drm/nouveau: we need pin_refcnt for nouveau_bo_placement_set() (50ab2e52) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/gpu/drm/nouveau/nouveau_bo.c

+9 −5

Original line number	Diff line number	Diff line
		@@ -318,7 +318,7 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)

		ret = ttm_bo_reserve(bo, false, false, false, NULL);
		if (ret)
		goto out;
		return ret;

		if (nvbo->pin_refcnt && !(memtype & (1 << bo->mem.mem_type))) {
		NV_ERROR(drm, "bo %p pinned elsewhere: 0x%08x vs 0x%08x\n", bo,
		@@ -327,14 +327,20 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)
		goto out;
		}

		if (nvbo->pin_refcnt)
		goto ref_inc;
		if (nvbo->pin_refcnt++)
		goto out;

		nouveau_bo_placement_set(nvbo, memtype, 0);

		/* drop pin_refcnt temporarily, so we don't trip the assertion
		* in nouveau_bo_move() that makes sure we're not trying to
		* move a pinned buffer
		*/
		nvbo->pin_refcnt--;
		ret = nouveau_bo_validate(nvbo, false, false);
		if (ret)
		goto out;
		nvbo->pin_refcnt++;

		switch (bo->mem.mem_type) {
		case TTM_PL_VRAM:
		@@ -347,8 +353,6 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)
		break;
		}

		ref_inc:
		nvbo->pin_refcnt++;
		out:
		ttm_bo_unreserve(bo);
		return ret;