[Intel-gfx] [PATCH v3 3/8] drm/i915/migrate: fix length calculation

Matthew Auld
2021-12-06T13:32:43Z

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.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
---
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 6f2c4388ebb4..0192b61ab541 100644
--- a/drivers/gpu/drm/i915/gt/intel_migrate.c
+++ b/drivers/gpu/drm/i915/gt/intel_migrate.c
@@ -134,7 +134,7 @@ 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