diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mpt.h')
-rw-r--r-- | drivers/gpu/drm/i915/gvt/mpt.h | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h deleted file mode 100644 index e6c5a792a49a..000000000000 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ /dev/null @@ -1,400 +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_ - -#include "gvt.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) -{ - if (!intel_gvt_host.mpt->host_init) - return -ENODEV; - - 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); -} - -#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_enable_page_track - track a guest page - * @vgpu: a vGPU - * @gfn: the gfn of guest - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_enable_page_track( - struct intel_vgpu *vgpu, unsigned long gfn) -{ - return intel_gvt_host.mpt->enable_page_track(vgpu->handle, gfn); -} - -/** - * intel_gvt_hypervisor_disable_page_track - untrack a guest page - * @vgpu: a vGPU - * @gfn: the gfn of guest - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_disable_page_track( - struct intel_vgpu *vgpu, unsigned long gfn) -{ - return intel_gvt_host.mpt->disable_page_track(vgpu->handle, gfn); -} - -/** - * 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_dma_map_guest_page - setup dma map for guest page - * @vgpu: a vGPU - * @gfn: guest pfn - * @size: page size - * @dma_addr: retrieve allocated dma addr - * - * Returns: - * 0 on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_dma_map_guest_page( - struct intel_vgpu *vgpu, unsigned long gfn, unsigned long size, - dma_addr_t *dma_addr) -{ - return intel_gvt_host.mpt->dma_map_guest_page(vgpu->handle, gfn, size, - dma_addr); -} - -/** - * intel_gvt_hypervisor_dma_unmap_guest_page - cancel dma map for guest page - * @vgpu: a vGPU - * @dma_addr: the mapped dma addr - */ -static inline void intel_gvt_hypervisor_dma_unmap_guest_page( - struct intel_vgpu *vgpu, dma_addr_t dma_addr) -{ - intel_gvt_host.mpt->dma_unmap_guest_page(vgpu->handle, dma_addr); -} - -/** - * 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->handle, dma_addr); -} - -/** - * 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); -} - -/** - * intel_gvt_hypervisor_set_opregion - Set opregion for guest - * @vgpu: a vGPU - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_set_opregion(struct intel_vgpu *vgpu) -{ - if (!intel_gvt_host.mpt->set_opregion) - return 0; - - return intel_gvt_host.mpt->set_opregion(vgpu); -} - -/** - * intel_gvt_hypervisor_set_edid - Set EDID region for guest - * @vgpu: a vGPU - * @port_num: display port number - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_set_edid(struct intel_vgpu *vgpu, - int port_num) -{ - if (!intel_gvt_host.mpt->set_edid) - return 0; - - return intel_gvt_host.mpt->set_edid(vgpu, port_num); -} - -/** - * intel_gvt_hypervisor_get_vfio_device - increase vfio device ref count - * @vgpu: a vGPU - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_get_vfio_device(struct intel_vgpu *vgpu) -{ - if (!intel_gvt_host.mpt->get_vfio_device) - return 0; - - return intel_gvt_host.mpt->get_vfio_device(vgpu); -} - -/** - * intel_gvt_hypervisor_put_vfio_device - decrease vfio device ref count - * @vgpu: a vGPU - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline void intel_gvt_hypervisor_put_vfio_device(struct intel_vgpu *vgpu) -{ - if (!intel_gvt_host.mpt->put_vfio_device) - return; - - intel_gvt_host.mpt->put_vfio_device(vgpu); -} - -/** - * intel_gvt_hypervisor_is_valid_gfn - check if a visible gfn - * @vgpu: a vGPU - * @gfn: guest PFN - * - * Returns: - * true on valid gfn, false on not. - */ -static inline bool intel_gvt_hypervisor_is_valid_gfn( - struct intel_vgpu *vgpu, unsigned long gfn) -{ - if (!intel_gvt_host.mpt->is_valid_gfn) - return true; - - return intel_gvt_host.mpt->is_valid_gfn(vgpu->handle, gfn); -} - -int intel_gvt_register_hypervisor(const struct intel_gvt_mpt *); -void intel_gvt_unregister_hypervisor(void); - -#endif /* _GVT_MPT_H_ */ |