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etnaviv_drm.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2015 Etnaviv Project * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __ETNAVIV_DRM_H__ #define __ETNAVIV_DRM_H__ #include "drm.h" #if defined(__cplusplus) extern "C" { #endif /* Please note that modifications to all structs defined here are * subject to backwards-compatibility constraints: * 1) Do not use pointers, use __u64 instead for 32 bit / 64 bit * user/kernel compatibility * 2) Keep fields aligned to their size * 3) Because of how drm_ioctl() works, we can add new fields at * the end of an ioctl if some care is taken: drm_ioctl() will * zero out the new fields at the tail of the ioctl, so a zero * value should have a backwards compatible meaning. And for * output params, userspace won't see the newly added output * fields.. so that has to be somehow ok. */ /* timeouts are specified in clock-monotonic absolute times (to simplify * restarting interrupted ioctls). The following struct is logically the * same as 'struct timespec' but 32/64b ABI safe. */ struct drm_etnaviv_timespec { __s64 tv_sec; /* seconds */ __s64 tv_nsec; /* nanoseconds */ }; #define ETNAVIV_PARAM_GPU_MODEL 0x01 #define ETNAVIV_PARAM_GPU_REVISION 0x02 #define ETNAVIV_PARAM_GPU_FEATURES_0 0x03 #define ETNAVIV_PARAM_GPU_FEATURES_1 0x04 #define ETNAVIV_PARAM_GPU_FEATURES_2 0x05 #define ETNAVIV_PARAM_GPU_FEATURES_3 0x06 #define ETNAVIV_PARAM_GPU_FEATURES_4 0x07 #define ETNAVIV_PARAM_GPU_FEATURES_5 0x08 #define ETNAVIV_PARAM_GPU_FEATURES_6 0x09 #define ETNAVIV_PARAM_GPU_FEATURES_7 0x0a #define ETNAVIV_PARAM_GPU_FEATURES_8 0x0b #define ETNAVIV_PARAM_GPU_FEATURES_9 0x0c #define ETNAVIV_PARAM_GPU_FEATURES_10 0x0d #define ETNAVIV_PARAM_GPU_FEATURES_11 0x0e #define ETNAVIV_PARAM_GPU_FEATURES_12 0x0f #define ETNAVIV_PARAM_GPU_STREAM_COUNT 0x10 #define ETNAVIV_PARAM_GPU_REGISTER_MAX 0x11 #define ETNAVIV_PARAM_GPU_THREAD_COUNT 0x12 #define ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE 0x13 #define ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT 0x14 #define ETNAVIV_PARAM_GPU_PIXEL_PIPES 0x15 #define ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE 0x16 #define ETNAVIV_PARAM_GPU_BUFFER_SIZE 0x17 #define ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT 0x18 #define ETNAVIV_PARAM_GPU_NUM_CONSTANTS 0x19 #define ETNAVIV_PARAM_GPU_NUM_VARYINGS 0x1a #define ETNAVIV_PARAM_SOFTPIN_START_ADDR 0x1b #define ETNAVIV_PARAM_GPU_PRODUCT_ID 0x1c #define ETNAVIV_PARAM_GPU_CUSTOMER_ID 0x1d #define ETNAVIV_PARAM_GPU_ECO_ID 0x1e #define ETNA_MAX_PIPES 4 struct drm_etnaviv_param { __u32 pipe; /* in */ __u32 param; /* in, ETNAVIV_PARAM_x */ __u64 value; /* out (get_param) or in (set_param) */ }; /* * GEM buffers: */ #define ETNA_BO_CACHE_MASK 0x000f0000 /* cache modes */ #define ETNA_BO_CACHED 0x00010000 #define ETNA_BO_WC 0x00020000 #define ETNA_BO_UNCACHED 0x00040000 /* map flags */ #define ETNA_BO_FORCE_MMU 0x00100000 struct drm_etnaviv_gem_new { __u64 size; /* in */ __u32 flags; /* in, mask of ETNA_BO_x */ __u32 handle; /* out */ }; struct drm_etnaviv_gem_info { __u32 handle; /* in */ __u32 pad; __u64 offset; /* out, offset to pass to mmap() */ }; #define ETNA_PREP_READ 0x01 #define ETNA_PREP_WRITE 0x02 #define ETNA_PREP_NOSYNC 0x04 struct drm_etnaviv_gem_cpu_prep { __u32 handle; /* in */ __u32 op; /* in, mask of ETNA_PREP_x */ struct drm_etnaviv_timespec timeout; /* in */ }; struct