/*
 * 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:
 *    Ke Yu
 *    Kevin Tian <kevin.tian@intel.com>
 *    Zhiyuan Lv <zhiyuan.lv@intel.com>
 *
 * Contributors:
 *    Min He <min.he@intel.com>
 *    Ping Gao <ping.a.gao@intel.com>
 *    Tina Zhang <tina.zhang@intel.com>
 *    Yulei Zhang <yulei.zhang@intel.com>
 *    Zhi Wang <zhi.a.wang@intel.com>
 *
 */

#include <linux/slab.h>
#include "i915_drv.h"
#include "gvt.h"
#include "i915_pvinfo.h"
#include "trace.h"

#define INVALID_OP    (~0U)

#define OP_LEN_MI           9
#define OP_LEN_2D           10
#define OP_LEN_3D_MEDIA     16
#define OP_LEN_MFX_VC       16
#define OP_LEN_VEBOX        16

#define CMD_TYPE(cmd)   (((cmd) >> 29) & 7)

struct sub_op_bits {
        int hi;
        int low;
};
struct decode_info {
        const char *name;
        int op_len;
        int nr_sub_op;
        const struct sub_op_bits *sub_op;
};

#define   MAX_CMD_BUDGET                        0x7fffffff
#define   MI_WAIT_FOR_PLANE_C_FLIP_PENDING      (1<<15)
#define   MI_WAIT_FOR_PLANE_B_FLIP_PENDING      (1<<9)
#define   MI_WAIT_FOR_PLANE_A_FLIP_PENDING      (1<<1)

#define   MI_WAIT_FOR_SPRITE_C_FLIP_PENDING      (1<<20)
#define   MI_WAIT_FOR_SPRITE_B_FLIP_PENDING      (1<<10)
#define   MI_WAIT_FOR_SPRITE_A_FLIP_PENDING      (1<<2)

/* Render Command Map */

/* MI_* command Opcode (28:23) */
#define OP_MI_NOOP                          0x0
#define OP_MI_SET_PREDICATE                 0x1  /* HSW+ */
#define OP_MI_USER_INTERRUPT                0x2
#define OP_MI_WAIT_FOR_EVENT                0x3
#define OP_MI_FLUSH                         0x4
#define OP_MI_ARB_CHECK                     0x5
#define OP_MI_RS_CONTROL                    0x6  /* HSW+ */
#define OP_MI_REPORT_HEAD                   0x7
#define OP_MI_ARB_ON_OFF                    0x8
#define OP_MI_URB_ATOMIC_ALLOC              0x9  /* HSW+ */
#define OP_MI_BATCH_BUFFER_END              0xA
#define OP_MI_SUSPEND_FLUSH                 0xB
#define OP_MI_PREDICATE                     0xC  /* IVB+ */
#define OP_MI_TOPOLOGY_FILTER               0xD  /* IVB+ */
#define OP_MI_SET_APPID                     0xE  /* IVB+ */
#define OP_MI_RS_CONTEXT                    0xF  /* HSW+ */
#define OP_MI_LOAD_SCAN_LINES_INCL          0x12 /* HSW+ */
#define OP_MI_DISPLAY_FLIP                  0x14
#define OP_MI_SEMAPHORE_MBOX                0x16
#define OP_MI_SET_CONTEXT                   0x18
#define OP_MI_MATH                          0x1A
#define OP_MI_URB_CLEAR                     0x19
#define OP_MI_SEMAPHORE_SIGNAL              0x1B  /* BDW+ */
#define OP_MI_SEMAPHORE_WAIT                0x1C  /* BDW+ */

#define OP_MI_STORE_DATA_IMM                0x20
#define OP_MI_STORE_DATA_INDEX              0x21
#define OP_MI_LOAD_REGISTER_IMM             0x22
#define OP_MI_UPDATE_GTT                    0x23
#define OP_MI_STORE_REGISTER_MEM            0x24
#define OP_MI_FLUSH_DW                      0x26
#define OP_MI_CLFLUSH                       0x27
#define OP_MI_REPORT_PERF_COUNT             0x28
#define OP_MI_LOAD_REGISTER_MEM             0x29  /* HSW+ */
#define OP_MI_LOAD_REGISTER_REG             0x2A  /* HSW+ */
#define OP_MI_RS_STORE_DATA_IMM             0x2B  /* HSW+ */
#define OP_MI_LOAD_URB_MEM                  0x2C  /* HSW+ */
#define OP_MI_STORE_URM_MEM                 0x2D  /* HSW+ */
#define OP_MI_2E                            0x2E  /* BDW+ */
#define OP_MI_2F                            0x2F  /* BDW+ */
#define OP_MI_BATCH_BUFFER_START            0x31

/* Bit definition for dword 0 */
#define _CMDBIT_BB_START_IN_PPGTT       (1UL << 8)

#define OP_MI_CONDITIONAL_BATCH_BUFFER_END  0x36

#define BATCH_BUFFER_ADDR_MASK ((1UL << 32) - (1U << 2))
#define BATCH_BUFFER_ADDR_HIGH_MASK ((1UL << 16) - (1U))
#define BATCH_BUFFER_ADR_SPACE_BIT(x)   (((x) >> 8) & 1U)
#define BATCH_BUFFER_2ND_LEVEL_BIT(x)   ((x) >> 22 & 1U)

/* 2D command: Opcode (28:22) */
#define OP_2D(x)    ((2<<7) | x)

#define OP_XY_SETUP_BLT                             OP_2D(0x1)
#define OP_XY_SETUP_CLIP_BLT                        OP_2D(0x3)
#define OP_XY_SETUP_MONO_PATTERN_SL_BLT             OP_2D(0x11)
#define OP_XY_PIXEL_BLT                             OP_2D(0x24)
#define OP_XY_SCANLINES_BLT                         OP_2D(0x25)
#define OP_XY_TEXT_BLT                              OP_2D(0x26)
#define OP_XY_TEXT_IMMEDIATE_BLT                    OP_2D(0x31)
#define OP_XY_COLOR_BLT                             OP_2D(0x50)
#define OP_XY_PAT_BLT                               OP_2D(0x51)
#define OP_XY_MONO_PAT_BLT                          OP_2D(0x52)
#define OP_XY_SRC_COPY_BLT                          OP_2D(0x53)
#define OP_XY_MONO_SRC_COPY_BLT                     OP_2D(0x54)
#define OP_XY_FULL_BLT                              OP_2D(0x55)
#define OP_XY_FULL_MONO_SRC_BLT                     OP_2D(0x56)
#define OP_XY_FULL_MONO_PATTERN_BLT                 OP_2D(0x57)
#define OP_XY_FULL_MONO_PATTERN_MONO_SRC_BLT        OP_2D(0x58)
#define OP_XY_MONO_PAT_FIXED_BLT                    OP_2D(0x59)
#define OP_XY_MONO_SRC_COPY_IMMEDIATE_BLT           OP_2D(0x71)
#define OP_XY_PAT_BLT_IMMEDIATE                     OP_2D(0x72)
#define OP_XY_SRC_COPY_CHROMA_BLT                   OP_2D(0x73)
#define OP_XY_FULL_IMMEDIATE_PATTERN_BLT            OP_2D(0x74)
#define OP_XY_FULL_MONO_SRC_IMMEDIATE_PATTERN_BLT   OP_2D(0x75)
#define OP_XY_PAT_CHROMA_BLT                        OP_2D(0x76)
#define OP_XY_PAT_CHROMA_BLT_IMMEDIATE              OP_2D(0x77)

/* 3D/Media Command: Pipeline Type(28:27) Opcode(26:24) Sub Opcode(23:16) */
#define OP_3D_MEDIA(sub_type, opcode, sub_opcode) \
        ((3 << 13) | ((sub_type) << 11) | ((opcode) << 8) | (sub_opcode))

#define OP_STATE_PREFETCH                       OP_3D_MEDIA(0x0, 0x0, 0x03)

#define OP_STATE_BASE_ADDRESS                   OP_3D_MEDIA(0x0, 0x1, 0x01)
#define OP_STATE_SIP                            OP_3D_MEDIA(0x0, 0x1, 0x02)
#define OP_3D_MEDIA_0_1_4                       OP_3D_MEDIA(0x0, 0x1, 0x04)

#define OP_3DSTATE_VF_STATISTICS_GM45           OP_3D_MEDIA(0x1, 0x0, 0x0B)

#define OP_PIPELINE_SELECT                      OP_3D_MEDIA(0x1, 0x1, 0x04)

#define OP_MEDIA_VFE_STATE                      OP_3D_MEDIA(0x2, 0x0, 0x0)
#define OP_MEDIA_CURBE_LOAD                     OP_3D_MEDIA(0x2, 0x0, 0x1)
#define OP_MEDIA_INTERFACE_DESCRIPTOR_LOAD      OP_3D_MEDIA(0x2, 0x0, 0x2)
#define OP_MEDIA_GATEWAY_STATE                  OP_3D_MEDIA(0x2, 0x0, 0x3)
#define OP_MEDIA_STATE_FLUSH                    OP_3D_MEDIA(0x2, 0x0, 0x4)
#define OP_MEDIA_POOL_STATE                     OP_3D_MEDIA(0x2, 0x0, 0x5)

#define OP_MEDIA_OBJECT                         OP_3D_MEDIA(0x2, 0x1, 0x0)
#define OP_MEDIA_OBJECT_PRT                     OP_3D_MEDIA(0x2, 0x1, 0x2)
#define OP_MEDIA_OBJECT_WALKER                  OP_3D_MEDIA(0x2, 0x1, 0x3)
#define OP_GPGPU_WALKER                         OP_3D_MEDIA(0x2, 0x1, 0x5)

#define OP_3DSTATE_CLEAR_PARAMS                 OP_3D_MEDIA(0x3, 0x0, 0x04) /* IVB+ */
#define OP_3DSTATE_DEPTH_BUFFER                 OP_3D_MEDIA(0x3, 0x0, 0x05) /* IVB+ */
#define OP_3DSTATE_STENCIL_BUFFER               OP_3D_MEDIA(0x3, 0x0, 0x06) /* IVB+ */
#define OP_3DSTATE_HIER_DEPTH_BUFFER            OP_3D_MEDIA(0x3, 0x0, 0x07) /* IVB+ */
#define OP_3DSTATE_VERTEX_BUFFERS               OP_3D_MEDIA(0x3, 0x0, 0x08)
#define OP_3DSTATE_VERTEX_ELEMENTS              OP_3D_MEDIA(0x3, 0x0, 0x09)
#define OP_3DSTATE_INDEX_BUFFER                 OP_3D_MEDIA(0x3, 0x0, 0x0A)
#define OP_3DSTATE_VF_STATISTICS                OP_3D_MEDIA(0x3, 0x0, 0x0B)
#define OP_3DSTATE_VF                           OP_3D_MEDIA(0x3, 0x0, 0x0C)  /* HSW+ */
#define OP_3DSTATE_CC_STATE_POINTERS            OP_3D_MEDIA(0x3, 0x0, 0x0E)
#define OP_3DSTATE_SCISSOR_STATE_POINTERS       OP_3D_MEDIA(0x3, 0x0, 0x0F)
#define OP_3DSTATE_VS                           OP_3D_MEDIA(0x3, 0x0, 0x10)
#define OP_3DSTATE_GS                           OP_3D_MEDIA(0x3, 0x0, 0x11)
#define OP_3DSTATE_CLIP                         OP_3D_MEDIA(0x3, 0x0, 0x12)
#define OP_3DSTATE_SF                           OP_3D_MEDIA(0x3, 0x0, 0x13)
#define OP_3DSTATE_WM                           OP_3D_MEDIA(0x3, 0x0, 0x14)
#define OP_3DSTATE_CONSTANT_VS                  OP_3D_MEDIA(0x3, 0x0, 0x15)
#define OP_3DSTATE_CONSTANT_GS                  OP_3D_MEDIA(0x3, 0x0, 0x16)
#define OP_3DSTATE_CONSTANT_PS                  OP_3D_MEDIA(0x3, 0x0, 0x17)
#define OP_3DSTATE_SAMPLE_MASK                  OP_3D_MEDIA(0x3, 0x0, 0x18)
#define OP_3DSTATE_CONSTANT_HS                  OP_3D_MEDIA(0x3, 0x0, 0x19) /* IVB+ */
#define OP_3DSTATE_CONSTANT_DS                  OP_3D_MEDIA(0x3, 0x0, 0x1A) /* IVB+ */
#define OP_3DSTATE_HS                           OP_3D_MEDIA(0x3, 0x0, 0x1B) /* IVB+ */
#define OP_3DSTATE_TE                           OP_3D_MEDIA(0x3, 0x0, 0x1C) /* IVB+ */
#define OP_3DSTATE_DS                           OP_3D_MEDIA(0x3, 0x0, 0x1D) /* IVB+ */
#define OP_3DSTATE_STREAMOUT                    OP_3D_MEDIA(0x3, 0x0, 0x1E) /* IVB+ */
#define OP_3DSTATE_SBE                          OP_3D_MEDIA(0x3, 0x0, 0x1F) /* IVB+ */
#define OP_3DSTATE_PS                           OP_3D_MEDIA(0x3, 0x0, 0x20) /* IVB+ */
#define OP_3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP OP_3D_MEDIA(0x3, 0x0, 0x21) /* IVB+ */
#define OP_3DSTATE_VIEWPORT_STATE_POINTERS_CC   OP_3D_MEDIA(0x3, 0x0, 0x23) /* IVB+ */
#define OP_3DSTATE_BLEND_STATE_POINTERS         OP_3D_MEDIA(0x3, 0x0, 0x24) /* IVB+ */
#define OP_3DSTATE_DEPTH_STENCIL_STATE_POINTERS OP_3D_MEDIA(0x3, 0x0, 0x25) /* IVB+ */
#define OP_3DSTATE_BINDING_TABLE_POINTERS_VS    OP_3D_MEDIA(0x3, 0x0, 0x26) /* IVB+ */
#define OP_3DSTATE_BINDING_TABLE_POINTERS_HS    OP_3D_MEDIA(0x3, 0x0, 0x27) /* IVB+ */
#define OP_3DSTATE_BINDING_TABLE_POINTERS_DS    OP_3D_MEDIA(0x3, 0x0, 0x28) /* IVB+ */
#define OP_3DSTATE_BINDING_TABLE_POINTERS_GS    OP_3D_MEDIA(0x3, 0x0, 0x29) /* IVB+ */
#define OP_3DSTATE_BINDING_TABLE_POINTERS_PS    OP_3D_MEDIA(0x3, 0x0, 0x2A) /* IVB+ */
#define OP_3DSTATE_SAMPLER_STATE_POINTERS_VS    OP_3D_MEDIA(0x3, 0x0, 0x2B) /* IVB+ */
#define OP_3DSTATE_SAMPLER_STATE_POINTERS_HS    OP_3D_MEDIA(0x3, 0x0, 0x2C) /* IVB+ */
#define OP_3DSTATE_SAMPLER_STATE_POINTERS_DS    OP_3D_MEDIA(0x3, 0x0, 0x2D) /* IVB+ */
#define OP_3DSTATE_SAMPLER_STATE_POINTERS_GS    OP_3D_MEDIA(0x3, 0x0, 0x2E) /* IVB+ */
#define OP_3DSTATE_SAMPLER_STATE_POINTERS_PS    OP_3D_MEDIA(0x3, 0x0, 0x2F) /* IVB+ */
#define OP_3DSTATE_URB_VS                       OP_3D_MEDIA(0x3, 0x0, 0x30) /* IVB+ */
#define OP_3DSTATE_URB_HS                       OP_3D_MEDIA(0x3, 0x0, 0x31) /* IVB+ */
#define OP_3DSTATE_URB_DS                       OP_3D_MEDIA(0x3, 0x0, 0x32) /* IVB+ */
#define OP_3DSTATE_URB_GS                       OP_3D_MEDIA(0x3, 0x0, 0x33) /* IVB+ */
#define OP_3DSTATE_GATHER_CONSTANT_VS           OP_3D_MEDIA(0x3, 0x0, 0x34) /* HSW+ */
#define OP_3DSTATE_GATHER_CONSTANT_GS           OP_3D_MEDIA(0x3, 0x0, 0x35) /* HSW+ */
#define OP_3DSTATE_GATHER_CONSTANT_HS           OP_3D_MEDIA(0x3, 0x0, 0x36) /* HSW+ */
#define OP_3DSTATE_GATHER_CONSTANT_DS           OP_3D_MEDIA(0x3, 0x0, 0x37) /* HSW+ */
#define OP_3DSTATE_GATHER_CONSTANT_PS           OP_3D_MEDIA(0x3, 0x0, 0x38) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTF_VS             OP_3D_MEDIA(0x3, 0x0, 0x39) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTF_PS             OP_3D_MEDIA(0x3, 0x0, 0x3A) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTI_VS             OP_3D_MEDIA(0x3, 0x0, 0x3B) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTI_PS             OP_3D_MEDIA(0x3, 0x0, 0x3C) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTB_VS             OP_3D_MEDIA(0x3, 0x0, 0x3D) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANTB_PS             OP_3D_MEDIA(0x3, 0x0, 0x3E) /* HSW+ */
#define OP_3DSTATE_DX9_LOCAL_VALID_VS           OP_3D_MEDIA(0x3, 0x0, 0x3F) /* HSW+ */
#define OP_3DSTATE_DX9_LOCAL_VALID_PS           OP_3D_MEDIA(0x3, 0x0, 0x40) /* HSW+ */
#define OP_3DSTATE_DX9_GENERATE_ACTIVE_VS       OP_3D_MEDIA(0x3, 0x0, 0x41) /* HSW+ */
#define OP_3DSTATE_DX9_GENERATE_ACTIVE_PS       OP_3D_MEDIA(0x3, 0x0, 0x42) /* HSW+ */
#define OP_3DSTATE_BINDING_TABLE_EDIT_VS        OP_3D_MEDIA(0x3, 0x0, 0x43) /* HSW+ */
#define OP_3DSTATE_BINDING_TABLE_EDIT_GS        OP_3D_MEDIA(0x3, 0x0, 0x44) /* HSW+ */
#define OP_3DSTATE_BINDING_TABLE_EDIT_HS        OP_3D_MEDIA(0x3, 0x0, 0x45) /* HSW+ */
#define OP_3DSTATE_BINDING_TABLE_EDIT_DS        OP_3D_MEDIA(0x3, 0x0, 0x46) /* HSW+ */
#define OP_3DSTATE_BINDING_TABLE_EDIT_PS        OP_3D_MEDIA(0x3, 0x0, 0x47) /* HSW+ */

