Initial import

1 files changed, 1603 insertions, 0 deletions

diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
new file mode 100644
index 000000000..4273c6ee8
--- /dev/null
+++ b/drivers/video/fbdev/nvidia/nvidia.c
@@ -0,0 +1,1603 @@
+/*
+ * linux/drivers/video/nvidia/nvidia.c - nVidia fb driver
+ *
+ * Copyright 2004 Antonino Daplas <adaplas@pol.net>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/console.h>
+#include <linux/backlight.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+#ifdef CONFIG_BOOTX_TEXT
+#include <asm/btext.h>
+#endif
+
+#include "nv_local.h"
+#include "nv_type.h"
+#include "nv_proto.h"
+#include "nv_dma.h"
+
+#ifdef CONFIG_FB_NVIDIA_DEBUG
+#define NVTRACE          printk
+#else
+#define NVTRACE          if (0) printk
+#endif
+
+#define NVTRACE_ENTER(...)  NVTRACE("%s START\n", __func__)
+#define NVTRACE_LEAVE(...)  NVTRACE("%s END\n", __func__)
+
+#ifdef CONFIG_FB_NVIDIA_DEBUG
+#define assert(expr) \
+	if (!(expr)) { \
+	printk( "Assertion failed! %s,%s,%s,line=%d\n",\
+	#expr,__FILE__,__func__,__LINE__); \
+	BUG(); \
+	}
+#else
+#define assert(expr)
+#endif
+
+#define PFX "nvidiafb: "
+
+/* HW cursor parameters */
+#define MAX_CURS		32
+
+static struct pci_device_id nvidiafb_pci_tbl[] = {
+	{PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+	 PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0},
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, nvidiafb_pci_tbl);
+
+/* command line data, set in nvidiafb_setup() */
+static int flatpanel = -1;	/* Autodetect later */
+static int fpdither = -1;
+static int forceCRTC = -1;
+static int hwcur = 0;
+static int noaccel = 0;
+static int noscale = 0;
+static int paneltweak = 0;
+static int vram = 0;
+static int bpp = 8;
+static int reverse_i2c;
+#ifdef CONFIG_MTRR
+static bool nomtrr = false;
+#endif
+#ifdef CONFIG_PMAC_BACKLIGHT
+static int backlight = 1;
+#else
+static int backlight = 0;
+#endif
+
+static char *mode_option = NULL;
+
+static struct fb_fix_screeninfo nvidiafb_fix = {
+	.type = FB_TYPE_PACKED_PIXELS,
+	.xpanstep = 8,
+	.ypanstep = 1,
+};
+
+static struct fb_var_screeninfo nvidiafb_default_var = {
+	.xres = 640,
+	.yres = 480,
+	.xres_virtual = 640,
+	.yres_virtual = 480,
+	.bits_per_pixel = 8,
+	.red = {0, 8, 0},
+	.green = {0, 8, 0},
+	.blue = {0, 8, 0},
+	.transp = {0, 0, 0},
+	.activate = FB_ACTIVATE_NOW,
+	.height = -1,
+	.width = -1,
+	.pixclock = 39721,
+	.left_margin = 40,
+	.right_margin = 24,
+	.upper_margin = 32,
+	.lower_margin = 11,
+	.hsync_len = 96,
+	.vsync_len = 2,
+	.vmode = FB_VMODE_NONINTERLACED
+};
+
+static void nvidiafb_load_cursor_image(struct nvidia_par *par, u8 * data8,
+				       u16 bg, u16 fg, u32 w, u32 h)
+{
+	u32 *data = (u32 *) data8;
+	int i, j, k = 0;
+	u32 b, tmp;
+
+	w = (w + 1) & ~1;
+
+	for (i = 0; i < h; i++) {
+		b = *data++;
+		reverse_order(&b);
+
+		for (j = 0; j < w / 2; j++) {
+			tmp = 0;
+#if defined (__BIG_ENDIAN)
+			tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
+			b <<= 1;
+			tmp |= (b & (1 << 31)) ? fg : bg;
+			b <<= 1;
+#else
+			tmp = (b & 1) ? fg : bg;
+			b >>= 1;
+			tmp |= (b & 1) ? fg << 16 : bg << 16;
+			b >>= 1;
+#endif
+			NV_WR32(&par->CURSOR[k++], 0, tmp);
+		}
+		k += (MAX_CURS - w) / 2;
+	}
+}
+
+static void nvidia_write_clut(struct nvidia_par *par,
+			      u8 regnum, u8 red, u8 green, u8 blue)
+{
+	NVWriteDacMask(par, 0xff);
+	NVWriteDacWriteAddr(par, regnum);
+	NVWriteDacData(par, red);
+	NVWriteDacData(par, green);
+	NVWriteDacData(par, blue);
+}
+
+static void nvidia_read_clut(struct nvidia_par *par,
+			     u8 regnum, u8 * red, u8 * green, u8 * blue)
+{
+	NVWriteDacMask(par, 0xff);
+	NVWriteDacReadAddr(par, regnum);
+	*red = NVReadDacData(par);
+	*green = NVReadDacData(par);
+	*blue = NVReadDacData(par);
+}
+
+static int nvidia_panel_tweak(struct nvidia_par *par,
+			      struct _riva_hw_state *state)
+{
+	int tweak = 0;
+
+   if (par->paneltweak) {
+	   tweak = par->paneltweak;
+   } else {
+	   /* begin flat panel hacks */
+	   /* This is unfortunate, but some chips need this register
+	      tweaked or else you get artifacts where adjacent pixels are
+	      swapped.  There are no hard rules for what to set here so all
+	      we can do is experiment and apply hacks. */
+
+	   if(((par->Chipset & 0xffff) == 0x0328) && (state->bpp == 32)) {
+		   /* At least one NV34 laptop needs this workaround. */
+		   tweak = -1;
+	   }
+
+	   if((par->Chipset & 0xfff0) == 0x0310) {
+		   tweak = 1;
+	   }
+	   /* end flat panel hacks */
+   }
+
+   return tweak;
+}
+
+static void nvidia_screen_off(struct nvidia_par *par, int on)
+{
+	unsigned char tmp;
+
+	if (on) {
+		/*
+		 * Turn off screen and disable sequencer.
+		 */
+		tmp = NVReadSeq(par, 0x01);
+
+		NVWriteSeq(par, 0x00, 0x01);		/* Synchronous Reset */
+		NVWriteSeq(par, 0x01, tmp | 0x20);	/* disable the display */
+	} else {
+		/*
+		 * Reenable sequencer, then turn on screen.
