From a6bb7929677aacfce3f864c3cdacaa7d527945d5 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 17 May 2012 13:14:08 +0300 Subject: KVM: ia64: Mark ia64 KVM as BROKEN Practically all patches to ia64 KVM are build fixes; numerous warnings remain; the last patch from the maintainer was committed more than three years ago. It is clear that no one is using this thing. Mark as BROKEN to ensure people don't get hit by pointless build problems. Signed-off-by: Avi Kivity Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/ia64/kvm/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig index 9806e55f91be..df5351e3eed7 100644 --- a/arch/ia64/kvm/Kconfig +++ b/arch/ia64/kvm/Kconfig @@ -19,6 +19,7 @@ if VIRTUALIZATION config KVM tristate "Kernel-based Virtual Machine (KVM) support" + depends on BROKEN depends on HAVE_KVM && MODULES && EXPERIMENTAL # for device assignment: depends on PCI -- cgit v1.2.3 From 459165e25030c0023cb54f73c14261a3d2f4a244 Mon Sep 17 00:00:00 2001 From: Yong Zhang Date: Tue, 29 May 2012 15:16:02 +0800 Subject: ia64: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() ipi_call_lock/unlock() lock resp. unlock call_function.lock. This lock protects only the call_function data structure itself, but it's completely unrelated to cpu_online_mask. The mask to which the IPIs are sent is calculated before call_function.lock is taken in smp_call_function_many(), so the locking around set_cpu_online() is pointless and can be removed. [ tglx: Massaged changelog ] Signed-off-by: Yong Zhang Cc: ralf@linux-mips.org Cc: sshtylyov@mvista.com Cc: david.daney@cavium.com Cc: nikunj@linux.vnet.ibm.com Cc: paulmck@linux.vnet.ibm.com Cc: axboe@kernel.dk Cc: peterz@infradead.org Cc: Tony Luck Cc: Fenghua Yu Cc: linux-ia64@vger.kernel.org Link: http://lkml.kernel.org/r/1338275765-3217-8-git-send-email-yong.zhang0@gmail.com Acked-by: Srivatsa S. Bhat Acked-by: Peter Zijlstra Signed-off-by: Thomas Gleixner --- arch/ia64/kernel/smpboot.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 1113b8aba07f..963d2db53bfa 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -382,7 +382,6 @@ smp_callin (void) set_numa_node(cpu_to_node_map[cpuid]); set_numa_mem(local_memory_node(cpu_to_node_map[cpuid])); - ipi_call_lock_irq(); spin_lock(&vector_lock); /* Setup the per cpu irq handling data structures */ __setup_vector_irq(cpuid); @@ -390,7 +389,6 @@ smp_callin (void) set_cpu_online(cpuid, true); per_cpu(cpu_state, cpuid) = CPU_ONLINE; spin_unlock(&vector_lock); - ipi_call_unlock_irq(); smp_setup_percpu_timer(); -- cgit v1.2.3 From b918c62e086b2130a7bae44110ca516ef10bfe5a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 17 May 2012 18:51:11 -0700 Subject: PCI: replace struct pci_bus secondary/subordinate with busn_res Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas --- arch/alpha/kernel/pci.c | 2 +- arch/arm/kernel/bios32.c | 2 +- arch/ia64/pci/pci.c | 2 +- arch/microblaze/pci/pci-common.c | 4 +-- arch/mips/pci/pci.c | 2 +- arch/powerpc/kernel/pci-common.c | 6 ++-- arch/powerpc/kernel/pci_64.c | 2 +- arch/powerpc/kernel/pci_of_scan.c | 2 +- arch/powerpc/platforms/powernv/pci-ioda.c | 8 ++--- arch/powerpc/platforms/pseries/pci_dlpar.c | 2 +- arch/sh/drivers/pci/pci.c | 2 +- arch/sparc/kernel/pci.c | 6 ++-- arch/tile/kernel/pci.c | 4 +-- arch/x86/pci/acpi.c | 2 +- arch/xtensa/kernel/pci.c | 2 +- drivers/iommu/intel-iommu.c | 2 +- drivers/net/ethernet/broadcom/tg3.c | 4 +-- drivers/parisc/dino.c | 10 +++--- drivers/parisc/iosapic.c | 2 +- drivers/parisc/lba_pci.c | 22 ++++++------ drivers/pci/hotplug/acpiphp_glue.c | 8 ++--- drivers/pci/hotplug/cpci_hotplug_pci.c | 6 ++-- drivers/pci/hotplug/pciehp_pci.c | 4 +-- drivers/pci/hotplug/shpchp_pci.c | 6 ++-- drivers/pci/hotplug/shpchp_sysfs.c | 6 ++-- drivers/pci/iov.c | 4 +-- drivers/pci/pci.c | 2 +- drivers/pci/probe.c | 58 +++++++++++++++--------------- drivers/pci/setup-bus.c | 24 ++++++------- drivers/pcmcia/cardbus.c | 2 +- drivers/pcmcia/yenta_socket.c | 26 +++++++------- 31 files changed, 117 insertions(+), 117 deletions(-) (limited to 'arch/ia64') diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 1a629636cc16..53229a496311 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -359,7 +359,7 @@ common_init_pci(void) hose, &resources); hose->bus = bus; hose->need_domain_info = need_domain_info; - next_busno = bus->subordinate + 1; + next_busno = bus->busn_res.end + 1; /* Don't allow 8-bit bus number overflow inside the hose - reserve some space for bridges. */ if (next_busno > 224) { diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 25552508c3fd..f07710849b58 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -461,7 +461,7 @@ static void __init pcibios_init_hw(struct hw_pci *hw, struct list_head *head) if (!sys->bus) panic("PCI: unable to scan bus!"); - busnr = sys->bus->subordinate + 1; + busnr = sys->bus->busn_res.end + 1; list_add(&sys->node, head); } else { diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 524df4295c90..3ca9bed7dc50 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -384,7 +384,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root) return NULL; } - pbus->subordinate = pci_scan_child_bus(pbus); + pbus->busn_res.end = pci_scan_child_bus(pbus); return pbus; out3: diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index ed22bfc5db14..9b32483cd0c0 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1506,10 +1506,10 @@ static void __devinit pcibios_scan_phb(struct pci_controller *hose) pci_free_resource_list(&resources); return; } - bus->secondary = hose->first_busno; + bus->busn_res.start = hose->first_busno; hose->bus = bus; - hose->last_busno = bus->subordinate; + hose->last_busno = bus->busn_res.end; } static int __init pcibios_init(void) diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 271e8c4a54c7..0a9bf778edb5 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -102,7 +102,7 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose) need_domain_info = need_domain_info || hose->index; hose->need_domain_info = need_domain_info; if (bus) { - next_busno = bus->subordinate + 1; + next_busno = bus->busn_res.end + 1; /* Don't allow 8-bit bus number overflow inside the hose - reserve some space for bridges. */ if (next_busno > 224) { diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 8e78e93c8185..3532b535698a 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1646,7 +1646,7 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) pci_free_resource_list(&resources); return; } - bus->secondary = hose->first_busno; + bus->busn_res.start = hose->first_busno; hose->bus = bus; /* Get probe mode and perform scan */ @@ -1655,12 +1655,12 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) mode = ppc_md.pci_probe_mode(bus); pr_debug(" probe mode: %d\n", mode); if (mode == PCI_PROBE_DEVTREE) { - bus->subordinate = hose->last_busno; + bus->busn_res.end = hose->last_busno; of_scan_bus(node, bus); } if (mode == PCI_PROBE_NORMAL) - hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); + hose->last_busno = bus->busn_res.end = pci_scan_child_bus(bus); /* Platform gets a chance to do some global fixups before * we proceed to resource allocation diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 94a54f61d341..4ff190ff24a0 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -236,7 +236,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus, for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) { bus = pci_bus_b(ln); - if (in_bus >= bus->number && in_bus <= bus->subordinate) + if (in_bus >= bus->number && in_bus <= bus->busn_res.end) break; bus = NULL; } diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 89dde171a6fa..a36281aa98f3 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -240,7 +240,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev) } bus->primary = dev->bus->number; - bus->subordinate = busrange[1]; + bus->busn_res.end = busrange[1]; bus->bridge_ctl = 0; /* parse ranges property */ diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index fbdd74dac3ac..9cda6a1ad0cf 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -589,7 +589,7 @@ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb, dcomp = OPAL_IGNORE_RID_DEVICE_NUMBER; fcomp = OPAL_IGNORE_RID_FUNCTION_NUMBER; parent = pe->pbus->self; - count = pe->pbus->subordinate - pe->pbus->secondary + 1; + count = pe->pbus->busn_res.end - pe->pbus->busn_res.start + 1; switch(count) { case 1: bcomp = OpalPciBusAll; break; case 2: bcomp = OpalPciBus7Bits; break; @@ -816,11 +816,11 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, pe->pdev = NULL; pe->tce32_seg = -1; pe->mve_number = -1; - pe->rid = bus->secondary << 8; + pe->rid = bus->busn_res.start << 8; pe->dma_weight = 0; - pe_info(pe, "Secondary busses %d..