diff options
| -rw-r--r-- | drivers/video/s3fb.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c index 946a949f4c7d..2c80246b18b8 100644 --- a/drivers/video/s3fb.c +++ b/drivers/video/s3fb.c @@ -727,7 +727,7 @@ static int s3fb_set_par(struct fb_info *info) if (par->chip == CHIP_988_VIRGE_VX) { vga_wcrt(par->state.vgabase, 0x50, 0x00); vga_wcrt(par->state.vgabase, 0x67, 0x50); - + msleep(10); /* screen remains blank sometimes without this */ vga_wcrt(par->state.vgabase, 0x63, (mode <= 2) ? 0x90 : 0x09); vga_wcrt(par->state.vgabase, 0x66, 0x90); } @@ -901,7 +901,8 @@ static int s3fb_set_par(struct fb_info *info) /* Set Data Transfer Position */ hsstart = ((info->var.xres + info->var.right_margin) * hmul) / 8; - value = clamp((htotal + hsstart + 1) / 2, hsstart + 4, htotal + 1); + /* + 2 is needed for Virge/VX, does no harm on other cards */ + value = clamp((htotal + hsstart + 1) / 2 + 2, hsstart + 4, htotal + 1); svga_wcrt_multi(par->state.vgabase, s3_dtpc_regs, value); memset_io(info->screen_base, 0x00, screen_size); @@ -1216,6 +1217,31 @@ static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_i info->screen_size = 2 << 20; break; } + } else if (par->chip == CHIP_988_VIRGE_VX) { + switch ((regval & 0x60) >> 5) { + case 0: /* 2MB */ + info->screen_size = 2 << 20; + break; + case 1: /* 4MB */ + info->screen_size = 4 << 20; + break; + case 2: /* 6MB */ + info->screen_size = 6 << 20; + break; + case 3: /* 8MB */ + info->screen_size = 8 << 20; + break; + } + /* off-screen memory */ + regval = vga_rcrt(par->state.vgabase, 0x37); + switch ((regval & 0x60) >> 5) { + case 1: /* 4MB */ + info->screen_size -= 4 << 20; + break; + case 2: /* 2MB */ + info->screen_size -= 2 << 20; + break; + } } else info->screen_size = s3_memsizes[regval >> 5] << 10; info->fix.smem_len = info->screen_size; |