[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / i915 / gvt / gvt.h

/*
 * 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:
 *    Kevin Tian <kevin.tian@intel.com>
 *    Eddie Dong <eddie.dong@intel.com>
 *
 * Contributors:
 *    Niu Bing <bing.niu@intel.com>
 *    Zhi Wang <zhi.a.wang@intel.com>
 *
 */

#ifndef _GVT_H_
#define _GVT_H_

#include "debug.h"
#include "hypercall.h"
#include "mmio.h"
#include "reg.h"
#include "interrupt.h"
#include "gtt.h"
#include "display.h"
#include "edid.h"
#include "execlist.h"
#include "scheduler.h"
#include "sched_policy.h"
#include "render.h"
#include "cmd_parser.h"

#define GVT_MAX_VGPU 8

enum {
	INTEL_GVT_HYPERVISOR_XEN = 0,
	INTEL_GVT_HYPERVISOR_KVM,
};

struct intel_gvt_host {
	bool initialized;
	int hypervisor_type;
	struct intel_gvt_mpt *mpt;
};

extern struct intel_gvt_host intel_gvt_host;

/* Describe per-platform limitations. */
struct intel_gvt_device_info {
	u32 max_support_vgpus;
	u32 cfg_space_size;
	u32 mmio_size;
	u32 mmio_bar;
	unsigned long msi_cap_offset;
	u32 gtt_start_offset;
	u32 gtt_entry_size;
	u32 gtt_entry_size_shift;
	int gmadr_bytes_in_cmd;
	u32 max_surface_size;
};

/* GM resources owned by a vGPU */
struct intel_vgpu_gm {
	u64 aperture_sz;
	u64 hidden_sz;
	struct drm_mm_node low_gm_node;
	struct drm_mm_node high_gm_node;
};

#define INTEL_GVT_MAX_NUM_FENCES 32

/* Fences owned by a vGPU */
struct intel_vgpu_fence {
	struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES];
	u32 base;
	u32 size;
};

struct intel_vgpu_mmio {
	void *vreg;
	void *sreg;
	bool disable_warn_untrack;
};

#define INTEL_GVT_MAX_CFG_SPACE_SZ 256
#define INTEL_GVT_MAX_BAR_NUM 4

struct intel_vgpu_pci_bar {
	u64 size;
	bool tracked;
};

struct intel_vgpu_cfg_space {
	unsigned char virtual_cfg_space[INTEL_GVT_MAX_CFG_SPACE_SZ];
	struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM];
};

#define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space)

#define INTEL_GVT_MAX_PIPE 4

struct intel_vgpu_irq {
	bool irq_warn_once[INTEL_GVT_EVENT_MAX];
	DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE],
		       INTEL_GVT_EVENT_MAX);
};

struct intel_vgpu_opregion {
	void *va;
	u32 gfn[INTEL_GVT_OPREGION_PAGES];
	struct page *pages[INTEL_GVT_OPREGION_PAGES];
};

#define vgpu_opregion(vgpu) (&(vgpu->opregion))

#define INTEL_GVT_MAX_PORT 5

struct intel_vgpu_display {
	struct intel_vgpu_i2c_edid i2c_edid;
	struct intel_vgpu_port ports[INTEL_GVT_MAX_PORT];
	struct intel_vgpu_sbi sbi;
};

struct intel_vgpu {
	struct intel_gvt *gvt;
	int id;
	unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
	bool active;
	bool pv_notified;
	bool failsafe;
	bool resetting;
	void *sched_data;

	struct intel_vgpu_fence fence;
	struct intel_vgpu_gm gm;
	struct intel_vgpu_cfg_space cfg_space;
	struct intel_vgpu_mmio mmio;
	struct intel_vgpu_irq irq;
	struct intel_vgpu_gtt gtt;
	struct intel_vgpu_opregion opregion;
	struct intel_vgpu_display display;
	struct intel_vgpu_execlist execlist[I915_NUM_ENGINES];
	struct list_head workload_q_head[I915_NUM_ENGINES];
	struct kmem_cache *workloads;
	atomic_t running_workload_num;
	DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
	struct i915_gem_context *shadow_ctx;
	struct notifier_block shadow_ctx_notifier_block;

