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Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (27 commits)
  [PATCH] PCI: nVidia quirk to make AER PCI-E extended capability visible
  [PATCH] PCI: fix issues with extended conf space when MMCONFIG disabled because of e820
  [PATCH] PCI: Bus Parity Status sysfs interface
  [PATCH] PCI: fix memory leak in MMCONFIG error path
  [PATCH] PCI: fix error with pci_get_device() call in the mpc85xx driver
  [PATCH] PCI: MSI-K8T-Neo2-Fir: run only where needed
  [PATCH] PCI: fix race with pci_walk_bus and pci_destroy_dev
  [PATCH] PCI: clean up pci documentation to be more specific
  [PATCH] PCI: remove unneeded msi code
  [PATCH] PCI: don't move ioapics below PCI bridge
  [PATCH] PCI: cleanup unused variable about msi driver
  [PATCH] PCI: disable msi mode in pci_disable_device
  [PATCH] PCI: Allow MSI to work on kexec kernel
  [PATCH] PCI: AMD 8131 MSI quirk called too late, bus_flags not inherited ?
  [PATCH] PCI: Move various PCI IDs to header file
  [PATCH] PCI Bus Parity Status-broken hardware attribute, EDAC foundation
  [PATCH] PCI: i386/x86_84: disable PCI resource decode on device disable
  [PATCH] PCI ACPI: Rename the functions to avoid multiple instances.
  [PATCH] PCI: don't enable device if already enabled
  [PATCH] PCI: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
  ...
This commit is contained in:
Linus Torvalds 2006-06-22 15:07:59 -07:00
parent dcc1a66a09 cf34a8e07f
commit 6c763eb9ea
45 changed files with 1103 additions and 443 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Documentation/pci.txt
View File

@ -213,9 +213,17 @@ have been remapped by the kernel.
See Documentation/IO-mapping.txt for how to access device memory.
You still need to call request_region() for I/O regions and
request_mem_region() for memory regions to make sure nobody else is using the
same device.
The device driver needs to call pci_request_region() to make sure
no other device is already using the same resource. The driver is expected
to determine MMIO and IO Port resource availability _before_ calling
pci_enable_device(). Conversely, drivers should call pci_release_region()
_after_ calling pci_disable_device(). The idea is to prevent two devices
colliding on the same address range.
Generic flavors of pci_request_region() are request_mem_region()
(for MMIO ranges) and request_region() (for IO Port ranges).
Use these for address resources that are not described by "normal" PCI
interfaces (e.g. BAR).
All interrupt handlers should be registered with SA_SHIRQ and use the devid
to map IRQs to devices (remember that all PCI interrupts are shared).

2
arch/i386/kernel/acpi/boot.c
View File

@ -202,6 +202,8 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
if (mcfg->config[i].base_reserved) {
printk(KERN_ERR PREFIX
"MMCONFIG not in low 4GB of memory\n");
kfree(pci_mmcfg_config);
pci_mmcfg_config_num = 0;
return -ENODEV;
}
}

1
arch/i386/pci/common.c
View File

@ -288,6 +288,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
void pcibios_disable_device (struct pci_dev *dev)
{
pcibios_disable_resources(dev);
if (pcibios_disable_irq)
pcibios_disable_irq(dev);
}

9
arch/i386/pci/i386.c
View File

@ -242,6 +242,15 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
return 0;
}
void pcibios_disable_resources(struct pci_dev *dev)
{
u16 cmd;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
/*
* If we set up a device for bus mastering, we need to check the latency
* timer as certain crappy BIOSes forget to set it properly.

9
arch/i386/pci/mmconfig.c
View File

@ -15,7 +15,9 @@
#include <asm/e820.h>
#include "pci.h"
#define MMCONFIG_APER_SIZE (256*1024*1024)
/* aperture is up to 256MB but BIOS may reserve less */
#define MMCONFIG_APER_MIN (2 * 1024*1024)
#define MMCONFIG_APER_MAX (256 * 1024*1024)
/* Assume systems with more busses have correct MCFG */
#define MAX_CHECK_BUS 16
@ -197,9 +199,10 @@ void __init pci_mmcfg_init(void)
return;
if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
E820_RESERVED)) {
printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
pci_mmcfg_config[0].base_address);
printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
return;
}

1
arch/i386/pci/pci.h
View File

@ -35,6 +35,7 @@ extern unsigned int pcibios_max_latency;
void pcibios_resource_survey(void);
int pcibios_enable_resources(struct pci_dev *, int);
void pcibios_disable_resources(struct pci_dev *);
/* pci-pc.c */

19
arch/ia64/kernel/irq_ia64.c
View File

@ -46,6 +46,10 @@
#define IRQ_DEBUG 0
/* These can be overridden in platform_irq_init */
int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
/* default base addr of IPI table */
void __iomem *ipi_base_addr = ((void __iomem *)
(__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR));
@ -60,7 +64,7 @@ __u8 isa_irq_to_vector_map[16] = {
};
EXPORT_SYMBOL(isa_irq_to_vector_map);
static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)];
static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)];
int
assign_irq_vector (int irq)
@ -89,6 +93,19 @@ free_irq_vector (int vector)
printk(KERN_WARNING "%s: double free!\n", __FUNCTION__);
}
int
reserve_irq_vector (int vector)
{
int pos;
if (vector < IA64_FIRST_DEVICE_VECTOR ||
vector > IA64_LAST_DEVICE_VECTOR)
return -EINVAL;
pos = vector - IA64_FIRST_DEVICE_VECTOR;
return test_and_set_bit(pos, ia64_vector_mask);
}
#ifdef CONFIG_SMP
# define IS_RESCHEDULE(vec) (vec == IA64_IPI_RESCHEDULE)
#else

9
arch/ia64/sn/kernel/io_init.c
View File

@ -58,7 +58,7 @@ static int max_pcibus_number = 255; /* Default highest pci bus number */
*/
static dma_addr_t
sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size)
sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
{
return 0;
}
@ -457,13 +457,6 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
pcidev_info->pdi_sn_irq_info = NULL;
kfree(sn_irq_info);
}
/*
* MSI currently not supported on altix. Remove this when
* the MSI abstraction patches are integrated into the kernel
* (sometime after 2.6.16 releases)
*/
dev->no_msi = 1;
}
/*

