/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2014 - 2018 Broadcom
* Copyright © 2019 Collabora ltd .
*/
#ifndef _PANFROST_DRM_H_
#define _PANFROST_DRM_H_
#include "drm.h"
#if defined (__cplusplus)
extern "C" {
#endif
#define DRM_PANFROST_SUBMIT 0 x00
#define DRM_PANFROST_WAIT_BO 0 x01
#define DRM_PANFROST_CREATE_BO 0 x02
#define DRM_PANFROST_MMAP_BO 0 x03
#define DRM_PANFROST_GET_PARAM 0 x04
#define DRM_PANFROST_GET_BO_OFFSET 0 x05
#define DRM_PANFROST_PERFCNT_ENABLE 0 x06
#define DRM_PANFROST_PERFCNT_DUMP 0 x07
#define DRM_PANFROST_MADVISE 0 x08
#define DRM_PANFROST_SET_LABEL_BO 0 x09
#define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit)
#define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo)
#define DRM_IOCTL_PANFROST_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_CREATE_BO, struct drm_panfrost_create_bo)
#define DRM_IOCTL_PANFROST_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MMAP_BO, struct drm_panfrost_mmap_bo)
#define DRM_IOCTL_PANFROST_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_PARAM, struct drm_panfrost_get_param)
#define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset)
#define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise)
#define DRM_IOCTL_PANFROST_SET_LABEL_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_SET_LABEL_BO, struct drm_panfrost_set_label_bo)
/*
* Unstable ioctl ( s ) : only exposed when the unsafe unstable_ioctls module
* param is set to true .
* All these ioctl ( s ) are subject to deprecation , so please don ' t rely on
* them for anything but debugging purpose .
*/
#define DRM_IOCTL_PANFROST_PERFCNT_ENABLE DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_ENABLE, struct drm_panfrost_perfcnt_enable)
#define DRM_IOCTL_PANFROST_PERFCNT_DUMP DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_DUMP, struct drm_panfrost_perfcnt_dump)
#define PANFROST_JD_REQ_FS (1 << 0 )
#define PANFROST_JD_REQ_CYCLE_COUNT (1 << 1 )
/**
* struct drm_panfrost_submit - ioctl argument for submitting commands to the 3 D
* engine .
*
* This asks the kernel to have the GPU execute a render command list .
*/
struct drm_panfrost_submit {
/** Address to GPU mapping of job descriptor */
__u64 jc;
/** An optional array of sync objects to wait on before starting this job. */
__u64 in_syncs;
/** Number of sync objects to wait on before starting this job. */
__u32 in_sync_count;
/** An optional sync object to place the completion fence in. */
__u32 out_sync;
/** Pointer to a u32 array of the BOs that are referenced by the job. */
__u64 bo_handles;
/** Number of BO handles passed in (size is that times 4). */
__u32 bo_handle_count;
/** A combination of PANFROST_JD_REQ_* */
__u32 requirements;
};
/**
* struct drm_panfrost_wait_bo - ioctl argument for waiting for
* completion of the last DRM_PANFROST_SUBMIT on a BO .
*
* This is useful for cases where multiple processes might be
* rendering to a BO and you want to wait for all rendering to be
* completed .
*/
struct drm_panfrost_wait_bo {
__u32 handle;
__u32 pad;
__s64 timeout_ns; /* absolute */
};
/* Valid flags to pass to drm_panfrost_create_bo */
#define PANFROST_BO_NOEXEC 1
#define PANFROST_BO_HEAP 2
/**
* struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs .
*
* The flags argument is a bit mask of PANFROST_BO_ * flags .
*/
struct drm_panfrost_create_bo {
__u32 size;
__u32 flags;
/** Returned GEM handle for the BO. */
__u32 handle;
/* Pad, must be zero-filled. */
__u32 pad;
/**
* Returned offset for the BO in the GPU address space . This offset
* is private to the DRM fd and is valid for the lifetime of the GEM
* handle .
*
* This offset value will always be nonzero , since various HW
* units treat 0 specially .
*/
__u64 offset;
};
/**
* struct drm_panfrost_mmap_bo - ioctl argument for mapping Panfrost BOs .
*
* This doesn ' t actually perform an mmap . Instead , it returns the
* offset you need to use in an mmap on the DRM device node . This
* means that tools like valgrind end up knowing about the mapped
* memory .
*
* There are currently no values for the flags argument , but it may be
* used in a future extension .
