* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
PCI: Increase resource array mask bit size in pcim_iomap_regions()
PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES
PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
x86/PCI: amd: factor out MMCONFIG discovery
PCI: Enable ATS at the device state restore
PCI: msi: fix imbalanced refcount of msi irq sysfs objects
PCI: kconfig: English typo in pci/pcie/Kconfig
PCI/PM/Runtime: make PCI traces quieter
PCI: remove pci_create_bus()
xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
sparc/PCI: convert to pci_create_root_bus()
sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
powerpc/PCI: convert to pci_create_root_bus()
powerpc/PCI: split PHB part out of pcibios_map_io_space()
...
Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
to the same patches being applied in other branches.
---------------------------
-What: Deprecated snapshot ioctls
-When: 2.6.36
-
-Why: The ioctls in kernel/power/user.c were marked as deprecated long time
- ago. Now they notify users about that so that they need to replace
- their userspace. After some more time, remove them completely.
-
-
----------------------------
-
What: The ieee80211_regdom module parameter
When: March 2010 / desktop catchup
What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS
(in net/core/net-sysfs.c)
-When: After the only user (hal) has seen a release with the patches
- for enough time, probably some time in 2010.
+When: 3.5
Why: Over 1K .text/.data size reduction, data is available in other
ways (ioctls)
----------------------------
-What: KVM paravirt mmu host support
-When: January 2011
-Why: The paravirt mmu host support is slower than non-paravirt mmu, both
- on newer and older hardware. It is already not exposed to the guest,
- and kept only for live migration purposes.
-
-----------------------------
-
What: iwlwifi 50XX module parameters
When: 3.0
Why: The "..50" modules parameters were used to configure 5000 series and
information log when acer-wmi initial.
+---------------------------
+
+What: /sys/devices/platform/_UDC_/udc/_UDC_/is_dualspeed file and
+ is_dualspeed line in /sys/devices/platform/ci13xxx_*/udc/device file.
+When: 3.8
+Why: The is_dualspeed file is superseded by maximum_speed in the same
+ directory and is_dualspeed line in device file is superseded by
+ max_speed line in the same file.
+
+ The maximum_speed/max_speed specifies maximum speed supported by UDC.
+ To check if dualspeeed is supported, check if the value is >= 3.
+ Various possible speeds are defined in <linux/usb/ch9.h>.
+
----------------------------
What: The XFS nodelaylog mount option
Why: The iwlagn module has been renamed iwlwifi. The alias will be around
for backward compatibility for several cycles and then dropped.
+
+ ----------------------------
+
+ What: pci_scan_bus_parented()
+ When: 3.5
+ Why: The pci_scan_bus_parented() interface creates a new root bus. The
+ bus is created with default resources (ioport_resource and
+ iomem_resource) that are always wrong, so we rely on arch code to
+ correct them later. Callers of pci_scan_bus_parented() should
+ convert to using pci_scan_root_bus() so they can supply a list of
+ bus resources when the bus is created.
void __devinit
pcibios_fixup_bus(struct pci_bus *bus)
{
- /* Propagate hose info into the subordinate devices. */
-
- struct pci_controller *hose = bus->sysdata;
struct pci_dev *dev = bus->self;
- if (!dev) {
- /* Root bus. */
- u32 pci_mem_end;
- u32 sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0;
- unsigned long end;
-
- bus->resource[0] = hose->io_space;
- bus->resource[1] = hose->mem_space;
-
- /* Adjust hose mem_space limit to prevent PCI allocations
- in the iommu windows. */
- pci_mem_end = min((u32)__direct_map_base, sg_base) - 1;
- end = hose->mem_space->start + pci_mem_end;
- if (hose->mem_space->end > end)
- hose->mem_space->end = end;
- } else if (pci_probe_only &&
+ if (pci_probe_only && dev &&
(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pci_read_bridge_bases(bus);
pcibios_fixup_device_resources(dev, bus);
common_init_pci(void)
{
struct pci_controller *hose;
+ struct list_head resources;
struct pci_bus *bus;
int next_busno;
int need_domain_info = 0;
+ u32 pci_mem_end;
+ u32 sg_base;
+ unsigned long end;
/* Scan all of the recorded PCI controllers. */
for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
- bus = pci_scan_bus(next_busno, alpha_mv.pci_ops, hose);
+ sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0;
+
+ /* Adjust hose mem_space limit to prevent PCI allocations
+ in the iommu windows. */
+ pci_mem_end = min((u32)__direct_map_base, sg_base) - 1;
+ end = hose->mem_space->start + pci_mem_end;
+ if (hose->mem_space->end > end)
+ hose->mem_space->end = end;
+
+ INIT_LIST_HEAD(&resources);
+ pci_add_resource(&resources, hose->io_space);
+ pci_add_resource(&resources, hose->mem_space);
+
+ bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
+ hose, &resources);
hose->bus = bus;
hose->need_domain_info = need_domain_info;
next_busno = bus->subordinate + 1;
