Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756127Ab3JKSbB (ORCPT ); Fri, 11 Oct 2013 14:31:01 -0400 Received: from mail-ie0-f176.google.com ([209.85.223.176]:33253 "EHLO mail-ie0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753438Ab3JKSbA (ORCPT ); Fri, 11 Oct 2013 14:31:00 -0400 MIME-Version: 1.0 In-Reply-To: <1381493941-4650-5-git-send-email-tianyu.lan@intel.com> References: <1381493941-4650-1-git-send-email-tianyu.lan@intel.com> <1381493941-4650-5-git-send-email-tianyu.lan@intel.com> Date: Fri, 11 Oct 2013 11:30:58 -0700 X-Google-Sender-Auth: UBofDvr0uphR-cZH9ajXeAN2lDE Message-ID: Subject: Re: [Resend PATCH 4/5] X86/PCI/ACPI: Rework setup_resource() via functions ACPI resource functions From: Yinghai Lu To: Lan Tianyu Cc: Bjorn Helgaas , Len Brown , "Rafael J. Wysocki" , Linux Kernel Mailing List , ACPI Devel Maling List , "the arch/x86 maintainers" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5983 Lines: 150 On Fri, Oct 11, 2013 at 5:19 AM, wrote: > From: Lan Tianyu > > Using ACPI resource functions to convert ACPI resource to generic resource > instead of resource_to_addr(). Remove resource_to_addr(). > > Signed-off-by: Lan Tianyu for 1-4 Acked-by: Yinghai Lu > --- > arch/x86/pci/acpi.c | 81 ++++++++--------------------------------------------- > 1 file changed, 12 insertions(+), 69 deletions(-) > > diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c > index d641897..f4290a1 100644 > --- a/arch/x86/pci/acpi.c > +++ b/arch/x86/pci/acpi.c > @@ -219,62 +219,15 @@ static void teardown_mcfg_map(struct pci_root_info *info) > #endif > > static acpi_status > -resource_to_addr(struct acpi_resource *resource, > - struct acpi_resource_address64 *addr) > -{ > - acpi_status status; > - struct acpi_resource_memory24 *memory24; > - struct acpi_resource_memory32 *memory32; > - struct acpi_resource_fixed_memory32 *fixed_memory32; > - > - memset(addr, 0, sizeof(*addr)); > - switch (resource->type) { > - case ACPI_RESOURCE_TYPE_MEMORY24: > - memory24 = &resource->data.memory24; > - addr->resource_type = ACPI_MEMORY_RANGE; > - addr->minimum = memory24->minimum; > - addr->address_length = memory24->address_length; > - addr->maximum = addr->minimum + addr->address_length - 1; > - return AE_OK; > - case ACPI_RESOURCE_TYPE_MEMORY32: > - memory32 = &resource->data.memory32; > - addr->resource_type = ACPI_MEMORY_RANGE; > - addr->minimum = memory32->minimum; > - addr->address_length = memory32->address_length; > - addr->maximum = addr->minimum + addr->address_length - 1; > - return AE_OK; > - case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: > - fixed_memory32 = &resource->data.fixed_memory32; > - addr->resource_type = ACPI_MEMORY_RANGE; > - addr->minimum = fixed_memory32->address; > - addr->address_length = fixed_memory32->address_length; > - addr->maximum = addr->minimum + addr->address_length - 1; > - return AE_OK; > - case ACPI_RESOURCE_TYPE_ADDRESS16: > - case ACPI_RESOURCE_TYPE_ADDRESS32: > - case ACPI_RESOURCE_TYPE_ADDRESS64: > - status = acpi_resource_to_address64(resource, addr); > - if (ACPI_SUCCESS(status) && > - (addr->resource_type == ACPI_MEMORY_RANGE || > - addr->resource_type == ACPI_IO_RANGE) && > - addr->address_length > 0) { > - return AE_OK; > - } > - break; > - } > - return AE_ERROR; > -} > - > -static acpi_status > count_resource(struct acpi_resource *acpi_res, void *data) > { > struct pci_root_info *info = data; > - struct acpi_resource_address64 addr; > - acpi_status status; > + struct resource res; > > - status = resource_to_addr(acpi_res, &addr); > - if (ACPI_SUCCESS(status)) > + if (acpi_dev_resource_address_space(acpi_res, &res) > + || acpi_dev_resource_memory(acpi_res, &res)) > info->res_num++; > + > return AE_OK; > } > > @@ -282,27 +235,18 @@ static acpi_status > setup_resource(struct acpi_resource *acpi_res, void *data) > { > struct pci_root_info *info = data; > - struct resource *res; > + struct resource *res = &info->res[info->res_num]; > struct acpi_resource_address64 addr; > - acpi_status status; > - unsigned long flags; > u64 start, orig_end, end; > > - status = resource_to_addr(acpi_res, &addr); > - if (!ACPI_SUCCESS(status)) > - return AE_OK; > + memset(&addr, 0x00, sizeof(addr)); > > - if (addr.resource_type == ACPI_MEMORY_RANGE) { > - flags = IORESOURCE_MEM; > - if (addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY) > - flags |= IORESOURCE_PREFETCH; > - } else if (addr.resource_type == ACPI_IO_RANGE) { > - flags = IORESOURCE_IO; > - } else > + if (!(acpi_dev_resource_address_space_full(acpi_res, &addr, res) > + || acpi_dev_resource_memory(acpi_res, res))) > return AE_OK; > > - start = addr.minimum + addr.translation_offset; > - orig_end = end = addr.maximum + addr.translation_offset; > + start = res->start; > + orig_end = end = res->end; > > /* Exclude non-addressable range or non-addressable portion of range */ > end = min(end, (u64)iomem_resource.end); > @@ -310,6 +254,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data) > dev_info(&info->bridge->dev, > "host bridge window [%#llx-%#llx] " > "(ignored, not CPU addressable)\n", start, orig_end); > + memset(&info->res[info->res_num], 0x00, sizeof(*res)); > return AE_OK; > } else if (orig_end != end) { > dev_info(&info->bridge->dev, > @@ -318,11 +263,9 @@ setup_resource(struct acpi_resource *acpi_res, void *data) > start, orig_end, end + 1, orig_end); > } > > - res = &info->res[info->res_num]; > res->name = info->name; > - res->flags = flags; > - res->start = start; > res->end = end; > + > info->res_offset[info->res_num] = addr.translation_offset; > info->res_num++; > > -- > 1.8.2.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/