drm/amdgpu: Fix comparison in amdgpu_res_cpu_visible

It incorrectly claimed a resource isn't CPU visible if it's located at
the very end of CPU visible VRAM.

Fixes: a6ff969fe9cb ("drm/amdgpu: fix visible VRAM handling during faults")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3343
Reviewed-by: Christian König <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reported-and-Tested-by: Jeremy Day <[email protected]>
Signed-off-by: Michel Dänzer <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
CC: [email protected]

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 109fe557a02bc85d562310bdc5fff082ecf8f2ba..29c197c000187189cc9e5eba93a693e306a74bd3 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -427,7 +427,7 @@ bool amdgpu_res_cpu_visible(struct amdgpu_device *adev,
 
        amdgpu_res_first(res, 0, res->size, &cursor);
        while (cursor.remaining) {
-               if ((cursor.start + cursor.size) >= adev->gmc.visible_vram_size)
+               if ((cursor.start + cursor.size) > adev->gmc.visible_vram_size)
                        return false;
                amdgpu_res_next(&cursor, cursor.size);
        }