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authorLinus Torvalds <torvalds@linux-foundation.org>2009-02-17 17:23:35 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-17 17:23:35 -0500
commitc951aa62d59210636cc63a569bcf3331be7f5b15 (patch)
tree151cde34d789db9fd8cf224603edff635997561a
parent23beafbe3abd3f622931e83ef4e6b17642cf408e (diff)
parenta08f6e04d74478d91f34a0484e69e89870adb33d (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: PCI: Documentation: fix minor PCIe HOWTO thinko PCI: fix missing kernel-doc and typos PCI: fix struct pci_platform_pm_ops kernel-doc PCI: fix rom.c kernel-doc warning PCI/MSI: fix msi_mask() shift fix
-rw-r--r--Documentation/PCI/PCIEBUS-HOWTO.txt2
-rw-r--r--drivers/pci/msi.c10
-rw-r--r--drivers/pci/pci.c13
-rw-r--r--drivers/pci/pci.h20
-rw-r--r--drivers/pci/rom.c1
5 files changed, 25 insertions, 21 deletions
diff --git a/Documentation/PCI/PCIEBUS-HOWTO.txt b/Documentation/PCI/PCIEBUS-HOWTO.txt
index 9a07e38631b0..6bd5f372adec 100644
--- a/Documentation/PCI/PCIEBUS-HOWTO.txt
+++ b/Documentation/PCI/PCIEBUS-HOWTO.txt
@@ -93,7 +93,7 @@ the PCI Express Port Bus driver from loading a service driver.
93 93
94int pcie_port_service_register(struct pcie_port_service_driver *new) 94int pcie_port_service_register(struct pcie_port_service_driver *new)
95 95
96This API replaces the Linux Driver Model's pci_module_init API. A 96This API replaces the Linux Driver Model's pci_register_driver API. A
97service driver should always calls pcie_port_service_register at 97service driver should always calls pcie_port_service_register at
98module init. Note that after service driver being loaded, calls 98module init. Note that after service driver being loaded, calls
99such as pci_enable_device(dev) and pci_set_master(dev) are no longer 99such as pci_enable_device(dev) and pci_set_master(dev) are no longer
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 44f15ff70c1d..baba2eb5367d 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -103,14 +103,12 @@ static void msix_set_enable(struct pci_dev *dev, int enable)
103 } 103 }
104} 104}
105 105
106/*
107 * Essentially, this is ((1 << (1 << x)) - 1), but without the
108 * undefinedness of a << 32.
109 */
110static inline __attribute_const__ u32 msi_mask(unsigned x) 106static inline __attribute_const__ u32 msi_mask(unsigned x)
111{ 107{
112 static const u32 mask[] = { 1, 2, 4, 0xf, 0xff, 0xffff, 0xffffffff }; 108 /* Don't shift by >= width of type */
113 return mask[x]; 109 if (x >= 5)
110 return 0xffffffff;
111 return (1 << (1 << x)) - 1;
114} 112}
115 113
116static void msix_flush_writes(struct irq_desc *desc) 114static void msix_flush_writes(struct irq_desc *desc)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e3efe6b19ee7..6d6120007af4 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1540,16 +1540,21 @@ void pci_release_region(struct pci_dev *pdev, int bar)
1540} 1540}
1541 1541
1542/** 1542/**
1543 * pci_request_region - Reserved PCI I/O and memory resource 1543 * __pci_request_region - Reserved PCI I/O and memory resource
1544 * @pdev: PCI device whose resources are to be reserved 1544 * @pdev: PCI device whose resources are to be reserved
1545 * @bar: BAR to be reserved 1545 * @bar: BAR to be reserved
1546 * @res_name: Name to be associated with resource. 1546 * @res_name: Name to be associated with resource.
