LXR linux/include/uapi/drm/etnaviv

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * Copyright (C) 2015 Etnaviv Project
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of the GNU General Public License version 2 as published by
   7 * the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 *
  14 * You should have received a copy of the GNU General Public License along with
  15 * this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18#ifndef __ETNAVIV_DRM_H__
  19#define __ETNAVIV_DRM_H__
  20
  21#include "drm.h"
  22
  23#if defined(__cplusplus)
  24extern "C" {
  25#endif
  26
  27/* Please note that modifications to all structs defined here are
  28 * subject to backwards-compatibility constraints:
  29 *  1) Do not use pointers, use __u64 instead for 32 bit / 64 bit
  30 *     user/kernel compatibility
  31 *  2) Keep fields aligned to their size
  32 *  3) Because of how drm_ioctl() works, we can add new fields at
  33 *     the end of an ioctl if some care is taken: drm_ioctl() will
  34 *     zero out the new fields at the tail of the ioctl, so a zero
  35 *     value should have a backwards compatible meaning.  And for
  36 *     output params, userspace won't see the newly added output
  37 *     fields.. so that has to be somehow ok.
  38 */
  39
  40/* timeouts are specified in clock-monotonic absolute times (to simplify
  41 * restarting interrupted ioctls).  The following struct is logically the
  42 * same as 'struct timespec' but 32/64b ABI safe.
  43 */
  44struct drm_etnaviv_timespec {
  45        __s64 tv_sec;          /* seconds */
  46        __s64 tv_nsec;         /* nanoseconds */
  47};
  48
  49#define ETNAVIV_PARAM_GPU_MODEL                     0x01
  50#define ETNAVIV_PARAM_GPU_REVISION                  0x02
  51#define ETNAVIV_PARAM_GPU_FEATURES_0                0x03
  52#define ETNAVIV_PARAM_GPU_FEATURES_1                0x04
  53#define ETNAVIV_PARAM_GPU_FEATURES_2                0x05
  54#define ETNAVIV_PARAM_GPU_FEATURES_3                0x06
  55#define ETNAVIV_PARAM_GPU_FEATURES_4                0x07
  56#define ETNAVIV_PARAM_GPU_FEATURES_5                0x08
  57#define ETNAVIV_PARAM_GPU_FEATURES_6                0x09
  58#define ETNAVIV_PARAM_GPU_FEATURES_7                0x0a
  59#define ETNAVIV_PARAM_GPU_FEATURES_8                0x0b
  60#define ETNAVIV_PARAM_GPU_FEATURES_9                0x0c
  61#define ETNAVIV_PARAM_GPU_FEATURES_10               0x0d
  62#define ETNAVIV_PARAM_GPU_FEATURES_11               0x0e
  63#define ETNAVIV_PARAM_GPU_FEATURES_12               0x0f
  64
  65#define ETNAVIV_PARAM_GPU_STREAM_COUNT              0x10
  66#define ETNAVIV_PARAM_GPU_REGISTER_MAX              0x11
  67#define ETNAVIV_PARAM_GPU_THREAD_COUNT              0x12
  68#define ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE         0x13
  69#define ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT         0x14
  70#define ETNAVIV_PARAM_GPU_PIXEL_PIPES               0x15
  71#define ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE 0x16
  72#define ETNAVIV_PARAM_GPU_BUFFER_SIZE               0x17
  73#define ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT         0x18
  74#define ETNAVIV_PARAM_GPU_NUM_CONSTANTS             0x19
  75#define ETNAVIV_PARAM_GPU_NUM_VARYINGS              0x1a
  76#define ETNAVIV_PARAM_SOFTPIN_START_ADDR            0x1b
  77
  78#define ETNA_MAX_PIPES 4
  79
  80struct drm_etnaviv_param {
  81        __u32 pipe;           /* in */
  82        __u32 param;          /* in, ETNAVIV_PARAM_x */
  83        __u64 value;          /* out (get_param) or in (set_param) */
  84};
  85
  86/*
  87 * GEM buffers:
  88 */
  89
  90#define ETNA_BO_CACHE_MASK   0x000f0000
  91/* cache modes */
  92#define ETNA_BO_CACHED       0x00010000
  93#define ETNA_BO_WC           0x00020000
  94#define ETNA_BO_UNCACHED     0x00040000
  95/* map flags */
  96#define ETNA_BO_FORCE_MMU    0x00100000
  97
  98struct drm_etnaviv_gem_new {
  99        __u64 size;           /* in */
 100        __u32 flags;          /* in, mask of ETNA_BO_x */
 101        __u32 handle;         /* out */
 102};
 103
 104struct drm_etnaviv_gem_info {
 105        __u32 handle;         /* in */
 106        __u32 pad;
 107        __u64 offset;         /* out, offset to pass to mmap() */
 108};
 109
 110#define ETNA_PREP_READ        0x01
 111#define ETNA_PREP_WRITE       0x02
 112#define ETNA_PREP_NOSYNC      0x04
 113
 114struct drm_etnaviv_gem_cpu_prep {
 115        __u32 handle;         /* in */
 116        __u32 op;             /* in, mask of ETNA_PREP_x */
 117        struct drm_etnaviv_timespec timeout;   /* in */
 118};
 119
 120struct drm_etnaviv_gem_cpu_fini {
 121        __u32 handle;         /* in */
 122        __u32 flags;          /* in, placeholder for now, no defined values */
 123};
 124
 125/*
 126 * Cmdstream Submission:
 127 */
 128
 129/* The value written into the cmdstream is logically:
 130 * relocbuf->gpuaddr + reloc_offset
 131 *
 132 * NOTE that reloc's must be sorted by order of increasing submit_offset,
 133 * otherwise EINVAL.
