From: Wesley Chalmers <Wesley.Chalmers@xxxxxxx>
[WHY]
DCN30 has a bug where blanking HUBP blocks pstate allow unless
HUBP_DISABLE is toggled afterwards.
[HOW]
Create a HW sequence for blanking HUBP.
1. Wait for enter VBLANK
2. Set HUBP_BLANK
3. Make sure HUBP_IN_BLANK = 1
4. Toggle HUBP_DISABLE on and off to perform soft reset
All existing calls to hubp->funcs->set_blank should be replaced with
this new sequence.
In wait_for_mpcc_disconnect, only blank the pipe being disconnected, and
leave all other pipes unmodified.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
.../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 36 +++++++++++---
.../amd/display/dc/dcn10/dcn10_hw_sequencer.h | 3 ++
.../gpu/drm/amd/display/dc/dcn10/dcn10_init.c | 1 +
.../drm/amd/display/dc/dcn20/dcn20_hwseq.c | 2 +-
.../gpu/drm/amd/display/dc/dcn20/dcn20_init.c | 1 +
.../gpu/drm/amd/display/dc/dcn21/dcn21_init.c | 1 +
.../drm/amd/display/dc/dcn30/dcn30_hwseq.c | 47 +++++++++++++++++++
.../drm/amd/display/dc/dcn30/dcn30_hwseq.h | 4 ++
.../gpu/drm/amd/display/dc/dcn30/dcn30_init.c | 1 +
.../drm/amd/display/dc/dcn301/dcn301_init.c | 1 +
.../gpu/drm/amd/display/dc/inc/hw_sequencer.h | 4 ++
11 files changed, 93 insertions(+), 8 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 cfc130e2d6fd..add86d4086e8 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
@@ -2624,7 +2624,7 @@ static void dcn10_update_dchubp_dpp(
hws->funcs.update_plane_addr(dc, pipe_ctx);
if (is_pipe_tree_visible(pipe_ctx))
- hubp->funcs->set_blank(hubp, false);
+ dc->hwss.set_hubp_blank(dc, pipe_ctx, false);
}
void dcn10_blank_pixel_data(
@@ -3135,13 +3135,16 @@ void dcn10_setup_stereo(struct pipe_ctx *pipe_ctx, struct dc *dc)
return;
}
-static struct hubp *get_hubp_by_inst(struct resource_pool *res_pool, int mpcc_inst)
+static struct pipe_ctx *get_pipe_ctx_by_hubp_inst(struct dc_state *context, int mpcc_inst)
{
int i;
- for (i = 0; i < res_pool->pipe_count; i++) {
- if (res_pool->hubps[i]->inst == mpcc_inst)
- return res_pool->hubps[i];
+ for (i = 0; i < MAX_PIPES; i++) {
+ if (context->res_ctx.pipe_ctx[i].plane_res.hubp
+ && context->res_ctx.pipe_ctx[i].plane_res.hubp->inst == mpcc_inst) {
+ return &context->res_ctx.pipe_ctx[i];
+ }
+
}
ASSERT(false);
return NULL;
@@ -3164,11 +3167,23 @@ void dcn10_wait_for_mpcc_disconnect(
for (mpcc_inst = 0; mpcc_inst < MAX_PIPES; mpcc_inst++) {
if (pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst]) {
- struct hubp *hubp = get_hubp_by_inst(res_pool, mpcc_inst);
+ struct pipe_ctx *restore_bottom_pipe;
+ struct pipe_ctx *restore_top_pipe;
+ struct pipe_ctx *inst_pipe_ctx = get_pipe_ctx_by_hubp_inst(dc->current_state, mpcc_inst);
+ ASSERT(inst_pipe_ctx);
res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst);
pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false;
- hubp->funcs->set_blank(hubp, true);
+ /*
+ * Set top and bottom pipes NULL, as we don't want
+ * to blank those pipes when disconnecting from MPCC
+ */
+ restore_bottom_pipe = inst_pipe_ctx->bottom_pipe;
+ restore_top_pipe = inst_pipe_ctx->top_pipe;
+ inst_pipe_ctx->top_pipe = inst_pipe_ctx->bottom_pipe = NULL;
+ dc->hwss.set_hubp_blank(dc, inst_pipe_ctx, true);
+ inst_pipe_ctx->top_pipe = restore_top_pipe;
+ inst_pipe_ctx->bottom_pipe = restore_bottom_pipe;
}
}
@@ -3721,3 +3736,10 @@ void dcn10_get_clock(struct dc *dc,
dc->clk_mgr->funcs->get_clock(dc->clk_mgr, context, clock_type, clock_cfg);
