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Message-Id: <20210301161231.793645371@linuxfoundation.org>
Date: Mon, 1 Mar 2021 17:13:03 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Anson Jacob <Anson.Jacob@....com>,
Bhawanpreet Lakha <bhawanpreet.lakha@....com>,
Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 5.11 615/775] Revert "drm/amd/display: reuse current context instead of recreating one"
From: Anson Jacob <Anson.Jacob@....com>
commit efc8278eecfd5e6fa36c5d41e71d038f534fe107 upstream.
This reverts commit 8866a67ab86cc0812e65c04f1ef02bcc41e24d68.
Reason for revert: This breaks hotplug of HDMI on some systems,
resulting in a blank screen. Caused general hangs on boot/hotplugs.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1487
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1492
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211649
Signed-off-by: Anson Jacob <Anson.Jacob@....com>
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@....com>
Acked-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 ++++++++++--------
drivers/gpu/drm/amd/display/dc/core/dc.c | 27 ++++++----------------
drivers/gpu/drm/amd/display/dc/dc_stream.h | 3 +-
3 files changed, 23 insertions(+), 30 deletions(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1934,7 +1934,7 @@ static void dm_gpureset_commit_state(str
dc_commit_updates_for_stream(
dm->dc, bundle->surface_updates,
dc_state->stream_status->plane_count,
- dc_state->streams[k], &bundle->stream_update);
+ dc_state->streams[k], &bundle->stream_update, dc_state);
}
cleanup:
@@ -1965,7 +1965,8 @@ static void dm_set_dpms_off(struct dc_li
stream_update.stream = stream_state;
dc_commit_updates_for_stream(stream_state->ctx->dc, NULL, 0,
- stream_state, &stream_update);
+ stream_state, &stream_update,
+ stream_state->ctx->dc->current_state);
mutex_unlock(&adev->dm.dc_lock);
}
@@ -7548,7 +7549,7 @@ static void amdgpu_dm_commit_planes(stru
struct drm_crtc *pcrtc,
bool wait_for_vblank)
{
- int i;
+ uint32_t i;
uint64_t timestamp_ns;
struct drm_plane *plane;
struct drm_plane_state *old_plane_state, *new_plane_state;
@@ -7589,7 +7590,7 @@ static void amdgpu_dm_commit_planes(stru
amdgpu_dm_commit_cursors(state);
/* update planes when needed */
- for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
+ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
struct drm_crtc *crtc = new_plane_state->crtc;
struct drm_crtc_state *new_crtc_state;
struct drm_framebuffer *fb = new_plane_state->fb;
@@ -7812,7 +7813,8 @@ static void amdgpu_dm_commit_planes(stru
bundle->surface_updates,
planes_count,
acrtc_state->stream,
- &bundle->stream_update);
+ &bundle->stream_update,
+ dc_state);
/**
* Enable or disable the interrupts on the backend.
@@ -8148,13 +8150,13 @@ static void amdgpu_dm_atomic_commit_tail
struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
- struct dc_surface_update surface_updates[MAX_SURFACES];
+ struct dc_surface_update dummy_updates[MAX_SURFACES];
struct dc_stream_update stream_update;
struct dc_info_packet hdr_packet;
struct dc_stream_status *status = NULL;
bool abm_changed, hdr_changed, scaling_changed;
- memset(&surface_updates, 0, sizeof(surface_updates));
+ memset(&dummy_updates, 0, sizeof(dummy_updates));
memset(&stream_update, 0, sizeof(stream_update));
if (acrtc) {
@@ -8211,15 +8213,16 @@ static void amdgpu_dm_atomic_commit_tail
* To fix this, DC should permit updating only stream properties.
*/
for (j = 0; j < status->plane_count; j++)
- surface_updates[j].surface = status->plane_states[j];
+ dummy_updates[j].surface = status->plane_states[0];
mutex_lock(&dm->dc_lock);
dc_commit_updates_for_stream(dm->dc,
- surface_updates,
+ dummy_updates,
status->plane_count,
dm_new_crtc_state->stream,
- &stream_update);
+ &stream_update,
+ dc_state);
mutex_unlock(&dm->dc_lock);
}
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2679,7 +2679,8 @@ void dc_commit_updates_for_stream(struct
struct dc_surface_update *srf_updates,
int surface_count,
struct dc_stream_state *stream,
- struct dc_stream_update *stream_update)
+ struct dc_stream_update *stream_update,
+ struct dc_state *state)
{
const struct dc_stream_status *stream_status;
enum surface_update_type update_type;
@@ -2698,12 +2699,6 @@ void dc_commit_updates_for_stream(struct
if (update_type >= UPDATE_TYPE_FULL) {
- struct dc_plane_state *new_planes[MAX_SURFACES];
-
- memset(new_planes, 0, sizeof(new_planes));
-
- for (i = 0; i < surface_count; i++)
- new_planes[i] = srf_updates[i].surface;
/* initialize scratch memory for building context */
context = dc_create_state(dc);
@@ -2712,21 +2707,15 @@ void dc_commit_updates_for_stream(struct
return;
}
- dc_resource_state_copy_construct(
- dc->current_state, context);
+ dc_resource_state_copy_construct(state, context);
- /*remove old surfaces from context */
- if (!dc_rem_all_planes_for_stream(dc, stream, context)) {
- DC_ERROR("Failed to remove streams for new validate context!\n");
- return;
- }
+ for (i = 0; i < dc->res_pool->pipe_count; i++) {
+ struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i];
+ struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
- /* add surface to context */
- if (!dc_add_all_planes_for_stream(dc, stream, new_planes, surface_count, context)) {
- DC_ERROR("Failed to add streams for new validate context!\n");
- return;
+ if (new_pipe->plane_state && new_pipe->plane_state != old_pipe->plane_state)
+ new_pipe->plane_state->force_full_update = true;
}
-
}
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -283,7 +283,8 @@ void dc_commit_updates_for_stream(struct
struct dc_surface_update *srf_updates,
int surface_count,
struct dc_stream_state *stream,
- struct dc_stream_update *stream_update);
+ struct dc_stream_update *stream_update,
+ struct dc_state *state);
/*
* Log the current stream state.
*/
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