diff options
Diffstat (limited to 'drivers/video/fbdev/nvidia/nv_local.h')
| -rw-r--r-- | drivers/video/fbdev/nvidia/nv_local.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/video/fbdev/nvidia/nv_local.h b/drivers/video/fbdev/nvidia/nv_local.h new file mode 100644 index 000000000000..68e508daa417 --- /dev/null +++ b/drivers/video/fbdev/nvidia/nv_local.h @@ -0,0 +1,114 @@ +/***************************************************************************\ +|* *| +|* 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(info, par, tag, size) { \ + if((par)->dmaFree <= (size)) \ + NVDmaWait(info, 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__ */ |