 134 */
 135struct drm_etnaviv_gem_submit_reloc {
 136        __u32 submit_offset;  /* in, offset from submit_bo */
 137        __u32 reloc_idx;      /* in, index of reloc_bo buffer */
 138        __u64 reloc_offset;   /* in, offset from start of reloc_bo */
 139        __u32 flags;          /* in, placeholder for now, no defined values */
 140};
 141
 142/* Each buffer referenced elsewhere in the cmdstream submit (ie. the
 143 * cmdstream buffer(s) themselves or reloc entries) has one (and only
 144 * one) entry in the submit->bos[] table.
 145 *
 146 * As a optimization, the current buffer (gpu virtual address) can be
 147 * passed back through the 'presumed' field.  If on a subsequent reloc,
 148 * userspace passes back a 'presumed' address that is still valid,
 149 * then patching the cmdstream for this entry is skipped.  This can
 150 * avoid kernel needing to map/access the cmdstream bo in the common
 151 * case.
 152 * If the submit is a softpin submit (ETNA_SUBMIT_SOFTPIN) the 'presumed'
 153 * field is interpreted as the fixed location to map the bo into the gpu
 154 * virtual address space. If the kernel is unable to map the buffer at
 155 * this location the submit will fail. This means userspace is responsible
 156 * for the whole gpu virtual address management.
 157 */
 158#define ETNA_SUBMIT_BO_READ             0x0001
 159#define ETNA_SUBMIT_BO_WRITE            0x0002
 160struct drm_etnaviv_gem_submit_bo {
 161        __u32 flags;          /* in, mask of ETNA_SUBMIT_BO_x */
 162        __u32 handle;         /* in, GEM handle */
 163        __u64 presumed;       /* in/out, presumed buffer address */
 164};
 165
 166/* performance monitor request (pmr) */
 167#define ETNA_PM_PROCESS_PRE             0x0001
 168#define ETNA_PM_PROCESS_POST            0x0002
 169struct drm_etnaviv_gem_submit_pmr {
 170        __u32 flags;          /* in, when to process request (ETNA_PM_PROCESS_x) */
 171        __u8  domain;         /* in, pm domain */
 172        __u8  pad;
 173        __u16 signal;         /* in, pm signal */
 174        __u32 sequence;       /* in, sequence number */
 175        __u32 read_offset;    /* in, offset from read_bo */
 176        __u32 read_idx;       /* in, index of read_bo buffer */
 177};
 178
 179/* Each cmdstream submit consists of a table of buffers involved, and
 180 * one or more cmdstream buffers.  This allows for conditional execution
 181 * (context-restore), and IB buffers needed for per tile/bin draw cmds.
 182 */
 183#define ETNA_SUBMIT_NO_IMPLICIT         0x0001
 184#define ETNA_SUBMIT_FENCE_FD_IN         0x0002
 185#define ETNA_SUBMIT_FENCE_FD_OUT        0x0004
 186#define ETNA_SUBMIT_SOFTPIN             0x0008
 187#define ETNA_SUBMIT_FLAGS               (ETNA_SUBMIT_NO_IMPLICIT | \
 188                                         ETNA_SUBMIT_FENCE_FD_IN | \
 189                                         ETNA_SUBMIT_FENCE_FD_OUT| \
 190                                         ETNA_SUBMIT_SOFTPIN)
 191#define ETNA_PIPE_3D      0x00
 192#define ETNA_PIPE_2D      0x01
 193#define ETNA_PIPE_VG      0x02
 194struct drm_etnaviv_gem_submit {
 195        __u32 fence;          /* out */
 196        __u32 pipe;           /* in */
 197        __u32 exec_state;     /* in, initial execution state (ETNA_PIPE_x) */
 198        __u32 nr_bos;         /* in, number of submit_bo's */
 199        __u32 nr_relocs;      /* in, number of submit_reloc's */
 200        __u32 stream_size;    /* in, cmdstream size */
 201        __u64 bos;            /* in, ptr to array of submit_bo's */
 202        __u64 relocs;         /* in, ptr to array of submit_reloc's */
 203        __u64 stream;         /* in, ptr to cmdstream */
 204        __u32 flags;          /* in, mask of ETNA_SUBMIT_x */
 205        __s32 fence_fd;       /* in/out, fence fd (see ETNA_SUBMIT_FENCE_FD_x) */
 206        __u64 pmrs;           /* in, ptr to array of submit_pmr's */
 207        __u32 nr_pmrs;        /* in, number of submit_pmr's */
 208        __u32 pad;
 209};
 210
 211/* The normal way to synchronize with the GPU is just to CPU_PREP on
 212 * a buffer if you need to access it from the CPU (other cmdstream
 213 * submission from same or other contexts, PAGE_FLIP ioctl, etc, all
 214 * handle the required synchronization under the hood).  This ioctl
 215 * mainly just exists as a way to implement the gallium pipe_fence
 216 * APIs without requiring a dummy bo to synchronize on.
