP context
subvp_prev_use = false;
+ dc_exit_ips_for_hw_access(dc);
+
dc_z10_restore(dc);
if (update_type == UPDATE_TYPE_FULL)
wait_for_outstanding_hw_updates(dc, context);
@@ -4409,6 +4439,8 @@ bool dc_update_planes_and_stream(struct dc *dc,
bool is_plane_addition = 0;
bool is_fast_update_only;
+ dc_exit_ips_for_hw_access(dc);
+
populate_fast_updates(fast_update, srf_updates, surface_count, stream_update);
is_fast_update_only = fast_update_only(dc, fast_update, srf_updates,
surface_count, stream_update, stream);
@@ -4529,6 +4561,8 @@ void dc_commit_updates_for_stream(struct dc *dc,
int i, j;
struct dc_fast_update fast_update[MAX_SURFACES] = {0};
+ dc_exit_ips_for_hw_access(dc);
+
populate_fast_updates(fast_update, srf_updates, surface_count, stream_update);
stream_status = dc_stream_get_status(stream);
context = dc->current_state;
@@ -4713,6 +4747,8 @@ void dc_set_power_state(
case DC_ACPI_CM_POWER_STATE_D0:
dc_state_construct(dc, dc->current_state);
+ dc_exit_ips_for_hw_access(dc);
+
dc_z10_restore(dc);
dc->hwss.init_hw(dc);
@@ -4854,6 +4890,12 @@ void dc_allow_idle_optimizations(struct dc *dc, bool allow)
dc->idle_optimizations_allowed = allow;
}
+void dc_exit_ips_for_hw_access(struct dc *dc)
+{
+ if (dc->caps.ips_support)
+ dc_allow_idle_optimizations(dc, false);
+}
+
bool dc_dmub_is_ips_idle_state(struct dc *dc)
{
uint32_t idle_state = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 54670e0b1518..51a970fcb5d0 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -423,6 +423,8 @@ bool dc_stream_add_writeback(struct dc *dc,
return false;
}
+ dc_exit_ips_for_hw_access(dc);
+
wb_info->dwb_params.out_transfer_func = stream->out_transfer_func;
dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
@@ -493,6 +495,8 @@ bool dc_stream_fc_disable_writeback(struct dc *dc,
return false;
}
+ dc_exit_ips_for_hw_access(dc);
+
if (dwb->funcs->set_fc_enable)
dwb->funcs->set_fc_enable(dwb, DWB_FRAME_CAPTURE_DISABLE);
@@ -542,6 +546,8 @@ bool dc_stream_remove_writeback(struct dc *dc,
return false;
}
+ dc_exit_ips_for_hw_access(dc);
+
/* disable writeback */
if (dc->hwss.disable_writeback) {
struct dwbc *dwb = dc->res_pool->dwbc[dwb_pipe_inst];
@@ -557,6 +563,8 @@ bool dc_stream_warmup_writeback(struct dc *dc,
int num_dwb,
struct dc_writeback_info *wb_info)
{
+ dc_exit_ips_for_hw_access(dc);
+
if (dc->hwss.mmhubbub_warmup)
return dc->hwss.mmhubbub_warmup(dc, num_dwb, wb_info);
else
@@ -569,6 +577,8 @@ uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream)
struct resource_context *res_ctx =
&dc->current_state->res_ctx;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
@@ -597,6 +607,8 @@ bool dc_stream_send_dp_sdp(const struct dc_stream_state *stream,
dc = stream->ctx->dc;
res_ctx = &dc->current_state->res_ctx;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
@@ -628,6 +640,8 @@ bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
struct resource_context *res_ctx =
&dc->current_state->res_ctx;
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < MAX_PIPES; i++) {
struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
@@ -664,6 +678,8 @@ bool dc_stream_dmdata_status_done(struct dc *dc, struct dc_stream_state *stream)
if (i == MAX_PIPES)
return true;
+ dc_exit_ips_for_hw_access(dc);
+
return dc->hwss.dmdata_status_done(pipe);
}
@@ -698,6 +714,8 @@ bool dc_stream_set_dynamic_metadata(struct dc *dc,
pipe_ctx->stream->dmdata_address = attr->address;
+ dc_exit_ips_for_hw_access(dc);
+
dc->hwss.program_dmdata_engine(pipe_ctx);