#define OP_3DSTATE_VF_INSTANCING                OP_3D_MEDIA(0x3, 0x0, 0x49) /* BDW+ */
#define OP_3DSTATE_VF_SGVS                      OP_3D_MEDIA(0x3, 0x0, 0x4A) /* BDW+ */
#define OP_3DSTATE_VF_TOPOLOGY                  OP_3D_MEDIA(0x3, 0x0, 0x4B) /* BDW+ */
#define OP_3DSTATE_WM_CHROMAKEY                 OP_3D_MEDIA(0x3, 0x0, 0x4C) /* BDW+ */
#define OP_3DSTATE_PS_BLEND                     OP_3D_MEDIA(0x3, 0x0, 0x4D) /* BDW+ */
#define OP_3DSTATE_WM_DEPTH_STENCIL             OP_3D_MEDIA(0x3, 0x0, 0x4E) /* BDW+ */
#define OP_3DSTATE_PS_EXTRA                     OP_3D_MEDIA(0x3, 0x0, 0x4F) /* BDW+ */
#define OP_3DSTATE_RASTER                       OP_3D_MEDIA(0x3, 0x0, 0x50) /* BDW+ */
#define OP_3DSTATE_SBE_SWIZ                     OP_3D_MEDIA(0x3, 0x0, 0x51) /* BDW+ */
#define OP_3DSTATE_WM_HZ_OP                     OP_3D_MEDIA(0x3, 0x0, 0x52) /* BDW+ */
#define OP_3DSTATE_COMPONENT_PACKING            OP_3D_MEDIA(0x3, 0x0, 0x55) /* SKL+ */

#define OP_3DSTATE_DRAWING_RECTANGLE            OP_3D_MEDIA(0x3, 0x1, 0x00)
#define OP_3DSTATE_SAMPLER_PALETTE_LOAD0        OP_3D_MEDIA(0x3, 0x1, 0x02)
#define OP_3DSTATE_CHROMA_KEY                   OP_3D_MEDIA(0x3, 0x1, 0x04)
#define OP_SNB_3DSTATE_DEPTH_BUFFER             OP_3D_MEDIA(0x3, 0x1, 0x05)
#define OP_3DSTATE_POLY_STIPPLE_OFFSET          OP_3D_MEDIA(0x3, 0x1, 0x06)
#define OP_3DSTATE_POLY_STIPPLE_PATTERN         OP_3D_MEDIA(0x3, 0x1, 0x07)
#define OP_3DSTATE_LINE_STIPPLE                 OP_3D_MEDIA(0x3, 0x1, 0x08)
#define OP_3DSTATE_AA_LINE_PARAMS               OP_3D_MEDIA(0x3, 0x1, 0x0A)
#define OP_3DSTATE_GS_SVB_INDEX                 OP_3D_MEDIA(0x3, 0x1, 0x0B)
#define OP_3DSTATE_SAMPLER_PALETTE_LOAD1        OP_3D_MEDIA(0x3, 0x1, 0x0C)
#define OP_3DSTATE_MULTISAMPLE_BDW              OP_3D_MEDIA(0x3, 0x0, 0x0D)
#define OP_SNB_3DSTATE_STENCIL_BUFFER           OP_3D_MEDIA(0x3, 0x1, 0x0E)
#define OP_SNB_3DSTATE_HIER_DEPTH_BUFFER        OP_3D_MEDIA(0x3, 0x1, 0x0F)
#define OP_SNB_3DSTATE_CLEAR_PARAMS             OP_3D_MEDIA(0x3, 0x1, 0x10)
#define OP_3DSTATE_MONOFILTER_SIZE              OP_3D_MEDIA(0x3, 0x1, 0x11)
#define OP_3DSTATE_PUSH_CONSTANT_ALLOC_VS       OP_3D_MEDIA(0x3, 0x1, 0x12) /* IVB+ */
#define OP_3DSTATE_PUSH_CONSTANT_ALLOC_HS       OP_3D_MEDIA(0x3, 0x1, 0x13) /* IVB+ */
#define OP_3DSTATE_PUSH_CONSTANT_ALLOC_DS       OP_3D_MEDIA(0x3, 0x1, 0x14) /* IVB+ */
#define OP_3DSTATE_PUSH_CONSTANT_ALLOC_GS       OP_3D_MEDIA(0x3, 0x1, 0x15) /* IVB+ */
#define OP_3DSTATE_PUSH_CONSTANT_ALLOC_PS       OP_3D_MEDIA(0x3, 0x1, 0x16) /* IVB+ */
#define OP_3DSTATE_SO_DECL_LIST                 OP_3D_MEDIA(0x3, 0x1, 0x17)
#define OP_3DSTATE_SO_BUFFER                    OP_3D_MEDIA(0x3, 0x1, 0x18)
#define OP_3DSTATE_BINDING_TABLE_POOL_ALLOC     OP_3D_MEDIA(0x3, 0x1, 0x19) /* HSW+ */
#define OP_3DSTATE_GATHER_POOL_ALLOC            OP_3D_MEDIA(0x3, 0x1, 0x1A) /* HSW+ */
#define OP_3DSTATE_DX9_CONSTANT_BUFFER_POOL_ALLOC OP_3D_MEDIA(0x3, 0x1, 0x1B) /* HSW+ */
#define OP_3DSTATE_SAMPLE_PATTERN               OP_3D_MEDIA(0x3, 0x1, 0x1C)
#define OP_PIPE_CONTROL                         OP_3D_MEDIA(0x3, 0x2, 0x00)
#define OP_3DPRIMITIVE                          OP_3D_MEDIA(0x3, 0x3, 0x00)

/* VCCP Command Parser */

/*
 * Below MFX and VBE cmd definition is from vaapi intel driver project (BSD License)
 * git://anongit.freedesktop.org/vaapi/intel-driver
 * src/i965_defines.h
 *
 */

#define OP_MFX(pipeline, op, sub_opa, sub_opb)     \
        (3 << 13 | \
         (pipeline) << 11 | \
         (op) << 8 | \
         (sub_opa) << 5 | \
         (sub_opb))

#define OP_MFX_PIPE_MODE_SELECT                    OP_MFX(2, 0, 0, 0)  /* ALL */
#define OP_MFX_SURFACE_STATE                       OP_MFX(2, 0, 0, 1)  /* ALL */
#define OP_MFX_PIPE_BUF_ADDR_STATE                 OP_MFX(2, 0, 0, 2)  /* ALL */
#define OP_MFX_IND_OBJ_BASE_ADDR_STATE             OP_MFX(2, 0, 0, 3)  /* ALL */
#define OP_MFX_BSP_BUF_BASE_ADDR_STATE             OP_MFX(2, 0, 0, 4)  /* ALL */
#define OP_2_0_0_5                                 OP_MFX(2, 0, 0, 5)  /* ALL */
#define OP_MFX_STATE_POINTER                       OP_MFX(2, 0, 0, 6)  /* ALL */
#define OP_MFX_QM_STATE                            OP_MFX(2, 0, 0, 7)  /* IVB+ */
#define OP_MFX_FQM_STATE                           OP_MFX(2, 0, 0, 8)  /* IVB+ */
#define OP_MFX_PAK_INSERT_OBJECT                   OP_MFX(2, 0, 2, 8)  /* IVB+ */
#define OP_MFX_STITCH_OBJECT                       OP_MFX(2, 0, 2, 0xA)  /* IVB+ */

#define OP_MFD_IT_OBJECT                           OP_MFX(2, 0, 1, 9) /* ALL */

#define OP_MFX_WAIT                                OP_MFX(1, 0, 0, 0) /* IVB+ */
#define OP_MFX_AVC_IMG_STATE                       OP_MFX(2, 1, 0, 0) /* ALL */
#define OP_MFX_AVC_QM_STATE                        OP_MFX(2, 1, 0, 1) /* ALL */
#define OP_MFX_AVC_DIRECTMODE_STATE                OP_MFX(2, 1, 0, 2) /* ALL */
#define OP_MFX_AVC_SLICE_STATE                     OP_MFX(2, 1, 0, 3) /* ALL */
#define OP_MFX_AVC_REF_IDX_STATE                   OP_MFX(2, 1, 0, 4) /* ALL */
#define OP_MFX_AVC_WEIGHTOFFSET_STATE              OP_MFX(2, 1, 0, 5) /* ALL */
#define OP_MFD_AVC_PICID_STATE                     OP_MFX(2, 1, 1, 5) /* HSW+ */
#define OP_MFD_AVC_DPB_STATE                       OP_MFX(2, 1, 1, 6) /* IVB+ */
#define OP_MFD_AVC_SLICEADDR                       OP_MFX(2, 1, 1, 7) /* IVB+ */
#define OP_MFD_AVC_BSD_OBJECT                      OP_MFX(2, 1, 1, 8) /* ALL */
#define OP_MFC_AVC_PAK_OBJECT                      OP_MFX(2, 1, 2, 9) /* ALL */

#define OP_MFX_VC1_PRED_PIPE_STATE                 OP_MFX(2, 2, 0, 1) /* ALL */
#define OP_MFX_VC1_DIRECTMODE_STATE                OP_MFX(2, 2, 0, 2) /* ALL */
#define OP_MFD_VC1_SHORT_PIC_STATE                 OP_MFX(2, 2, 1, 0) /* IVB+ */
#define OP_MFD_VC1_LONG_PIC_STATE                  OP_MFX(2, 2, 1, 1) /* IVB+ */
#define OP_MFD_VC1_BSD_OBJECT                      OP_MFX(2, 2, 1, 8) /* ALL */

#define OP_MFX_MPEG2_PIC_STATE                     OP_MFX(2, 3, 0, 0) /* ALL */
#define OP_MFX_MPEG2_QM_STATE                      OP_MFX(2, 3, 0, 1) /* ALL */
#define OP_MFD_MPEG2_BSD_OBJECT                    OP_MFX(2, 3, 1, 8) /* ALL */
#define OP_MFC_MPEG2_SLICEGROUP_STATE              OP_MFX(2, 3, 2, 3) /* ALL */
#define OP_MFC_MPEG2_PAK_OBJECT                    OP_MFX(2, 3, 2, 9) /* ALL */

#define OP_MFX_2_6_0_0                             OP_MFX(2, 6, 0, 0) /* IVB+ */
#define OP_MFX_2_6_0_8                             OP_MFX(2, 6, 0, 8) /* IVB+ */
#define OP_MFX_2_6_0_9                             OP_MFX(2, 6, 0, 9) /* IVB+ */

#define OP_MFX_JPEG_PIC_STATE                      OP_MFX(2, 7, 0, 0)
#define OP_MFX_JPEG_HUFF_TABLE_STATE               OP_MFX(2, 7, 0, 2)
#define OP_MFD_JPEG_BSD_OBJECT                     OP_MFX(2, 7, 1, 8)

#define OP_VEB(pipeline, op, sub_opa, sub_opb) \
        (3 << 13 | \
         (pipeline) << 11 | \
         (op) << 8 | \
         (sub_opa) << 5 | \
         (sub_opb))

#define OP_VEB_SURFACE_STATE                       OP_VEB(2, 4, 0, 0)
#define OP_VEB_STATE                               OP_VEB(2, 4, 0, 2)
#define OP_VEB_DNDI_IECP_STATE                     OP_VEB(2, 4, 0, 3)

struct parser_exec_state;

typedef int (*parser_cmd_handler)(struct parser_exec_state *s);

#define GVT_CMD_HASH_BITS   7

/* which DWords need address fix */
#define ADDR_FIX_1(x1)                  (1 << (x1))
#define ADDR_FIX_2(x1, x2)              (ADDR_FIX_1(x1) | ADDR_FIX_1(x2))
#define ADDR_FIX_3(x1, x2, x3)          (ADDR_FIX_1(x1) | ADDR_FIX_2(x2, x3))
#define ADDR_FIX_4(x1, x2, x3, x4)      (ADDR_FIX_1(x1) | ADDR_FIX_3(x2, x3, x4))
#define ADDR_FIX_5(x1, x2, x3, x4, x5)  (ADDR_FIX_1(x1) | ADDR_FIX_4(x2, x3, x4, x5))

struct cmd_info {
        const char *name;
        u32 opcode;

#define F_LEN_MASK      (1U<<0)
#define F_LEN_CONST  1U
#define F_LEN_VAR    0U

/*
 * command has its own ip advance logic
 * e.g. MI_BATCH_START, MI_BATCH_END
 */
#define F_IP_ADVANCE_CUSTOM (1<<1)

#define F_POST_HANDLE   (1<<2)
        u32 flag;

#define R_RCS   BIT(RCS0)
#define R_VCS1  BIT(VCS0)
#define R_VCS2  BIT(VCS1)
#define R_VCS   (R_VCS1 | R_VCS2)
#define R_BCS   BIT(BCS0)
#define R_VECS  BIT(VECS0)
#define R_ALL (R_RCS | R_VCS | R_BCS | R_VECS)
        /* rings that support this cmd: BLT/RCS/VCS/VECS */
        u16 rings;

        /* devices that support this cmd: SNB/IVB/HSW/... */
        u16 devices;

