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drm/amdkfd: Insert missing TLB flush on GFX10 and later

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[ Upstream commit edcfe22985d09ee8e2346c9217f5a52ab150099f ]

Heavy-weight TLB flush is required after unmap on all GPUs for
correctness and security.

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Harish Kasiviswanathan 2023-09-11 14:49:06 -04:00 • committed by Greg Kroah-Hartman
parent 9becfff9f9
commit cdfcaa4e80
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
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@ -1349,8 +1349,7 @@ void kfd_flush_tlb(struct kfd_process_device *pdd, enum TLB_FLUSH_TYPE type);
static inline bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev)
{
return KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 3) ||
KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2) ||
return KFD_GC_VERSION(dev) > IP_VERSION(9, 4, 2) ||
(KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) && dev->sdma_fw_version >= 18) ||
KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 0);
}