if (hubp->funcs->dmdata_set_attributes != NULL &&
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
index 19a2c7140ae8..19140fb65787 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
@@ -161,6 +161,8 @@ const struct dc_plane_status *dc_plane_get_status(
break;
}
+ dc_exit_ips_for_hw_access(dc);
+
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe_ctx =
&dc->current_state->res_ctx.pipe_ctx[i];
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 74c871917eaf..53919c0eb1e3 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -2325,6 +2325,7 @@ bool dc_is_plane_eligible_for_idle_optimizations(struct dc *dc, struct dc_plane_
struct dc_cursor_attributes *cursor_attr);
void dc_allow_idle_optimizations(struct dc *dc, bool allow);
+void dc_exit_ips_for_hw_access(struct dc *dc);
bool dc_dmub_is_ips_idle_state(struct dc *dc);
/* set min and max memory clock to lowest and highest DPM level, respectively */
--
2.43.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 16/21] drm/amd/display: Update phantom pipe enable / disable sequence
[not found] <20240131201220.19106-1-hamza.mahfooz@amd.com>
2024-01-31 20:11 ` [PATCH 03/21] drm/amd/display: set odm_combine_policy based on context in dcn32 resource Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 05/21] drm/amd/display: Add more checks for exiting idle in DC Hamza Mahfooz
@ 2024-01-31 20:11 ` Hamza Mahfooz
2 siblings, 0 replies; 3+ messages in thread
From: Hamza Mahfooz @ 2024-01-31 20:11 UTC (permalink / raw
To: amd-gfx
Cc: Harry.Wentland, Sunpeng.Li, Rodrigo.Siqueira, Aurabindo.Pillai,
roman.li, wayne.lin, agustin.gutierrez, chiahsuan.chung,
hersenxs.wu, jerry.zuo, Alvin Lee, stable, Samson Tam,
Hamza Mahfooz
From: Alvin Lee <alvin.lee2@amd.com>
Previously we would call apply_ctx_to_hw to enable and disable
phantom pipes. However, apply_ctx_to_hw can potentially update
non-phantom pipes as well which is undesired. Instead of calling
apply_ctx_to_hw as a whole, call the relevant helpers for each
phantom pipe when enabling / disabling which will avoid us modifying
hardware state for non-phantom pipes unknowingly.
The use case is for an FRL display where FRL_Update is requested
by the display. In this case link_state_valid flag is cleared in
a passive callback thread and should be handled in the next stream /
link update. However, due to the call to apply_ctx_to_hw for the
phantom pipes during a flip, the main pipes were modified outside
of the desired sequence (driver does not handle link_state_valid = 0
on flips).
Cc: stable@vger.kernel.org # 6.6+
Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 +-
.../amd/display/dc/hwss/dce110/dce110_hwseq.c | 4 +-
.../amd/display/dc/hwss/dce110/dce110_hwseq.h | 4 +
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 2 +-
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.h | 4 +
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 76 ++++++++++++++++---
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.h | 2 +
.../amd/display/dc/hwss/dcn32/dcn32_init.c | 3 +
.../drm/amd/display/dc/hwss/hw_sequencer.h | 1 +
.../display/dc/hwss/hw_sequencer_private.h | 7 ++
10 files changed, 94 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index c81f8af5d374..72512903f88f 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3851,7 +3851,9 @@ static void commit_planes_for_stream(struct dc *dc,
* programming has completed (we turn on phantom OTG in order
* to complete the plane disable for phantom pipes).
