From patchwork Tue Oct 13 06:08:35 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Helgaas X-Patchwork-Id: 53317 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n9D6EFsp026041 for ; Tue, 13 Oct 2009 06:14:15 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751004AbZJMGMc (ORCPT ); Tue, 13 Oct 2009 02:12:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751185AbZJMGMc (ORCPT ); Tue, 13 Oct 2009 02:12:32 -0400 Received: from g5t0006.atlanta.hp.com ([15.192.0.43]:35746 "EHLO g5t0006.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004AbZJMGM3 (ORCPT ); Tue, 13 Oct 2009 02:12:29 -0400 Received: from g5t0029.atlanta.hp.com (g5t0029.atlanta.hp.com [16.228.8.141]) by g5t0006.atlanta.hp.com (Postfix) with ESMTP id 1CD9FC206; Tue, 13 Oct 2009 06:11:53 +0000 (UTC) Received: from ldl (linux.corp.hp.com [15.11.146.101]) by g5t0029.atlanta.hp.com (Postfix) with ESMTP id 8C4C91001C; Tue, 13 Oct 2009 06:11:50 +0000 (UTC) Received: from localhost (ldl.fc.hp.com [127.0.0.1]) by ldl (Postfix) with ESMTP id 55FDECF0012; Tue, 13 Oct 2009 00:11:50 -0600 (MDT) Received: from ldl ([127.0.0.1]) by localhost (ldl.fc.hp.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VXtvVwKw6Q7j; Tue, 13 Oct 2009 00:11:50 -0600 (MDT) Received: from [192.168.1.2] (squirrel.fc.hp.com [15.11.146.57]) by ldl (Postfix) with ESMTP id C1F4FCF0007; Tue, 13 Oct 2009 00:11:48 -0600 (MDT) Subject: Re: [PATCH] pci: increase alignment to make more space for hidden code From: Bjorn Helgaas To: Yinghai Lu Cc: Ingo Molnar , Len Brown , Linus Torvalds , Jesse Barnes , Ricardo Jorge da Fonseca Marques Ferreira , Linux Kernel Mailing List , linux-acpi@vger.kernel.org, Yannick Roehlly , Ivan Kokshaysky , x86@kernel.org, andreaorru91@gmail.com, jjorge@free.fr In-Reply-To: <4AD38734.2040600@kernel.org> References: <200908072333.24631.storm@sys49152.net> <4ACAC8F1.1050706@kernel.org> <4AD24B5C.4050905@kernel.org> <200910121059.10366.bjorn.helgaas@hp.com> <4AD37CA4.90601@kernel.org> <20091012192242.GA2691@elte.hu> <4AD38734.2040600@kernel.org> Date: Tue, 13 Oct 2009 00:08:35 -0600 Message-Id: <1255414115.14484.47.camel@dc7800.home> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 7de76dd..3eeaef8 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -126,6 +126,7 @@ alloc_pci_controller (int seg) } struct pci_root_info { + struct acpi_device *bridge; struct pci_controller *controller; char *name; }; @@ -292,9 +293,20 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data) window->offset = offset; if (insert_resource(root, &window->resource)) { - printk(KERN_ERR "alloc 0x%llx-0x%llx from %s for %s failed\n", - window->resource.start, window->resource.end, - root->name, info->name); + dev_err(&info->bridge->dev, + "can't allocate host bridge window %pR\n", + &window->resource); + } else { + if (offset) + dev_info(&info->bridge->dev, "host bridge window %pR " + "(PCI address [%#llx-%#llx])\n", + &window->resource, + window->resource.start - offset, + window->resource.end - offset); + else + dev_info(&info->bridge->dev, + "host bridge window %pR\n", + &window->resource); } return AE_OK; @@ -314,8 +326,7 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl) (res->end - res->start < 16)) continue; if (j >= PCI_BUS_NUM_RESOURCES) { - printk("Ignoring range [%#llx-%#llx] (%lx)\n", - res->start, res->end, res->flags); + dev_warn(&bus->dev, "ignoring %pR (no space)\n", res); continue; } bus->resource[j++] = res; @@ -359,6 +370,7 @@ pci_acpi_scan_root(struct acpi_device *device, int domain, int bus) goto out3; sprintf(name, "PCI Bus %04x:%02x", domain, bus); + info.bridge = device; info.controller = controller; info.name = name; acpi_walk_resources(device->handle, METHOD_NAME__CRS, diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index