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drm/amd/display: Refactor pageflips plane commit 

[Why]
commit_planes is indented quite far

[How]
Move the pageflip code from an if statement to after a
continue

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Francis 2019-02-13 13:20:11 -05:00 committed by Alex Deucher
parent 34bafd27e3
commit f503100060
1 changed files with 64 additions and 68 deletions
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132
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -4712,74 +4712,6 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
dc_plane = dm_new_plane_state->dc_state;
plane_needs_flip = old_plane_state->fb && new_plane_state->fb;
pflip_present = pflip_present || plane_needs_flip;
if (plane_needs_flip) {
/*
* TODO This might fail and hence better not used, wait
* explicitly on fences instead
* and in general should be called for
* blocking commit to as per framework helpers
*/
abo = gem_to_amdgpu_bo(fb->obj[0]);
r = amdgpu_bo_reserve(abo, true);
if (unlikely(r != 0))
DRM_ERROR("failed to reserve buffer before flip\n");
/*
* Wait for all fences on this FB. Do limited wait to avoid
* deadlock during GPU reset when this fence will not signal
* but we hold reservation lock for the BO.
*/
r = reservation_object_wait_timeout_rcu(abo->tbo.resv,
true, false,
msecs_to_jiffies(5000));
if (unlikely(r == 0))
DRM_ERROR("Waiting for fences timed out.");
amdgpu_bo_get_tiling_flags(abo, &tiling_flags);
amdgpu_bo_unreserve(abo);
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);
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);
bundle->flip_addrs[planes_count].flip_immediate =
(crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
timestamp_ns = ktime_get_ns();
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 (!bundle->surface_updates[planes_count].surface) {
DRM_ERROR("No surface for CRTC: id=%d\n",
acrtc_attach->crtc_id);
continue;
}
if (plane == pcrtc->primary)
update_freesync_state_on_stream(
dm,
acrtc_state,
acrtc_state->stream,
dc_plane,
bundle->flip_addrs[planes_count].flip_timestamp_in_us);
DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n",
__func__,
bundle->flip_addrs[planes_count].address.grph.addr.high_part,
bundle->flip_addrs[planes_count].address.grph.addr.low_part);
}
bundle->surface_updates[planes_count].surface = dc_plane;
if (new_pcrtc_state->color_mgmt_changed) {
bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
@ -4806,6 +4738,70 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
bundle->plane_infos[planes_count].dcc = dc_plane->dcc;
bundle->surface_updates[planes_count].plane_info = &bundle->plane_infos[planes_count];
plane_needs_flip = old_plane_state->fb && new_plane_state->fb;
pflip_present = pflip_present || plane_needs_flip;
if (!plane_needs_flip) {
planes_count += 1;
continue;
}
/*
* TODO This might fail and hence better not used, wait
* explicitly on fences instead
* and in general should be called for
* blocking commit to as per framework helpers
*/
abo = gem_to_amdgpu_bo(fb->obj[0]);
r = amdgpu_bo_reserve(abo, true);
if (unlikely(r != 0)) {
DRM_ERROR("failed to reserve buffer before flip\n");
WARN_ON(1);
}
/* Wait for all fences on this FB */
WARN_ON(reservation_object_wait_timeout_rcu(abo->tbo.resv, true, false,
MAX_SCHEDULE_TIMEOUT) < 0);
amdgpu_bo_get_tiling_flags(abo, &tiling_flags);
amdgpu_bo_unreserve(abo);
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);
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);
bundle->flip_addrs[planes_count].flip_immediate =
(crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
timestamp_ns = ktime_get_ns();
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 (!bundle->surface_updates[planes_count].surface) {
DRM_ERROR("No surface for CRTC: id=%d\n",
acrtc_attach->crtc_id);
continue;
}
if (plane == pcrtc->primary)
update_freesync_state_on_stream(
dm,
acrtc_state,
acrtc_state->stream,
dc_plane,
bundle->flip_addrs[planes_count].flip_timestamp_in_us);
DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n",
__func__,
bundle->flip_addrs[planes_count].address.grph.addr.high_part,
bundle->flip_addrs[planes_count].address.grph.addr.low_part);
planes_count += 1;
}