1547 * @exclusive: whether the region access is exclusive or not
1547 * 1548 *
1548 * Mark the PCI region associated with PCI device @pdev BR @bar as 1549 * Mark the PCI region associated with PCI device @pdev BR @bar as
1549 * being reserved by owner @res_name. Do not access any 1550 * being reserved by owner @res_name. Do not access any
1550 * address inside the PCI regions unless this call returns 1551 * address inside the PCI regions unless this call returns
1551 * successfully. 1552 * successfully.
1552 * 1553 *
1554 * If @exclusive is set, then the region is marked so that userspace
1555 * is explicitly not allowed to map the resource via /dev/mem or
1556 * sysfs MMIO access.
1557 *
1553 * Returns 0 on success, or %EBUSY on error. A warning 1558 * Returns 0 on success, or %EBUSY on error. A warning
1554 * message is also printed on failure. 1559 * message is also printed on failure.
1555 */ 1560 */
@@ -1588,12 +1593,12 @@ err_out:
1588} 1593}
1589 1594
1590/** 1595/**
1591 * pci_request_region - Reserved PCI I/O and memory resource 1596 * pci_request_region - Reserve PCI I/O and memory resource
1592 * @pdev: PCI device whose resources are to be reserved 1597 * @pdev: PCI device whose resources are to be reserved
1593 * @bar: BAR to be reserved 1598 * @bar: BAR to be reserved
1594 * @res_name: Name to be associated with resource. 1599 * @res_name: Name to be associated with resource
1595 * 1600 *
1596 * Mark the PCI region associated with PCI device @pdev BR @bar as 1601 * Mark the PCI region associated with PCI device @pdev BAR @bar as
1597 * being reserved by owner @res_name. Do not access any 1602 * being reserved by owner @res_name. Do not access any
1598 * address inside the PCI regions unless this call returns 1603 * address inside the PCI regions unless this call returns
1599 * successfully. 1604 * successfully.
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 26ddf78ac300..07c0aa5275e6 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -16,21 +16,21 @@ extern int pci_mmap_fits(struct pci_dev *pdev, int resno,
16#endif 16#endif
17 17
18/** 18/**
19 * Firmware PM callbacks 19 * struct pci_platform_pm_ops - Firmware PM callbacks
20 * 20 *
21 * @is_manageable - returns 'true' if given device is power manageable by the 21 * @is_manageable: returns 'true' if given device is power manageable by the
22 * platform firmware 22 * platform firmware
23 * 23 *
24 * @set_state - invokes the platform firmware to set the device's power state 24 * @set_state: invokes the platform firmware to set the device's power state
25 * 25 *
26 * @choose_state - returns PCI power state of given device preferred by the 26 * @choose_state: returns PCI power state of given device preferred by the
27 * platform; to be used during system-wide transitions from a 27 * platform; to be used during system-wide transitions from a
28 * sleeping state to the working state and vice versa 28 * sleeping state to the working state and vice versa
29 * 29 *
30 * @can_wakeup - returns 'true' if given device is capable of waking up the 30 * @can_wakeup: returns 'true' if given device is capable of waking up the
31 * system from a sleeping state 31 * system from a sleeping state
32 * 32 *
33 * @sleep_wake - enables/disables the system wake up capability of given device 33 * @sleep_wake: enables/disables the system wake up capability of given device
34 * 34 *
35 * If given platform is generally capable of power managing PCI devices, all of 35 * If given platform is generally capable of power managing PCI devices, all of
36 * these callbacks are mandatory. 36 * these callbacks are mandatory.
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 29cbe47f219f..36864a935d68 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -55,6 +55,7 @@ void pci_disable_rom(struct pci_dev *pdev)
55 55
56/** 56/**
57 * pci_get_rom_size - obtain the actual size of the ROM image 57 * pci_get_rom_size - obtain the actual size of the ROM image
58 * @pdev: target PCI device
58 * @rom: kernel virtual pointer to image of ROM 59 * @rom: kernel virtual pointer to image of ROM
59 * @size: size of PCI window 60 * @size: size of PCI window
60 * return: size of actual ROM image 61 * return: size of actual ROM image