d17d482..85419bb 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1378,8 +1378,8 @@ static unsigned long ram_alignment(resource_size_t pos) if (mb < 16) return 1024*1024; - /* To 64MB for anything above that */ - return 64*1024*1024; + /* To 32MB for anything above that */ + return 32*1024*1024; } #define MAX_RESOURCE_SIZE ((resource_size_t)-1) diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 1014eb4..6bf8091 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -7,6 +7,7 @@ #include struct pci_root_info { + struct acpi_device *bridge; char *name; unsigned int res_num; struct resource *res; @@ -107,12 +108,19 @@ setup_resource(struct acpi_resource *acpi_res, void *data) res->child = NULL; if (insert_resource(root, res)) { - printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx " - "from %s for %s\n", (unsigned long) res->start, - (unsigned long) res->end, root->name, info->name); + dev_err(&info->bridge->dev, + "can't allocate host bridge window %pR\n", res); } else { info->bus->resource[info->res_num] = res; info->res_num++; + if (addr.translation_offset) + dev_info(&info->bridge->dev, "host bridge window %pR " + "(PCI address [%#llx-%#llx])\n", + res, res->start - addr.translation_offset, + res->end - addr.translation_offset); + else + dev_info(&info->bridge->dev, + "host bridge window %pR\n", res); } return AE_OK; } @@ -124,6 +132,7 @@ get_current_resources(struct acpi_device *device, int busnum, struct pci_root_info info; size_t size; + info.bridge = device; info.bus = bus; info.res_num = 0; acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource, diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index b22d13b..e1dcd61 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -129,7 +129,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) continue; if (!r->start || pci_claim_resource(dev, idx) < 0) { - dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx); + dev_info(&dev->dev, "BAR %d: can't allocate %pR\n", idx, r); /* * Something is wrong with the region. * Invalidate the resource to prevent @@ -137,6 +137,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) * range. */ r->flags = 0; + dev_info(&dev->dev, "BAR %d: invalidated %pR\n", idx, r); } } } @@ -164,15 +165,15 @@ static void __init pcibios_allocate_resources(int pass) else disabled = !(command & PCI_COMMAND_MEMORY); if (pass == disabled) { - dev_dbg(&dev->dev, "resource %#08llx-%#08llx (f=%lx, d=%d, p=%d)\n", - (unsigned long long) r->start, - (unsigned long long) r->end, - r->flags, disabled, pass); + dev_dbg(&dev->dev, + "BAR %d: claiming %pr (d=%d, p=%d)\n", + idx, r, disabled, pass); if (pci_claim_resource(dev, idx) < 0) { - dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx); + dev_info(&dev->dev, "BAR %d: can't claim %pR\n", idx, r); /* We'll assign a new address later */ r->end -= r->start; r->start = 0; + dev_info(&dev->dev, "BAR %d: adjusted start %pR\n", idx, r); } } } @@ -182,7 +183,7 @@ static void __init pcibios_allocate_resources(int pass) /* Turn the ROM off, leave the resource region, * but keep it unregistered. */ u32 reg; - dev_dbg(&dev->dev, "disabling ROM\n"); + dev_dbg(&dev->dev, "disabling ROM %pR\n", r); r->flags &= ~IORESOURCE_ROM_ENABLE; pci_read_config_dword(dev, dev->rom_base_reg, ®); diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 7411915..6740a61 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -785,11 +785,13 @@ static int __init acpi_bus_init(void) struct kobject *acpi_kobj; +#include + static int __init acpi_init(void) { int result = 0; - + early_dump_pci_device(7, 0, 0); if (acpi_disabled) { printk(KERN_INFO PREFIX "Interpreter disabled.