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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2014-2018 Broadcom4 * Copyright © 2019 Collabora ltd.5 */6#ifndef _PANFROST_DRM_H_7#define _PANFROST_DRM_H_8 9#include "drm.h"10 11#if defined(__cplusplus)12extern "C" {13#endif14 15#define DRM_PANFROST_SUBMIT 0x0016#define DRM_PANFROST_WAIT_BO 0x0117#define DRM_PANFROST_CREATE_BO 0x0218#define DRM_PANFROST_MMAP_BO 0x0319#define DRM_PANFROST_GET_PARAM 0x0420#define DRM_PANFROST_GET_BO_OFFSET 0x0521#define DRM_PANFROST_PERFCNT_ENABLE 0x0622#define DRM_PANFROST_PERFCNT_DUMP 0x0723#define DRM_PANFROST_MADVISE 0x0824 25#define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit)26#define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo)27#define DRM_IOCTL_PANFROST_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_CREATE_BO, struct drm_panfrost_create_bo)28#define DRM_IOCTL_PANFROST_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MMAP_BO, struct drm_panfrost_mmap_bo)29#define DRM_IOCTL_PANFROST_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_PARAM, struct drm_panfrost_get_param)30#define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset)31#define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise)32 33/*34 * Unstable ioctl(s): only exposed when the unsafe unstable_ioctls module35 * param is set to true.36 * All these ioctl(s) are subject to deprecation, so please don't rely on37 * them for anything but debugging purpose.38 */39#define DRM_IOCTL_PANFROST_PERFCNT_ENABLE DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_ENABLE, struct drm_panfrost_perfcnt_enable)40#define DRM_IOCTL_PANFROST_PERFCNT_DUMP DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_DUMP, struct drm_panfrost_perfcnt_dump)41 42#define PANFROST_JD_REQ_FS (1 << 0)43/**44 * struct drm_panfrost_submit - ioctl argument for submitting commands to the 3D45 * engine.46 *47 * This asks the kernel to have the GPU execute a render command list.48 */49struct drm_panfrost_submit {50 51 /** Address to GPU mapping of job descriptor */52 __u64 jc;53 54 /** An optional array of sync objects to wait on before starting this job. */55 __u64 in_syncs;56 57 /** Number of sync objects to wait on before starting this job. */58 __u32 in_sync_count;59 60 /** An optional sync object to place the completion fence in. */61 __u32 out_sync;62 63 /** Pointer to a u32 array of the BOs that are referenced by the job. */64 __u64 bo_handles;65 66 /** Number of BO handles passed in (size is that times 4). */67 __u32 bo_handle_count;68 69 /** A combination of PANFROST_JD_REQ_* */70 __u32 requirements;71};72 73/**74 * struct drm_panfrost_wait_bo - ioctl argument for waiting for75 * completion of the last DRM_PANFROST_SUBMIT on a BO.76 *77 * This is useful for cases where multiple processes might be78 * rendering to a BO and you want to wait for all rendering to be79 * completed.80 */81struct drm_panfrost_wait_bo {82 __u32 handle;83 __u32 pad;84 __s64 timeout_ns; /* absolute */85};86 87/* Valid flags to pass to drm_panfrost_create_bo */88#define PANFROST_BO_NOEXEC 189#define PANFROST_BO_HEAP 290 91/**92 * struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs.93 *94 * The flags argument is a bit mask of PANFROST_BO_* flags.95 */96struct drm_panfrost_create_bo {97 __u32 size;98 __u32 flags;99 /** Returned GEM handle for the BO. */100 __u32 handle;101 /* Pad, must be zero-filled. */102 __u32 pad;103 /**104 * Returned offset for the BO in the GPU address space. This offset105 * is private to the DRM fd and is valid for the lifetime of the GEM106 * handle.107 *108 * This offset value will always be nonzero, since various HW109 * units treat 0 specially.110 */111 __u64 offset;112};113 114/**115 * struct drm_panfrost_mmap_bo - ioctl argument for mapping Panfrost BOs.116 *117 * This doesn't actually perform an mmap. Instead, it returns the118 * offset you need to use in an mmap on the DRM device node. This119 * means that tools like valgrind end up knowing about the mapped120 * memory.121 *122 * There are currently no values for the flags argument, but it may be123 * used in a future extension.124 */125struct drm_panfrost_mmap_bo {126 /** Handle for the object being mapped. */127 __u32 handle;128 __u32 flags;129 /** offset into the drm node to use for subsequent mmap call. */130 __u64 