return -EOPNOTSUPP;
}
-/* Create an __iomem token from a PCI BAR. Copied from lib/iomap.c with
- no changes, since we don't want the other things in that object file. */
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
- resource_size_t start = pci_resource_start(dev, bar);
- resource_size_t len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (!len || !start)
- return NULL;
- if (maxlen && len > maxlen)
- len = maxlen;
- if (flags & IORESOURCE_IO)
- return ioport_map(start, len);
- if (flags & IORESOURCE_MEM) {
- /* Not checking IORESOURCE_CACHEABLE because alpha does
- not distinguish between ioremap and ioremap_nocache. */
- return ioremap(start, len);
- }
- return NULL;
-}
-
-/* Destroy that token. Not copied from lib/iomap.c. */
+/* Destroy an __iomem token. Not copied from lib/iomap.c. */
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
iounmap(addr);
}
-EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
/* FIXME: Some boxes have multiple ISA bridges! */
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/mbus.h>
#include <video/vga.h>
#include <asm/mach/pci.h>
#include <asm/mach/arch.h>
#include <plat/pcie.h>
#include <mach/irqs.h>
#include <mach/bridge-regs.h>
+#include <plat/addr-map.h>
#include "common.h"
struct pcie_port {
*/
orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
- orion_pcie_setup(pp->base, &dove_mbus_dram_info);
+ orion_pcie_setup(pp->base);
/*
* IORESOURCE_IO
pp->res[0].flags = IORESOURCE_IO;
if (request_resource(&ioport_resource, &pp->res[0]))
panic("Request PCIe IO resource failed\n");
- sys->resource[0] = &pp->res[0];
+ pci_add_resource(&sys->resources, &pp->res[0]);
/*
* IORESOURCE_MEM
pp->res[1].flags = IORESOURCE_MEM;
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe Memory resource failed\n");
- sys->resource[1] = &pp->res[1];
-
- sys->resource[2] = NULL;
+ pci_add_resource(&sys->resources, &pp->res[1]);
return 1;
}
struct pci_bus *bus;
if (nr < num_pcie_ports) {
- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+ &sys->resources);
} else {
bus = NULL;
BUG();
static struct pci_bus * __init enp2611_pci_scan_bus(int nr,
struct pci_sys_data *sys)
{
- return pci_scan_bus(sys->busnr, &enp2611_pci_ops, sys);
+ return pci_scan_root_bus(NULL, sys->busnr, &enp2611_pci_ops, sys,
+ &sys->resources);
}
static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot,
.init_irq = ixp2000_init_irq,
.timer = &enp2611_timer,
.init_machine = enp2611_init_machine,
+ .restart = ixp2000_restart,
MACHINE_END
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/slab.h>
-#include <linux/mbus.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <plat/pcie.h>
#include <mach/bridge-regs.h>
+#include <plat/addr-map.h>
#include "common.h"
void kirkwood_enable_pcie(void)
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe%d Memory resource failed\n", index);
- sys->resource[0] = &pp->res[0];
- sys->resource[1] = &pp->res[1];
- sys->resource[2] = NULL;
+ pci_add_resource(&sys->resources, &pp->res[0]);
+ pci_add_resource(&sys->resources, &pp->res[1]);
sys->io_offset = 0;
/*
*/
orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
- orion_pcie_setup(pp->base, &kirkwood_mbus_dram_info);
+ orion_pcie_setup(pp->base);
return 1;
}
struct pci_bus *bus;
if (nr < num_pcie_ports) {
- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+ &sys->resources);
} else {
bus = NULL;
BUG();
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/mbus.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <plat/pcie.h>
+#include <plat/addr-map.h>
#include "common.h"
struct pcie_port {
* Generic PCIe unit setup.
*/
orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
- orion_pcie_setup(pp->base, &mv78xx0_mbus_dram_info);
+ orion_pcie_setup(pp->base);
- sys->resource[0] = &pp->res[0];
- sys->resource[1] = &pp->res[1];
- sys->resource[2] = NULL;
+ pci_add_resource(&sys->resources, &pp->res[0]);
+ pci_add_resource(&sys->resources, &pp->res[1]);
return 1;
}
struct pci_bus *bus;
if (nr < num_pcie_ports) {
- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+ &sys->resources);
} else {
bus = NULL;
BUG();
#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <plat/pcie.h>
+#include <plat/addr-map.h>
#include "common.h"
/*****************************************************************************
/*
* Generic PCIe unit setup.
*/
- orion_pcie_setup(PCIE_BASE, &orion5x_mbus_dram_info);
+ orion_pcie_setup(PCIE_BASE);
/*
* Check whether to apply Orion-1/Orion-NAS PCIe config
res[0].end = res[0].start + ORION5X_PCIE_IO_SIZE - 1;
if (request_resource(&ioport_resource, &res[0]))
panic("Request PCIe IO resource failed\n");
- sys->resource[0] = &res[0];
+ pci_add_resource(&sys->resources, &res[0]);
/*
* IORESOURCE_MEM
res[1].end = res[1].start + ORION5X_PCIE_MEM_SIZE - 1;
if (request_resource(&iomem_resource, &res[1]))
panic("Request PCIe Memory resource failed\n");
- sys->resource[1] = &res[1];
+ pci_add_resource(&sys->resources, &res[1]);
- sys->resource[2] = NULL;
sys->io_offset = 0;
return 1;
/*
* Point PCI unit MBUS decode windows to DRAM space.
