diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 21:14:24 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 21:14:24 -0400 |
commit | 1d9b9f6a53d77ed801ba875f937d6dabbfc381ce (patch) | |
tree | 36ea93b80a444c3b37111e352790ebc07f29379f /drivers | |
parent | a3ad7f128c637b7612ebeacb1f85fec933bb1195 (diff) | |
parent | 12c0b20fa4afb5c8a377d6987fb2dcf353e1dce1 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (21 commits)
x86/PCI: use dev_printk when possible
PCI: add D3 power state avoidance quirk
PCI: fix bogus "'device' may be used uninitialized" warning in pci_slot
PCI: add an option to allow ASPM enabled forcibly
PCI: disable ASPM on pre-1.1 PCIe devices
PCI: disable ASPM per ACPI FADT setting
PCI MSI: Don't disable MSIs if the mask bit isn't supported
PCI: handle 64-bit resources better on 32-bit machines
PCI: rewrite PCI BAR reading code
PCI: document pci_target_state
PCI hotplug: fix typo in pcie hotplug output
x86 gart: replace to_pages macro with iommu_num_pages
x86, AMD IOMMU: replace to_pages macro with iommu_num_pages
iommu: add iommu_num_pages helper function
dma-coherent: add documentation to new interfaces
Cris: convert to using generic dma-coherent mem allocator
Sh: use generic per-device coherent dma allocator
ARM: support generic per-device coherent dma mem
Generic dma-coherent: fix DMA_MEMORY_EXCLUSIVE
x86: use generic per-device dma coherent allocator
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/acpi/pci_slot.c | 18 | ||||
-rw-r--r-- | drivers/pci/hotplug/pciehp_hpc.c | 2 | ||||
-rw-r--r-- | drivers/pci/msi.c | 15 | ||||
-rw-r--r-- | drivers/pci/pci-acpi.c | 7 | ||||
-rw-r--r-- | drivers/pci/pci.c | 10 | ||||
-rw-r--r-- | drivers/pci/pcie/aspm.c | 32 | ||||
-rw-r--r-- | drivers/pci/probe.c | 245 | ||||
-rw-r--r-- | drivers/pci/quirks.c | 13 |
8 files changed, 204 insertions, 138 deletions
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index dd376f7ad090..d5b4ef898879 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c | |||
@@ -76,9 +76,9 @@ static struct acpi_pci_driver acpi_pci_slot_driver = { | |||
76 | }; | 76 | }; |
77 | 77 | ||
78 | static int | 78 | static int |
79 | check_slot(acpi_handle handle, int *device, unsigned long *sun) | 79 | check_slot(acpi_handle handle, unsigned long *sun) |
80 | { | 80 | { |
81 | int retval = 0; | 81 | int device = -1; |
82 | unsigned long adr, sta; | 82 | unsigned long adr, sta; |
83 | acpi_status status; | 83 | acpi_status status; |
84 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | 84 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
@@ -89,32 +89,27 @@ check_slot(acpi_handle handle, int *device, unsigned long *sun) | |||
89 | if (check_sta_before_sun) { | 89 | if (check_sta_before_sun) { |
90 | /* If SxFy doesn't have _STA, we just assume it's there */ | 90 | /* If SxFy doesn't have _STA, we just assume it's there */ |
91 | status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); | 91 | status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); |
92 | if (ACPI_SUCCESS(status) && !(sta & ACPI_STA_DEVICE_PRESENT)) { | 92 | if (ACPI_SUCCESS(status) && !(sta & ACPI_STA_DEVICE_PRESENT)) |
93 | retval = -1; | ||
94 | goto out; | 93 | goto out; |
95 | } | ||
96 | } | 94 | } |
97 | 95 | ||
98 | status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); | 96 | status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); |
99 | if (ACPI_FAILURE(status)) { | 97 | if (ACPI_FAILURE(status)) { |
100 | dbg("_ADR returned %d on %s\n", status, (char *)buffer.pointer); | 98 | dbg("_ADR returned %d on %s\n", status, (char *)buffer.pointer); |