+		 */
+
+		tmp = NVReadSeq(par, 0x01);
+
+		NVWriteSeq(par, 0x01, tmp & ~0x20);	/* reenable display */
+		NVWriteSeq(par, 0x00, 0x03);		/* End Reset */
+	}
+}
+
+static void nvidia_save_vga(struct nvidia_par *par,
+			    struct _riva_hw_state *state)
+{
+	int i;
+
+	NVTRACE_ENTER();
+	NVLockUnlock(par, 0);
+
+	NVUnloadStateExt(par, state);
+
+	state->misc_output = NVReadMiscOut(par);
+
+	for (i = 0; i < NUM_CRT_REGS; i++)
+		state->crtc[i] = NVReadCrtc(par, i);
+
+	for (i = 0; i < NUM_ATC_REGS; i++)
+		state->attr[i] = NVReadAttr(par, i);
+
+	for (i = 0; i < NUM_GRC_REGS; i++)
+		state->gra[i] = NVReadGr(par, i);
+
+	for (i = 0; i < NUM_SEQ_REGS; i++)
+		state->seq[i] = NVReadSeq(par, i);
+	NVTRACE_LEAVE();
+}
+
+#undef DUMP_REG
+
+static void nvidia_write_regs(struct nvidia_par *par,
+			      struct _riva_hw_state *state)
+{
+	int i;
+
+	NVTRACE_ENTER();
+
+	NVLoadStateExt(par, state);
+
+	NVWriteMiscOut(par, state->misc_output);
+
+	for (i = 1; i < NUM_SEQ_REGS; i++) {
+#ifdef DUMP_REG
+		printk(" SEQ[%02x] = %08x\n", i, state->seq[i]);
+#endif
+		NVWriteSeq(par, i, state->seq[i]);
+	}
+
+	/* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 of CRTC[17] */
+	NVWriteCrtc(par, 0x11, state->crtc[0x11] & ~0x80);
+
+	for (i = 0; i < NUM_CRT_REGS; i++) {
+		switch (i) {
+		case 0x19:
+		case 0x20 ... 0x40:
+			break;
+		default:
+#ifdef DUMP_REG
+			printk("CRTC[%02x] = %08x\n", i, state->crtc[i]);
+#endif
+			NVWriteCrtc(par, i, state->crtc[i]);
+		}
+	}
+
+	for (i = 0; i < NUM_GRC_REGS; i++) {
+#ifdef DUMP_REG
+		printk(" GRA[%02x] = %08x\n", i, state->gra[i]);
+#endif
+		NVWriteGr(par, i, state->gra[i]);
+	}
+
+	for (i = 0; i < NUM_ATC_REGS; i++) {
+#ifdef DUMP_REG
+		printk("ATTR[%02x] = %08x\n", i, state->attr[i]);
+#endif
+		NVWriteAttr(par, i, state->attr[i]);
+	}
+
+	NVTRACE_LEAVE();
+}
+
+static int nvidia_calc_regs(struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	struct _riva_hw_state *state = &par->ModeReg;
+	int i, depth = fb_get_color_depth(&info->var, &info->fix);
+	int h_display = info->var.xres / 8 - 1;
+	int h_start = (info->var.xres + info->var.right_margin) / 8 - 1;
+	int h_end = (info->var.xres + info->var.right_margin +
+		     info->var.hsync_len) / 8 - 1;
+	int h_total = (info->var.xres + info->var.right_margin +
+		       info->var.hsync_len + info->var.left_margin) / 8 - 5;
+	int h_blank_s = h_display;
+	int h_blank_e = h_total + 4;
+	int v_display = info->var.yres - 1;
+	int v_start = info->var.yres + info->var.lower_margin - 1;
+	int v_end = (info->var.yres + info->var.lower_margin +
+		     info->var.vsync_len) - 1;
+	int v_total = (info->var.yres + info->var.lower_margin +
+		       info->var.vsync_len + info->var.upper_margin) - 2;
+	int v_blank_s = v_display;
+	int v_blank_e = v_total + 1;
+
+	/*
+	 * Set all CRTC values.
+	 */
+
+	if (info->var.vmode & FB_VMODE_INTERLACED)
+		v_total |= 1;
+
+	if (par->FlatPanel == 1) {
+		v_start = v_total - 3;
+		v_end = v_total - 2;
+		v_blank_s = v_start;
+		h_start = h_total - 5;
+		h_end = h_total - 2;
+		h_blank_e = h_total + 4;
+	}
+
+	state->crtc[0x0] = Set8Bits(h_total);
+	state->crtc[0x1] = Set8Bits(h_display);
+	state->crtc[0x2] = Set8Bits(h_blank_s);
+	state->crtc[0x3] = SetBitField(h_blank_e, 4: 0, 4:0)
+		| SetBit(7);
+	state->crtc[0x4] = Set8Bits(h_start);
+	state->crtc[0x5] = SetBitField(h_blank_e, 5: 5, 7:7)
+		| SetBitField(h_end, 4: 0, 4:0);
+	state->crtc[0x6] = SetBitField(v_total, 7: 0, 7:0);
+	state->crtc[0x7] = SetBitField(v_total, 8: 8, 0:0)
+		| SetBitField(v_display, 8: 8, 1:1)
+		| SetBitField(v_start, 8: 8, 2:2)
+		| SetBitField(v_blank_s, 8: 8, 3:3)
+		| SetBit(4)
+		| SetBitField(v_total, 9: 9, 5:5)
+		| SetBitField(v_display, 9: 9, 6:6)
+		| SetBitField(v_start, 9: 9, 7:7);
+	state->crtc[0x9] = SetBitField(v_blank_s, 9: 9, 5:5)
+		| SetBit(6)
+		| ((info->var.vmode & FB_VMODE_DOUBLE) ? 0x80 : 0x00);
+	state->crtc[0x10] = Set8Bits(v_start);
+	state->crtc[0x11] = SetBitField(v_end, 3: 0, 3:0) | SetBit(5);
+	state->crtc[0x12] = Set8Bits(v_display);
+	state->crtc[0x13] = ((info->var.xres_virtual / 8) *
+			     (info->var.bits_per_pixel / 8));
+	state->crtc[0x15] = Set8Bits(v_blank_s);
+	state->crtc[0x16] = Set8Bits(v_blank_e);
+
+	state->attr[0x10] = 0x01;
+
+	if (par->Television)
+		state->attr[0x11] = 0x00;
+
+	state->screen = SetBitField(h_blank_e, 6: 6, 4:4)
+		| SetBitField(v_blank_s, 10: 10, 3:3)
+		| SetBitField(v_start, 10: 10, 2:2)
+		| SetBitField(v_display, 10: 10, 1:1)
+		| SetBitField(v_total, 10: 10, 0:0);
+
+	state->horiz = SetBitField(h_total, 8: 8, 0:0)
+		| SetBitField(h_display, 8: 8, 1:1)
+		| SetBitField(h_blank_s, 8: 8, 2:2)
+		| SetBitField(h_start, 8: 8, 3:3);
+
+	state->extra = SetBitField(v_total, 11: 11, 0:0)
+		| SetBitField(v_display, 11: 11, 2:2)
+		| SetBitField(v_start, 11: 11, 4:4)
+		| SetBitField(v_blank_s, 11: 11, 6:6);
+
+	if (info->var.vmode & FB_VMODE_INTERLACED) {
+		h_total = (h_total >> 1) & ~1;
+		state->interlace = Set8Bits(h_total);
+		state->horiz |= SetBitField(h_total, 8: 8, 4:4);
+	} else {
+		state->interlace = 0xff;	/* interlace off */
+	}
+
+	/*
+	 * Calculate the extended registers.