\n"); return -ENODEV; @@ -827,7 +829,9 @@ static int __init acpi_init(void) dmi_check_system(power_nocheck_dmi_table); acpi_scan_init(); + early_dump_pci_device(7, 0, 0); acpi_ec_init(); + early_dump_pci_device(7, 0, 0); acpi_power_init(); acpi_system_init(); acpi_debug_init(); diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 3835871..832243f 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1669,9 +1669,7 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_n return 0; err_out: - dev_warn(&pdev->dev, "BAR %d: can't reserve %s region %pR\n", - bar, - pci_resource_flags(pdev, bar) & IORESOURCE_IO ? "I/O" : "mem", + dev_warn(&pdev->dev, "BAR %d: can't reserve %pR\n", bar, &pdev->resource[bar]); return -EBUSY; } diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8105e32..0199d92 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -222,6 +222,8 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, if (!sz64) goto fail; + res->flags |= IORESOURCE_MEM_64; + if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) { dev_err(&dev->dev, "can't handle 64-bit BAR\n"); goto fail; @@ -234,14 +236,9 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, } else { res->start = l64; res->end = l64 + sz64; - dev_printk(KERN_DEBUG, &dev->dev, - "reg %x %s: %pR\n", pos, - (res->flags & IORESOURCE_PREFETCH) ? - "64bit mmio pref" : "64bit mmio", - res); + dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", + pos, res); } - - res->flags |= IORESOURCE_MEM_64; } else { sz = pci_size(l, sz, mask); @@ -251,11 +248,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, res->start = l; res->end = l + sz; - dev_printk(KERN_DEBUG, &dev->dev, "reg %x %s: %pR\n", pos, - (res->flags & IORESOURCE_IO) ? "io port" : - ((res->flags & IORESOURCE_PREFETCH) ? - "32bit mmio pref" : "32bit mmio"), - res); + dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); } out: @@ -323,7 +316,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) res->start = base; if (!res->end) res->end = limit + 0xfff; - dev_printk(KERN_DEBUG, &dev->dev, "bridge io port: %pR\n", res); + dev_printk(KERN_DEBUG, &dev->dev, "bridge window %pR\n", res); } res = child->resource[1]; @@ -335,8 +328,7 @@ 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; - dev_printk(KERN_DEBUG, &dev->dev, "bridge 32bit mmio: %pR\n", - res); + dev_printk(KERN_DEBUG, &dev->dev, "bridge window %pR\n", res); } res = child->resource[2]; @@ -375,9 +367,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) res->flags |= IORESOURCE_MEM_64; res->start = base; res->end = limit + 0xfffff; - dev_printk(KERN_DEBUG, &dev->dev, "bridge %sbit mmio pref: %pR\n", - (res->flags & PCI_PREF_RANGE_TYPE_64) ? "64" : "32", - res); + dev_printk(KERN_DEBUG, &dev->dev, "bridge window %pR\n", res); } } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index efa6534..d996a2f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -357,7 +357,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, pcibios_bus_to_resource(dev, res, &bus_region); pci_claim_resource(dev, nr); - dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name); + dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name); } } diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 0959430..18711cd 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -71,53 +71,62 @@ static void pbus_assign_resources_sorted(const struct pci_bus *bus) void pci_setup_cardbus(struct pci_bus *bus) { struct pci_dev *bridge = bus->self; + struct resource *res; struct pci_bus_region region; dev_info(&bridge->dev, "CardBus bridge, secondary bus %04x:%02x\n", pci_domain_nr(bus), bus->number); - pcibios_resource_to_bus(bridge, ®ion, bus->resource[0]); - if (bus->resource[0]->flags & IORESOURCE_IO) { + res = bus->resource[0]; + if (res->flags & IORESOURCE_IO) { /* * The IO resource is allocated a range twice as large as it * would normally need. This