diff --git a/arch/x86/include/asm/vga.h b/arch/x86/include/asm/vga.h index c4b9dc2..2723c07 100644 --- a/arch/x86/include/asm/vga.h +++ b/arch/x86/include/asm/vga.h @@ -17,4 +17,10 @@ #define vga_readb(x) (*(x)) #define vga_writeb(x, y) (*(y) = (x)) +#if CONFIG_FB_EFI +#define __ARCH_HAS_VGA_DEFAULT_DEVICE +extern struct pci_dev *vga_default_device(void); +extern void vga_set_default_device(struct pci_dev *pdev); +#endif + #endif /* _ASM_X86_VGA_H */ diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c index c5ffb6a..d5644bb 100644 --- a/arch/x86/video/fbdev.c +++ b/arch/x86/video/fbdev.c @@ -9,24 +9,34 @@ #include #include #include +#include int fb_is_primary_device(struct fb_info *info) { struct device *device = info->device; struct pci_dev *pci_dev = NULL; + struct pci_dev *default_device = vga_default_device(); struct resource *res = NULL; - int retval = 0; if (device) pci_dev = to_pci_dev(device); - if (pci_dev) - res = &pci_dev->resource[PCI_ROM_RESOURCE]; + if (!pci_dev) + return 0; + + if (default_device) { + if (pci_dev == default_device) + return 1; + else + return 0; + } + + res = &pci_dev->resource[PCI_ROM_RESOURCE]; if (res && res->flags & IORESOURCE_ROM_SHADOW) - retval = 1; + return 1; - return retval; + return 0; } EXPORT_SYMBOL(fb_is_primary_device); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index 9a2c805..44c664e 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -28,6 +28,8 @@ #include #include +#include + struct vga_switcheroo_client { struct pci_dev *pdev; struct fb_info *fb_info; @@ -140,7 +142,7 @@ int vga_switcheroo_register_client(struct pci_dev *pdev, vgasr_priv.clients[index].reprobe = reprobe; vgasr_priv.clients[index].can_switch = can_switch; vgasr_priv.clients[index].id = -1; - if (pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW) + if (pdev == vga_default_device()) vgasr_priv.clients[index].active = true; vgasr_priv.registered_clients |= (1 << index); @@ -248,9 +250,8 @@ static int vga_switchto_stage1(struct vga_switcheroo_client *new_client) if (new_client->pwr_state == VGA_SWITCHEROO_OFF) vga_switchon(new_client); - /* swap shadow resource to denote boot VGA device has changed so X starts on new device */ - active->pdev->resource[PCI_ROM_RESOURCE].flags &= ~IORESOURCE_ROM_SHADOW; - new_client->pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; + vga_set_default_device(new_client->pdev); + return 0; } diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 111d956..e223b96 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -136,6 +136,11 @@ struct pci_dev *vga_default_device(void) { return vga_default; } + +void vga_set_default_device(struct pci_dev *pdev) +{ + vga_default = pdev; +} #endif static inline void vga_irq_set_state(struct vga_device *vgadev, bool state) @@ -605,10 +610,12 @@ static bool vga_arbiter_del_pci_device(struct pci_dev *pdev) goto bail; } +#ifndef __ARCH_HAS_VGA_DEFAULT_DEVICE if (vga_default == pdev) { pci_dev_put(vga_default); vga_default = NULL; } +#endif if (vgadev->decodes & (VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM)) vga_decode_count--; diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index a3cd8ca..7dd9f2b 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "pci.h" static int sysfs_initialized; /* = 0 */ @@ -414,6 +415,10 @@ static ssize_t boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pdev = to_pci_dev(dev); + struct pci_dev *vga_dev = vga_default_device(); + + if (vga_dev) + return sprintf(buf, "%u\n", (pdev == vga_dev)); return sprintf(buf, "%u\n", !!(pdev->resource[PCI_ROM_RESOURCE].flags & diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c index 784139a..66ed991 100644 --- a/drivers/video/efifb.c +++ b/drivers/video/efifb.c @@ -18,6 +18,8 @@ static bool request_mem_succeeded = false; +static struct pci_dev *default_vga; + static struct fb_var_screeninfo efifb_defined __devinitdata = { .activate = FB_ACTIVATE_NOW, .height = -1, @@ -298,35 +300,70 @@ static struct fb_ops efifb_ops = { .fb_imageblit = cfb_imageblit, }; +struct pci_dev *vga_default_device(void) +{ + return default_vga; +} + +void vga_set_default_device(struct pci_dev *pdev) +{ + default_vga = pdev; +} + static int __init efifb_setup(char *options) { char *this_opt; int i; + struct pci_dev *dev = NULL; + + if (options && *options) { + while ((this_opt = strsep(&options, ",")) != NULL) { + if (!*this_opt) continue; + + for (i = 0; i < M_UNKNOWN; i++) { + if (!strcmp(this_opt, dmi_list[i].optname) && + dmi_list[i].base != 0) { + screen_info.lfb_base = dmi_list[i].base; + screen_info.lfb_linelength = dmi_list[i].stride; + screen_info.lfb_width = dmi_list[i].width; + screen_info.lfb_height = dmi_list[i].height; + } + } + if (!strncmp(this_opt, "base:", 5)) + screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0); + else if (!strncmp(this_opt, "stride:", 7)) + screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4; + else if (!strncmp(this_opt, "height:", 7)) + screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0); + else if (!strncmp(this_opt, "width:", 6)) + screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); + } + } - if (!options || !*options) - return 0; + for_each_pci_dev(dev) { + int i; - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) continue; + if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) + continue; - for (i = 0; i < M_UNKNOWN; i++) { - if (!strcmp(this_opt, dmi_list[i].optname) && - dmi_list[i].base != 0) { - screen_info.lfb_base = dmi_list[i].base; - screen_info.lfb_linelength = dmi_list[i].stride; - screen_info.lfb_width = dmi_list[i].width; - screen_info.lfb_height = dmi_list[i].height; - } + for (i=0; i < DEVICE_COUNT_RESOURCE; i++) { + resource_size_t start, end; + + if (!(pci_resource_flags(dev, i) & IORESOURCE_MEM)) + continue; + + start = pci_resource_start(dev, i); + end = pci_resource_end(dev, i); + + if (!start || !end) + continue; + + if (screen_info.lfb_base >= start && + (screen_info.lfb_base + screen_info.lfb_size) < end) + default_vga = dev; } - if (!strncmp(this_opt, "base:", 5)) - screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0); - else if (!strncmp(this_opt, "stride:", 7)) - screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4; - else if (!strncmp(this_opt, "height:", 7)) - screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0); - else if (!strncmp(this_opt, "width:", 6)) - screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); } + return 0; } diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h index 9c3120d..7ad7f2a 100644 --- a/include/linux/vgaarb.h +++ b/include/linux/vgaarb.h @@ -31,6 +31,7 @@ #ifndef LINUX_VGA_H #define LINUX_VGA_H +#include