158
arch/ia64/sn/kernel/irq.c
View File

@ -26,11 +26,11 @@ static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
int sn_force_interrupt_flag = 1;
extern int sn_ioif_inited;
static struct list_head **sn_irq_lh;
struct list_head **sn_irq_lh;
static spinlock_t sn_irq_info_lock = SPIN_LOCK_UNLOCKED; /* non-IRQ lock */
static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
u64 sn_irq_info,
u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
struct sn_irq_info *sn_irq_info,
int req_irq, nasid_t req_nasid,
int req_slice)
{
@ -40,12 +40,13 @@ static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_INTERRUPT,
(u64) SAL_INTR_ALLOC, (u64) local_nasid,
(u64) local_widget, (u64) sn_irq_info, (u64) req_irq,
(u64) local_widget, __pa(sn_irq_info), (u64) req_irq,
(u64) req_nasid, (u64) req_slice);
return ret_stuff.status;
}
static inline void sn_intr_free(nasid_t local_nasid, int local_widget,
void sn_intr_free(nasid_t local_nasid, int local_widget,
struct sn_irq_info *sn_irq_info)
{
struct ia64_sal_retval ret_stuff;
@ -112,73 +113,91 @@ static void sn_end_irq(unsigned int irq)
static void sn_irq_info_free(struct rcu_head *head);
struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
nasid_t nasid, int slice)
{
int vector;
int cpuphys;
int64_t bridge;
int local_widget, status;
nasid_t local_nasid;
struct sn_irq_info *new_irq_info;
struct sn_pcibus_provider *pci_provider;
new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
if (new_irq_info == NULL)
return NULL;
memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
bridge = (u64) new_irq_info->irq_bridge;
if (!bridge) {
kfree(new_irq_info);
return NULL; /* irq is not a device interrupt */
}
local_nasid = NASID_GET(bridge);
if (local_nasid & 1)
local_widget = TIO_SWIN_WIDGETNUM(bridge);
else
local_widget = SWIN_WIDGETNUM(bridge);
vector = sn_irq_info->irq_irq;
/* Free the old PROM new_irq_info structure */
sn_intr_free(local_nasid, local_widget, new_irq_info);
/* Update kernels new_irq_info with new target info */
unregister_intr_pda(new_irq_info);
/* allocate a new PROM new_irq_info struct */
status = sn_intr_alloc(local_nasid, local_widget,
new_irq_info, vector,
nasid, slice);
/* SAL call failed */
if (status) {
kfree(new_irq_info);
return NULL;
}
cpuphys = nasid_slice_to_cpuid(nasid, slice);
new_irq_info->irq_cpuid = cpuphys;
register_intr_pda(new_irq_info);
pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
/*
* If this represents a line interrupt, target it. If it's
* an msi (irq_int_bit < 0), it's already targeted.
*/
if (new_irq_info->irq_int_bit >= 0 &&
pci_provider && pci_provider->target_interrupt)
(pci_provider->target_interrupt)(new_irq_info);
spin_lock(&sn_irq_info_lock);
list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
spin_unlock(&sn_irq_info_lock);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
#ifdef CONFIG_SMP
set_irq_affinity_info((vector & 0xff), cpuphys, 0);
#endif
return new_irq_info;
}
static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
{
struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
int cpuid, cpuphys;
nasid_t nasid;
int slice;
cpuid = first_cpu(mask);
cpuphys = cpu_physical_id(cpuid);
nasid = cpuid_to_nasid(first_cpu(mask));
slice = cpuid_to_slice(first_cpu(mask));
list_for_each_entry_safe(sn_irq_info, sn_irq_info_safe,
sn_irq_lh[irq], list) {
u64 bridge;
int local_widget, status;
nasid_t local_nasid;
struct sn_irq_info *new_irq_info;
struct sn_pcibus_provider *pci_provider;
new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
if (new_irq_info == NULL)
break;
memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
bridge = (u64) new_irq_info->irq_bridge;
if (!bridge) {
kfree(new_irq_info);
break; /* irq is not a device interrupt */
}
local_nasid = NASID_GET(bridge);
if (local_nasid & 1)
local_widget = TIO_SWIN_WIDGETNUM(bridge);
else
local_widget = SWIN_WIDGETNUM(bridge);
/* Free the old PROM new_irq_info structure */
sn_intr_free(local_nasid, local_widget, new_irq_info);
/* Update kernels new_irq_info with new target info */
unregister_intr_pda(new_irq_info);
/* allocate a new PROM new_irq_info struct */
status = sn_intr_alloc(local_nasid, local_widget,
__pa(new_irq_info), irq,
cpuid_to_nasid(cpuid),
cpuid_to_slice(cpuid));
/* SAL call failed */
if (status) {
kfree(new_irq_info);
break;
}
new_irq_info->irq_cpuid = cpuid;
register_intr_pda(new_irq_info);
pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
if (pci_provider && pci_provider->target_interrupt)
(pci_provider->target_interrupt)(new_irq_info);
spin_lock(&sn_irq_info_lock);
list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
spin_unlock(&sn_irq_info_lock);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
#ifdef CONFIG_SMP
set_irq_affinity_info((irq & 0xff), cpuphys, 0);
#endif
}
sn_irq_lh[irq], list)
(void)sn_retarget_vector(sn_irq_info, nasid, slice);
}
struct hw_interrupt_type irq_type_sn = {
@ -202,6 +221,9 @@ void sn_irq_init(void)
int i;
irq_desc_t *base_desc = irq_desc;
ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR;
ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR;
for (i = 0; i < NR_IRQS; i++) {
if (base_desc[i].handler == &no_irq_type) {
base_desc[i].handler = &irq_type_sn;
@ -285,6 +307,7 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
/* link it into the sn_irq[irq] list */
spin_lock(&sn_irq_info_lock);
list_add_rcu(&sn_irq_info->list, sn_irq_lh[sn_irq_info->irq_irq]);
reserve_irq_vector(sn_irq_info->irq_irq);
spin_unlock(&sn_irq_info_lock);
register_intr_pda(sn_irq_info);
@ -310,8 +333,11 @@ void sn_irq_unfixup(struct pci_dev *pci_dev)
spin_lock(&sn_irq_info_lock);
list_del_rcu(&sn_irq_info->list);
spin_unlock(&sn_irq_info_lock);
if (list_empty(sn_irq_lh[sn_irq_info->irq_irq]))
free_irq_vector(sn_irq_info->irq_irq);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
pci_dev_put(pci_dev);
}
static inline void

10
arch/ia64/sn/pci/pci_dma.c
View File

@ -11,7 +11,7 @@
#include <linux/module.h>
#include <asm/dma.h>
#include <asm/sn/pcibr_provider.h>
#include <asm/sn/intr.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
@ -113,7 +113,8 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
* resources.
*/
*dma_handle = provider->dma_map_consistent(pdev, phys_addr, size);
*dma_handle = provider->dma_map_consistent(pdev, phys_addr, size,
SN_DMA_ADDR_PHYS);
if (!*dma_handle) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
free_pages((unsigned long)cpuaddr, get_order(size));
@ -176,7 +177,7 @@ dma_addr_t sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size,
BUG_ON(dev->bus != &pci_bus_type);
phys_addr = __pa(cpu_addr);
dma_addr = provider->dma_map(pdev, phys_addr, size);
dma_addr = provider->dma_map(pdev, phys_addr, size, SN_DMA_ADDR_PHYS);
if (!dma_addr) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
return 0;
@ -260,7 +261,8 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
for (i = 0; i < nhwentries; i++, sg++) {
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
sg->dma_address = provider->dma_map(pdev,
phys_addr, sg->length);
phys_addr, sg->length,
SN_DMA_ADDR_PHYS);
if (!sg->dma_address) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);

