Re: [PATCH v2 5/8] drm/i915/migrate: fix length calculation

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On 2021-12-03 at 12:24:23 +0000, Matthew Auld wrote:
> No need to insert PTEs for the PTE window itself, also foreach expects a
> length not an end offset, which could be gigantic here with a second
> engine.
> 
Looks good to me

Reviewed-by: Ramalingam C <ramalingam.c@xxxxxxxxx>

> Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
> Cc: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
> Cc: Ramalingam C <ramalingam.c@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/gt/intel_migrate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c b/drivers/gpu/drm/i915/gt/intel_migrate.c
> index cb0bb3b94644..2076e24e0489 100644
> --- a/drivers/gpu/drm/i915/gt/intel_migrate.c
> +++ b/drivers/gpu/drm/i915/gt/intel_migrate.c
> @@ -136,7 +136,7 @@ static struct i915_address_space *migrate_vm(struct intel_gt *gt)
>  			goto err_vm;
>  
>  		/* Now allow the GPU to rewrite the PTE via its own ppGTT */
> -		vm->vm.foreach(&vm->vm, base, base + sz, insert_pte, &d);
> +		vm->vm.foreach(&vm->vm, base, d.offset - base, insert_pte, &d);
>  	}
>  
>  	return &vm->vm;
> -- 
> 2.31.1
> 



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