Print an error message to help debug when such an error happens,
since there meight have other CPU page size & GPU page size combinations.
Reviewed-by: Lucas Stach <l.st...@pengutronix.de>
Signed-off-by: Sui Jingfeng <sui.jingf...@linux.dev>
---
v3:
- Pick up tags and resend.
- Slightly improve commit message.
---
drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index 7e065b3723cf..47b6242e24a0 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -298,8 +298,12 @@ int etnaviv_iommu_map_gem(struct etnaviv_iommu_context
*context,
ret = etnaviv_iommu_insert_exact(context, node,
etnaviv_obj->size, va);
else
ret = etnaviv_iommu_find_iova(context, node, etnaviv_obj->size);
- if (ret < 0)
+ if (ret) {
+ dev_err_ratelimited(context->global->dev,
+ "Insert iova failed: 0x%llx(0x%x)\n",
+ va, etnaviv_obj->size);
goto unlock;
+ }
mapping->iova = node->start;
ret = etnaviv_iommu_map(context, node->start, etnaviv_obj->size, sgt,
--
2.34.1