        /* which DWords are address that need fix up.
         * bit 0 means a 32-bit non address operand in command
         * bit 1 means address operand, which could be 32-bit
         * or 64-bit depending on different architectures.(
         * defined by "gmadr_bytes_in_cmd" in intel_gvt.
         * No matter the address length, each address only takes
         * one bit in the bitmap.
         */
        u16 addr_bitmap;

        /* flag == F_LEN_CONST : command length
         * flag == F_LEN_VAR : length bias bits
         * Note: length is in DWord
         */
        u8 len;

        parser_cmd_handler handler;
};

struct cmd_entry {
        struct hlist_node hlist;
        const struct cmd_info *info;
};

enum {
        RING_BUFFER_INSTRUCTION,
        BATCH_BUFFER_INSTRUCTION,
        BATCH_BUFFER_2ND_LEVEL,
};

enum {
        GTT_BUFFER,
        PPGTT_BUFFER
};

struct parser_exec_state {
        struct intel_vgpu *vgpu;
        int ring_id;

        int buf_type;

        /* batch buffer address type */
        int buf_addr_type;

        /* graphics memory address of ring buffer start */
        unsigned long ring_start;
        unsigned long ring_size;
        unsigned long ring_head;
        unsigned long ring_tail;

        /* instruction graphics memory address */
        unsigned long ip_gma;

        /* mapped va of the instr_gma */
        void *ip_va;
        void *rb_va;

        void *ret_bb_va;
        /* next instruction when return from  batch buffer to ring buffer */
        unsigned long ret_ip_gma_ring;

        /* next instruction when return from 2nd batch buffer to batch buffer */
        unsigned long ret_ip_gma_bb;

        /* batch buffer address type (GTT or PPGTT)
         * used when ret from 2nd level batch buffer
         */
        int saved_buf_addr_type;
        bool is_ctx_wa;

        const struct cmd_info *info;

        struct intel_vgpu_workload *workload;
};

#define gmadr_dw_number(s)      \
        (s->vgpu->gvt->device_info.gmadr_bytes_in_cmd >> 2)

static unsigned long bypass_scan_mask = 0;

/* ring ALL, type = 0 */
static const struct sub_op_bits sub_op_mi[] = {
        {31, 29},
        {28, 23},
};

static const struct decode_info decode_info_mi = {
        "MI",
        OP_LEN_MI,
        ARRAY_SIZE(sub_op_mi),
        sub_op_mi,
};

/* ring RCS, command type 2 */
static const struct sub_op_bits sub_op_2d[] = {
        {31, 29},
        {28, 22},
};

static const struct decode_info decode_info_2d = {
        "2D",
        OP_LEN_2D,
        ARRAY_SIZE(sub_op_2d),
        sub_op_2d,
};

/* ring RCS, command type 3 */
static const struct sub_op_bits sub_op_3d_media[] = {
        {31, 29},
        {28, 27},
        {26, 24},
        {23, 16},
};

static const struct decode_info decode_info_3d_media = {
        "3D_Media",
        OP_LEN_3D_MEDIA,
        ARRAY_SIZE(sub_op_3d_media),
        sub_op_3d_media,
};

/* ring VCS, command type 3 */
static const struct sub_op_bits sub_op_mfx_vc[] = {
        {31, 29},
        {28, 27},
        {26, 24},
        {23, 21},
        {20, 16},
};

static const struct decode_info decode_info_mfx_vc = {
        "MFX_VC",
        OP_LEN_MFX_VC,
        ARRAY_SIZE(sub_op_mfx_vc),
        sub_op_mfx_vc,
};

/* ring VECS, command type 3 */
static const struct sub_op_bits sub_op_vebox[] = {
        {31, 29},
        {28, 27},
        {26, 24},
        {23, 21},
        {20, 16},
};

static const struct decode_info decode_info_vebox = {
        "VEBOX",
        OP_LEN_VEBOX,
        ARRAY_SIZE(sub_op_vebox),
        sub_op_vebox,
};

static const struct decode_info *ring_decode_info[I915_NUM_ENGINES][8] = {
        [RCS0] = {
                &decode_info_mi,
                NULL,
                NULL,
                &decode_info_3d_media,
                NULL,
                NULL,
                NULL,
                NULL,
        },

        [VCS0] = {
                &decode_info_mi,
                NULL,
                NULL,
                &decode_info_mfx_vc,
                NULL,
                NULL,
                NULL,
                NULL,
        },

        [BCS0] = {
                &decode_info_mi,
                NULL,
                &decode_info_2d,
                NULL,
                NULL,
                NULL,
                NULL,
                NULL,
        },

        [VECS0] = {
                &decode_info_mi,
                NULL,
                NULL,
                &decode_info_vebox,
                NULL,
                NULL,
                NULL,
                NULL,
        },

        [VCS1] = {
                &decode_info_mi,
                NULL,
                NULL,
                &decode_info_mfx_vc,
                NULL,
                NULL,
                NULL,
                NULL,
        },
};

static inline u32 get_opcode(u32 cmd, int ring_id)
{
        const struct decode_info *d_info;

        d_info = ring_decode_info[ring_id][CMD_TYPE(cmd)];
        if (d_info == NULL)
                return INVALID_OP;

        return cmd >> (32 - d_info->op_len);
}

static inline const struct cmd_info *find_cmd_entry(struct intel_gvt *gvt,
                unsigned int opcode, int ring_id)
{
        struct cmd_entry *e;

        hash_for_each_possible(gvt->cmd_table, e, hlist, opcode) {
                if (opcode == e->info->opcode && e->info->rings & BIT(ring_id))
                        return e->info;
        }
        return NULL;
}

static inline const struct cmd_info *get_cmd_info(struct intel_gvt *gvt,
                u32 cmd, int ring_id)
{
        u32 opcode;

        opcode = get_opcode(cmd, ring_id);
        if (opcode == INVALID_OP)
                return NULL;

        return find_cmd_entry(gvt, opcode, ring_id);
}

static inline u32 sub_op_val(u32 cmd, u32 hi, u32 low)
{
        return (cmd >> low) & ((1U << (hi - low + 1)) - 1);
}

static inline void print_opcode(u32 cmd, int ring_id)
{
        const struct decode_info *d_info;
        int i;

        d_info = ring_decode_info[ring_id][CMD_TYPE(cmd)];
        if (d_info == NULL)
                return;

        gvt_dbg_cmd("opcode=0x%x %s sub_ops:",
                        cmd >> (32 - d_info->op_len), d_info->name);

        for (i = 0; i < d_info->nr_sub_op; i++)
                pr_err("0x%x ", sub_op_val(cmd, d_info->sub_op[i].hi,
                                        d_info->sub_op[i].low));

        pr_err("\n");
}

static inline u32 *cmd_ptr(struct parser_exec_state *s, int index)
{
        return s->ip_va + (index << 2);
}

static inline u32 cmd_val(struct parser_exec_state *s, int index)
{
        return *cmd_ptr(s, index);
}

static void parser_exec_state_dump(struct parser_exec_state *s)
{
        int cnt = 0;
        int i;

        gvt_dbg_cmd("  vgpu%d RING%d: ring_start(%08lx) ring_end(%08lx)"
                        " ring_head(%08lx) ring_tail(%08lx)\n", s->vgpu->id,
                        s->ring_id, s->ring_start, s->ring_start + s->ring_size,
                        s->ring_head, s->ring_tail);

        gvt_dbg_cmd("  %s %s ip_gma(%08lx) ",
                        s->buf_type == RING_BUFFER_INSTRUCTION ?
                        "RING_BUFFER" : "BATCH_BUFFER",
                        s->buf_addr_type == GTT_BUFFER ?
                        "GTT" : "PPGTT", s->ip_gma);

        if (s->ip_va == NULL) {
                gvt_dbg_cmd(" ip_va(NULL)");
                return;
        }

        gvt_dbg_cmd("  ip_va=%p: %08x %08x %08x %08x\n",
                        s->ip_va, cmd_val(s, 0), cmd_val(s, 1),
                        cmd_val(s, 2), cmd_val(s, 3));

        print_opcode(cmd_val(s, 0), s->ring_id);

        s->ip_va = (u32 *)((((u64)s->ip_va) >> 12) << 12);

        while (cnt < 1024) {
                gvt_dbg_cmd("ip_va=%p: ", s->ip_va);
                for (i = 0; i < 8; i++)
                        gvt_dbg_cmd("%08x ", cmd_val(s, i));
                gvt_dbg_cmd("\n");

                s->ip_va += 8 * sizeof(u32);
                cnt += 8;
        }
}

static inline void update_ip_va(struct parser_exec_state *s)
{
        unsigned long len = 0;

        if (WARN_ON(s->ring_head == s->ring_tail))
                return;

        if (s->buf_type == RING_BUFFER_INSTRUCTION) {
                unsigned long ring_top = s->ring_start + s->ring_size;

                if (s->ring_head > s->ring_tail) {
                        if (s->ip_gma >= s->ring_head && s->ip_gma < ring_top)
                                len = (s->ip_gma - s->ring_head);
                        else if (s->ip_gma >= s->ring_start &&
                                        s->ip_gma <= s->ring_tail)
                                len = (ring_top - s->ring_head) +
                                        (s->ip_gma - s->ring_start);
                } else
                        len = (s->ip_gma - s->ring_head);

                s->ip_va = s->rb_va + len;
        } else {/* shadow batch buffer */
                s->ip_va = s->ret_bb_va;
        }
}

static inline int ip_gma_set(struct parser_exec_state *s,
                unsigned long ip_gma)
{
        WARN_ON(!IS_ALIGNED(ip_gma, 4));

        s->ip_gma = ip_gma;
        update_ip_va(s);
        return 0;
}

static inline int ip_gma_advance(struct parser_exec_state *s,
                unsigned int dw_len)
{
        s->ip_gma += (dw_len << 2);

        if (s->buf_type == RING_BUFFER_INSTRUCTION) {
                if (s->ip_gma >= s->ring_start + s->ring_size)
                        s->ip_gma -= s->ring_size;
                update_ip_va(s);
        } else {
                s->ip_va += (dw_len << 2);
        }

        return 0;
}

static inline int get_cmd_length(const struct cmd_info *info, u32 cmd)
{
        if ((info->flag & F_LEN_MASK) == F_LEN_CONST)
                return info->len;
        else
                return (cmd & ((1U << info->len) - 1)) + 2;
        return 0;
}

static inline int cmd_length(struct parser_exec_state *s)
{
        return get_cmd_length(s->info, cmd_val(s, 0));
}

/* do not remove this, some platform may need clflush here */
#define patch_value(s, addr, val) do { \
        *addr = val; \
} while (0)

static bool is_shadowed_mmio(unsigned int offset)
{
        bool ret = false;

        if ((offset == 0x2168) || /*BB current head register UDW */
            (offset == 0x2140) || /*BB current header register */
            (offset == 0x211c) || /*second BB header register UDW */
            (offset == 0x2114)) { /*second BB header register UDW */
                ret = true;
        }
        return ret;
}

static inline bool is_force_nonpriv_mmio(unsigned int offset)
{
        return (offset >= 0x24d0 && offset < 0x2500);
}

static int force_nonpriv_reg_handler(struct parser_exec_state *s,
                unsigned int offset, unsigned int index, char *cmd)
{
        struct intel_gvt *gvt = s->vgpu->gvt;
        unsigned int data;
        u32 ring_base;
        u32 nopid;
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;

        if (!strcmp(cmd, "lri"))
                data = cmd_val(s, index + 1);
        else {
                gvt_err("Unexpected forcenonpriv 0x%x write from cmd %s\n",
                        offset, cmd);
                return -EINVAL;
        }

        ring_base = dev_priv->engine[s->ring_id]->mmio_base;
        nopid = i915_mmio_reg_offset(RING_NOPID(ring_base));

        if (!intel_gvt_in_force_nonpriv_whitelist(gvt, data) &&
                        data != nopid) {
                gvt_err("Unexpected forcenonpriv 0x%x LRI write, value=0x%x\n",
                        offset, data);
                patch_value(s, cmd_ptr(s, index), nopid);
                return 0;
        }
        return 0;
}

static inline bool is_mocs_mmio(unsigned int offset)
{
        return ((offset >= 0xc800) && (offset <= 0xcff8)) ||
                ((offset >= 0xb020) && (offset <= 0xb0a0));
}

static int mocs_cmd_reg_handler(struct parser_exec_state *s,
                                unsigned int offset, unsigned int index)
{
        if (!is_mocs_mmio(offset))
                return -EINVAL;
        vgpu_vreg(s->vgpu, offset) = cmd_val(s, index + 1);
        return 0;
}

static int cmd_reg_handler(struct parser_exec_state *s,
        unsigned int offset, unsigned int index, char *cmd)
{
        struct intel_vgpu *vgpu = s->vgpu;
        struct intel_gvt *gvt = vgpu->gvt;
        u32 ctx_sr_ctl;

        if (offset + 4 > gvt->device_info.mmio_size) {
                gvt_vgpu_err("%s access to (%x) outside of MMIO range\n",
                                cmd, offset);
                return -EFAULT;
        }

        if (!intel_gvt_mmio_is_cmd_access(gvt, offset)) {
                gvt_vgpu_err("%s access to non-render register (%x)\n",
                                cmd, offset);
                return -EBADRQC;
        }

        if (is_shadowed_mmio(offset)) {
                gvt_vgpu_err("found access of shadowed MMIO %x\n", offset);
                return 0;
        }

        if (is_mocs_mmio(offset) &&
            mocs_cmd_reg_handler(s, offset, index))
                return -EINVAL;

        if (is_force_nonpriv_mmio(offset) &&
                force_nonpriv_reg_handler(s, offset, index, cmd))
                return -EPERM;

        if (offset == i915_mmio_reg_offset(DERRMR) ||
                offset == i915_mmio_reg_offset(FORCEWAKE_MT)) {
                /* Writing to HW VGT_PVINFO_PAGE offset will be discarded */
                patch_value(s, cmd_ptr(s, index), VGT_PVINFO_PAGE);
        }

        /* TODO
         * In order to let workload with inhibit context to generate
         * correct image data into memory, vregs values will be loaded to
         * hw via LRIs in the workload with inhibit context. But as
         * indirect context is loaded prior to LRIs in workload, we don't
         * want reg values specified in indirect context overwritten by
         * LRIs in workloads. So, when scanning an indirect context, we
         * update reg values in it into vregs, so LRIs in workload with
         * inhibit context will restore with correct values
         */
        if (IS_GEN(gvt->dev_priv, 9) &&
                        intel_gvt_mmio_is_in_ctx(gvt, offset) &&
                        !strncmp(cmd, "lri", 3)) {
                intel_gvt_hypervisor_read_gpa(s->vgpu,
                        s->workload->ring_context_gpa + 12, &ctx_sr_ctl, 4);
                /* check inhibit context */
                if (ctx_sr_ctl & 1) {
                        u32 data = cmd_val(s, index + 1);

                        if (intel_gvt_mmio_has_mode_mask(s->vgpu->gvt, offset))
                                intel_vgpu_mask_mmio_write(vgpu,
                                                        offset, &data, 4);
                        else
                                vgpu_vreg(vgpu, offset) = data;
                }
        }

        /* TODO: Update the global mask if this MMIO is a masked-MMIO */
        intel_gvt_mmio_set_cmd_accessed(gvt, offset);
        return 0;
}

#define cmd_reg(s, i) \
        (cmd_val(s, i) & GENMASK(22, 2))

#define cmd_reg_inhibit(s, i) \
        (cmd_val(s, i) & GENMASK(22, 18))

#define cmd_gma(s, i) \
        (cmd_val(s, i) & GENMASK(31, 2))

