/* 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 … #define DRM_PANFROST_WAIT_BO … #define DRM_PANFROST_CREATE_BO … #define DRM_PANFROST_MMAP_BO … #define DRM_PANFROST_GET_PARAM … #define DRM_PANFROST_GET_BO_OFFSET … #define DRM_PANFROST_PERFCNT_ENABLE … #define DRM_PANFROST_PERFCNT_DUMP … #define DRM_PANFROST_MADVISE … #define DRM_IOCTL_PANFROST_SUBMIT … #define DRM_IOCTL_PANFROST_WAIT_BO … #define DRM_IOCTL_PANFROST_CREATE_BO … #define DRM_IOCTL_PANFROST_MMAP_BO … #define DRM_IOCTL_PANFROST_GET_PARAM … #define DRM_IOCTL_PANFROST_GET_BO_OFFSET … #define DRM_IOCTL_PANFROST_MADVISE … /* * 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 … #define DRM_IOCTL_PANFROST_PERFCNT_DUMP … #define PANFROST_JD_REQ_FS … /** * struct drm_panfrost_submit - ioctl argument for submitting commands to the 3D * engine. * * This asks the kernel to have the GPU execute a render command list. */ struct drm_panfrost_submit { … }; /** * 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 { … }; /* Valid flags to pass to drm_panfrost_create_bo */ #define PANFROST_BO_NOEXEC … #define PANFROST_BO_HEAP … /** * 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 { … }; /** * 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 { … }; enum drm_panfrost_param { … }; struct drm_panfrost_get_param { … }; /** * 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 { … }; struct drm_panfrost_perfcnt_enable { … }; struct drm_panfrost_perfcnt_dump { … }; /* 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 … #define PANFROST_MADV_DONTNEED … struct drm_panfrost_madvise { … }; /* Definitions for coredump decoding in user space */ #define PANFROSTDUMP_MAJOR … #define PANFROSTDUMP_MINOR … #define PANFROSTDUMP_MAGIC … #define PANFROSTDUMP_BUF_REG … #define PANFROSTDUMP_BUF_BOMAP … #define PANFROSTDUMP_BUF_BO … #define PANFROSTDUMP_BUF_TRAILER … /* * 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 { … }; /* Registers object, an array of these */ struct panfrost_dump_registers { … }; #if defined(__cplusplus) } #endif #endif /* _PANFROST_DRM_H_ */
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