*/
- dc->hwss.apply_ctx_to_hw(dc, context);
+
+ if (dc->hwss.disable_phantom_streams)
+ dc->hwss.disable_phantom_streams(dc, context);
}
if (update_type != UPDATE_TYPE_FAST)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
index 88170ab0ec7e..a390a9ef81d2 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
@@ -1528,7 +1528,7 @@ static enum dc_status dce110_enable_stream_timing(
return DC_OK;
}
-static enum dc_status apply_single_controller_ctx_to_hw(
+enum dc_status dce110_apply_single_controller_ctx_to_hw(
struct pipe_ctx *pipe_ctx,
struct dc_state *context,
struct dc *dc)
@@ -2355,7 +2355,7 @@ enum dc_status dce110_apply_ctx_to_hw(
if (pipe_ctx->top_pipe || pipe_ctx->prev_odm_pipe)
continue;
- status = apply_single_controller_ctx_to_hw(
+ status = dce110_apply_single_controller_ctx_to_hw(
pipe_ctx,
context,
dc);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.h
index 08028a1779ae..ed3cc3648e8e 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.h
@@ -39,6 +39,10 @@ enum dc_status dce110_apply_ctx_to_hw(
struct dc *dc,
struct dc_state *context);
+enum dc_status dce110_apply_single_controller_ctx_to_hw(
+ struct pipe_ctx *pipe_ctx,
+ struct dc_state *context,
+ struct dc *dc);
void dce110_enable_stream(struct pipe_ctx *pipe_ctx);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
index 7557e58f58b2..bc0a21957e33 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
@@ -2671,7 +2671,7 @@ void dcn20_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx)
tg->funcs->setup_vertical_interrupt2(tg, start_line);
}
-static void dcn20_reset_back_end_for_pipe(
+void dcn20_reset_back_end_for_pipe(
struct dc *dc,
struct pipe_ctx *pipe_ctx,
struct dc_state *context)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.h
index 90316327e6fc..5c874f7b0683 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.h
@@ -86,6 +86,10 @@ enum dc_status dcn20_enable_stream_timing(
void dcn20_disable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx);
void dcn20_enable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx);
void dcn20_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx);
+void dcn20_reset_back_end_for_pipe(
+ struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ struct dc_state *context);
void dcn20_init_blank(
struct dc *dc,
struct timing_generator *tg);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
index 6c9299c7683d..aa36d7a56ca8 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
@@ -1474,9 +1474,44 @@ void dcn32_update_dsc_pg(struct dc *dc,
}
}
+void dcn32_disable_phantom_streams(struct dc *dc, struct dc_state *context)
+{
+ struct dce_hwseq *hws = dc->hwseq;
+ int i;
+
+ for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
+ struct pipe_ctx *pipe_ctx_old =
+ &dc->current_state->res_ctx.pipe_ctx[i];
+ struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+ if (!pipe_ctx_old->stream)
+ continue;
+
+ if (dc_state_get_pipe_subvp_type(dc->current_state, pipe_ctx_old) != SUBVP_PHANTOM)
+ continue;
+
+ if (pipe_ctx_old->top_pipe || pipe_ctx_old->prev_odm_pipe)
+ continue;
+
+ if (!pipe_ctx->stream || pipe_need_reprogram(pipe_ctx_old, pipe_ctx) ||
+ (pipe_ctx->stream && dc_state_get_pipe_subvp_type(context, pipe_ctx) != SUBVP_PHANTOM)) {
+ struct clock_source *old_clk = pipe_ctx_old->clock_source;
+
+ if (hws->funcs.reset_back_end_for_pipe)
+ hws->funcs.reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
+ if (hws->funcs.enable_stream_gating)
+ hws->funcs.enable_stream_gating(dc, pipe_ctx_old);
+ if (old_clk)
+ old_clk->funcs->cs_power_down(old_clk);
+ }
+ }
+}
+
void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context)
{
unsigned int i;
+ enum dc_status status = DC_OK;
+ struct dce_hwseq *hws = dc->hwseq;
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
@@ -1497,16 +1532,39 @@ void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context)
}
}
for (i = 0; i < dc->res_pool->pipe_count; i++) {
- struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i];
-
- if (new_pipe->stream && dc_state_get_pipe_subvp_type(context, new_pipe) == SUBVP_PHANTOM) {
- // If old context or new context has phantom pipes, apply
- // the phantom timings now. We can't change the phantom
- // pipe configuration safely without driver acquiring
- // the DMCUB lock first.