62
arch/ia64/sn/pci/pcibr/pcibr_dma.c
View File

@ -41,7 +41,7 @@ extern int sn_ioif_inited;
static dma_addr_t
pcibr_dmamap_ate32(struct pcidev_info *info,
u64 paddr, size_t req_size, u64 flags)
u64 paddr, size_t req_size, u64 flags, int dma_flags)
{
struct pcidev_info *pcidev_info = info->pdi_host_pcidev_info;
@ -81,9 +81,12 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (IS_PCIX(pcibus_info))
ate_flags &= ~(PCI32_ATE_PREF);
xio_addr =
IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr);
if (SN_DMA_ADDRTYPE(dma_flags == SN_DMA_ADDR_PHYS))
xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr);
else
xio_addr = paddr;
offset = IOPGOFF(xio_addr);
ate = ate_flags | (xio_addr - offset);
@ -91,6 +94,13 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (IS_PIC_SOFT(pcibus_info)) {
ate |= (pcibus_info->pbi_hub_xid << PIC_ATE_TARGETID_SHFT);
}
/*
* If we're mapping for MSI, set the MSI bit in the ATE
*/
if (dma_flags & SN_DMA_MSI)
ate |= PCI32_ATE_MSI;
ate_write(pcibus_info, ate_index, ate_count, ate);
/*
@ -105,20 +115,27 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (pcibus_info->pbi_devreg[internal_device] & PCIBR_DEV_SWAP_DIR)
ATE_SWAP_ON(pci_addr);
return pci_addr;
}
static dma_addr_t
pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
u64 dma_attributes)
u64 dma_attributes, int dma_flags)
{
struct pcibus_info *pcibus_info = (struct pcibus_info *)
((info->pdi_host_pcidev_info)->pdi_pcibus_info);
u64 pci_addr;
/* Translate to Crosstalk View of Physical Address */
pci_addr = (IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr)) | dma_attributes;
if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
pci_addr = IS_PIC_SOFT(pcibus_info) ?
PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr) | dma_attributes;
else
pci_addr = IS_PIC_SOFT(pcibus_info) ?
paddr :
paddr | dma_attributes;
/* Handle Bus mode */
if (IS_PCIX(pcibus_info))
@ -130,7 +147,9 @@ pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
((u64) pcibus_info->
pbi_hub_xid << PIC_PCI64_ATTR_TARG_SHFT);
} else
pci_addr |= TIOCP_PCI64_CMDTYPE_MEM;
pci_addr |= (dma_flags & SN_DMA_MSI) ?
TIOCP_PCI64_CMDTYPE_MSI :
TIOCP_PCI64_CMDTYPE_MEM;
/* If PCI mode, func zero uses VCHAN0, every other func uses VCHAN1 */
if (!IS_PCIX(pcibus_info) && PCI_FUNC(info->pdi_linux_pcidev->devfn))
@ -141,7 +160,7 @@ pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
static dma_addr_t
pcibr_dmatrans_direct32(struct pcidev_info * info,
u64 paddr, size_t req_size, u64 flags)
u64 paddr, size_t req_size, u64 flags, int dma_flags)
{
struct pcidev_info *pcidev_info = info->pdi_host_pcidev_info;
struct pcibus_info *pcibus_info = (struct pcibus_info *)pcidev_info->
@ -156,8 +175,14 @@ pcibr_dmatrans_direct32(struct pcidev_info * info,
return 0;
}
xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr);
if (dma_flags & SN_DMA_MSI)
return 0;
if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
PHYS_TO_TIODMA(paddr);
else
xio_addr = paddr;
xio_base = pcibus_info->pbi_dir_xbase;
offset = xio_addr - xio_base;
@ -327,7 +352,7 @@ void sn_dma_flush(u64 addr)
*/
dma_addr_t
pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size, int dma_flags)
{
dma_addr_t dma_handle;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
@ -344,11 +369,11 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
*/
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_PREF);
PCI64_ATTR_PREF, dma_flags);
} else {
/* Handle 32-63 bit cards via direct mapping */
dma_handle = pcibr_dmatrans_direct32(pcidev_info, phys_addr,
size, 0);
size, 0, dma_flags);
if (!dma_handle) {
/*
* It is a 32 bit card and we cannot do direct mapping,
@ -356,7 +381,8 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
*/
dma_handle = pcibr_dmamap_ate32(pcidev_info, phys_addr,
size, PCI32_ATE_PREF);
size, PCI32_ATE_PREF,
dma_flags);
}
}
@ -365,18 +391,18 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
dma_addr_t
pcibr_dma_map_consistent(struct pci_dev * hwdev, unsigned long phys_addr,
size_t size)
size_t size, int dma_flags)
{
dma_addr_t dma_handle;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
if (hwdev->dev.coherent_dma_mask == ~0UL) {
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
PCI64_ATTR_BAR);
PCI64_ATTR_BAR, dma_flags);
} else {
dma_handle = (dma_addr_t) pcibr_dmamap_ate32(pcidev_info,
phys_addr, size,
PCI32_ATE_BAR);
PCI32_ATE_BAR, dma_flags);
}
return dma_handle;

8
arch/ia64/sn/pci/tioca_provider.c
View File

@ -515,10 +515,16 @@ tioca_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
* use the GART mapped mode.
*/
static u64
tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count)
tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
u64 mapaddr;
/*
* Not supported for now ...
*/
if (dma_flags & SN_DMA_MSI)
return 0;
/*
* If card is 64 or 48 bit addresable, use a direct mapping. 32
* bit direct is so restrictive w.r.t. where the memory resides that