#if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT)
	struct {
		struct mdev_device *mdev;
		struct vfio_region *region;
		int num_regions;
		struct eventfd_ctx *intx_trigger;
		struct eventfd_ctx *msi_trigger;
		struct rb_root cache;
		struct mutex cache_lock;
		struct notifier_block iommu_notifier;
		struct notifier_block group_notifier;
		struct kvm *kvm;
		struct work_struct release_work;
		atomic_t released;
	} vdev;
#endif
};

struct intel_gvt_gm {
	unsigned long vgpu_allocated_low_gm_size;
	unsigned long vgpu_allocated_high_gm_size;
};

struct intel_gvt_fence {
	unsigned long vgpu_allocated_fence_num;
};

#define INTEL_GVT_MMIO_HASH_BITS 9

struct intel_gvt_mmio {
	u32 *mmio_attribute;
	DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
};

struct intel_gvt_firmware {
	void *cfg_space;
	void *mmio;
	bool firmware_loaded;
};

struct intel_gvt_opregion {
	void *opregion_va;
	u32 opregion_pa;
};

#define NR_MAX_INTEL_VGPU_TYPES 20
struct intel_vgpu_type {
	char name[16];
	unsigned int avail_instance;
	unsigned int low_gm_size;
	unsigned int high_gm_size;
	unsigned int fence;
	enum intel_vgpu_edid resolution;
};

struct intel_gvt {
	struct mutex lock;
	struct drm_i915_private *dev_priv;
	struct idr vgpu_idr;	/* vGPU IDR pool */

	struct intel_gvt_device_info device_info;
	struct intel_gvt_gm gm;
	struct intel_gvt_fence fence;
	struct intel_gvt_mmio mmio;
	struct intel_gvt_firmware firmware;
	struct intel_gvt_irq irq;
	struct intel_gvt_gtt gtt;
	struct intel_gvt_opregion opregion;
	struct intel_gvt_workload_scheduler scheduler;
	DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS);
	struct intel_vgpu_type *types;
	unsigned int num_types;

	struct task_struct *service_thread;
	wait_queue_head_t service_thread_wq;
	unsigned long service_request;
};

static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915)
{
	return i915->gvt;
}

enum {
	INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
};

static inline void intel_gvt_request_service(struct intel_gvt *gvt,
		int service)
{
	set_bit(service, (void *)&gvt->service_request);
	wake_up(&gvt->service_thread_wq);
}

void intel_gvt_free_firmware(struct intel_gvt *gvt);
int intel_gvt_load_firmware(struct intel_gvt *gvt);

/* Aperture/GM space definitions for GVT device */
#define MB_TO_BYTES(mb) ((mb) << 20ULL)
#define BYTES_TO_MB(b) ((b) >> 20ULL)

#define HOST_LOW_GM_SIZE MB_TO_BYTES(128)
#define HOST_HIGH_GM_SIZE MB_TO_BYTES(384)
#define HOST_FENCE 4

/* Aperture/GM space definitions for GVT device */
#define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_end)
#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)

#define gvt_ggtt_gm_sz(gvt)	  (gvt->dev_priv->ggtt.base.total)
#define gvt_ggtt_sz(gvt) \
	((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3)
#define gvt_hidden_sz(gvt)	  (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt))

#define gvt_aperture_gmadr_base(gvt) (0)
#define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \
				     + gvt_aperture_sz(gvt) - 1)

#define gvt_hidden_gmadr_base(gvt) (gvt_aperture_gmadr_base(gvt) \
				    + gvt_aperture_sz(gvt))
#define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \
				   + gvt_hidden_sz(gvt) - 1)

#define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs)

/* Aperture/GM space definitions for vGPU */
#define vgpu_aperture_offset(vgpu)	((vgpu)->gm.low_gm_node.start)
#define vgpu_hidden_offset(vgpu)	((vgpu)->gm.high_gm_node.start)
#define vgpu_aperture_sz(vgpu)		((vgpu)->gm.aperture_sz)
#define vgpu_hidden_sz(vgpu)		((vgpu)->gm.hidden_sz)

#define vgpu_aperture_pa_base(vgpu) \
	(gvt_aperture_pa_base(vgpu->gvt) + vgpu_aperture_offset(vgpu))