*/
- orion5x_setup_pci_wins(&orion5x_mbus_dram_info);
+ orion5x_setup_pci_wins(&orion_mbus_dram_info);
/*
* Master + Slave enable
res[0].end = res[0].start + ORION5X_PCI_IO_SIZE - 1;
if (request_resource(&ioport_resource, &res[0]))
panic("Request PCI IO resource failed\n");
- sys->resource[0] = &res[0];
+ pci_add_resource(&sys->resources, &res[0]);
/*
* IORESOURCE_MEM
res[1].end = res[1].start + ORION5X_PCI_MEM_SIZE - 1;
if (request_resource(&iomem_resource, &res[1]))
panic("Request PCI Memory resource failed\n");
- sys->resource[1] = &res[1];
+ pci_add_resource(&sys->resources, &res[1]);
- sys->resource[2] = NULL;
sys->io_offset = 0;
return 1;
struct pci_bus *bus;
if (nr == 0) {
- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+ &sys->resources);
} else if (nr == 1 && !orion5x_pci_disabled) {
- bus = pci_scan_bus(sys->busnr, &pci_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys,
+ &sys->resources);
} else {
bus = NULL;
BUG();
#include <asm/sizes.h>
#include <asm/mach/pci.h>
-#include <mach/pinmux.h>
#include <mach/iomap.h>
#include <mach/clk.h>
#include <mach/powergate.h>
pp->res[0].flags = IORESOURCE_IO;
if (request_resource(&ioport_resource, &pp->res[0]))
panic("Request PCIe IO resource failed\n");
- sys->resource[0] = &pp->res[0];
+ pci_add_resource(&sys->resources, &pp->res[0]);
/*
* IORESOURCE_MEM
pp->res[1].flags = IORESOURCE_MEM;
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe Memory resource failed\n");
- sys->resource[1] = &pp->res[1];
+ pci_add_resource(&sys->resources, &pp->res[1]);
/*
* IORESOURCE_MEM | IORESOURCE_PREFETCH
pp->res[2].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
if (request_resource(&iomem_resource, &pp->res[2]))
panic("Request PCIe Prefetch Memory resource failed\n");
- sys->resource[2] = &pp->res[2];
+ pci_add_resource(&sys->resources, &pp->res[2]);
return 1;
}
pp = tegra_pcie.port + nr;
pp->root_bus_nr = sys->busnr;
- return pci_scan_bus(sys->busnr, &tegra_pcie_ops, sys);
+ return pci_scan_root_bus(NULL, sys->busnr, &tegra_pcie_ops, sys,
+ &sys->resources);
}
static struct hw_pci tegra_pcie_hw __initdata = {
return device_create_file(&pdev->dev, &dev_attr_devspec);
}
+ void pcibios_set_master(struct pci_dev *dev)
+ {
+ /* No special bus mastering setup handling */
+ }
+
char __devinit *pcibios_setup(char *str)
{
return str;
line, pin);
virq = irq_create_mapping(NULL, line);
- if (virq != NO_IRQ)
+ if (virq)
irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
} else {
pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
oirq.size);
}
- if (virq == NO_IRQ) {
+ if (!virq) {
pr_debug(" Failed to map !\n");
return -1;
}
struct pci_dev *dev = bus->self;
pci_bus_for_each_resource(bus, res, i) {
- res = bus->resource[i];
if (!res)
continue;
if (!res->flags)
pci_domain_nr(bus), bus->number);
pci_bus_for_each_resource(bus, res, i) {
- res = bus->resource[i];
if (!res || !res->flags
|| res->start > res->end || res->parent)
continue;
return pci_enable_resources(dev, mask);
}
- void __devinit pcibios_setup_phb_resources(struct pci_controller *hose)
+ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources)
{
- struct pci_bus *bus = hose->bus;
struct resource *res;
int i;
/* Hookup PHB IO resource */
- bus->resource[0] = res = &hose->io_resource;
+ res = &hose->io_resource;
+
+ /* Fixup IO space offset */
+ io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
+ res->start = (res->start + io_offset) & 0xffffffffu;
+ res->end = (res->end + io_offset) & 0xffffffffu;
if (!res->flags) {
printk(KERN_WARNING "PCI: I/O resource not set for host"
res->end = res->start + IO_SPACE_LIMIT;
res->flags = IORESOURCE_IO;
}
+ pci_add_resource(resources, res);
pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n",
(unsigned long long)res->start,
res->flags = IORESOURCE_MEM;
}
- bus->resource[i+1] = res;
+ pci_add_resource(resources, res);
pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n",
i, (unsigned long long)res->start,
static void __devinit pcibios_scan_phb(struct pci_controller *hose)
{
+ LIST_HEAD(resources);
struct pci_bus *bus;
struct device_node *node = hose->dn;
- unsigned long io_offset;
- struct resource *res = &hose->io_resource;
pr_debug("PCI: Scanning PHB %s\n",
node ? node->full_name : "<NO NAME>");
- /* Create an empty bus for the toplevel */
- bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
+ pcibios_setup_phb_resources(hose, &resources);
+
+ bus = pci_scan_root_bus(hose->parent, hose->first_busno,
+ hose->ops, hose, &resources);
if (bus == NULL) {
printk(KERN_ERR "Failed to create bus for PCI domain %04x\n",
hose->global_number);
+ pci_free_resource_list(&resources);
return;
}
bus->secondary = hose->first_busno;
hose->bus = bus;
- /* Fixup IO space offset */
- io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
