max = bus->busn_res.end;
list_for_each_entry(tmp, &bus->children, node) {
n = pci_bus_max_busnr(tmp);
- if(n > max)
+ if (n > max)
max = n;
}
return max;
return pos;
}
+EXPORT_SYMBOL(pci_find_capability);
/**
* pci_bus_find_capability - query for devices' capabilities
return pos;
}
+EXPORT_SYMBOL(pci_bus_find_capability);
/**
* pci_find_next_ext_capability - Find an extended capability
* For given resource region of given device, return the resource
* region of parent bus the given region is contained in.
*/
-struct resource *
-pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
+struct resource *pci_find_parent_resource(const struct pci_dev *dev,
+ struct resource *res)
{
const struct pci_bus *bus = dev->bus;
struct resource *r;
}
return NULL;
}
+EXPORT_SYMBOL(pci_find_parent_resource);
/**
* pci_wait_for_pending - wait for @mask bit(s) to clear in status word @pos
* Restore the BAR values for a given device, so as to make it
* accessible by its driver.
*/
-static void
-pci_restore_bars(struct pci_dev *dev)
+static void pci_restore_bars(struct pci_dev *dev)
{
int i;
}
static inline int platform_pci_set_power_state(struct pci_dev *dev,
- pci_power_t t)
+ pci_power_t t)
{
return pci_platform_pm ? pci_platform_pm->set_state(dev, t) : -ENOSYS;
}
*/
if (state != PCI_D0 && dev->current_state <= PCI_D3cold
&& dev->current_state > state) {
- dev_err(&dev->dev, "invalid power transition "
- "(from state %d to %d)\n", dev->current_state, state);
+ dev_err(&dev->dev, "invalid power transition (from state %d to %d)\n",
+ dev->current_state, state);
return -EINVAL;
}
pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
dev->current_state = (pmcsr & PCI_PM_CTRL_STATE_MASK);
if (dev->current_state != state && printk_ratelimit())
- dev_info(&dev->dev, "Refused to change power state, "
- "currently in D%d\n", dev->current_state);
+ dev_info(&dev->dev, "Refused to change power state, currently in D%d\n",
+ dev->current_state);
/*
* According to section 5.4.1 of the "PCI BUS POWER MANAGEMENT
return error;
}
+EXPORT_SYMBOL(pci_set_power_state);
/**
* pci_choose_state - Choose the power state of a PCI device
}
return PCI_D0;
}
-
EXPORT_SYMBOL(pci_choose_state);
#define PCI_EXP_SAVE_REGS 7
-
static struct pci_cap_saved_state *_pci_find_saved_cap(struct pci_dev *pci_dev,
u16 cap, bool extended)
{
* pci_save_state - save the PCI configuration space of a device before suspending
* @dev: - PCI device that we're dealing with
*/
-int
-pci_save_state(struct pci_dev *dev)
+int pci_save_state(struct pci_dev *dev)
{
int i;
/* XXX: 100% dword access ok here? */
return i;
return 0;
}
+EXPORT_SYMBOL(pci_save_state);
static void pci_restore_config_dword(struct pci_dev *pdev, int offset,
u32 saved_val, int retry)
return;
for (;;) {
- dev_dbg(&pdev->dev, "restoring config space at offset "
- "%#x (was %#x, writing %#x)\n", offset, val, saved_val);
+ dev_dbg(&pdev->dev, "restoring config space at offset %#x (was %#x, writing %#x)\n",
+ offset, val, saved_val);
pci_write_config_dword(pdev, offset, saved_val);
if (retry-- <= 0)
return;
dev->state_saved = false;
}
+EXPORT_SYMBOL(pci_restore_state);
struct pci_saved_state {
u32 config_space[16];
return do_pci_enable_device(dev, (1 << PCI_NUM_RESOURCES) - 1);
return 0;
}
+EXPORT_SYMBOL(pci_reenable_device);
static void pci_enable_bridge(struct pci_dev *dev)
{
{
return pci_enable_device_flags(dev, IORESOURCE_IO);
}
+EXPORT_SYMBOL(pci_enable_device_io);
/**
* pci_enable_device_mem - Initialize a device for use with Memory space
{
return pci_enable_device_flags(dev, IORESOURCE_MEM);
}
+EXPORT_SYMBOL(pci_enable_device_mem);
/**
* pci_enable_device - Initialize device before it's used by a driver.