101 | retval = -1; | ||
102 | goto out; | 99 | goto out; |
103 | } | 100 | } |
104 | 101 | ||
105 | *device = (adr >> 16) & 0xffff; | ||
106 | |||
107 | /* No _SUN == not a slot == bail */ | 102 | /* No _SUN == not a slot == bail */ |
108 | status = acpi_evaluate_integer(handle, "_SUN", NULL, sun); | 103 | status = acpi_evaluate_integer(handle, "_SUN", NULL, sun); |
109 | if (ACPI_FAILURE(status)) { | 104 | if (ACPI_FAILURE(status)) { |
110 | dbg("_SUN returned %d on %s\n", status, (char *)buffer.pointer); | 105 | dbg("_SUN returned %d on %s\n", status, (char *)buffer.pointer); |
111 | retval = -1; | ||
112 | goto out; | 106 | goto out; |
113 | } | 107 | } |
114 | 108 | ||
109 | device = (adr >> 16) & 0xffff; | ||
115 | out: | 110 | out: |
116 | kfree(buffer.pointer); | 111 | kfree(buffer.pointer); |
117 | return retval; | 112 | return device; |
118 | } | 113 | } |
119 | 114 | ||
120 | struct callback_args { | 115 | struct callback_args { |
@@ -144,7 +139,8 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) | |||
144 | struct callback_args *parent_context = context; | 139 | struct callback_args *parent_context = context; |
145 | struct pci_bus *pci_bus = parent_context->pci_bus; | 140 | struct pci_bus *pci_bus = parent_context->pci_bus; |
146 | 141 | ||
147 | if (check_slot(handle, &device, &sun)) | 142 | device = check_slot(handle, &sun); |
143 | if (device < 0) | ||
148 | return AE_OK; | 144 | return AE_OK; |
149 | 145 | ||
150 | slot = kmalloc(sizeof(*slot), GFP_KERNEL); | 146 | slot = kmalloc(sizeof(*slot), GFP_KERNEL); |
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 1323a43285d7..ad27e9e225a6 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c | |||
@@ -1103,7 +1103,7 @@ static inline void dbg_ctrl(struct controller *ctrl) | |||
1103 | dbg(" Power Indicator : %3s\n", PWR_LED(ctrl) ? "yes" : "no"); | 1103 | dbg(" Power Indicator : %3s\n", PWR_LED(ctrl) ? "yes" : "no"); |
1104 | dbg(" Hot-Plug Surprise : %3s\n", HP_SUPR_RM(ctrl) ? "yes" : "no"); | 1104 | dbg(" Hot-Plug Surprise : %3s\n", HP_SUPR_RM(ctrl) ? "yes" : "no"); |
1105 | dbg(" EMI Present : %3s\n", EMI(ctrl) ? "yes" : "no"); | 1105 | dbg(" EMI Present : %3s\n", EMI(ctrl) ? "yes" : "no"); |
1106 | dbg(" Comamnd Completed : %3s\n", NO_CMD_CMPL(ctrl)? "no" : "yes"); | 1106 | dbg(" Command Completed : %3s\n", NO_CMD_CMPL(ctrl)? "no" : "yes"); |
1107 | pciehp_readw(ctrl, SLOTSTATUS, ®16); | 1107 | pciehp_readw(ctrl, SLOTSTATUS, ®16); |
1108 | dbg("Slot Status : 0x%04x\n", reg16); | 1108 | dbg("Slot Status : 0x%04x\n", reg16); |
1109 | pciehp_readw(ctrl, SLOTCTRL, ®16); | 1109 | pciehp_readw(ctrl, SLOTCTRL, ®16); |
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 15af618d36e2..18354817173c 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c | |||
@@ -126,7 +126,16 @@ static void msix_flush_writes(unsigned int irq) | |||
126 | } | 126 | } |
127 | } | 127 | } |
128 | 128 | ||
129 | static void msi_set_mask_bits(unsigned int irq, u32 mask, u32 flag) | 129 | /* |
130 | * PCI 2.3 does not specify mask bits for each MSI interrupt. Attempting to | ||
131 | * mask all MSI interrupts by clearing the MSI enable bit does not work | ||
132 | * reliably as devices without an INTx disable bit will then generate a | ||
133 | * level IRQ which will never be cleared. | ||
134 | * | ||
135 | * Returns 1 if it succeeded in masking the interrupt and 0 if the device | ||
136 | * doesn't support MSI masking. | ||
137 | */ | ||
138 | static int msi_set_mask_bits(unsigned int irq, u32 mask, u32 flag) | ||
130 | { | 139 | { |
131 | struct msi_desc *entry; | 140 | struct msi_desc *entry; |