- res->start = (res->start + io_offset) & 0xffffffffu;
- res->end = (res->end + io_offset) & 0xffffffffu;
-
- /* Wire up PHB bus resources */
- pcibios_setup_phb_resources(hose);
-
- /* Scan children */
- hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+ hose->last_busno = bus->subordinate;
}
static int __init pcibios_init(void)
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
hose->last_busno = 0xff;
pcibios_scan_phb(hose);
- printk(KERN_INFO "calling pci_bus_add_devices()\n");
- pci_bus_add_devices(hose->bus);
if (next_busno <= hose->last_busno)
next_busno = hose->last_busno + 1;
}
int pci_ext_config_space; /* for pci devices */
-#ifdef CONFIG_EEH
struct pci_dev *pcidev; /* back-pointer to the pci device */
+#ifdef CONFIG_EEH
int class_code; /* pci device class */
int eeh_mode; /* See eeh.h for possible EEH_MODEs */
int eeh_config_addr;
int eeh_false_positives; /* # times this device reported #ff's */
u32 config_space[16]; /* saved PCI config space */
#endif
+#define IODA_INVALID_PE (-1)
+#ifdef CONFIG_PPC_POWERNV
+ int pe_number;
+#endif
};
/* Get the pointer to a device_node's pci_dn */
/* Allocate & free a PCI host bridge structure */
extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
extern void pcibios_free_controller(struct pci_controller *phb);
- extern void pcibios_setup_phb_resources(struct pci_controller *hose);
#ifdef CONFIG_PCI
extern int pcibios_vaddr_is_ioport(void __iomem *address);
#define pcibios_assign_all_busses() \
(pci_has_flag(PCI_REASSIGN_ALL_BUS))
- static inline void pcibios_set_master(struct pci_dev *dev)
- {
- /* No special bus mastering setup handling */
- }
-
static inline void pcibios_penalize_isa_irq(int irq, int active)
{
/* We don't do dynamic PCI IRQ allocation */
extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
-extern int pci_read_irq_line(struct pci_dev *dev);
-
struct file;
extern pgprot_t pci_phys_mem_access_prot(struct file *file,
unsigned long pfn,
* If the interrupt is used, then gets the interrupt line from the
* openfirmware and sets it in the pci_dev and pci_config line.
*/
-int pci_read_irq_line(struct pci_dev *pci_dev)
+static int pci_read_irq_line(struct pci_dev *pci_dev)
{
struct of_irq oirq;
unsigned int virq;
return 0;
}
-EXPORT_SYMBOL(pci_read_irq_line);
/*
* Platform support for /proc/bus/pci/X/Y mmap()s,
struct resource *res = dev->resource + i;
if (!res->flags)
continue;
- /* On platforms that have PCI_PROBE_ONLY set, we don't
- * consider 0 as an unassigned BAR value. It's technically
- * a valid value, but linux doesn't like it... so when we can
- * re-assign things, we do so, but if we can't, we keep it
- * around and hope for the best...
+
+ /* If we're going to re-assign everything, we mark all resources
+ * as unset (and 0-base them). In addition, we mark BARs starting
+ * at 0 as unset as well, except if PCI_PROBE_ONLY is also set
+ * since in that case, we don't want to re-assign anything
*/
- if (res->start == 0 && !pci_has_flag(PCI_PROBE_ONLY)) {
- pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] is unassigned\n",
- pci_name(dev), i,
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned int)res->flags);
+ if (pci_has_flag(PCI_REASSIGN_ALL_RSRC) ||
+ (res->start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
+ /* Only print message if not re-assigning */
+ if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC))
+ pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] "
+ "is unassigned\n",
+ pci_name(dev), i,
+ (unsigned long long)res->start,
+ (unsigned long long)res->end,
+ (unsigned int)res->flags);
res->end -= res->start;
res->start = 0;
res->flags |= IORESOURCE_UNSET;
if (i >= 3 && bus->self->transparent)
continue;
+ /* If we are going to re-assign everything, mark the resource
+ * as unset and move it down to 0
+ */
+ if (pci_has_flag(PCI_REASSIGN_ALL_RSRC)) {
+ res->flags |= IORESOURCE_UNSET;
+ res->end -= res->start;
+ res->start = 0;
+ continue;
+ }
+
pr_debug("PCI:%s Bus rsrc %d %016llx-%016llx [%x] fixup...\n",
pci_name(dev), i,
(unsigned long long)res->start,\
}
}
+ void pcibios_set_master(struct pci_dev *dev)
+ {
+ /* No special bus mastering setup handling */
+ }
+
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
{
/* When called from the generic PCI probe, read PCI<->PCI bridge
pci_bus_for_each_resource(bus, res, i) {
if (!res || !res->flags || res->start > res->end || res->parent)
continue;
+
+ /* If the resource was left unset at this point, we clear it */
+ if (res->flags & IORESOURCE_UNSET)
+ goto clear_resource;
+
if (bus->parent == NULL)
pr = (res->flags & IORESOURCE_IO) ?
&ioport_resource : &iomem_resource;
else {
- /* Don't bother with non-root busses when
- * re-assigning all resources. We clear the
- * resource flags as if they were colliding
- * and as such ensure proper re-allocation
- * later.