+	 */
+
+	if (depth < 24)
+		i = depth;
+	else
+		i = 32;
+
+	if (par->Architecture >= NV_ARCH_10)
+		par->CURSOR = (volatile u32 __iomem *)(info->screen_base +
+						       par->CursorStart);
+
+	if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
+		state->misc_output &= ~0x40;
+	else
+		state->misc_output |= 0x40;
+	if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
+		state->misc_output &= ~0x80;
+	else
+		state->misc_output |= 0x80;
+
+	NVCalcStateExt(par, state, i, info->var.xres_virtual,
+		       info->var.xres, info->var.yres_virtual,
+		       1000000000 / info->var.pixclock, info->var.vmode);
+
+	state->scale = NV_RD32(par->PRAMDAC, 0x00000848) & 0xfff000ff;
+	if (par->FlatPanel == 1) {
+		state->pixel |= (1 << 7);
+
+		if (!par->fpScaler || (par->fpWidth <= info->var.xres)
+		    || (par->fpHeight <= info->var.yres)) {
+			state->scale |= (1 << 8);
+		}
+
+		if (!par->crtcSync_read) {
+			state->crtcSync = NV_RD32(par->PRAMDAC, 0x0828);
+			par->crtcSync_read = 1;
+		}
+
+		par->PanelTweak = nvidia_panel_tweak(par, state);
+	}
+
+	state->vpll = state->pll;
+	state->vpll2 = state->pll;
+	state->vpllB = state->pllB;
+	state->vpll2B = state->pllB;
+
+	VGA_WR08(par->PCIO, 0x03D4, 0x1C);
+	state->fifo = VGA_RD08(par->PCIO, 0x03D5) & ~(1<<5);
+
+	if (par->CRTCnumber) {
+		state->head = NV_RD32(par->PCRTC0, 0x00000860) & ~0x00001000;
+		state->head2 = NV_RD32(par->PCRTC0, 0x00002860) | 0x00001000;
+		state->crtcOwner = 3;
+		state->pllsel |= 0x20000800;
+		state->vpll = NV_RD32(par->PRAMDAC0, 0x00000508);
+		if (par->twoStagePLL)
+			state->vpllB = NV_RD32(par->PRAMDAC0, 0x00000578);
+	} else if (par->twoHeads) {
+		state->head = NV_RD32(par->PCRTC0, 0x00000860) | 0x00001000;
+		state->head2 = NV_RD32(par->PCRTC0, 0x00002860) & ~0x00001000;
+		state->crtcOwner = 0;
+		state->vpll2 = NV_RD32(par->PRAMDAC0, 0x0520);
+		if (par->twoStagePLL)
+			state->vpll2B = NV_RD32(par->PRAMDAC0, 0x057C);
+	}
+
+	state->cursorConfig = 0x00000100;
+
+	if (info->var.vmode & FB_VMODE_DOUBLE)
+		state->cursorConfig |= (1 << 4);
+
+	if (par->alphaCursor) {
+		if ((par->Chipset & 0x0ff0) != 0x0110)
+			state->cursorConfig |= 0x04011000;
+		else
+			state->cursorConfig |= 0x14011000;
+		state->general |= (1 << 29);
+	} else
+		state->cursorConfig |= 0x02000000;
+
+	if (par->twoHeads) {
+		if ((par->Chipset & 0x0ff0) == 0x0110) {
+			state->dither = NV_RD32(par->PRAMDAC, 0x0528) &
+			    ~0x00010000;
+			if (par->FPDither)
+				state->dither |= 0x00010000;
+		} else {
+			state->dither = NV_RD32(par->PRAMDAC, 0x083C) & ~1;
+			if (par->FPDither)
+				state->dither |= 1;
+		}
+	}
+
+	state->timingH = 0;
+	state->timingV = 0;
+	state->displayV = info->var.xres;
+
+	return 0;
+}
+
+static void nvidia_init_vga(struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	struct _riva_hw_state *state = &par->ModeReg;
+	int i;
+
+	for (i = 0; i < 0x10; i++)
+		state->attr[i] = i;
+	state->attr[0x10] = 0x41;
+	state->attr[0x11] = 0xff;
+	state->attr[0x12] = 0x0f;
+	state->attr[0x13] = 0x00;
+	state->attr[0x14] = 0x00;
+
+	memset(state->crtc, 0x00, NUM_CRT_REGS);
+	state->crtc[0x0a] = 0x20;
+	state->crtc[0x17] = 0xe3;
+	state->crtc[0x18] = 0xff;
+	state->crtc[0x28] = 0x40;
+
+	memset(state->gra, 0x00, NUM_GRC_REGS);
+	state->gra[0x05] = 0x40;
+	state->gra[0x06] = 0x05;
+	state->gra[0x07] = 0x0f;
+	state->gra[0x08] = 0xff;
+
+	state->seq[0x00] = 0x03;
+	state->seq[0x01] = 0x01;
+	state->seq[0x02] = 0x0f;
+	state->seq[0x03] = 0x00;
+	state->seq[0x04] = 0x0e;
+
+	state->misc_output = 0xeb;
+}
+
+static int nvidiafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+	struct nvidia_par *par = info->par;
+	u8 data[MAX_CURS * MAX_CURS / 8];
+	int i, set = cursor->set;
+	u16 fg, bg;
+
+	if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
+		return -ENXIO;
+
+	NVShowHideCursor(par, 0);
+
+	if (par->cursor_reset) {
+		set = FB_CUR_SETALL;
+		par->cursor_reset = 0;
+	}
+
+	if (set & FB_CUR_SETSIZE)
+		memset_io(par->CURSOR, 0, MAX_CURS * MAX_CURS * 2);
+
+	if (set & FB_CUR_SETPOS) {
+		u32 xx, yy, temp;
+
+		yy = cursor->image.dy - info->var.yoffset;
+		xx = cursor->image.dx - info->var.xoffset;
+		temp = xx & 0xFFFF;
+		temp |= yy << 16;
+
+		NV_WR32(par->PRAMDAC, 0x0000300, temp);
+	}
+
+	if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
+		u32 bg_idx = cursor->image.bg_color;
+		u32 fg_idx = cursor->image.fg_color;
+		u32 s_pitch = (cursor->image.width + 7) >> 3;
+		u32 d_pitch = MAX_CURS / 8;
+		u8 *dat = (u8 *) cursor->image.data;
+		u8 *msk = (u8 *) cursor->mask;
+		u8 *src;
+
+		src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
+
+		if (src) {
+			switch (cursor->rop) {
+			case ROP_XOR:
+				for (i = 0; i < s_pitch * cursor->image.height; i++)
+					src[i] = dat[i] ^ msk[i];
+				break;
+			case ROP_COPY:
+			default:
+				for (i = 0; i < s_pitch * cursor->image.height; i++)
+					src[i] = dat[i] & msk[i];
+				break;
+			}
+
+			fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
+						cursor->image.height);
+
+			bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
+			    ((info->cmap.green[bg_idx] & 0xf8) << 2) |
+			    ((info->cmap.blue[bg_idx] & 0xf8) >> 3) | 1 << 15;
+
+			fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
+			    ((info->cmap.green[fg_idx] & 0xf8) << 2) |
+			    ((info->cmap.blue[fg_idx] & 0xf8) >> 3) | 1 << 15;
+
+			NVLockUnlock(par, 0);
+
+			nvidiafb_load_cursor_image(par, data, bg, fg,
+						   cursor->image.width,
+						   cursor->image.height);
+			kfree(src);
+		}
+	}
+
+	if (cursor->enable)
+		NVShowHideCursor(par, 1);
+
+	return 0;
+}
+
+static int nvidiafb_set_par(struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+
+	NVTRACE_ENTER();
+
+	NVLockUnlock(par, 1);
+	if (!par->FlatPanel || !par->twoHeads)
+		par->FPDither = 0;
+
+	if (par->FPDither < 0) {
+		if ((par->Chipset & 0x0ff0) == 0x0110)
+			par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x0528)
+					   & 0x00010000);
+		else
+			par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x083C) & 1);
+		printk(KERN_INFO PFX "Flat panel dithering %s\n",
+		       par->FPDither ? "enabled" : "disabled");
+	}
+
+	info->fix.visual = (info->var.bits_per_pixel == 8) ?