#define vgpu_ggtt_gm_sz(vgpu) ((vgpu)->gm.aperture_sz + (vgpu)->gm.hidden_sz)

#define vgpu_aperture_pa_end(vgpu) \
	(vgpu_aperture_pa_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)

#define vgpu_aperture_gmadr_base(vgpu) (vgpu_aperture_offset(vgpu))
#define vgpu_aperture_gmadr_end(vgpu) \
	(vgpu_aperture_gmadr_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)

#define vgpu_hidden_gmadr_base(vgpu) (vgpu_hidden_offset(vgpu))
#define vgpu_hidden_gmadr_end(vgpu) \
	(vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1)

#define vgpu_fence_base(vgpu) (vgpu->fence.base)
#define vgpu_fence_sz(vgpu) (vgpu->fence.size)

struct intel_vgpu_creation_params {
	__u64 handle;
	__u64 low_gm_sz;  /* in MB */
	__u64 high_gm_sz; /* in MB */
	__u64 fence_sz;
	__u64 resolution;
	__s32 primary;
	__u64 vgpu_id;
};

int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,
			      struct intel_vgpu_creation_params *param);
void intel_vgpu_reset_resource(struct intel_vgpu *vgpu);
void intel_vgpu_free_resource(struct intel_vgpu *vgpu);
void intel_vgpu_write_fence(struct intel_vgpu *vgpu,
	u32 fence, u64 value);

/* Macros for easily accessing vGPU virtual/shadow register */
#define vgpu_vreg(vgpu, reg) \
	(*(u32 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg8(vgpu, reg) \
	(*(u8 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg16(vgpu, reg) \
	(*(u16 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_vreg64(vgpu, reg) \
	(*(u64 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg(vgpu, reg) \
	(*(u32 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg8(vgpu, reg) \
	(*(u8 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg16(vgpu, reg) \
	(*(u16 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
#define vgpu_sreg64(vgpu, reg) \
	(*(u64 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))

#define for_each_active_vgpu(gvt, vgpu, id) \
	idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \
		for_each_if(vgpu->active)

static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu,
					    u32 offset, u32 val, bool low)
{
	u32 *pval;

	/* BAR offset should be 32 bits algiend */
	offset = rounddown(offset, 4);
	pval = (u32 *)(vgpu_cfg_space(vgpu) + offset);

	if (low) {
		/*
		 * only update bit 31 - bit 4,
		 * leave the bit 3 - bit 0 unchanged.
		 */
		*pval = (val & GENMASK(31, 4)) | (*pval & GENMASK(3, 0));
	} else {
		*pval = val;
	}
}

int intel_gvt_init_vgpu_types(struct intel_gvt *gvt);
void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt);

struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
					 struct intel_vgpu_type *type);
void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
				 unsigned int engine_mask);
void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);


/* validating GM functions */
#define vgpu_gmadr_is_aperture(vgpu, gmadr) \
	((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \
	 (gmadr <= vgpu_aperture_gmadr_end(vgpu)))

#define vgpu_gmadr_is_hidden(vgpu, gmadr) \
	((gmadr >= vgpu_hidden_gmadr_base(vgpu)) && \
	 (gmadr <= vgpu_hidden_gmadr_end(vgpu)))

#define vgpu_gmadr_is_valid(vgpu, gmadr) \
	 ((vgpu_gmadr_is_aperture(vgpu, gmadr) || \
	  (vgpu_gmadr_is_hidden(vgpu, gmadr))))

#define gvt_gmadr_is_aperture(gvt, gmadr) \
	 ((gmadr >= gvt_aperture_gmadr_base(gvt)) && \
	  (gmadr <= gvt_aperture_gmadr_end(gvt)))

#define gvt_gmadr_is_hidden(gvt, gmadr) \
	  ((gmadr >= gvt_hidden_gmadr_base(gvt)) && \
	   (gmadr <= gvt_hidden_gmadr_end(gvt)))

