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drm/i915/gvt: Drop unused helper intel_vgpu_reset_gtt()

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[ Upstream commit a90c367e5af63880008e21dd199dac839e0e9e0f ]

Drop intel_vgpu_reset_gtt() as it no longer has any callers.  In addition
to eliminating dead code, this eliminates the last possible scenario where
__kvmgt_protect_table_find() can be reached without holding vgpu_lock.
Requiring vgpu_lock to be held when calling __kvmgt_protect_table_find()
will allow a protecting the gfn hash with vgpu_lock without too much fuss.

No functional change intended.

Fixes: ba25d977571e ("drm/i915/gvt: Do not destroy ppgtt_mm during vGPU D3->D0.")
Reviewed-by: Yan Zhao <yan.y.zhao@intel.com>
Tested-by: Yongwei Ma <yongwei.ma@intel.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Link: https://lore.kernel.org/r/20230729013535.1070024-11-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Christopherson 2023-07-28 18:35:16 -07:00 committed by Greg Kroah-Hartman
parent 5979985f2d
commit e18b49495a
2 changed files with 0 additions and 19 deletions
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18
drivers/gpu/drm/i915/gvt/gtt.c
View File

@ -2864,24 +2864,6 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old)
ggtt_invalidate(gvt->gt);
}
/**
* intel_vgpu_reset_gtt - reset the all GTT related status
* @vgpu: a vGPU
*
* This function is called from vfio core to reset reset all
* GTT related status, including GGTT, PPGTT, scratch page.
*
*/
void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu)
{
/* Shadow pages are only created when there is no page
* table tracking data, so remove page tracking data after
* removing the shadow pages.
*/
intel_vgpu_destroy_all_ppgtt_mm(vgpu);
intel_vgpu_reset_ggtt(vgpu, true);
}
/**
* intel_gvt_restore_ggtt - restore all vGPU's ggtt entries
* @gvt: intel gvt device

1
drivers/gpu/drm/i915/gvt/gtt.h
View File

@ -224,7 +224,6 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old);
void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu);
int intel_gvt_init_gtt(struct intel_gvt *gvt);
void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu);
void intel_gvt_clean_gtt(struct intel_gvt *gvt);
struct intel_vgpu_mm *intel_gvt_find_ppgtt_mm(struct intel_vgpu *vgpu,