#define cmd_gma_hi(s, i) \
        (cmd_val(s, i) & GENMASK(15, 0))

static int cmd_handler_lri(struct parser_exec_state *s)
{
        int i, ret = 0;
        int cmd_len = cmd_length(s);
        struct intel_gvt *gvt = s->vgpu->gvt;

        for (i = 1; i < cmd_len; i += 2) {
                if (IS_BROADWELL(gvt->dev_priv) && s->ring_id != RCS0) {
                        if (s->ring_id == BCS0 &&
                            cmd_reg(s, i) == i915_mmio_reg_offset(DERRMR))
                                ret |= 0;
                        else
                                ret |= cmd_reg_inhibit(s, i) ? -EBADRQC : 0;
                }
                if (ret)
                        break;
                ret |= cmd_reg_handler(s, cmd_reg(s, i), i, "lri");
                if (ret)
                        break;
        }
        return ret;
}

static int cmd_handler_lrr(struct parser_exec_state *s)
{
        int i, ret = 0;
        int cmd_len = cmd_length(s);

        for (i = 1; i < cmd_len; i += 2) {
                if (IS_BROADWELL(s->vgpu->gvt->dev_priv))
                        ret |= ((cmd_reg_inhibit(s, i) ||
                                        (cmd_reg_inhibit(s, i + 1)))) ?
                                -EBADRQC : 0;
                if (ret)
                        break;
                ret |= cmd_reg_handler(s, cmd_reg(s, i), i, "lrr-src");
                if (ret)
                        break;
                ret |= cmd_reg_handler(s, cmd_reg(s, i + 1), i, "lrr-dst");
                if (ret)
                        break;
        }
        return ret;
}

static inline int cmd_address_audit(struct parser_exec_state *s,
                unsigned long guest_gma, int op_size, bool index_mode);

static int cmd_handler_lrm(struct parser_exec_state *s)
{
        struct intel_gvt *gvt = s->vgpu->gvt;
        int gmadr_bytes = gvt->device_info.gmadr_bytes_in_cmd;
        unsigned long gma;
        int i, ret = 0;
        int cmd_len = cmd_length(s);

        for (i = 1; i < cmd_len;) {
                if (IS_BROADWELL(gvt->dev_priv))
                        ret |= (cmd_reg_inhibit(s, i)) ? -EBADRQC : 0;

                if (ret)
                        break;
                ret |= cmd_reg_handler(s, cmd_reg(s, i), i, "lrm");
                if (ret)
                        break;
                if (cmd_val(s, 0) & (1 << 22)) {
                        gma = cmd_gma(s, i + 1);
                        if (gmadr_bytes == 8)
                                gma |= (cmd_gma_hi(s, i + 2)) << 32;
                        ret |= cmd_address_audit(s, gma, sizeof(u32), false);
                        if (ret)
                                break;
                }
                i += gmadr_dw_number(s) + 1;
        }
        return ret;
}

static int cmd_handler_srm(struct parser_exec_state *s)
{
        int gmadr_bytes = s->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
        unsigned long gma;
        int i, ret = 0;
        int cmd_len = cmd_length(s);

        for (i = 1; i < cmd_len;) {
                ret |= cmd_reg_handler(s, cmd_reg(s, i), i, "srm");
                if (ret)
                        break;
                if (cmd_val(s, 0) & (1 << 22)) {
                        gma = cmd_gma(s, i + 1);
                        if (gmadr_bytes == 8)
                                gma |= (cmd_gma_hi(s, i + 2)) << 32;
                        ret |= cmd_address_audit(s, gma, sizeof(u32), false);
                        if (ret)
                                break;
                }
                i += gmadr_dw_number(s) + 1;
        }
        return ret;
}

struct cmd_interrupt_event {
        int pipe_control_notify;
        int mi_flush_dw;
        int mi_user_interrupt;
};

static struct cmd_interrupt_event cmd_interrupt_events[] = {
        [RCS0] = {
                .pipe_control_notify = RCS_PIPE_CONTROL,
                .mi_flush_dw = INTEL_GVT_EVENT_RESERVED,
                .mi_user_interrupt = RCS_MI_USER_INTERRUPT,
        },
        [BCS0] = {
                .pipe_control_notify = INTEL_GVT_EVENT_RESERVED,
                .mi_flush_dw = BCS_MI_FLUSH_DW,
                .mi_user_interrupt = BCS_MI_USER_INTERRUPT,
        },
        [VCS0] = {
                .pipe_control_notify = INTEL_GVT_EVENT_RESERVED,
                .mi_flush_dw = VCS_MI_FLUSH_DW,
                .mi_user_interrupt = VCS_MI_USER_INTERRUPT,
        },
        [VCS1] = {
                .pipe_control_notify = INTEL_GVT_EVENT_RESERVED,
                .mi_flush_dw = VCS2_MI_FLUSH_DW,
                .mi_user_interrupt = VCS2_MI_USER_INTERRUPT,
        },
        [VECS0] = {
                .pipe_control_notify = INTEL_GVT_EVENT_RESERVED,
                .mi_flush_dw = VECS_MI_FLUSH_DW,
                .mi_user_interrupt = VECS_MI_USER_INTERRUPT,
        },
};

static int cmd_handler_pipe_control(struct parser_exec_state *s)
{
        int gmadr_bytes = s->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
        unsigned long gma;
        bool index_mode = false;
        unsigned int post_sync;
        int ret = 0;
        u32 hws_pga, val;

        post_sync = (cmd_val(s, 1) & PIPE_CONTROL_POST_SYNC_OP_MASK) >> 14;

        /* LRI post sync */
        if (cmd_val(s, 1) & PIPE_CONTROL_MMIO_WRITE)
                ret = cmd_reg_handler(s, cmd_reg(s, 2), 1, "pipe_ctrl");
        /* post sync */
        else if (post_sync) {
                if (post_sync == 2)
                        ret = cmd_reg_handler(s, 0x2350, 1, "pipe_ctrl");
                else if (post_sync == 3)
                        ret = cmd_reg_handler(s, 0x2358, 1, "pipe_ctrl");
                else if (post_sync == 1) {
                        /* check ggtt*/
                        if ((cmd_val(s, 1) & PIPE_CONTROL_GLOBAL_GTT_IVB)) {
                                gma = cmd_val(s, 2) & GENMASK(31, 3);
                                if (gmadr_bytes == 8)
                                        gma |= (cmd_gma_hi(s, 3)) << 32;
                                /* Store Data Index */
                                if (cmd_val(s, 1) & (1 << 21))
                                        index_mode = true;
                                ret |= cmd_address_audit(s, gma, sizeof(u64),
                                                index_mode);
                                if (ret)
                                        return ret;
                                if (index_mode) {
                                        hws_pga = s->vgpu->hws_pga[s->ring_id];
                                        gma = hws_pga + gma;
                                        patch_value(s, cmd_ptr(s, 2), gma);
                                        val = cmd_val(s, 1) & (~(1 << 21));
                                        patch_value(s, cmd_ptr(s, 1), val);
                                }
                        }
                }
        }

        if (ret)
                return ret;

        if (cmd_val(s, 1) & PIPE_CONTROL_NOTIFY)
                set_bit(cmd_interrupt_events[s->ring_id].pipe_control_notify,
                                s->workload->pending_events);
        return 0;
}

static int cmd_handler_mi_user_interrupt(struct parser_exec_state *s)
{
        set_bit(cmd_interrupt_events[s->ring_id].mi_user_interrupt,
                        s->workload->pending_events);
        patch_value(s, cmd_ptr(s, 0), MI_NOOP);
        return 0;
}

static int cmd_advance_default(struct parser_exec_state *s)
{
        return ip_gma_advance(s, cmd_length(s));
}

static int cmd_handler_mi_batch_buffer_end(struct parser_exec_state *s)
{
        int ret;

        if (s->buf_type == BATCH_BUFFER_2ND_LEVEL) {
                s->buf_type = BATCH_BUFFER_INSTRUCTION;
                ret = ip_gma_set(s, s->ret_ip_gma_bb);
                s->buf_addr_type = s->saved_buf_addr_type;
        } else {
                s->buf_type = RING_BUFFER_INSTRUCTION;
                s->buf_addr_type = GTT_BUFFER;
                if (s->ret_ip_gma_ring >= s->ring_start + s->ring_size)
                        s->ret_ip_gma_ring -= s->ring_size;
                ret = ip_gma_set(s, s->ret_ip_gma_ring);
        }
        return ret;
}

struct mi_display_flip_command_info {
        int pipe;
        int plane;
        int event;
        i915_reg_t stride_reg;
        i915_reg_t ctrl_reg;
        i915_reg_t surf_reg;
        u64 stride_val;
        u64 tile_val;
        u64 surf_val;
        bool async_flip;
};

struct plane_code_mapping {
        int pipe;
        int plane;
        int event;
};

static int gen8_decode_mi_display_flip(struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
        struct plane_code_mapping gen8_plane_code[] = {
                [0] = {PIPE_A, PLANE_A, PRIMARY_A_FLIP_DONE},
                [1] = {PIPE_B, PLANE_A, PRIMARY_B_FLIP_DONE},
                [2] = {PIPE_A, PLANE_B, SPRITE_A_FLIP_DONE},
                [3] = {PIPE_B, PLANE_B, SPRITE_B_FLIP_DONE},
                [4] = {PIPE_C, PLANE_A, PRIMARY_C_FLIP_DONE},
                [5] = {PIPE_C, PLANE_B, SPRITE_C_FLIP_DONE},
        };
        u32 dword0, dword1, dword2;
        u32 v;

        dword0 = cmd_val(s, 0);
        dword1 = cmd_val(s, 1);
        dword2 = cmd_val(s, 2);

        v = (dword0 & GENMASK(21, 19)) >> 19;
        if (WARN_ON(v >= ARRAY_SIZE(gen8_plane_code)))
                return -EBADRQC;

        info->pipe = gen8_plane_code[v].pipe;
        info->plane = gen8_plane_code[v].plane;
        info->event = gen8_plane_code[v].event;
        info->stride_val = (dword1 & GENMASK(15, 6)) >> 6;
        info->tile_val = (dword1 & 0x1);
        info->surf_val = (dword2 & GENMASK(31, 12)) >> 12;
        info->async_flip = ((dword2 & GENMASK(1, 0)) == 0x1);

        if (info->plane == PLANE_A) {
                info->ctrl_reg = DSPCNTR(info->pipe);
                info->stride_reg = DSPSTRIDE(info->pipe);
                info->surf_reg = DSPSURF(info->pipe);
        } else if (info->plane == PLANE_B) {
                info->ctrl_reg = SPRCTL(info->pipe);
                info->stride_reg = SPRSTRIDE(info->pipe);
                info->surf_reg = SPRSURF(info->pipe);
        } else {
                WARN_ON(1);
                return -EBADRQC;
        }
        return 0;
}

static int skl_decode_mi_display_flip(struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
        struct intel_vgpu *vgpu = s->vgpu;
        u32 dword0 = cmd_val(s, 0);
        u32 dword1 = cmd_val(s, 1);
        u32 dword2 = cmd_val(s, 2);
        u32 plane = (dword0 & GENMASK(12, 8)) >> 8;

        info->plane = PRIMARY_PLANE;

        switch (plane) {
        case MI_DISPLAY_FLIP_SKL_PLANE_1_A:
                info->pipe = PIPE_A;
                info->event = PRIMARY_A_FLIP_DONE;
                break;
        case MI_DISPLAY_FLIP_SKL_PLANE_1_B:
                info->pipe = PIPE_B;
                info->event = PRIMARY_B_FLIP_DONE;
                break;
        case MI_DISPLAY_FLIP_SKL_PLANE_1_C:
                info->pipe = PIPE_C;
                info->event = PRIMARY_C_FLIP_DONE;
                break;

        case MI_DISPLAY_FLIP_SKL_PLANE_2_A:
                info->pipe = PIPE_A;
                info->event = SPRITE_A_FLIP_DONE;
                info->plane = SPRITE_PLANE;
                break;
        case MI_DISPLAY_FLIP_SKL_PLANE_2_B:
                info->pipe = PIPE_B;
                info->event = SPRITE_B_FLIP_DONE;
                info->plane = SPRITE_PLANE;
                break;
        case MI_DISPLAY_FLIP_SKL_PLANE_2_C:
                info->pipe = PIPE_C;
                info->event = SPRITE_C_FLIP_DONE;
                info->plane = SPRITE_PLANE;
                break;

        default:
                gvt_vgpu_err("unknown plane code %d\n", plane);
                return -EBADRQC;
        }

        info->stride_val = (dword1 & GENMASK(15, 6)) >> 6;
        info->tile_val = (dword1 & GENMASK(2, 0));
        info->surf_val = (dword2 & GENMASK(31, 12)) >> 12;
        info->async_flip = ((dword2 & GENMASK(1, 0)) == 0x1);

        info->ctrl_reg = DSPCNTR(info->pipe);
        info->stride_reg = DSPSTRIDE(info->pipe);
        info->surf_reg = DSPSURF(info->pipe);

        return 0;
}

static int gen8_check_mi_display_flip(struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
        u32 stride, tile;

        if (!info->async_flip)
                return 0;

        if (INTEL_GEN(dev_priv) >= 9) {
                stride = vgpu_vreg_t(s->vgpu, info->stride_reg) & GENMASK(9, 0);
                tile = (vgpu_vreg_t(s->vgpu, info->ctrl_reg) &
                                GENMASK(12, 10)) >> 10;
        } else {
                stride = (vgpu_vreg_t(s->vgpu, info->stride_reg) &
                                GENMASK(15, 6)) >> 6;
                tile = (vgpu_vreg_t(s->vgpu, info->ctrl_reg) & (1 << 10)) >> 10;
        }

        if (stride != info->stride_val)
                gvt_dbg_cmd("cannot change stride during async flip\n");

        if (tile != info->tile_val)
                gvt_dbg_cmd("cannot change tile during async flip\n");

        return 0;
}

static int gen8_update_plane_mmio_from_mi_display_flip(
                struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;
        struct intel_vgpu *vgpu = s->vgpu;

        set_mask_bits(&vgpu_vreg_t(vgpu, info->surf_reg), GENMASK(31, 12),
                      info->surf_val << 12);
        if (INTEL_GEN(dev_priv) >= 9) {
                set_mask_bits(&vgpu_vreg_t(vgpu, info->stride_reg), GENMASK(9, 0),
                              info->stride_val);
                set_mask_bits(&vgpu_vreg_t(vgpu, info->ctrl_reg), GENMASK(12, 10),
                              info->tile_val << 10);
        } else {
                set_mask_bits(&vgpu_vreg_t(vgpu, info->stride_reg), GENMASK(15, 6),
                              info->stride_val << 6);
                set_mask_bits(&vgpu_vreg_t(vgpu, info->ctrl_reg), GENMASK(10, 10),
                              info->tile_val << 10);
        }

        if (info->plane == PLANE_PRIMARY)
                vgpu_vreg_t(vgpu, PIPE_FLIPCOUNT_G4X(info->pipe))++;

        if (info->async_flip)
                intel_vgpu_trigger_virtual_event(vgpu, info->event);
        else
                set_bit(info->event, vgpu->irq.flip_done_event[info->pipe]);

        return 0;
}

static int decode_mi_display_flip(struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        struct drm_i915_private *dev_priv = s->vgpu->gvt->dev_priv;

        if (IS_BROADWELL(dev_priv))
                return gen8_decode_mi_display_flip(s, info);
        if (INTEL_GEN(dev_priv) >= 9)
                return skl_decode_mi_display_flip(s, info);

        return -ENODEV;
}

static int check_mi_display_flip(struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        return gen8_check_mi_display_flip(s, info);
}

static int update_plane_mmio_from_mi_display_flip(
                struct parser_exec_state *s,
                struct mi_display_flip_command_info *info)
{
        return gen8_update_plane_mmio_from_mi_display_flip(s, info);
}

static int cmd_handler_mi_display_flip(struct parser_exec_state *s)
{
        struct mi_display_flip_command_info info;
        struct intel_vgpu *vgpu = s->vgpu;
        int ret;
        int i;
        int len = cmd_length(s);

