diff options
| -rw-r--r-- | drivers/video/nvidia/nvidia.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c index 3a6555a8aaa2..47733f58153b 100644 --- a/drivers/video/nvidia/nvidia.c +++ b/drivers/video/nvidia/nvidia.c @@ -408,6 +408,7 @@ static int hwcur __devinitdata = 0; static int noaccel __devinitdata = 0; static int noscale __devinitdata = 0; static int paneltweak __devinitdata = 0; +static int vram __devinitdata = 0; #ifdef CONFIG_MTRR static int nomtrr __devinitdata = 0; #endif @@ -1180,7 +1181,7 @@ static int nvidiafb_check_var(struct fb_var_screeninfo *var, var->xres_virtual = (var->xres_virtual + 63) & ~63; - vramlen = info->fix.smem_len; + vramlen = info->screen_size; pitch = ((var->xres_virtual * var->bits_per_pixel) + 7) / 8; memlen = pitch * var->yres_virtual; @@ -1343,7 +1344,7 @@ static int __devinit nvidia_set_fbinfo(struct fb_info *info) /* maximize virtual vertical length */ lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3); - info->var.yres_virtual = info->fix.smem_len / lpitch; + info->var.yres_virtual = info->screen_size / lpitch; info->pixmap.scan_align = 4; info->pixmap.buf_align = 4; @@ -1507,12 +1508,20 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd, 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; + par->FbUsableSize = par->FbMapSize - (128 * 1024); par->ScratchBufferSize = (par->Architecture < NV_ARCH_10) ? 8 * 1024 : 16 * 1024; par->ScratchBufferStart = par->FbUsableSize - par->ScratchBufferSize; info->screen_base = ioremap(nvidiafb_fix.smem_start, par->FbMapSize); - nvidiafb_fix.smem_len = par->FbUsableSize; + 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"); @@ -1524,7 +1533,8 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd, #ifdef CONFIG_MTRR if (!nomtrr) { par->mtrr.vram = mtrr_add(nvidiafb_fix.smem_start, - par->FbMapSize, MTRR_TYPE_WRCOMB, 1); + par->RamAmountKBytes * 1024, + MTRR_TYPE_WRCOMB, 1); if (par->mtrr.vram < 0) { printk(KERN_ERR PFX "unable to setup MTRR\n"); } else { @@ -1566,9 +1576,9 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd, 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_free_base1: iounmap(par->REGS); err_out_free_base0: pci_release_regions(pd); @@ -1645,6 +1655,8 @@ static int __devinit nvidiafb_setup(char *options) noscale = 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); #ifdef CONFIG_MTRR } else if (!strncmp(this_opt, "nomtrr", 6)) { nomtrr = 1; @@ -1716,6 +1728,10 @@ 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)"); #ifdef CONFIG_MTRR module_param(nomtrr, bool, 0); MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) " |