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Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mpt.h')
-rw-r--r--drivers/gpu/drm/i915/gvt/mpt.h295
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h
deleted file mode 100644
index f0e5487e6688..000000000000
--- a/drivers/gpu/drm/i915/gvt/mpt.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- * Authors:
- * Eddie Dong <eddie.dong@intel.com>
- * Dexuan Cui
- * Jike Song <jike.song@intel.com>
- *
- * Contributors:
- * Zhi Wang <zhi.a.wang@intel.com>
- *
- */
-
-#ifndef _GVT_MPT_H_
-#define _GVT_MPT_H_
-
-/**
- * DOC: Hypervisor Service APIs for GVT-g Core Logic
- *
- * This is the glue layer between specific hypervisor MPT modules and GVT-g core
- * logic. Each kind of hypervisor MPT module provides a collection of function
- * callbacks and will be attached to GVT host when the driver is loading.
- * GVT-g core logic will call these APIs to request specific services from
- * hypervisor.
- */
-
-/**
- * intel_gvt_hypervisor_host_init - init GVT-g host side
- *
- * Returns:
- * Zero on success, negative error code if failed
- */
-static inline int intel_gvt_hypervisor_host_init(struct device *dev,
- void *gvt, const void *ops)
-{
- /* optional to provide */
- if (!intel_gvt_host.mpt->host_init)
- return 0;
-
- return intel_gvt_host.mpt->host_init(dev, gvt, ops);
-}
-
-/**
- * intel_gvt_hypervisor_host_exit - exit GVT-g host side
- */
-static inline void intel_gvt_hypervisor_host_exit(struct device *dev,
- void *gvt)
-{
- /* optional to provide */
- if (!intel_gvt_host.mpt->host_exit)
- return;
-
- intel_gvt_host.mpt->host_exit(dev, gvt);
-}
-
-/**
- * intel_gvt_hypervisor_attach_vgpu - call hypervisor to initialize vGPU
- * related stuffs inside hypervisor.
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_attach_vgpu(struct intel_vgpu *vgpu)
-{
- /* optional to provide */
- if (!intel_gvt_host.mpt->attach_vgpu)
- return 0;
-
- return intel_gvt_host.mpt->attach_vgpu(vgpu, &vgpu->handle);
-}
-
-/**
- * intel_gvt_hypervisor_detach_vgpu - call hypervisor to release vGPU
- * related stuffs inside hypervisor.
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline void intel_gvt_hypervisor_detach_vgpu(struct intel_vgpu *vgpu)
-{
- /* optional to provide */
- if (!intel_gvt_host.mpt->detach_vgpu)
- return;
-
- intel_gvt_host.mpt->detach_vgpu(vgpu->handle);
-}
-
-#define MSI_CAP_CONTROL(offset) (offset + 2)
-#define MSI_CAP_ADDRESS(offset) (offset + 4)
-#define MSI_CAP_DATA(offset) (offset + 8)
-#define MSI_CAP_EN 0x1
-
-/**
- * intel_gvt_hypervisor_inject_msi - inject a MSI interrupt into vGPU
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_inject_msi(struct intel_vgpu *vgpu)
-{
- unsigned long offset = vgpu->gvt->device_info.msi_cap_offset;
- u16 control, data;
- u32 addr;
- int ret;
-
- control = *(u16 *)(vgpu_cfg_space(vgpu) + MSI_CAP_CONTROL(offset));
- addr = *(u32 *)(vgpu_cfg_space(vgpu) + MSI_CAP_ADDRESS(offset));
- data = *(u16 *)(vgpu_cfg_space(vgpu) + MSI_CAP_DATA(offset));
-
- /* Do not generate MSI if MSIEN is disable */
- if (!(control & MSI_CAP_EN))
- return 0;
-
- if (WARN(control & GENMASK(15, 1), "only support one MSI format\n"))
- return -EINVAL;
-
- trace_inject_msi(vgpu->id, addr, data);
-