+	    FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
+
+	nvidia_init_vga(info);
+	nvidia_calc_regs(info);
+
+	NVLockUnlock(par, 0);
+	if (par->twoHeads) {
+		VGA_WR08(par->PCIO, 0x03D4, 0x44);
+		VGA_WR08(par->PCIO, 0x03D5, par->ModeReg.crtcOwner);
+		NVLockUnlock(par, 0);
+	}
+
+	nvidia_screen_off(par, 1);
+
+	nvidia_write_regs(par, &par->ModeReg);
+	NVSetStartAddress(par, 0);
+
+#if defined (__BIG_ENDIAN)
+	/* turn on LFB swapping */
+	{
+		unsigned char tmp;
+
+		VGA_WR08(par->PCIO, 0x3d4, 0x46);
+		tmp = VGA_RD08(par->PCIO, 0x3d5);
+		tmp |= (1 << 7);
+		VGA_WR08(par->PCIO, 0x3d5, tmp);
+    }
+#endif
+
+	info->fix.line_length = (info->var.xres_virtual *
+				 info->var.bits_per_pixel) >> 3;
+	if (info->var.accel_flags) {
+		info->fbops->fb_imageblit = nvidiafb_imageblit;
+		info->fbops->fb_fillrect = nvidiafb_fillrect;
+		info->fbops->fb_copyarea = nvidiafb_copyarea;
+		info->fbops->fb_sync = nvidiafb_sync;
+		info->pixmap.scan_align = 4;
+		info->flags &= ~FBINFO_HWACCEL_DISABLED;
+		info->flags |= FBINFO_READS_FAST;
+		NVResetGraphics(info);
+	} else {
+		info->fbops->fb_imageblit = cfb_imageblit;
+		info->fbops->fb_fillrect = cfb_fillrect;
+		info->fbops->fb_copyarea = cfb_copyarea;
+		info->fbops->fb_sync = NULL;
+		info->pixmap.scan_align = 1;
+		info->flags |= FBINFO_HWACCEL_DISABLED;
+		info->flags &= ~FBINFO_READS_FAST;
+	}
+
+	par->cursor_reset = 1;
+
+	nvidia_screen_off(par, 0);
+
+#ifdef CONFIG_BOOTX_TEXT
+	/* Update debug text engine */
+	btext_update_display(info->fix.smem_start,
+			     info->var.xres, info->var.yres,
+			     info->var.bits_per_pixel, info->fix.line_length);
+#endif
+
+	NVLockUnlock(par, 0);
+	NVTRACE_LEAVE();
+	return 0;
+}
+
+static int nvidiafb_setcolreg(unsigned regno, unsigned red, unsigned green,
+			      unsigned blue, unsigned transp,
+			      struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	int i;
+
+	NVTRACE_ENTER();
+	if (regno >= (1 << info->var.green.length))
+		return -EINVAL;
+
+	if (info->var.grayscale) {
+		/* gray = 0.30*R + 0.59*G + 0.11*B */
+		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
+	}
+
+	if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+		((u32 *) info->pseudo_palette)[regno] =
+		    (regno << info->var.red.offset) |
+		    (regno << info->var.green.offset) |
+		    (regno << info->var.blue.offset);
+	}
+
+	switch (info->var.bits_per_pixel) {
+	case 8:
+		/* "transparent" stuff is completely ignored. */
+		nvidia_write_clut(par, regno, red >> 8, green >> 8, blue >> 8);
+		break;
+	case 16:
+		if (info->var.green.length == 5) {
+			for (i = 0; i < 8; i++) {
+				nvidia_write_clut(par, regno * 8 + i, red >> 8,
+						  green >> 8, blue >> 8);
+			}
+		} else {
+			u8 r, g, b;
+
+			if (regno < 32) {
+				for (i = 0; i < 8; i++) {
+					nvidia_write_clut(par, regno * 8 + i,
+							  red >> 8, green >> 8,
+							  blue >> 8);
+				}
+			}
+
+			nvidia_read_clut(par, regno * 4, &r, &g, &b);
+
+			for (i = 0; i < 4; i++)
+				nvidia_write_clut(par, regno * 4 + i, r,
+						  green >> 8, b);
+		}
+		break;
+	case 32:
+		nvidia_write_clut(par, regno, red >> 8, green >> 8, blue >> 8);
+		break;
+	default:
+		/* do nothing */
+		break;
+	}
+
+	NVTRACE_LEAVE();
+	return 0;
+}
+
+static int nvidiafb_check_var(struct fb_var_screeninfo *var,
+			      struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	int memlen, vramlen, mode_valid = 0;
+	int pitch, err = 0;
+
+	NVTRACE_ENTER();
+
+	var->transp.offset = 0;
+	var->transp.length = 0;
+
+	var->xres &= ~7;
+
+	if (var->bits_per_pixel <= 8)
+		var->bits_per_pixel = 8;
+	else if (var->bits_per_pixel <= 16)
+		var->bits_per_pixel = 16;
+	else
+		var->bits_per_pixel = 32;
+
+	switch (var->bits_per_pixel) {
+	case 8:
+		var->red.offset = 0;
+		var->red.length = 8;
+		var->green.offset = 0;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.offset = 0;
+		var->transp.length = 0;
+		break;
+	case 16:
+		var->green.length = (var->green.length < 6) ? 5 : 6;
+		var->red.length = 5;
+		var->blue.length = 5;
+		var->transp.length = 6 - var->green.length;
+		var->blue.offset = 0;
+		var->green.offset = 5;
+		var->red.offset = 5 + var->green.length;
+		var->transp.offset = (5 + var->red.offset) & 15;
+		break;
+	case 32:		/* RGBA 8888 */
+		var->red.offset = 16;
+		var->red.length = 8;
+		var->green.offset = 8;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.length = 8;
+		var->transp.offset = 24;
+		break;
+	}
+
+	var->red.msb_right = 0;
+	var->green.msb_right = 0;
+	var->blue.msb_right = 0;
+	var->transp.msb_right = 0;
+
+	if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
+	    !info->monspecs.dclkmax || !fb_validate_mode(var, info))
+		mode_valid = 1;
+
+	/* calculate modeline if supported by monitor */
+	if (!mode_valid && info->monspecs.gtf) {
+		if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
+			mode_valid = 1;
+	}
+
+	if (!mode_valid) {
+		const struct fb_videomode *mode;
+
+		mode = fb_find_best_mode(var, &info->modelist);
+		if (mode) {
+			fb_videomode_to_var(var, mode);
+			mode_valid = 1;
+		}
+	}
+
+	if (!mode_valid && info->monspecs.modedb_len)
+		return -EINVAL;
+
+	/*
+	 * If we're on a flat panel, check if the mode is outside of the
+	 * panel dimensions. If so, cap it and try for the next best mode
+	 * before bailing out.
