From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Wed, 1 Mar 2023 02:28:59 +0000 (-0500)
Subject: drm/amdgpu: Optimize end of non-contig VA ranges
X-Git-Tag: v6.6.17~4917^2~28^2~73
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=13e3a038abe033b38db6313de7a9f55ac83ae422;p=platform%2Fkernel%2Flinux-rpi.git

drm/amdgpu: Optimize end of non-contig VA ranges

Treat the last page in a non-contiguous range as part of the following
contiguous range.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-and-tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b9441ab..8f00ada 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -867,6 +867,8 @@ int amdgpu_vm_update_range(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 					    pages_addr[idx - 1] + PAGE_SIZE))
 						break;
 				}
+				if (!contiguous)
+					count--;
 				num_entries = count *
 					AMDGPU_GPU_PAGES_IN_CPU_PAGE;
 			}