allows us to set both IO regs. */ - dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + pcibios_resource_to_bus(bridge, ®ion, res); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#08lx-%#08lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); pci_write_config_dword(bridge, PCI_CB_IO_BASE_0, region.start); pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_0, region.end); } - pcibios_resource_to_bus(bridge, ®ion, bus->resource[1]); - if (bus->resource[1]->flags & IORESOURCE_IO) { - dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + res = bus->resource[1]; + if (res->flags & IORESOURCE_IO) { + pcibios_resource_to_bus(bridge, ®ion, res); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#08lx-%#08lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); pci_write_config_dword(bridge, PCI_CB_IO_BASE_1, region.start); pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_1, region.end); } - pcibios_resource_to_bus(bridge, ®ion, bus->resource[2]); - if (bus->resource[2]->flags & IORESOURCE_MEM) { - dev_info(&bridge->dev, " PREFETCH window: %#08lx-%#08lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + res = bus->resource[2]; + if (res->flags & IORESOURCE_MEM) { + pcibios_resource_to_bus(bridge, ®ion, res); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#08lx-%#08lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0, region.start); pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_0, region.end); } - pcibios_resource_to_bus(bridge, ®ion, bus->resource[3]); - if (bus->resource[3]->flags & IORESOURCE_MEM) { - dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + res = bus->resource[3]; + if (res->flags & IORESOURCE_MEM) { + pcibios_resource_to_bus(bridge, ®ion, res); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#08lx-%#08lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1, region.start); pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_1, @@ -140,6 +149,7 @@ EXPORT_SYMBOL(pci_setup_cardbus); static void pci_setup_bridge(struct pci_bus *bus) { struct pci_dev *bridge = bus->self; + struct resource *res; struct pci_bus_region region; u32 l, bu, lu, io_upper16; int pref_mem64; @@ -151,23 +161,25 @@ static void pci_setup_bridge(struct pci_bus *bus) pci_domain_nr(bus), bus->number); /* Set up the top and bottom of the PCI I/O segment for this bus. */ - pcibios_resource_to_bus(bridge, ®ion, bus->resource[0]); - if (bus->resource[0]->flags & IORESOURCE_IO) { + res = bus->resource[0]; + if (res->flags & IORESOURCE_IO) { + pcibios_resource_to_bus(bridge, ®ion, res); pci_read_config_dword(bridge, PCI_IO_BASE, &l); l &= 0xffff0000; l |= (region.start >> 8) & 0x00f0; l |= region.end & 0xf000; /* Set up upper 16 bits of I/O base/limit. */ io_upper16 = (region.end & 0xffff0000) | (region.start >> 16); - dev_info(&bridge->dev, " IO window: %#04lx-%#04lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#04lx-%#04lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); } else { /* Clear upper 16 bits of I/O base/limit. */ io_upper16 = 0; l = 0x00f0; - dev_info(&bridge->dev, " IO window: disabled\n"); + dev_info(&bridge->dev, " bridge window [io disabled]\n"); } /* Temporarily disable the I/O range before updating PCI_IO_BASE. */ pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff); @@ -178,17 +190,19 @@ static void pci_setup_bridge(struct pci_bus *bus) /* Set up the top and bottom of the PCI Memory segment for this bus. */ - pcibios_resource_to_bus(bridge, ®ion, bus->resource[1]); - if (bus->resource[1]->flags & IORESOURCE_MEM) { + res = bus->resource[1]; + if (res->flags & IORESOURCE_MEM) { + pcibios_resource_to_bus(bridge, ®ion, res); l = (region.start >> 16) & 0xfff0; l |= region.end & 0xfff00000; - dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n", - (unsigned