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panvk: Flush pending map syncs before submission

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Flush deferred CPU sync ops so we can make CPU changes visible to the GPU.
This is currently a NOP because we haven't enabled cached mappings in
panvk yet, but we need to prepare for that before we progressively
switch each relevant buffer to use writeback CPU mappings.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36385>
This commit is contained in:
Boris Brezillon 2025-09-17 10:27:12 +02:00
parent 3ae96f3cfd
commit 1e6ea0697a
2 changed files with 10 additions and 0 deletions
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6
src/panfrost/vulkan/csf/panvk_vX_gpu_queue.c
View file

@ -511,6 +511,8 @@ init_subqueue(struct panvk_gpu_queue *queue, enum panvk_subqueue_id subqueue)
.queue_submits = DRM_PANTHOR_OBJ_ARRAY(1, &qsubmit), .queue_submits = DRM_PANTHOR_OBJ_ARRAY(1, &qsubmit),
}; };
pan_kmod_flush_bo_map_syncs(dev->kmod.dev);
int ret = pan_kmod_ioctl(dev->drm_fd, DRM_IOCTL_PANTHOR_GROUP_SUBMIT, int ret = pan_kmod_ioctl(dev->drm_fd, DRM_IOCTL_PANTHOR_GROUP_SUBMIT,
&gsubmit); &gsubmit);
if (ret) if (ret)
@ -1136,6 +1138,10 @@ panvk_queue_submit_ioctl(struct panvk_queue_submit *submit)
} }
} }
/* Flush pending synchronization requests before submitting the job, to
* make sure things are GPU-visible. */
pan_kmod_flush_bo_map_syncs(dev->kmod.dev);
struct drm_panthor_group_submit gsubmit = { struct drm_panthor_group_submit gsubmit = {
.group_handle = queue->group_handle, .group_handle = queue->group_handle,
.queue_submits = .queue_submits =

4
src/panfrost/vulkan/jm/panvk_vX_gpu_queue.c
View file

@ -56,6 +56,10 @@ panvk_queue_submit_batch(struct panvk_gpu_queue *queue, struct panvk_batch *batc
} }
} }
/* Flush pending synchronization requests before submitting the job, to
* make sure things are GPU-visible. */
pan_kmod_flush_bo_map_syncs(dev->kmod.dev);
if (batch->vtc_jc.first_job) { if (batch->vtc_jc.first_job) {
struct drm_panfrost_submit submit = { struct drm_panfrost_submit submit = {
.bo_handles = (uintptr_t)bos, .bo_handles = (uintptr_t)bos,