65
arch/ia64/sn/pci/tioce_provider.c
View File

@ -170,7 +170,8 @@ tioce_mmr_war_post(struct tioce_kernel *kern, void *mmr_addr)
(ATE_PAGE((start)+(len)-1, pagesize) - ATE_PAGE(start, pagesize) + 1)
#define ATE_VALID(ate) ((ate) & (1UL << 63))
#define ATE_MAKE(addr, ps) (((addr) & ~ATE_PAGEMASK(ps)) | (1UL << 63))
#define ATE_MAKE(addr, ps, msi) \
(((addr) & ~ATE_PAGEMASK(ps)) | (1UL << 63) | ((msi)?(1UL << 62):0))
/*
* Flavors of ate-based mapping supported by tioce_alloc_map()
@ -196,15 +197,17 @@ tioce_mmr_war_post(struct tioce_kernel *kern, void *mmr_addr)
*
* 63 - must be 1 to indicate d64 mode to CE hardware
* 62 - barrier bit ... controlled with tioce_dma_barrier()
* 61 - 0 since this is not an MSI transaction
* 61 - msi bit ... specified through dma_flags
* 60:54 - reserved, MBZ
*/
static u64
tioce_dma_d64(unsigned long ct_addr)
tioce_dma_d64(unsigned long ct_addr, int dma_flags)
{
u64 bus_addr;
bus_addr = ct_addr | (1UL << 63);
if (dma_flags & SN_DMA_MSI)
bus_addr |= (1UL << 61);
return bus_addr;
}
@ -261,7 +264,7 @@ pcidev_to_tioce(struct pci_dev *pdev, struct tioce **base,
*/
static u64
tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
u64 ct_addr, int len)
u64 ct_addr, int len, int dma_flags)
{
int i;
int j;
@ -270,6 +273,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
int entries;
int nates;
u64 pagesize;
int msi_capable, msi_wanted;
u64 *ate_shadow;
u64 *ate_reg;
u64 addr;
@ -291,6 +295,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate3240;
pagesize = ce_kern->ce_ate3240_pagesize;
bus_base = TIOCE_M32_MIN;
msi_capable = 1;
break;
case TIOCE_ATE_M40:
first = 0;
@ -299,6 +304,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate40;
pagesize = MB(64);
bus_base = TIOCE_M40_MIN;
msi_capable = 0;
break;
case TIOCE_ATE_M40S:
/*
@ -311,11 +317,16 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate3240;
pagesize = GB(16);
bus_base = TIOCE_M40S_MIN;
msi_capable = 0;
break;
default:
return 0;
}
msi_wanted = dma_flags & SN_DMA_MSI;
if (msi_wanted && !msi_capable)
return 0;
nates = ATE_NPAGES(ct_addr, len, pagesize);
if (nates > entries)
return 0;
@ -344,7 +355,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
for (j = 0; j < nates; j++) {
u64 ate;
ate = ATE_MAKE(addr, pagesize);
ate = ATE_MAKE(addr, pagesize, msi_wanted);
ate_shadow[i + j] = ate;
tioce_mmr_storei(ce_kern, &ate_reg[i + j], ate);
addr += pagesize;
@ -371,7 +382,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
* Map @paddr into 32-bit bus space of the CE associated with @pcidev_info.
*/
static u64
tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr)
tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr, int dma_flags)
{
int dma_ok;
int port;
@ -381,6 +392,9 @@ tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr)
u64 ct_lower;
dma_addr_t bus_addr;
if (dma_flags & SN_DMA_MSI)
return 0;
ct_upper = ct_addr & ~0x3fffffffUL;
ct_lower = ct_addr & 0x3fffffffUL;
@ -507,7 +521,7 @@ tioce_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
*/
static u64
tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
int barrier)
int barrier, int dma_flags)
{
unsigned long flags;
u64 ct_addr;
@ -523,15 +537,18 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (dma_mask < 0x7fffffffUL)
return 0;
ct_addr = PHYS_TO_TIODMA(paddr);
if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
ct_addr = PHYS_TO_TIODMA(paddr);
else
ct_addr = paddr;
/*
* If the device can generate 64 bit addresses, create a D64 map.
* Since this should never fail, bypass the rest of the checks.
*/
if (dma_mask == ~0UL) {
mapaddr = tioce_dma_d64(ct_addr);
goto dma_map_done;
mapaddr = tioce_dma_d64(ct_addr, dma_flags);
if (mapaddr)
goto dma_map_done;
}
pcidev_to_tioce(pdev, NULL, &ce_kern, &port);
@ -574,18 +591,22 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (byte_count > MB(64)) {
mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
port, ct_addr, byte_count);
port, ct_addr, byte_count,
dma_flags);
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
ct_addr, byte_count);
ct_addr, byte_count,
dma_flags);
} else {
mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
ct_addr, byte_count);
ct_addr, byte_count,
dma_flags);
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
port, ct_addr, byte_count);
port, ct_addr, byte_count,
dma_flags);
}
}
@ -593,7 +614,7 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
* 32-bit direct is the next mode to try
*/
if (!mapaddr && dma_mask >= 0xffffffffUL)
mapaddr = tioce_dma_d32(pdev, ct_addr);
mapaddr = tioce_dma_d32(pdev, ct_addr, dma_flags);
/*
* Last resort, try 32-bit ATE-based map.
@ -601,7 +622,7 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M32, -1, ct_addr,
byte_count);
byte_count, dma_flags);
spin_unlock_irqrestore(&ce_kern->ce_lock, flags);
@ -622,9 +643,9 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
* in the address.
*/
static u64
tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count)
tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
return tioce_do_dma_map(pdev, paddr, byte_count, 0);
return tioce_do_dma_map(pdev, paddr, byte_count, 0, dma_flags);
}
/**
@ -636,9 +657,9 @@ tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count)
* Simply call tioce_do_dma_map() to create a map with the barrier bit set
* in the address.
*/ static u64
tioce_dma_consistent(struct pci_dev *pdev, u64 paddr, size_t byte_count)
tioce_dma_consistent(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
return tioce_do_dma_map(pdev, paddr, byte_count, 1);
return tioce_do_dma_map(pdev, paddr, byte_count, 1, dma_flags);
}
/**
@ -696,7 +717,7 @@ tioce_reserve_m32(struct tioce_kernel *ce_kern, u64 base, u64 limit)
while (ate_index <= last_ate) {
u64 ate;
ate = ATE_MAKE(0xdeadbeef, ps);
ate = ATE_MAKE(0xdeadbeef, ps, 0);
ce_kern->ce_ate3240_shadow[ate_index] = ate;
tioce_mmr_storei(ce_kern, &ce_mmr->ce_ure_ate3240[ate_index],
ate);

9
arch/ppc/platforms/85xx/mpc85xx_cds_common.c
View File

@ -379,13 +379,12 @@ mpc85xx_cds_pcibios_fixup(void)
PCI_DEVICE_ID_VIA_82C586_2, NULL))) {
dev->irq = 10;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 10);
pci_dev_put(dev);
}
if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C586_2, dev))) {
dev->irq = 11;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
dev->irq = 11;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
}
pci_dev_put(dev);
}
}

13
arch/x86_64/pci/mmconfig.c
View File

@ -13,7 +13,10 @@
#include "pci.h"
#define MMCONFIG_APER_SIZE (256*1024*1024)
/* aperture is up to 256MB but BIOS may reserve less */
#define MMCONFIG_APER_MIN (2 * 1024*1024)
#define MMCONFIG_APER_MAX (256 * 1024*1024)
/* Verify the first 16 busses. We assume that systems with more busses
get MCFG right. */
#define MAX_CHECK_BUS 16
@ -175,9 +178,10 @@ void __init pci_mmcfg_init(void)
return;
if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
E820_RESERVED)) {
printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
pci_mmcfg_config[0].base_address);
printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
return;
}
@ -190,7 +194,8 @@ void __init pci_mmcfg_init(void)
}
for (i = 0; i < pci_mmcfg_config_num; ++i) {
pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i];
pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address, MMCONFIG_APER_SIZE);
pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address,
MMCONFIG_APER_MAX);
if (!pci_mmcfg_virt[i].virt) {
printk("PCI: Cannot map mmconfig aperture for segment %d\n",
pci_mmcfg_config[i].pci_segment_group_number);

6
drivers/pci/Makefile
View File

@ -26,7 +26,11 @@ obj-$(CONFIG_PPC32) += setup-irq.o
obj-$(CONFIG_PPC64) += setup-bus.o
obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
obj-$(CONFIG_X86_VISWS) += setup-irq.o
obj-$(CONFIG_PCI_MSI) += msi.o
msiobj-y := msi.o msi-apic.o
msiobj-$(CONFIG_IA64_GENERIC) += msi-altix.o
msiobj-$(CONFIG_IA64_SGI_SN2) += msi-altix.o
obj-$(CONFIG_PCI_MSI) += $(msiobj-y)
#
# ACPI Related PCI FW Functions