        ret = decode_mi_display_flip(s, &info);
        if (ret) {
                gvt_vgpu_err("fail to decode MI display flip command\n");
                return ret;
        }

        ret = check_mi_display_flip(s, &info);
        if (ret) {
                gvt_vgpu_err("invalid MI display flip command\n");
                return ret;
        }

        ret = update_plane_mmio_from_mi_display_flip(s, &info);
        if (ret) {
                gvt_vgpu_err("fail to update plane mmio\n");
                return ret;
        }

        for (i = 0; i < len; i++)
                patch_value(s, cmd_ptr(s, i), MI_NOOP);
        return 0;
}

static bool is_wait_for_flip_pending(u32 cmd)
{
        return cmd & (MI_WAIT_FOR_PLANE_A_FLIP_PENDING |
                        MI_WAIT_FOR_PLANE_B_FLIP_PENDING |
                        MI_WAIT_FOR_PLANE_C_FLIP_PENDING |
                        MI_WAIT_FOR_SPRITE_A_FLIP_PENDING |
                        MI_WAIT_FOR_SPRITE_B_FLIP_PENDING |
                        MI_WAIT_FOR_SPRITE_C_FLIP_PENDING);
}

static int cmd_handler_mi_wait_for_event(struct parser_exec_state *s)
{
        u32 cmd = cmd_val(s, 0);

        if (!is_wait_for_flip_pending(cmd))
                return 0;

        patch_value(s, cmd_ptr(s, 0), MI_NOOP);
        return 0;
}

static unsigned long get_gma_bb_from_cmd(struct parser_exec_state *s, int index)
{
        unsigned long addr;
        unsigned long gma_high, gma_low;
        struct intel_vgpu *vgpu = s->vgpu;
        int gmadr_bytes = vgpu->gvt->device_info.gmadr_bytes_in_cmd;

        if (WARN_ON(gmadr_bytes != 4 && gmadr_bytes != 8)) {
                gvt_vgpu_err("invalid gma bytes %d\n", gmadr_bytes);
                return INTEL_GVT_INVALID_ADDR;
        }

        gma_low = cmd_val(s, index) & BATCH_BUFFER_ADDR_MASK;
        if (gmadr_bytes == 4) {
                addr = gma_low;
        } else {
                gma_high = cmd_val(s, index + 1) & BATCH_BUFFER_ADDR_HIGH_MASK;
                addr = (((unsigned long)gma_high) << 32) | gma_low;
        }
        return addr;
}

static inline int cmd_address_audit(struct parser_exec_state *s,
                unsigned long guest_gma, int op_size, bool index_mode)
{
        struct intel_vgpu *vgpu = s->vgpu;
        u32 max_surface_size = vgpu->gvt->device_info.max_surface_size;
        int i;
        int ret;

        if (op_size > max_surface_size) {
                gvt_vgpu_err("command address audit fail name %s\n",
                        s->info->name);
                return -EFAULT;
        }

        if (index_mode) {
                if (guest_gma >= I915_GTT_PAGE_SIZE) {
                        ret = -EFAULT;
                        goto err;
                }
        } else if (!intel_gvt_ggtt_validate_range(vgpu, guest_gma, op_size)) {
                ret = -EFAULT;
                goto err;
        }

        return 0;

err:
        gvt_vgpu_err("cmd_parser: Malicious %s detected, addr=0x%lx, len=%d!\n",
                        s->info->name, guest_gma, op_size);

        pr_err("cmd dump: ");
        for (i = 0; i < cmd_length(s); i++) {
                if (!(i % 4))
                        pr_err("\n%08x ", cmd_val(s, i));
                else
                        pr_err("%08x ", cmd_val(s, i));
        }
        pr_err("\nvgpu%d: aperture 0x%llx - 0x%llx, hidden 0x%llx - 0x%llx\n",
                        vgpu->id,
                        vgpu_aperture_gmadr_base(vgpu),
                        vgpu_aperture_gmadr_end(vgpu),
                        vgpu_hidden_gmadr_base(vgpu),
                        vgpu_hidden_gmadr_end(vgpu));
        return ret;
}

static int cmd_handler_mi_store_data_imm(struct parser_exec_state *s)
{
        int gmadr_bytes = s->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
        int op_size = (cmd_length(s) - 3) * sizeof(u32);
        int core_id = (cmd_val(s, 2) & (1 << 0)) ? 1 : 0;
        unsigned long gma, gma_low, gma_high;
        int ret = 0;

        /* check ppggt */
        if (!(cmd_val(s, 0) & (1 << 22)))
                return 0;

        gma = cmd_val(s, 2) & GENMASK(31, 2);

        if (gmadr_bytes == 8) {
                gma_low = cmd_val(s, 1) & GENMASK(31, 2);
                gma_high = cmd_val(s, 2) & GENMASK(15, 0);
                gma = (gma_high << 32) | gma_low;
                core_id = (cmd_val(s, 1) & (1 << 0)) ? 1 : 0;
        }
        ret = cmd_address_audit(s, gma + op_size * core_id, op_size, false);
        return ret;
}

static inline int unexpected_cmd(struct parser_exec_state *s)
{
        struct intel_vgpu *vgpu = s->vgpu;

        gvt_vgpu_err("Unexpected %s in command buffer!\n", s->info->name);

        return -EBADRQC;
}

static int cmd_handler_mi_semaphore_wait(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_report_perf_count(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_op_2e(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_op_2f(struct parser_exec_state *s)
{
        int gmadr_bytes = s->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
        int op_size = (1 << ((cmd_val(s, 0) & GENMASK(20, 19)) >> 19)) *
                        sizeof(u32);
        unsigned long gma, gma_high;
        int ret = 0;

        if (!(cmd_val(s, 0) & (1 << 22)))
                return ret;

        gma = cmd_val(s, 1) & GENMASK(31, 2);
        if (gmadr_bytes == 8) {
                gma_high = cmd_val(s, 2) & GENMASK(15, 0);
                gma = (gma_high << 32) | gma;
        }
        ret = cmd_address_audit(s, gma, op_size, false);
        return ret;
}

static int cmd_handler_mi_store_data_index(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_clflush(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_conditional_batch_buffer_end(
                struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_update_gtt(struct parser_exec_state *s)
{
        return unexpected_cmd(s);
}

static int cmd_handler_mi_flush_dw(struct parser_exec_state *s)
{
        int gmadr_bytes = s->vgpu->gvt->device_info.gmadr_bytes_in_cmd;
        unsigned long gma;
        bool index_mode = false;
        int ret = 0;
        u32 hws_pga, val;

        /* Check post-sync and ppgtt bit */
        if (((cmd_val(s, 0) >> 14) & 0x3) && (cmd_val(s, 1) & (1 << 2))) {
                gma = cmd_val(s, 1) & GENMASK(31, 3);
                if (gmadr_bytes == 8)
                        gma |= (cmd_val(s, 2) & GENMASK(15, 0)) << 32;
                /* Store Data Index */
                if (cmd_val(s, 0) & (1 << 21))
                        index_mode = true;
                ret = cmd_address_audit(s, gma, sizeof(u64), index_mode);
                if (ret)
                        return ret;
                if (index_mode) {
                        hws_pga = s->vgpu->hws_pga[s->ring_id];
                        gma = hws_pga + gma;
                        patch_value(s, cmd_ptr(s, 1), gma);
                        val = cmd_val(s, 0) & (~(1 << 21));
                        patch_value(s, cmd_ptr(s, 0), val);
                }
        }
        /* Check notify bit */
        if ((cmd_val(s, 0) & (1 << 8)))
                set_bit(cmd_interrupt_events[s->ring_id].mi_flush_dw,
                                s->workload->pending_events);
        return ret;
}

static void addr_type_update_snb(struct parser_exec_state *s)
{
        if ((s->buf_type == RING_BUFFER_INSTRUCTION) &&
                        (BATCH_BUFFER_ADR_SPACE_BIT(cmd_val(s, 0)) == 1)) {
                s->buf_addr_type = PPGTT_BUFFER;
        }
}


static int copy_gma_to_hva(struct intel_vgpu *vgpu, struct intel_vgpu_mm *mm,
                unsigned long gma, unsigned long end_gma, void *va)
{
        unsigned long copy_len, offset;
        unsigned long len = 0;
        unsigned long gpa;

        while (gma != end_gma) {
                gpa = intel_vgpu_gma_to_gpa(mm, gma);
                if (gpa == INTEL_GVT_INVALID_ADDR) {
                        gvt_vgpu_err("invalid gma address: %lx\n", gma);
                        return -EFAULT;
                }

                offset = gma & (I915_GTT_PAGE_SIZE - 1);

                copy_len = (end_gma - gma) >= (I915_GTT_PAGE_SIZE - offset) ?
                        I915_GTT_PAGE_SIZE - offset : end_gma - gma;

                intel_gvt_hypervisor_read_gpa(vgpu, gpa, va + len, copy_len);

                len += copy_len;
                gma += copy_len;
        }
        return len;
}


/*
 * Check whether a batch buffer needs to be scanned. Currently
 * the only criteria is based on privilege.
 */
static int batch_buffer_needs_scan(struct parser_exec_state *s)
{
        /* Decide privilege based on address space */
        if (cmd_val(s, 0) & (1 << 8) &&
                        !(s->vgpu->scan_nonprivbb & (1 << s->ring_id)))
                return 0;
        return 1;
}

static int find_bb_size(struct parser_exec_state *s, unsigned long *bb_size)
{
        unsigned long gma = 0;
        const struct cmd_info *info;
        u32 cmd_len = 0;
        bool bb_end = false;
        struct intel_vgpu *vgpu = s->vgpu;
        u32 cmd;
        struct intel_vgpu_mm *mm = (s->buf_addr_type == GTT_BUFFER) ?
                s->vgpu->gtt.ggtt_mm : s->workload->shadow_mm;

        *bb_size = 0;

        /* get the start gm address of the batch buffer */
        gma = get_gma_bb_from_cmd(s, 1);
        if (gma == INTEL_GVT_INVALID_ADDR)
                return -EFAULT;

        cmd = cmd_val(s, 0);
        info = get_cmd_info(s->vgpu->gvt, cmd, s->ring_id);
        if (info == NULL) {
                gvt_vgpu_err("unknown cmd 0x%x, opcode=0x%x, addr_type=%s, ring %d, workload=%p\n",
                                cmd, get_opcode(cmd, s->ring_id),
                                (s->buf_addr_type == PPGTT_BUFFER) ?
                                "ppgtt" : "ggtt", s->ring_id, s->workload);
                return -EBADRQC;
        }
        do {
                if (copy_gma_to_hva(s->vgpu, mm,
                                gma, gma + 4, &cmd) < 0)
                        return -EFAULT;
                info = get_cmd_info(s->vgpu->gvt, cmd, s->ring_id);
                if (info == NULL) {
                        gvt_vgpu_err("unknown cmd 0x%x, opcode=0x%x, addr_type=%s, ring %d, workload=%p\n",
                                cmd, get_opcode(cmd, s->ring_id),
                                (s->buf_addr_type == PPGTT_BUFFER) ?
                                "ppgtt" : "ggtt", s->ring_id, s->workload);
                        return -EBADRQC;
                }

                if (info->opcode == OP_MI_BATCH_BUFFER_END) {
                        bb_end = true;
                } else if (info->opcode == OP_MI_BATCH_BUFFER_START) {
                        if (BATCH_BUFFER_2ND_LEVEL_BIT(cmd) == 0)
                                /* chained batch buffer */
                                bb_end = true;
                }
                cmd_len = get_cmd_length(info, cmd) << 2;
                *bb_size += cmd_len;
                gma += cmd_len;
        } while (!bb_end);

        return 0;
}

static int perform_bb_shadow(struct parser_exec_state *s)
{
        struct intel_vgpu *vgpu = s->vgpu;
        struct intel_vgpu_shadow_bb *bb;
        unsigned long gma = 0;
        unsigned long bb_size;
        int ret = 0;
        struct intel_vgpu_mm *mm = (s->buf_addr_type == GTT_BUFFER) ?
                s->vgpu->gtt.ggtt_mm : s->workload->shadow_mm;
        unsigned long start_offset = 0;

        /* get the start gm address of the batch buffer */
        gma = get_gma_bb_from_cmd(s, 1);
        if (gma == INTEL_GVT_INVALID_ADDR)
                return -EFAULT;

        ret = find_bb_size(s, &bb_size);
        if (ret)
                return ret;

        bb = kzalloc(sizeof(*bb), GFP_KERNEL);
        if (!bb)
                return -ENOMEM;

        bb->ppgtt = (s->buf_addr_type == GTT_BUFFER) ? false : true;

        /* the start_offset stores the batch buffer's start gma's
         * offset relative to page boundary. so for non-privileged batch
         * buffer, the shadowed gem object holds exactly the same page
         * layout as original gem object. This is for the convience of
         * replacing the whole non-privilged batch buffer page to this
         * shadowed one in PPGTT at the same gma address. (this replacing
         * action is not implemented yet now, but may be necessary in
         * future).
         * for prileged batch buffer, we just change start gma address to
         * that of shadowed page.
         */
        if (bb->ppgtt)
                start_offset = gma & ~I915_GTT_PAGE_MASK;

        bb->obj = i915_gem_object_create_shmem(s->vgpu->gvt->dev_priv,
                                               round_up(bb_size + start_offset,
                                                        PAGE_SIZE));
        if (IS_ERR(bb->obj)) {
                ret = PTR_ERR(bb->obj);
                goto err_free_bb;
        }

        ret = i915_gem_object_prepare_write(bb->obj, &bb->clflush);
        if (ret)
                goto err_free_obj;

        bb->va = i915_gem_object_pin_map(bb->obj, I915_MAP_WB);
        if (IS_ERR(bb->va)) {
                ret = PTR_ERR(bb->va);
                goto err_finish_shmem_access;
        }

        if (bb->clflush & CLFLUSH_BEFORE) {
                drm_clflush_virt_range(bb->va, bb->obj->base.size);
                bb->clflush &= ~CLFLUSH_BEFORE;
        }

        ret = copy_gma_to_hva(s->vgpu, mm,
                              gma, gma + bb_size,
                              bb->va + start_offset);
        if (ret < 0) {
                gvt_vgpu_err("fail to copy guest ring buffer\n");
                ret = -EFAULT;
                goto err_unmap;
        }

        INIT_LIST_HEAD(&bb->list);
        list_add(&bb->list, &s->workload->shadow_bb);

        bb->accessing = true;
        bb->bb_start_cmd_va = s->ip_va;

        if ((s->buf_type == BATCH_BUFFER_INSTRUCTION) && (!s->is_ctx_wa))
                bb->bb_offset = s->ip_va - s->rb_va;
        else
                bb->bb_offset = 0;