%d associated with PE\n", - bus->secondary, bus->subordinate); + pe_info(pe, "Secondary busses %pR associated with PE\n", + &bus->busn_res); if (pnv_ioda_configure_pe(phb, pe)) { /* XXX What do we do here ? */ diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 8b7bafa489c2..3ccebc83dc02 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -121,7 +121,7 @@ void pcibios_add_pci_devices(struct pci_bus * bus) if (!num) return; pcibios_setup_bus_devices(bus); - max = bus->secondary; + max = bus->busn_res.start; for (pass=0; pass < 2; pass++) list_for_each_entry(dev, &bus->devices, bus_list) { if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 9d10a3cb8797..43068dcb451c 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -59,7 +59,7 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose) need_domain_info = need_domain_info || hose->index; hose->need_domain_info = need_domain_info; if (bus) { - next_busno = bus->subordinate + 1; + next_busno = bus->busn_res.end + 1; /* Don't allow 8-bit bus number overflow inside the hose - reserve some space for bridges. */ if (next_busno > 224) { diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index fdaf21811670..c85bfd788f74 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -535,7 +535,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, } bus->primary = dev->bus->number; - bus->subordinate = busrange[1]; + bus->busn_res.end = busrange[1]; bus->bridge_ctl = 0; /* parse ranges property, or cook one up by hand for Simba */ @@ -693,8 +693,8 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, pci_free_resource_list(&resources); return NULL; } - bus->secondary = pbm->pci_first_busno; - bus->subordinate = pbm->pci_last_busno; + bus->busn_res.start = pbm->pci_first_busno; + bus->busn_res.end = pbm->pci_last_busno; pci_of_scan_bus(pbm, node, bus); pci_bus_add_devices(bus); diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index b56d12bf5900..54cc8d77c90c 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -329,7 +329,7 @@ int __init pcibios_init(void) */ bus = pci_scan_bus(0, controller->ops, controller); controller->root_bus = bus; - controller->last_busno = bus->subordinate; + controller->last_busno = bus->busn_res.end; } } @@ -366,7 +366,7 @@ int __init pcibios_init(void) */ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && (PCI_SLOT(dev->devfn) == 0)) { - next_bus = dev->subordinate; + next_bus = dev->busn_res.end; controllers[i].mem_resources[0] = *next_bus->resource[0]; controllers[i].mem_resources[1] = diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index fc09c2754e08..350fe63c8a42 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -440,7 +440,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); if (bus) { - bus->subordinate = pci_scan_child_bus(bus); + bus->busn_res.end = pci_scan_child_bus(bus); pci_set_host_bridge_release( to_pci_host_bridge(bus->bridge), release_pci_root_info, info); diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index eb30e356f5be..9c57c1e6870c 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -187,7 +187,7 @@ static int __init pcibios_init(void) bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, pci_ctrl->ops, pci_ctrl, &resources); pci_ctrl->bus = bus; - pci_ctrl->last_busno = bus->subordinate; + pci_ctrl->last_busno = bus->busn_res.end; if (next_busno <= pci_ctrl->last_busno) next_busno = pci_ctrl->last_busno+1; } diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index b12af2ff8c54..2fb7d1598a68 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -661,7 +661,7 @@ static struct intel_iommu *device_to_iommu(int segment, u8 bus, u8 devfn) if (drhd->devices[i] && drhd->devices[i]->subordinate && drhd->devices[i]->subordinate->number <= bus && - drhd->devices[i]->subordinate->subordinate >= bus) + drhd->devices[i]->subordinate->busn_res.end >= bus) return drhd->iommu; } diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index edeeb516807a..09fa3c687a1f 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -14168,7 +14168,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) if (bridge->subordinate && (bridge->subordinate->number <= tp->pdev->bus->number) && - (bridge->subordinate->subordinate >= + (bridge->subordinate->busn_res.end >= tp->pdev->bus->number)) { tg3_flag_set(tp, 5701_DMA_BUG); pci_dev_put(bridge); @@ -14196,7 +14196,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) if (bridge && bridge->subordinate && (bridge->subordinate->number <= tp->pdev->bus->number) && - (bridge->subordinate->subordinate >= + (bridge->subordinate->busn_res.end >= tp->pdev->bus->number)) { tg3_flag_set(tp, 40BIT_DMA_BUG); pci_dev_put(bridge); diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index 432d4bbcc62a..70517b0f94e6 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -174,7 +174,7 @@ static int dino_cfg_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { struct dino_device *d = DINO_DEV(parisc_walk_tree(bus->bridge)); - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 v = DINO_CFG_TOK(local_bus, devfn, where & ~3); void __iomem *base_addr = d->hba.base_addr; unsigned long flags; @@ -209,7 +209,7 @@ static int dino_cfg_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { struct dino_device *d = DINO_DEV(parisc_walk_tree(bus->bridge)); - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 v = DINO_CFG_TOK(local_bus, devfn, where & ~3); void __iomem *base_addr = d->hba.base_addr; unsigned long flags; @@ -554,7 +554,7 @@ dino_fixup_bus(struct pci_bus *bus) struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge)); DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n", - __func__, bus, bus->secondary, + __func__, bus, bus->busn_res.start, bus->bridge->platform_data); /* Firmware doesn't set up card-mode dino, so we have to */ @@ -998,12 +998,12 @@ static int __init dino_probe(struct parisc_device *dev) return 0; } - bus->subordinate = pci_scan_child_bus(bus); + bus->busn_res.end = pci_scan_child_bus(bus); /* This code *depends* on scanning being single threaded * if it isn't, this global bus number count will fail */ - dino_current_bus = bus->subordinate + 1; + dino_current_bus = bus->busn_res.end + 1; pci_bus_assign_resources(bus); pci_bus_add_devices(bus); return 0; diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c index 1f9e9fefb8e7..83380c8fcb6b 100644 --- a/drivers/parisc/iosapic.c +++ b/drivers/parisc/iosapic.c @@ -532,7 +532,7 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev) intr_slot = PCI_SLOT(pcidev->devfn); } DBG_IRT("iosapic_xlate_pin: bus %d slot %d pin %d\n", - pcidev->bus->secondary, intr_slot, intr_pin); + pcidev->bus->busn_res.start, intr_slot, intr_pin); return irt_find_irqline(isi, intr_slot, intr_pin); } diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 052fa230bc77..cd8f9ce8720f 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -189,8 +189,8 @@ lba_dump_res(struct resource *r, int d) static int lba_device_present(u8 bus, u8 dfn, struct lba_device *d) { - u8 first_bus = d->hba.hba_bus->secondary; - u8 last_sub_bus = d->hba.hba_bus->subordinate; + u8 first_bus = d->hba.hba_bus->busn_res.start; + u8 last_sub_bus = d->hba.hba_bus->busn_res.end; if ((bus < first_bus) || (bus > last_sub_bus) || @@ -364,7 +364,7 @@ lba_rd_cfg(struct lba_device *d, u32 tok, u8 reg, u32 size) static int elroy_cfg_read(struct pci_bus *bus, unsigned int devfn, int pos, int size, u32 *data) { struct lba_device *d = LBA_DEV(parisc_walk_tree(bus->bridge)); - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 tok = LBA_CFG_TOK(local_bus, devfn); void __iomem *data_reg = d->hba.base_addr + LBA_PCI_CFG_DATA; @@ -380,7 +380,7 @@ static int elroy_cfg_read(struct pci_bus *bus, unsigned int devfn, int pos, int return 0; } - if (LBA_SKIP_PROBE(d) && !lba_device_present(bus->secondary, devfn, d)) { + if (LBA_SKIP_PROBE(d) && !lba_device_present(bus->busn_res.start, devfn, d)) { DBG_CFG("%s(%x+%2x) -> -1 (b)\n", __func__, tok, pos); /* either don't want to look or know