- dc->hwss.apply_ctx_to_hw(dc, context);
- break;
+ struct pipe_ctx *pipe_ctx_old =
+ &dc->current_state->res_ctx.pipe_ctx[i];
+ struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+ if (pipe_ctx->stream == NULL)
+ continue;
+
+ if (dc_state_get_pipe_subvp_type(context, pipe_ctx) != SUBVP_PHANTOM)
+ continue;
+
+ if (pipe_ctx->stream == pipe_ctx_old->stream &&
+ pipe_ctx->stream->link->link_state_valid) {
+ continue;
}
+
+ if (pipe_ctx_old->stream && !pipe_need_reprogram(pipe_ctx_old, pipe_ctx))
+ continue;
+
+ if (pipe_ctx->top_pipe || pipe_ctx->prev_odm_pipe)
+ continue;
+
+ if (hws->funcs.apply_single_controller_ctx_to_hw)
+ status = hws->funcs.apply_single_controller_ctx_to_hw(
+ pipe_ctx,
+ context,
+ dc);
+
+ ASSERT(status == DC_OK);
+
+#ifdef CONFIG_DRM_AMD_DC_FP
+ if (hws->funcs.resync_fifo_dccg_dio)
+ hws->funcs.resync_fifo_dccg_dio(hws, dc, context);
+#endif
}
}
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.h
index cecf7f0f5671..069e20bc87c0 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.h
@@ -111,6 +111,8 @@ void dcn32_update_dsc_pg(struct dc *dc,
void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context);
+void dcn32_disable_phantom_streams(struct dc *dc, struct dc_state *context);
+
void dcn32_init_blank(
struct dc *dc,
struct timing_generator *tg);
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_init.c
index 0980df6c65ea..2b073123d3ed 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_init.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_init.c
@@ -109,6 +109,7 @@ static const struct hw_sequencer_funcs dcn32_funcs = {
.get_dcc_en_bits = dcn10_get_dcc_en_bits,
.commit_subvp_config = dcn32_commit_subvp_config,
.enable_phantom_streams = dcn32_enable_phantom_streams,
+ .disable_phantom_streams = dcn32_disable_phantom_streams,
.subvp_pipe_control_lock = dcn32_subvp_pipe_control_lock,
.update_visual_confirm_color = dcn10_update_visual_confirm_color,
.subvp_pipe_control_lock_fast = dcn32_subvp_pipe_control_lock_fast,
@@ -159,6 +160,8 @@ static const struct hwseq_private_funcs dcn32_private_funcs = {
.set_pixels_per_cycle = dcn32_set_pixels_per_cycle,
.resync_fifo_dccg_dio = dcn32_resync_fifo_dccg_dio,
.is_dp_dig_pixel_rate_div_policy = dcn32_is_dp_dig_pixel_rate_div_policy,
+ .apply_single_controller_ctx_to_hw = dce110_apply_single_controller_ctx_to_hw,
+ .reset_back_end_for_pipe = dcn20_reset_back_end_for_pipe,
};
void dcn32_hw_sequencer_init_functions(struct dc *dc)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h
index 91b1b43a728f..f89f205e42a1 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h
@@ -381,6 +381,7 @@ struct hw_sequencer_funcs {
struct dc_cursor_attributes *cursor_attr);
void (*commit_subvp_config)(struct dc *dc, struct dc_state *context);
void (*enable_phantom_streams)(struct dc *dc, struct dc_state *context);
+ void (*disable_phantom_streams)(struct dc *dc, struct dc_state *context);
void (*subvp_pipe_control_lock)(struct dc *dc,
struct dc_state *context,
bool lock,
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
index 6137cf09aa54..b3c62a82cb1c 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
+++ b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
@@ -165,8 +165,15 @@ struct hwseq_private_funcs {
void (*set_pixels_per_cycle)(struct pipe_ctx *pipe_ctx);
void (*resync_fifo_dccg_dio)(struct dce_hwseq *hws, struct dc *dc,
struct dc_state *context);
+ enum dc_status (*apply_single_controller_ctx_to_hw)(
+ struct pipe_ctx *pipe_ctx,
+ struct dc_state *context,
+ struct dc *dc);
bool (*is_dp_dig_pixel_rate_div_policy)(struct pipe_ctx *pipe_ctx);
#endif
+ void (*reset_back_end_for_pipe)(struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ struct dc_state *context);
};
struct dce_hwseq {
--
2.43.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-01-31 20:15 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <20240131201220.19106-1-hamza.mahfooz@amd.com>
2024-01-31 20:11 ` [PATCH 03/21] drm/amd/display: set odm_combine_policy based on context in dcn32 resource Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 05/21] drm/amd/display: Add more checks for exiting idle in DC Hamza Mahfooz
2024-01-31 20:11 ` [PATCH 16/21] drm/amd/display: Update phantom pipe enable / disable sequence Hamza Mahfooz
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).