#define gvt_gmadr_is_valid(gvt, gmadr) \
	  (gvt_gmadr_is_aperture(gvt, gmadr) || \
	    gvt_gmadr_is_hidden(gvt, gmadr))

bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size);
int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu *vgpu, u64 g_addr, u64 *h_addr);
int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu *vgpu, u64 h_addr, u64 *g_addr);
int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index,
			     unsigned long *h_index);
int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index,
			     unsigned long *g_index);

void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
		bool primary);
void intel_vgpu_reset_cfg_space(struct intel_vgpu *vgpu);

int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
		void *p_data, unsigned int bytes);

int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
		void *p_data, unsigned int bytes);

void intel_gvt_clean_opregion(struct intel_gvt *gvt);
int intel_gvt_init_opregion(struct intel_gvt *gvt);

void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);

int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
void populate_pvinfo_page(struct intel_vgpu *vgpu);

struct intel_gvt_ops {
	int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *,
				unsigned int);
	int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *,
				unsigned int);
	int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *,
				unsigned int);
	int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *,
				unsigned int);
	struct intel_vgpu *(*vgpu_create)(struct intel_gvt *,
				struct intel_vgpu_type *);
	void (*vgpu_destroy)(struct intel_vgpu *);
	void (*vgpu_reset)(struct intel_vgpu *);
};


enum {
	GVT_FAILSAFE_UNSUPPORTED_GUEST,
	GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
};

#include "mpt.h"