}
+
+void dcn10_set_hubp_blank(const struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ bool blank_enable)
+{
+ pipe_ctx->plane_res.hubp->funcs->set_blank(pipe_ctx->plane_res.hubp, blank_enable);
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
index dee8ad1ebaa4..89e6dfb63da0 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
@@ -204,5 +204,8 @@ void dcn10_wait_for_pending_cleared(struct dc *dc,
struct dc_state *context);
void dcn10_set_hdr_multiplier(struct pipe_ctx *pipe_ctx);
void dcn10_verify_allow_pstate_change_high(struct dc *dc);
+void dcn10_set_hubp_blank(const struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ bool blank_enable);
#endif /* __DC_HWSS_DCN10_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
index 254300b06b43..2f1b802e66a1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
@@ -79,6 +79,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
.set_backlight_level = dce110_set_backlight_level,
.set_abm_immediate_disable = dce110_set_abm_immediate_disable,
.set_pipe = dce110_set_pipe,
+ .set_hubp_blank = dcn10_set_hubp_blank,
};
static const struct hwseq_private_funcs dcn10_private_funcs = {
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 6470f5c7dfea..b74f79575cdf 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1571,7 +1571,7 @@ static void dcn20_update_dchubp_dpp(
if (is_pipe_tree_visible(pipe_ctx))
- hubp->funcs->set_blank(hubp, false);
+ dc->hwss.set_hubp_blank(dc, pipe_ctx, false);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
index de9dcbeea150..51a4166e9750 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
@@ -94,6 +94,7 @@ static const struct hw_sequencer_funcs dcn20_funcs = {
.optimize_timing_for_fsft = dcn20_optimize_timing_for_fsft,
#endif
.set_disp_pattern_generator = dcn20_set_disp_pattern_generator,
+ .set_hubp_blank = dcn10_set_hubp_blank,
};
static const struct hwseq_private_funcs dcn20_private_funcs = {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
index 074e2713257f..0597391b2171 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
@@ -99,6 +99,7 @@ static const struct hw_sequencer_funcs dcn21_funcs = {
#endif
.is_abm_supported = dcn21_is_abm_supported,
.set_disp_pattern_generator = dcn20_set_disp_pattern_generator,
+ .set_hubp_blank = dcn10_set_hubp_blank,
};
static const struct hwseq_private_funcs dcn21_private_funcs = {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
index b83c13d3d8b7..7f26c9444933 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
@@ -836,6 +836,53 @@ void dcn30_hardware_release(struct dc *dc)
dc->res_pool->hubbub, true, true);
}
+void dcn30_set_hubp_blank(const struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ bool blank_enable)
+{
+ struct pipe_ctx *mpcc_pipe;
+ struct pipe_ctx *odm_pipe;
+
+ if (blank_enable) {
+ struct plane_resource *plane_res = &pipe_ctx->plane_res;
+ struct stream_resource *stream_res = &pipe_ctx->stream_res;
+
+ /* Wait for enter vblank */
+ stream_res->tg->funcs->wait_for_state(stream_res->tg, CRTC_STATE_VBLANK);
+
+ /* Blank HUBP to allow p-state during blank on all timings */
+ pipe_ctx->plane_res.hubp->funcs->set_blank(pipe_ctx->plane_res.hubp, true);
+ /* Confirm hubp in blank */
+ ASSERT(plane_res->hubp->funcs->hubp_in_blank(plane_res->hubp));
+ /* Toggle HUBP_DISABLE */
+ plane_res->hubp->funcs->hubp_soft_reset(plane_res->hubp, true);
