drm/i915/gvt: remove the unused from_virt_to_mfn op

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-10-hch@lst.deReviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>

drivers/gpu/drm/i915/gvt/hypercall.h

@@ -47,7 +47,6 @@ struct intel_gvt_mpt {
 	int (*attach_vgpu)(void *vgpu, unsigned long *handle);
 	void (*detach_vgpu)(void *vgpu);
 	int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
-	unsigned long (*from_virt_to_mfn)(void *p);
 	int (*enable_page_track)(unsigned long handle, u64 gfn);
 	int (*disable_page_track)(unsigned long handle, u64 gfn);
 	int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,

drivers/gpu/drm/i915/gvt/kvmgt.c

@@ -2192,11 +2192,6 @@ static int kvmgt_write_gpa(unsigned long handle, unsigned long gpa,
 	return kvmgt_rw_gpa(handle, gpa, buf, len, true);
 }
 
-static unsigned long kvmgt_virt_to_pfn(void *addr)
-{
-	return PFN_DOWN(__pa(addr));
-}
-
 static bool kvmgt_is_valid_gfn(unsigned long handle, unsigned long gfn)
 {
 	struct kvmgt_guest_info *info;
@@ -2223,7 +2218,6 @@ static const struct intel_gvt_mpt kvmgt_mpt = {
 	.attach_vgpu = kvmgt_attach_vgpu,
 	.detach_vgpu = kvmgt_detach_vgpu,
 	.inject_msi = kvmgt_inject_msi,
-	.from_virt_to_mfn = kvmgt_virt_to_pfn,
 	.enable_page_track = kvmgt_page_track_add,
 	.disable_page_track = kvmgt_page_track_remove,
 	.read_gpa = kvmgt_read_gpa,

drivers/gpu/drm/i915/gvt/mpt.h

@@ -140,18 +140,6 @@ static inline int intel_gvt_hypervisor_inject_msi(struct intel_vgpu *vgpu)
 	return 0;
 }
 
-/**
- * intel_gvt_hypervisor_set_wp_page - translate a host VA into MFN
- * @p: host kernel virtual address
- *
- * Returns:
- * MFN on success, INTEL_GVT_INVALID_ADDR if failed.
- */
-static inline unsigned long intel_gvt_hypervisor_virt_to_mfn(void *p)
-{
-	return intel_gvt_host.mpt->from_virt_to_mfn(p);
-}
-
 /**
  * intel_gvt_hypervisor_enable_page_track - track a guest page
  * @vgpu: a vGPU