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From b3d57bb8aa9475e670ea539fb5cccf53b62f4772 Mon Sep 17 00:00:00 2001
From: David Francis <David.Francis@amd.com>
Date: Wed, 6 Feb 2019 13:44:33 -0500
Subject: [PATCH 1307/2940] drm/amd/display: Make stream commits call into DC
only once
[Why]
dc_commit_updates_for_stream is called twice per stream: once
with the flip data and once will all other data. This causes
problems when these DC calls have different numbers of planes
For example, a commit with a pageflip on plane A and a
non-pageflip change on plane B will first call
into DC with just plane A, causing plane B to be
disabled. Then it will call into DC with both planes,
re-enabling plane B
[How]
Merge flip and full into a single bundle
Apart from the single DC call, the logic should not be
changed by this patch
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 129 ++++++++----------
1 file changed, 54 insertions(+), 75 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 1b56da5a32d4..ab4bae386772 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4758,30 +4758,25 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
struct dm_crtc_state *dm_old_crtc_state =
to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
- int flip_count = 0, planes_count = 0, vpos, hpos;
+ int planes_count = 0, vpos, hpos;
unsigned long flags;
struct amdgpu_bo *abo;
uint64_t tiling_flags, dcc_address;
uint32_t target, target_vblank;
-
- struct {
- struct dc_surface_update surface_updates[MAX_SURFACES];
- struct dc_flip_addrs flip_addrs[MAX_SURFACES];
- struct dc_stream_update stream_update;
- } *flip;
+ bool pflip_present = false;
struct {
struct dc_surface_update surface_updates[MAX_SURFACES];
struct dc_plane_info plane_infos[MAX_SURFACES];
struct dc_scaling_info scaling_infos[MAX_SURFACES];
+ struct dc_flip_addrs flip_addrs[MAX_SURFACES];
struct dc_stream_update stream_update;
- } *full;
+ } *bundle;
- flip = kzalloc(sizeof(*flip), GFP_KERNEL);
- full = kzalloc(sizeof(*full), GFP_KERNEL);
+ bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
- if (!flip || !full) {
- dm_error("Failed to allocate update bundles\n");
+ if (!bundle) {
+ dm_error("Failed to allocate update bundle\n");
goto cleanup;
}
@@ -4791,7 +4786,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct drm_crtc_state *new_crtc_state;
struct drm_framebuffer *fb = new_plane_state->fb;
struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb);
- bool pflip_needed;
+ bool framebuffer_changed;
struct dc_plane_state *dc_plane;
struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
@@ -4806,12 +4801,14 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
if (!new_crtc_state->active)
continue;
- pflip_needed = old_plane_state->fb &&
+ dc_plane = dm_new_plane_state->dc_state;
+
+ framebuffer_changed = old_plane_state->fb &&
old_plane_state->fb != new_plane_state->fb;
- dc_plane = dm_new_plane_state->dc_state;
+ pflip_present = pflip_present || framebuffer_changed;
- if (pflip_needed) {
+ if (framebuffer_changed) {
/*
* TODO This might fail and hence better not used, wait
* explicitly on fences instead
@@ -4840,22 +4837,22 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
amdgpu_bo_unreserve(abo);
- flip->flip_addrs[flip_count].address.grph.addr.low_part = lower_32_bits(afb->address);
- flip->flip_addrs[flip_count].address.grph.addr.high_part = upper_32_bits(afb->address);
+ bundle->flip_addrs[planes_count].address.grph.addr.low_part = lower_32_bits(afb->address);
+ bundle->flip_addrs[planes_count].address.grph.addr.high_part = upper_32_bits(afb->address);
dcc_address = get_dcc_address(afb->address, tiling_flags);
- flip->flip_addrs[flip_count].address.grph.meta_addr.low_part = lower_32_bits(dcc_address);
- flip->flip_addrs[flip_count].address.grph.meta_addr.high_part = upper_32_bits(dcc_address);
+ bundle->flip_addrs[planes_count].address.grph.meta_addr.low_part = lower_32_bits(dcc_address);
+ bundle->flip_addrs[planes_count].address.grph.meta_addr.high_part = upper_32_bits(dcc_address);
- flip->flip_addrs[flip_count].flip_immediate =
+ bundle->flip_addrs[planes_count].flip_immediate =
(crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
timestamp_ns = ktime_get_ns();
- flip->flip_addrs[flip_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000);
- flip->surface_updates[flip_count].flip_addr = &flip->flip_addrs[flip_count];
- flip->surface_updates[flip_count].surface = dc_plane;
+ bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000);
+ bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count];
+ bundle->surface_updates[planes_count].surface = dc_plane;
- if (!flip->surface_updates[flip_count].surface) {
+ if (!bundle->surface_updates[planes_count].surface) {
DRM_ERROR("No surface for CRTC: id=%d\n",
acrtc_attach->crtc_id);
continue;
@@ -4867,53 +4864,45 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
acrtc_state,
acrtc_state->stream,
dc_plane,
- flip->flip_addrs[flip_count].flip_timestamp_in_us);
+ bundle->flip_addrs[planes_count].flip_timestamp_in_us);
DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n",
__func__,
- flip->flip_addrs[flip_count].address.grph.addr.high_part,
- flip->flip_addrs[flip_count].address.grph.addr.low_part);