long)region.start, - (unsigned long)region.end); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#08lx-%#08lx)\n", + res, (unsigned long)region.start, + (unsigned long)region.end); } else { l = 0x0000fff0; - dev_info(&bridge->dev, " MEM window: disabled\n"); + dev_info(&bridge->dev, " bridge window [mem disabled]\n"); } pci_write_config_dword(bridge, PCI_MEMORY_BASE, l); @@ -200,24 +214,24 @@ static void pci_setup_bridge(struct pci_bus *bus) /* Set up PREF base/limit. */ pref_mem64 = 0; bu = lu = 0; - pcibios_resource_to_bus(bridge, ®ion, bus->resource[2]); - if (bus->resource[2]->flags & IORESOURCE_PREFETCH) { - int width = 8; + res = bus->resource[2]; + if (res->flags & IORESOURCE_PREFETCH) { + pcibios_resource_to_bus(bridge, ®ion, res); l = (region.start >> 16) & 0xfff0; l |= region.end & 0xfff00000; - if (bus->resource[2]->flags & IORESOURCE_MEM_64) { + if (res->flags & IORESOURCE_MEM_64) { pref_mem64 = 1; bu = upper_32_bits(region.start); lu = upper_32_bits(region.end); - width = 16; } - dev_info(&bridge->dev, " PREFETCH window: %#0*llx-%#0*llx\n", - width, (unsigned long long)region.start, - width, (unsigned long long)region.end); + dev_info(&bridge->dev, + " bridge window %pR (PCI address %#llx-%#llx)\n", + res, (unsigned long long)region.start, + (unsigned long long)region.end); } else { l = 0x0000fff0; - dev_info(&bridge->dev, " PREFETCH window: disabled\n"); + dev_info(&bridge->dev, " bridge window [mem pref disabled]\n"); } pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l); @@ -399,7 +413,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, align = pci_resource_alignment(dev, r); order = __ffs(align) - 20; if (order > 11) { - dev_warn(&dev->dev, "BAR %d bad alignment %llx: " + dev_warn(&dev->dev, "BAR %d: bad alignment %llx: " "%pR\n", i, (unsigned long long)align, r); r->flags = 0; continue; @@ -579,6 +593,7 @@ void __ref pci_bus_assign_resources(const struct pci_bus *bus) break; } } + dev_dbg(&bus->dev, "%s done\n", __func__); } EXPORT_SYMBOL(pci_bus_assign_resources); @@ -591,10 +606,7 @@ static void pci_bus_dump_res(struct pci_bus *bus) if (!res || !res->end) continue; - dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i, - (res->flags & IORESOURCE_IO) ? "io: " : - ((res->flags & IORESOURCE_PREFETCH)? "pref mem":"mem:"), - res); + dev_printk(KERN_DEBUG, &bus->dev, "resource %d %pR\n", i, res); } } diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index c54526b..58f4892 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -51,12 +51,6 @@ void pci_update_resource(struct pci_dev *dev, int resno) pcibios_resource_to_bus(dev, ®ion, res); - dev_dbg(&dev->dev, "BAR %d: got res %pR bus [%#llx-%#llx] " - "flags %#lx\n", resno, res, - (unsigned long long)region.start, - (unsigned long long)region.end, - (unsigned long)res->flags); - new = region.start | (res->flags & PCI_REGION_FLAG_MASK); if (res->flags & IORESOURCE_IO) mask = (u32)PCI_BASE_ADDRESS_IO_MASK; @@ -64,11 +58,16 @@ void pci_update_resource(struct pci_dev *dev, int resno) mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; reg = pci_resource_bar(dev, resno, &type); - if (!reg) + if (!reg) { + dev_dbg(&dev->dev, "no BAR (resno %d)\n", resno); return; + } if (type != pci_bar_unknown) { - if (!(res->flags & IORESOURCE_ROM_ENABLE)) + if (!