#endif
Commit	Line	Data
0ad35fed ZW	1	/*
	2	* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	20	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	21	* SOFTWARE.
12d14cc4 ZW	22	*
	23	* Authors:
	24	* Kevin Tian <kevin.tian@intel.com>
	25	* Eddie Dong <eddie.dong@intel.com>
	26	*
	27	* Contributors:
	28	* Niu Bing <bing.niu@intel.com>
	29	* Zhi Wang <zhi.a.wang@intel.com>
	30	*
0ad35fed ZW	31	*/
	32
	33	#ifndef _GVT_H_
	34	#define _GVT_H_
	35
	36	#include "debug.h"
	37	#include "hypercall.h"
12d14cc4	38	#include "mmio.h"
82d375d1	39	#include "reg.h"
c8fe6a68	40	#include "interrupt.h"
2707e444	41	#include "gtt.h"
04d348ae ZW	42	#include "display.h"
04d348ae ZW	43	#include "edid.h"
8453d674	44	#include "execlist.h"
28c4c6ca	45	#include "scheduler.h"
4b63960e	46	#include "sched_policy.h"
17865713	47	#include "render.h"
be1da707	48	#include "cmd_parser.h"
0ad35fed ZW	49
	50	#define GVT_MAX_VGPU 8
	51
	52	enum {
	53	INTEL_GVT_HYPERVISOR_XEN = 0,
	54	INTEL_GVT_HYPERVISOR_KVM,
	55	};
	56
	57	struct intel_gvt_host {
	58	bool initialized;
	59	int hypervisor_type;
	60	struct intel_gvt_mpt *mpt;
	61	};
	62
	63	extern struct intel_gvt_host intel_gvt_host;
	64
	65	/* Describe per-platform limitations. */
	66	struct intel_gvt_device_info {
	67	u32 max_support_vgpus;
579cea5f	68	u32 cfg_space_size;
c8fe6a68	69	u32 mmio_size;
579cea5f	70	u32 mmio_bar;
c8fe6a68	71	unsigned long msi_cap_offset;
2707e444 ZW	72	u32 gtt_start_offset;
	73	u32 gtt_entry_size;
	74	u32 gtt_entry_size_shift;
be1da707 ZW	75	int gmadr_bytes_in_cmd;
be1da707 ZW	76	u32 max_surface_size;
0ad35fed ZW	77	};
0ad35fed ZW	78
28a60dee ZW	79	/* GM resources owned by a vGPU */
	80	struct intel_vgpu_gm {
	81	u64 aperture_sz;
	82	u64 hidden_sz;
	83	struct drm_mm_node low_gm_node;
	84	struct drm_mm_node high_gm_node;
	85	};
	86
	87	#define INTEL_GVT_MAX_NUM_FENCES 32
	88
	89	/* Fences owned by a vGPU */
	90	struct intel_vgpu_fence {
	91	struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES];
	92	u32 base;
	93	u32 size;
	94	};
	95
82d375d1 ZW	96	struct intel_vgpu_mmio {
	97	void *vreg;
	98	void *sreg;
e39c5add	99	bool disable_warn_untrack;
82d375d1 ZW	100	};
	101
	102	#define INTEL_GVT_MAX_CFG_SPACE_SZ 256
	103	#define INTEL_GVT_MAX_BAR_NUM 4
	104
	105	struct intel_vgpu_pci_bar {
	106	u64 size;
	107	bool tracked;
	108	};
	109
	110	struct intel_vgpu_cfg_space {
	111	unsigned char virtual_cfg_space[INTEL_GVT_MAX_CFG_SPACE_SZ];
	112	struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM];
	113	};
	114
	115	#define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space)
	116
04d348ae ZW	117	#define INTEL_GVT_MAX_PIPE 4
04d348ae ZW	118
c8fe6a68 ZW	119	struct intel_vgpu_irq {
c8fe6a68 ZW	120	bool irq_warn_once[INTEL_GVT_EVENT_MAX];
04d348ae ZW	121	DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE],
04d348ae ZW	122	INTEL_GVT_EVENT_MAX);
c8fe6a68 ZW	123	};
c8fe6a68 ZW	124
4d60c5fd ZW	125	struct intel_vgpu_opregion {
	126	void *va;
	127	u32 gfn[INTEL_GVT_OPREGION_PAGES];
	128	struct page *pages[INTEL_GVT_OPREGION_PAGES];
	129	};
	130
	131	#define vgpu_opregion(vgpu) (&(vgpu->opregion))
	132
04d348ae ZW	133	#define INTEL_GVT_MAX_PORT 5
	134
	135	struct intel_vgpu_display {
	136	struct intel_vgpu_i2c_edid i2c_edid;
	137	struct intel_vgpu_port ports[INTEL_GVT_MAX_PORT];
	138	struct intel_vgpu_sbi sbi;
	139	};
	140
0ad35fed ZW	141	struct intel_vgpu {
	142	struct intel_gvt *gvt;
	143	int id;
	144	unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
82d375d1	145	bool active;
fd64be63 MH	146	bool pv_notified;
fd64be63 MH	147	bool failsafe;
82d375d1	148	bool resetting;
4b63960e	149	void *sched_data;
28a60dee ZW	150
	151	struct intel_vgpu_fence fence;
	152	struct intel_vgpu_gm gm;
82d375d1 ZW	153	struct intel_vgpu_cfg_space cfg_space;
82d375d1 ZW	154	struct intel_vgpu_mmio mmio;
c8fe6a68	155	struct intel_vgpu_irq irq;
2707e444	156	struct intel_vgpu_gtt gtt;
