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drm/i915/gvt: devirtualize dma_pin_guest_page

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Just call the function directly and remove a pointless wrapper.

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/20220411141403.86980-23-hch@lst.de
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
This commit is contained in:
Christoph Hellwig
2022-04-11 16:13:51 +02:00
committed by Zhi Wang
parent 8398eee85f
commit 91879bbaf8
5 changed files with 3 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/i915/gvt/dmabuf.c
View File

@@ -42,18 +42,6 @@
#define GEN8_DECODE_PTE(pte) (pte & GENMASK_ULL(63, 12))
static int vgpu_pin_dma_address(struct intel_vgpu *vgpu,
unsigned long size,
dma_addr_t dma_addr)
{
int ret = 0;
if (intel_gvt_hypervisor_dma_pin_guest_page(vgpu, dma_addr))
ret = -EINVAL;
return ret;
}
static int vgpu_gem_get_pages(
struct drm_i915_gem_object *obj)
{
@@ -89,7 +77,7 @@ static int vgpu_gem_get_pages(
for_each_sg(st->sgl, sg, page_num, i) {
dma_addr_t dma_addr =
GEN8_DECODE_PTE(readq(&gtt_entries[i]));
if (vgpu_pin_dma_address(vgpu, PAGE_SIZE, dma_addr)) {
if (intel_gvt_dma_pin_guest_page(vgpu, dma_addr)) {
ret = -EINVAL;
goto out;
}

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

@@ -767,6 +767,7 @@ void intel_gvt_debugfs_clean(struct intel_gvt *gvt);
int intel_gvt_page_track_add(struct intel_vgpu *info, u64 gfn);
int intel_gvt_page_track_remove(struct intel_vgpu *info, u64 gfn);
int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr);
int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size, dma_addr_t *dma_addr);
void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu,

2
drivers/gpu/drm/i915/gvt/hypercall.h
View File

@@ -45,8 +45,6 @@ struct intel_vgpu;
struct intel_gvt_mpt {
int (*host_init)(struct device *dev, void *gvt);
void (*host_exit)(struct device *dev, void *gvt);
int (*dma_pin_guest_page)(struct intel_vgpu *vgpu, dma_addr_t dma_addr);
};
#endif /* _GVT_HYPERCALL_H_ */

4
drivers/gpu/drm/i915/gvt/kvmgt.c
View File

@@ -1921,8 +1921,7 @@ int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
return ret;
}
static int kvmgt_dma_pin_guest_page(struct intel_vgpu *vgpu,
dma_addr_t dma_addr)
int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr)
{
struct gvt_dma *entry;
int ret = 0;
@@ -1968,7 +1967,6 @@ void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu,
static const struct intel_gvt_mpt kvmgt_mpt = {
.host_init = kvmgt_host_init,
.host_exit = kvmgt_host_exit,
.dma_pin_guest_page = kvmgt_dma_pin_guest_page,
};
struct intel_gvt_host intel_gvt_host = {

15
drivers/gpu/drm/i915/gvt/mpt.h
View File

@@ -71,19 +71,4 @@ static inline void intel_gvt_hypervisor_host_exit(struct device *dev, void *gvt)
intel_gvt_host.mpt->host_exit(dev, gvt);
}
/**
* intel_gvt_hypervisor_dma_pin_guest_page - pin guest dma buf
* @vgpu: a vGPU
* @dma_addr: guest dma addr
*
* Returns:
* 0 on success, negative error code if failed.
*/
static inline int
intel_gvt_hypervisor_dma_pin_guest_page(struct intel_vgpu *vgpu,
dma_addr_t dma_addr)
{
return intel_gvt_host.mpt->dma_pin_guest_page(vgpu, dma_addr);
}
#endif /* _GVT_MPT_H_ */