-
- flip_count += 1;
+ bundle->flip_addrs[planes_count].address.grph.addr.high_part,
+ bundle->flip_addrs[planes_count].address.grph.addr.low_part);
}
- full->surface_updates[planes_count].surface = dc_plane;
+ bundle->surface_updates[planes_count].surface = dc_plane;
if (new_pcrtc_state->color_mgmt_changed) {
- full->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
- full->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func;
+ bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
+ bundle->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func;
}
- full->scaling_infos[planes_count].scaling_quality = dc_plane->scaling_quality;
- full->scaling_infos[planes_count].src_rect = dc_plane->src_rect;
- full->scaling_infos[planes_count].dst_rect = dc_plane->dst_rect;
- full->scaling_infos[planes_count].clip_rect = dc_plane->clip_rect;
- full->surface_updates[planes_count].scaling_info = &full->scaling_infos[planes_count];
+ bundle->scaling_infos[planes_count].scaling_quality = dc_plane->scaling_quality;
+ bundle->scaling_infos[planes_count].src_rect = dc_plane->src_rect;
+ bundle->scaling_infos[planes_count].dst_rect = dc_plane->dst_rect;
+ bundle->scaling_infos[planes_count].clip_rect = dc_plane->clip_rect;
+ bundle->surface_updates[planes_count].scaling_info = &bundle->scaling_infos[planes_count];
- full->plane_infos[planes_count].color_space = dc_plane->color_space;
- full->plane_infos[planes_count].format = dc_plane->format;
- full->plane_infos[planes_count].plane_size = dc_plane->plane_size;
- full->plane_infos[planes_count].rotation = dc_plane->rotation;
- full->plane_infos[planes_count].horizontal_mirror = dc_plane->horizontal_mirror;
- full->plane_infos[planes_count].stereo_format = dc_plane->stereo_format;
- full->plane_infos[planes_count].tiling_info = dc_plane->tiling_info;
- full->plane_infos[planes_count].visible = dc_plane->visible;
- full->plane_infos[planes_count].per_pixel_alpha = dc_plane->per_pixel_alpha;
- full->plane_infos[planes_count].dcc = dc_plane->dcc;
- full->surface_updates[planes_count].plane_info = &full->plane_infos[planes_count];
+ bundle->plane_infos[planes_count].color_space = dc_plane->color_space;
+ bundle->plane_infos[planes_count].format = dc_plane->format;
+ bundle->plane_infos[planes_count].plane_size = dc_plane->plane_size;
+ bundle->plane_infos[planes_count].rotation = dc_plane->rotation;
+ bundle->plane_infos[planes_count].horizontal_mirror = dc_plane->horizontal_mirror;
+ bundle->plane_infos[planes_count].stereo_format = dc_plane->stereo_format;
+ bundle->plane_infos[planes_count].tiling_info = dc_plane->tiling_info;
+ bundle->plane_infos[planes_count].visible = dc_plane->visible;
+ bundle->plane_infos[planes_count].per_pixel_alpha = dc_plane->per_pixel_alpha;
+ bundle->plane_infos[planes_count].dcc = dc_plane->dcc;
+ bundle->surface_updates[planes_count].plane_info = &bundle->plane_infos[planes_count];
planes_count += 1;
}
- /*
- * TODO: For proper atomic behaviour, we should be calling into DC once with
- * all the changes. However, DC refuses to do pageflips and non-pageflip
- * changes in the same call. Change DC to respect atomic behaviour,
- * hopefully eliminating dc_*_update structs in their entirety.
- */
- if (flip_count) {
+ if (pflip_present) {
target = (uint32_t)drm_crtc_vblank_count(pcrtc) + wait_for_vblank;
/* Prepare wait for target vblank early - before the fence-waits */
target_vblank = target - (uint32_t)drm_crtc_vblank_count(pcrtc) +
@@ -4948,43 +4937,34 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
if (acrtc_state->stream) {
if (acrtc_state->freesync_timing_changed)
- flip->stream_update.adjust =
+ bundle->stream_update.adjust =
&acrtc_state->stream->adjust;
if (acrtc_state->freesync_vrr_info_changed)
- flip->stream_update.vrr_infopacket =
+ bundle->stream_update.vrr_infopacket =
&acrtc_state->stream->vrr_infopacket;
}
-
- mutex_lock(&dm->dc_lock);
- dc_commit_updates_for_stream(dm->dc,
- flip->surface_updates,
- flip_count,
- acrtc_state->stream,
- &flip->stream_update,
- dc_state);
- mutex_unlock(&dm->dc_lock);
}
if (planes_count) {
if (new_pcrtc_state->mode_changed) {
- full->stream_update.src = acrtc_state->stream->src;
- full->stream_update.dst = acrtc_state->stream->dst;
+ bundle->stream_update.src = acrtc_state->stream->src;
+ bundle->stream_update.dst = acrtc_state->stream->dst;
}
if (new_pcrtc_state->color_mgmt_changed)
- full->stream_update.out_transfer_func = acrtc_state->stream->out_transfer_func;
+ bundle->stream_update.out_transfer_func = acrtc_state->stream->out_transfer_func;
acrtc_state->stream->abm_level = acrtc_state->abm_level;
if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
- full->stream_update.abm_level = &acrtc_state->abm_level;
+ bundle->stream_update.abm_level = &acrtc_state->abm_level;
mutex_lock(&dm->dc_lock);
dc_commit_updates_for_stream(dm->dc,
- full->surface_updates,
+ bundle->surface_updates,
planes_count,
acrtc_state->stream,
- &full->stream_update,
+ &bundle->stream_update,
dc_state);
mutex_unlock(&dm->dc_lock);
}
@@ -4994,8 +4974,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
handle_cursor_update(plane, old_plane_state);
cleanup:
- kfree(flip);
- kfree(full);
+ kfree(bundle);
}
/*
--
2.17.1
|