4d60c5fd	157	struct intel_vgpu_opregion opregion;
04d348ae	158	struct intel_vgpu_display display;
8453d674	159	struct intel_vgpu_execlist execlist[I915_NUM_ENGINES];
28c4c6ca ZW	160	struct list_head workload_q_head[I915_NUM_ENGINES];
28c4c6ca ZW	161	struct kmem_cache *workloads;
e4734057	162	atomic_t running_workload_num;
17865713	163	DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
e4734057 ZW	164	struct i915_gem_context *shadow_ctx;
e4734057 ZW	165	struct notifier_block shadow_ctx_notifier_block;
f30437c5 JS	166
	167	#if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT)
	168	struct {
659643f7	169	struct mdev_device *mdev;
f30437c5 JS	170	struct vfio_region *region;
	171	int num_regions;
	172	struct eventfd_ctx *intx_trigger;
	173	struct eventfd_ctx *msi_trigger;
	174	struct rb_root cache;
	175	struct mutex cache_lock;
f30437c5	176	struct notifier_block iommu_notifier;
659643f7 JS	177	struct notifier_block group_notifier;
	178	struct kvm *kvm;
	179	struct work_struct release_work;
364fb6b7	180	atomic_t released;
f30437c5 JS	181	} vdev;
f30437c5 JS	182	#endif
28a60dee ZW	183	};
	184
	185	struct intel_gvt_gm {
	186	unsigned long vgpu_allocated_low_gm_size;
	187	unsigned long vgpu_allocated_high_gm_size;
	188	};
	189
	190	struct intel_gvt_fence {
	191	unsigned long vgpu_allocated_fence_num;
0ad35fed ZW	192	};
0ad35fed ZW	193
12d14cc4 ZW	194	#define INTEL_GVT_MMIO_HASH_BITS 9
	195
	196	struct intel_gvt_mmio {
	197	u32 *mmio_attribute;
	198	DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
	199	};
	200
579cea5f ZW	201	struct intel_gvt_firmware {
	202	void *cfg_space;
	203	void *mmio;
	204	bool firmware_loaded;
	205	};
	206
4d60c5fd	207	struct intel_gvt_opregion {
f655e67a	208	void *opregion_va;
4d60c5fd ZW	209	u32 opregion_pa;
	210	};
	211
1f31c829 ZW	212	#define NR_MAX_INTEL_VGPU_TYPES 20
	213	struct intel_vgpu_type {
	214	char name[16];
1f31c829 ZW	215	unsigned int avail_instance;
	216	unsigned int low_gm_size;
	217	unsigned int high_gm_size;
	218	unsigned int fence;
d1a513be	219	enum intel_vgpu_edid resolution;
1f31c829 ZW	220	};
1f31c829 ZW	221
0ad35fed ZW	222	struct intel_gvt {
0ad35fed ZW	223	struct mutex lock;
0ad35fed ZW	224	struct drm_i915_private *dev_priv;
	225	struct idr vgpu_idr; /* vGPU IDR pool */
	226
	227	struct intel_gvt_device_info device_info;
28a60dee ZW	228	struct intel_gvt_gm gm;
28a60dee ZW	229	struct intel_gvt_fence fence;
12d14cc4	230	struct intel_gvt_mmio mmio;
579cea5f	231	struct intel_gvt_firmware firmware;
c8fe6a68	232	struct intel_gvt_irq irq;
2707e444	233	struct intel_gvt_gtt gtt;
4d60c5fd	234	struct intel_gvt_opregion opregion;
28c4c6ca	235	struct intel_gvt_workload_scheduler scheduler;
be1da707	236	DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS);
1f31c829 ZW	237	struct intel_vgpu_type *types;
1f31c829 ZW	238	unsigned int num_types;
04d348ae ZW	239
	240	struct task_struct *service_thread;
	241	wait_queue_head_t service_thread_wq;
	242	unsigned long service_request;
0ad35fed ZW	243	};
0ad35fed ZW	244
feddf6e8 ZW	245	static inline struct intel_gvt to_gvt(struct drm_i915_private i915)
	246	{
	247	return i915->gvt;
	248	}
	249
04d348ae ZW	250	enum {
	251	INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
	252	};
	253
	254	static inline void intel_gvt_request_service(struct intel_gvt *gvt,
	255	int service)
	256	{
	257	set_bit(service, (void *)&gvt->service_request);
	258	wake_up(&gvt->service_thread_wq);
	259	}
	260
579cea5f ZW	261	void intel_gvt_free_firmware(struct intel_gvt *gvt);
	262	int intel_gvt_load_firmware(struct intel_gvt *gvt);
	263
1f31c829 ZW	264	/* Aperture/GM space definitions for GVT device */
	265	#define MB_TO_BYTES(mb) ((mb) << 20ULL)
	266	#define BYTES_TO_MB(b) ((b) >> 20ULL)
	267
	268	#define HOST_LOW_GM_SIZE MB_TO_BYTES(128)
	269	#define HOST_HIGH_GM_SIZE MB_TO_BYTES(384)
	270	#define HOST_FENCE 4
	271
28a60dee ZW	272	/* Aperture/GM space definitions for GVT device */
