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1/***************************************************************************\2|* *|3|* Copyright 1993-2003 NVIDIA, Corporation. All rights reserved. *|4|* *|5|* NOTICE TO USER: The source code is copyrighted under U.S. and *|6|* international laws. Users and possessors of this source code are *|7|* hereby granted a nonexclusive, royalty-free copyright license to *|8|* use this code in individual and commercial software. *|9|* *|10|* Any use of this source code must include, in the user documenta- *|11|* tion and internal comments to the code, notices to the end user *|12|* as follows: *|13|* *|14|* Copyright 1993-1999 NVIDIA, Corporation. All rights reserved. *|15|* *|16|* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *|17|* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *|18|* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *|19|* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *|20|* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *|21|* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *|22|* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *|23|* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *|24|* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *|25|* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *|26|* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *|27|* *|28|* U.S. Government End Users. This source code is a "commercial *|29|* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *|30|* consisting of "commercial computer software" and "commercial *|31|* computer software documentation," as such terms are used in *|32|* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *|33|* ment only as a commercial end item. Consistent with 48 C.F.R. *|34|* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *|35|* all U.S. Government End Users acquire the source code with only *|36|* those rights set forth herein. *|37|* *|38 \***************************************************************************/39 40/*41 * GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/42 * XFree86 'nv' driver, this source code is provided under MIT-style licensing43 * where the source code is provided "as is" without warranty of any kind.44 * The only usage restriction is for the copyright notices to be retained45 * whenever code is used.46 *47 * Antonino Daplas <adaplas@pol.net> 2005-03-1148 */49 50#ifndef __NV_LOCAL_H__51#define __NV_LOCAL_H__52 53/*54 * This file includes any environment or machine specific values to access the55 * HW. Put all affected includes, typdefs, etc. here so the riva_hw.* files56 * can stay generic in nature.57 */58 59/*60 * HW access macros. These assume memory-mapped I/O, and not normal I/O space.61 */62#define NV_WR08(p,i,d) (__raw_writeb((d), (void __iomem *)(p) + (i)))63#define NV_RD08(p,i) (__raw_readb((void __iomem *)(p) + (i)))64#define NV_WR16(p,i,d) (__raw_writew((d), (void __iomem *)(p) + (i)))65#define NV_RD16(p,i) (__raw_readw((void __iomem *)(p) + (i)))66#define NV_WR32(p,i,d) (__raw_writel((d), (void __iomem *)(p) + (i)))67#define NV_RD32(p,i) (__raw_readl((void __iomem *)(p) + (i)))68 69/* VGA I/O is now always done through MMIO */70#define VGA_WR08(p,i,d) (writeb((d), (void __iomem *)(p) + (i)))71#define VGA_RD08(p,i) (readb((void __iomem *)(p) + (i)))72 73#define NVDmaNext(par, data) \74 NV_WR32(&(par)->dmaBase[(par)->dmaCurrent++], 0, (data))75 76#define NVDmaStart(info, par, tag, size) { \77 if((par)->dmaFree <= (size)) \78 NVDmaWait(info, size); \79 NVDmaNext(par, ((size) << 18) | (tag)); \80 (par)->dmaFree -= ((size) + 1); \81}82 83#if defined(__i386__)84#define _NV_FENCE() outb(0, 0x3D0);85#else86#define _NV_FENCE() mb();87#endif88 89#define WRITE_PUT(par, data) { \90 _NV_FENCE() \91 NV_RD08((par)->FbStart, 0); \92 NV_WR32(&(par)->FIFO[0x0010], 0, (data) << 2); \93 mb(); \94}95 96#define READ_GET(par) (NV_RD32(&(par)->FIFO[0x0011], 0) >> 2)97 98#ifdef __LITTLE_ENDIAN99 100#include <linux/bitrev.h>101 102#define reverse_order(l) \103do { \104 u8 *a = (u8 *)(l); \105 a[0] = bitrev8(a[0]); \106 a[1] = bitrev8(a[1]); \107 a[2] = bitrev8(a[2]); \108 a[3] = bitrev8(a[3]); \109} while(0)110#else111#define reverse_order(l) do { } while(0)112#endif /* __LITTLE_ENDIAN */113 114#endif /* __NV_LOCAL_H__ */115