| /***************************************************************************\ |
| |* *| |
| |* 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 1993-2003 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 |
| */ |
| |
| #include <linux/fb.h> |
| #include <linux/nmi.h> |
| |
| #include "nv_type.h" |
| #include "nv_proto.h" |
| #include "nv_dma.h" |
| #include "nv_local.h" |
| |
| /* There is a HW race condition with videoram command buffers. |
| You can't jump to the location of your put offset. We write put |
| at the jump offset + SKIPS dwords with noop padding in between |
| to solve this problem */ |
| #define SKIPS 8 |
| |
| static const int NVCopyROP[16] = { |
| 0xCC, /* copy */ |
| 0x55 /* invert */ |
| }; |
| |
| static const int NVCopyROP_PM[16] = { |
| 0xCA, /* copy */ |
| 0x5A, /* invert */ |
| }; |
| |
| static inline void nvidiafb_safe_mode(struct fb_info *info) |
| { |
| struct nvidia_par *par = info->par; |
| |
| touch_softlockup_watchdog(); |
| info->pixmap.scan_align = 1; |
| par->lockup = 1; |
| } |
| |
| static inline void NVFlush(struct fb_info *info) |
| { |
| struct nvidia_par *par = info->par; |
| int count = 1000000000; |
| |
| while (--count && READ_GET(par) != par->dmaPut) ; |
| |
| if (!count) { |
| printk("nvidiafb: DMA Flush lockup\n"); |
| nvidiafb_safe_mode(info); |
| } |
| } |
| |
| static inline void NVSync(struct fb_info *info) |
| { |
| struct nvidia_par *par = info->par; |
| int count = 1000000000; |
| |
| while (--count && NV_RD32(par->PGRAPH, 0x0700)) ; |
| |
| if (!count) { |
| printk("nvidiafb: DMA Sync lockup\n"); |
| nvidiafb_safe_mode(info); |
| } |
| } |
| |
| static void NVDmaKickoff(struct nvidia_par *par) |
| { |
| if (par->dmaCurrent != par->dmaPut) { |
| par->dmaPut = par->dmaCurrent; |
| WRITE_PUT(par, par->dmaPut); |
| } |
| } |
| |
| static void NVDmaWait(struct fb_info *info, int size) |
| { |
| struct nvidia_par *par = info->par; |
| int dmaGet; |
| int count = 1000000000, cnt; |
| size++; |
| |
| while (par->dmaFree < size && --count && !par->lockup) { |
| dmaGet = READ_GET(par); |
| |
| if (par->dmaPut >= dmaGet) { |
| par->dmaFree = par->dmaMax - par->dmaCurrent; |
| if (par->dmaFree < size) { |
| NVDmaNext(par, 0x20000000); |
| if (dmaGet <= SKIPS) { |
| if (par->dmaPut <= SKIPS) |
| WRITE_PUT(par, SKIPS + 1); |
| cnt = 1000000000; |
| do { |
| dmaGet = READ_GET(par); |
| } while (--cnt && dmaGet <= SKIPS); |
| if (!cnt) { |
| printk("DMA Get lockup\n"); |
| par->lockup = 1; |
| } |
| } |
| WRITE_PUT(par, SKIPS); |
| par->dmaCurrent = par->dmaPut = SKIPS; |
| par->dmaFree = dmaGet - (SKIPS + 1); |
| } |
| } else |
| par->dmaFree = dmaGet - par->dmaCurrent - 1; |
| } |
| |
| if (!count) { |
| printk("nvidiafb: DMA Wait Lockup\n"); |
| nvidiafb_safe_mode(info); |
| } |
| } |
| |
| static void NVSetPattern(struct fb_info *info, u32 clr0, u32 clr1, |
| u32 pat0, u32 pat1) |
| { |
| struct nvidia_par *par = info->par; |
| |
| NVDmaStart(info, par, PATTERN_COLOR_0, 4); |
| NVDmaNext(par, clr0); |
| NVDmaNext(par, clr1); |
| NVDmaNext(par, pat0); |
| NVDmaNext(par, pat1); |
| } |
| |
| static void NVSetRopSolid(struct fb_info *info, u32 rop, u32 planemask) |
| { |
| struct nvidia_par *par = info->par; |
| |
| if (planemask != ~0) { |
| NVSetPattern(info, 0, planemask, ~0, ~0); |
| if (par->currentRop != (rop + 32)) { |
| NVDmaStart(info, par, ROP_SET, 1); |
| NVDmaNext(par, NVCopyROP_PM[rop]); |