+	 */
+	if (par->fpWidth && par->fpHeight && (par->fpWidth < var->xres ||
+					      par->fpHeight < var->yres)) {
+		const struct fb_videomode *mode;
+
+		var->xres = par->fpWidth;
+		var->yres = par->fpHeight;
+
+		mode = fb_find_best_mode(var, &info->modelist);
+		if (!mode) {
+			printk(KERN_ERR PFX "mode out of range of flat "
+			       "panel dimensions\n");
+			return -EINVAL;
+		}
+
+		fb_videomode_to_var(var, mode);
+	}
+
+	if (var->yres_virtual < var->yres)
+		var->yres_virtual = var->yres;
+
+	if (var->xres_virtual < var->xres)
+		var->xres_virtual = var->xres;
+
+	var->xres_virtual = (var->xres_virtual + 63) & ~63;
+
+	vramlen = info->screen_size;
+	pitch = ((var->xres_virtual * var->bits_per_pixel) + 7) / 8;
+	memlen = pitch * var->yres_virtual;
+
+	if (memlen > vramlen) {
+		var->yres_virtual = vramlen / pitch;
+
+		if (var->yres_virtual < var->yres) {
+			var->yres_virtual = var->yres;
+			var->xres_virtual = vramlen / var->yres_virtual;
+			var->xres_virtual /= var->bits_per_pixel / 8;
+			var->xres_virtual &= ~63;
+			pitch = (var->xres_virtual *
+				 var->bits_per_pixel + 7) / 8;
+			memlen = pitch * var->yres;
+
+			if (var->xres_virtual < var->xres) {
+				printk("nvidiafb: required video memory, "
+				       "%d bytes, for %dx%d-%d (virtual) "
+				       "is out of range\n",
+				       memlen, var->xres_virtual,
+				       var->yres_virtual, var->bits_per_pixel);
+				err = -ENOMEM;
+			}
+		}
+	}
+
+	if (var->accel_flags) {
+		if (var->yres_virtual > 0x7fff)
+			var->yres_virtual = 0x7fff;
+		if (var->xres_virtual > 0x7fff)
+			var->xres_virtual = 0x7fff;
+	}
+
+	var->xres_virtual &= ~63;
+
+	NVTRACE_LEAVE();
+
+	return err;
+}
+
+static int nvidiafb_pan_display(struct fb_var_screeninfo *var,
+				struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	u32 total;
+
+	total = var->yoffset * info->fix.line_length + var->xoffset;
+
+	NVSetStartAddress(par, total);
+
+	return 0;
+}
+
+static int nvidiafb_blank(int blank, struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	unsigned char tmp, vesa;
+
+	tmp = NVReadSeq(par, 0x01) & ~0x20;	/* screen on/off */
+	vesa = NVReadCrtc(par, 0x1a) & ~0xc0;	/* sync on/off */
+
+	NVTRACE_ENTER();
+
+	if (blank)
+		tmp |= 0x20;
+
+	switch (blank) {
+	case FB_BLANK_UNBLANK:
+	case FB_BLANK_NORMAL:
+		break;
+	case FB_BLANK_VSYNC_SUSPEND:
+		vesa |= 0x80;
+		break;
+	case FB_BLANK_HSYNC_SUSPEND:
+		vesa |= 0x40;
+		break;
+	case FB_BLANK_POWERDOWN:
+		vesa |= 0xc0;
+		break;
+	}
+
+	NVWriteSeq(par, 0x01, tmp);
+	NVWriteCrtc(par, 0x1a, vesa);
+
+	NVTRACE_LEAVE();
+
+	return 0;
+}
+
+/*
+ * Because the VGA registers are not mapped linearly in its MMIO space,
+ * restrict VGA register saving and restore to x86 only, where legacy VGA IO
+ * access is legal. Consequently, we must also check if the device is the
+ * primary display.
