diff options
| -rw-r--r-- | arch/sparc/include/uapi/asm/unistd.h | 3 | ||||
| -rw-r--r-- | arch/sparc/kernel/pci.c | 67 | ||||
| -rw-r--r-- | arch/sparc/kernel/systbls_32.S | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/systbls_64.S | 4 |
4 files changed, 71 insertions, 5 deletions
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index 886cab456e1..c842a89b119 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -413,8 +413,9 @@ #define __NR_renameat2 345 #define __NR_seccomp 346 #define __NR_getrandom 347 +#define __NR_memfd_create 348 -#define NR_syscalls 348 +#define NR_syscalls 349 /* Bitmask values returned from kern_features system call. */ #define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 539babf00bb..b36365f4947 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -432,6 +432,11 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm, node->full_name); return; } + + if (ofpci_verbose) + printk(" Bridge bus range [%u --> %u]\n", + busrange[0], busrange[1]); + ranges = of_get_property(node, "ranges", &len); simba = 0; if (ranges == NULL) { @@ -451,6 +456,10 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm, pci_bus_insert_busn_res(bus, busrange[0], busrange[1]); bus->bridge_ctl = 0; + if (ofpci_verbose) + printk(" Bridge ranges[%p] simba[%d]\n", + ranges, simba); + /* parse ranges property, or cook one up by hand for Simba */ /* PCI #address-cells == 3 and #size-cells == 2 always */ res = &dev->resource[PCI_BRIDGE_RESOURCES]; @@ -468,10 +477,29 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm, } i = 1; for (; len >= 32; len -= 32, ranges += 8) { + u64 start; + + if (ofpci_verbose) + printk(" RAW Range[%08x:%08x:%08x:%08x:%08x:%08x:" + "%08x:%08x]\n", + ranges[0], ranges[1], ranges[2], ranges[3], + ranges[4], ranges[5], ranges[6], ranges[7]); + flags = pci_parse_of_flags(ranges[0]); size = GET_64BIT(ranges, 6); if (flags == 0 || size == 0) continue; + + /* On PCI-Express systems, PCI bridges that have no devices downstream + * have a bogus size value where the first 32-bit cell is 0xffffffff. + * This results in a bogus range where start + size overflows. + * + * Just skip these otherwise the kernel will complain when the resource + * tries to be claimed. + */ + if (size >> 32 == 0xffffffff) + continue; + if (flags & IORESOURCE_IO) { res = bus->resource[0]; if (res->flags) { @@ -490,8 +518,13 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm, } res->flags = flags; - region.start = GET_64BIT(ranges, 1); + region.start = start = GET_64BIT(ranges, 1); region.end = region.start + size - 1; + + if (ofpci_verbose) + printk(" Using flags[%08x] start[%016llx] size[%016llx]\n", + flags, start, size); + pcibios_bus_to_resource(dev->bus, res, ®ion); } after_ranges: @@ -584,6 +617,36 @@ static void pci_bus_register_of_sysfs(struct pci_bus *bus) pci_bus_register_of_sysfs(child_bus); } +static void pci_claim_bus_resources(struct pci_bus *bus) +{ + struct pci_bus *child_bus; + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + int i; + + for (i = 0; i < PCI_NUM_RESOURCES; i++) { + struct resource *r = &dev->resource[i]; + + if (r->parent || !r->start || !r->flags) + continue; + + if (ofpci_verbose) + printk("PCI: Claiming %s: " + "Resource %d: %016llx..%016llx [%x]\n", + pci_name(dev), i, + (unsigned long long)r->start, + (unsigned long long)r->end, + (unsigned int)r->flags); + + pci_claim_resource(dev, i); + } + } + + list_for_each_entry(child_bus, &bus->children, node) + pci_claim_bus_resources(child_bus); +} + struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, struct device *parent) { @@ -614,6 +677,8 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, pci_bus_add_devices(bus); pci_bus_register_of_sysfs(bus); + pci_claim_bus_resources(bus); + return bus; } diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 217893e18d7..6a873c344bc 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -86,4 +86,4 @@ sys_call_table: /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev /*340*/ .long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr -/*345*/ .long sys_renameat2, sys_seccomp, sys_getrandom +/*345*/ .long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index d93b49d1b42..d9151b6490d 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -87,7 +87,7 @@ sys_call_table32: /*330*/ .word compat_sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev /*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr - .word sys32_renameat2, sys_seccomp, sys_getrandom + .word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create #endif /* CONFIG_COMPAT */ @@ -166,4 +166,4 @@ sys_call_table: /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev /*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr - .word sys_renameat2, sys_seccomp, sys_getrandom + .word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create |