        /*
         * ip_va saves the virtual address of the shadow batch buffer, while
         * ip_gma saves the graphics address of the original batch buffer.
         * As the shadow batch buffer is just a copy from the originial one,
         * it should be right to use shadow batch buffer'va and original batch
         * buffer's gma in pair. After all, we don't want to pin the shadow
         * buffer here (too early).
         */
        s->ip_va = bb->va + start_offset;
        s->ip_gma = gma;
        return 0;
err_unmap:
        i915_gem_object_unpin_map(bb->obj);
err_finish_shmem_access:
        i915_gem_object_finish_access(bb->obj);
err_free_obj:
        i915_gem_object_put(bb->obj);
err_free_bb:
        kfree(bb);
        return ret;
}

static int cmd_handler_mi_batch_buffer_start(struct parser_exec_state *s)
{
        bool second_level;
        int ret = 0;
        struct intel_vgpu *vgpu = s->vgpu;

        if (s->buf_type == BATCH_BUFFER_2ND_LEVEL) {
                gvt_vgpu_err("Found MI_BATCH_BUFFER_START in 2nd level BB\n");
                return -EFAULT;
        }

        second_level = BATCH_BUFFER_2ND_LEVEL_BIT(cmd_val(s, 0)) == 1;
        if (second_level && (s->buf_type != BATCH_BUFFER_INSTRUCTION)) {
                gvt_vgpu_err("Jumping to 2nd level BB from RB is not allowed\n");
                return -EFAULT;
        }

        s->saved_buf_addr_type = s->buf_addr_type;
        addr_type_update_snb(s);
        if (s->buf_type == RING_BUFFER_INSTRUCTION) {
                s->ret_ip_gma_ring = s->ip_gma + cmd_length(s) * sizeof(u32);
                s->buf_type = BATCH_BUFFER_INSTRUCTION;
        } else if (second_level) {
                s->buf_type = BATCH_BUFFER_2ND_LEVEL;
                s->ret_ip_gma_bb = s->ip_gma + cmd_length(s) * sizeof(u32);
                s->ret_bb_va = s->ip_va + cmd_length(s) * sizeof(u32);
        }

        if (batch_buffer_needs_scan(s)) {
                ret = perform_bb_shadow(s);
                if (ret < 0)
                        gvt_vgpu_err("invalid shadow batch buffer\n");
        } else {
                /* emulate a batch buffer end to do return right */
                ret = cmd_handler_mi_batch_buffer_end(s);
                if (ret < 0)
                        return ret;
        }
        return ret;
}

static int mi_noop_index;

static const struct cmd_info cmd_info[] = {
        {"MI_NOOP", OP_MI_NOOP, F_LEN_CONST, R_ALL, D_ALL, 0, 1, NULL},

        {"MI_SET_PREDICATE", OP_MI_SET_PREDICATE, F_LEN_CONST, R_ALL, D_ALL,
                0, 1, NULL},

        {"MI_USER_INTERRUPT", OP_MI_USER_INTERRUPT, F_LEN_CONST, R_ALL, D_ALL,
                0, 1, cmd_handler_mi_user_interrupt},

        {"MI_WAIT_FOR_EVENT", OP_MI_WAIT_FOR_EVENT, F_LEN_CONST, R_RCS | R_BCS,
                D_ALL, 0, 1, cmd_handler_mi_wait_for_event},

        {"MI_FLUSH", OP_MI_FLUSH, F_LEN_CONST, R_ALL, D_ALL, 0, 1, NULL},

        {"MI_ARB_CHECK", OP_MI_ARB_CHECK, F_LEN_CONST, R_ALL, D_ALL, 0, 1,
                NULL},

        {"MI_RS_CONTROL", OP_MI_RS_CONTROL, F_LEN_CONST, R_RCS, D_ALL, 0, 1,
                NULL},

        {"MI_REPORT_HEAD", OP_MI_REPORT_HEAD, F_LEN_CONST, R_ALL, D_ALL, 0, 1,
                NULL},

        {"MI_ARB_ON_OFF", OP_MI_ARB_ON_OFF, F_LEN_CONST, R_ALL, D_ALL, 0, 1,
                NULL},

        {"MI_URB_ATOMIC_ALLOC", OP_MI_URB_ATOMIC_ALLOC, F_LEN_CONST, R_RCS,
                D_ALL, 0, 1, NULL},

        {"MI_BATCH_BUFFER_END", OP_MI_BATCH_BUFFER_END,
                F_IP_ADVANCE_CUSTOM | F_LEN_CONST, R_ALL, D_ALL, 0, 1,
                cmd_handler_mi_batch_buffer_end},

        {"MI_SUSPEND_FLUSH", OP_MI_SUSPEND_FLUSH, F_LEN_CONST, R_ALL, D_ALL,
                0, 1, NULL},

        {"MI_PREDICATE", OP_MI_PREDICATE, F_LEN_CONST, R_RCS, D_ALL, 0, 1,
                NULL},

        {"MI_TOPOLOGY_FILTER", OP_MI_TOPOLOGY_FILTER, F_LEN_CONST, R_ALL,
                D_ALL, 0, 1, NULL},

        {"MI_SET_APPID", OP_MI_SET_APPID, F_LEN_CONST, R_ALL, D_ALL, 0, 1,
                NULL},

        {"MI_RS_CONTEXT", OP_MI_RS_CONTEXT, F_LEN_CONST, R_RCS, D_ALL, 0, 1,
                NULL},

        {"MI_DISPLAY_FLIP", OP_MI_DISPLAY_FLIP, F_LEN_VAR | F_POST_HANDLE,
                R_RCS | R_BCS, D_ALL, 0, 8, cmd_handler_mi_display_flip},

        {"MI_SEMAPHORE_MBOX", OP_MI_SEMAPHORE_MBOX, F_LEN_VAR, R_ALL, D_ALL,
                0, 8, NULL},

        {"MI_MATH", OP_MI_MATH, F_LEN_VAR, R_ALL, D_ALL, 0, 8, NULL},

        {"MI_URB_CLEAR", OP_MI_URB_CLEAR, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"MI_SEMAPHORE_SIGNAL", OP_MI_SEMAPHORE_SIGNAL, F_LEN_VAR, R_ALL,
                D_BDW_PLUS, 0, 8, NULL},

        {"MI_SEMAPHORE_WAIT", OP_MI_SEMAPHORE_WAIT, F_LEN_VAR, R_ALL,
                D_BDW_PLUS, ADDR_FIX_1(2), 8, cmd_handler_mi_semaphore_wait},

        {"MI_STORE_DATA_IMM", OP_MI_STORE_DATA_IMM, F_LEN_VAR, R_ALL, D_BDW_PLUS,
                ADDR_FIX_1(1), 10, cmd_handler_mi_store_data_imm},

        {"MI_STORE_DATA_INDEX", OP_MI_STORE_DATA_INDEX, F_LEN_VAR, R_ALL, D_ALL,
                0, 8, cmd_handler_mi_store_data_index},

        {"MI_LOAD_REGISTER_IMM", OP_MI_LOAD_REGISTER_IMM, F_LEN_VAR, R_ALL,
                D_ALL, 0, 8, cmd_handler_lri},

        {"MI_UPDATE_GTT", OP_MI_UPDATE_GTT, F_LEN_VAR, R_ALL, D_BDW_PLUS, 0, 10,
                cmd_handler_mi_update_gtt},

        {"MI_STORE_REGISTER_MEM", OP_MI_STORE_REGISTER_MEM, F_LEN_VAR, R_ALL,
                D_ALL, ADDR_FIX_1(2), 8, cmd_handler_srm},

        {"MI_FLUSH_DW", OP_MI_FLUSH_DW, F_LEN_VAR, R_ALL, D_ALL, 0, 6,
                cmd_handler_mi_flush_dw},

        {"MI_CLFLUSH", OP_MI_CLFLUSH, F_LEN_VAR, R_ALL, D_ALL, ADDR_FIX_1(1),
                10, cmd_handler_mi_clflush},

        {"MI_REPORT_PERF_COUNT", OP_MI_REPORT_PERF_COUNT, F_LEN_VAR, R_ALL,
                D_ALL, ADDR_FIX_1(1), 6, cmd_handler_mi_report_perf_count},

        {"MI_LOAD_REGISTER_MEM", OP_MI_LOAD_REGISTER_MEM, F_LEN_VAR, R_ALL,
                D_ALL, ADDR_FIX_1(2), 8, cmd_handler_lrm},

        {"MI_LOAD_REGISTER_REG", OP_MI_LOAD_REGISTER_REG, F_LEN_VAR, R_ALL,
                D_ALL, 0, 8, cmd_handler_lrr},

        {"MI_RS_STORE_DATA_IMM", OP_MI_RS_STORE_DATA_IMM, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"MI_LOAD_URB_MEM", OP_MI_LOAD_URB_MEM, F_LEN_VAR, R_RCS, D_ALL,
                ADDR_FIX_1(2), 8, NULL},

        {"MI_STORE_URM_MEM", OP_MI_STORE_URM_MEM, F_LEN_VAR, R_RCS, D_ALL,
                ADDR_FIX_1(2), 8, NULL},

        {"MI_OP_2E", OP_MI_2E, F_LEN_VAR, R_ALL, D_BDW_PLUS, ADDR_FIX_2(1, 2),
                8, cmd_handler_mi_op_2e},

        {"MI_OP_2F", OP_MI_2F, F_LEN_VAR, R_ALL, D_BDW_PLUS, ADDR_FIX_1(1),
                8, cmd_handler_mi_op_2f},

        {"MI_BATCH_BUFFER_START", OP_MI_BATCH_BUFFER_START,
                F_IP_ADVANCE_CUSTOM, R_ALL, D_ALL, 0, 8,
                cmd_handler_mi_batch_buffer_start},

        {"MI_CONDITIONAL_BATCH_BUFFER_END", OP_MI_CONDITIONAL_BATCH_BUFFER_END,
                F_LEN_VAR, R_ALL, D_ALL, ADDR_FIX_1(2), 8,
                cmd_handler_mi_conditional_batch_buffer_end},

        {"MI_LOAD_SCAN_LINES_INCL", OP_MI_LOAD_SCAN_LINES_INCL, F_LEN_CONST,
                R_RCS | R_BCS, D_ALL, 0, 2, NULL},

        {"XY_SETUP_BLT", OP_XY_SETUP_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_2(4, 7), 8, NULL},

        {"XY_SETUP_CLIP_BLT", OP_XY_SETUP_CLIP_BLT, F_LEN_VAR, R_BCS, D_ALL,
                0, 8, NULL},

        {"XY_SETUP_MONO_PATTERN_SL_BLT", OP_XY_SETUP_MONO_PATTERN_SL_BLT,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_1(4), 8, NULL},

        {"XY_PIXEL_BLT", OP_XY_PIXEL_BLT, F_LEN_VAR, R_BCS, D_ALL, 0, 8, NULL},

        {"XY_SCANLINES_BLT", OP_XY_SCANLINES_BLT, F_LEN_VAR, R_BCS, D_ALL,
                0, 8, NULL},

        {"XY_TEXT_BLT", OP_XY_TEXT_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_1(3), 8, NULL},

        {"XY_TEXT_IMMEDIATE_BLT", OP_XY_TEXT_IMMEDIATE_BLT, F_LEN_VAR, R_BCS,
                D_ALL, 0, 8, NULL},

        {"XY_COLOR_BLT", OP_XY_COLOR_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_1(4), 8, NULL},

        {"XY_PAT_BLT", OP_XY_PAT_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_2(4, 5), 8, NULL},

        {"XY_MONO_PAT_BLT", OP_XY_MONO_PAT_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_1(4), 8, NULL},

        {"XY_SRC_COPY_BLT", OP_XY_SRC_COPY_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_2(4, 7), 8, NULL},

        {"XY_MONO_SRC_COPY_BLT", OP_XY_MONO_SRC_COPY_BLT, F_LEN_VAR, R_BCS,
                D_ALL, ADDR_FIX_2(4, 5), 8, NULL},

        {"XY_FULL_BLT", OP_XY_FULL_BLT, F_LEN_VAR, R_BCS, D_ALL, 0, 8, NULL},

        {"XY_FULL_MONO_SRC_BLT", OP_XY_FULL_MONO_SRC_BLT, F_LEN_VAR, R_BCS,
                D_ALL, ADDR_FIX_3(4, 5, 8), 8, NULL},

        {"XY_FULL_MONO_PATTERN_BLT", OP_XY_FULL_MONO_PATTERN_BLT, F_LEN_VAR,
                R_BCS, D_ALL, ADDR_FIX_2(4, 7), 8, NULL},

        {"XY_FULL_MONO_PATTERN_MONO_SRC_BLT",
                OP_XY_FULL_MONO_PATTERN_MONO_SRC_BLT,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_2(4, 5), 8, NULL},

        {"XY_MONO_PAT_FIXED_BLT", OP_XY_MONO_PAT_FIXED_BLT, F_LEN_VAR, R_BCS,
                D_ALL, ADDR_FIX_1(4), 8, NULL},

        {"XY_MONO_SRC_COPY_IMMEDIATE_BLT", OP_XY_MONO_SRC_COPY_IMMEDIATE_BLT,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_1(4), 8, NULL},

        {"XY_PAT_BLT_IMMEDIATE", OP_XY_PAT_BLT_IMMEDIATE, F_LEN_VAR, R_BCS,
                D_ALL, ADDR_FIX_1(4), 8, NULL},

        {"XY_SRC_COPY_CHROMA_BLT", OP_XY_SRC_COPY_CHROMA_BLT, F_LEN_VAR, R_BCS,
                D_ALL, ADDR_FIX_2(4, 7), 8, NULL},

        {"XY_FULL_IMMEDIATE_PATTERN_BLT", OP_XY_FULL_IMMEDIATE_PATTERN_BLT,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_2(4, 7), 8, NULL},

        {"XY_FULL_MONO_SRC_IMMEDIATE_PATTERN_BLT",
                OP_XY_FULL_MONO_SRC_IMMEDIATE_PATTERN_BLT,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_2(4, 5), 8, NULL},

        {"XY_PAT_CHROMA_BLT", OP_XY_PAT_CHROMA_BLT, F_LEN_VAR, R_BCS, D_ALL,
                ADDR_FIX_2(4, 5), 8, NULL},

        {"XY_PAT_CHROMA_BLT_IMMEDIATE", OP_XY_PAT_CHROMA_BLT_IMMEDIATE,
                F_LEN_VAR, R_BCS, D_ALL, ADDR_FIX_1(4), 8, NULL},

        {"3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP",
                OP_3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_VIEWPORT_STATE_POINTERS_CC",
                OP_3DSTATE_VIEWPORT_STATE_POINTERS_CC,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BLEND_STATE_POINTERS",
                OP_3DSTATE_BLEND_STATE_POINTERS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DEPTH_STENCIL_STATE_POINTERS",
                OP_3DSTATE_DEPTH_STENCIL_STATE_POINTERS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_POINTERS_VS",
                OP_3DSTATE_BINDING_TABLE_POINTERS_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_POINTERS_HS",
                OP_3DSTATE_BINDING_TABLE_POINTERS_HS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_POINTERS_DS",
                OP_3DSTATE_BINDING_TABLE_POINTERS_DS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_POINTERS_GS",
                OP_3DSTATE_BINDING_TABLE_POINTERS_GS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_POINTERS_PS",
                OP_3DSTATE_BINDING_TABLE_POINTERS_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_STATE_POINTERS_VS",
                OP_3DSTATE_SAMPLER_STATE_POINTERS_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_STATE_POINTERS_HS",
                OP_3DSTATE_SAMPLER_STATE_POINTERS_HS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_STATE_POINTERS_DS",
                OP_3DSTATE_SAMPLER_STATE_POINTERS_DS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_STATE_POINTERS_GS",
                OP_3DSTATE_SAMPLER_STATE_POINTERS_GS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_STATE_POINTERS_PS",
                OP_3DSTATE_SAMPLER_STATE_POINTERS_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_URB_VS", OP_3DSTATE_URB_VS, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"3DSTATE_URB_HS", OP_3DSTATE_URB_HS, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"3DSTATE_URB_DS", OP_3DSTATE_URB_DS, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"3DSTATE_URB_GS", OP_3DSTATE_URB_GS, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"3DSTATE_GATHER_CONSTANT_VS", OP_3DSTATE_GATHER_CONSTANT_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_GATHER_CONSTANT_GS", OP_3DSTATE_GATHER_CONSTANT_GS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_GATHER_CONSTANT_HS", OP_3DSTATE_GATHER_CONSTANT_HS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_GATHER_CONSTANT_DS", OP_3DSTATE_GATHER_CONSTANT_DS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_GATHER_CONSTANT_PS", OP_3DSTATE_GATHER_CONSTANT_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_CONSTANTF_VS", OP_3DSTATE_DX9_CONSTANTF_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 11, NULL},

