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accel/ivpu: Free buffer sgt on unbind

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Call dma_unmap() on all buffers before the VPU is unbinded to avoid
"device driver has pending DMA allocations while released from device"
warning when DMA-API debug is enabled.

Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240115134434.493839-7-jacek.lawrynowicz@linux.intel.com
This commit is contained in:
Jacek Lawrynowicz 2024-01-15 14:44:31 +01:00
parent 7f66319927
commit a8c099d5d0
1 changed files with 12 additions and 2 deletions
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14
drivers/accel/ivpu/ivpu_gem.c
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@ -112,8 +112,6 @@ static void ivpu_bo_unbind_locked(struct ivpu_bo *bo)
ivpu_dbg_bo(vdev, bo, "unbind");
/* TODO: dma_unmap */
if (bo->mmu_mapped) {
drm_WARN_ON(&vdev->drm, !bo->ctx);
drm_WARN_ON(&vdev->drm, !bo->vpu_addr);
@ -127,6 +125,18 @@ static void ivpu_bo_unbind_locked(struct ivpu_bo *bo)
bo->vpu_addr = 0;
bo->ctx = NULL;
}
if (bo->base.base.import_attach)
return;
dma_resv_lock(bo->base.base.resv, NULL);
if (bo->base.sgt) {
dma_unmap_sgtable(vdev->drm.dev, bo->base.sgt, DMA_BIDIRECTIONAL, 0);
sg_free_table(bo->base.sgt);
kfree(bo->base.sgt);
bo->base.sgt = NULL;
}
dma_resv_unlock(bo->base.base.resv);
}
static void ivpu_bo_unbind(struct ivpu_bo *bo)