device isn't present. */ *data = ~0U; @@ -431,7 +431,7 @@ lba_wr_cfg(struct lba_device *d, u32 tok, u8 reg, u32 data, u32 size) static int elroy_cfg_write(struct pci_bus *bus, unsigned int devfn, int pos, int size, u32 data) { struct lba_device *d = LBA_DEV(parisc_walk_tree(bus->bridge)); - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 tok = LBA_CFG_TOK(local_bus,devfn); if ((pos > 255) || (devfn > 255)) @@ -444,7 +444,7 @@ static int elroy_cfg_write(struct pci_bus *bus, unsigned int devfn, int pos, int return 0; } - if (LBA_SKIP_PROBE(d) && (!lba_device_present(bus->secondary, devfn, d))) { + if (LBA_SKIP_PROBE(d) && (!lba_device_present(bus->busn_res.start, devfn, d))) { DBG_CFG("%s(%x+%2x) = 0x%x (b)\n", __func__, tok, pos,data); return 1; /* New Workaround */ } @@ -481,7 +481,7 @@ static struct pci_ops elroy_cfg_ops = { static int mercury_cfg_read(struct pci_bus *bus, unsigned int devfn, int pos, int size, u32 *data) { struct lba_device *d = LBA_DEV(parisc_walk_tree(bus->bridge)); - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 tok = LBA_CFG_TOK(local_bus, devfn); void __iomem *data_reg = d->hba.base_addr + LBA_PCI_CFG_DATA; @@ -514,7 +514,7 @@ static int mercury_cfg_write(struct pci_bus *bus, unsigned int devfn, int pos, i { struct lba_device *d = LBA_DEV(parisc_walk_tree(bus->bridge)); void __iomem *data_reg = d->hba.base_addr + LBA_PCI_CFG_DATA; - u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary; + u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start; u32 tok = LBA_CFG_TOK(local_bus,devfn); if ((pos > 255) || (devfn > 255)) @@ -636,7 +636,7 @@ lba_fixup_bus(struct pci_bus *bus) struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->bridge)); DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n", - bus, bus->secondary, bus->bridge->platform_data); + bus, (int)bus->busn_res.start, bus->bridge->platform_data); /* ** Properly Setup MMIO resources for this bus. @@ -1511,7 +1511,7 @@ lba_driver_probe(struct parisc_device *dev) return 0; } - lba_bus->subordinate = pci_scan_child_bus(lba_bus); + lba_bus->busn_res.end = pci_scan_child_bus(lba_bus); /* This is in lieu of calling pci_assign_unassigned_resources() */ if (is_pdc_pat()) { @@ -1541,7 +1541,7 @@ lba_driver_probe(struct parisc_device *dev) lba_dev->flags |= LBA_FLAG_SKIP_PROBE; } - lba_next_bus = lba_bus->subordinate + 1; + lba_next_bus = lba_res->busn_res.end + 1; pci_bus_add_devices(lba_bus); /* Whew! Finally done! Tell services we got this one covered. */ diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 806c44fa645a..62d0ae4dfcad 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -100,11 +100,11 @@ static int post_dock_fixups(struct notifier_block *nb, unsigned long val, PCI_PRIMARY_BUS, &buses); - if (((buses >> 8) & 0xff) != bus->secondary) { + if (((buses >> 8) & 0xff) != bus->busn_res.start) { buses = (buses & 0xff000000) | ((unsigned int)(bus->primary) << 0) - | ((unsigned int)(bus->secondary) << 8) - | ((unsigned int)(bus->subordinate) << 16); + | ((unsigned int)(bus->busn_res.start) << 8) + | ((unsigned int)(bus->busn_res.end) << 16); pci_write_config_dword(bus->self, PCI_PRIMARY_BUS, buses); } return NOTIFY_OK; @@ -692,7 +692,7 @@ static unsigned char acpiphp_max_busnr(struct pci_bus *bus) * bus->subordinate value because it could have * padding in it. */ - max = bus->secondary; + max = bus->busn_res.start; list_for_each(tmp, &bus->children) { n = pci_bus_max_busnr(pci_bus_b(tmp)); diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index ae853ccd0cd5..42f3a61db87c 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -292,8 +292,8 @@ int __ref cpci_configure_slot(struct slot *slot) (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) { /* Find an unused bus number for the new bridge */ struct pci_bus *child; - unsigned char busnr, start = parent->secondary; - unsigned char end = parent->subordinate; + unsigned char busnr, start = parent->busn_res.start; + unsigned char end = parent->busn_res.end; for (busnr = start; busnr <= end; busnr++) { if (!pci_find_bus(pci_domain_nr(parent), @@ -312,7 +312,7 @@ int __ref cpci_configure_slot(struct slot *slot) pci_dev_put(dev); continue; } - child->subordinate = pci_do_scan_bus(child); + child->busn_res.end = pci_do_scan_bus(child); pci_bus_size_bridges(child); } pci_dev_put(dev); diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index 47d9dc06b109..b898f06b588d 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -37,8 +37,8 @@ static int __ref pciehp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; - int pass, busnr, start = parent->secondary; - int end = parent->subordinate; + int pass, busnr, start = parent->busn_res.start; + int end = parent->busn_res.end; for (busnr = start; busnr <= end; busnr++) { if (!pci_find_bus(pci_domain_nr(parent), busnr)) diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c index df7e4bfadae3..d021eb031b3c 100644 --- a/drivers/pci/hotplug/shpchp_pci.c +++ b/drivers/pci/hotplug/shpchp_pci.c @@ -64,8 +64,8 @@ int __ref shpchp_configure_device(struct slot *p_slot) (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) { /* Find an unused bus number for the new bridge */ struct pci_bus *child; - unsigned char busnr, start = parent->secondary; - unsigned char end = parent->subordinate; + unsigned char busnr, start = parent->busn_res.start; + unsigned char end = parent->busn_res.end; for (busnr = start; busnr <= end; busnr++) { if (!pci_find_bus(pci_domain_nr(parent), busnr)) @@ -84,7 +84,7 @@ int __ref shpchp_configure_device(struct slot *p_slot) pci_dev_put(dev); continue; } - child->subordinate = pci_do_scan_bus(child); + child->busn_res.end = pci_do_scan_bus(child); pci_bus_size_bridges(child); } pci_configure_slot(dev); diff --git a/drivers/pci/hotplug/shpchp_sysfs.c b/drivers/pci/hotplug/shpchp_sysfs.c index efa30da1ae8f..eeb23ceae4a8 100644 --- a/drivers/pci/hotplug/shpchp_sysfs.c +++ b/drivers/pci/hotplug/shpchp_sysfs.c @@ -73,13 +73,13 @@ static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, cha } } out += sprintf(out, "Free resources: bus numbers\n"); - for (busnr = bus->secondary; busnr <= bus->subordinate; busnr++) { + for (busnr = bus->busn_res.start; busnr <= bus->busn_res.end; busnr++) { if (!pci_find_bus(pci_domain_nr(bus), busnr)) break; } - if (busnr < bus->subordinate) + if (busnr < bus->busn_res.end) out += sprintf(out, "start = %8.8x, length = %8.8x\n", - busnr, (bus->subordinate - busnr)); + busnr, (int)(bus->busn_res.end - busnr)); return out - buf; } diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 6554e1a0f634..e873060fb35b 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -47,7 +47,7 @@ static struct pci_bus *virtfn_add_bus(struct pci_bus *bus, int busnr) if (!child) return NULL; - child->subordinate = busnr; + child->busn_res.end = busnr; child->dev.parent = bus->bridge; rc = pci_bus_add_child(child); if (rc) { @@ -327,7 +327,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) iov->offset = offset; iov->stride = stride; - if (virtfn_bus(dev, nr_virtfn - 1) > dev->bus->subordinate) { + if (virtfn_bus(dev, nr_virtfn - 1) > dev->bus->busn_res.end) { dev_err(&dev->dev, "SR-IOV: bus number out of range\n"); return -ENOMEM; } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 447e83472c01..aeda6e9c245c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -110,7 +110,7 @@ unsigned char pci_bus_max_busnr(struct pci_bus* bus) struct list_head *tmp; unsigned char max, n; - max = bus->subordinate; + max = bus->busn_res.end; list_for_each(tmp, &bus->children) { n = pci_bus_max_busnr(pci_bus_b(tmp)); if(n > max) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 658ac977cb56..651b096134dc 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -381,8 +381,8 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) if (pci_is_root_bus(child)) /* It's a host bus, nothing to read */ return; - dev_info(&dev->dev, "PCI bridge to [bus %02x-%02x]%s\n", - child->secondary, child->subordinate, + dev_info(&dev->dev, "PCI bridge to %pR%s\n", + &child->busn_res, dev->transparent ? " (subtractive decode)" : ""); pci_bus_remove_resources(child); @@ -599,9 +599,9 @@ static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent, * Set up the primary, secondary and subordinate * bus numbers. */ - child->number = child->secondary = busnr; - child->primary = parent->secondary; - child->subordinate = 0xff; + child->number = child->busn_res.start = busnr; + child->primary = parent->busn_res.start; + child->busn_res.end = 0xff; if (!bridge) return child; @@ -643,8 +643,8 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max) if (!pcibios_assign_all_busses()) return; - while (parent->parent && parent->subordinate < max) { - parent->subordinate = max; + while (parent->parent && parent->busn_res.end < max) { + parent->busn_res.end = max; pci_write_config_byte(parent->self, PCI_SUBORDINATE_BUS, max); parent = parent->parent; } @@ -718,15 +718,15 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, if (!child) goto out; child->primary = primary; - child->subordinate = subordinate; + child->busn_res.end = subordinate; child->bridge_ctl = bctl; } cmax = pci_scan_child_bus(child); if (cmax > max) max = cmax; - if (child->subordinate > max) - max = child->subordinate; + if (child->busn_res.end > max) + max = child->busn_res.end; } else { /* * We need to assign a number to this bus which we always @@ -759,8 +759,8 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, } buses = (buses & 0xff000000) | ((unsigned int)(child->primary) << 0) - | ((unsigned int)(child->secondary) << 8) - | ((unsigned int)(child->subordinate) << 16); + | ((unsigned int)(child->busn_res.start) << 8) + | ((unsigned int)(child->busn_res.end) << 16); /* * yenta.c forces a secondary latency timer of 176. @@ -805,8 +805,8 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, break; while (parent->parent) { if ((!pcibios_assign_all_busses()) && - (parent->subordinate > max) && - (parent->subordinate <= max+i)) { + (parent->busn_res.end > max) && + (parent->busn_res.end <= max+i)) { j = 1; } parent = parent->parent; @@ -827,7 +827,7 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, /* * Set the subordinate bus number to its real value. */ - child->subordinate = max; + child->busn_res.end = max; pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, max); } @@ -837,19 +837,19 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, /* Has only triggered on CardBus, fixup is in yenta_socket */ while (bus->parent) { - if ((child->subordinate > bus->subordinate) || - (child->number > bus->subordinate) || + if ((child->busn_res.end > bus->busn_res.end) || + (child->number > bus->busn_res.end) || (child->number < bus->number) || - (child->subordinate < bus->number)) { - dev_info(&child->dev, "[bus %02x-%02x] %s " - "hidden behind%s bridge %s [bus %02x-%02x]\n", - child->number, child->subordinate, - (bus->number > child->subordinate && - bus->subordinate < child->number) ? + (child->busn_res.end < bus->number)) { + dev_info(&child->dev, "%pR %s " + "hidden behind%s bridge %s %pR\n", + &child->busn_res, + (bus->number > child->busn_res.end && + bus->busn_res.end < child->number) ? "wholly" : "partially", bus->self->transparent ? " transparent" : "", dev_name(&bus->dev), - bus->number, bus->subordinate); + &bus->busn_res); } bus = bus->parent; } @@ -1548,7 +1548,7 @@ EXPORT_SYMBOL_GPL(pcie_bus_configure_settings); unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus) { - unsigned int devfn, pass, max = bus->secondary; + unsigned int devfn, pass, max = bus->busn_res.start; struct pci_dev *dev; dev_dbg(&bus->dev, "scanning bus\n"); @@ -1642,7 +1642,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, /* Create legacy_io and legacy_mem files for this bus */ pci_create_legacy_files(b); - b->number = b->secondary = bus; + b->number = b->busn_res.start = bus; if (parent) dev_info(parent, "PCI host bridge to bus %s\n", dev_name(&b->dev)); @@ -1693,7 +1693,7 @@ struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, if (!b) return NULL; - b->subordinate = pci_scan_child_bus(b); + b->busn_res.end = pci_scan_child_bus(b); pci_bus_add_devices(b); return b; } @@ -1710,7 +1710,7 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, pci_add_resource(&resources, &iomem_resource); b = pci_create_root_bus(parent, bus, ops, sysdata, &resources); if (b) - b->subordinate = pci_scan_child_bus(b); + b->busn_res.end = pci_scan_child_bus(b); else pci_free_resource_list(&resources); return b; @@ -1727,7 +1727,7 @@ struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, pci_add_resource(&resources, &iomem_resource); b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources); if (b) { - b->subordinate = pci_scan_child_bus(b); + b->busn_res.end = pci_scan_child_bus(b); pci_bus_add_devices(b); } else { pci_free_resource_list(&resources); diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 8fa2d4be88de..192172c87b77 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -404,8 +404,8 @@ void pci_setup_cardbus(struct pci_bus *bus) struct resource *res; struct pci_bus_region region; - dev_info(&bridge->dev, "CardBus bridge to [bus %02x-%02x]\n", - bus->secondary, bus->subordinate); + dev_info(&bridge->dev, "CardBus bridge to %pR\n", + &bus->busn_res); res = bus->resource[0]; pcibios_resource_to_bus(bridge, ®ion, res); @@ -553,8 +553,8 @@ static void __pci_setup_bridge(struct pci_bus *bus, unsigned long type) { struct pci_dev *bridge = bus->self; - dev_info(&bridge->dev, "PCI bridge to [bus %02x-%02x]\n", - bus->secondary, bus->subordinate); + dev_info(&bridge->dev, "PCI bridge to %pR\n", + &bus->busn_res); if (type & IORESOURCE_IO) pci_setup_bridge_io(bus); @@ -745,8 +745,8 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, if (!size0 && !size1) { if (b_res->start || b_res->end) dev_info(&bus->self->dev, "disabling bridge window " - "%pR to [bus %02x-%02x] (unused)\n", b_res, - bus->secondary, bus->subordinate); + "%pR to %pR (unused)\n", b_res, + &bus->busn_res); b_res->flags = 0; return; } @@ -757,8 +757,8 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, if (size1 > size0 && realloc_head) { add_to_list(realloc_head, bus->self, b_res, size1-size0, 4096); dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window " - "%pR to [bus %02x-%02x] add_size %lx\n", b_res, - bus->secondary, bus->subordinate, size1-size0); + "%pR to %pR add_size %lx\n", b_res, + &bus->busn_res, size1-size0); } } @@ -863,8 +863,8 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, if (!size0 && !size1) { if (b_res->start || b_res->end) dev_info(&bus->self->dev, "disabling bridge window " - "%pR to [bus %02x-%02x] (unused)\n", b_res, - bus->secondary, bus->subordinate); + "%pR to %pR (unused)\n", b_res, + &bus->busn_res); b_res->flags = 0; return 1; } @@ -874,8 +874,8 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, if (size1 > size0 && realloc_head) { add_to_list(realloc_head, bus->self, b_res, size1-size0, min_align); dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window " - "%pR to [bus %02x-%02x] add_size %llx\n", b_res, - bus->secondary, bus->subordinate, (unsigned long long)size1-size0); + "%pR to %pR add_size %llx\n", b_res, + &bus->busn_res, (unsigned long long)size1-size0); } return 1; } diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c index 6e75153c5b4f..24caeaf50529 100644 --- a/drivers/pcmcia/cardbus.c +++ b/drivers/pcmcia/cardbus.c @@ -73,7 +73,7 @@ int __ref cb_alloc(struct pcmcia_socket *s) s->functions = pci_scan_slot(bus, PCI_DEVFN(0, 0)); pci_fixup_cardbus(bus); - max = bus->secondary; + max = bus->busn_res.start; for (pass = 0; pass < 2; pass++) list_for_each_entry(dev, &bus->devices, bus_list) if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index d07f9ac8c41d..667678db1153 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1048,8 +1048,8 @@ static void yenta_config_init(struct yenta_socket *socket) config_writeb(socket, PCI_LATENCY_TIMER, 168); config_writel(socket, PCI_PRIMARY_BUS, (176 << 24) | /* sec. latency timer */ - (dev->subordinate->subordinate << 16) | /* subordinate bus */ - (dev->subordinate->secondary << 8) | /* secondary bus */ + ((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */ + ((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */ dev->subordinate->primary); /* primary bus */ /* @@ -1086,14 +1086,14 @@ static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) struct pci_bus *bridge_to_fix = cardbus_bridge->parent; /* Check bus numbers are already set up correctly: */ - if (bridge_to_fix->subordinate >= cardbus_bridge->subordinate) + if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end) return; /* The subordinate number is ok, nothing to do */ if (!bridge_to_fix->parent) return; /* Root bridges are ok */ /* stay within the limits of the bus range of the parent: */ - upper_limit = bridge_to_fix->parent->subordinate; + upper_limit = bridge_to_fix->parent->busn_res.end; /* check the bus ranges of all silbling bridges to prevent overlap */ list_for_each(tmp, &bridge_to_fix->parent->children) { @@ -1104,36 +1104,36 @@ static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) * current upper limit, set the new upper limit to * the bus number below the silbling's range: */ - if (silbling->secondary > bridge_to_fix->subordinate - && silbling->secondary <= upper_limit) - upper_limit = silbling->secondary - 1; + if (silbling->busn_res.start > bridge_to_fix->busn_res.end + && silbling->busn_res.start <= upper_limit) + upper_limit = silbling->busn_res.start - 1; } /* Show that the wanted subordinate number is not possible: */ - if (cardbus_bridge->subordinate > upper_limit) + if (cardbus_bridge->busn_res.end > upper_limit) dev_printk(KERN_WARNING, &cardbus_bridge->dev, "Upper limit for fixing this " "bridge's parent bridge: #%02x\n", upper_limit); /* If we have room to increase the bridge's subordinate number, */ - if (bridge_to_fix->subordinate < upper_limit) { + if (bridge_to_fix->busn_res.end < upper_limit) { /* use the highest number of the hidden bus, within limits */ unsigned char subordinate_to_assign = - min(cardbus_bridge->subordinate, upper_limit); + min_t(int, cardbus_bridge->busn_res.end, upper_limit); dev_printk(KERN_INFO, &bridge_to_fix->dev, "Raising subordinate bus# of parent " "bus (#%02x) from #%02x to #%02x\n", bridge_to_fix->number, - bridge_to_fix->subordinate, subordinate_to_assign); + (int)bridge_to_fix->busn_res.end, subordinate_to_assign); /* Save the new subordinate in the bus struct of the bridge */ - bridge_to_fix->subordinate = subordinate_to_assign; + bridge_to_fix->busn_res.end = subordinate_to_assign; /* and update the PCI config space with the new subordinate */ pci_write_config_byte(bridge_to_fix->self, - PCI_SUBORDINATE_BUS, bridge_to_fix->subordinate); + PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end); } } -- cgit v1.2.3 From 2661b819a10d432aa6f508630ff72e31367d4f21 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 17 May 2012 18:51:12 -0700 Subject: ia64/PCI: register busn_res for root buses Add the host bridge bus number aperture from _CRS to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog] CC: Tony Luck CC: Fenghua Yu CC: linux-ia64@vger.kernel.org Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas --- arch/ia64/pci/pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 3ca9bed7dc50..d173a88d744a 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -351,6 +351,8 @@ pci_acpi_scan_root(struct acpi_pci_root *root) #endif INIT_LIST_HEAD(&info.resources); + /* insert busn resource at first */ + pci_add_resource(&info.resources, &root->secondary); acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, &windows); if (windows) { @@ -384,7 +386,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root) return NULL; } - pbus->busn_res.end = pci_scan_child_bus(pbus); + pci_scan_child_bus(pbus); return pbus; out3: -- cgit v1.2.3 From f28fa729149c8b39699f7995ce5fff34c5145a9d Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Thu, 14 Jun 2012 13:11:37 -0700 Subject: [IA64] Port OOM changes to ia64_do_page_fault Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to ia64. Signed-off-by: Kautuk Consul Signed-off-by: Tony Luck --- arch/ia64/mm/fault.c | 46 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 34 insertions(+), 12 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index 02d29c2a132a..8443daf4f515 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -72,6 +72,10 @@ mapped_kernel_page_is_present (unsigned long address) return pte_present(pte); } +# define VM_READ_BIT 0 +# define VM_WRITE_BIT 1 +# define VM_EXEC_BIT 2 + void __kprobes ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) { @@ -81,6 +85,12 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re struct siginfo si; unsigned long mask; int fault; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; + + mask = ((((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) + | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); + + flags |= ((mask & VM_WRITE) ? FAULT_FLAG_WRITE : 0); /* mmap_sem is performance critical.... */ prefetchw(&mm->mmap_sem); @@ -109,6 +119,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re if (notify_page_fault(regs, TRAP_BRKPT)) return; +retry: down_read(&mm->mmap_sem); vma = find_vma_prev(mm, address, &prev_vma); @@ -130,10 +141,6 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re /* OK, we've got a good vm_area for this memory area. Check the access permissions: */ -# define VM_READ_BIT 0 -# define VM_WRITE_BIT 1 -# define VM_EXEC_BIT 2 - # if (((1 << VM_READ_BIT) != VM_READ || (1 << VM_WRITE_BIT) != VM_WRITE) \ || (1 << VM_EXEC_BIT) != VM_EXEC) # error File is out of sync with . Please update. @@ -142,9 +149,6 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE)))) goto bad_area; - mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); - if ((vma->vm_flags & mask) != mask) goto bad_area; @@ -153,7 +157,11 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re * sure we exit gracefully rather than endlessly redo the * fault. */ - fault = handle_mm_fault(mm, vma, address, (mask & VM_WRITE) ? FAULT_FLAG_WRITE : 0); + fault = handle_mm_fault(mm, vma, address, flags); + + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return; + if (unlikely(fault & VM_FAULT_ERROR)) { /* * We ran out of memory, or some other thing happened @@ -168,10 +176,24 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re } BUG(); } - if (fault & VM_FAULT_MAJOR) - current->maj_flt++; - else - current->min_flt++; + + if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; + if (fault & VM_FAULT_RETRY) { + flags &= ~FAULT_FLAG_ALLOW_RETRY; + + /* No need to up_read(&mm->mmap_sem) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ + + goto retry; + } + } + up_read(&mm->mmap_sem); return; -- cgit v1.2.3 From a1e4ccb990447df0fe83d164d9a7bc2e6c4b7db7 Mon Sep 17 00:00:00 2001 From: Christoffer Dall Date: Fri, 15 Jun 2012 15:07:13 -0400 Subject: KVM: Introduce __KVM_HAVE_IRQ_LINE This is a preparatory patch for the KVM/ARM implementation. KVM/ARM will use the KVM_IRQ_LINE ioctl, which is currently conditional on __KVM_HAVE_IOAPIC, but ARM obviously doesn't have any IOAPIC support and we need a separate define. Signed-off-by: Christoffer Dall Signed-off-by: Avi Kivity --- arch/ia64/include/asm/kvm.h | 1 + arch/x86/include/asm/kvm.h | 1 + include/trace/events/kvm.h | 4 +++- 3 files changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h index b9f82c84f093..ec6c6b301238 100644 --- a/arch/ia64/include/asm/kvm.h +++ b/arch/ia64/include/asm/kvm.h @@ -26,6 +26,7 @@ /* Select x86 specific features in */ #define __KVM_HAVE_IOAPIC +#define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_DEVICE_ASSIGNMENT /* Architectural interrupt line count. */ diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h index e7d1c194d272..246617efd67f 100644 --- a/arch/x86/include/asm/kvm.h +++ b/arch/x86/include/asm/kvm.h @@ -12,6 +12,7 @@ /* Select x86 specific features in */ #define __KVM_HAVE_PIT #define __KVM_HAVE_IOAPIC +#define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_DEVICE_ASSIGNMENT #define __KVM_HAVE_MSI #define __KVM_HAVE_USER_NMI diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h index 3df5925fe641..7ef9e759f499 100644 --- a/include/trace/events/kvm.h +++ b/include/trace/events/kvm.h @@ -37,7 +37,7 @@ TRACE_EVENT(kvm_userspace_exit, __entry->errno < 0 ? -__entry->errno : __entry->reason) ); -#if defined(__KVM_HAVE_IOAPIC) +#if defined(__KVM_HAVE_IRQ_LINE) TRACE_EVENT(kvm_set_irq, TP_PROTO(unsigned int gsi, int level, int irq_source_id), TP_ARGS(gsi, level, irq_source_id), @@ -57,7 +57,9 @@ TRACE_EVENT(kvm_set_irq, TP_printk("gsi %u level %d source %d", __entry->gsi, __entry->level, __entry->irq_source_id) ); +#endif +#if defined(__KVM_HAVE_IOAPIC) #define kvm_deliver_mode \ {0x0, "Fixed"}, \ {0x1, "LowPrio"}, \ -- cgit v1.2.3 From 7d43c2e42cb1e436f97c1763150e4e1122ae0d57 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Wed, 30 May 2012 14:19:55 -0600 Subject: iommu: Remove group_mf The iommu=group_mf is really