(res->flags & IORESOURCE_ROM_ENABLE)) { + dev_dbg(&dev->dev, "ROM not enabled (type %d flags 0x%lx)\n", + type, res->flags); return; + } new |= PCI_ROM_ADDRESS_ENABLE; } @@ -91,9 +90,10 @@ void pci_update_resource(struct pci_dev *dev, int resno) } } res->flags &= ~IORESOURCE_UNSET; - dev_dbg(&dev->dev, "BAR %d: moved to bus [%#llx-%#llx] flags %#lx\n", - resno, (unsigned long long)region.start, - (unsigned long long)region.end, res->flags); + dev_info(&dev->dev, + "BAR %d: moved to %pR (PCI address [%#llx-%#llx])\n", + resno, res, (unsigned long long)region.start, + (unsigned long long)region.end); } int pci_claim_resource(struct pci_dev *dev, int resource) @@ -108,14 +108,10 @@ int pci_claim_resource(struct pci_dev *dev, int resource) if (root != NULL) err = request_resource(root, res); - if (err) { - const char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge"; - dev_err(&dev->dev, "BAR %d: %s of %s %pR\n", - resource, + if (err) + dev_err(&dev->dev, "BAR %d: %s %pR\n", resource, root ? "address space collision on" : - "no parent found for", - dtype, res); - } + "no parent found for", res); return err; } @@ -124,7 +120,7 @@ EXPORT_SYMBOL(pci_claim_resource); #ifdef CONFIG_PCI_QUIRKS void pci_disable_bridge_window(struct pci_dev *dev) { - dev_dbg(&dev->dev, "Disabling bridge window.\n"); + dev_info(&dev->dev, "disabling bridge windows\n"); /* MMIO Base/Limit */ pci_write_config_dword(dev, PCI_MEMORY_BASE, 0x0000fff0); @@ -164,6 +160,7 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev, } if (!ret) { + dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res); res->flags &= ~IORESOURCE_STARTALIGN; if (resno < PCI_BRIDGE_RESOURCES) pci_update_resource(dev, resno); @@ -181,9 +178,8 @@ int pci_assign_resource(struct pci_dev *dev, int resno) align = pci_resource_alignment(dev, res); if (!align) { - dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus " - "alignment) %pR flags %#lx\n", - resno, res, res->flags); + dev_info(&dev->dev, "BAR %d: can't allocate %pR " + "(bogus alignment)\n", resno, res); return -EINVAL; } @@ -199,8 +195,8 @@ int pci_assign_resource(struct pci_dev *dev, int resno) } if (ret) - dev_info(&dev->dev, "BAR %d: can't allocate %s resource %pR\n", - resno, res->flags & IORESOURCE_IO ? "I/O" : "mem", res); + dev_info(&dev->dev, "BAR %d: can't allocate %pR\n", + resno, res); return ret; } @@ -225,9 +221,8 @@ void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) r_align = pci_resource_alignment(dev, r); if (!r_align) { - dev_warn(&dev->dev, "BAR %d: bogus alignment " - "%pR flags %#lx\n", - i, r, r->flags); + dev_warn(&dev->dev, "BAR %d: %pR has bogus alignment\n", + i, r); continue; } for (list = head; ; list = list->next) { diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index 8473fe5..dfbd5a6 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -285,15 +285,10 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) * the PCI region, and that might prevent a PCI * driver from requesting its resources. */ - dev_warn(&dev->dev, "%s resource " - "(0x%llx-0x%llx) overlaps %s BAR %d " - "(0x%llx-0x%llx), disabling\n", - pnp_resource_type_name(res), - (unsigned long long) pnp_start, - (unsigned long long) pnp_end, - pci_name(pdev), i, - (unsigned long long) pci_start, - (unsigned long long) pci_end); + dev_warn(&dev->dev, + "disabling %pR because it overlaps " + "%s BAR %d %pR\n", res, + pci_name(pdev), i, &pdev->resource[i]); res->flags |= IORESOURCE_DISABLED; } } diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index ba97654..64d0596 100644 --- a/drivers/pnp/resource.c +++ b/drivers/pnp/resource.c @@ -517,7 +517,7 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq, res->start = irq; res->end = irq; - pnp_dbg(&dev->dev, " add irq %d flags %#x\n", irq, flags); + pnp_dbg(&dev->dev, " add %pr\n", res); return pnp_res; } @@ -538,7 +538,7 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, res->start = dma; res->end = dma; - pnp_dbg(&dev->dev, " add dma %d flags %#x\n", dma, flags); + pnp_dbg(&dev->dev, " add %pr\n", res); return pnp_res; } @@ -562,8 +562,7 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, res->start = start; res->end = end; - pnp_dbg(&dev->dev, " add io %#llx-%#llx flags %#x\n", - (unsigned long long) start, (unsigned long long) end, flags); + pnp_dbg(&dev->dev, " add %pr\n", res); return pnp_res; } @@ -587,8 +586,7 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev, res->start = start; res->end = end; - pnp_dbg(&dev->dev, " add mem %#llx-%#llx flags %#x\n", - (unsigned long long) start, (unsigned long long) end, flags); + pnp_dbg(&dev->dev, " add %pr\n", res); return pnp_res; } diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c index 63087d5..9585c1c 100644 --- a/drivers/pnp/support.c +++ b/drivers/pnp/support.c @@ -75,47 +75,14 @@ char *pnp_resource_type_name(struct resource *res) void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc) { - char buf[128]; - int len; struct pnp_resource *pnp_res; - struct resource *res; - if (list_empty(&dev->resources)) { + if (list_empty(&dev->resources)) pnp_dbg(&dev->dev, "%s: no current resources\n", desc); - return; - } - - pnp_dbg(&dev->dev, "%s: current resources:\n", desc); - list_for_each_entry(pnp_res, &dev->resources, list) { - res = &pnp_res->res; - len = 0; - - len += scnprintf(buf + len, sizeof(buf) - len, " %-3s ", - pnp_resource_type_name(res)); - - if (res->flags & IORESOURCE_DISABLED) { - pnp_dbg(&dev->dev, "%sdisabled\n", buf); - continue; - } - - switch (pnp_resource_type(res)) { - case IORESOURCE_IO: - case IORESOURCE_MEM: - len += scnprintf(buf + len, sizeof(buf) - len, - "%#llx-%#llx flags %#lx", - (unsigned long long) res->start, - (unsigned long long) res->end, - res->flags); - break; - case IORESOURCE_IRQ: - case IORESOURCE_DMA: - len += scnprintf(buf + len, sizeof(buf) - len, - "%lld flags %#lx", - (unsigned long long) res->start, - res->flags); - break; - } - pnp_dbg(&dev->dev, "%s\n", buf); + else { + pnp_dbg(&dev->dev, "%s: current resources:\n", desc); + list_for_each_entry(pnp_res, &dev->resources, list) + pnp_dbg(&dev->dev, "%pr\n", &pnp_res->res); } } diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c index 59b9092..49c1720 100644 --- a/drivers/pnp/system.c +++ b/drivers/pnp/system.c @@ -22,11 +22,11 @@ static const struct pnp_device_id pnp_dev_table[] = { {"", 0} }; -static void reserve_range(struct pnp_dev *dev, resource_size_t start, - resource_size_t end, int port) +static void reserve_range(struct pnp_dev *dev, struct resource *r, int port) { char *regionid; const char *pnpid = dev_name(&dev->dev); + resource_size_t start = r->start, end = r->end; struct resource *res; regionid = kmalloc(16, GFP_KERNEL); @@ -48,10 +48,8 @@ static void reserve_range(struct pnp_dev *dev, resource_size_t start, * example do reserve stuff they know about too, so we may well * have double reservations. */ - dev_info(&dev->dev, "%s range 0x%llx-0x%llx %s reserved\n", - port ? "ioport" : "iomem", - (unsigned long long) start, (unsigned long long) end, - res ? "has been" : "could not be"); + dev_info(&dev->dev, "%pR %s reserved\n", r, + res ? "has been" : "could not be"); } static void reserve_resources_of_dev(struct pnp_dev *dev) @@ -77,14 +75,14 @@ static void reserve_resources_of_dev(struct pnp_dev *dev) if (res->end < res->start) continue; /* invalid */ - reserve_range(dev, res->start, res->end, 1); + reserve_range(dev, res, 1); } for (i = 0; (res = pnp_get_resource(dev, IORESOURCE_MEM, i)); i++) { if (res->flags & IORESOURCE_DISABLED) continue; - reserve_range(dev, res->start, res->end, 0); + reserve_range(dev, res, 0); } } diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 33bed5e..6438cd5 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -595,37 +595,89 @@ static char *symbol_string(char *buf, char *end, void *ptr, } static char *resource_string(char *buf, char *end, struct resource *res, - struct printf_spec spec) + struct printf_spec spec, const char *fmt) { #ifndef