 217 */
 218#define ETNA_WAIT_NONBLOCK      0x01
 219struct drm_etnaviv_wait_fence {
 220        __u32 pipe;           /* in */
 221        __u32 fence;          /* in */
 222        __u32 flags;          /* in, mask of ETNA_WAIT_x */
 223        __u32 pad;
 224        struct drm_etnaviv_timespec timeout;   /* in */
 225};
 226
 227#define ETNA_USERPTR_READ       0x01
 228#define ETNA_USERPTR_WRITE      0x02
 229struct drm_etnaviv_gem_userptr {
 230        __u64 user_ptr; /* in, page aligned user pointer */
 231        __u64 user_size;        /* in, page aligned user size */
 232        __u32 flags;            /* in, flags */
 233        __u32 handle;   /* out, non-zero handle */
 234};
 235
 236struct drm_etnaviv_gem_wait {
 237        __u32 pipe;                             /* in */
 238        __u32 handle;                           /* in, bo to be waited for */
 239        __u32 flags;                            /* in, mask of ETNA_WAIT_x  */
 240        __u32 pad;
 241        struct drm_etnaviv_timespec timeout;    /* in */
 242};
 243
 244/*
 245 * Performance Monitor (PM):
 246 */
 247
 248struct drm_etnaviv_pm_domain {
 249        __u32 pipe;       /* in */
 250        __u8  iter;       /* in/out, select pm domain at index iter */
 251        __u8  id;         /* out, id of domain */
 252        __u16 nr_signals; /* out, how many signals does this domain provide */
 253        char  name[64];   /* out, name of domain */
 254};
 255
 256struct drm_etnaviv_pm_signal {
 257        __u32 pipe;       /* in */
 258        __u8  domain;     /* in, pm domain index */
 259        __u8  pad;
 260        __u16 iter;       /* in/out, select pm source at index iter */
 261        __u16 id;         /* out, id of signal */
 262        char  name[64];   /* out, name of domain */
 263};
 264
 265#define DRM_ETNAVIV_GET_PARAM          0x00
 266/* placeholder:
 267#define DRM_ETNAVIV_SET_PARAM          0x01
 268 */
 269#define DRM_ETNAVIV_GEM_NEW            0x02
 270#define DRM_ETNAVIV_GEM_INFO           0x03
 271#define DRM_ETNAVIV_GEM_CPU_PREP       0x04
 272#define DRM_ETNAVIV_GEM_CPU_FINI       0x05
 273#define DRM_ETNAVIV_GEM_SUBMIT         0x06
 274#define DRM_ETNAVIV_WAIT_FENCE         0x07
 275#define DRM_ETNAVIV_GEM_USERPTR        0x08
 276#define DRM_ETNAVIV_GEM_WAIT           0x09
 277#define DRM_ETNAVIV_PM_QUERY_DOM       0x0a
 278#define DRM_ETNAVIV_PM_QUERY_SIG       0x0b
 279#define DRM_ETNAVIV_NUM_IOCTLS         0x0c
 280
 281#define DRM_IOCTL_ETNAVIV_GET_PARAM    DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GET_PARAM, struct drm_etnaviv_param)
 282#define DRM_IOCTL_ETNAVIV_GEM_NEW      DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_NEW, struct drm_etnaviv_gem_new)
 283#define DRM_IOCTL_ETNAVIV_GEM_INFO     DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_INFO, struct drm_etnaviv_gem_info)
 284#define DRM_IOCTL_ETNAVIV_GEM_CPU_PREP DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_PREP, struct drm_etnaviv_gem_cpu_prep)
 285#define DRM_IOCTL_ETNAVIV_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_FINI, struct drm_etnaviv_gem_cpu_fini)
 286#define DRM_IOCTL_ETNAVIV_GEM_SUBMIT   DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_SUBMIT, struct drm_etnaviv_gem_submit)
 287#define DRM_IOCTL_ETNAVIV_WAIT_FENCE   DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_WAIT_FENCE, struct drm_etnaviv_wait_fence)
 288#define DRM_IOCTL_ETNAVIV_GEM_USERPTR  DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_USERPTR, struct drm_etnaviv_gem_userptr)
 289#define DRM_IOCTL_ETNAVIV_GEM_WAIT     DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_WAIT, struct drm_etnaviv_gem_wait)
 290#define DRM_IOCTL_ETNAVIV_PM_QUERY_DOM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_DOM, struct drm_etnaviv_pm_domain)
 291#define DRM_IOCTL_ETNAVIV_PM_QUERY_SIG DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_SIG, struct drm_etnaviv_pm_signal)
 292
 293#if defined(__cplusplus)
 294}
 295#endif
 296
 297#endif /* __ETNAVIV_DRM_H__ */
 298