no longer needed with the addition of ACS support in IOMMU drivers creating groups. Most multifunction devices will now be grouped already. If a device has gone to the trouble of exposing ACS, trust that it works. We can use the device specific ACS function for fixing devices we trust individually. This largely reverts bcb71abe. Signed-off-by: Alex Williamson Signed-off-by: Joerg Roedel --- Documentation/kernel-parameters.txt | 1 - arch/ia64/include/asm/iommu.h | 2 -- arch/ia64/kernel/pci-dma.c | 1 - arch/x86/include/asm/iommu.h | 1 - arch/x86/kernel/pci-dma.c | 11 ----------- 5 files changed, 16 deletions(-) (limited to 'arch/ia64') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a92c5ebf373e..d2f4f7acc435 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1134,7 +1134,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. forcesac soft pt [x86, IA-64] - group_mf [x86, IA-64] io7= [HW] IO7 for Marvel based alpha systems diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h index b6a809fa2995..105c93b00b1b 100644 --- a/arch/ia64/include/asm/iommu.h +++ b/arch/ia64/include/asm/iommu.h @@ -11,12 +11,10 @@ extern void no_iommu_init(void); extern int force_iommu, no_iommu; extern int iommu_pass_through; extern int iommu_detected; -extern int iommu_group_mf; #else #define iommu_pass_through (0) #define no_iommu (1) #define iommu_detected (0) -#define iommu_group_mf (0) #endif extern void iommu_dma_init(void); extern void machvec_init(const char *name); diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 7cdc89b2483c..1ddcfe5ef353 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -32,7 +32,6 @@ int force_iommu __read_mostly; #endif int iommu_pass_through; -int iommu_group_mf; /* Dummy device used for NULL arguments (normally ISA). Better would be probably a smaller DMA mask, but this is bug-to-bug compatible diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index dffc38ee6255..345c99cef152 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -5,7 +5,6 @@ extern struct dma_map_ops nommu_dma_ops; extern int force_iommu, no_iommu; extern int iommu_detected; extern int iommu_pass_through; -extern int iommu_group_mf; /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index c0f420f76cd3..de2b7ad70273 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -45,15 +45,6 @@ int iommu_detected __read_mostly = 0; */ int iommu_pass_through __read_mostly; -/* - * Group multi-function PCI devices into a single device-group for the - * iommu_device_group interface. This tells the iommu driver to pretend - * it cannot distinguish between functions of a device, exposing only one - * group for the device. Useful for disallowing use of individual PCI - * functions from userspace drivers. - */ -int iommu_group_mf __read_mostly; - extern struct iommu_table_entry __iommu_table[], __iommu_table_end[]; /* Dummy device used for NULL arguments (normally ISA). */ @@ -194,8 +185,6 @@ static __init int iommu_setup(char *p) #endif if (!strncmp(p, "pt", 2)) iommu_pass_through = 1; - if (!strncmp(p, "group_mf", 8)) - iommu_group_mf = 1; gart_parse_options(p); -- cgit v1.2.3 From 6ac7d11527a31d01b566a5c45369180e326ff4f1 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Wed, 6 Jun 2012 14:17:46 +0200 Subject: treewide: Put a space between #include and FILE Signed-off-by: Paul Bolle Signed-off-by: Jiri Kosina --- arch/arm/plat-samsung/include/plat/gpio-cfg.h | 2 +- arch/ia64/kernel/ia64_ksyms.c | 2 +- arch/ia64/kvm/vmm.c | 6 +++--- arch/parisc/include/asm/compat_rt_sigframe.h | 6 +++--- drivers/media/video/zoran/zr36016.c | 4 ++-- drivers/net/wireless/iwlwifi/iwl-io.c | 2 +- drivers/scsi/aha1542.c | 2 +- drivers/staging/comedi/drivers/s626.h | 2 +- 8 files changed, 13 insertions(+), 13 deletions(-) (limited to 'arch/ia64') diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h index df8155b9d4d1..08740eed050c 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h @@ -24,7 +24,7 @@ #ifndef __PLAT_GPIO_CFG_H #define __PLAT_GPIO_CFG_H __FILE__ -#include +#include typedef unsigned int __bitwise__ samsung_gpio_pull_t; typedef unsigned int __bitwise__ s5p_gpio_drvstr_t; diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 7f4a0ed24152..5b7791dd3965 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -12,7 +12,7 @@ EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(strlen); -#include +#include EXPORT_SYMBOL_GPL(empty_zero_page); #include diff --git a/arch/ia64/kvm/vmm.c b/arch/ia64/kvm/vmm.c index f0b9cac82414..176a12cd56de 100644 --- a/arch/ia64/kvm/vmm.c +++ b/arch/ia64/kvm/vmm.c @@ -20,9 +20,9 @@ */ -#include -#include -#include +#include +#include +#include #include "vcpu.h" diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h index 81bec28bdc48..b3f95a7f18b4 100644 --- a/arch/parisc/include/asm/compat_rt_sigframe.h +++ b/arch/parisc/include/asm/compat_rt_sigframe.h @@ -1,6 +1,6 @@ -#include -#include -#include +#include +#include +#include #ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H #define _ASM_PARISC_COMPAT_RT_SIGFRAME_H diff --git a/drivers/media/video/zoran/zr36016.c b/drivers/media/video/zoran/zr36016.c index 21c088ea9046..b87ddba8608f 100644 --- a/drivers/media/video/zoran/zr36016.c +++ b/drivers/media/video/zoran/zr36016.c @@ -40,10 +40,10 @@ /* v4l API */ /* headerfile of this module */ -#include"zr36016.h" +#include "zr36016.h" /* codec io API */ -#include"videocodec.h" +#include "videocodec.h" /* it doesn't make sense to have more than 20 or so, just to prevent some unwanted loops */ diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c index 081dd34d2387..0f8b8aa9e8d7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/iwlwifi/iwl-io.c @@ -29,7 +29,7 @@ #include #include "iwl-io.h" -#include"iwl-csr.h" +#include "iwl-csr.h" #include "iwl-debug.h" #define IWL_POLL_INTERVAL 10 /* microseconds */ diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c index f79c8f9e33a4..770c48ddbe5e 100644 --- a/drivers/scsi/aha1542.c +++ b/drivers/scsi/aha1542.c @@ -49,7 +49,7 @@ #define SCSI_BUF_PA(address) isa_virt_to_bus(address) #define SCSI_SG_PA(sgent) (isa_page_to_bus(sg_page((sgent))) + (sgent)->offset) -#include +#include #ifdef DEBUG #define DEB(x) x diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h index 2d1afecbbb60..92d3ea5eb44d 100644 --- a/drivers/staging/comedi/drivers/s626.h +++ b/drivers/staging/comedi/drivers/s626.h @@ -80,7 +80,7 @@ #define INLINE static __inline #endif -#include +#include #define S626_SIZE 0x0200 #define SIZEOF_ADDRESS_SPACE 0x0200 -- cgit v1.2.3 From 8421a35a511be699cfab08f623ce5c32706219e6 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Mon, 25 Jun 2012 21:31:17 -0600 Subject: ia64/PCI: factor out pcibios_setup() The PCI core provides a generic pcibios_setup() routine. Drop this architecture-specific version in favor of that. Acked-by: Tony Luck Signed-off-by: Myron Stowe Signed-off-by: Bjorn Helgaas --- arch/ia64/pci/pci.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 524df4295c90..e51941fe8a04 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -496,15 +496,6 @@ pcibios_align_resource (void *data, const struct resource *res, return res->start; } -/* - * PCI BIOS setup, always defaults to SAL interface - */ -char * __init -pcibios_setup (char *str) -{ - return str; -} - int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) -- cgit v1.2.3 From c5857ccf293968348e5eb4ebedc68074de3dcda6 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 14 Jul 2012 20:27:52 -0400 Subject: random: remove rand_initialize_irq() With the new interrupt sampling system, we are no longer using the timer_rand_state structure in the irq descriptor, so we can stop initializing it now. [ Merged in fixes from Sedat to find some last missing references to rand_initialize_irq() ] Signed-off-by: "Theodore Ts'o" Signed-off-by: Sedat Dilek --- arch/ia64/kernel/irq_ia64.c | 1 - drivers/char/random.c | 55 --------------------------------------------- drivers/mfd/ab3100-core.c | 3 --- include/linux/irqdesc.h | 1 - include/linux/random.h | 2 -- kernel/irq/manage.c | 17 -------------- 6 files changed, 79 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 5c3e0888265a..1034884b77da 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -23,7 +23,6 @@ #include #include #include -#include /* for rand_initialize_irq() */ #include #include #include diff --git