- ret = intel_gvt_host.mpt->inject_msi(vgpu->handle, addr, data);
- if (ret)
- return ret;
- 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_set_wp_page - set a guest page to write-protected
- * @vgpu: a vGPU
- * @p: intel_vgpu_guest_page
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_set_wp_page(struct intel_vgpu *vgpu,
- struct intel_vgpu_guest_page *p)
-{
- int ret;
-
- if (p->writeprotection)
- return 0;
-
- ret = intel_gvt_host.mpt->set_wp_page(vgpu->handle, p->gfn);
- if (ret)
- return ret;
- p->writeprotection = true;
- atomic_inc(&vgpu->gtt.n_write_protected_guest_page);
- return 0;
-}
-
-/**
- * intel_gvt_hypervisor_unset_wp_page - remove the write-protection of a
- * guest page
- * @vgpu: a vGPU
- * @p: intel_vgpu_guest_page
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_unset_wp_page(struct intel_vgpu *vgpu,
- struct intel_vgpu_guest_page *p)
-{
- int ret;
-
- if (!p->writeprotection)
- return 0;
-
- ret = intel_gvt_host.mpt->unset_wp_page(vgpu->handle, p->gfn);
- if (ret)
- return ret;
- p->writeprotection = false;
- atomic_dec(&vgpu->gtt.n_write_protected_guest_page);
- return 0;
-}
-
-/**
- * intel_gvt_hypervisor_read_gpa - copy data from GPA to host data buffer
- * @vgpu: a vGPU
- * @gpa: guest physical address
- * @buf: host data buffer
- * @len: data length
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_read_gpa(struct intel_vgpu *vgpu,
- unsigned long gpa, void *buf, unsigned long len)
-{
- return intel_gvt_host.mpt->read_gpa(vgpu->handle, gpa, buf, len);
-}
-
-/**
- * intel_gvt_hypervisor_write_gpa - copy data from host data buffer to GPA
- * @vgpu: a vGPU
- * @gpa: guest physical address
- * @buf: host data buffer
- * @len: data length
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_write_gpa(struct intel_vgpu *vgpu,
- unsigned long gpa, void *buf, unsigned long len)
-{
- return intel_gvt_host.mpt->write_gpa(vgpu->handle, gpa, buf, len);
-}
-
-/**
- * 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->handle, gfn);
-}
-
-/**
- * intel_gvt_hypervisor_map_gfn_to_mfn - map a GFN region to MFN
- * @vgpu: a vGPU
- * @gfn: guest PFN
- * @mfn: host PFN
- * @nr: amount of PFNs
- * @map: map or unmap
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_map_gfn_to_mfn(
- struct intel_vgpu *vgpu, unsigned long gfn,
- unsigned long mfn, unsigned int nr,
- bool map)
-{
- /* a MPT implementation could have MMIO mapped elsewhere */
- if (!intel_gvt_host.mpt->map_gfn_to_mfn)
- return 0;
-
- return intel_gvt_host.mpt->map_gfn_to_mfn(vgpu->handle, gfn, mfn, nr,
- map);
-}
-
-/**
- * intel_gvt_hypervisor_set_trap_area - Trap a guest PA region
- * @vgpu: a vGPU
- * @start: the beginning of the guest physical address region
- * @end: the end of the guest physical address region
- * @map: map or unmap
- *
- * Returns:
- * Zero on success, negative error code if failed.
- */
-static inline int intel_gvt_hypervisor_set_trap_area(
- struct intel_vgpu *vgpu, u64 start, u64 end, bool map)
-{
- /* a MPT implementation could have MMIO trapped elsewhere */
- if (!intel_gvt_host.mpt->set_trap_area)
- return 0;
-
- return intel_gvt_host.mpt->set_trap_area(vgpu->handle, start, end, map);
-}
-
-#endif /* _GVT_MPT_H_ */
generated by cgit (git 2.34.1) at 2025-12-26 09:33:05 +0000