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authorChristoph Hellwig <hch@lst.de>2022-04-11 16:13:48 +0200
committerZhi Wang <zhi.a.wang@intel.com>2022-04-21 07:36:56 -0400
commit4050dab5981cd48f67d2367fa90ae030bcc8f7dd (patch)
tree72725bf3942e333b9434be0f9fdab11781985f62
parentbd73b4b193d45074ff48705d21d4fbecc3fcfac8 (diff)
downloadlinux-4050dab5981cd48f67d2367fa90ae030bcc8f7dd.tar.bz2
drm/i915/gvt: devirtualize ->gfn_to_mfn
Just open code it in the only caller. 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/20220411141403.86980-20-hch@lst.de Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
-rw-r--r--drivers/gpu/drm/i915/gvt/gtt.c9
-rw-r--r--drivers/gpu/drm/i915/gvt/hypercall.h1
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c16
-rw-r--r--drivers/gpu/drm/i915/gvt/mpt.h14
4 files changed, 5 insertions, 35 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 1360412f8ef8..f6f3b22a70d2 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -1178,15 +1178,16 @@ static int is_2MB_gtt_possible(struct intel_vgpu *vgpu,
struct intel_gvt_gtt_entry *entry)
{
const struct intel_gvt_gtt_pte_ops *ops = vgpu->gvt->gtt.pte_ops;
- unsigned long pfn;
+ kvm_pfn_t pfn;
if (!HAS_PAGE_SIZES(vgpu->gvt->gt->i915, I915_GTT_PAGE_SIZE_2M))
return 0;
- pfn = intel_gvt_hypervisor_gfn_to_mfn(vgpu, ops->get_pfn(entry));
- if (pfn == INTEL_GVT_INVALID_ADDR)
+ if (!vgpu->attached)
+ return -EINVAL;
+ pfn = gfn_to_pfn(vgpu->kvm, ops->get_pfn(entry));
+ if (is_error_noslot_pfn(pfn))
return -EINVAL;
-
return PageTransHuge(pfn_to_page(pfn));
}
diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h
index c1a9eeed0460..dbde492cafc8 100644
--- a/drivers/gpu/drm/i915/gvt/hypercall.h
+++ b/drivers/gpu/drm/i915/gvt/hypercall.h
@@ -47,7 +47,6 @@ struct intel_gvt_mpt {
void (*host_exit)(struct device *dev, void *gvt);
int (*enable_page_track)(struct intel_vgpu *vgpu, u64 gfn);
int (*disable_page_track)(struct intel_vgpu *vgpu, u64 gfn);
- unsigned long (*gfn_to_mfn)(struct intel_vgpu *vgpu, unsigned long gfn);
int (*dma_map_guest_page)(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size, dma_addr_t *dma_addr);
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 93fd7f997c8a..6d4c67270172 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1874,21 +1874,6 @@ void intel_vgpu_detach_regions(struct intel_vgpu *vgpu)
vgpu->region = NULL;
}
-static unsigned long kvmgt_gfn_to_pfn(struct intel_vgpu *vgpu,
- unsigned long gfn)
-{
- kvm_pfn_t pfn;
-
- if (!vgpu->attached)
- return INTEL_GVT_INVALID_ADDR;
-
- pfn = gfn_to_pfn(vgpu->kvm, gfn);
- if (is_error_noslot_pfn(pfn))
- return INTEL_GVT_INVALID_ADDR;
-
- return pfn;
-}
-
static int kvmgt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size, dma_addr_t *dma_addr)
{
@@ -1985,7 +1970,6 @@ static const struct intel_gvt_mpt kvmgt_mpt = {
.host_exit = kvmgt_host_exit,
.enable_page_track = kvmgt_page_track_add,
.disable_page_track = kvmgt_page_track_remove,
- .gfn_to_mfn = kvmgt_gfn_to_pfn,
.dma_map_guest_page = kvmgt_dma_map_guest_page,
.dma_unmap_guest_page = kvmgt_dma_unmap_guest_page,
.dma_pin_guest_page = kvmgt_dma_pin_guest_page,
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h
index 1a796f2181ba..2d4bb6eaa08e 100644
--- a/drivers/gpu/drm/i915/gvt/mpt.h
+++ b/drivers/gpu/drm/i915/gvt/mpt.h
@@ -100,20 +100,6 @@ static inline int intel_gvt_hypervisor_disable_page_track(
}
/**
- * intel_gvt_hypervisor_gfn_to_mfn - translate a GFN to MFN
- * @vgpu: a vGPU
- * @gpfn: guest pfn
- *
- * Returns:
- * MFN on success, INTEL_GVT_INVALID_ADDR if failed.
- */
-static inline unsigned long intel_gvt_hypervisor_gfn_to_mfn(
- struct intel_vgpu *vgpu, unsigned long gfn)
-{
- return intel_gvt_host.mpt->gfn_to_mfn(vgpu, gfn);
-}
-
-/**
* intel_gvt_hypervisor_dma_map_guest_page - setup dma map for guest page
* @vgpu: a vGPU
* @gfn: guest pfn