| 1 | /***************************************************************************\ |
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| 2 | |* *| |
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| 3 | |* Copyright 1993-2003 NVIDIA, Corporation. All rights reserved. *| |
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| 4 | |* *| |
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| 5 | |* NOTICE TO USER: The source code is copyrighted under U.S. and *| |
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| 6 | |* international laws. Users and possessors of this source code are *| |
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| 7 | |* hereby granted a nonexclusive, royalty-free copyright license to *| |
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| 8 | |* use this code in individual and commercial software. *| |
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| 9 | |* *| |
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| 10 | |* Any use of this source code must include, in the user documenta- *| |
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| 11 | |* tion and internal comments to the code, notices to the end user *| |
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| 12 | |* as follows: *| |
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| 13 | |* *| |
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| 14 | |* Copyright 1993-1999 NVIDIA, Corporation. All rights reserved. *| |
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| 15 | |* *| |
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| 16 | |* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *| |
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| 17 | |* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *| |
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| 18 | |* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *| |
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| 19 | |* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *| |
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| 20 | |* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *| |
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| 21 | |* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *| |
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| 22 | |* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *| |
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| 23 | |* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *| |
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| 24 | |* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *| |
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| 25 | |* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *| |
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| 26 | |* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *| |
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| 27 | |* *| |
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| 28 | |* U.S. Government End Users. This source code is a "commercial *| |
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| 29 | |* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *| |
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| 30 | |* consisting of "commercial computer software" and "commercial *| |
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| 31 | |* computer software documentation," as such terms are used in *| |
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| 32 | |* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *| |
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| 33 | |* ment only as a commercial end item. Consistent with 48 C.F.R. *| |
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| 34 | |* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *| |
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| 35 | |* all U.S. Government End Users acquire the source code with only *| |
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| 36 | |* those rights set forth herein. *| |
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| 37 | |* *| |
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| 38 | \***************************************************************************/ |
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| 39 | |
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| 40 | /* |
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| 41 | * GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/ |
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| 42 | * XFree86 'nv' driver, this source code is provided under MIT-style licensing |
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| 43 | * where the source code is provided "as is" without warranty of any kind. |
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| 44 | * The only usage restriction is for the copyright notices to be retained |
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| 45 | * whenever code is used. |
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| 46 | * |
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| 47 | * Antonino Daplas <adaplas@pol.net> 2005-03-11 |
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| 48 | */ |
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| 49 | |
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| 50 | #ifndef __NV_LOCAL_H__ |
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| 51 | #define __NV_LOCAL_H__ |
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| 52 | |
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| 53 | /* |
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| 54 | * This file includes any environment or machine specific values to access the |
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| 55 | * HW. Put all affected includes, typdefs, etc. here so the riva_hw.* files |
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| 56 | * can stay generic in nature. |
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| 57 | */ |
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| 58 | |
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| 59 | /* |
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| 60 | * HW access macros. These assume memory-mapped I/O, and not normal I/O space. |
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| 61 | */ |
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| 62 | #define NV_WR08(p,i,d) (__raw_writeb((d), (void __iomem *)(p) + (i))) |
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| 63 | #define NV_RD08(p,i) (__raw_readb((void __iomem *)(p) + (i))) |
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| 64 | #define NV_WR16(p,i,d) (__raw_writew((d), (void __iomem *)(p) + (i))) |
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| 65 | #define NV_RD16(p,i) (__raw_readw((void __iomem *)(p) + (i))) |
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| 66 | #define NV_WR32(p,i,d) (__raw_writel((d), (void __iomem *)(p) + (i))) |
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| 67 | #define NV_RD32(p,i) (__raw_readl((void __iomem *)(p) + (i))) |
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| 68 | |
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| 69 | /* VGA I/O is now always done through MMIO */ |
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| 70 | #define VGA_WR08(p,i,d) (writeb((d), (void __iomem *)(p) + (i))) |
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| 71 | #define VGA_RD08(p,i) (readb((void __iomem *)(p) + (i))) |
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| 72 | |
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| 73 | #define NVDmaNext(par, data) \ |
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| 74 | NV_WR32(&(par)->dmaBase[(par)->dmaCurrent++], 0, (data)) |
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| 75 | |
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| 76 | #define NVDmaStart(info, par, tag, size) { \ |
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| 77 | if((par)->dmaFree <= (size)) \ |
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| 78 | NVDmaWait(info, size); \ |
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| 79 | NVDmaNext(par, ((size) << 18) | (tag)); \ |
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| 80 | (par)->dmaFree -= ((size) + 1); \ |
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| 81 | } |
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| 82 | |
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| 83 | #if defined(__i386__) |
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| 84 | #define _NV_FENCE() outb(0, 0x3D0); |
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| 85 | #else |
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| 86 | #define _NV_FENCE() mb(); |
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| 87 | #endif |
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| 88 | |
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| 89 | #define WRITE_PUT(par, data) { \ |
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| 90 | _NV_FENCE() \ |
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| 91 | NV_RD08((par)->FbStart, 0); \ |
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| 92 | NV_WR32(&(par)->FIFO[0x0010], 0, (data) << 2); \ |
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| 93 | mb(); \ |
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| 94 | } |
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| 95 | |
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| 96 | #define READ_GET(par) (NV_RD32(&(par)->FIFO[0x0011], 0) >> 2) |
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| 97 | |
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| 98 | #ifdef __LITTLE_ENDIAN |
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| 99 | |
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| 100 | #include <linux/bitrev.h> |
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| 101 | |
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| 102 | #define reverse_order(l) \ |
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| 103 | do { \ |
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| 104 | u8 *a = (u8 *)(l); \ |
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| 105 | a[0] = bitrev8(a[0]); \ |
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| 106 | a[1] = bitrev8(a[1]); \ |
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| 107 | a[2] = bitrev8(a[2]); \ |
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| 108 | a[3] = bitrev8(a[3]); \ |
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| 109 | } while(0) |
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| 110 | #else |
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| 111 | #define reverse_order(l) do { } while(0) |
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| 112 | #endif /* __LITTLE_ENDIAN */ |
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| 113 | |
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| 114 | #endif /* __NV_LOCAL_H__ */ |
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| 115 | |
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