diff options
Diffstat (limited to 'src/mesa/drivers/verite/verite3dio.h')
| -rw-r--r-- | src/mesa/drivers/verite/verite3dio.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/mesa/drivers/verite/verite3dio.h b/src/mesa/drivers/verite/verite3dio.h new file mode 100644 index 0000000..1337dc3 --- /dev/null +++ b/src/mesa/drivers/verite/verite3dio.h @@ -0,0 +1,107 @@ +/* + * Vendored from src/sys/dev/pci/verite3dio.h + */ + +/* $NetBSD: verite3dio.h,v 1.1 2026/07/15 20:53:22 rkujawa Exp $ */ + +/* + * Copyright (c) 2026 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Radoslaw Kujawa. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +/* + * /dev/verite3d - expierimental 3D interface for veritefb(4) + * + * By design, it is completely independent of wsdisplay(4). It supports + * one exclusive client - opening the device stops the 2D microcode. + * Closing the device stops the 3D microcode and restores the console, + * in the state it was left behind. + * + * The client supplies its own RISC microcode (V3D_INIT) and owns + * the FIFO command stream. The kernel moves bytes (DMA) and tracks VRAM, + * but does NOT interpret the command stream. That is responsibility of + * the microcode (on the hardware side) and the userland process. + */ + +#ifndef VERITE3DIO_H +#define VERITE3DIO_H + +#include <sys/ioccom.h> + +#define V3D_RING_SLOTS 4 +#define V3D_SLOT_SIZE 65536 + +#define V3D_VRAM_MMAP_OFF ((off_t)V3D_RING_SLOTS * V3D_SLOT_SIZE) + +/* Load client microcode into the foreign slot and cold-start it. */ +struct v3d_init { + uint64_t vi_ucode; /* in: user pointer to image */ + uint32_t vi_size; /* in: bytes */ + uint32_t vi_ctx_base; /* out: context save area (VRAM) */ + uint32_t vi_memsize; /* out: total VRAM bytes */ + uint32_t vi_pool_base; /* out: first V3D_ALLOC-managed byte */ +}; +#define V3D_INIT _IOWR('V', 0, struct v3d_init) + +struct v3d_submit { + uint32_t vs_slot; /* 0 to V3D_RING_SLOTS-1 */ + uint32_t vs_len; /* bytes, word multiple */ + uint32_t vs_swap; /* descriptor swap code 0..3 */ +}; +#define V3D_SUBMIT _IOW('V', 1, struct v3d_submit) + +/* + * Fence: send one word (the client microcode's sync command) and + * wait for the response word. In/out: word to send / word received. + */ +#define V3D_SYNC _IOWR('V', 2, uint32_t) + +struct v3d_alloc { + uint32_t va_size; /* in: bytes */ + uint32_t va_align; /* in: byte alignment (0 = 4) */ + uint32_t va_addr; /* out: VRAM byte address */ +}; +#define V3D_ALLOC _IOWR('V', 3, struct v3d_alloc) +#define V3D_FREE _IOW('V', 4, uint32_t) + +struct v3d_mode { + uint32_t vm_depth; /* in: 8 or 16; 0 = query only */ + uint32_t vm_frame_base; /* in: scanout base; 0 = keep */ + uint32_t vm_width; /* out */ + uint32_t vm_height; /* out */ + uint32_t vm_stride; /* out: scanout line bytes */ + uint32_t vm_pe_stride; /* out: PE Stride(3) dst encoding */ +}; +#define V3D_MODE _IOWR('V', 5, struct v3d_mode) + +/* + * vsync-waited FRAMEBASE flip. + */ +#define V3D_FLIP_NOWAIT 0x80000000U +#define V3D_FLIP _IOW('V', 6, uint32_t) + +#endif /* VERITE3DIO_H */ |