| /* 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 0x00 |
| #define DRM_PANFROST_WAIT_BO 0x01 |
| #define DRM_PANFROST_CREATE_BO 0x02 |
| #define DRM_PANFROST_MMAP_BO 0x03 |
| #define DRM_PANFROST_GET_PARAM 0x04 |
| #define DRM_PANFROST_GET_BO_OFFSET 0x05 |
| |
| #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 PANFROST_JD_REQ_FS (1 << 0) |
| /** |
| * 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 { |
| |
| /** 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 */ |
| }; |
| |
| /** |
| * struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs. |
| * |
| * There are currently no values for the flags argument, but it may be |
| * used in a future extension. |
| */ |
| 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, |
| }; |
| |
| 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; |
| }; |
| |
| #if defined(__cplusplus) |
| } |
| #endif |
| |
| #endif /* _PANFROST_DRM_H_ */ |