- */
- if (pci_has_flag(PCI_REASSIGN_ALL_RSRC))
- goto clear_resource;
pr = pci_find_parent_resource(bus->self, res);
if (pr == res) {
/* this happens when the generic PCI
if (reparent_resources(pr, res) == 0)
continue;
}
- printk(KERN_WARNING "PCI: Cannot allocate resource region "
- "%d of PCI bridge %d, will remap\n", i, bus->number);
-clear_resource:
+ pr_warning("PCI: Cannot allocate resource region "
+ "%d of PCI bridge %d, will remap\n", i, bus->number);
+ clear_resource:
res->start = res->end = 0;
res->flags = 0;
}
{
struct pci_bus *b;
- /* Allocate and assign resources. If we re-assign everything, then
- * we skip the allocate phase
- */
+ /* Allocate and assign resources */
list_for_each_entry(b, &pci_root_buses, node)
pcibios_allocate_bus_resources(b);
-
- if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC)) {
- pcibios_allocate_resources(0);
- pcibios_allocate_resources(1);
- }
+ pcibios_allocate_resources(0);
+ pcibios_allocate_resources(1);
/* Before we start assigning unassigned resource, we try to reserve
* the low IO area and the VGA memory area if they intersect the
return pci_enable_resources(dev, mask);
}
- void __devinit pcibios_setup_phb_resources(struct pci_controller *hose)
+ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources)
{
- struct pci_bus *bus = hose->bus;
struct resource *res;
int i;
/* Hookup PHB IO resource */
- bus->resource[0] = res = &hose->io_resource;
+ res = &hose->io_resource;
if (!res->flags) {
printk(KERN_WARNING "PCI: I/O resource not set for host"
(unsigned long long)res->start,
(unsigned long long)res->end,
(unsigned long)res->flags);
+ pci_add_resource(resources, res);
/* Hookup PHB Memory resources */
for (i = 0; i < 3; ++i) {
res->flags = IORESOURCE_MEM;
#endif /* CONFIG_PPC32 */
}
- bus->resource[i+1] = res;
pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i,
(unsigned long long)res->start,
(unsigned long long)res->end,
(unsigned long)res->flags);
+ pci_add_resource(resources, res);
}
pr_debug("PCI: PHB MEM offset = %016llx\n",
*/
void __devinit pcibios_scan_phb(struct pci_controller *hose)
{
+ LIST_HEAD(resources);
struct pci_bus *bus;
struct device_node *node = hose->dn;
int mode;
pr_debug("PCI: Scanning PHB %s\n",
node ? node->full_name : "<NO NAME>");
+ /* Get some IO space for the new PHB */
+ pcibios_setup_phb_io_space(hose);
+
+ /* Wire up PHB bus resources */
+ pcibios_setup_phb_resources(hose, &resources);
+
/* Create an empty bus for the toplevel */
- bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
+ bus = pci_create_root_bus(hose->parent, hose->first_busno,
+ hose->ops, hose, &resources);
if (bus == NULL) {
pr_err("Failed to create bus for PCI domain %04x\n",
hose->global_number);
+ pci_free_resource_list(&resources);
return;
}
bus->secondary = hose->first_busno;
hose->bus = bus;
- /* Get some IO space for the new PHB */
- pcibios_setup_phb_io_space(hose);
-
- /* Wire up PHB bus resources */
- pcibios_setup_phb_resources(hose);
-
/* Get probe mode and perform scan */
mode = PCI_PROBE_NORMAL;
if (node && ppc_md.pci_probe_mode)
if (mode == PCI_PROBE_NORMAL)
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+ /* Platform gets a chance to do some global fixups before
+ * we proceed to resource allocation
+ */
+ if (ppc_md.pcibios_fixup_phb)
+ ppc_md.pcibios_fixup_phb(hose);
+
/* Configure PCI Express settings */
if (bus && !pci_has_flag(PCI_PROBE_ONLY)) {
struct pci_bus *child;
static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
{
int i, class = dev->class >> 8;
+ /* When configured as agent, programing interface = 1 */
+ int prog_if = dev->class & 0xf;
if ((class == PCI_CLASS_PROCESSOR_POWERPC ||
class == PCI_CLASS_BRIDGE_OTHER) &&
(dev->hdr_type == PCI_HEADER_TYPE_NORMAL) &&
+ (prog_if == 0) &&
(dev->bus->parent == NULL)) {
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
dev->resource[i].start = 0;
{
static int next_busno;
static int need_domain_info;
+ LIST_HEAD(resources);
+ int i;
struct pci_bus *bus;
- bus = pci_scan_bus(next_busno, hose->pci_ops, hose);
+ for (i = 0; i < hose->nr_resources; i++)
+ pci_add_resource(&resources, hose->resources + i);
+
+ bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
+ &resources);
hose->bus = bus;
need_domain_info = need_domain_info || hose->index;
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
pci_enable_bridges(bus);
+ } else {
+ pci_free_resource_list(&resources);
}
}
*/
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
{
- struct pci_dev *dev = bus->self;
+ struct pci_dev *dev;
struct list_head *ln;
- struct pci_channel *hose = bus->sysdata;
-
- if (!dev) {
- int i;
-
- for (i = 0; i < hose->nr_resources; i++)
- bus->resource[i] = hose->resources + i;
- }
for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
dev = pci_dev_b(ln);
return pci_enable_resources(dev, mask);
}
- /*
- * If we set up a device for bus mastering, we need to check and set
- * the latency timer as it may not be properly set.