*/
struct drm_panfrost_mmap_bo {
/** Handle for the object being mapped. */
__u32 handle;
__u32 flags;
/** offset into the drm node to use for subsequent mmap call. */
__u64 offset;
};
enum drm_panfrost_param {
DRM_PANFROST_PARAM_GPU_PROD_ID,
DRM_PANFROST_PARAM_GPU_REVISION,
DRM_PANFROST_PARAM_SHADER_PRESENT,
DRM_PANFROST_PARAM_TILER_PRESENT,
DRM_PANFROST_PARAM_L2_PRESENT,
DRM_PANFROST_PARAM_STACK_PRESENT,
DRM_PANFROST_PARAM_AS_PRESENT,
DRM_PANFROST_PARAM_JS_PRESENT,
DRM_PANFROST_PARAM_L2_FEATURES,
DRM_PANFROST_PARAM_CORE_FEATURES,
DRM_PANFROST_PARAM_TILER_FEATURES,
DRM_PANFROST_PARAM_MEM_FEATURES,
DRM_PANFROST_PARAM_MMU_FEATURES,
DRM_PANFROST_PARAM_THREAD_FEATURES,
DRM_PANFROST_PARAM_MAX_THREADS,
DRM_PANFROST_PARAM_THREAD_MAX_WORKGROUP_SZ,
DRM_PANFROST_PARAM_THREAD_MAX_BARRIER_SZ,
DRM_PANFROST_PARAM_COHERENCY_FEATURES,
DRM_PANFROST_PARAM_TEXTURE_FEATURES0,
DRM_PANFROST_PARAM_TEXTURE_FEATURES1,
DRM_PANFROST_PARAM_TEXTURE_FEATURES2,
DRM_PANFROST_PARAM_TEXTURE_FEATURES3,
DRM_PANFROST_PARAM_JS_FEATURES0,
DRM_PANFROST_PARAM_JS_FEATURES1,
DRM_PANFROST_PARAM_JS_FEATURES2,
DRM_PANFROST_PARAM_JS_FEATURES3,
DRM_PANFROST_PARAM_JS_FEATURES4,
DRM_PANFROST_PARAM_JS_FEATURES5,
DRM_PANFROST_PARAM_JS_FEATURES6,
DRM_PANFROST_PARAM_JS_FEATURES7,
DRM_PANFROST_PARAM_JS_FEATURES8,
DRM_PANFROST_PARAM_JS_FEATURES9,
DRM_PANFROST_PARAM_JS_FEATURES10,
DRM_PANFROST_PARAM_JS_FEATURES11,
DRM_PANFROST_PARAM_JS_FEATURES12,
DRM_PANFROST_PARAM_JS_FEATURES13,
DRM_PANFROST_PARAM_JS_FEATURES14,
DRM_PANFROST_PARAM_JS_FEATURES15,
DRM_PANFROST_PARAM_NR_CORE_GROUPS,
DRM_PANFROST_PARAM_THREAD_TLS_ALLOC,
DRM_PANFROST_PARAM_AFBC_FEATURES,
DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP,
DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP_FREQUENCY,
};
struct drm_panfrost_get_param {
__u32 param;
__u32 pad;
__u64 value;
};
/**
* Returns the offset for the BO in the GPU address space for this DRM fd .
* This is the same value returned by drm_panfrost_create_bo , if that was called
* from this DRM fd .
*/
struct drm_panfrost_get_bo_offset {
__u32 handle;
__u32 pad;
__u64 offset;
};
struct drm_panfrost_perfcnt_enable {
__u32 enable;
/*
* On bifrost we have 2 sets of counters , this parameter defines the
* one to track .
*/
__u32 counterset;
};
struct drm_panfrost_perfcnt_dump {
__u64 buf_ptr;
};
/* madvise provides a way to tell the kernel in case a buffers contents
* can be discarded under memory pressure , which is useful for userspace
* bo cache where we want to optimistically hold on to buffer allocate
* and potential mmap , but allow the pages to be discarded under memory
* pressure .
*
* Typical usage would involve madvise ( DONTNEED ) when buffer enters BO
* cache , and madvise ( WILLNEED ) if trying to recycle buffer from BO cache .
* In the WILLNEED case , ' retained ' indicates to userspace whether the
* backing pages still exist .
*/
#define PANFROST_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */
#define PANFROST_MADV_DONTNEED 1 /* backing pages not needed */
struct drm_panfrost_madvise {
__u32 handle; /* in, GEM handle */
__u32 madv; /* in, PANFROST_MADV_x */
__u32 retained; /* out, whether backing store still exists */
};
/**
* struct drm_panfrost_set_label_bo - ioctl argument for labelling Panfrost BOs .
*/
struct drm_panfrost_set_label_bo {
/** @handle: Handle of the buffer object to label. */
__u32 handle;
/** @pad: MBZ. */
__u32 pad;
/**
* @ label : User pointer to a NUL - terminated string
*
* Length cannot be greater than 4096 .
* NULL is permitted and means clear the label .
*/
__u64 label;
};
/* Definitions for coredump decoding in user space */
#define PANFROSTDUMP_MAJOR 1
#define PANFROSTDUMP_MINOR 0
#define PANFROSTDUMP_MAGIC 0 x464E4150 /* PANF */
#define PANFROSTDUMP_BUF_REG 0
#define PANFROSTDUMP_BUF_BOMAP (PANFROSTDUMP_BUF_REG + 1 )
#define PANFROSTDUMP_BUF_BO (PANFROSTDUMP_BUF_BOMAP + 1 )
#define PANFROSTDUMP_BUF_TRAILER (PANFROSTDUMP_BUF_BO + 1 )
/*
* This structure is the native endianness of the dumping machine , tools can
* detect the endianness by looking at the value in ' magic ' .
*/
struct panfrost_dump_object_header {
__u32 magic;
__u32 type;
__u32 file_size;
__u32 file_offset;
union {
struct {
__u64 jc;
__u32 gpu_id;
__u32 major;
__u32 minor;
__u64 nbos;
} reghdr;
struct {
__u32 valid;
__u64 iova;
__u32 data[2 ];
} bomap;
/*
* Force same size in case we want to expand the header
* with new fields and also keep it 512 - byte aligned
*/
__u32 sizer[496 ];
};
};
/* Registers object, an array of these */
struct panfrost_dump_registers {
__u32 reg;
__u32 value;
};
#if defined (__cplusplus)
}
#endif
#endif /* _PANFROST_DRM_H_ */
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