+ */
+#ifdef CONFIG_X86
+static void save_vga_x86(struct nvidia_par *par)
+{
+	struct resource *res= &par->pci_dev->resource[PCI_ROM_RESOURCE];
+
+	if (res && res->flags & IORESOURCE_ROM_SHADOW) {
+		memset(&par->vgastate, 0, sizeof(par->vgastate));
+		par->vgastate.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS |
+			VGA_SAVE_CMAP;
+		save_vga(&par->vgastate);
+	}
+}
+
+static void restore_vga_x86(struct nvidia_par *par)
+{
+	struct resource *res= &par->pci_dev->resource[PCI_ROM_RESOURCE];
+
+	if (res && res->flags & IORESOURCE_ROM_SHADOW)
+		restore_vga(&par->vgastate);
+}
+#else
+#define save_vga_x86(x) do {} while (0)
+#define restore_vga_x86(x) do {} while (0)
+#endif /* X86 */
+
+static int nvidiafb_open(struct fb_info *info, int user)
+{
+	struct nvidia_par *par = info->par;
+
+	if (!par->open_count) {
+		save_vga_x86(par);
+		nvidia_save_vga(par, &par->initial_state);
+	}
+
+	par->open_count++;
+	return 0;
+}
+
+static int nvidiafb_release(struct fb_info *info, int user)
+{
+	struct nvidia_par *par = info->par;
+	int err = 0;
+
+	if (!par->open_count) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	if (par->open_count == 1) {
+		nvidia_write_regs(par, &par->initial_state);
+		restore_vga_x86(par);
+	}
+
+	par->open_count--;
+done:
+	return err;
+}
+
+static struct fb_ops nvidia_fb_ops = {
+	.owner          = THIS_MODULE,
+	.fb_open        = nvidiafb_open,
+	.fb_release     = nvidiafb_release,
+	.fb_check_var   = nvidiafb_check_var,
+	.fb_set_par     = nvidiafb_set_par,
+	.fb_setcolreg   = nvidiafb_setcolreg,
+	.fb_pan_display = nvidiafb_pan_display,
+	.fb_blank       = nvidiafb_blank,
+	.fb_fillrect    = nvidiafb_fillrect,
+	.fb_copyarea    = nvidiafb_copyarea,
+	.fb_imageblit   = nvidiafb_imageblit,
+	.fb_cursor      = nvidiafb_cursor,
+	.fb_sync        = nvidiafb_sync,
+};
+
+#ifdef CONFIG_PM
+static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t mesg)
+{
+	struct fb_info *info = pci_get_drvdata(dev);
+	struct nvidia_par *par = info->par;
+
+	if (mesg.event == PM_EVENT_PRETHAW)
+		mesg.event = PM_EVENT_FREEZE;
+	console_lock();
+	par->pm_state = mesg.event;
+
+	if (mesg.event & PM_EVENT_SLEEP) {
+		fb_set_suspend(info, 1);
+		nvidiafb_blank(FB_BLANK_POWERDOWN, info);
+		nvidia_write_regs(par, &par->SavedReg);
+		pci_save_state(dev);
+		pci_disable_device(dev);
+		pci_set_power_state(dev, pci_choose_state(dev, mesg));
+	}
+	dev->dev.power.power_state = mesg;
+
+	console_unlock();
+	return 0;
+}
+
+static int nvidiafb_resume(struct pci_dev *dev)
+{
+	struct fb_info *info = pci_get_drvdata(dev);
+	struct nvidia_par *par = info->par;
+
+	console_lock();
+	pci_set_power_state(dev, PCI_D0);
+
+	if (par->pm_state != PM_EVENT_FREEZE) {
+		pci_restore_state(dev);
+
+		if (pci_enable_device(dev))
+			goto fail;
+
+		pci_set_master(dev);
+	}
+
+	par->pm_state = PM_EVENT_ON;
+	nvidiafb_set_par(info);
+	fb_set_suspend (info, 0);
+	nvidiafb_blank(FB_BLANK_UNBLANK, info);
+
+fail:
+	console_unlock();
+	return 0;
+}
+#else
+#define nvidiafb_suspend NULL
+#define nvidiafb_resume NULL
+#endif
+
+static int nvidia_set_fbinfo(struct fb_info *info)
+{
+	struct fb_monspecs *specs = &info->monspecs;
+	struct fb_videomode modedb;
+	struct nvidia_par *par = info->par;
+	int lpitch;
+
+	NVTRACE_ENTER();
+	info->flags = FBINFO_DEFAULT
+	    | FBINFO_HWACCEL_IMAGEBLIT
+	    | FBINFO_HWACCEL_FILLRECT
+	    | FBINFO_HWACCEL_COPYAREA
+	    | FBINFO_HWACCEL_YPAN;
+
+	fb_videomode_to_modelist(info->monspecs.modedb,
+				 info->monspecs.modedb_len, &info->modelist);
+	fb_var_to_videomode(&modedb, &nvidiafb_default_var);
+
+	switch (bpp) {
+	case 0 ... 8:
+		bpp = 8;
+		break;
+	case 9 ... 16:
+		bpp = 16;
+		break;
+	default:
+		bpp = 32;
+		break;
+	}
+
+	if (specs->modedb != NULL) {
+		const struct fb_videomode *mode;
+
+		mode = fb_find_best_display(specs, &info->modelist);
+		fb_videomode_to_var(&nvidiafb_default_var, mode);
+		nvidiafb_default_var.bits_per_pixel = bpp;
+	} else if (par->fpWidth && par->fpHeight) {
+		char buf[16];
+
+		memset(buf, 0, 16);
+		snprintf(buf, 15, "%dx%dMR", par->fpWidth, par->fpHeight);
+		fb_find_mode(&nvidiafb_default_var, info, buf, specs->modedb,
+			     specs->modedb_len, &modedb, bpp);
+	}
+
+	if (mode_option)
+		fb_find_mode(&nvidiafb_default_var, info, mode_option,
+			     specs->modedb, specs->modedb_len, &modedb, bpp);
+
+	info->var = nvidiafb_default_var;
+	info->fix.visual = (info->var.bits_per_pixel == 8) ?
+		FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
+	info->pseudo_palette = par->pseudo_palette;
+	fb_alloc_cmap(&info->cmap, 256, 0);
+	fb_destroy_modedb(info->monspecs.modedb);
+	info->monspecs.modedb = NULL;
+
+	/* maximize virtual vertical length */
+	lpitch = info->var.xres_virtual *
+		((info->var.bits_per_pixel + 7) >> 3);
+	info->var.yres_virtual = info->screen_size / lpitch;
+
+	info->pixmap.scan_align = 4;
+	info->pixmap.buf_align = 4;
+	info->pixmap.access_align = 32;
+	info->pixmap.size = 8 * 1024;
+	info->pixmap.flags = FB_PIXMAP_SYSTEM;
+
+	if (!hwcur)
+	    info->fbops->fb_cursor = NULL;
+
+	info->var.accel_flags = (!noaccel);
+
+	switch (par->Architecture) {
+	case NV_ARCH_04:
+		info->fix.accel = FB_ACCEL_NV4;
+		break;
+	case NV_ARCH_10:
+		info->fix.accel = FB_ACCEL_NV_10;
+		break;
+	case NV_ARCH_20:
+		info->fix.accel = FB_ACCEL_NV_20;
+		break;
+	case NV_ARCH_30:
+		info->fix.accel = FB_ACCEL_NV_30;
+		break;
+	case NV_ARCH_40:
+		info->fix.accel = FB_ACCEL_NV_40;
+		break;
+	}
+
+	NVTRACE_LEAVE();
+
+	return nvidiafb_check_var(&info->var, info);
+}
+