- */
- static unsigned int pcibios_max_latency = 255;
-
- void pcibios_set_master(struct pci_dev *dev)
- {
- u8 lat;
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
- if (lat < 16)
- lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
- else if (lat > pcibios_max_latency)
- lat = pcibios_max_latency;
- else
- return;
- printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n",
- pci_name(dev), lat);
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
- }
-
void __init pcibios_update_irq(struct pci_dev *dev, int irq)
{
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
return (void __iomem *)(chan->io_map_base + port);
}
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
- resource_size_t start = pci_resource_start(dev, bar);
- resource_size_t len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (unlikely(!len || !start))
- return NULL;
- if (maxlen && len > maxlen)
- len = maxlen;
-
- if (flags & IORESOURCE_IO)
- return ioport_map_pci(dev, start, len);
- if (flags & IORESOURCE_MEM) {
- if (flags & IORESOURCE_CACHEABLE)
- return ioremap(start, len);
- return ioremap_nocache(start, len);
- }
-
- return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
iounmap(addr);
#define _ASM_TILE_PCI_H
#include <linux/pci.h>
+#include <asm-generic/pci_iomap.h>
/*
* Structure of a PCI controller (host bridge)
int __devinit tile_pci_init(void);
int __devinit pcibios_init(void);
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
void __devinit pcibios_fixup_bus(struct pci_bus *bus);
return 1;
}
- /*
- * No special bus mastering setup handling.
- */
- static inline void pcibios_set_master(struct pci_dev *dev)
- {
- }
-
#define PCIBIOS_MIN_MEM 0
#define PCIBIOS_MIN_IO 0
/* Nothing needs to be done. */
}
+ void pcibios_set_master(struct pci_dev *dev)
+ {
+ /* No special bus mastering setup handling. */
+ }
+
/*
* This can be called from the generic PCI layer, but doesn't need to
* do anything.
return 0;
}
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
- unsigned long start = pci_resource_start(dev, bar);
- unsigned long len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (!len)
- return NULL;
- if (max && len > max)
- len = max;
-
- if (!(flags & IORESOURCE_MEM)) {
- pr_info("PCI: Trying to map invalid resource %#lx\n", flags);
- start = 0;
- }
-
- return (void __iomem *)start;
-}
-EXPORT_SYMBOL(pci_iomap);
-
-
/****************************************************************
*
* Tile PCI config space read/write routines
.balance_interval = 1, \
}
-#ifdef CONFIG_X86_64
extern int __node_distance(int, int);
#define node_distance(a, b) __node_distance(a, b)
-#endif
#else /* !CONFIG_NUMA */
}
struct pci_bus;
- void x86_pci_root_bus_res_quirks(struct pci_bus *b);
+ void x86_pci_root_bus_resources(int bus, struct list_head *resources);
#ifdef CONFIG_SMP
#define mc_capable() ((boot_cpu_data.x86_max_cores > 1) && \
struct mpc_bus;
struct mpc_cpu;
struct mpc_table;
+struct cpuinfo_x86;
/**
* struct x86_init_mpparse - platform specific mpparse ops
*/
struct x86_cpuinit_ops {
void (*setup_percpu_clockev)(void);
+ void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
};
/**
int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
void (*teardown_msi_irq)(unsigned int irq);
void (*teardown_msi_irqs)(struct pci_dev *dev);
+ void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
};
extern struct x86_init_ops x86_init;
extern void x86_init_noop(void);
extern void x86_init_uint_noop(unsigned int unused);
+extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node);
#endif
return false;
}
+ struct resource *amd_get_mmconfig_range(struct resource *res)
+ {
+ u32 address;
+ u64 base, msr;
+ unsigned segn_busn_bits;
+
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ return NULL;
+
+ /* assume all cpus from fam10h have mmconfig */
+ if (boot_cpu_data.x86 < 0x10)
+ return NULL;
+
+ address = MSR_FAM10H_MMIO_CONF_BASE;
+ rdmsrl(address, msr);
+
+ /* mmconfig is not enabled */
+ if (!(msr & FAM10H_MMIO_CONF_ENABLE))
+ return NULL;
+
+ base = msr & (FAM10H_MMIO_CONF_BASE_MASK<<FAM10H_MMIO_CONF_BASE_SHIFT);
+
+ segn_busn_bits = (msr >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) &
+ FAM10H_MMIO_CONF_BUSRANGE_MASK;
+
+ res->flags = IORESOURCE_MEM;
+ res->start = base;
+ res->end = base + (1ULL<<(segn_busn_bits + 20)) - 1;
+ return res;
+ }
+
int amd_get_subcaches(int cpu)
{
struct pci_dev *link = node_to_amd_nb(amd_get_nb_id(cpu))->link;
unsigned int mask;
- int cuid = 0;
+ int cuid;
if (!amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
return 0;
pci_read_config_dword(link, 0x1d4, &mask);
-#ifdef CONFIG_SMP