132 | 141 | ||
@@ -144,8 +153,7 @@ static void msi_set_mask_bits(unsigned int irq, u32 mask, u32 flag) | |||
144 | mask_bits |= flag & mask; | 153 | mask_bits |= flag & mask; |
145 | pci_write_config_dword(entry->dev, pos, mask_bits); | 154 | pci_write_config_dword(entry->dev, pos, mask_bits); |
146 | } else { | 155 | } else { |
147 | __msi_set_enable(entry->dev, entry->msi_attrib.pos, | 156 | return 0; |
148 | !flag); | ||
149 | } | 157 | } |
150 | break; | 158 | break; |
151 | case PCI_CAP_ID_MSIX: | 159 | case PCI_CAP_ID_MSIX: |
@@ -161,6 +169,7 @@ static void msi_set_mask_bits(unsigned int irq, u32 mask, u32 flag) | |||
161 | break; | 169 | break; |
162 | } | 170 | } |
163 | entry->msi_attrib.masked = !!flag; | 171 | entry->msi_attrib.masked = !!flag; |
172 | return 1; | ||
164 | } | 173 | } |
165 | 174 | ||
166 | void read_msi_msg(unsigned int irq, struct msi_msg *msg) | 175 | void read_msi_msg(unsigned int irq, struct msi_msg *msg) |
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 7764768b6a0e..89a2f0fa10f9 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c | |||
@@ -11,6 +11,7 @@ | |||
11 | #include <linux/init.h> | 11 | #include <linux/init.h> |
12 | #include <linux/pci.h> | 12 | #include <linux/pci.h> |
13 | #include <linux/module.h> | 13 | #include <linux/module.h> |
14 | #include <linux/pci-aspm.h> | ||
14 | #include <acpi/acpi.h> | 15 | #include <acpi/acpi.h> |
15 | #include <acpi/acnamesp.h> | 16 | #include <acpi/acnamesp.h> |
16 | #include <acpi/acresrc.h> | 17 | #include <acpi/acresrc.h> |
@@ -372,6 +373,12 @@ static int __init acpi_pci_init(void) | |||
372 | printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n"); | 373 | printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n"); |
373 | pci_no_msi(); | 374 | pci_no_msi(); |
374 | } | 375 | } |
376 | |||
377 | if (acpi_gbl_FADT.boot_flags & BAF_PCIE_ASPM_CONTROL) { | ||
378 | printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n"); | ||
379 | pcie_no_aspm(); | ||
380 | } | ||
381 | |||
375 | ret = register_acpi_bus_type(&acpi_pci_bus); | 382 | ret = register_acpi_bus_type(&acpi_pci_bus); |
376 | if (ret) | 383 | if (ret) |
377 | return 0; | 384 | return 0; |
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e9c356236d27..0a3d856833fc 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c | |||
@@ -572,6 +572,10 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state) | |||
572 | if (!ret) | 572 | if (!ret) |
573 | pci_update_current_state(dev); | 573 | pci_update_current_state(dev); |
574 | } | 574 | } |
575 | /* This device is quirked not to be put into D3, so | ||
576 | don't put it in D3 */ | ||
577 | if (state == PCI_D3hot && (dev->dev_flags & PCI_DEV_FLAGS_NO_D3)) | ||
578 | return 0; | ||
575 | 579 | ||
576 | error = pci_raw_set_power_state(dev, state); | 580 | error = pci_raw_set_power_state(dev, state); |
577 | 581 | ||
@@ -1123,6 +1127,12 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) | |||
1123 | } | 1127 | } |
1124 | 1128 | ||
1125 | /** | 1129 | /** |
1130 | * pci_target_state - find an appropriate low power state for a given PCI dev | ||
1131 | * @dev: PCI device | ||
1132 | * | ||
1133 | * Use underlying platform code to find a supported low power state for @dev. | ||
1134 | * If the platform can't manage @dev, return the deepest state from which it | ||
1135 | * can generate wake events, based on any available PME info. | ||
1126 | */ | 1136 | */ |
1127 | pci_power_t pci_target_state(struct pci_dev *dev) | 1137 | pci_power_t pci_target_state(struct pci_dev *dev) |
1128 | { | 1138 | { |