21
drivers/pci/bus.c
View File

@ -81,9 +81,9 @@ void __devinit pci_bus_add_device(struct pci_dev *dev)
{
device_add(&dev->dev);
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_add_tail(&dev->global_list, &pci_devices);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
pci_proc_attach_device(dev);
pci_create_sysfs_dev_files(dev);
@ -125,10 +125,10 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus)
*/
if (dev->subordinate) {
if (list_empty(&dev->subordinate->node)) {
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_add_tail(&dev->subordinate->node,
&dev->bus->children);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
}
pci_bus_add_devices(dev->subordinate);
@ -168,7 +168,7 @@ void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
struct list_head *next;
bus = top;
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
next = top->devices.next;
for (;;) {
if (next == &bus->devices) {
@ -180,22 +180,19 @@ void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
continue;
}
dev = list_entry(next, struct pci_dev, bus_list);
pci_dev_get(dev);
if (dev->subordinate) {
/* this is a pci-pci bridge, do its devices next */
next = dev->subordinate->devices.next;
bus = dev->subordinate;
} else
next = dev->bus_list.next;
spin_unlock(&pci_bus_lock);
/* Run device routines with the bus unlocked */
/* Run device routines with the device locked */
down(&dev->dev.sem);
cb(dev, userdata);
spin_lock(&pci_bus_lock);
pci_dev_put(dev);
up(&dev->dev.sem);
}
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
}
EXPORT_SYMBOL_GPL(pci_walk_bus);

210
drivers/pci/msi-altix.c Normal file
View File

@ -0,0 +1,210 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/cpumask.h>
#include <asm/sn/addrs.h>
#include <asm/sn/intr.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/nodepda.h>
#include "msi.h"
struct sn_msi_info {
u64 pci_addr;
struct sn_irq_info *sn_irq_info;
};
static struct sn_msi_info *sn_msi_info;
static void
sn_msi_teardown(unsigned int vector)
{
nasid_t nasid;
int widget;
struct pci_dev *pdev;
struct pcidev_info *sn_pdev;
struct sn_irq_info *sn_irq_info;
struct pcibus_bussoft *bussoft;
struct sn_pcibus_provider *provider;
sn_irq_info = sn_msi_info[vector].sn_irq_info;
if (sn_irq_info == NULL || sn_irq_info->irq_int_bit >= 0)
return;
sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
pdev = sn_pdev->pdi_linux_pcidev;
provider = SN_PCIDEV_BUSPROVIDER(pdev);
(*provider->dma_unmap)(pdev,
sn_msi_info[vector].pci_addr,
PCI_DMA_FROMDEVICE);
sn_msi_info[vector].pci_addr = 0;
bussoft = SN_PCIDEV_BUSSOFT(pdev);
nasid = NASID_GET(bussoft->bs_base);
widget = (nasid & 1) ?
TIO_SWIN_WIDGETNUM(bussoft->bs_base) :
SWIN_WIDGETNUM(bussoft->bs_base);
sn_intr_free(nasid, widget, sn_irq_info);
sn_msi_info[vector].sn_irq_info = NULL;
return;
}
int
sn_msi_setup(struct pci_dev *pdev, unsigned int vector,
u32 *addr_hi, u32 *addr_lo, u32 *data)
{
int widget;
int status;
nasid_t nasid;
u64 bus_addr;
struct sn_irq_info *sn_irq_info;
struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
if (bussoft == NULL)
return -EINVAL;
if (provider == NULL || provider->dma_map_consistent == NULL)
return -EINVAL;
/*
* Set up the vector plumbing. Let the prom (via sn_intr_alloc)
* decide which cpu to direct this msi at by default.
*/
nasid = NASID_GET(bussoft->bs_base);
widget = (nasid & 1) ?
TIO_SWIN_WIDGETNUM(bussoft->bs_base) :
SWIN_WIDGETNUM(bussoft->bs_base);
sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
if (! sn_irq_info)
return -ENOMEM;
status = sn_intr_alloc(nasid, widget, sn_irq_info, vector, -1, -1);
if (status) {
kfree(sn_irq_info);
return -ENOMEM;
}
sn_irq_info->irq_int_bit = -1; /* mark this as an MSI irq */
sn_irq_fixup(pdev, sn_irq_info);
/* Prom probably should fill these in, but doesn't ... */
sn_irq_info->irq_bridge_type = bussoft->bs_asic_type;
sn_irq_info->irq_bridge = (void *)bussoft->bs_base;
/*
* Map the xio address into bus space
*/
bus_addr = (*provider->dma_map_consistent)(pdev,
sn_irq_info->irq_xtalkaddr,
sizeof(sn_irq_info->irq_xtalkaddr),
SN_DMA_MSI|SN_DMA_ADDR_XIO);
if (! bus_addr) {
sn_intr_free(nasid, widget, sn_irq_info);
kfree(sn_irq_info);
return -ENOMEM;
}
sn_msi_info[vector].sn_irq_info = sn_irq_info;
sn_msi_info[vector].pci_addr = bus_addr;
*addr_hi = (u32)(bus_addr >> 32);
*addr_lo = (u32)(bus_addr & 0x00000000ffffffff);
/*
* In the SN platform, bit 16 is a "send vector" bit which
* must be present in order to move the vector through the system.
*/
*data = 0x100 + (unsigned int)vector;
#ifdef CONFIG_SMP
set_irq_affinity_info((vector & 0xff), sn_irq_info->irq_cpuid, 0);
#endif
return 0;
}
static void
sn_msi_target(unsigned int vector, unsigned int cpu,
u32 *addr_hi, u32 *addr_lo)
{
int slice;
nasid_t nasid;
u64 bus_addr;
struct pci_dev *pdev;
struct pcidev_info *sn_pdev;
struct sn_irq_info *sn_irq_info;
struct sn_irq_info *new_irq_info;
struct sn_pcibus_provider *provider;
sn_irq_info = sn_msi_info[vector].sn_irq_info;
if (sn_irq_info == NULL || sn_irq_info->irq_int_bit >= 0)
return;
/*
* Release XIO resources for the old MSI PCI address
*/
sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
pdev = sn_pdev->pdi_linux_pcidev;
provider = SN_PCIDEV_BUSPROVIDER(pdev);
bus_addr = (u64)(*addr_hi) << 32 | (u64)(*addr_lo);
(*provider->dma_unmap)(pdev, bus_addr, PCI_DMA_FROMDEVICE);
sn_msi_info[vector].pci_addr = 0;
nasid = cpuid_to_nasid(cpu);
slice = cpuid_to_slice(cpu);
new_irq_info = sn_retarget_vector(sn_irq_info, nasid, slice);
sn_msi_info[vector].sn_irq_info = new_irq_info;
if (new_irq_info == NULL)
return;
/*
* Map the xio address into bus space
*/
bus_addr = (*provider->dma_map_consistent)(pdev,
new_irq_info->irq_xtalkaddr,
sizeof(new_irq_info->irq_xtalkaddr),
SN_DMA_MSI|SN_DMA_ADDR_XIO);
sn_msi_info[vector].pci_addr = bus_addr;
*addr_hi = (u32)(bus_addr >> 32);
*addr_lo = (u32)(bus_addr & 0x00000000ffffffff);
}
struct msi_ops sn_msi_ops = {
.setup = sn_msi_setup,
.teardown = sn_msi_teardown,
#ifdef CONFIG_SMP
.target = sn_msi_target,
#endif
};
int
sn_msi_init(void)
{
sn_msi_info =
kzalloc(sizeof(struct sn_msi_info) * NR_VECTORS, GFP_KERNEL);
if (! sn_msi_info)
return -ENOMEM;
msi_register(&sn_msi_ops);
return 0;
}