cuid = cpu_data(cpu).compute_unit_id;
-#endif
return (mask >> (4 * cuid)) & 0xf;
}
static unsigned int reset, ban;
struct amd_northbridge *nb = node_to_amd_nb(amd_get_nb_id(cpu));
unsigned int reg;
- int cuid = 0;
+ int cuid;
if (!amd_nb_has_feature(AMD_NB_L3_PARTITIONING) || mask > 0xf)
return -EINVAL;
pci_write_config_dword(nb->misc, 0x1b8, reg & ~0x180000);
}
-#ifdef CONFIG_SMP
cuid = cpu_data(cpu).compute_unit_id;
-#endif
mask <<= 4 * cuid;
mask |= (0xf ^ (1 << cuid)) << 26;
struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
.setup_percpu_clockev = setup_secondary_APIC_clock,
+ .fixup_cpu_id = x86_default_fixup_cpu_id,
};
static void default_nmi_init(void) { };
.setup_msi_irqs = native_setup_msi_irqs,
.teardown_msi_irq = native_teardown_msi_irq,
.teardown_msi_irqs = default_teardown_msi_irqs,
+ .restore_msi_irqs = default_restore_msi_irqs,
};
}
EXPORT_SYMBOL_GPL(pci_disable_ats);
+ void pci_restore_ats_state(struct pci_dev *dev)
+ {
+ u16 ctrl;
+
+ if (!pci_ats_enabled(dev))
+ return;
+ if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ATS))
+ BUG();
+
+ ctrl = PCI_ATS_CTRL_ENABLE;
+ if (!dev->is_virtfn)
+ ctrl |= PCI_ATS_CTRL_STU(dev->ats->stu - PCI_ATS_MIN_STU);
+
+ pci_write_config_word(dev, dev->ats->pos + PCI_ATS_CTRL, ctrl);
+ }
+ EXPORT_SYMBOL_GPL(pci_restore_ats_state);
+
/**
* pci_ats_queue_depth - query the ATS Invalidate Queue Depth
* @dev: the PCI device
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
- if ((control & PCI_PRI_ENABLE) || !(status & PCI_PRI_STATUS_STOPPED))
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
+ if ((control & PCI_PRI_CTRL_ENABLE) ||
+ !(status & PCI_PRI_STATUS_STOPPED))
return -EBUSY;
- pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ_OFF, &max_requests);
+ pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ, &max_requests);
reqs = min(max_requests, reqs);
- pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ_OFF, reqs);
+ pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ, reqs);
- control |= PCI_PRI_ENABLE;
- pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+ control |= PCI_PRI_CTRL_ENABLE;
+ pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
return 0;
}
if (!pos)
return;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
- control &= ~PCI_PRI_ENABLE;
- pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ control &= ~PCI_PRI_CTRL_ENABLE;
+ pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
}
EXPORT_SYMBOL_GPL(pci_disable_pri);
if (!pos)
return false;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
- return (control & PCI_PRI_ENABLE) ? true : false;
+ return (control & PCI_PRI_CTRL_ENABLE) ? true : false;
}
EXPORT_SYMBOL_GPL(pci_pri_enabled);
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
- if (control & PCI_PRI_ENABLE)
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ if (control & PCI_PRI_CTRL_ENABLE)
return -EBUSY;
- control |= PCI_PRI_RESET;
+ control |= PCI_PRI_CTRL_RESET;
- pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+ pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
return 0;
}
if (!pos)
return true;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
- if (control & PCI_PRI_ENABLE)
+ if (control & PCI_PRI_CTRL_ENABLE)
return false;
return (status & PCI_PRI_STATUS_STOPPED) ? true : false;
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
+ pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+ pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
/* Stopped bit is undefined when enable == 1, so clear it */
- if (control & PCI_PRI_ENABLE)
+ if (control & PCI_PRI_CTRL_ENABLE)
status &= ~PCI_PRI_STATUS_STOPPED;
return status;
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, &control);
- pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
+ pci_read_config_word(pdev, pos + PCI_PASID_CTRL, &control);
+ pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
- if (!(supported & PCI_PASID_ENABLE))
+ if (control & PCI_PASID_CTRL_ENABLE)
return -EINVAL;
- supported &= PCI_PASID_EXEC | PCI_PASID_PRIV;
+ supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
/* User wants to enable anything unsupported? */
if ((supported & features) != features)
return -EINVAL;
- control = PCI_PASID_ENABLE | features;
+ control = PCI_PASID_CTRL_ENABLE | features;
- pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
+ pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
return 0;
}
if (!pos)
return;
- pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
+ pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
}
EXPORT_SYMBOL_GPL(pci_disable_pasid);
* Returns a negative value when no PASI capability is present.