IO_RSRC_PRINTK_SIZE -#define IO_RSRC_PRINTK_SIZE 4 +#define IO_RSRC_PRINTK_SIZE 6 #endif #ifndef MEM_RSRC_PRINTK_SIZE -#define MEM_RSRC_PRINTK_SIZE 8 +#define MEM_RSRC_PRINTK_SIZE 10 #endif - struct printf_spec num_spec = { + struct printf_spec hex_spec = { .base = 16, .precision = -1, .flags = SPECIAL | SMALL | ZEROPAD, }; - /* room for the actual numbers, the two "0x", -, [, ] and the final zero */ - char sym[4*sizeof(resource_size_t) + 8]; + struct printf_spec dec_spec = { + .base = 10, + .precision = -1, + .flags = 0, + }; + struct printf_spec str_spec = { + .field_width = -1, + .precision = 10, + .flags = LEFT, + }; + struct printf_spec flag_spec = { + .base = 16, + .precision = -1, + .flags = SPECIAL | SMALL, + }; + + /* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8) + * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */ +#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4) +#define FLAG_BUF_SIZE (2 * sizeof(res->flags)) +#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref disabled]") +#define RAW_BUF_SIZE sizeof("[mem - flags 0x]") + char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE, + 2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)]; + char *p = sym, *pend = sym + sizeof(sym); - int size = -1; + int size = -1, addr = 0; + int decode = (fmt[0] == 'R') ? 1 : 0; - if (res->flags & IORESOURCE_IO) + if (res->flags & IORESOURCE_IO) { size = IO_RSRC_PRINTK_SIZE; - else if (res->flags & IORESOURCE_MEM) + addr = 1; + } else if (res->flags & IORESOURCE_MEM) { size = MEM_RSRC_PRINTK_SIZE; + addr = 1; + } *p++ = '['; - num_spec.field_width = size; - p = number(p, pend, res->start, num_spec); - *p++ = '-'; - p = number(p, pend, res->end, num_spec); + if (res->flags & IORESOURCE_IO) + p = string(p, pend, "io ", str_spec); + else if (res->flags & IORESOURCE_MEM) + p = string(p, pend, "mem ", str_spec); + else if (res->flags & IORESOURCE_IRQ) + p = string(p, pend, "irq ", str_spec); + else if (res->flags & IORESOURCE_DMA) + p = string(p, pend, "dma ", str_spec); + else { + p = string(p, pend, "??? ", str_spec); + decode = 0; + } + hex_spec.field_width = size; + p = number(p, pend, res->start, addr ? hex_spec : dec_spec); + if (res->start != res->end) { + *p++ = '-'; + p = number(p, pend, res->end, addr ? hex_spec : dec_spec); + } + if (decode) { + if (res->flags & IORESOURCE_MEM_64) + p = string(p, pend, " 64bit", str_spec); + if (res->flags & IORESOURCE_PREFETCH) + p = string(p, pend, " pref", str_spec); + if (res->flags & IORESOURCE_DISABLED) + p = string(p, pend, " disabled", str_spec); + } else { + p = string(p, pend, " flags ", str_spec); + p = number(p, pend, res->flags, flag_spec); + } *p++ = ']'; - *p = 0; + *p = '\0'; return string(buf, end, sym, spec); } @@ -801,8 +853,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr, * - 'f' For simple symbolic function names without offset * - 'S' For symbolic direct pointers with offset * - 's' For symbolic direct pointers without offset - * - 'R' For a struct resource pointer, it prints the range of - * addresses (not the name nor the flags) + * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] + * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201] * - 'M' For a 6-byte MAC address, it prints the address in the * usual colon-separated hex notation * - 'm' For a 6-byte MAC address, it prints the hex address without colons @@ -833,7 +885,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, case 'S': return symbol_string(buf, end, ptr, spec, *fmt); case 'R': - return resource_string(buf, end, ptr, spec); + case 'r': + return resource_string(buf, end, ptr, spec, fmt); case 'M': /* Colon separated: 00:01:02:03:04:05 */ case 'm': /* Contiguous: 000102030405 */ return mac_address_string(buf, end, ptr, spec, fmt);