100
drivers/pci/msi-apic.c Normal file
View File

@ -0,0 +1,100 @@
/*
* MSI hooks for standard x86 apic
*/
#include <linux/pci.h>
#include <linux/irq.h>
#include "msi.h"
/*
* Shifts for APIC-based data
*/
#define MSI_DATA_VECTOR_SHIFT 0
#define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT)
#define MSI_DATA_DELIVERY_SHIFT 8
#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_SHIFT)
#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_SHIFT)
#define MSI_DATA_LEVEL_SHIFT 14
#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
#define MSI_DATA_TRIGGER_SHIFT 15
#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
/*
* Shift/mask fields for APIC-based bus address
*/
#define MSI_ADDR_HEADER 0xfee00000
#define MSI_ADDR_DESTID_MASK 0xfff0000f
#define MSI_ADDR_DESTID_CPU(cpu) ((cpu) << MSI_TARGET_CPU_SHIFT)
#define MSI_ADDR_DESTMODE_SHIFT 2
#define MSI_ADDR_DESTMODE_PHYS (0 << MSI_ADDR_DESTMODE_SHIFT)
#define MSI_ADDR_DESTMODE_LOGIC (1 << MSI_ADDR_DESTMODE_SHIFT)
#define MSI_ADDR_REDIRECTION_SHIFT 3
#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
static void
msi_target_apic(unsigned int vector,
unsigned int dest_cpu,
u32 *address_hi, /* in/out */
u32 *address_lo) /* in/out */
{
u32 addr = *address_lo;
addr &= MSI_ADDR_DESTID_MASK;
addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(dest_cpu));
*address_lo = addr;
}
static int
msi_setup_apic(struct pci_dev *pdev, /* unused in generic */
unsigned int vector,
u32 *address_hi,
u32 *address_lo,
u32 *data)
{
unsigned long dest_phys_id;
dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
*address_hi = 0;
*address_lo = MSI_ADDR_HEADER |
MSI_ADDR_DESTMODE_PHYS |
MSI_ADDR_REDIRECTION_CPU |
MSI_ADDR_DESTID_CPU(dest_phys_id);
*data = MSI_DATA_TRIGGER_EDGE |
MSI_DATA_LEVEL_ASSERT |
MSI_DATA_DELIVERY_FIXED |
MSI_DATA_VECTOR(vector);
return 0;
}
static void
msi_teardown_apic(unsigned int vector)
{
return; /* no-op */
}
/*
* Generic ops used on most IA archs/platforms. Set with msi_register()
*/
struct msi_ops msi_apic_ops = {
.setup = msi_setup_apic,
.teardown = msi_teardown_apic,
.target = msi_target_apic,
};