offset;131};132 133enum drm_panfrost_param {134 DRM_PANFROST_PARAM_GPU_PROD_ID,135 DRM_PANFROST_PARAM_GPU_REVISION,136 DRM_PANFROST_PARAM_SHADER_PRESENT,137 DRM_PANFROST_PARAM_TILER_PRESENT,138 DRM_PANFROST_PARAM_L2_PRESENT,139 DRM_PANFROST_PARAM_STACK_PRESENT,140 DRM_PANFROST_PARAM_AS_PRESENT,141 DRM_PANFROST_PARAM_JS_PRESENT,142 DRM_PANFROST_PARAM_L2_FEATURES,143 DRM_PANFROST_PARAM_CORE_FEATURES,144 DRM_PANFROST_PARAM_TILER_FEATURES,145 DRM_PANFROST_PARAM_MEM_FEATURES,146 DRM_PANFROST_PARAM_MMU_FEATURES,147 DRM_PANFROST_PARAM_THREAD_FEATURES,148 DRM_PANFROST_PARAM_MAX_THREADS,149 DRM_PANFROST_PARAM_THREAD_MAX_WORKGROUP_SZ,150 DRM_PANFROST_PARAM_THREAD_MAX_BARRIER_SZ,151 DRM_PANFROST_PARAM_COHERENCY_FEATURES,152 DRM_PANFROST_PARAM_TEXTURE_FEATURES0,153 DRM_PANFROST_PARAM_TEXTURE_FEATURES1,154 DRM_PANFROST_PARAM_TEXTURE_FEATURES2,155 DRM_PANFROST_PARAM_TEXTURE_FEATURES3,156 DRM_PANFROST_PARAM_JS_FEATURES0,157 DRM_PANFROST_PARAM_JS_FEATURES1,158 DRM_PANFROST_PARAM_JS_FEATURES2,159 DRM_PANFROST_PARAM_JS_FEATURES3,160 DRM_PANFROST_PARAM_JS_FEATURES4,161 DRM_PANFROST_PARAM_JS_FEATURES5,162 DRM_PANFROST_PARAM_JS_FEATURES6,163 DRM_PANFROST_PARAM_JS_FEATURES7,164 DRM_PANFROST_PARAM_JS_FEATURES8,165 DRM_PANFROST_PARAM_JS_FEATURES9,166 DRM_PANFROST_PARAM_JS_FEATURES10,167 DRM_PANFROST_PARAM_JS_FEATURES11,168 DRM_PANFROST_PARAM_JS_FEATURES12,169 DRM_PANFROST_PARAM_JS_FEATURES13,170 DRM_PANFROST_PARAM_JS_FEATURES14,171 DRM_PANFROST_PARAM_JS_FEATURES15,172 DRM_PANFROST_PARAM_NR_CORE_GROUPS,173 DRM_PANFROST_PARAM_THREAD_TLS_ALLOC,174 DRM_PANFROST_PARAM_AFBC_FEATURES,175};176 177struct drm_panfrost_get_param {178 __u32 param;179 __u32 pad;180 __u64 value;181};182 183/**184 * Returns the offset for the BO in the GPU address space for this DRM fd.185 * This is the same value returned by drm_panfrost_create_bo, if that was called186 * from this DRM fd.187 */188struct drm_panfrost_get_bo_offset {189 __u32 handle;190 __u32 pad;191 __u64 offset;192};193 194struct drm_panfrost_perfcnt_enable {195 __u32 enable;196 /*197 * On bifrost we have 2 sets of counters, this parameter defines the198 * one to track.199 */200 __u32 counterset;201};202 203struct drm_panfrost_perfcnt_dump {204 __u64 buf_ptr;205};206 207/* madvise provides a way to tell the kernel in case a buffers contents208 * can be discarded under memory pressure, which is useful for userspace209 * bo cache where we want to optimistically hold on to buffer allocate210 * and potential mmap, but allow the pages to be discarded under memory211 * pressure.212 *213 * Typical usage would involve madvise(DONTNEED) when buffer enters BO214 * cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.215 * In the WILLNEED case, 'retained' indicates to userspace whether the216 * backing pages still exist.217 */218#define PANFROST_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */219#define PANFROST_MADV_DONTNEED 1 /* backing pages not needed */220 221struct drm_panfrost_madvise {222 __u32 handle; /* in, GEM handle */223 __u32 madv; /* in, PANFROST_MADV_x */224 __u32 retained; /* out, whether backing store still exists */225};226 227/* Definitions for coredump decoding in user space */228#define PANFROSTDUMP_MAJOR 1229#define PANFROSTDUMP_MINOR 0230 231#define PANFROSTDUMP_MAGIC 0x464E4150 /* PANF */232 233#define PANFROSTDUMP_BUF_REG 0234#define PANFROSTDUMP_BUF_BOMAP (PANFROSTDUMP_BUF_REG + 1)235#define PANFROSTDUMP_BUF_BO (PANFROSTDUMP_BUF_BOMAP + 1)236#define PANFROSTDUMP_BUF_TRAILER (PANFROSTDUMP_BUF_BO + 1)237 238/*239 * This structure is the native endianness of the dumping machine, tools can240 * detect the endianness by looking at the value in 'magic'.241 */242struct panfrost_dump_object_header {243 __u32 magic;244 __u32 type;245 __u32 file_size;246 __u32 file_offset;247 248 union {249 struct {250 __u64 jc;251 __u32 gpu_id;252 __u32 major;253 __u32 minor;254 __u64 nbos;255 } reghdr;256 257 struct {258 __u32 valid;259 __u64 iova;260 __u32 data[2];261 } bomap;262 263 /*264 * Force same size in case we want to expand the header265 * with new fields and also keep it 512-byte aligned266 */267 268 __u32 sizer[496];269 };270};271 272/* Registers object, an array of these */273struct panfrost_dump_registers {274 __u32 reg;275 __u32 value;276};277 278#if defined(__cplusplus)279}280#endif281 282#endif /* _PANFROST_DRM_H_ */283