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index f82495583e63..9a7c9e1408a4 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c | |||
@@ -55,7 +55,7 @@ struct pcie_link_state { | |||
55 | struct endpoint_state endpoints[8]; | 55 | struct endpoint_state endpoints[8]; |
56 | }; | 56 | }; |
57 | 57 | ||
58 | static int aspm_disabled; | 58 | static int aspm_disabled, aspm_force; |
59 | static DEFINE_MUTEX(aspm_lock); | 59 | static DEFINE_MUTEX(aspm_lock); |
60 | static LIST_HEAD(link_list); | 60 | static LIST_HEAD(link_list); |
61 | 61 | ||
@@ -510,6 +510,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev) | |||
510 | { | 510 | { |
511 | struct pci_dev *child_dev; | 511 | struct pci_dev *child_dev; |
512 | int child_pos; | 512 | int child_pos; |
513 | u32 reg32; | ||
513 | 514 | ||
514 | /* | 515 | /* |
515 | * Some functions in a slot might not all be PCIE functions, very | 516 | * Some functions in a slot might not all be PCIE functions, very |
@@ -519,6 +520,19 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev) | |||
519 | child_pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP); | 520 | child_pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP); |
520 | if (!child_pos) | 521 | if (!child_pos) |
521 | return -EINVAL; | 522 | return -EINVAL; |
523 | |||
524 | /* | ||
525 | * Disable ASPM for pre-1.1 PCIe device, we follow MS to use | ||
526 | * RBER bit to determine if a function is 1.1 version device | ||
527 | */ | ||
528 | pci_read_config_dword(child_dev, child_pos + PCI_EXP_DEVCAP, | ||
529 | ®32); | ||
530 | if (!(reg32 & PCI_EXP_DEVCAP_RBER && !aspm_force)) { | ||
531 | printk("Pre-1.1 PCIe device detected, " | ||
532 | "disable ASPM for %s. It can be enabled forcedly" | ||
533 | " with 'pcie_aspm=force'\n", pci_name(pdev)); | ||
534 | return -EINVAL; | ||
535 | } | ||
522 | } | 536 | } |
523 | return 0; | 537 | return 0; |
524 | } | 538 | } |
@@ -802,11 +816,23 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev) | |||
802 | 816 | ||
803 | static int __init pcie_aspm_disable(char *str) | 817 | static int __init pcie_aspm_disable(char *str) |
804 | { | 818 | { |
805 | aspm_disabled = 1; | 819 | if (!strcmp(str, "off")) { |
820 | aspm_disabled = 1; | ||
821 | printk(KERN_INFO "PCIe ASPM is disabled\n"); | ||
822 | } else if (!strcmp(str, "force")) { | ||
823 | aspm_force = 1; | ||
824 | printk(KERN_INFO "PCIe ASPM is forcedly enabled\n"); | ||
825 | } | ||
806 | return 1; | 826 | return 1; |
807 | } | 827 | } |
808 | 828 | ||
809 | __setup("pcie_noaspm", pcie_aspm_disable); | 829 | __setup("pcie_aspm=", pcie_aspm_disable); |
830 | |||
831 | void pcie_no_aspm(void) | ||
832 | { | ||
833 | if (!aspm_force) | ||
834 | aspm_disabled = 1; | ||
835 | } | ||
810 | 836 | ||
811 | #ifdef CONFIG_ACPI | 837 | #ifdef CONFIG_ACPI |
812 | #include <acpi/acpi_bus.h> | 838 | #include <acpi/acpi_bus.h> |
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b1724cf31b66..7098dfb07449 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c | |||
@@ -163,12 +163,9 @@ static inline unsigned int pci_calc_resource_flags(unsigned int flags) | |||
163 | return IORESOURCE_MEM; | 163 | return IORESOURCE_MEM; |
164 | } | 164 | } |
165 | 165 | ||
166 | /* | 166 | static u64 pci_size(u64 base, u64 maxbase, u64 mask) |
167 | * Find the extent of a PCI decode.. | ||
168 | */ | ||
169 | static u32 pci_size(u32 base, u32 maxbase, u32 mask) | ||
170 | { | 167 | { |
171 | u32 size = mask & maxbase; /* Find the significant bits */ | 168 | u64 size = mask & maxbase; /* Find the significant bits */ |
172 | if (!size) | 169 | if (!size) |
173 | return 0; | 170 | return 0; |
