This gives us the standard atomic implicit and explicit fencing rules.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Cc: Harry Wentland <harry.wentland@xxxxxxx>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Cc: Roman Li <Roman.Li@xxxxxxx>
Cc: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Cc: Jude Shih <shenshih@xxxxxxx>
Cc: Wayne Lin <Wayne.Lin@xxxxxxx>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 ++++++++-----------
1 file changed, 10 insertions(+), 13 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 2ade82cfb1ac..c5b2417adcc6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -83,6 +83,7 @@
#include <drm/drm_edid.h>
#include <drm/drm_vblank.h>
#include <drm/drm_audio_component.h>
+#include <drm/drm_gem_atomic_helper.h>
#if defined(CONFIG_DRM_AMD_DC_DCN)
#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
@@ -7627,6 +7628,10 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
goto error_unpin;
}
+ r = drm_gem_plane_helper_prepare_fb(plane, new_state);
+ if (unlikely(r != 0))
+ goto error_unpin;
+
amdgpu_bo_unreserve(rbo);
afb->address = amdgpu_bo_gpu_offset(rbo);
@@ -9160,7 +9165,6 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct dm_crtc_state *dm_old_crtc_state =
to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
int planes_count = 0, vpos, hpos;
- long r;
unsigned long flags;
struct amdgpu_bo *abo;
uint32_t target_vblank, last_flip_vblank;
@@ -9173,6 +9177,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct dc_flip_addrs flip_addrs[MAX_SURFACES];
struct dc_stream_update stream_update;
} *bundle;
+ int r;
bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
@@ -9181,6 +9186,10 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
goto cleanup;
}
+ r = drm_atomic_helper_wait_for_fences(dev, state, false);
+ if (unlikely(r))
+ DRM_ERROR("Waiting for fences timed out!");
+
/*
* Disable the cursor first if we're disabling all the planes.
* It'll remain on the screen after the planes are re-enabled
@@ -9235,18 +9244,6 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
}
abo = gem_to_amdgpu_bo(fb->obj[0]);
-
- /*
- * 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 = dma_resv_wait_timeout(abo->tbo.base.resv,
- DMA_RESV_USAGE_WRITE, false,
- msecs_to_jiffies(5000));
- if (unlikely(r <= 0))
- DRM_ERROR("Waiting for fences timed out!");
-
fill_dc_plane_info_and_addr(
dm->adev, new_plane_state,
afb->tiling_flags,
--
2.25.1
