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charset="utf-8" When PASID is not used, the buffer user address is set to AMDXDNA_INVALID_ADDR. As a result, heap buffer user address validation fails even though the original userspace address is available. Preserve the userspace address regardless of PASID usage so heap buffer address validation works correctly. Fixes: dbc8fd7a03cb ("accel/amdxdna: Add expandable device heap support") Signed-off-by: Lizhi Hou Reviewed-by: Mario Limonciello (AMD) --- drivers/accel/amdxdna/amdxdna_gem.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/accel/amdxdna/amdxdna_gem.c b/drivers/accel/amdxdna/am= dxdna_gem.c index 77e5fad08ae5..33cf5af98ceb 100644 --- a/drivers/accel/amdxdna/amdxdna_gem.c +++ b/drivers/accel/amdxdna/amdxdna_gem.c @@ -349,8 +349,11 @@ static int amdxdna_hmm_register(struct amdxdna_gem_obj= *abo, u32 nr_pages; int ret; =20 - if (!amdxdna_pasid_on(abo->client)) + if (!amdxdna_pasid_on(abo->client)) { + /* Need to set uva for heap uva validation */ + abo->mem.uva =3D addr; return 0; + } =20 mapp =3D kzalloc_obj(*mapp); if (!mapp) --=20 2.34.1