174 | 171 | ||
@@ -184,135 +181,142 @@ static u32 pci_size(u32 base, u32 maxbase, u32 mask) | |||
184 | return size; | 181 | return size; |
185 | } | 182 | } |
186 | 183 | ||
187 | static u64 pci_size64(u64 base, u64 maxbase, u64 mask) | 184 | enum pci_bar_type { |
188 | { | 185 | pci_bar_unknown, /* Standard PCI BAR probe */ |
189 | u64 size = mask & maxbase; /* Find the significant bits */ | 186 | pci_bar_io, /* An io port BAR */ |
190 | if (!size) | 187 | pci_bar_mem32, /* A 32-bit memory BAR */ |
191 | return 0; | 188 | pci_bar_mem64, /* A 64-bit memory BAR */ |
189 | }; | ||
192 | 190 | ||
193 | /* Get the lowest of them to find the decode size, and | 191 | static inline enum pci_bar_type decode_bar(struct resource *res, u32 bar) |
194 | from that the extent. */ | 192 | { |
195 | size = (size & ~(size-1)) - 1; | 193 | if ((bar & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO) { |
194 | res->flags = bar & ~PCI_BASE_ADDRESS_IO_MASK; | ||
195 | return pci_bar_io; | ||
196 | } | ||
196 | 197 | ||
197 | /* base == maxbase can be valid only if the BAR has | 198 | res->flags = bar & ~PCI_BASE_ADDRESS_MEM_MASK; |
198 | already been programmed with all 1s. */ | ||
199 | if (base == maxbase && ((base | size) & mask) != mask) | ||
200 | return 0; | ||
201 | 199 | ||
202 | return size; | 200 | if (res->flags == PCI_BASE_ADDRESS_MEM_TYPE_64) |
201 | return pci_bar_mem64; | ||
202 | return pci_bar_mem32; | ||
203 | } | 203 | } |
204 | 204 | ||
205 | static inline int is_64bit_memory(u32 mask) | 205 | /* |
206 | * If the type is not unknown, we assume that the lowest bit is 'enable'. | ||
207 | * Returns 1 if the BAR was 64-bit and 0 if it was 32-bit. | ||
208 | */ | ||
209 | static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, | ||
210 | struct resource *res, unsigned int pos) | ||
206 | { | 211 | { |
207 | if ((mask & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) == | 212 | u32 l, sz, mask; |
208 | (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64)) | ||
209 | return 1; | ||
210 | return 0; | ||
211 | } | ||
212 | 213 | ||
213 | static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) | 214 | mask = type ? ~PCI_ROM_ADDRESS_ENABLE : ~0; |
214 | { | ||
215 | unsigned int pos, reg, next; | ||
216 | u32 l, sz; | ||
217 | struct resource *res; | ||
218 | 215 | ||
219 | for(pos=0; pos<howmany; pos = next) { | 216 | res->name = pci_name(dev); |
220 | u64 l64; | ||
221 | u64 sz64; | ||
222 | u32 raw_sz; | ||
223 | 217 | ||
224 | next = pos+1; | 218 | pci_read_config_dword(dev, pos, &l); |
225 | res = &dev->resource[pos]; | 219 | pci_write_config_dword(dev, pos, mask); |
226 | res->name = pci_name(dev); | 220 | pci_read_config_dword(dev, pos, &sz); |
227 | reg = PCI_BASE_ADDRESS_0 + (pos << 2); | 221 | pci_write_config_dword(dev, pos, l); |
228 | pci_read_config_dword(dev, reg, &l); | 222 | |
229 | pci_write_config_dword(dev, reg, ~0); | 223 | /* |
230 | pci_read_config_dword(dev, reg, &sz); | 224 | * All bits set in sz means the device isn't working properly. |
231 | pci_write_config_dword(dev, reg, l); | 225 | * If the BAR isn't implemented, all bits must be 0. If it's a |
232 | if (!sz || sz == 0xffffffff) | 226 | * memory BAR or a ROM, bit 0 must be clear; if it's an io BAR, bit |
233 | continue; | 227 | * 1 must be clear. |
234 | if (l == 0xffffffff) | 228 | */ |
235 | l = 0; | 229 | if (!sz || sz == 0xffffffff) |
236 | raw_sz = sz; | 230 | goto fail; |
237 | if ((l & PCI_BASE_ADDRESS_SPACE) == | 231 | |
238 | PCI_BASE_ADDRESS_SPACE_MEMORY) { | 232 | /* |