+static u32 nvidia_get_chipset(struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	u32 id = (par->pci_dev->vendor << 16) | par->pci_dev->device;
+
+	printk(KERN_INFO PFX "Device ID: %x \n", id);
+
+	if ((id & 0xfff0) == 0x00f0 ||
+	    (id & 0xfff0) == 0x02e0) {
+		/* pci-e */
+		id = NV_RD32(par->REGS, 0x1800);
+
+		if ((id & 0x0000ffff) == 0x000010DE)
+			id = 0x10DE0000 | (id >> 16);
+		else if ((id & 0xffff0000) == 0xDE100000) /* wrong endian */
+			id = 0x10DE0000 | ((id << 8) & 0x0000ff00) |
+                            ((id >> 8) & 0x000000ff);
+		printk(KERN_INFO PFX "Subsystem ID: %x \n", id);
+	}
+
+	return id;
+}
+
+static u32 nvidia_get_arch(struct fb_info *info)
+{
+	struct nvidia_par *par = info->par;
+	u32 arch = 0;
+
+	switch (par->Chipset & 0x0ff0) {
+	case 0x0100:		/* GeForce 256 */
+	case 0x0110:		/* GeForce2 MX */
+	case 0x0150:		/* GeForce2 */
+	case 0x0170:		/* GeForce4 MX */
+	case 0x0180:		/* GeForce4 MX (8x AGP) */
+	case 0x01A0:		/* nForce */
+	case 0x01F0:		/* nForce2 */
+		arch = NV_ARCH_10;
+		break;
+	case 0x0200:		/* GeForce3 */
+	case 0x0250:		/* GeForce4 Ti */
+	case 0x0280:		/* GeForce4 Ti (8x AGP) */
+		arch = NV_ARCH_20;
+		break;
+	case 0x0300:		/* GeForceFX 5800 */
+	case 0x0310:		/* GeForceFX 5600 */
+	case 0x0320:		/* GeForceFX 5200 */
+	case 0x0330:		/* GeForceFX 5900 */
+	case 0x0340:		/* GeForceFX 5700 */
+		arch = NV_ARCH_30;
+		break;
+	case 0x0040:		/* GeForce 6800 */
+	case 0x00C0:		/* GeForce 6800 */
+	case 0x0120:		/* GeForce 6800 */
+	case 0x0140:		/* GeForce 6600 */
+	case 0x0160:		/* GeForce 6200 */
+	case 0x01D0:		/* GeForce 7200, 7300, 7400 */
+	case 0x0090:		/* GeForce 7800 */
+	case 0x0210:		/* GeForce 6800 */
+	case 0x0220:		/* GeForce 6200 */
+	case 0x0240:		/* GeForce 6100 */
+	case 0x0290:		/* GeForce 7900 */
+	case 0x0390:		/* GeForce 7600 */
+	case 0x03D0:
+		arch = NV_ARCH_40;
+		break;
+	case 0x0020:		/* TNT, TNT2 */
+		arch = NV_ARCH_04;
+		break;
+	default:		/* unknown architecture */
+		break;
+	}
+
+	return arch;
+}
+
+static int nvidiafb_probe(struct pci_dev *pd, const struct pci_device_id *ent)
+{
+	struct nvidia_par *par;
+	struct fb_info *info;
+	unsigned short cmd;
+
+
+	NVTRACE_ENTER();
+	assert(pd != NULL);
+
+	info = framebuffer_alloc(sizeof(struct nvidia_par), &pd->dev);
+
+	if (!info)
+		goto err_out;
+
+	par = info->par;
+	par->pci_dev = pd;
+	info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
+
+	if (info->pixmap.addr == NULL)
+		goto err_out_kfree;
+
+	if (pci_enable_device(pd)) {
+		printk(KERN_ERR PFX "cannot enable PCI device\n");
+		goto err_out_enable;
+	}
+
+	if (pci_request_regions(pd, "nvidiafb")) {
+		printk(KERN_ERR PFX "cannot request PCI regions\n");
+		goto err_out_enable;
+	}
+
+	par->FlatPanel = flatpanel;
+	if (flatpanel == 1)
+		printk(KERN_INFO PFX "flatpanel support enabled\n");
+	par->FPDither = fpdither;
+
+	par->CRTCnumber = forceCRTC;
+	par->FpScale = (!noscale);
+	par->paneltweak = paneltweak;
+	par->reverse_i2c = reverse_i2c;
+
+	/* enable IO and mem if not already done */
+	pci_read_config_word(pd, PCI_COMMAND, &cmd);
+	cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
+	pci_write_config_word(pd, PCI_COMMAND, cmd);
+
+	nvidiafb_fix.mmio_start = pci_resource_start(pd, 0);
+	nvidiafb_fix.smem_start = pci_resource_start(pd, 1);
+	nvidiafb_fix.mmio_len = pci_resource_len(pd, 0);
+
+	par->REGS = ioremap(nvidiafb_fix.mmio_start, nvidiafb_fix.mmio_len);
+
+	if (!par->REGS) {
+		printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
+		goto err_out_free_base0;
+	}
+
+	par->Chipset = nvidia_get_chipset(info);
+	par->Architecture = nvidia_get_arch(info);
+
+	if (par->Architecture == 0) {
+		printk(KERN_ERR PFX "unknown NV_ARCH\n");
+		goto err_out_arch;
+	}
+
+	sprintf(nvidiafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
+
+	if (NVCommonSetup(info))
+		goto err_out_arch;
+
+	par->FbAddress = nvidiafb_fix.smem_start;
+	par->FbMapSize = par->RamAmountKBytes * 1024;
+	if (vram && vram * 1024 * 1024 < par->FbMapSize)
+		par->FbMapSize = vram * 1024 * 1024;
+
+	/* Limit amount of vram to 64 MB */
+	if (par->FbMapSize > 64 * 1024 * 1024)
+		par->FbMapSize = 64 * 1024 * 1024;
+
+	if(par->Architecture >= NV_ARCH_40)
+  	        par->FbUsableSize = par->FbMapSize - (560 * 1024);
+	else
+		par->FbUsableSize = par->FbMapSize - (128 * 1024);
+	par->ScratchBufferSize = (par->Architecture < NV_ARCH_10) ? 8 * 1024 :
+	    16 * 1024;
+	par->ScratchBufferStart = par->FbUsableSize - par->ScratchBufferSize;
+	par->CursorStart = par->FbUsableSize + (32 * 1024);
+
+	info->screen_base = ioremap(nvidiafb_fix.smem_start, par->FbMapSize);
+	info->screen_size = par->FbUsableSize;
+	nvidiafb_fix.smem_len = par->RamAmountKBytes * 1024;
+
+	if (!info->screen_base) {
+		printk(KERN_ERR PFX "cannot ioremap FB base\n");
+		goto err_out_free_base1;
+	}
+
+	par->FbStart = info->screen_base;
+
+#ifdef CONFIG_MTRR
+	if (!nomtrr) {
+		par->mtrr.vram = mtrr_add(nvidiafb_fix.smem_start,
+					  par->RamAmountKBytes * 1024,
+					  MTRR_TYPE_WRCOMB, 1);
+		if (par->mtrr.vram < 0) {
+			printk(KERN_ERR PFX "unable to setup MTRR\n");
+		} else {
+			par->mtrr.vram_valid = 1;
+			/* let there be speed */
+			printk(KERN_INFO PFX "MTRR set to ON\n");
+		}
+	}
+#endif				/* CONFIG_MTRR */
+
+	info->fbops = &nvidia_fb_ops;
+	info->fix = nvidiafb_fix;
+
+	if (nvidia_set_fbinfo(info) < 0) {
+		printk(KERN_ERR PFX "error setting initial video mode\n");
+		goto err_out_iounmap_fb;
+	}
+
+	nvidia_save_vga(par, &par->SavedReg);
+
+	pci_set_drvdata(pd, info);
+
+	if (backlight)
+		nvidia_bl_init(par);
+
