/***************************************************************************\
|* *|
|* Copyright 1993-2003 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NOTICE TO USER: The source code is copyrighted under U.S. and *|
|* international laws. Users and possessors of this source code are *|
|* hereby granted a nonexclusive, royalty-free copyright license to *|
|* use this code in individual and commercial software. *|
|* *|
|* Any use of this source code must include, in the user documenta- *|
|* tion and internal comments to the code, notices to the end user *|
|* as follows: *|
|* *|
|* Copyright 1993-1999 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *|
|* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *|
|* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *|
|* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *|
|* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *|
|* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *|
|* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *|
|* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *|
|* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *|
|* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *|
|* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *|
|* *|
|* U.S. Government End Users. This source code is a "commercial *|
|* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *|
|* consisting of "commercial computer software" and "commercial *|
|* computer software documentation," as such terms are used in *|
|* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *|
|* ment only as a commercial end item. Consistent with 48 C.F.R. *|
|* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *|
|* all U.S. Government End Users acquire the source code with only *|
|* those rights set forth herein. *|
|* *|
\***************************************************************************/
/*
* GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/
* XFree86 'nv' driver, this source code is provided under MIT-style licensing
* where the source code is provided "as is" without warranty of any kind.
* The only usage restriction is for the copyright notices to be retained
* whenever code is used.
*
* Antonino Daplas <adaplas@pol.net> 2005-03-11
*/
#ifndef __NV_LOCAL_H__
#define __NV_LOCAL_H__
/*
* This file includes any environment or machine specific values to access the
* HW. Put all affected includes, typdefs, etc. here so the riva_hw.* files
* can stay generic in nature.
*/
/*
* HW access macros. These assume memory-mapped I/O, and not normal I/O space.
*/
#define NV_WR08(p,i,d) (__raw_writeb((d), (void __iomem *)(p) + (i)))
#define NV_RD08(p,i) (__raw_readb((void __iomem *)(p) + (i)))
#define NV_WR16(p,i,d) (__raw_writew((d), (void __iomem *)(p) + (i)))
#define NV_RD16(p,i) (__raw_readw((void __iomem *)(p) + (i)))
#define NV_WR32(p,i,d) (__raw_writel((d), (void __iomem *)(p) + (i)))
#define NV_RD32(p,i) (__raw_readl((void __iomem *)(p) + (i)))
/* VGA I/O is now always done through MMIO */
#define VGA_WR08(p,i,d) (writeb((d), (void __iomem *)(p) + (i)))
#define VGA_RD08(p,i) (readb((void __iomem *)(p) + (i)))
#define NVDmaNext(par, data) \
NV_WR32(&(par)->dmaBase[(par)->dmaCurrent++], 0, (data))
#define NVDmaStart(par, tag, size) { \
if((par)->dmaFree <= (size)) \
NVDmaWait(par, size); \
NVDmaNext(par, ((size) << 18) | (tag)); \
(par)->dmaFree -= ((size) + 1); \
}
#if defined(__i386__)
#define _NV_FENCE() outb(0, 0x3D0);
#else
#define _NV_FENCE() mb();
#endif
#define WRITE_PUT(par, data) { \
_NV_FENCE() \
NV_RD08((par)->FbStart, 0); \
NV_WR32(&(par)->FIFO[0x0010], 0, (data) << 2); \
mb(); \
}
#define READ_GET(par) (NV_RD32(&(par)->FIFO[0x0011], 0) >> 2)
#ifdef __LITTLE_ENDIAN
#include <linux/bitrev.h>
#define reverse_order(l) \
do { \
u8 *a = (u8 *)(l); \
a[0] = bitrev8(a[0]); \
a[1] = bitrev8(a[1]); \
a[2] = bitrev8(a[2]); \
a[3] = bitrev8(a[3]); \
} while(0)
#else
#define reverse_order(l) do { } while(0)
#endif /* __LITTLE_ENDIAN */
#endif /* __NV_LOCAL_H__ */
