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