        {"3DSTATE_DX9_CONSTANTF_PS", OP_3DSTATE_DX9_CONSTANTF_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 11, NULL},

        {"3DSTATE_DX9_CONSTANTI_VS", OP_3DSTATE_DX9_CONSTANTI_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_CONSTANTI_PS", OP_3DSTATE_DX9_CONSTANTI_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_CONSTANTB_VS", OP_3DSTATE_DX9_CONSTANTB_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_CONSTANTB_PS", OP_3DSTATE_DX9_CONSTANTB_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_LOCAL_VALID_VS", OP_3DSTATE_DX9_LOCAL_VALID_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_LOCAL_VALID_PS", OP_3DSTATE_DX9_LOCAL_VALID_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_GENERATE_ACTIVE_VS", OP_3DSTATE_DX9_GENERATE_ACTIVE_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DX9_GENERATE_ACTIVE_PS", OP_3DSTATE_DX9_GENERATE_ACTIVE_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_BINDING_TABLE_EDIT_VS", OP_3DSTATE_BINDING_TABLE_EDIT_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 9, NULL},

        {"3DSTATE_BINDING_TABLE_EDIT_GS", OP_3DSTATE_BINDING_TABLE_EDIT_GS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 9, NULL},

        {"3DSTATE_BINDING_TABLE_EDIT_HS", OP_3DSTATE_BINDING_TABLE_EDIT_HS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 9, NULL},

        {"3DSTATE_BINDING_TABLE_EDIT_DS", OP_3DSTATE_BINDING_TABLE_EDIT_DS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 9, NULL},

        {"3DSTATE_BINDING_TABLE_EDIT_PS", OP_3DSTATE_BINDING_TABLE_EDIT_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 9, NULL},

        {"3DSTATE_VF_INSTANCING", OP_3DSTATE_VF_INSTANCING, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_VF_SGVS", OP_3DSTATE_VF_SGVS, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0, 8,
                NULL},

        {"3DSTATE_VF_TOPOLOGY", OP_3DSTATE_VF_TOPOLOGY, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_WM_CHROMAKEY", OP_3DSTATE_WM_CHROMAKEY, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_PS_BLEND", OP_3DSTATE_PS_BLEND, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0,
                8, NULL},

        {"3DSTATE_WM_DEPTH_STENCIL", OP_3DSTATE_WM_DEPTH_STENCIL, F_LEN_VAR,
                R_RCS, D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_PS_EXTRA", OP_3DSTATE_PS_EXTRA, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0,
                8, NULL},

        {"3DSTATE_RASTER", OP_3DSTATE_RASTER, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0, 8,
                NULL},

        {"3DSTATE_SBE_SWIZ", OP_3DSTATE_SBE_SWIZ, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0, 8,
                NULL},

        {"3DSTATE_WM_HZ_OP", OP_3DSTATE_WM_HZ_OP, F_LEN_VAR, R_RCS, D_BDW_PLUS, 0, 8,
                NULL},

        {"3DSTATE_VERTEX_BUFFERS", OP_3DSTATE_VERTEX_BUFFERS, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_VERTEX_ELEMENTS", OP_3DSTATE_VERTEX_ELEMENTS, F_LEN_VAR,
                R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_INDEX_BUFFER", OP_3DSTATE_INDEX_BUFFER, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, ADDR_FIX_1(2), 8, NULL},

        {"3DSTATE_VF_STATISTICS", OP_3DSTATE_VF_STATISTICS, F_LEN_CONST,
                R_RCS, D_ALL, 0, 1, NULL},

        {"3DSTATE_VF", OP_3DSTATE_VF, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_CC_STATE_POINTERS", OP_3DSTATE_CC_STATE_POINTERS, F_LEN_VAR,
                R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SCISSOR_STATE_POINTERS", OP_3DSTATE_SCISSOR_STATE_POINTERS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_GS", OP_3DSTATE_GS, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_CLIP", OP_3DSTATE_CLIP, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_WM", OP_3DSTATE_WM, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_CONSTANT_GS", OP_3DSTATE_CONSTANT_GS, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_CONSTANT_PS", OP_3DSTATE_CONSTANT_PS, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_SAMPLE_MASK", OP_3DSTATE_SAMPLE_MASK, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"3DSTATE_CONSTANT_HS", OP_3DSTATE_CONSTANT_HS, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_CONSTANT_DS", OP_3DSTATE_CONSTANT_DS, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_HS", OP_3DSTATE_HS, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_TE", OP_3DSTATE_TE, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DS", OP_3DSTATE_DS, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_STREAMOUT", OP_3DSTATE_STREAMOUT, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"3DSTATE_SBE", OP_3DSTATE_SBE, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PS", OP_3DSTATE_PS, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_DRAWING_RECTANGLE", OP_3DSTATE_DRAWING_RECTANGLE, F_LEN_VAR,
                R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_PALETTE_LOAD0", OP_3DSTATE_SAMPLER_PALETTE_LOAD0,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_CHROMA_KEY", OP_3DSTATE_CHROMA_KEY, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"3DSTATE_DEPTH_BUFFER", OP_3DSTATE_DEPTH_BUFFER, F_LEN_VAR, R_RCS,
                D_ALL, ADDR_FIX_1(2), 8, NULL},

        {"3DSTATE_POLY_STIPPLE_OFFSET", OP_3DSTATE_POLY_STIPPLE_OFFSET,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_POLY_STIPPLE_PATTERN", OP_3DSTATE_POLY_STIPPLE_PATTERN,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_LINE_STIPPLE", OP_3DSTATE_LINE_STIPPLE, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"3DSTATE_AA_LINE_PARAMS", OP_3DSTATE_AA_LINE_PARAMS, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"3DSTATE_GS_SVB_INDEX", OP_3DSTATE_GS_SVB_INDEX, F_LEN_VAR, R_RCS,
                D_ALL, 0, 8, NULL},

        {"3DSTATE_SAMPLER_PALETTE_LOAD1", OP_3DSTATE_SAMPLER_PALETTE_LOAD1,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_MULTISAMPLE", OP_3DSTATE_MULTISAMPLE_BDW, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"3DSTATE_STENCIL_BUFFER", OP_3DSTATE_STENCIL_BUFFER, F_LEN_VAR, R_RCS,
                D_ALL, ADDR_FIX_1(2), 8, NULL},

        {"3DSTATE_HIER_DEPTH_BUFFER", OP_3DSTATE_HIER_DEPTH_BUFFER, F_LEN_VAR,
                R_RCS, D_ALL, ADDR_FIX_1(2), 8, NULL},

        {"3DSTATE_CLEAR_PARAMS", OP_3DSTATE_CLEAR_PARAMS, F_LEN_VAR,
                R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PUSH_CONSTANT_ALLOC_VS", OP_3DSTATE_PUSH_CONSTANT_ALLOC_VS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PUSH_CONSTANT_ALLOC_HS", OP_3DSTATE_PUSH_CONSTANT_ALLOC_HS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PUSH_CONSTANT_ALLOC_DS", OP_3DSTATE_PUSH_CONSTANT_ALLOC_DS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PUSH_CONSTANT_ALLOC_GS", OP_3DSTATE_PUSH_CONSTANT_ALLOC_GS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_PUSH_CONSTANT_ALLOC_PS", OP_3DSTATE_PUSH_CONSTANT_ALLOC_PS,
                F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_MONOFILTER_SIZE", OP_3DSTATE_MONOFILTER_SIZE, F_LEN_VAR,
                R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SO_DECL_LIST", OP_3DSTATE_SO_DECL_LIST, F_LEN_VAR, R_RCS,
                D_ALL, 0, 9, NULL},

        {"3DSTATE_SO_BUFFER", OP_3DSTATE_SO_BUFFER, F_LEN_VAR, R_RCS, D_BDW_PLUS,
                ADDR_FIX_2(2, 4), 8, NULL},

        {"3DSTATE_BINDING_TABLE_POOL_ALLOC",
                OP_3DSTATE_BINDING_TABLE_POOL_ALLOC,
                F_LEN_VAR, R_RCS, D_BDW_PLUS, ADDR_FIX_1(1), 8, NULL},

        {"3DSTATE_GATHER_POOL_ALLOC", OP_3DSTATE_GATHER_POOL_ALLOC,
                F_LEN_VAR, R_RCS, D_BDW_PLUS, ADDR_FIX_1(1), 8, NULL},

        {"3DSTATE_DX9_CONSTANT_BUFFER_POOL_ALLOC",
                OP_3DSTATE_DX9_CONSTANT_BUFFER_POOL_ALLOC,
                F_LEN_VAR, R_RCS, D_BDW_PLUS, ADDR_FIX_1(1), 8, NULL},

        {"3DSTATE_SAMPLE_PATTERN", OP_3DSTATE_SAMPLE_PATTERN, F_LEN_VAR, R_RCS,
                D_BDW_PLUS, 0, 8, NULL},

        {"PIPE_CONTROL", OP_PIPE_CONTROL, F_LEN_VAR, R_RCS, D_ALL,
                ADDR_FIX_1(2), 8, cmd_handler_pipe_control},

        {"3DPRIMITIVE", OP_3DPRIMITIVE, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"PIPELINE_SELECT", OP_PIPELINE_SELECT, F_LEN_CONST, R_RCS, D_ALL, 0,
                1, NULL},

        {"STATE_PREFETCH", OP_STATE_PREFETCH, F_LEN_VAR, R_RCS, D_ALL,
                ADDR_FIX_1(1), 8, NULL},

        {"STATE_SIP", OP_STATE_SIP, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"STATE_BASE_ADDRESS", OP_STATE_BASE_ADDRESS, F_LEN_VAR, R_RCS, D_BDW_PLUS,
                ADDR_FIX_5(1, 3, 4, 5, 6), 8, NULL},

        {"OP_3D_MEDIA_0_1_4", OP_3D_MEDIA_0_1_4, F_LEN_VAR, R_RCS, D_ALL,
                ADDR_FIX_1(1), 8, NULL},

        {"3DSTATE_VS", OP_3DSTATE_VS, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_SF", OP_3DSTATE_SF, F_LEN_VAR, R_RCS, D_ALL, 0, 8, NULL},

        {"3DSTATE_CONSTANT_VS", OP_3DSTATE_CONSTANT_VS, F_LEN_VAR, R_RCS, D_BDW_PLUS,
                0, 8, NULL},

        {"3DSTATE_COMPONENT_PACKING", OP_3DSTATE_COMPONENT_PACKING, F_LEN_VAR, R_RCS,
                D_SKL_PLUS, 0, 8, NULL},

        {"MEDIA_INTERFACE_DESCRIPTOR_LOAD", OP_MEDIA_INTERFACE_DESCRIPTOR_LOAD,
                F_LEN_VAR, R_RCS, D_ALL, 0, 16, NULL},

        {"MEDIA_GATEWAY_STATE", OP_MEDIA_GATEWAY_STATE, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"MEDIA_STATE_FLUSH", OP_MEDIA_STATE_FLUSH, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"MEDIA_POOL_STATE", OP_MEDIA_POOL_STATE, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"MEDIA_OBJECT", OP_MEDIA_OBJECT, F_LEN_VAR, R_RCS, D_ALL, 0, 16, NULL},

        {"MEDIA_CURBE_LOAD", OP_MEDIA_CURBE_LOAD, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"MEDIA_OBJECT_PRT", OP_MEDIA_OBJECT_PRT, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"MEDIA_OBJECT_WALKER", OP_MEDIA_OBJECT_WALKER, F_LEN_VAR, R_RCS, D_ALL,
                0, 16, NULL},

        {"GPGPU_WALKER", OP_GPGPU_WALKER, F_LEN_VAR, R_RCS, D_ALL,
                0, 8, NULL},

        {"MEDIA_VFE_STATE", OP_MEDIA_VFE_STATE, F_LEN_VAR, R_RCS, D_ALL, 0, 16,
                NULL},

        {"3DSTATE_VF_STATISTICS_GM45", OP_3DSTATE_VF_STATISTICS_GM45,
                F_LEN_CONST, R_ALL, D_ALL, 0, 1, NULL},

        {"MFX_PIPE_MODE_SELECT", OP_MFX_PIPE_MODE_SELECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_SURFACE_STATE", OP_MFX_SURFACE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_PIPE_BUF_ADDR_STATE", OP_MFX_PIPE_BUF_ADDR_STATE, F_LEN_VAR,
                R_VCS, D_BDW_PLUS, 0, 12, NULL},

        {"MFX_IND_OBJ_BASE_ADDR_STATE", OP_MFX_IND_OBJ_BASE_ADDR_STATE,
                F_LEN_VAR, R_VCS, D_BDW_PLUS, 0, 12, NULL},

        {"MFX_BSP_BUF_BASE_ADDR_STATE", OP_MFX_BSP_BUF_BASE_ADDR_STATE,
                F_LEN_VAR, R_VCS, D_BDW_PLUS, ADDR_FIX_3(1, 3, 5), 12, NULL},

        {"OP_2_0_0_5", OP_2_0_0_5, F_LEN_VAR, R_VCS, D_BDW_PLUS, 0, 12, NULL},

        {"MFX_STATE_POINTER", OP_MFX_STATE_POINTER, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_QM_STATE", OP_MFX_QM_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_FQM_STATE", OP_MFX_FQM_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_PAK_INSERT_OBJECT", OP_MFX_PAK_INSERT_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_STITCH_OBJECT", OP_MFX_STITCH_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_IT_OBJECT", OP_MFD_IT_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_WAIT", OP_MFX_WAIT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 6, NULL},

        {"MFX_AVC_IMG_STATE", OP_MFX_AVC_IMG_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_AVC_QM_STATE", OP_MFX_AVC_QM_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_AVC_DIRECTMODE_STATE", OP_MFX_AVC_DIRECTMODE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_AVC_SLICE_STATE", OP_MFX_AVC_SLICE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_AVC_REF_IDX_STATE", OP_MFX_AVC_REF_IDX_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_AVC_WEIGHTOFFSET_STATE", OP_MFX_AVC_WEIGHTOFFSET_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_AVC_PICID_STATE", OP_MFD_AVC_PICID_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},
        {"MFD_AVC_DPB_STATE", OP_MFD_AVC_DPB_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_AVC_BSD_OBJECT", OP_MFD_AVC_BSD_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_AVC_SLICEADDR", OP_MFD_AVC_SLICEADDR, F_LEN_VAR,
                R_VCS, D_ALL, ADDR_FIX_1(2), 12, NULL},

        {"MFC_AVC_PAK_OBJECT", OP_MFC_AVC_PAK_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_VC1_PRED_PIPE_STATE", OP_MFX_VC1_PRED_PIPE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_VC1_DIRECTMODE_STATE", OP_MFX_VC1_DIRECTMODE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_VC1_SHORT_PIC_STATE", OP_MFD_VC1_SHORT_PIC_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_VC1_LONG_PIC_STATE", OP_MFD_VC1_LONG_PIC_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_VC1_BSD_OBJECT", OP_MFD_VC1_BSD_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFC_MPEG2_SLICEGROUP_STATE", OP_MFC_MPEG2_SLICEGROUP_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFC_MPEG2_PAK_OBJECT", OP_MFC_MPEG2_PAK_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_MPEG2_PIC_STATE", OP_MFX_MPEG2_PIC_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_MPEG2_QM_STATE", OP_MFX_MPEG2_QM_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_MPEG2_BSD_OBJECT", OP_MFD_MPEG2_BSD_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_2_6_0_0", OP_MFX_2_6_0_0, F_LEN_VAR, R_VCS, D_ALL,
                0, 16, NULL},

        {"MFX_2_6_0_9", OP_MFX_2_6_0_9, F_LEN_VAR, R_VCS, D_ALL, 0, 16, NULL},

        {"MFX_2_6_0_8", OP_MFX_2_6_0_8, F_LEN_VAR, R_VCS, D_ALL, 0, 16, NULL},

        {"MFX_JPEG_PIC_STATE", OP_MFX_JPEG_PIC_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFX_JPEG_HUFF_TABLE_STATE", OP_MFX_JPEG_HUFF_TABLE_STATE, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"MFD_JPEG_BSD_OBJECT", OP_MFD_JPEG_BSD_OBJECT, F_LEN_VAR,
                R_VCS, D_ALL, 0, 12, NULL},

