Am 2020-07-29 um 4:08 a.m. schrieb Christian König:
> Am 28.07.20 um 20:27 schrieb Felix Kuehling:
>> VMAs with a pg_offs that's offset from the start of the vma_node need
>> to adjust the offset within the BO accordingly. This matches the
>> offset calculation in ttm_bo_vm_fault_reserved.
>>
>> Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
>> Tested-by: Laurent Morichetti <laurent.morichetti@xxxxxxx>
>
> Reviewed-by: Christian König <christian.koenig@xxxxxxx>
>
> Going to pick that up for inclusion in drm-misc-next.
Thanks. I'll submit it to amd-staging-drm-next so it makes its way into
our DKMS branch quickly.
Alex, would you push this to drm-fixes?
Regards,
Felix
>
>> ---
>> drivers/gpu/drm/ttm/ttm_bo_vm.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c
>> b/drivers/gpu/drm/ttm/ttm_bo_vm.c
>> index 389128b8c4dd..60b41447bec8 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
>> @@ -405,8 +405,10 @@ static int ttm_bo_vm_access_kmap(struct
>> ttm_buffer_object *bo,
>> int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
>> void *buf, int len, int write)
>> {
>> - unsigned long offset = (addr) - vma->vm_start;
>> struct ttm_buffer_object *bo = vma->vm_private_data;
>> + unsigned long offset = (addr) - vma->vm_start +
>> + ((vma->vm_pgoff - drm_vma_node_start(&bo->base.vma_node))
>> + << PAGE_SHIFT);
>> int ret;
>> if (len < 1 || (offset + len) >> PAGE_SHIFT > bo->num_pages)
>
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