{
return pci_enable_device_flags(dev, IORESOURCE_MEM | IORESOURCE_IO);
}
+EXPORT_SYMBOL(pci_enable_device);
/*
* Managed PCI resources. This manages device on/off, intx/msi/msix
}
return rc;
}
+EXPORT_SYMBOL(pcim_enable_device);
/**
* pcim_pin_device - Pin managed PCI device
if (dr)
dr->pinned = 1;
}
+EXPORT_SYMBOL(pcim_pin_device);
/*
* pcibios_add_device - provide arch specific hooks when adding device dev
* devices are added. This is the default implementation. Architecture
* implementations can override this.
*/
-int __weak pcibios_add_device (struct pci_dev *dev)
+int __weak pcibios_add_device(struct pci_dev *dev)
{
return 0;
}
* Note we don't actually disable the device until all callers of
* pci_enable_device() have called pci_disable_device().
*/
-void
-pci_disable_device(struct pci_dev *dev)
+void pci_disable_device(struct pci_dev *dev)
{
struct pci_devres *dr;
dev->is_busmaster = 0;
}
+EXPORT_SYMBOL(pci_disable_device);
/**
* pcibios_set_pcie_reset_state - set reset state for device dev
{
return pcibios_set_pcie_reset_state(dev, state);
}
+EXPORT_SYMBOL_GPL(pci_set_pcie_reset_state);
/**
* pci_check_pme_status - Check if given device has generated PME.
return !!(dev->pme_support & (1 << state));
}
+EXPORT_SYMBOL(pci_pme_capable);
static void pci_pme_list_scan(struct work_struct *work)
{
dev_dbg(&dev->dev, "PME# %s\n", enable ? "enabled" : "disabled");
}
+EXPORT_SYMBOL(pci_pme_active);
/**
* __pci_enable_wake - enable PCI device as wakeup event source
pci_enable_wake(dev, PCI_D3cold, enable) :
pci_enable_wake(dev, PCI_D3hot, enable);
}
+EXPORT_SYMBOL(pci_wake_from_d3);
/**
* pci_target_state - find an appropriate low power state for a given PCI dev
return error;
}
+EXPORT_SYMBOL(pci_prepare_to_sleep);
/**
* pci_back_from_sleep - turn PCI device on during system-wide transition into working state
pci_enable_wake(dev, PCI_D0, false);
return pci_set_power_state(dev, PCI_D0);
}
+EXPORT_SYMBOL(pci_back_from_sleep);
/**
* pci_finish_runtime_suspend - Carry out PCI-specific part of runtime suspend.
return (((pin - 1) + slot) % 4) + 1;
}
-int
-pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge)
+int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge)
{
u8 pin;
if (dr)
dr->region_mask &= ~(1 << bar);
}
+EXPORT_SYMBOL(pci_release_region);
/**
* __pci_request_region - Reserved PCI I/O and memory resource
* Returns 0 on success, or %EBUSY on error. A warning
* message is also printed on failure.
*/
-static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_name,
- int exclusive)
+static int __pci_request_region(struct pci_dev *pdev, int bar,
+ const char *res_name, int exclusive)
{
struct pci_devres *dr;
if (!request_region(pci_resource_start(pdev, bar),
pci_resource_len(pdev, bar), res_name))
goto err_out;
- }
- else if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
+ } else if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
if (!__request_mem_region(pci_resource_start(pdev, bar),
pci_resource_len(pdev, bar), res_name,
exclusive))
{
return __pci_request_region(pdev, bar, res_name, 0);
}
+EXPORT_SYMBOL(pci_request_region);
/**
* pci_request_region_exclusive - Reserved PCI I/O and memory resource
* explicitly not allowed to map the resource via /dev/mem or
* sysfs.