        {"VEBOX_STATE", OP_VEB_STATE, F_LEN_VAR, R_VECS, D_ALL, 0, 12, NULL},

        {"VEBOX_SURFACE_STATE", OP_VEB_SURFACE_STATE, F_LEN_VAR, R_VECS, D_ALL,
                0, 12, NULL},

        {"VEB_DI_IECP", OP_VEB_DNDI_IECP_STATE, F_LEN_VAR, R_VECS, D_BDW_PLUS,
                0, 12, NULL},
};

static void add_cmd_entry(struct intel_gvt *gvt, struct cmd_entry *e)
{
        hash_add(gvt->cmd_table, &e->hlist, e->info->opcode);
}

/* call the cmd handler, and advance ip */
static int cmd_parser_exec(struct parser_exec_state *s)
{
        struct intel_vgpu *vgpu = s->vgpu;
        const struct cmd_info *info;
        u32 cmd;
        int ret = 0;

        cmd = cmd_val(s, 0);

        /* fastpath for MI_NOOP */
        if (cmd == MI_NOOP)
                info = &cmd_info[mi_noop_index];
        else
                info = get_cmd_info(s->vgpu->gvt, cmd, s->ring_id);

        if (info == NULL) {
                gvt_vgpu_err("unknown cmd 0x%x, opcode=0x%x, addr_type=%s, ring %d, workload=%p\n",
                                cmd, get_opcode(cmd, s->ring_id),
                                (s->buf_addr_type == PPGTT_BUFFER) ?
                                "ppgtt" : "ggtt", s->ring_id, s->workload);
                return -EBADRQC;
        }

        s->info = info;

        trace_gvt_command(vgpu->id, s->ring_id, s->ip_gma, s->ip_va,
                          cmd_length(s), s->buf_type, s->buf_addr_type,
                          s->workload, info->name);

        if (info->handler) {
                ret = info->handler(s);
                if (ret < 0) {
                        gvt_vgpu_err("%s handler error\n", info->name);
                        return ret;
                }
        }

        if (!(info->flag & F_IP_ADVANCE_CUSTOM)) {
                ret = cmd_advance_default(s);
                if (ret) {
                        gvt_vgpu_err("%s IP advance error\n", info->name);
                        return ret;
                }
        }
        return 0;
}

static inline bool gma_out_of_range(unsigned long gma,
                unsigned long gma_head, unsigned int gma_tail)
{
        if (gma_tail >= gma_head)
                return (gma < gma_head) || (gma > gma_tail);
        else
                return (gma > gma_tail) && (gma < gma_head);
}

/* Keep the consistent return type, e.g EBADRQC for unknown
 * cmd, EFAULT for invalid address, EPERM for nonpriv. later
 * works as the input of VM healthy status.
 */
static int command_scan(struct parser_exec_state *s,
                unsigned long rb_head, unsigned long rb_tail,
                unsigned long rb_start, unsigned long rb_len)
{

        unsigned long gma_head, gma_tail, gma_bottom;
        int ret = 0;
        struct intel_vgpu *vgpu = s->vgpu;

        gma_head = rb_start + rb_head;
        gma_tail = rb_start + rb_tail;
        gma_bottom = rb_start +  rb_len;

        while (s->ip_gma != gma_tail) {
                if (s->buf_type == RING_BUFFER_INSTRUCTION) {
                        if (!(s->ip_gma >= rb_start) ||
                                !(s->ip_gma < gma_bottom)) {
                                gvt_vgpu_err("ip_gma %lx out of ring scope."
                                        "(base:0x%lx, bottom: 0x%lx)\n",
                                        s->ip_gma, rb_start,
                                        gma_bottom);
                                parser_exec_state_dump(s);
                                return -EFAULT;
                        }
                        if (gma_out_of_range(s->ip_gma, gma_head, gma_tail)) {
                                gvt_vgpu_err("ip_gma %lx out of range."
                                        "base 0x%lx head 0x%lx tail 0x%lx\n",
                                        s->ip_gma, rb_start,
                                        rb_head, rb_tail);
                                parser_exec_state_dump(s);
                                break;
                        }
                }
                ret = cmd_parser_exec(s);
                if (ret) {
                        gvt_vgpu_err("cmd parser error\n");
                        parser_exec_state_dump(s);
                        break;
                }
        }

        return ret;
}

static int scan_workload(struct intel_vgpu_workload *workload)
{
        unsigned long gma_head, gma_tail, gma_bottom;
        struct parser_exec_state s;
        int ret = 0;

        /* ring base is page aligned */
        if (WARN_ON(!IS_ALIGNED(workload->rb_start, I915_GTT_PAGE_SIZE)))
                return -EINVAL;

        gma_head = workload->rb_start + workload->rb_head;
        gma_tail = workload->rb_start + workload->rb_tail;
        gma_bottom = workload->rb_start +  _RING_CTL_BUF_SIZE(workload->rb_ctl);

        s.buf_type = RING_BUFFER_INSTRUCTION;
        s.buf_addr_type = GTT_BUFFER;
        s.vgpu = workload->vgpu;
        s.ring_id = workload->ring_id;
        s.ring_start = workload->rb_start;
        s.ring_size = _RING_CTL_BUF_SIZE(workload->rb_ctl);
        s.ring_head = gma_head;
        s.ring_tail = gma_tail;
        s.rb_va = workload->shadow_ring_buffer_va;
        s.workload = workload;
        s.is_ctx_wa = false;

        if ((bypass_scan_mask & (1 << workload->ring_id)) ||
                gma_head == gma_tail)
                return 0;

        ret = ip_gma_set(&s, gma_head);
        if (ret)
                goto out;

        ret = command_scan(&s, workload->rb_head, workload->rb_tail,
                workload->rb_start, _RING_CTL_BUF_SIZE(workload->rb_ctl));

out:
        return ret;
}

static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{

        unsigned long gma_head, gma_tail, gma_bottom, ring_size, ring_tail;
        struct parser_exec_state s;
        int ret = 0;
        struct intel_vgpu_workload *workload = container_of(wa_ctx,
                                struct intel_vgpu_workload,
                                wa_ctx);

        /* ring base is page aligned */
        if (WARN_ON(!IS_ALIGNED(wa_ctx->indirect_ctx.guest_gma,
                                        I915_GTT_PAGE_SIZE)))
                return -EINVAL;

        ring_tail = wa_ctx->indirect_ctx.size + 3 * sizeof(u32);
        ring_size = round_up(wa_ctx->indirect_ctx.size + CACHELINE_BYTES,
                        PAGE_SIZE);
        gma_head = wa_ctx->indirect_ctx.guest_gma;
        gma_tail = wa_ctx->indirect_ctx.guest_gma + ring_tail;
        gma_bottom = wa_ctx->indirect_ctx.guest_gma + ring_size;

        s.buf_type = RING_BUFFER_INSTRUCTION;
        s.buf_addr_type = GTT_BUFFER;
        s.vgpu = workload->vgpu;
        s.ring_id = workload->ring_id;
        s.ring_start = wa_ctx->indirect_ctx.guest_gma;
        s.ring_size = ring_size;
        s.ring_head = gma_head;
        s.ring_tail = gma_tail;
        s.rb_va = wa_ctx->indirect_ctx.shadow_va;
        s.workload = workload;
        s.is_ctx_wa = true;

        ret = ip_gma_set(&s, gma_head);
        if (ret)
                goto out;

        ret = command_scan(&s, 0, ring_tail,
                wa_ctx->indirect_ctx.guest_gma, ring_size);
out:
        return ret;
}

static int shadow_workload_ring_buffer(struct intel_vgpu_workload *workload)
{
        struct intel_vgpu *vgpu = workload->vgpu;
        struct intel_vgpu_submission *s = &vgpu->submission;
        unsigned long gma_head, gma_tail, gma_top, guest_rb_size;
        void *shadow_ring_buffer_va;
        int ring_id = workload->ring_id;
        int ret;

        guest_rb_size = _RING_CTL_BUF_SIZE(workload->rb_ctl);

        /* calculate workload ring buffer size */
        workload->rb_len = (workload->rb_tail + guest_rb_size -
                        workload->rb_head) % guest_rb_size;

        gma_head = workload->rb_start + workload->rb_head;
        gma_tail = workload->rb_start + workload->rb_tail;
        gma_top = workload->rb_start + guest_rb_size;

        if (workload->rb_len > s->ring_scan_buffer_size[ring_id]) {
                void *p;

                /* realloc the new ring buffer if needed */
                p = krealloc(s->ring_scan_buffer[ring_id], workload->rb_len,
                                GFP_KERNEL);
                if (!p) {
                        gvt_vgpu_err("fail to re-alloc ring scan buffer\n");
                        return -ENOMEM;
                }
                s->ring_scan_buffer[ring_id] = p;
                s->ring_scan_buffer_size[ring_id] = workload->rb_len;
        }

        shadow_ring_buffer_va = s->ring_scan_buffer[ring_id];

        /* get shadow ring buffer va */
        workload->shadow_ring_buffer_va = shadow_ring_buffer_va;

        /* head > tail --> copy head <-> top */
        if (gma_head > gma_tail) {
                ret = copy_gma_to_hva(vgpu, vgpu->gtt.ggtt_mm,
                                      gma_head, gma_top, shadow_ring_buffer_va);
                if (ret < 0) {
                        gvt_vgpu_err("fail to copy guest ring buffer\n");
                        return ret;
                }
                shadow_ring_buffer_va += ret;
                gma_head = workload->rb_start;
        }

        /* copy head or start <-> tail */
        ret = copy_gma_to_hva(vgpu, vgpu->gtt.ggtt_mm, gma_head, gma_tail,
                                shadow_ring_buffer_va);
        if (ret < 0) {
                gvt_vgpu_err("fail to copy guest ring buffer\n");
                return ret;
        }
        return 0;
}

int intel_gvt_scan_and_shadow_ringbuffer(struct intel_vgpu_workload *workload)
{
        int ret;
        struct intel_vgpu *vgpu = workload->vgpu;

        ret = shadow_workload_ring_buffer(workload);
        if (ret) {
                gvt_vgpu_err("fail to shadow workload ring_buffer\n");
                return ret;
        }

        ret = scan_workload(workload);
        if (ret) {
                gvt_vgpu_err("scan workload error\n");
                return ret;
        }
        return 0;
}

static int shadow_indirect_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{
        int ctx_size = wa_ctx->indirect_ctx.size;
        unsigned long guest_gma = wa_ctx->indirect_ctx.guest_gma;
        struct intel_vgpu_workload *workload = container_of(wa_ctx,
                                        struct intel_vgpu_workload,
                                        wa_ctx);
        struct intel_vgpu *vgpu = workload->vgpu;
        struct drm_i915_gem_object *obj;
        int ret = 0;
        void *map;

        obj = i915_gem_object_create_shmem(workload->vgpu->gvt->dev_priv,
                                           roundup(ctx_size + CACHELINE_BYTES,
                                                   PAGE_SIZE));
        if (IS_ERR(obj))
                return PTR_ERR(obj);

        /* get the va of the shadow batch buffer */
        map = i915_gem_object_pin_map(obj, I915_MAP_WB);
        if (IS_ERR(map)) {
                gvt_vgpu_err("failed to vmap shadow indirect ctx\n");
                ret = PTR_ERR(map);
                goto put_obj;
        }

        i915_gem_object_lock(obj);
        ret = i915_gem_object_set_to_cpu_domain(obj, false);
        i915_gem_object_unlock(obj);
        if (ret) {
                gvt_vgpu_err("failed to set shadow indirect ctx to CPU\n");
                goto unmap_src;
        }

        ret = copy_gma_to_hva(workload->vgpu,
                                workload->vgpu->gtt.ggtt_mm,
                                guest_gma, guest_gma + ctx_size,
                                map);
        if (ret < 0) {
                gvt_vgpu_err("fail to copy guest indirect ctx\n");
                goto unmap_src;
        }

        wa_ctx->indirect_ctx.obj = obj;
        wa_ctx->indirect_ctx.shadow_va = map;
        return 0;

unmap_src:
        i915_gem_object_unpin_map(obj);
put_obj:
        i915_gem_object_put(obj);
        return ret;
}

static int combine_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{
        u32 per_ctx_start[CACHELINE_DWORDS] = {0};
        unsigned char *bb_start_sva;

        if (!wa_ctx->per_ctx.valid)
                return 0;

        per_ctx_start[0] = 0x18800001;
        per_ctx_start[1] = wa_ctx->per_ctx.guest_gma;

        bb_start_sva = (unsigned char *)wa_ctx->indirect_ctx.shadow_va +
                                wa_ctx->indirect_ctx.size;

        memcpy(bb_start_sva, per_ctx_start, CACHELINE_BYTES);

        return 0;
}

int intel_gvt_scan_and_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{
        int ret;
        struct intel_vgpu_workload *workload = container_of(wa_ctx,
                                        struct intel_vgpu_workload,
                                        wa_ctx);
        struct intel_vgpu *vgpu = workload->vgpu;

        if (wa_ctx->indirect_ctx.size == 0)
                return 0;

        ret = shadow_indirect_ctx(wa_ctx);
        if (ret) {
                gvt_vgpu_err("fail to shadow indirect ctx\n");
                return ret;
        }

        combine_wa_ctx(wa_ctx);

        ret = scan_wa_ctx(wa_ctx);
        if (ret) {
                gvt_vgpu_err("scan wa ctx error\n");
                return ret;
        }

        return 0;
}

static const struct cmd_info *find_cmd_entry_any_ring(struct intel_gvt *gvt,
                unsigned int opcode, unsigned long rings)
{
        const struct cmd_info *info = NULL;
        unsigned int ring;

        for_each_set_bit(ring, &rings, I915_NUM_ENGINES) {
                info = find_cmd_entry(gvt, opcode, ring);
                if (info)
                        break;
        }
        return info;
}

static int init_cmd_table(struct intel_gvt *gvt)
{
        int i;
        struct cmd_entry *e;
        const struct cmd_info *info;
        unsigned int gen_type;

        gen_type = intel_gvt_get_device_type(gvt);

        for (i = 0; i < ARRAY_SIZE(cmd_info); i++) {
                if (!(cmd_info[i].devices & gen_type))
                        continue;

                e = kzalloc(sizeof(*e), GFP_KERNEL);
                if (!e)
                        return -ENOMEM;

                e->info = &cmd_info[i];
                info = find_cmd_entry_any_ring(gvt,
                                e->info->opcode, e->info->rings);
                if (info) {
                        gvt_err("%s %s duplicated\n", e->info->name,
                                        info->name);
                        kfree(e);
                        return -EEXIST;
                }
                if (cmd_info[i].opcode == OP_MI_NOOP)
                        mi_noop_index = i;

                INIT_HLIST_NODE(&e->hlist);
                add_cmd_entry(gvt, e);
                gvt_dbg_cmd("add %-30s op %04x flag %x devs %02x rings %02x\n",
                                e->info->name, e->info->opcode, e->info->flag,
                                e->info->devices, e->info->rings);
        }
        return 0;
}

static void clean_cmd_table(struct intel_gvt *gvt)
{
        struct hlist_node *tmp;
        struct cmd_entry *e;
        int i;

        hash_for_each_safe(gvt->cmd_table, i, tmp, e, hlist)
                kfree(e);

        hash_init(gvt->cmd_table);
}

void intel_gvt_clean_cmd_parser(struct intel_gvt *gvt)
{
        clean_cmd_table(gvt);
}

int intel_gvt_init_cmd_parser(struct intel_gvt *gvt)
{
        int ret;

        ret = init_cmd_table(gvt);
        if (ret) {
                intel_gvt_clean_cmd_parser(gvt);
                return ret;
        }
        return 0;
}