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drm
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lima_drm.h
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/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */ /* Copyright 2017-2018 Qiang Yu <yuq825@gmail.com> */ #ifndef __LIMA_DRM_H__ #define __LIMA_DRM_H__ #include "drm.h" #if defined(__cplusplus) extern "C" { #endif enum drm_lima_param_gpu_id { DRM_LIMA_PARAM_GPU_ID_UNKNOWN, DRM_LIMA_PARAM_GPU_ID_MALI400, DRM_LIMA_PARAM_GPU_ID_MALI450, }; enum drm_lima_param { DRM_LIMA_PARAM_GPU_ID, DRM_LIMA_PARAM_NUM_PP, DRM_LIMA_PARAM_GP_VERSION, DRM_LIMA_PARAM_PP_VERSION, }; /** * get various information of the GPU */ struct drm_lima_get_param { __u32 param; /* in, value in enum drm_lima_param */ __u32 pad; /* pad, must be zero */ __u64 value; /* out, parameter value */ }; /* * heap buffer dynamically increase backup memory size when GP task fail * due to lack of heap memory. size field of heap buffer is an up bound of * the backup memory which can be set to a fairly large value. */ #define LIMA_BO_FLAG_HEAP (1 << 0) /** * create a buffer for used by GPU */ struct drm_lima_gem_create { __u32 size; /* in, buffer size */ __u32 flags; /* in, buffer flags */ __u32 handle; /* out, GEM buffer handle */ __u32 pad; /* pad, must be zero */ }; /** * get information of a buffer */ struct drm_lima_gem_info { __u32 handle; /* in, GEM buffer handle */ __u32 va; /* out, virtual address mapped into GPU MMU */ __u64 offset; /* out, used to mmap this buffer to CPU */ }; #define LIMA_SUBMIT_BO_READ 0x01 #define LIMA_SUBMIT_BO_WRITE 0x02 /* buffer information used by one task */ struct drm_lima_gem_submit_bo { __u32 handle; /* in, GEM buffer handle */ __u32 flags; /* in, buffer read/write by GPU */ }; #define LIMA_GP_FRAME_REG_NUM 6 /* frame used to setup GP for each task */ struct drm_lima_gp_frame { __u32 frame[LIMA_GP_FRAME_REG_NUM]; }; #define LIMA_PP_FRAME_REG_NUM 23 #define LIMA_PP_WB_REG_NUM 12 /* frame used to setup mali400 GPU PP for each task */ struct drm_lima_m400_pp_frame { __u32 frame[LIMA_PP_FRAME_REG_NUM]; __u32 num_pp; __u32 wb[3 * LIMA_PP_WB_REG_NUM]; __u32 plbu_array_address[4]; __u32 fragment_stack_address[4]; }; /* frame used to setup mali450 GPU PP for each task */ struct drm_lima_m450_pp_frame { __u32 frame[LIMA_PP_FRAME_REG_NUM]; __u32 num_pp; __u32 wb[3 * LIMA_PP_WB_REG_NUM]; __u32 use_dlbu; __u32 _pad; union { __u32 plbu_array_address[8]; __u32 dlbu_regs[4]; }; __u32 fragment_stack_address[8]; }; #define LIMA_PIPE_GP 0x00 #define LIMA_PIPE_PP 0x01 #define LIMA_SUBMIT_FLAG_EXPLICIT_FENCE (1 << 0) /** * submit a task to GPU * * User can always merge multi sync_file and drm_syncobj * into one drm_syncobj as in_sync[0], but we reserve * in_sync[1] for another task's out_sync to avoid the * export/import/merge pass when explicit sync. */ struct drm_lima_gem_submit { __u32 ctx; /* in, context handle task is submitted to */ __u32 pipe; /* in, which pipe to use, GP/PP */ __u32 nr_bos; /* in, array length of bos field */ __u32 frame_size; /* in, size of frame field */ __u64 bos; /* in, array of drm_lima_gem_submit_bo */ __u64 frame; /* in, GP/PP frame */ __u32 flags; /* in, submit flags */ __u32 out_sync; /* in, drm_syncobj handle used to wait task finish after submission */ __u32 in_sync[2]; /* in, drm_syncobj handle used to wait before start this task */ }; #define LIMA_GEM_WAIT_READ 0x01 #define LIMA_GEM_WAIT_WRITE 0x02 /** * wait pending GPU task finish of a buffer */ struct drm_lima_gem_wait { __u32 handle; /* in, GEM buffer handle */ __u32 op; /* in, CPU want to read/write this buffer */ __s64 timeout_ns; /* in, wait timeout in absulute time */ }; /** * create a context */ struct drm_lima_ctx_create { __u32 id; /* out, context handle */ __u32 _pad; /* pad, must be zero */ }; /** * free a context */ struct drm_lima_ctx_free { __u32 id; /* in, context handle */ __u32 _pad; /* pad, must be zero */ }; #define DRM_LIMA_GET_PARAM 0x00 #define DRM_LIMA_GEM_CREATE 0x01 #define DRM_LIMA_GEM_INFO 0x02 #define DRM_LIMA_GEM_SUBMIT 0x03 #define DRM_LIMA_GEM_WAIT 0x04 #define DRM_LIMA_CTX_CREATE 0x05 #define DRM_LIMA_CTX_FREE 0x06 #define DRM_IOCTL_LIMA_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GET_PARAM, struct drm_lima_get_param) #define DRM_IOCTL_LIMA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GEM_CREATE, struct drm_lima_gem_create) #define DRM_IOCTL_LIMA_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GEM_INFO, struct drm_lima_gem_info) #define DRM_IOCTL_LIMA_GEM_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_GEM_SUBMIT, struct drm_lima_gem_submit) #define DRM_IOCTL_LIMA_GEM_WAIT DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_GEM_WAIT, struct drm_lima_gem_wait) #define DRM_IOCTL_LIMA_CTX_CREATE DRM_IOR(DRM_COMMAND_BASE + DRM_LIMA_CTX_CREATE, struct drm_lima_ctx_create) #define DRM_IOCTL_LIMA_CTX_FREE DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_CTX_FREE, struct drm_lima_ctx_free) #if defined(__cplusplus) } #endif #endif /* __LIMA_DRM_H__ */