a/drivers/char/random.c b/drivers/char/random.c index e3180852ec85..9793b40f5754 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -634,43 +634,6 @@ struct timer_rand_state { unsigned dont_count_entropy:1; }; -#ifndef CONFIG_GENERIC_HARDIRQS - -static struct timer_rand_state *irq_timer_state[NR_IRQS]; - -static struct timer_rand_state *get_timer_rand_state(unsigned int irq) -{ - return irq_timer_state[irq]; -} - -static void set_timer_rand_state(unsigned int irq, - struct timer_rand_state *state) -{ - irq_timer_state[irq] = state; -} - -#else - -static struct timer_rand_state *get_timer_rand_state(unsigned int irq) -{ - struct irq_desc *desc; - - desc = irq_to_desc(irq); - - return desc->timer_rand_state; -} - -static void set_timer_rand_state(unsigned int irq, - struct timer_rand_state *state) -{ - struct irq_desc *desc; - - desc = irq_to_desc(irq); - - desc->timer_rand_state = state; -} -#endif - /* * Add device- or boot-specific data to the input and nonblocking * pools to help initialize them to unique values. @@ -1133,24 +1096,6 @@ static int rand_initialize(void) } module_init(rand_initialize); -void rand_initialize_irq(int irq) -{ - struct timer_rand_state *state; - - state = get_timer_rand_state(irq); - - if (state) - return; - - /* - * If kzalloc returns null, we just won't use that entropy - * source. - */ - state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL); - if (state) - set_timer_rand_state(irq, state); -} - #ifdef CONFIG_BLOCK void rand_initialize_disk(struct gendisk *disk) { diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c index 9522d6bda4f7..1287645b984d 100644 --- a/drivers/mfd/ab3100-core.c +++ b/drivers/mfd/ab3100-core.c @@ -931,9 +931,6 @@ static int __devinit ab3100_probe(struct i2c_client *client, err = request_threaded_irq(client->irq, NULL, ab3100_irq_handler, IRQF_ONESHOT, "ab3100-core", ab3100); - /* This real unpredictable IRQ is of course sampled for entropy */ - rand_initialize_irq(client->irq); - if (err) goto exit_no_irq; diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index f1e2527006bd..9a323d12de1c 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -39,7 +39,6 @@ struct module; */ struct irq_desc { struct irq_data irq_data; - struct timer_rand_state *timer_rand_state; unsigned int __percpu *kstat_irqs; irq_flow_handler_t handle_irq; #ifdef CONFIG_IRQ_PREFLOW_FASTEOI diff --git a/include/linux/random.h b/include/linux/random.h index 29e217a7e6d0..ac621ce886ca 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -48,8 +48,6 @@ struct rnd_state { #ifdef __KERNEL__ -extern void rand_initialize_irq(int irq); - extern void add_device_randomness(const void *, unsigned int); extern void add_input_randomness(unsigned int type, unsigned int code, unsigned int value); diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 8c548232ba39..5e42eb119677 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -893,22 +893,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) return -ENOSYS; if (!try_module_get(desc->owner)) return -ENODEV; - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & IRQF_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } /* * Check whether the interrupt nests into another interrupt @@ -1354,7 +1338,6 @@ EXPORT_SYMBOL(free_irq); * Flags: * * IRQF_SHARED Interrupt is shared - * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy * IRQF_TRIGGER_* Specify active edge(s) or level * */ -- cgit v1.2.3 From 0c406643d9f1a9071aa44045f897bce087fe3945 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Wed, 25 Jul 2012 15:53:49 +0800 Subject: [IA64] Mark PARAVIRT and KVM as broken Well, this at least makes allmodconfig happy. Proposed-by: David Howells Signed-off-by: Fengguang Wu Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 3 +-- arch/ia64/kvm/Kconfig | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 8186ec5ea151..310cf5781fad 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -126,6 +126,7 @@ config AUDIT_ARCH menuconfig PARAVIRT_GUEST bool "Paravirtualized guest support" + depends on BROKEN help Say Y here to get to see options related to running Linux under various hypervisors. This option alone does not add any kernel code. @@ -138,8 +139,6 @@ config PARAVIRT bool "Enable paravirtualization code" depends on PARAVIRT_GUEST default y - bool - default y help This changes the kernel so it can modify itself when it is run under a hypervisor, potentially improving performance significantly diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig index 9806e55f91be..8ca8e353487d 100644 --- a/arch/ia64/kvm/Kconfig +++ b/arch/ia64/kvm/Kconfig @@ -22,6 +22,7 @@ config KVM depends on HAVE_KVM && MODULES && EXPERIMENTAL # for device assignment: depends on PCI + depends on BROKEN select PREEMPT_NOTIFIERS select ANON_INODES select HAVE_KVM_IRQCHIP -- cgit v1.2.3 From f9445a382e3b9fdd21db41a4825ca1399cd0a3f4 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Wed, 25 Jul 2012 15:15:13 +0800 Subject: [IA64] Rename platform_name to ia64_platform_name The macro name is too generic and conflicts with snd_soc_dai_link.platform_name, which triggers lots of build errors. Signed-off-by: Fengguang Wu Signed-off-by: Tony Luck --- arch/ia64/include/asm/machvec.h | 2 +- arch/ia64/include/asm/machvec_dig.h | 2 +- arch/ia64/include/asm/machvec_dig_vtd.h | 2 +- arch/ia64/include/asm/machvec_hpsim.h | 2 +- arch/ia64/include/asm/machvec_hpzx1.h | 2 +- arch/ia64/include/asm/machvec_hpzx1_swiotlb.h | 2 +- arch/ia64/include/asm/machvec_sn2.h | 2 +- arch/ia64/include/asm/machvec_uv.h | 2 +- arch/ia64/include/asm/machvec_xen.h | 2 +- arch/ia64/include/asm/processor.h | 2 +- arch/ia64/pci/fixup.c | 4 ++-- 11 files changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 367d299d9938..2d1ad4b11a85 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -120,7 +120,7 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # ifdef MACHVEC_PLATFORM_HEADER # include MACHVEC_PLATFORM_HEADER # else -# define platform_name ia64_mv.name +# define ia64_platform_name ia64_mv.name # define platform_setup ia64_mv.setup # define platform_cpu_init ia64_mv.cpu_init # define platform_irq_init ia64_mv.irq_init diff --git a/arch/ia64/include/asm/machvec_dig.h b/arch/ia64/include/asm/machvec_dig.h index 8a0752f40987..1f7403a2fbee 100644 --- a/arch/ia64/include/asm/machvec_dig.h +++ b/arch/ia64/include/asm/machvec_dig.h @@ -10,7 +10,7 @@ extern ia64_mv_setup_t dig_setup; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "dig" +#define ia64_platform_name "dig" #define platform_setup dig_setup #endif /* _ASM_IA64_MACHVEC_DIG_h */ diff --git a/arch/ia64/include/asm/machvec_dig_vtd.h b/arch/ia64/include/asm/machvec_dig_vtd.h index 6ab1de5c45ef..44308b4c3f6e 100644 --- a/arch/ia64/include/asm/machvec_dig_vtd.h +++ b/arch/ia64/include/asm/machvec_dig_vtd.h @@ -11,7 +11,7 @@ extern ia64_mv_dma_init pci_iommu_alloc; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "dig_vtd" +#define ia64_platform_name "dig_vtd" #define platform_setup dig_setup #define platform_dma_init pci_iommu_alloc diff --git a/arch/ia64/include/asm/machvec_hpsim.h b/arch/ia64/include/asm/machvec_hpsim.h index cf72fc87fdfe..e75711279366 100644 --- a/arch/ia64/include/asm/machvec_hpsim.h +++ b/arch/ia64/include/asm/machvec_hpsim.h @@ -11,7 +11,7 @@ extern ia64_mv_irq_init_t hpsim_irq_init; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "hpsim" +#define ia64_platform_name "hpsim" #define platform_setup hpsim_setup #define platform_irq_init hpsim_irq_init diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h index 3bd83d78a412..c74d3159e9eb 100644 --- a/arch/ia64/include/asm/machvec_hpzx1.h +++ b/arch/ia64/include/asm/machvec_hpzx1.h @@ -11,7 +11,7 @@ extern ia64_mv_dma_init sba_dma_init; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "hpzx1" +#define ia64_platform_name "hpzx1" #define platform_setup dig_setup #define platform_dma_init sba_dma_init diff --git a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h index 1091ac39740c..906ef6210774 100644 --- a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h +++ b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h @@ -11,7 +11,7 @@ extern ia64_mv_dma_get_ops hwsw_dma_get_ops; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "hpzx1_swiotlb" +#define ia64_platform_name "hpzx1_swiotlb" #define platform_setup dig_setup #define platform_dma_init