* Otherwise is returns a bitmask with supported features. Current
* features reported are:
- * PCI_PASID_ENABLE - PASID capability can be enabled
- * PCI_PASID_EXEC - Execute permission supported
- * PCI_PASID_PRIV - Priviledged mode supported
+ * PCI_PASID_CAP_EXEC - Execute permission supported
+ * PCI_PASID_CAP_PRIV - Priviledged mode supported
*/
int pci_pasid_features(struct pci_dev *pdev)
{
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
+ pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
- supported &= PCI_PASID_ENABLE | PCI_PASID_EXEC | PCI_PASID_PRIV;
+ supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
return supported;
}
if (!pos)
return -EINVAL;
- pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
+ pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
supported = (supported & PASID_NUMBER_MASK) >> PASID_NUMBER_SHIFT;
#define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
#define PCI_EXP_TYPE_PCI_BRIDGE 0x7 /* PCI/PCI-X Bridge */
#define PCI_EXP_TYPE_RC_END 0x9 /* Root Complex Integrated Endpoint */
- #define PCI_EXP_TYPE_RC_EC 0x10 /* Root Complex Event Collector */
+ #define PCI_EXP_TYPE_RC_EC 0xa /* Root Complex Event Collector */
#define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */
#define PCI_EXP_FLAGS_IRQ 0x3e00 /* Interrupt message number */
#define PCI_EXP_DEVCAP 4 /* Device capabilities */
#define PCI_ATS_MIN_STU 12 /* shift of minimum STU block */
/* Page Request Interface */
-#define PCI_PRI_CONTROL_OFF 0x04 /* Offset of control register */
-#define PCI_PRI_STATUS_OFF 0x06 /* Offset of status register */
-#define PCI_PRI_ENABLE 0x0001 /* Enable mask */
-#define PCI_PRI_RESET 0x0002 /* Reset bit mask */
-#define PCI_PRI_STATUS_RF 0x0001 /* Request Failure */
-#define PCI_PRI_STATUS_UPRGI 0x0002 /* Unexpected PRG index */
-#define PCI_PRI_STATUS_STOPPED 0x0100 /* PRI Stopped */
-#define PCI_PRI_MAX_REQ_OFF 0x08 /* Cap offset for max reqs supported */
-#define PCI_PRI_ALLOC_REQ_OFF 0x0c /* Cap offset for max reqs allowed */
+#define PCI_PRI_CTRL 0x04 /* PRI control register */
+#define PCI_PRI_CTRL_ENABLE 0x01 /* Enable */
+#define PCI_PRI_CTRL_RESET 0x02 /* Reset */
+#define PCI_PRI_STATUS 0x06 /* PRI status register */
+#define PCI_PRI_STATUS_RF 0x001 /* Response Failure */
+#define PCI_PRI_STATUS_UPRGI 0x002 /* Unexpected PRG index */
+#define PCI_PRI_STATUS_STOPPED 0x100 /* PRI Stopped */
+#define PCI_PRI_MAX_REQ 0x08 /* PRI max reqs supported */
+#define PCI_PRI_ALLOC_REQ 0x0c /* PRI max reqs allowed */
/* PASID capability */
-#define PCI_PASID_CAP_OFF 0x04 /* PASID feature register */
-#define PCI_PASID_CONTROL_OFF 0x06 /* PASID control register */
-#define PCI_PASID_ENABLE 0x01 /* Enable/Supported bit */
-#define PCI_PASID_EXEC 0x02 /* Exec permissions Enable/Supported */
-#define PCI_PASID_PRIV 0x04 /* Priviledge Mode Enable/Support */
+#define PCI_PASID_CAP 0x04 /* PASID feature register */
+#define PCI_PASID_CAP_EXEC 0x02 /* Exec permissions Supported */
+#define PCI_PASID_CAP_PRIV 0x04 /* Priviledge Mode Supported */
+#define PCI_PASID_CTRL 0x06 /* PASID control register */
+#define PCI_PASID_CTRL_ENABLE 0x01 /* Enable bit */
+#define PCI_PASID_CTRL_EXEC 0x02 /* Exec permissions Enable */
+#define PCI_PASID_CTRL_PRIV 0x04 /* Priviledge Mode Enable */
/* Single Root I/O Virtualization */
#define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */
}
EXPORT_SYMBOL(devm_iounmap);
+/**
+ * devm_request_and_ioremap() - Check, request region, and ioremap resource
+ * @dev: Generic device to handle the resource for
+ * @res: resource to be handled
+ *
+ * Takes all necessary steps to ioremap a mem resource. Uses managed device, so
+ * everything is undone on driver detach. Checks arguments, so you can feed
+ * it the result from e.g. platform_get_resource() directly. Returns the
+ * remapped pointer or NULL on error. Usage example:
+ *
+ * res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ * base = devm_request_and_ioremap(&pdev->dev, res);
+ * if (!base)
+ * return -EADDRNOTAVAIL;
+ */
+void __iomem *devm_request_and_ioremap(struct device *dev,
+ struct resource *res)
+{
+ resource_size_t size;
+ const char *name;
+ void __iomem *dest_ptr;
+
+ BUG_ON(!dev);
+
+ if (!res || resource_type(res) != IORESOURCE_MEM) {
+ dev_err(dev, "invalid resource\n");
+ return NULL;
+ }
+
+ size = resource_size(res);
+ name = res->name ?: dev_name(dev);
+
+ if (!devm_request_mem_region(dev, res->start, size, name)) {
+ dev_err(dev, "can't request region for resource %pR\n", res);
+ return NULL;
+ }
+
+ if (res->flags & IORESOURCE_CACHEABLE)
+ dest_ptr = devm_ioremap(dev, res->start, size);
+ else
+ dest_ptr = devm_ioremap_nocache(dev, res->start, size);
+
+ if (!dest_ptr) {
+ dev_err(dev, "ioremap failed for resource %pR\n", res);
+ devm_release_mem_region(dev, res->start, size);
+ }
+
+ return dest_ptr;
+}
+EXPORT_SYMBOL(devm_request_and_ioremap);
+
#ifdef CONFIG_HAS_IOPORT
/*
* Generic iomap devres
*
* Request and iomap regions specified by @mask.
*/
- int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name)
+ int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)
{
void __iomem * const *iomap;
int i, rc;
*
* Request all PCI BARs and iomap regions specified by @mask.
*/
- int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask,
+ int pcim_iomap_regions_request_all(struct pci_dev *pdev, int mask,
const char *name)
{
int request_mask = ((1 << 6) - 1) & ~mask;
*
* Unmap and release regions specified by @mask.
*/
- void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask)
+ void pcim_iounmap_regions(struct pci_dev *pdev, int mask)
{
void __iomem * const *iomap;
int i;
}
}
EXPORT_SYMBOL(pcim_iounmap_regions);
-#endif
-#endif
+#endif /* CONFIG_PCI */
+#endif /* CONFIG_HAS_IOPORT */
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