| par->currentRop = rop + 32; |
| } |
| } else if (par->currentRop != rop) { |
| if (par->currentRop >= 16) |
| NVSetPattern(info, ~0, ~0, ~0, ~0); |
| NVDmaStart(info, par, ROP_SET, 1); |
| NVDmaNext(par, NVCopyROP[rop]); |
| par->currentRop = rop; |
| } |
| } |
| |
| static void NVSetClippingRectangle(struct fb_info *info, int x1, int y1, |
| int x2, int y2) |
| { |
| struct nvidia_par *par = info->par; |
| int h = y2 - y1 + 1; |
| int w = x2 - x1 + 1; |
| |
| NVDmaStart(info, par, CLIP_POINT, 2); |
| NVDmaNext(par, (y1 << 16) | x1); |
| NVDmaNext(par, (h << 16) | w); |
| } |
| |
| void NVResetGraphics(struct fb_info *info) |
| { |
| struct nvidia_par *par = info->par; |
| u32 surfaceFormat, patternFormat, rectFormat, lineFormat; |
| int pitch, i; |
| |
| pitch = info->fix.line_length; |
| |
| par->dmaBase = (u32 __iomem *) (&par->FbStart[par->FbUsableSize]); |
| |
| for (i = 0; i < SKIPS; i++) |
| NV_WR32(&par->dmaBase[i], 0, 0x00000000); |
| |
| NV_WR32(&par->dmaBase[0x0 + SKIPS], 0, 0x00040000); |
| NV_WR32(&par->dmaBase[0x1 + SKIPS], 0, 0x80000010); |
| NV_WR32(&par->dmaBase[0x2 + SKIPS], 0, 0x00042000); |
| NV_WR32(&par->dmaBase[0x3 + SKIPS], 0, 0x80000011); |
| NV_WR32(&par->dmaBase[0x4 + SKIPS], 0, 0x00044000); |
| NV_WR32(&par->dmaBase[0x5 + SKIPS], 0, 0x80000012); |
| NV_WR32(&par->dmaBase[0x6 + SKIPS], 0, 0x00046000); |
| NV_WR32(&par->dmaBase[0x7 + SKIPS], 0, 0x80000013); |
| NV_WR32(&par->dmaBase[0x8 + SKIPS], 0, 0x00048000); |
| NV_WR32(&par->dmaBase[0x9 + SKIPS], 0, 0x80000014); |
| NV_WR32(&par->dmaBase[0xA + SKIPS], 0, 0x0004A000); |
| NV_WR32(&par->dmaBase[0xB + SKIPS], 0, 0x80000015); |
| NV_WR32(&par->dmaBase[0xC + SKIPS], 0, 0x0004C000); |
| NV_WR32(&par->dmaBase[0xD + SKIPS], 0, 0x80000016); |
| NV_WR32(&par->dmaBase[0xE + SKIPS], 0, 0x0004E000); |
| NV_WR32(&par->dmaBase[0xF + SKIPS], 0, 0x80000017); |
| |
| par->dmaPut = 0; |
| par->dmaCurrent = 16 + SKIPS; |
| par->dmaMax = 8191; |
| par->dmaFree = par->dmaMax - par->dmaCurrent; |
| |
| switch (info->var.bits_per_pixel) { |
| case 32: |
| case 24: |
| surfaceFormat = SURFACE_FORMAT_DEPTH24; |
| patternFormat = PATTERN_FORMAT_DEPTH24; |
| rectFormat = RECT_FORMAT_DEPTH24; |
| lineFormat = LINE_FORMAT_DEPTH24; |
| break; |
| case 16: |
| surfaceFormat = SURFACE_FORMAT_DEPTH16; |
| patternFormat = PATTERN_FORMAT_DEPTH16; |
| rectFormat = RECT_FORMAT_DEPTH16; |
| lineFormat = LINE_FORMAT_DEPTH16; |
| break; |
| default: |
| surfaceFormat = SURFACE_FORMAT_DEPTH8; |
| patternFormat = PATTERN_FORMAT_DEPTH8; |
| rectFormat = RECT_FORMAT_DEPTH8; |
| lineFormat = LINE_FORMAT_DEPTH8; |
| break; |
| } |
| |
| NVDmaStart(info, par, SURFACE_FORMAT, 4); |
| NVDmaNext(par, surfaceFormat); |
| NVDmaNext(par, pitch | (pitch << 16)); |
| NVDmaNext(par, 0); |
| NVDmaNext(par, 0); |
| |
| NVDmaStart(info, par, PATTERN_FORMAT, 1); |
| NVDmaNext(par, patternFormat); |
| |
| NVDmaStart(info, par, RECT_FORMAT, 1); |
| NVDmaNext(par, rectFormat); |
| |
| NVDmaStart(info, par, LINE_FORMAT, 1); |
| NVDmaNext(par, lineFormat); |
| |
| par->currentRop = ~0; /* set to something invalid */ |
| NVSetRopSolid(info, ROP_COPY, ~0); |
| |
| NVSetClippingRectangle(info, 0, 0, info->var.xres_virtual, |
| info->var.yres_virtual); |
| |
| NVDmaKickoff(par); |
| } |
| |
| int nvidiafb_sync(struct fb_info *info) |
| { |
| struct nvidia_par *par = info->par; |
| |
| if (info->state != FBINFO_STATE_RUNNING) |
| return 0; |
| |
| if (!par->lockup) |