drm_etnaviv_gem_cpu_fini { __u32 handle; /* in */ __u32 flags; /* in, placeholder for now, no defined values */ }; /* * Cmdstream Submission: */ /* The value written into the cmdstream is logically: * relocbuf->gpuaddr + reloc_offset * * NOTE that reloc's must be sorted by order of increasing submit_offset, * otherwise EINVAL. */ struct drm_etnaviv_gem_submit_reloc { __u32 submit_offset; /* in, offset from submit_bo */ __u32 reloc_idx; /* in, index of reloc_bo buffer */ __u64 reloc_offset; /* in, offset from start of reloc_bo */ __u32 flags; /* in, placeholder for now, no defined values */ }; /* Each buffer referenced elsewhere in the cmdstream submit (ie. the * cmdstream buffer(s) themselves or reloc entries) has one (and only * one) entry in the submit->bos[] table. * * As a optimization, the current buffer (gpu virtual address) can be * passed back through the 'presumed' field. If on a subsequent reloc, * userspace passes back a 'presumed' address that is still valid, * then patching the cmdstream for this entry is skipped. This can * avoid kernel needing to map/access the cmdstream bo in the common * case. * If the submit is a softpin submit (ETNA_SUBMIT_SOFTPIN) the 'presumed' * field is interpreted as the fixed location to map the bo into the gpu * virtual address space. If the kernel is unable to map the buffer at * this location the submit will fail. This means userspace is responsible * for the whole gpu virtual address management. */ #define ETNA_SUBMIT_BO_READ 0x0001 #define ETNA_SUBMIT_BO_WRITE 0x0002 struct drm_etnaviv_gem_submit_bo { __u32 flags; /* in, mask of ETNA_SUBMIT_BO_x */ __u32 handle; /* in, GEM handle */ __u64 presumed; /* in/out, presumed buffer address */ }; /* performance monitor request (pmr) */ #define ETNA_PM_PROCESS_PRE 0x0001 #define ETNA_PM_PROCESS_POST 0x0002 struct drm_etnaviv_gem_submit_pmr { __u32 flags; /* in, when to process request (ETNA_PM_PROCESS_x) */ __u8 domain; /* in, pm domain */ __u8 pad; __u16 signal; /* in, pm signal */ __u32 sequence; /* in, sequence number */ __u32 read_offset; /* in, offset from read_bo */ __u32 read_idx; /* in, index of read_bo buffer */ }; /* Each cmdstream submit consists of a table of buffers involved, and * one or more cmdstream buffers. This allows for conditional execution * (context-restore), and IB buffers needed for per tile/bin draw cmds. */ #define ETNA_SUBMIT_NO_IMPLICIT 0x0001 #define ETNA_SUBMIT_FENCE_FD_IN 0x0002 #define ETNA_SUBMIT_FENCE_FD_OUT 0x0004 #define ETNA_SUBMIT_SOFTPIN 0x0008 #define ETNA_SUBMIT_FLAGS (ETNA_SUBMIT_NO_IMPLICIT | \ ETNA_SUBMIT_FENCE_FD_IN | \ ETNA_SUBMIT_FENCE_FD_OUT| \ ETNA_SUBMIT_SOFTPIN) #define ETNA_PIPE_3D 0x00 #define ETNA_PIPE_2D 0x01 #define ETNA_PIPE_VG 0x02 struct drm_etnaviv_gem_submit { __u32 fence; /* out */ __u32 pipe; /* in */ __u32 exec_state; /* in, initial execution state (ETNA_PIPE_x) */ __u32 nr_bos; /* in, number of submit_bo's */ __u32 nr_relocs; /* in, number of submit_reloc's */ __u32 stream_size; /* in, cmdstream size */ __u64 bos; /* in, ptr to array of submit_bo's */ __u64 relocs; /* in, ptr to array of submit_reloc's */ __u64 stream; /* in, ptr to cmdstream */ __u32 flags; /* in, mask of ETNA_SUBMIT_x */ __s32 fence_fd; /* in/out, fence fd (see ETNA_SUBMIT_FENCE_FD_x) */ __u64 pmrs; /* in, ptr to array of submit_pmr's */ __u32 nr_pmrs; /* in, number of submit_pmr's */ __u32 pad; }; /* The normal way to synchronize with the GPU is just to CPU_PREP on * a