+ plane_res->hubp->funcs->hubp_soft_reset(plane_res->hubp, false);
+ for (mpcc_pipe = pipe_ctx->bottom_pipe; mpcc_pipe; mpcc_pipe = mpcc_pipe->bottom_pipe) {
+ mpcc_pipe->plane_res.hubp->funcs->set_blank(mpcc_pipe->plane_res.hubp, true);
+ /* Confirm hubp in blank */
+ ASSERT(mpcc_pipe->plane_res.hubp->funcs->hubp_in_blank(mpcc_pipe->plane_res.hubp));
+ /* Toggle HUBP_DISABLE */
+ mpcc_pipe->plane_res.hubp->funcs->hubp_soft_reset(mpcc_pipe->plane_res.hubp, true);
+ mpcc_pipe->plane_res.hubp->funcs->hubp_soft_reset(mpcc_pipe->plane_res.hubp, false);
+
+ }
+ for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+ odm_pipe->plane_res.hubp->funcs->set_blank(odm_pipe->plane_res.hubp, true);
+ /* Confirm hubp in blank */
+ ASSERT(odm_pipe->plane_res.hubp->funcs->hubp_in_blank(odm_pipe->plane_res.hubp));
+ /* Toggle HUBP_DISABLE */
+ odm_pipe->plane_res.hubp->funcs->hubp_soft_reset(odm_pipe->plane_res.hubp, true);
+ odm_pipe->plane_res.hubp->funcs->hubp_soft_reset(odm_pipe->plane_res.hubp, false);
+ }
+ } else {
+ pipe_ctx->plane_res.hubp->funcs->set_blank(pipe_ctx->plane_res.hubp, false);
+ for (mpcc_pipe = pipe_ctx->bottom_pipe; mpcc_pipe; mpcc_pipe = mpcc_pipe->bottom_pipe)
+ mpcc_pipe->plane_res.hubp->funcs->set_blank(mpcc_pipe->plane_res.hubp, false);
+ for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
+ odm_pipe->plane_res.hubp->funcs->set_blank(odm_pipe->plane_res.hubp, false);
+ }
+}
+
void dcn30_set_disp_pattern_generator(const struct dc *dc,
struct pipe_ctx *pipe_ctx,
enum controller_dp_test_pattern test_pattern,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
index bfc97e2ece61..1103f6356e90 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
@@ -79,4 +79,8 @@ void dcn30_set_disp_pattern_generator(const struct dc *dc,
const struct tg_color *solid_color,
int width, int height, int offset);
+void dcn30_set_hubp_blank(const struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ bool blank_enable);
+
#endif /* __DC_HWSS_DCN30_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
index c4c14e9c1309..204444fead97 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c
@@ -98,6 +98,7 @@ static const struct hw_sequencer_funcs dcn30_funcs = {
.hardware_release = dcn30_hardware_release,
.set_pipe = dcn21_set_pipe,
.set_disp_pattern_generator = dcn30_set_disp_pattern_generator,
+ .set_hubp_blank = dcn30_set_hubp_blank,
};
static const struct hwseq_private_funcs dcn30_private_funcs = {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
index bdad72140cbc..b8bf6d61005b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
@@ -98,6 +98,7 @@ static const struct hw_sequencer_funcs dcn301_funcs = {
.set_abm_immediate_disable = dcn21_set_abm_immediate_disable,
.set_pipe = dcn21_set_pipe,
.set_disp_pattern_generator = dcn30_set_disp_pattern_generator,
+ .set_hubp_blank = dcn30_set_hubp_blank,
};
static const struct hwseq_private_funcs dcn301_private_funcs = {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index 7a19ff5d4214..48378beb71c0 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -230,6 +230,10 @@ struct hw_sequencer_funcs {
enum dc_color_depth color_depth,
const struct tg_color *solid_color,
int width, int height, int offset);
+
+ void (*set_hubp_blank)(const struct dc *dc,
+ struct pipe_ctx *pipe_ctx,
+ bool blank_enable);
};
void color_space_to_black_color(
--
2.25.1
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