diff options
| -rw-r--r-- | arch/x86/include/asm/e820/api.h | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/resource.c | 14 | ||||
| -rw-r--r-- | arch/x86/pci/acpi.c | 5 |
3 files changed, 17 insertions, 7 deletions
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h index e8f58ddd06d9..5a39ed59b6db 100644 --- a/arch/x86/include/asm/e820/api.h +++ b/arch/x86/include/asm/e820/api.h @@ -4,6 +4,9 @@ #include <asm/e820/types.h> +struct device; +struct resource; + extern struct e820_table *e820_table; extern struct e820_table *e820_table_kexec; extern struct e820_table *e820_table_firmware; @@ -43,6 +46,8 @@ extern void e820__register_nosave_regions(unsigned long limit_pfn); extern int e820__get_entry_type(u64 start, u64 end); +extern void remove_e820_regions(struct device *dev, struct resource *avail); + /* * Returns true iff the specified range [start,end) is completely contained inside * the ISA region. diff --git a/arch/x86/kernel/resource.c b/arch/x86/kernel/resource.c index 30d524adb012..db2b350a37b7 100644 --- a/arch/x86/kernel/resource.c +++ b/arch/x86/kernel/resource.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/dev_printk.h> #include <linux/ioport.h> -#include <linux/printk.h> #include <asm/e820/api.h> static void resource_clip(struct resource *res, resource_size_t start, @@ -24,13 +24,16 @@ static void resource_clip(struct resource *res, resource_size_t start, res->start = end + 1; } -static void remove_e820_regions(struct resource *avail) +void remove_e820_regions(struct device *dev, struct resource *avail) { int i; struct e820_entry *entry; u64 e820_start, e820_end; struct resource orig = *avail; + if (!(avail->flags & IORESOURCE_MEM)) + return; + for (i = 0; i < e820_table->nr_entries; i++) { entry = &e820_table->entries[i]; e820_start = entry->addr; @@ -38,7 +41,7 @@ static void remove_e820_regions(struct resource *avail) resource_clip(avail, e820_start, e820_end); if (orig.start != avail->start || orig.end != avail->end) { - pr_info("clipped %pR to %pR for e820 entry [mem %#010Lx-%#010Lx]\n", + dev_info(dev, "clipped %pR to %pR for e820 entry [mem %#010Lx-%#010Lx]\n", &orig, avail, e820_start, e820_end); orig = *avail; } @@ -52,9 +55,6 @@ void arch_remove_reservations(struct resource *avail) * the low 1MB unconditionally, as this area is needed for some ISA * cards requiring a memory range, e.g. the i82365 PCMCIA controller. */ - if (avail->flags & IORESOURCE_MEM) { + if (avail->flags & IORESOURCE_MEM) resource_clip(avail, BIOS_ROM_BASE, BIOS_ROM_END); - - remove_e820_regions(avail); - } } diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 052f1d78a562..562c81a51ea0 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -8,6 +8,7 @@ #include <linux/pci-acpi.h> #include <asm/numa.h> #include <asm/pci_x86.h> +#include <asm/e820/api.h> struct pci_root_info { struct acpi_pci_root_info common; @@ -299,6 +300,10 @@ static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci) int status; status = acpi_pci_probe_root_resources(ci); + + resource_list_for_each_entry(entry, &ci->resources) + remove_e820_regions(&device->dev, entry->res); + if (pci_use_crs) { resource_list_for_each_entry_safe(entry, tmp, &ci->resources) if (resource_is_pcicfg_ioport(entry->res)) |