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Groups > linux.kernel > #1485306

[PATCH v14 08/17] sparc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in OF parsing

From Yinghai Lu <yinghai@kernel.org>
Newsgroups linux.kernel
Subject [PATCH v14 08/17] sparc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in OF parsing
Date 2016-09-16 22:10 +0200
Message-ID <si7Cq-13S-29@gated-at.bofh.it> (permalink)
References <si7Cp-13S-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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For device resource with PREF bit setting under bridge 64-bit pref resource,
we need to make sure only set PREF for 64bit resource.

so this patch set IORESOUCE_MEM_64 for 64bit resource during OF device
resource flags parsing.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=96261
Link: https://bugzilla.kernel.org/show_bug.cgi?id=96241
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Tested-by: Khalid Aziz <khalid.aziz@oracle.com>
---
 arch/sparc/kernel/of_device_32.c | 5 +++--
 arch/sparc/kernel/of_device_64.c | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 185aa96..3e9f273 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -83,11 +83,12 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
 	case 0x01:
 		flags |= IORESOURCE_IO;
 		break;
-
 	case 0x02: /* 32 bits */
-	case 0x03: /* 64 bits */
 		flags |= IORESOURCE_MEM;
 		break;
+	case 0x03: /* 64 bits */
+		flags |= IORESOURCE_MEM | IORESOURCE_MEM_64;
+		break;
 	}
 	if (w & 0x40000000)
 		flags |= IORESOURCE_PREFETCH;
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 7bbdc26..defee61 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -146,11 +146,12 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
 	case 0x01:
 		flags |= IORESOURCE_IO;
 		break;
-
 	case 0x02: /* 32 bits */
-	case 0x03: /* 64 bits */
 		flags |= IORESOURCE_MEM;
 		break;
+	case 0x03: /* 64 bits */
+		flags |= IORESOURCE_MEM | IORESOURCE_MEM_64;
+		break;
 	}
 	if (w & 0x40000000)
 		flags |= IORESOURCE_PREFETCH;
-- 
2.8.3

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Thread

[PATCH v14 00/17] PCI: Fixup for 64bit resource with sparc Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 10/17] powerpc/PCI: Keep resource idx order with bridge register number Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 08/17] sparc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in OF parsing Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 02/17] PCI: Let pci_mmap_page_range() take resource address Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 13/17] PCI: Check pref compatible bit for mem64 resource of PCIe device Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 03/17] PCI: Remove __pci_mmap_make_offset() Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 01/17] PCI: Fix proc mmap on sparc Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 06/17] PCI: Add pci_find_bus_resource() Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 12/17] OF/PCI: Add IORESOURCE_MEM_64 for 64-bit resource Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 05/17] sparc/PCI: Use correct offset for bus address to resource Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 16/17] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64 Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 17/17] PCI: Restore pref MMIO allocation logic for host bridge without mmio64 Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:10 +0200
  [PATCH v14 15/17] PCI: Add has_mem64 for struct host_bridge Yinghai Lu <yinghai@kernel.org> - 2016-09-16 22:20 +0200
  [PATCH v14 07/17] sparc/PCI: Reserve legacy mmio after PCI mmio Yinghai Lu <yinghai@kernel.org> - 2016-09-16 23:10 +0200

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