239 | sz = pci_size(l, sz, (u32)PCI_BASE_ADDRESS_MEM_MASK); | 233 | * I don't know how l can have all bits set. Copied from old code. |
240 | /* | 234 | * Maybe it fixes a bug on some ancient platform. |
241 | * For 64bit prefetchable memory sz could be 0, if the | 235 | */ |
242 | * real size is bigger than 4G, so we need to check | 236 | if (l == 0xffffffff) |
243 | * szhi for that. | 237 | l = 0; |
244 | */ | 238 | |
245 | if (!is_64bit_memory(l) && !sz) | 239 | if (type == pci_bar_unknown) { |
246 | continue; | 240 | type = decode_bar(res, l); |
247 | res->start = l & PCI_BASE_ADDRESS_MEM_MASK; | 241 | res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; |
248 | res->flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK; | 242 | if (type == pci_bar_io) { |
243 | l &= PCI_BASE_ADDRESS_IO_MASK; | ||
244 | mask = PCI_BASE_ADDRESS_IO_MASK & 0xffff; | ||
249 | } else { | 245 | } else { |
250 | sz = pci_size(l, sz, PCI_BASE_ADDRESS_IO_MASK & 0xffff); | 246 | l &= PCI_BASE_ADDRESS_MEM_MASK; |
251 | if (!sz) | 247 | mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; |
252 | continue; | ||
253 | res->start = l & PCI_BASE_ADDRESS_IO_MASK; | ||
254 | res->flags |= l & ~PCI_BASE_ADDRESS_IO_MASK; | ||
255 | } | 248 | } |
256 | res->end = res->start + (unsigned long) sz; | 249 | } else { |
257 | res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; | 250 | res->flags |= (l & IORESOURCE_ROM_ENABLE); |
258 | if (is_64bit_memory(l)) { | 251 | l &= PCI_ROM_ADDRESS_MASK; |
259 | u32 szhi, lhi; | 252 | mask = (u32)PCI_ROM_ADDRESS_MASK; |
260 | 253 | } | |
261 | pci_read_config_dword(dev, reg+4, &lhi); | 254 | |
262 | pci_write_config_dword(dev, reg+4, ~0); | 255 | if (type == pci_bar_mem64) { |
263 | pci_read_config_dword(dev, reg+4, &szhi); | 256 | u64 l64 = l; |
264 | pci_write_config_dword(dev, reg+4, lhi); | 257 | u64 sz64 = sz; |
265 | sz64 = ((u64)szhi << 32) | raw_sz; | 258 | u64 mask64 = mask | (u64)~0 << 32; |
266 | l64 = ((u64)lhi << 32) | l; | 259 | |
267 | sz64 = pci_size64(l64, sz64, PCI_BASE_ADDRESS_MEM_MASK); | 260 | pci_read_config_dword(dev, pos + 4, &l); |
268 | next++; | 261 | pci_write_config_dword(dev, pos + 4, ~0); |
269 | #if BITS_PER_LONG == 64 | 262 | pci_read_config_dword(dev, pos + 4, &sz); |
270 | if (!sz64) { | 263 | pci_write_config_dword(dev, pos + 4, l); |
271 | res->start = 0; | 264 | |
272 | res->end = 0; | 265 | l64 |= ((u64)l << 32); |
273 | res->flags = 0; | 266 | sz64 |= ((u64)sz << 32); |
274 | continue; | 267 | |
275 | } | 268 | sz64 = pci_size(l64, sz64, mask64); |
276 | res->start = l64 & PCI_BASE_ADDRESS_MEM_MASK; | 269 | |
277 | res->end = res->start + sz64; | 270 | if (!sz64) |
278 | #else | 271 | goto fail; |
279 | if (sz64 > 0x100000000ULL) { | 272 | |
280 | dev_err(&dev->dev, "BAR %d: can't handle 64-bit" | 273 | if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) { |
281 | " BAR\n", pos); | 274 | dev_err(&dev->dev, "can't handle 64-bit BAR\n"); |
282 | res->start = 0; | 275 | goto fail; |
283 | res->flags = 0; | 276 | } else if ((sizeof(resource_size_t) < 8) && l) { |
284 | } else if (lhi) { | 277 | /* Address above 32-bit boundary; disable the BAR */ |
285 | /* 64-bit wide address, treat as disabled */ | 278 | pci_write_config_dword(dev, pos, 0); |
286 | pci_write_config_dword(dev, reg, | 279 | pci_write_config_dword(dev, pos + 4, 0); |
287 | l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK); | 280 | res->start = 0; |
288 | pci_write_config_dword(dev, reg+4, 0); | 281 | res->end = sz64; |
289 | res->start = 0; | 282 | } else { |
290 | res->end = sz; | 283 | res->start = l64; |
291 | } | 284 | res->end = l64 + sz64; |
292 | #endif | ||