	273	#define gvt_aperture_sz(gvt) (gvt->dev_priv->ggtt.mappable_end)
	274	#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
	275
	276	#define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.base.total)
e39c5add ZW	277	#define gvt_ggtt_sz(gvt) \
e39c5add ZW	278	((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3)
28a60dee ZW	279	#define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt))
	280
	281	#define gvt_aperture_gmadr_base(gvt) (0)
	282	#define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \
	283	+ gvt_aperture_sz(gvt) - 1)
	284
	285	#define gvt_hidden_gmadr_base(gvt) (gvt_aperture_gmadr_base(gvt) \
	286	+ gvt_aperture_sz(gvt))
	287	#define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \
	288	+ gvt_hidden_sz(gvt) - 1)
	289
	290	#define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs)
	291
	292	/* Aperture/GM space definitions for vGPU */
	293	#define vgpu_aperture_offset(vgpu) ((vgpu)->gm.low_gm_node.start)
	294	#define vgpu_hidden_offset(vgpu) ((vgpu)->gm.high_gm_node.start)
	295	#define vgpu_aperture_sz(vgpu) ((vgpu)->gm.aperture_sz)
	296	#define vgpu_hidden_sz(vgpu) ((vgpu)->gm.hidden_sz)
	297
	298	#define vgpu_aperture_pa_base(vgpu) \
	299	(gvt_aperture_pa_base(vgpu->gvt) + vgpu_aperture_offset(vgpu))
	300
	301	#define vgpu_ggtt_gm_sz(vgpu) ((vgpu)->gm.aperture_sz + (vgpu)->gm.hidden_sz)
	302
	303	#define vgpu_aperture_pa_end(vgpu) \
	304	(vgpu_aperture_pa_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
	305
	306	#define vgpu_aperture_gmadr_base(vgpu) (vgpu_aperture_offset(vgpu))
	307	#define vgpu_aperture_gmadr_end(vgpu) \
	308	(vgpu_aperture_gmadr_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
	309
	310	#define vgpu_hidden_gmadr_base(vgpu) (vgpu_hidden_offset(vgpu))
	311	#define vgpu_hidden_gmadr_end(vgpu) \
	312	(vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1)
	313
	314	#define vgpu_fence_base(vgpu) (vgpu->fence.base)
	315	#define vgpu_fence_sz(vgpu) (vgpu->fence.size)
	316
	317	struct intel_vgpu_creation_params {
	318	__u64 handle;
	319	__u64 low_gm_sz; /* in MB */
	320	__u64 high_gm_sz; /* in MB */
	321	__u64 fence_sz;
d1a513be	322	__u64 resolution;
28a60dee ZW	323	__s32 primary;
	324	__u64 vgpu_id;
	325	};
	326
	327	int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,
	328	struct intel_vgpu_creation_params *param);
d22a48bf	329	void intel_vgpu_reset_resource(struct intel_vgpu *vgpu);
28a60dee ZW	330	void intel_vgpu_free_resource(struct intel_vgpu *vgpu);
	331	void intel_vgpu_write_fence(struct intel_vgpu *vgpu,
	332	u32 fence, u64 value);
	333
82d375d1 ZW	334	/* Macros for easily accessing vGPU virtual/shadow register */
	335	#define vgpu_vreg(vgpu, reg) \
	336	((u32 )(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
	337	#define vgpu_vreg8(vgpu, reg) \
	338	((u8 )(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
	339	#define vgpu_vreg16(vgpu, reg) \
	340	((u16 )(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
	341	#define vgpu_vreg64(vgpu, reg) \
	342	((u64 )(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
	343	#define vgpu_sreg(vgpu, reg) \
	344	((u32 )(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
	345	#define vgpu_sreg8(vgpu, reg) \
	346	((u8 )(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
	347	#define vgpu_sreg16(vgpu, reg) \
	348	((u16 )(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
	349	#define vgpu_sreg64(vgpu, reg) \
	350	((u64 )(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
	351
	352	#define for_each_active_vgpu(gvt, vgpu, id) \
	353	idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \
	354	for_each_if(vgpu->active)
	355
	356	static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu,
	357	u32 offset, u32 val, bool low)
	358	{
	359	u32 *pval;
	360
	361	/* BAR offset should be 32 bits algiend */
	362	offset = rounddown(offset, 4);
	363	pval = (u32 *)(vgpu_cfg_space(vgpu) + offset);
