Re: [PATCH] drm/msm/iommu: optimize map/unmap

2022-08-24 Thread Sai Prakash Ranjan
Hi Rob, On 8/23/2022 12:17 AM, Rob Clark wrote: From: Rob Clark Using map_pages/unmap_pages cuts down on the # of pgtable walks needed in the process of finding where to insert/remove an entry. The end result is ~5-10x faster than mapping a single page at a time. Signed-off-by: Rob Clark

[PATCH] drm/msm/iommu: optimize map/unmap

2022-08-22 Thread Rob Clark
From: Rob Clark Using map_pages/unmap_pages cuts down on the # of pgtable walks needed in the process of finding where to insert/remove an entry. The end result is ~5-10x faster than mapping a single page at a time. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_iommu.c | 91