buffer if you need to access it from the CPU (other cmdstream * submission from same or other contexts, PAGE_FLIP ioctl, etc, all * handle the required synchronization under the hood). This ioctl * mainly just exists as a way to implement the gallium pipe_fence * APIs without requiring a dummy bo to synchronize on. */ #define ETNA_WAIT_NONBLOCK 0x01 struct drm_etnaviv_wait_fence { __u32 pipe; /* in */ __u32 fence; /* in */ __u32 flags; /* in, mask of ETNA_WAIT_x */ __u32 pad; struct drm_etnaviv_timespec timeout; /* in */ }; #define ETNA_USERPTR_READ 0x01 #define ETNA_USERPTR_WRITE 0x02 struct drm_etnaviv_gem_userptr { __u64 user_ptr; /* in, page aligned user pointer */ __u64 user_size; /* in, page aligned user size */ __u32 flags; /* in, flags */ __u32 handle; /* out, non-zero handle */ }; struct drm_etnaviv_gem_wait { __u32 pipe; /* in */ __u32 handle; /* in, bo to be waited for */ __u32 flags; /* in, mask of ETNA_WAIT_x */ __u32 pad; struct drm_etnaviv_timespec timeout; /* in */ }; /* * Performance Monitor (PM): */ struct drm_etnaviv_pm_domain { __u32 pipe; /* in */ __u8 iter; /* in/out, select pm domain at index iter */ __u8 id; /* out, id of domain */ __u16 nr_signals; /* out, how many signals does this domain provide */ char name[64]; /* out, name of domain */ }; struct drm_etnaviv_pm_signal { __u32 pipe; /* in */ __u8 domain; /* in, pm domain index */ __u8 pad; __u16 iter; /* in/out, select pm source at index iter */ __u16 id; /* out, id of signal */ char name[64]; /* out, name of domain */ }; #define DRM_ETNAVIV_GET_PARAM 0x00 /* placeholder: #define DRM_ETNAVIV_SET_PARAM 0x01 */ #define DRM_ETNAVIV_GEM_NEW 0x02 #define DRM_ETNAVIV_GEM_INFO 0x03 #define DRM_ETNAVIV_GEM_CPU_PREP 0x04 #define DRM_ETNAVIV_GEM_CPU_FINI 0x05 #define DRM_ETNAVIV_GEM_SUBMIT 0x06 #define DRM_ETNAVIV_WAIT_FENCE 0x07 #define DRM_ETNAVIV_GEM_USERPTR 0x08 #define DRM_ETNAVIV_GEM_WAIT 0x09 #define DRM_ETNAVIV_PM_QUERY_DOM 0x0a #define DRM_ETNAVIV_PM_QUERY_SIG 0x0b #define DRM_ETNAVIV_NUM_IOCTLS 0x0c #define DRM_IOCTL_ETNAVIV_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GET_PARAM, struct drm_etnaviv_param) #define DRM_IOCTL_ETNAVIV_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_NEW, struct drm_etnaviv_gem_new) #define DRM_IOCTL_ETNAVIV_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_INFO, struct drm_etnaviv_gem_info) #define DRM_IOCTL_ETNAVIV_GEM_CPU_PREP DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_PREP, struct drm_etnaviv_gem_cpu_prep) #define DRM_IOCTL_ETNAVIV_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_FINI, struct drm_etnaviv_gem_cpu_fini) #define DRM_IOCTL_ETNAVIV_GEM_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_SUBMIT, struct drm_etnaviv_gem_submit) #define DRM_IOCTL_ETNAVIV_WAIT_FENCE DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_WAIT_FENCE, struct drm_etnaviv_wait_fence) #define DRM_IOCTL_ETNAVIV_GEM_USERPTR DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_USERPTR, struct drm_etnaviv_gem_userptr) #define DRM_IOCTL_ETNAVIV_GEM_WAIT DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_WAIT, struct drm_etnaviv_gem_wait) #define DRM_IOCTL_ETNAVIV_PM_QUERY_DOM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_DOM, struct drm_etnaviv_pm_domain) #define DRM_IOCTL_ETNAVIV_PM_QUERY_SIG DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_SIG, struct drm_etnaviv_pm_signal) #if defined(__cplusplus) } #endif #endif /* __ETNAVIV_DRM_H__ */