machvec_noop #define platform_dma_get_ops hwsw_dma_get_ops diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index f061a30aac42..ece9fa85be88 100644 --- a/arch/ia64/include/asm/machvec_sn2.h +++ b/arch/ia64/include/asm/machvec_sn2.h @@ -71,7 +71,7 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "sn2" +#define ia64_platform_name "sn2" #define platform_setup sn_setup #define platform_cpu_init sn_cpu_init #define platform_irq_init sn_irq_init diff --git a/arch/ia64/include/asm/machvec_uv.h b/arch/ia64/include/asm/machvec_uv.h index 2931447f3813..2c50853f35ac 100644 --- a/arch/ia64/include/asm/machvec_uv.h +++ b/arch/ia64/include/asm/machvec_uv.h @@ -20,7 +20,7 @@ extern ia64_mv_setup_t uv_setup; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "uv" +#define ia64_platform_name "uv" #define platform_setup uv_setup #endif /* _ASM_IA64_MACHVEC_UV_H */ diff --git a/arch/ia64/include/asm/machvec_xen.h b/arch/ia64/include/asm/machvec_xen.h index 55f9228056cd..8b8bd0eb3923 100644 --- a/arch/ia64/include/asm/machvec_xen.h +++ b/arch/ia64/include/asm/machvec_xen.h @@ -13,7 +13,7 @@ extern ia64_mv_send_ipi_t xen_platform_send_ipi; * platform's machvec structure. When compiling a non-generic kernel, * the macros are used directly. */ -#define platform_name "xen" +#define ia64_platform_name "xen" #define platform_setup dig_setup #define platform_cpu_init xen_cpu_init #define platform_irq_init xen_irq_init diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 832dd3789e9d..944152a50912 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -719,7 +719,7 @@ enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_FORCE_MWAIT, void default_idle(void); -#define ia64_platform_is(x) (strcmp(x, platform_name) == 0) +#define ia64_platform_is(x) (strcmp(x, ia64_platform_name) == 0) #endif /* !__ASSEMBLY__ */ diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c index f5959c0c1810..eab28e314022 100644 --- a/arch/ia64/pci/fixup.c +++ b/arch/ia64/pci/fixup.c @@ -30,8 +30,8 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev) struct pci_bus *bus; u16 config; - if ((strcmp(platform_name, "dig") != 0) - && (strcmp(platform_name, "hpzx1") != 0)) + if ((strcmp(ia64_platform_name, "dig") != 0) + && (strcmp(ia64_platform_name, "hpzx1") != 0)) return; /* Maybe, this machine supports legacy memory map. */ -- cgit v1.2.3 From a119365586b0130dfea06457f584953e0ff6481d Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 26 Jul 2012 10:55:26 -0700 Subject: [IA64] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts The following build error occured during a ia64 build with swap-over-NFS patches applied. net/core/sock.c:274:36: error: initializer element is not constant net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks') net/core/sock.c:274:36: error: initializer element is not constant This is identical to a parisc build error. Fengguang Wu, Mel Gorman and James Bottomley did all the legwork to track the root cause of the problem. This fix and entire commit log is shamelessly copied from them with one extra detail to change a dubious runtime use of ATOMIC_INIT() to atomic_set() in drivers/char/mspec.c Dave Anglin says: > Here is the line in sock.i: > > struct static_key memalloc_socks = ((struct static_key) { .enabled = > ((atomic_t) { (0) }) }); The above line contains two compound literals. It also uses a designated initializer to initialize the field enabled. A compound literal is not a constant expression. The location of the above statement isn't fully clear, but if a compound literal occurs outside the body of a function, the initializer list must consist of constant expressions. Cc: Signed-off-by: Tony Luck --- arch/ia64/include/asm/atomic.h | 4 ++-- drivers/char/mspec.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h index 7d9116600a36..6e6fe1839f5d 100644 --- a/arch/ia64/include/asm/atomic.h +++ b/arch/ia64/include/asm/atomic.h @@ -17,8 +17,8 @@ #include -#define ATOMIC_INIT(i) ((atomic_t) { (i) }) -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) }) +#define ATOMIC_INIT(i) { (i) } +#define ATOMIC64_INIT(i) { (i) } #define atomic_read(v) (*(volatile int *)&(v)->counter) #define atomic64_read(v) (*(volatile long *)&(v)->counter) diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index 8b78750f1efe..845f97fd1832 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -283,7 +283,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma, vdata->flags = flags; vdata->type = type; spin_lock_init(&vdata->lock); - vdata->refcnt = ATOMIC_INIT(1); + atomic_set(&vdata->refcnt, 1); vma->vm_private_data = vdata; vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP | VM_DONTEXPAND); -- cgit v1.2.3 From 44de9d0cad41f2c51ef26916842be046b582dcc9 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Tue, 31 Jul 2012 16:41:49 -0700 Subject: mm: account the total_vm in the vm_stat_account() vm_stat_account() accounts the shared_vm, stack_vm and reserved_vm now. But we can also account for total_vm in the vm_stat_account() which makes the code tidy. Even for mprotect_fixup(), we can get the right result in the end. Signed-off-by: Huang Shijie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/perfmon.c | 1 - include/linux/mm.h | 1 + kernel/fork.c | 4 +--- mm/mmap.c | 5 ++--- mm/mremap.c | 2 -- 5 files changed, 4 insertions(+), 9 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index d7f558c1e711..3fa4bc536953 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -2353,7 +2353,6 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t */ insert_vm_struct(mm, vma); - mm->total_vm += size >> PAGE_SHIFT; vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, vma_pages(vma)); up_write(&task->mm->mmap_sem); diff --git a/include/linux/mm.h b/include/linux/mm.h index f9f279cf5b1b..3955bedeeed1 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1528,6 +1528,7 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long); static inline void vm_stat_account(struct mm_struct *mm, unsigned long flags, struct file *file, long pages) { + mm->total_vm += pages; } #endif /* CONFIG_PROC_FS */ diff --git a/kernel/fork.c b/kernel/fork.c index 8efac1fe56bc..aaa8813c45d1 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -381,10 +381,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) struct file *file; if (mpnt->vm_flags & VM_DONTCOPY) { - long pages = vma_pages(mpnt); - mm->total_vm -= pages; vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file, - -pages); + -vma_pages(mpnt)); continue; } charge = 0; diff --git a/mm/mmap.c b/mm/mmap.c index 3edfcdfa42d9..1ee2fd8bc486 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -943,6 +943,8 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags, const unsigned long stack_flags = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN); + mm->total_vm += pages; + if (file) { mm->shared_vm += pages; if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC) @@ -1347,7 +1349,6 @@ munmap_back: out: perf_event_mmap(vma); - mm->total_vm += len >> PAGE_SHIFT; vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); if (vm_flags & VM_LOCKED) { if (!mlock_vma_pages_range(vma, addr, addr + len)) @@ -1707,7 +1708,6 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns return -ENOMEM; /* Ok, everything looks good - let it rip */ - mm->total_vm += grow; if (vma->vm_flags & VM_LOCKED) mm->locked_vm += grow; vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow); @@ -1889,7 +1889,6 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma) if (vma->vm_flags & VM_ACCOUNT) nr_accounted += nrpages; - mm->total_vm -= nrpages; vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); vma = remove_vma(vma); } while (vma); diff --git a/mm/mremap.c b/mm/mremap.c index 21fed202ddad..cc06d0e48d05 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -260,7 +260,6 @@ static unsigned long move_vma(struct vm_area_struct *vma, * If this were a serious issue, we'd add a flag to do_munmap(). */ hiwater_vm = mm->hiwater_vm; - mm->total_vm += new_len >> PAGE_SHIFT; vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT); if (do_munmap(mm, old_addr, old_len) < 0) { @@ -497,7 +496,6 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len, goto out; } - mm->total_vm += pages; vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages); if (vma->vm_flags & VM_LOCKED) { mm->locked_vm += pages; -- cgit v1.2.3