283
drivers/pci/msi.c
View File

@ -23,8 +23,6 @@
#include "pci.h"
#include "msi.h"
#define MSI_TARGET_CPU first_cpu(cpu_online_map)
static DEFINE_SPINLOCK(msi_lock);
static struct msi_desc* msi_desc[NR_IRQS] = { [0 ... NR_IRQS-1] = NULL };
static kmem_cache_t* msi_cachep;
@ -37,9 +35,17 @@ static int nr_msix_devices;
#ifndef CONFIG_X86_IO_APIC
int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
#endif
static struct msi_ops *msi_ops;
int
msi_register(struct msi_ops *ops)
{
msi_ops = ops;
return 0;
}
static void msi_cache_ctor(void *p, kmem_cache_t *cache, unsigned long flags)
{
memset(p, 0, NR_IRQS * sizeof(struct msi_desc));
@ -92,7 +98,7 @@ static void msi_set_mask_bit(unsigned int vector, int flag)
static void set_msi_affinity(unsigned int vector, cpumask_t cpu_mask)
{
struct msi_desc *entry;
struct msg_address address;
u32 address_hi, address_lo;
unsigned int irq = vector;
unsigned int dest_cpu = first_cpu(cpu_mask);
@ -108,28 +114,36 @@ static void set_msi_affinity(unsigned int vector, cpumask_t cpu_mask)
if (!pos)
return;
pci_read_config_dword(entry->dev, msi_upper_address_reg(pos),
&address_hi);
pci_read_config_dword(entry->dev, msi_lower_address_reg(pos),
&address.lo_address.value);
address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
address.lo_address.value |= (cpu_physical_id(dest_cpu) <<
MSI_TARGET_CPU_SHIFT);
entry->msi_attrib.current_cpu = cpu_physical_id(dest_cpu);
&address_lo);
msi_ops->target(vector, dest_cpu, &address_hi, &address_lo);
pci_write_config_dword(entry->dev, msi_upper_address_reg(pos),
address_hi);
pci_write_config_dword(entry->dev, msi_lower_address_reg(pos),
address.lo_address.value);
address_lo);
set_native_irq_info(irq, cpu_mask);
break;
}
case PCI_CAP_ID_MSIX:
{
int offset = entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET;
int offset_hi =
entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET;
int offset_lo =
entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET;
address.lo_address.value = readl(entry->mask_base + offset);
address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
address.lo_address.value |= (cpu_physical_id(dest_cpu) <<
MSI_TARGET_CPU_SHIFT);
entry->msi_attrib.current_cpu = cpu_physical_id(dest_cpu);
writel(address.lo_address.value, entry->mask_base + offset);
address_hi = readl(entry->mask_base + offset_hi);
address_lo = readl(entry->mask_base + offset_lo);
msi_ops->target(vector, dest_cpu, &address_hi, &address_lo);
writel(address_hi, entry->mask_base + offset_hi);
writel(address_lo, entry->mask_base + offset_lo);
set_native_irq_info(irq, cpu_mask);
break;
}
@ -251,30 +265,6 @@ static struct hw_interrupt_type msi_irq_wo_maskbit_type = {
.set_affinity = set_msi_affinity
};
static void msi_data_init(struct msg_data *msi_data,
unsigned int vector)
{
memset(msi_data, 0, sizeof(struct msg_data));
msi_data->vector = (u8)vector;
msi_data->delivery_mode = MSI_DELIVERY_MODE;
msi_data->level = MSI_LEVEL_MODE;
msi_data->trigger = MSI_TRIGGER_MODE;
}
static void msi_address_init(struct msg_address *msi_address)
{
unsigned int dest_id;
unsigned long dest_phys_id = cpu_physical_id(MSI_TARGET_CPU);
memset(msi_address, 0, sizeof(struct msg_address));
msi_address->hi_address = (u32)0;
dest_id = (MSI_ADDRESS_HEADER << MSI_ADDRESS_HEADER_SHIFT);
msi_address->lo_address.u.dest_mode = MSI_PHYSICAL_MODE;
msi_address->lo_address.u.redirection_hint = MSI_REDIRECTION_HINT_MODE;
msi_address->lo_address.u.dest_id = dest_id;
msi_address->lo_address.value |= (dest_phys_id << MSI_TARGET_CPU_SHIFT);
}
static int msi_free_vector(struct pci_dev* dev, int vector, int reassign);
static int assign_msi_vector(void)
{
@ -369,13 +359,29 @@ static int msi_init(void)
return status;
}
status = msi_arch_init();
if (status < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING
"PCI: MSI arch init failed. MSI disabled.\n");
return status;
}
if (! msi_ops) {
printk(KERN_WARNING
"PCI: MSI ops not registered. MSI disabled.\n");
status = -EINVAL;
return status;
}
last_alloc_vector = assign_irq_vector(AUTO_ASSIGN);
status = msi_cache_init();
if (status < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING "PCI: MSI cache init failed\n");
return status;
}
last_alloc_vector = assign_irq_vector(AUTO_ASSIGN);
if (last_alloc_vector < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");
@ -442,9 +448,11 @@ static void enable_msi_mode(struct pci_dev *dev, int pos, int type)
/* Set enabled bits to single MSI & enable MSI_enable bit */
msi_enable(control, 1);
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msi_enabled = 1;
} else {
msix_enable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msix_enabled = 1;
}
if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
/* PCI Express Endpoint device detected */
@ -461,9 +469,11 @@ void disable_msi_mode(struct pci_dev *dev, int pos, int type)
/* Set enabled bits to single MSI & enable MSI_enable bit */
msi_disable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msi_enabled = 0;
} else {
msix_disable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msix_enabled = 0;
}
if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
/* PCI Express Endpoint device detected */
@ -538,7 +548,6 @@ int pci_save_msi_state(struct pci_dev *dev)
pci_read_config_dword(dev, pos + PCI_MSI_DATA_32, &cap[i++]);
if (control & PCI_MSI_FLAGS_MASKBIT)
pci_read_config_dword(dev, pos + PCI_MSI_MASK_BIT, &cap[i++]);
disable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
save_state->cap_nr = PCI_CAP_ID_MSI;
pci_add_saved_cap(dev, save_state);
return 0;
@ -575,6 +584,8 @@ void pci_restore_msi_state(struct pci_dev *dev)
int pci_save_msix_state(struct pci_dev *dev)
{
int pos;
int temp;
int vector, head, tail = 0;
u16 control;
struct pci_cap_saved_state *save_state;
@ -582,6 +593,7 @@ int pci_save_msix_state(struct pci_dev *dev)
if (pos <= 0 || dev->no_msi)
return 0;
/* save the capability */
pci_read_config_word(dev, msi_control_reg(pos), &control);
if (!(control & PCI_MSIX_FLAGS_ENABLE))
return 0;
@ -593,7 +605,38 @@ int pci_save_msix_state(struct pci_dev *dev)
}
*((u16 *)&save_state->data[0]) = control;
disable_msi_mode(dev, pos, PCI_CAP_ID_MSIX);
/* save the table */
temp = dev->irq;
if (msi_lookup_vector(dev, PCI_CAP_ID_MSIX)) {
kfree(save_state);
return -EINVAL;
}
vector = head = dev->irq;
while (head != tail) {
int j;
void __iomem *base;
struct msi_desc *entry;
entry = msi_desc[vector];
base = entry->mask_base;
j = entry->msi_attrib.entry_nr;
entry->address_lo_save =
readl(base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
entry->address_hi_save =
readl(base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
entry->data_save =
readl(base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_DATA_OFFSET);
tail = msi_desc[vector]->link.tail;
vector = tail;
}
dev->irq = temp;
save_state->cap_nr = PCI_CAP_ID_MSIX;
pci_add_saved_cap(dev, save_state);
return 0;
@ -606,8 +649,6 @@ void pci_restore_msix_state(struct pci_dev *dev)
int vector, head, tail = 0;
void __iomem *base;
int j;
struct msg_address address;
struct msg_data data;
struct msi_desc *entry;
int temp;
struct pci_cap_saved_state *save_state;
@ -633,20 +674,13 @@ void pci_restore_msix_state(struct pci_dev *dev)
base = entry->mask_base;
j = entry->msi_attrib.entry_nr;
msi_address_init(&address);
msi_data_init(&data, vector);
address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
address.lo_address.value |= entry->msi_attrib.current_cpu <<
MSI_TARGET_CPU_SHIFT;
writel(address.lo_address.value,
writel(entry->address_lo_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
writel(address.hi_address,
writel(entry->address_hi_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
writel(*(u32*)&data,
writel(entry->data_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_DATA_OFFSET);
@ -660,30 +694,32 @@ void pci_restore_msix_state(struct pci_dev *dev)
}
#endif
static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
static int msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
{
struct msg_address address;
struct msg_data data;
int status;
u32 address_hi;
u32 address_lo;
u32 data;
int pos, vector = dev->irq;
u16 control;
pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