293 | } | 285 | } |
286 | } else { | ||
287 | sz = pci_size(l, sz, mask); | ||
288 | |||
289 | if (!sz) | ||
290 | goto fail; | ||
291 | |||
292 | res->start = l; | ||
293 | res->end = l + sz; | ||
294 | } | 294 | } |
295 | |||
296 | out: | ||
297 | return (type == pci_bar_mem64) ? 1 : 0; | ||
298 | fail: | ||
299 | res->flags = 0; | ||
300 | goto out; | ||
301 | } | ||
302 | |||
303 | static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) | ||
304 | { | ||
305 | unsigned int pos, reg; | ||
306 | |||
307 | for (pos = 0; pos < howmany; pos++) { | ||
308 | struct resource *res = &dev->resource[pos]; | ||
309 | reg = PCI_BASE_ADDRESS_0 + (pos << 2); | ||
310 | pos += __pci_read_base(dev, pci_bar_unknown, res, reg); | ||
311 | } | ||
312 | |||
295 | if (rom) { | 313 | if (rom) { |
314 | struct resource *res = &dev->resource[PCI_ROM_RESOURCE]; | ||
296 | dev->rom_base_reg = rom; | 315 | dev->rom_base_reg = rom; |
297 | res = &dev->resource[PCI_ROM_RESOURCE]; | 316 | res->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH | |
298 | res->name = pci_name(dev); | 317 | IORESOURCE_READONLY | IORESOURCE_CACHEABLE | |
299 | pci_read_config_dword(dev, rom, &l); | 318 | IORESOURCE_SIZEALIGN; |
300 | pci_write_config_dword(dev, rom, ~PCI_ROM_ADDRESS_ENABLE); | 319 | __pci_read_base(dev, pci_bar_mem32, res, rom); |
301 | pci_read_config_dword(dev, rom, &sz); | ||
302 | pci_write_config_dword(dev, rom, l); | ||
303 | if (l == 0xffffffff) | ||
304 | l = 0; | ||
305 | if (sz && sz != 0xffffffff) { | ||
306 | sz = pci_size(l, sz, (u32)PCI_ROM_ADDRESS_MASK); | ||
307 | if (sz) { | ||
308 | res->flags = (l & IORESOURCE_ROM_ENABLE) | | ||
309 | IORESOURCE_MEM | IORESOURCE_PREFETCH | | ||
310 | IORESOURCE_READONLY | IORESOURCE_CACHEABLE | | ||
311 | IORESOURCE_SIZEALIGN; | ||
312 | res->start = l & PCI_ROM_ADDRESS_MASK; | ||
313 | res->end = res->start + (unsigned long) sz; | ||
314 | } | ||
315 | } | ||
316 | } | 320 | } |
317 | } | 321 | } |
318 | 322 | ||
@@ -1053,7 +1057,8 @@ int pci_scan_slot(struct pci_bus *bus, int devfn) | |||
1053 | } | 1057 | } |
1054 | } | 1058 | } |
1055 | 1059 | ||
1056 | if (bus->self) | 1060 | /* only one slot has pcie device */ |
1061 | if (bus->self && nr) | ||
1057 | pcie_aspm_init_link_state(bus->self); | 1062 | pcie_aspm_init_link_state(bus->self); |
1058 | 1063 | ||
1059 | return nr; | 1064 | return nr; |
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 12d489395fad..0fb365074288 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c | |||
@@ -923,6 +923,19 @@ static void __init quirk_ide_samemode(struct pci_dev *pdev) | |||
923 | } | 923 | } |
924 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); | 924 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); |
925 | 925 | ||
926 | /* | ||
927 | * Some ATA devices break if put into D3 | ||
928 | */ | ||
929 | |||
930 | static void __devinit quirk_no_ata_d3(struct pci_dev *pdev) | ||
931 | { | ||
932 | /* Quirk the legacy ATA devices only. The AHCI ones are ok */ | ||
933 | if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) | ||
934 | pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3; | ||
935 | } | ||
936 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3); | ||
937 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3); | ||
938 | |||
926 | /* This was originally an Alpha specific thing, but it really fits here. | 939 | /* This was originally an Alpha specific thing, but it really fits here. |
927 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. | 940 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. |
928 | */ | 941 | */ |