*/
-int pci_request_region_exclusive(struct pci_dev *pdev, int bar, const char *res_name)
+int pci_request_region_exclusive(struct pci_dev *pdev, int bar,
+ const char *res_name)
{
return __pci_request_region(pdev, bar, res_name, IORESOURCE_EXCLUSIVE);
}
+EXPORT_SYMBOL(pci_request_region_exclusive);
+
/**
* pci_release_selected_regions - Release selected PCI I/O and memory resources
* @pdev: PCI device whose resources were previously reserved
if (bars & (1 << i))
pci_release_region(pdev, i);
}
+EXPORT_SYMBOL(pci_release_selected_regions);
static int __pci_request_selected_regions(struct pci_dev *pdev, int bars,
- const char *res_name, int excl)
+ const char *res_name, int excl)
{
int i;
return 0;
err_out:
- while(--i >= 0)
+ while (--i >= 0)
if (bars & (1 << i))
pci_release_region(pdev, i);
{
return __pci_request_selected_regions(pdev, bars, res_name, 0);
}
+EXPORT_SYMBOL(pci_request_selected_regions);
-int pci_request_selected_regions_exclusive(struct pci_dev *pdev,
- int bars, const char *res_name)
+int pci_request_selected_regions_exclusive(struct pci_dev *pdev, int bars,
+ const char *res_name)
{
return __pci_request_selected_regions(pdev, bars, res_name,
IORESOURCE_EXCLUSIVE);
}
+EXPORT_SYMBOL(pci_request_selected_regions_exclusive);
/**
* pci_release_regions - Release reserved PCI I/O and memory resources
{
pci_release_selected_regions(pdev, (1 << 6) - 1);
}
+EXPORT_SYMBOL(pci_release_regions);
/**
* pci_request_regions - Reserved PCI I/O and memory resources
{
return pci_request_selected_regions(pdev, ((1 << 6) - 1), res_name);
}
+EXPORT_SYMBOL(pci_request_regions);
/**
* pci_request_regions_exclusive - Reserved PCI I/O and memory resources
return pci_request_selected_regions_exclusive(pdev,
((1 << 6) - 1), res_name);
}
+EXPORT_SYMBOL(pci_request_regions_exclusive);
static void __pci_set_master(struct pci_dev *dev, bool enable)
{
__pci_set_master(dev, true);
pcibios_set_master(dev);
}
+EXPORT_SYMBOL(pci_set_master);
/**
* pci_clear_master - disables bus-mastering for device dev
{
__pci_set_master(dev, false);
}
+EXPORT_SYMBOL(pci_clear_master);
/**
* pci_set_cacheline_size - ensure the CACHE_LINE_SIZE register is programmed
if (cacheline_size == pci_cache_line_size)
return 0;
- dev_printk(KERN_DEBUG, &dev->dev, "cache line size of %d is not "
- "supported\n", pci_cache_line_size << 2);
+ dev_printk(KERN_DEBUG, &dev->dev, "cache line size of %d is not supported\n",
+ pci_cache_line_size << 2);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(pci_set_cacheline_size);
-#ifdef PCI_DISABLE_MWI
-int pci_set_mwi(struct pci_dev *dev)
-{
- return 0;
-}
-
-int pci_try_set_mwi(struct pci_dev *dev)
-{
- return 0;
-}
-
-void pci_clear_mwi(struct pci_dev *dev)
-{
-}
-
-#else
-
/**
* pci_set_mwi - enables memory-write-invalidate PCI transaction
* @dev: the PCI device for which MWI is enabled
*
* RETURNS: An appropriate -ERRNO error value on error, or zero for success.
*/
-int
-pci_set_mwi(struct pci_dev *dev)
+int pci_set_mwi(struct pci_dev *dev)
{
+#ifdef PCI_DISABLE_MWI
+ return 0;
+#else
int rc;
u16 cmd;
return rc;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
- if (! (cmd & PCI_COMMAND_INVALIDATE)) {
+ if (!(cmd & PCI_COMMAND_INVALIDATE)) {
dev_dbg(&dev->dev, "enabling Mem-Wr-Inval\n");
cmd |= PCI_COMMAND_INVALIDATE;
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
-
return 0;
+#endif
}
+EXPORT_SYMBOL(pci_set_mwi);
/**
* pci_try_set_mwi - enables memory-write-invalidate PCI transaction
*/
int pci_try_set_mwi(struct pci_dev *dev)
{
- int rc = pci_set_mwi(dev);
- return rc;
+#ifdef PCI_DISABLE_MWI
+ return 0;
+#else
+ return pci_set_mwi(dev);
+#endif
}
+EXPORT_SYMBOL(pci_try_set_mwi);
/**
* pci_clear_mwi - disables Memory-Write-Invalidate for device dev
*
* Disables PCI Memory-Write-Invalidate transaction on the device
*/
-void
-pci_clear_mwi(struct pci_dev *dev)
+void pci_clear_mwi(struct pci_dev *dev)
{
+#ifndef PCI_DISABLE_MWI
u16 cmd;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
cmd &= ~PCI_COMMAND_INVALIDATE;
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
+#endif
}
-#endif /* ! PCI_DISABLE_MWI */
+EXPORT_SYMBOL(pci_clear_mwi);
/**
* pci_intx - enables/disables PCI INTx for device dev
*
* Enables/disables PCI INTx for device dev
*/
-void
-pci_intx(struct pci_dev *pdev, int enable)
+void pci_intx(struct pci_dev *pdev, int enable)
{
u16 pci_command, new;
pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
- if (enable) {
+ if (enable)
new = pci_command & ~PCI_COMMAND_INTX_DISABLE;
- } else {
+ else
new = pci_command | PCI_COMMAND_INTX_DISABLE;
- }
if (new != pci_command) {
struct pci_devres *dr;
}
}
}
+EXPORT_SYMBOL_GPL(pci_intx);
/**
* pci_intx_mask_supported - probe for INTx masking support
* go ahead and check it.
