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authorDavid S. Miller <davem@davemloft.net>2010-05-12 03:05:35 -0400
committerDavid S. Miller <davem@davemloft.net>2010-05-12 03:05:35 -0400
commit278554bd6579206921f5d8a523649a7a57f8850d (patch)
tree4e6c527daf0910e455b3aa72e2c96b0479e430be /arch/x86/pci
parent5a147e8bf982f9dd414c1dd751fe02c1942506b2 (diff)
parentcea0d767c29669bf89f86e4aee46ef462d2ebae8 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/net/wireless/ath/ar9170/usb.c drivers/scsi/iscsi_tcp.c net/ipv4/ipmr.c
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/acpi.c84
-rw-r--r--arch/x86/pci/i386.c3
2 files changed, 42 insertions, 45 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c7b1ebfb7da7..31930fd30ea9 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -66,14 +66,44 @@ resource_to_addr(struct acpi_resource *resource,
66 struct acpi_resource_address64 *addr) 66 struct acpi_resource_address64 *addr)
67{ 67{
68 acpi_status status; 68 acpi_status status;
69 69 struct acpi_resource_memory24 *memory24;
70 status = acpi_resource_to_address64(resource, addr); 70 struct acpi_resource_memory32 *memory32;
71 if (ACPI_SUCCESS(status) && 71 struct acpi_resource_fixed_memory32 *fixed_memory32;
72 (addr->resource_type == ACPI_MEMORY_RANGE || 72
73 addr->resource_type == ACPI_IO_RANGE) && 73 memset(addr, 0, sizeof(*addr));
74 addr->address_length > 0 && 74 switch (resource->type) {
75 addr->producer_consumer == ACPI_PRODUCER) { 75 case ACPI_RESOURCE_TYPE_MEMORY24:
76 memory24 = &resource->data.memory24;
77 addr->resource_type = ACPI_MEMORY_RANGE;
78 addr->minimum = memory24->minimum;
79 addr->address_length = memory24->address_length;
80 addr->maximum = addr->minimum + addr->address_length - 1;
81 return AE_OK;
82 case ACPI_RESOURCE_TYPE_MEMORY32:
83 memory32 = &resource->data.memory32;
84 addr->resource_type = ACPI_MEMORY_RANGE;
85 addr->minimum = memory32->minimum;
86 addr->address_length = memory32->address_length;
87 addr->maximum = addr->minimum + addr->address_length - 1;
76 return AE_OK; 88 return AE_OK;
89 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
90 fixed_memory32 = &resource->data.fixed_memory32;
91 addr->resource_type = ACPI_MEMORY_RANGE;
92 addr->minimum = fixed_memory32->address;
93 addr->address_length = fixed_memory32->address_length;
94 addr->maximum = addr->minimum + addr->address_length - 1;
95 return AE_OK;
96 case ACPI_RESOURCE_TYPE_ADDRESS16:
97 case ACPI_RESOURCE_TYPE_ADDRESS32:
98 case ACPI_RESOURCE_TYPE_ADDRESS64:
99 status = acpi_resource_to_address64(resource, addr);
100 if (ACPI_SUCCESS(status) &&
101 (addr->resource_type == ACPI_MEMORY_RANGE ||
102 addr->resource_type == ACPI_IO_RANGE) &&
103 addr->address_length > 0) {
104 return AE_OK;
105 }
106 break;
77 } 107 }
78 return AE_ERROR; 108 return AE_ERROR;
79} 109}
@@ -91,30 +121,6 @@ count_resource(struct acpi_resource *acpi_res, void *data)
91 return AE_OK; 121 return AE_OK;
92} 122}
93 123
94static void
95align_resource(struct acpi_device *bridge, struct resource *res)
96{
97 int align = (res->flags & IORESOURCE_MEM) ? 16 : 4;
98
99 /*
100 * Host bridge windows are not BARs, but the decoders on the PCI side
101 * that claim this address space have starting alignment and length
102 * constraints, so fix any obvious BIOS goofs.
103 */
104 if (!IS_ALIGNED(res->start, align)) {
105 dev_printk(KERN_DEBUG, &bridge->dev,
106 "host bridge window %pR invalid; "
107 "aligning start to %d-byte boundary\n", res, align);
108 res->start &= ~(align - 1);
109 }
110 if (!IS_ALIGNED(res->end + 1, align)) {
111 dev_printk(KERN_DEBUG, &bridge->dev,
112 "host bridge window %pR invalid; "
113 "aligning end to %d-byte boundary\n", res, align);
114 res->end = ALIGN(res->end, align) - 1;
115 }
116}
117
118static acpi_status 124static acpi_status
119setup_resource(struct acpi_resource *acpi_res, void *data) 125setup_resource(struct acpi_resource *acpi_res, void *data)
120{ 126{
@@ -124,7 +130,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
124 acpi_status status; 130 acpi_status status;
125 unsigned long flags; 131 unsigned long flags;
126 struct resource *root, *conflict; 132 struct resource *root, *conflict;
127 u64 start, end, max_len; 133 u64 start, end;
128 134
129 status = resource_to_addr(acpi_res, &addr); 135 status = resource_to_addr(acpi_res, &addr);
130 if (!ACPI_SUCCESS(status)) 136 if (!ACPI_SUCCESS(status))
@@ -141,19 +147,8 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
141 } else 147 } else
142 return AE_OK; 148 return AE_OK;
143 149
144 max_len = addr.maximum - addr.minimum + 1;
145 if (addr.address_length > max_len) {
146 dev_printk(KERN_DEBUG, &info->bridge->dev,
147 "host bridge window length %#llx doesn't fit in "
148 "%#llx-%#llx, trimming\n",
149 (unsigned long long) addr.address_length,
150 (unsigned long long) addr.minimum,
151 (unsigned long long) addr.maximum);
152 addr.address_length = max_len;
153 }
154
155 start = addr.minimum + addr.translation_offset; 150 start = addr.minimum + addr.translation_offset;
156 end = start + addr.address_length - 1; 151 end = addr.maximum + addr.translation_offset;
157 152
158 res = &info->res[info->res_num]; 153 res = &info->res[info->res_num];
159 res->name = info->name; 154 res->name = info->name;
@@ -161,7 +156,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
161 res->start = start; 156 res->start = start;
162 res->end = end; 157 res->end = end;
163 res->child = NULL; 158 res->child = NULL;
164 align_resource(info->bridge, res);
165 159
166 if (!pci_use_crs) { 160 if (!pci_use_crs) {
167 dev_printk(KERN_DEBUG, &info->bridge->dev, 161 dev_printk(KERN_DEBUG, &info->bridge->dev,
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 46fd43f79103..97da2ba9344b 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -72,6 +72,9 @@ pcibios_align_resource(void *data, const struct resource *res,
72 return start; 72 return start;
73 if (start & 0x300) 73 if (start & 0x300)
74 start = (start + 0x3ff) & ~0x3ff; 74 start = (start + 0x3ff) & ~0x3ff;
75 } else if (res->flags & IORESOURCE_MEM) {
76 if (start < BIOS_END)
77 start = BIOS_END;
75 } 78 }
76 return start; 79 return start;
77} 80}