	364
	365	if (low) {
	366	/*
	367	* only update bit 31 - bit 4,
	368	* leave the bit 3 - bit 0 unchanged.
	369	*/
	370	pval = (val & GENMASK(31, 4)) \| (pval & GENMASK(3, 0));
550dd77e XC	371	} else {
550dd77e XC	372	*pval = val;
82d375d1 ZW	373	}
	374	}
	375
1f31c829 ZW	376	int intel_gvt_init_vgpu_types(struct intel_gvt *gvt);
1f31c829 ZW	377	void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt);
82d375d1	378
1f31c829 ZW	379	struct intel_vgpu intel_gvt_create_vgpu(struct intel_gvt gvt,
1f31c829 ZW	380	struct intel_vgpu_type *type);
82d375d1	381	void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
cfe65f40 CD	382	void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
cfe65f40 CD	383	unsigned int engine_mask);
9ec1e66b	384	void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);
82d375d1	385
1f31c829	386
2707e444 ZW	387	/* validating GM functions */
	388	#define vgpu_gmadr_is_aperture(vgpu, gmadr) \
	389	((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \
	390	(gmadr <= vgpu_aperture_gmadr_end(vgpu)))
	391
	392	#define vgpu_gmadr_is_hidden(vgpu, gmadr) \
	393	((gmadr >= vgpu_hidden_gmadr_base(vgpu)) && \
	394	(gmadr <= vgpu_hidden_gmadr_end(vgpu)))
	395
	396	#define vgpu_gmadr_is_valid(vgpu, gmadr) \
	397	((vgpu_gmadr_is_aperture(vgpu, gmadr) \|\| \
	398	(vgpu_gmadr_is_hidden(vgpu, gmadr))))
	399
	400	#define gvt_gmadr_is_aperture(gvt, gmadr) \
	401	((gmadr >= gvt_aperture_gmadr_base(gvt)) && \
	402	(gmadr <= gvt_aperture_gmadr_end(gvt)))
	403
	404	#define gvt_gmadr_is_hidden(gvt, gmadr) \
	405	((gmadr >= gvt_hidden_gmadr_base(gvt)) && \
	406	(gmadr <= gvt_hidden_gmadr_end(gvt)))
	407
	408	#define gvt_gmadr_is_valid(gvt, gmadr) \
	409	(gvt_gmadr_is_aperture(gvt, gmadr) \|\| \
	410	gvt_gmadr_is_hidden(gvt, gmadr))
	411
	412	bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size);
	413	int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu vgpu, u64 g_addr, u64 h_addr);
	414	int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu vgpu, u64 h_addr, u64 g_addr);
	415	int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index,
	416	unsigned long *h_index);
	417	int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index,
	418	unsigned long *g_index);
4d60c5fd	419
536fc234 CD	420	void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
536fc234 CD	421	bool primary);
c64ff6c7 CD	422	void intel_vgpu_reset_cfg_space(struct intel_vgpu *vgpu);
c64ff6c7 CD	423
9ec1e66b	424	int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
4d60c5fd ZW	425	void *p_data, unsigned int bytes);
4d60c5fd ZW	426
9ec1e66b	427	int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
4d60c5fd ZW	428	void *p_data, unsigned int bytes);
	429
	430	void intel_gvt_clean_opregion(struct intel_gvt *gvt);
	431	int intel_gvt_init_opregion(struct intel_gvt *gvt);
	432
	433	void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
	434	int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);
	435
	436	int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
23736d1b	437	void populate_pvinfo_page(struct intel_vgpu *vgpu);
4d60c5fd	438
9ec1e66b JS	439	struct intel_gvt_ops {
	440	int (emulate_cfg_read)(struct intel_vgpu , unsigned int, void *,
	441	unsigned int);
	442	int (emulate_cfg_write)(struct intel_vgpu , unsigned int, void *,
	443	unsigned int);
	444	int (emulate_mmio_read)(struct intel_vgpu , u64, void *,
	445	unsigned int);
	446	int (emulate_mmio_write)(struct intel_vgpu , u64, void *,
	447	unsigned int);
	448	struct intel_vgpu (vgpu_create)(struct intel_gvt *,
	449	struct intel_vgpu_type *);
	450	void (vgpu_destroy)(struct intel_vgpu );
	451	void (vgpu_reset)(struct intel_vgpu );
	452	};
	453
	454
fd64be63 MH	455	enum {
fd64be63 MH	456	GVT_FAILSAFE_UNSUPPORTED_GUEST,
a33fc7a0	457	GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
fd64be63 MH	458	};
fd64be63 MH	459
0ad35fed ZW	460	#include "mpt.h"
	461
	462	#endif