*/
if ((new ^ orig) & ~PCI_COMMAND_INTX_DISABLE) {
- dev_err(&dev->dev, "Command register changed from "
- "0x%x to 0x%x: driver or hardware bug?\n", orig, new);
+ dev_err(&dev->dev, "Command register changed from 0x%x to 0x%x: driver or hardware bug?\n",
+ orig, new);
} else if ((new ^ orig) & PCI_COMMAND_INTX_DISABLE) {
mask_supported = true;
pci_write_config_word(dev, PCI_COMMAND, orig);
if (pci_wait_for_pending(dev, pos + PCI_AF_STATUS, PCI_AF_STATUS_TP))
goto clear;
- dev_err(&dev->dev, "transaction is not cleared; "
- "proceeding with reset anyway\n");
+ dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n");
clear:
pci_write_config_byte(dev, pos + PCI_AF_CTRL, PCI_AF_CTRL_FLR);
bars |= (1 << i);
return bars;
}
+EXPORT_SYMBOL(pci_select_bars);
/**
* pci_resource_bar - get position of the BAR associated with a resource
}
static int pci_set_vga_state_arch(struct pci_dev *dev, bool decode,
- unsigned int command_bits, u32 flags)
+ unsigned int command_bits, u32 flags)
{
if (arch_set_vga_state)
return arch_set_vga_state(dev, decode, command_bits,
bus == dev->bus->number &&
slot == PCI_SLOT(dev->devfn) &&
func == PCI_FUNC(dev->devfn)) {
- if (align_order == -1) {
+ if (align_order == -1)
align = PAGE_SIZE;
- } else {
+ else
align = 1 << align_order;
- }
/* Found */
break;
}
return bus_create_file(&pci_bus_type,
&bus_attr_resource_alignment);
}
-
late_initcall(pci_resource_alignment_sysfs_init);
static void pci_no_domains(void)
return 0;
}
early_param("pci", pci_setup);
-
-EXPORT_SYMBOL(pci_reenable_device);
-EXPORT_SYMBOL(pci_enable_device_io);
-EXPORT_SYMBOL(pci_enable_device_mem);
-EXPORT_SYMBOL(pci_enable_device);
-EXPORT_SYMBOL(pcim_enable_device);
-EXPORT_SYMBOL(pcim_pin_device);
-EXPORT_SYMBOL(pci_disable_device);
-EXPORT_SYMBOL(pci_find_capability);
-EXPORT_SYMBOL(pci_bus_find_capability);
-EXPORT_SYMBOL(pci_release_regions);
-EXPORT_SYMBOL(pci_request_regions);
-EXPORT_SYMBOL(pci_request_regions_exclusive);
-EXPORT_SYMBOL(pci_release_region);
-EXPORT_SYMBOL(pci_request_region);
-EXPORT_SYMBOL(pci_request_region_exclusive);
-EXPORT_SYMBOL(pci_release_selected_regions);
-EXPORT_SYMBOL(pci_request_selected_regions);
-EXPORT_SYMBOL(pci_request_selected_regions_exclusive);
-EXPORT_SYMBOL(pci_set_master);
-EXPORT_SYMBOL(pci_clear_master);
-EXPORT_SYMBOL(pci_set_mwi);
-EXPORT_SYMBOL(pci_try_set_mwi);
-EXPORT_SYMBOL(pci_clear_mwi);
-EXPORT_SYMBOL_GPL(pci_intx);
-EXPORT_SYMBOL(pci_assign_resource);
-EXPORT_SYMBOL(pci_find_parent_resource);
-EXPORT_SYMBOL(pci_select_bars);
-
-EXPORT_SYMBOL(pci_set_power_state);
-EXPORT_SYMBOL(pci_save_state);
-EXPORT_SYMBOL(pci_restore_state);
-EXPORT_SYMBOL(pci_pme_capable);
-EXPORT_SYMBOL(pci_pme_active);
-EXPORT_SYMBOL(pci_wake_from_d3);
-EXPORT_SYMBOL(pci_prepare_to_sleep);
-EXPORT_SYMBOL(pci_back_from_sleep);
-EXPORT_SYMBOL_GPL(pci_set_pcie_reset_state);
projects / linux-drm-fsl-dcu.git / blobdiff