+	if (register_framebuffer(info) < 0) {
+		printk(KERN_ERR PFX "error registering nVidia framebuffer\n");
+		goto err_out_iounmap_fb;
+	}
+
+
+	printk(KERN_INFO PFX
+	       "PCI nVidia %s framebuffer (%dMB @ 0x%lX)\n",
+	       info->fix.id,
+	       par->FbMapSize / (1024 * 1024), info->fix.smem_start);
+
+	NVTRACE_LEAVE();
+	return 0;
+
+err_out_iounmap_fb:
+	iounmap(info->screen_base);
+err_out_free_base1:
+	fb_destroy_modedb(info->monspecs.modedb);
+	nvidia_delete_i2c_busses(par);
+err_out_arch:
+	iounmap(par->REGS);
+ err_out_free_base0:
+	pci_release_regions(pd);
+err_out_enable:
+	kfree(info->pixmap.addr);
+err_out_kfree:
+	framebuffer_release(info);
+err_out:
+	return -ENODEV;
+}
+
+static void nvidiafb_remove(struct pci_dev *pd)
+{
+	struct fb_info *info = pci_get_drvdata(pd);
+	struct nvidia_par *par = info->par;
+
+	NVTRACE_ENTER();
+
+	unregister_framebuffer(info);
+
+	nvidia_bl_exit(par);
+
+#ifdef CONFIG_MTRR
+	if (par->mtrr.vram_valid)
+		mtrr_del(par->mtrr.vram, info->fix.smem_start,
+			 info->fix.smem_len);
+#endif				/* CONFIG_MTRR */
+
+	iounmap(info->screen_base);
+	fb_destroy_modedb(info->monspecs.modedb);
+	nvidia_delete_i2c_busses(par);
+	iounmap(par->REGS);
+	pci_release_regions(pd);
+	kfree(info->pixmap.addr);
+	framebuffer_release(info);
+	NVTRACE_LEAVE();
+}
+
+/* ------------------------------------------------------------------------- *
+ *
+ * initialization
+ *
+ * ------------------------------------------------------------------------- */
+
+#ifndef MODULE
+static int nvidiafb_setup(char *options)
+{
+	char *this_opt;
+
+	NVTRACE_ENTER();
+	if (!options || !*options)
+		return 0;
+
+	while ((this_opt = strsep(&options, ",")) != NULL) {
+		if (!strncmp(this_opt, "forceCRTC", 9)) {
+			char *p;
+
+			p = this_opt + 9;
+			if (!*p || !*(++p))
+				continue;
+			forceCRTC = *p - '0';
+			if (forceCRTC < 0 || forceCRTC > 1)
+				forceCRTC = -1;
+		} else if (!strncmp(this_opt, "flatpanel", 9)) {
+			flatpanel = 1;
+		} else if (!strncmp(this_opt, "hwcur", 5)) {
+			hwcur = 1;
+		} else if (!strncmp(this_opt, "noaccel", 6)) {
+			noaccel = 1;
+		} else if (!strncmp(this_opt, "noscale", 7)) {
+			noscale = 1;
+		} else if (!strncmp(this_opt, "reverse_i2c", 11)) {
+			reverse_i2c = 1;
+		} else if (!strncmp(this_opt, "paneltweak:", 11)) {
+			paneltweak = simple_strtoul(this_opt+11, NULL, 0);
+		} else if (!strncmp(this_opt, "vram:", 5)) {
+			vram = simple_strtoul(this_opt+5, NULL, 0);
+		} else if (!strncmp(this_opt, "backlight:", 10)) {
+			backlight = simple_strtoul(this_opt+10, NULL, 0);
+#ifdef CONFIG_MTRR
+		} else if (!strncmp(this_opt, "nomtrr", 6)) {
+			nomtrr = true;
+#endif
+		} else if (!strncmp(this_opt, "fpdither:", 9)) {
+			fpdither = simple_strtol(this_opt+9, NULL, 0);
+		} else if (!strncmp(this_opt, "bpp:", 4)) {
+			bpp = simple_strtoul(this_opt+4, NULL, 0);
+		} else
+			mode_option = this_opt;
+	}
+	NVTRACE_LEAVE();
+	return 0;
+}
+#endif				/* !MODULE */
+
+static struct pci_driver nvidiafb_driver = {
+	.name = "nvidiafb",
+	.id_table = nvidiafb_pci_tbl,
+	.probe    = nvidiafb_probe,
+	.suspend  = nvidiafb_suspend,
+	.resume   = nvidiafb_resume,
+	.remove   = nvidiafb_remove,
+};
+
+/* ------------------------------------------------------------------------- *
+ *
+ * modularization
+ *
+ * ------------------------------------------------------------------------- */
+
+static int nvidiafb_init(void)
+{
+#ifndef MODULE
+	char *option = NULL;
+
+	if (fb_get_options("nvidiafb", &option))
+		return -ENODEV;
+	nvidiafb_setup(option);
+#endif
+	return pci_register_driver(&nvidiafb_driver);
+}
+
+module_init(nvidiafb_init);
+
+static void __exit nvidiafb_exit(void)
+{
+	pci_unregister_driver(&nvidiafb_driver);
+}
+
+module_exit(nvidiafb_exit);
+
+module_param(flatpanel, int, 0);
+MODULE_PARM_DESC(flatpanel,
+		 "Enables experimental flat panel support for some chipsets. "
+		 "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
+module_param(fpdither, int, 0);
+MODULE_PARM_DESC(fpdither,
+		 "Enables dithering of flat panel for 6 bits panels. "
+		 "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
+module_param(hwcur, int, 0);
+MODULE_PARM_DESC(hwcur,
+		 "Enables hardware cursor implementation. (0 or 1=enabled) "
+		 "(default=0)");
+module_param(noaccel, int, 0);
+MODULE_PARM_DESC(noaccel,
+		 "Disables hardware acceleration. (0 or 1=disable) "
+		 "(default=0)");
+module_param(noscale, int, 0);
+MODULE_PARM_DESC(noscale,
+		 "Disables screen scaleing. (0 or 1=disable) "
+		 "(default=0, do scaling)");
+module_param(paneltweak, int, 0);
+MODULE_PARM_DESC(paneltweak,
+		 "Tweak display settings for flatpanels. "
+		 "(default=0, no tweaks)");
+module_param(forceCRTC, int, 0);
+MODULE_PARM_DESC(forceCRTC,
+		 "Forces usage of a particular CRTC in case autodetection "
+		 "fails. (0 or 1) (default=autodetect)");
+module_param(vram, int, 0);
+MODULE_PARM_DESC(vram,
+		 "amount of framebuffer memory to remap in MiB"
+		 "(default=0 - remap entire memory)");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "Specify initial video mode");
+module_param(bpp, int, 0);
+MODULE_PARM_DESC(bpp, "pixel width in bits"
+		 "(default=8)");
+module_param(reverse_i2c, int, 0);
+MODULE_PARM_DESC(reverse_i2c, "reverse port assignment of the i2c bus");
+#ifdef CONFIG_MTRR
+module_param(nomtrr, bool, false);
+MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) "
+		 "(default=0)");
+#endif
+
+MODULE_AUTHOR("Antonino Daplas");
+MODULE_DESCRIPTION("Framebuffer driver for nVidia graphics chipset");
+MODULE_LICENSE("GPL");