Merge branch 'pci-for-jesse' of... (ce675423) · Commits · e / devices / android_kernel_teracube_emerald

arch/x86/pci/mmconfig-shared.c

+48 −17

Original line number	Diff line number	Diff line
		@@ -293,7 +293,7 @@ static acpi_status __init find_mboard_resource(acpi_handle handle, u32 lvl,
		return AE_OK;
		}

		static int __init is_acpi_reserved(unsigned long start, unsigned long end)
		static int __init is_acpi_reserved(u64 start, u64 end, unsigned not_used)
		{
		struct resource mcfg_res;

		@@ -310,6 +310,41 @@ static int __init is_acpi_reserved(unsigned long start, unsigned long end)
		return mcfg_res.flags;
		}

		typedef int (*check_reserved_t)(u64 start, u64 end, unsigned type);

		static int __init is_mmconf_reserved(check_reserved_t is_reserved,
		u64 addr, u64 size, int i,
		typeof(pci_mmcfg_config[0]) *cfg, int with_e820)
		{
		u64 old_size = size;
		int valid = 0;

		while (!is_reserved(addr, addr + size - 1, E820_RESERVED)) {
		size >>= 1;
		if (size < (16UL<<20))
		break;
		}

		if (size >= (16UL<<20) \|\| size == old_size) {
		printk(KERN_NOTICE
		"PCI: MCFG area at %Lx reserved in %s\n",
		addr, with_e820?"E820":"ACPI motherboard resources");
		valid = 1;

		if (old_size != size) {
		/* update end_bus_number */
		cfg->end_bus_number = cfg->start_bus_number + ((size>>20) - 1);
		printk(KERN_NOTICE "PCI: updated MCFG configuration %d: base %lx "
		"segment %hu buses %u - %u\n",
		i, (unsigned long)cfg->address, cfg->pci_segment,
		(unsigned int)cfg->start_bus_number,
		(unsigned int)cfg->end_bus_number);
		}
		}

		return valid;
		}

		static void __init pci_mmcfg_reject_broken(int early)
		{
		typeof(pci_mmcfg_config[0]) *cfg;
		@@ -324,21 +359,22 @@ static void __init pci_mmcfg_reject_broken(int early)

		for (i = 0; i < pci_mmcfg_config_num; i++) {
		int valid = 0;
		u32 size = (cfg->end_bus_number + 1) << 20;
		u64 addr, size;

		cfg = &pci_mmcfg_config[i];
		addr = cfg->start_bus_number;
		addr <<= 20;
		addr += cfg->address;
		size = cfg->end_bus_number + 1 - cfg->start_bus_number;
		size <<= 20;
		printk(KERN_NOTICE "PCI: MCFG configuration %d: base %lx "
		"segment %hu buses %u - %u\n",
		i, (unsigned long)cfg->address, cfg->pci_segment,
		(unsigned int)cfg->start_bus_number,
		(unsigned int)cfg->end_bus_number);

		if (!early &&
		is_acpi_reserved(cfg->address, cfg->address + size - 1)) {
		printk(KERN_NOTICE "PCI: MCFG area at %Lx reserved "
		"in ACPI motherboard resources\n",
		cfg->address);
		valid = 1;
		}
		if (!early)
		valid = is_mmconf_reserved(is_acpi_reserved, addr, size, i, cfg, 0);

		if (valid)
		continue;
		@@ -347,16 +383,11 @@ static void __init pci_mmcfg_reject_broken(int early)
		printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %Lx is not"
		" reserved in ACPI motherboard resources\n",
		cfg->address);

		/* Don't try to do this check unless configuration
		type 1 is available. how about type 2 ?*/
		if (raw_pci_ops && e820_all_mapped(cfg->address,
		cfg->address + size - 1,
		E820_RESERVED)) {
		printk(KERN_NOTICE
		"PCI: MCFG area at %Lx reserved in E820\n",
		cfg->address);
		valid = 1;
		}
		if (raw_pci_ops)
		valid = is_mmconf_reserved(e820_all_mapped, addr, size, i, cfg, 1);

		if (!valid)
		goto reject;

drivers/pci/probe.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -383,6 +383,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
		res->start = base;
		if (!res->end)
		res->end = limit + 0xfff;
		printk(KERN_INFO "PCI: bridge %s io port: [%llx, %llx]\n", pci_name(dev), res->start, res->end);
		}

		res = child->resource[1];
		@@ -394,6 +395,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) \| IORESOURCE_MEM;
		res->start = base;
		res->end = limit + 0xfffff;
		printk(KERN_INFO "PCI: bridge %s 32bit mmio: [%llx, %llx]\n", pci_name(dev), res->start, res->end);
		}

		res = child->resource[2];
		@@ -429,6 +431,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) \| IORESOURCE_MEM \| IORESOURCE_PREFETCH;
		res->start = base;
		res->end = limit + 0xfffff;
		printk(KERN_INFO "PCI: bridge %s %sbit mmio pref: [%llx, %llx]\n", pci_name(dev), (res->flags & PCI_PREF_RANGE_TYPE_64)?"64":"32",res->start, res->end);
		}
		}

drivers/pci/setup-bus.c

+35 −0

Original line number	Diff line number	Diff line
		@@ -530,6 +530,36 @@ void __ref pci_bus_assign_resources(struct pci_bus *bus)
		}
		EXPORT_SYMBOL(pci_bus_assign_resources);

		static void pci_bus_dump_res(struct pci_bus *bus)
		{
		int i;

		for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
		struct resource *res = bus->resource[i];
		if (!res)
		continue;

		printk(KERN_INFO "bus: %02x index %x %s: [%llx, %llx]\n", bus->number, i, (res->flags & IORESOURCE_IO)? "io port":"mmio", res->start, res->end);
		}
		}

		static void pci_bus_dump_resources(struct pci_bus *bus)
		{
		struct pci_bus *b;
		struct pci_dev *dev;


		pci_bus_dump_res(bus);

		list_for_each_entry(dev, &bus->devices, bus_list) {
		b = dev->subordinate;
		if (!b)
		continue;

		pci_bus_dump_resources(b);
		}
		}

		void __init
		pci_assign_unassigned_resources(void)
		{
		@@ -545,4 +575,9 @@ pci_assign_unassigned_resources(void)
		pci_bus_assign_resources(bus);
		pci_enable_bridges(bus);
		}

		/* dump the resource on buses */
		list_for_each_entry(bus, &pci_root_buses, node) {
		pci_bus_dump_resources(bus);
		}
		}