17e6fb56fSmrg/* 290b17f1bSmrg * Copyright (C) Thomas Hellstrom (2005) 37e6fb56fSmrg * 47e6fb56fSmrg * Permission is hereby granted, free of charge, to any person obtaining a 57e6fb56fSmrg * copy of this software and associated documentation files (the "Software"), 67e6fb56fSmrg * to deal in the Software without restriction, including without limitation 77e6fb56fSmrg * the rights to use, copy, modify, merge, publish, distribute, sub license, 87e6fb56fSmrg * and/or sell copies of the Software, and to permit persons to whom the 97e6fb56fSmrg * Software is furnished to do so, subject to the following conditions: 107e6fb56fSmrg * 117e6fb56fSmrg * The above copyright notice and this permission notice (including the 127e6fb56fSmrg * next paragraph) shall be included in all copies or substantial portions 137e6fb56fSmrg * of the Software. 147e6fb56fSmrg * 157e6fb56fSmrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 167e6fb56fSmrg * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 177e6fb56fSmrg * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 187e6fb56fSmrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 197e6fb56fSmrg * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 207e6fb56fSmrg * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 217e6fb56fSmrg * DEALINGS IN THE SOFTWARE. 227e6fb56fSmrg */ 237e6fb56fSmrg 247e6fb56fSmrg#ifndef VIA_DMABUFFER_H 257e6fb56fSmrg#define VIA_DMABUFFER_H 267e6fb56fSmrg 277e6fb56fSmrg#include "via_3d_reg.h" 287e6fb56fSmrg 297e6fb56fSmrgtypedef struct _ViaCommandBuffer 307e6fb56fSmrg{ 317e6fb56fSmrg ScrnInfoPtr pScrn; 327e6fb56fSmrg CARD32 *buf; 337e6fb56fSmrg CARD32 waitFlags; 347e6fb56fSmrg unsigned pos; 357e6fb56fSmrg unsigned bufSize; 367e6fb56fSmrg int mode; 377e6fb56fSmrg int header_start; 387e6fb56fSmrg int rindex; 397e6fb56fSmrg Bool has3dState; 407e6fb56fSmrg void (*flushFunc) (struct _ViaCommandBuffer * cb); 417e6fb56fSmrg} ViaCommandBuffer; 427e6fb56fSmrg 437e6fb56fSmrg#define VIA_DMASIZE 16384 447e6fb56fSmrg 457e6fb56fSmrg#define H1_ADDR(val) (((val) >> 2) | 0xF0000000) 467e6fb56fSmrg#define WAITFLAGS(flags) \ 477e6fb56fSmrg (cb)->waitFlags |= (flags) 487e6fb56fSmrg 497e6fb56fSmrg#define BEGIN_RING(size) \ 507e6fb56fSmrg do { \ 517e6fb56fSmrg if (cb->flushFunc && (cb->pos > (cb->bufSize-(size)))) { \ 527e6fb56fSmrg cb->flushFunc(cb); \ 537e6fb56fSmrg } \ 547e6fb56fSmrg } while(0) 557e6fb56fSmrg 567e6fb56fSmrg#define BEGIN_H2(paraType, h2size) \ 577e6fb56fSmrg do{ \ 587e6fb56fSmrg BEGIN_RING((h2size)+6); \ 597e6fb56fSmrg if (cb->mode == 2 && (paraType) == cb->rindex) \ 607e6fb56fSmrg break; \ 617e6fb56fSmrg if (cb->pos & 1) \ 627e6fb56fSmrg OUT_RING(HC_DUMMY); \ 637e6fb56fSmrg cb->header_start = cb->pos; \ 647e6fb56fSmrg cb->rindex = paraType; \ 657e6fb56fSmrg cb->mode = 2; \ 667e6fb56fSmrg OUT_RING(HALCYON_HEADER2); \ 677e6fb56fSmrg OUT_RING((paraType) << 16); \ 687e6fb56fSmrg if (!cb->has3dState && ((paraType) != HC_ParaType_CmdVdata)) { \ 697e6fb56fSmrg cb->has3dState = TRUE; \ 707e6fb56fSmrg } \ 717e6fb56fSmrg } while(0); 727e6fb56fSmrg 737e6fb56fSmrg#define OUT_RING(val) do{ \ 747e6fb56fSmrg (cb)->buf[(cb)->pos++] = (val); \ 757e6fb56fSmrg } while(0); 767e6fb56fSmrg 777e6fb56fSmrg#define OUT_RING_QW(val1, val2) \ 787e6fb56fSmrg do { \ 797e6fb56fSmrg (cb)->buf[(cb)->pos++] = (val1); \ 807e6fb56fSmrg (cb)->buf[(cb)->pos++] = (val2); \ 817e6fb56fSmrg } while (0) 827e6fb56fSmrg 837e6fb56fSmrg#define ADVANCE_RING \ 847e6fb56fSmrg cb->flushFunc(cb) 857e6fb56fSmrg 867e6fb56fSmrg#define RING_VARS \ 877e6fb56fSmrg ViaCommandBuffer *cb = &pVia->cb 887e6fb56fSmrg 897e6fb56fSmrg#define OUT_RING_H1(val1, val2) \ 907e6fb56fSmrg OUT_RING_QW(H1_ADDR(val1), val2) 917e6fb56fSmrg 927e6fb56fSmrg#define OUT_RING_SubA(val1, val2) \ 937e6fb56fSmrg OUT_RING(((val1) << HC_SubA_SHIFT) | ((val2) & HC_Para_MASK)) 947e6fb56fSmrg 957e6fb56fSmrg#endif 96