| NVFlush(info); |
| |
| if (!par->lockup) |
| NVSync(info); |
| |
| return 0; |
| } |
| |
| void nvidiafb_copyarea(struct fb_info *info, const struct fb_copyarea *region) |
| { |
| struct nvidia_par *par = info->par; |
| |
| if (info->state != FBINFO_STATE_RUNNING) |
| return; |
| |
| if (par->lockup) { |
| cfb_copyarea(info, region); |
| return; |
| } |
| |
| NVDmaStart(info, par, BLIT_POINT_SRC, 3); |
| NVDmaNext(par, (region->sy << 16) | region->sx); |
| NVDmaNext(par, (region->dy << 16) | region->dx); |
| NVDmaNext(par, (region->height << 16) | region->width); |
| |
| NVDmaKickoff(par); |
| } |
| |
| void nvidiafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| { |
| struct nvidia_par *par = info->par; |
| u32 color; |
| |
| if (info->state != FBINFO_STATE_RUNNING) |
| return; |
| |
| if (par->lockup) { |
| cfb_fillrect(info, rect); |
| return; |
| } |
| |
| if (info->var.bits_per_pixel == 8) |
| color = rect->color; |
| else |
| color = ((u32 *) info->pseudo_palette)[rect->color]; |
| |
| if (rect->rop != ROP_COPY) |
| NVSetRopSolid(info, rect->rop, ~0); |
| |
| NVDmaStart(info, par, RECT_SOLID_COLOR, 1); |
| NVDmaNext(par, color); |
| |
| NVDmaStart(info, par, RECT_SOLID_RECTS(0), 2); |
| NVDmaNext(par, (rect->dx << 16) | rect->dy); |
| NVDmaNext(par, (rect->width << 16) | rect->height); |
| |
| NVDmaKickoff(par); |
| |
| if (rect->rop != ROP_COPY) |
| NVSetRopSolid(info, ROP_COPY, ~0); |
| } |
| |
| static void nvidiafb_mono_color_expand(struct fb_info *info, |
| const struct fb_image *image) |
| { |
| struct nvidia_par *par = info->par; |
| u32 fg, bg, mask = ~(~0 >> (32 - info->var.bits_per_pixel)); |
| u32 dsize, width, *data = (u32 *) image->data, tmp; |
| int j, k = 0; |
| |
| width = (image->width + 31) & ~31; |
| dsize = (width * image->height) >> 5; |
| |
| if (info->var.bits_per_pixel == 8) { |
| fg = image->fg_color | mask; |
| bg = image->bg_color | mask; |
| } else { |
| fg = ((u32 *) info->pseudo_palette)[image->fg_color] | mask; |
| bg = ((u32 *) info->pseudo_palette)[image->bg_color] | mask; |
| } |
| |
| NVDmaStart(info, par, RECT_EXPAND_TWO_COLOR_CLIP, 7); |
| NVDmaNext(par, (image->dy << 16) | (image->dx & 0xffff)); |
| NVDmaNext(par, ((image->dy + image->height) << 16) | |
| ((image->dx + image->width) & 0xffff)); |
| NVDmaNext(par, bg); |
| NVDmaNext(par, fg); |
| NVDmaNext(par, (image->height << 16) | width); |
| NVDmaNext(par, (image->height << 16) | width); |
| NVDmaNext(par, (image->dy << 16) | (image->dx & 0xffff)); |
| |
| while (dsize >= RECT_EXPAND_TWO_COLOR_DATA_MAX_DWORDS) { |
| NVDmaStart(info, par, RECT_EXPAND_TWO_COLOR_DATA(0), |
| RECT_EXPAND_TWO_COLOR_DATA_MAX_DWORDS); |
| |
| for (j = RECT_EXPAND_TWO_COLOR_DATA_MAX_DWORDS; j--;) { |
| tmp = data[k++]; |
| reverse_order(&tmp); |
| NVDmaNext(par, tmp); |
| } |
| |
| dsize -= RECT_EXPAND_TWO_COLOR_DATA_MAX_DWORDS; |
| } |
| |
| if (dsize) { |
| NVDmaStart(info, par, RECT_EXPAND_TWO_COLOR_DATA(0), dsize); |
| |
| for (j = dsize; j--;) { |
| tmp = data[k++]; |
| reverse_order(&tmp); |
| NVDmaNext(par, tmp); |
| } |
| } |
| |
| NVDmaKickoff(par); |
| } |
| |
| void nvidiafb_imageblit(struct fb_info *info, const struct fb_image *image) |
| { |
| struct nvidia_par *par = info->par; |
| |
| if (info->state != FBINFO_STATE_RUNNING) |
| return; |
| |
| if (image->depth == 1 && !par->lockup) |
| nvidiafb_mono_color_expand(info, image); |
| else |
| cfb_imageblit(info, image); |
| } |