pci_read_config_word(dev, msi_control_reg(pos), &control);
/* Configure MSI capability structure */
msi_address_init(&address);
msi_data_init(&data, vector);
entry->msi_attrib.current_cpu = ((address.lo_address.u.dest_id >>
MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
pci_write_config_dword(dev, msi_lower_address_reg(pos),
address.lo_address.value);
status = msi_ops->setup(dev, vector, &address_hi, &address_lo, &data);
if (status < 0)
return status;
pci_write_config_dword(dev, msi_lower_address_reg(pos), address_lo);
if (is_64bit_address(control)) {
pci_write_config_dword(dev,
msi_upper_address_reg(pos), address.hi_address);
msi_upper_address_reg(pos), address_hi);
pci_write_config_word(dev,
msi_data_reg(pos, 1), *((u32*)&data));
msi_data_reg(pos, 1), data);
} else
pci_write_config_word(dev,
msi_data_reg(pos, 0), *((u32*)&data));
msi_data_reg(pos, 0), data);
if (entry->msi_attrib.maskbit) {
unsigned int maskbits, temp;
/* All MSIs are unmasked by default, Mask them all */
@ -697,6 +733,8 @@ static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
msi_mask_bits_reg(pos, is_64bit_address(control)),
maskbits);
}
return 0;
}
/**
@ -710,6 +748,7 @@ static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
**/
static int msi_capability_init(struct pci_dev *dev)
{
int status;
struct msi_desc *entry;
int pos, vector;
u16 control;
@ -742,7 +781,12 @@ static int msi_capability_init(struct pci_dev *dev)
/* Replace with MSI handler */
irq_handler_init(PCI_CAP_ID_MSI, vector, entry->msi_attrib.maskbit);
/* Configure MSI capability structure */
msi_register_init(dev, entry);
status = msi_register_init(dev, entry);
if (status != 0) {
dev->irq = entry->msi_attrib.default_vector;
kmem_cache_free(msi_cachep, entry);
return status;
}
attach_msi_entry(entry, vector);
/* Set MSI enabled bits */
@ -765,8 +809,10 @@ static int msix_capability_init(struct pci_dev *dev,
struct msix_entry *entries, int nvec)
{
struct msi_desc *head = NULL, *tail = NULL, *entry = NULL;
struct msg_address address;
struct msg_data data;
u32 address_hi;
u32 address_lo;
u32 data;
int status;
int vector, pos, i, j, nr_entries, temp = 0;
unsigned long phys_addr;
u32 table_offset;
@ -822,18 +868,20 @@ static int msix_capability_init(struct pci_dev *dev,
/* Replace with MSI-X handler */
irq_handler_init(PCI_CAP_ID_MSIX, vector, 1);
/* Configure MSI-X capability structure */
msi_address_init(&address);
msi_data_init(&data, vector);
entry->msi_attrib.current_cpu =
((address.lo_address.u.dest_id >>
MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
writel(address.lo_address.value,
status = msi_ops->setup(dev, vector,
&address_hi,
&address_lo,
&data);
if (status < 0)
break;
writel(address_lo,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
writel(address.hi_address,
writel(address_hi,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
writel(*(u32*)&data,
writel(data,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_DATA_OFFSET);
attach_msi_entry(entry, vector);
@ -865,6 +913,7 @@ static int msix_capability_init(struct pci_dev *dev,
**/
int pci_enable_msi(struct pci_dev* dev)
{
struct pci_bus *bus;
int pos, temp, status = -EINVAL;
u16 control;
@ -874,8 +923,9 @@ int pci_enable_msi(struct pci_dev* dev)
if (dev->no_msi)
return status;
if (dev->bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
return -EINVAL;
for (bus = dev->bus; bus; bus = bus->parent)
if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
return -EINVAL;
temp = dev->irq;
@ -887,23 +937,23 @@ int pci_enable_msi(struct pci_dev* dev)
if (!pos)
return -EINVAL;
pci_read_config_word(dev, msi_control_reg(pos), &control);
if (control & PCI_MSI_FLAGS_ENABLE)
return 0; /* Already in MSI mode */
if (!msi_lookup_vector(dev, PCI_CAP_ID_MSI)) {
/* Lookup Sucess */
unsigned long flags;
pci_read_config_word(dev, msi_control_reg(pos), &control);
if (control & PCI_MSI_FLAGS_ENABLE)
return 0; /* Already in MSI mode */
spin_lock_irqsave(&msi_lock, flags);
if (!vector_irq[dev->irq]) {
msi_desc[dev->irq]->msi_attrib.state = 0;
vector_irq[dev->irq] = -1;
nr_released_vectors--;
spin_unlock_irqrestore(&msi_lock, flags);
msi_register_init(dev, msi_desc[dev->irq]);
enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
return 0;
status = msi_register_init(dev, msi_desc[dev->irq]);
if (status == 0)
enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
return status;
}
spin_unlock_irqrestore(&msi_lock, flags);
dev->irq = temp;
@ -980,6 +1030,8 @@ static int msi_free_vector(struct pci_dev* dev, int vector, int reassign)
void __iomem *base;
unsigned long flags;
msi_ops->teardown(vector);
spin_lock_irqsave(&msi_lock, flags);
entry = msi_desc[vector];
if (!entry || entry->dev != dev) {
@ -1008,33 +1060,8 @@ static int msi_free_vector(struct pci_dev* dev, int vector, int reassign)
entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
if (head == vector) {
/*
* Detect last MSI-X vector to be released.
* Release the MSI-X memory-mapped table.
*/
#if 0
int pos, nr_entries;
unsigned long phys_addr;
u32 table_offset;
u16 control;
u8 bir;
pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
pci_read_config_word(dev, msi_control_reg(pos),
&control);
nr_entries = multi_msix_capable(control);
pci_read_config_dword(dev, msix_table_offset_reg(pos),
&table_offset);
bir = (u8)(table_offset & PCI_MSIX_FLAGS_BIRMASK);
table_offset &= ~PCI_MSIX_FLAGS_BIRMASK;
phys_addr = pci_resource_start(dev, bir) + table_offset;
/*
* FIXME! and what did you want to do with phys_addr?
*/
#endif
if (head == vector)
iounmap(base);
}
}
return 0;
@ -1108,6 +1135,7 @@ static int reroute_msix_table(int head, struct msix_entry *entries, int *nvec)
**/
int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec)
{
struct pci_bus *bus;
int status, pos, nr_entries, free_vectors;
int i, j, temp;
u16 control;
@ -1116,6 +1144,13 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec)
if (!pci_msi_enable || !dev || !entries)
return -EINVAL;
if (dev->no_msi)
return -EINVAL;
for (bus = dev->bus; bus; bus = bus->parent)
if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
return -EINVAL;
status = msi_init();
if (status < 0)
return status;
@ -1300,24 +1335,6 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev)
}
msi_free_vector(dev, vector, 0);
if (warning) {
/* Force to release the MSI-X memory-mapped table */
#if 0
unsigned long phys_addr;
u32 table_offset;
u16 control;
u8 bir;
pci_read_config_word(dev, msi_control_reg(pos),
&control);
pci_read_config_dword(dev, msix_table_offset_reg(pos),
&table_offset);
bir = (u8)(table_offset & PCI_MSIX_FLAGS_BIRMASK);
table_offset &= ~PCI_MSIX_FLAGS_BIRMASK;
phys_addr = pci_resource_start(dev, bir) + table_offset;
/*
* FIXME! and what did you want to do with phys_addr?
*/
#endif
iounmap(base);
printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() "
"called without free_irq() on all MSI-X vectors\n",

133
drivers/pci/msi.h
View File

@ -6,6 +6,68 @@
#ifndef MSI_H
#define MSI_H
/*
* MSI operation vector. Used by the msi core code (drivers/pci/msi.c)
* to abstract platform-specific tasks relating to MSI address generation
* and resource management.
*/
struct msi_ops {
/**
* setup - generate an MSI bus address and data for a given vector
* @pdev: PCI device context (in)
* @vector: vector allocated by the msi core (in)
* @addr_hi: upper 32 bits of PCI bus MSI address (out)
* @addr_lo: lower 32 bits of PCI bus MSI address (out)
* @data: MSI data payload (out)
*
* Description: The setup op is used to generate a PCI bus addres and
* data which the msi core will program into the card MSI capability
* registers. The setup routine is responsible for picking an initial
* cpu to target the MSI at. The setup routine is responsible for
* examining pdev to determine the MSI capabilities of the card and
* generating a suitable address/data. The setup routine is
* responsible for allocating and tracking any system resources it
* needs to route the MSI to the cpu it picks, and for associating
* those resources with the passed in vector.
*
* Returns 0 if the MSI address/data was successfully setup.
**/
int (*setup) (struct pci_dev *pdev, unsigned int vector,
u32 *addr_hi, u32 *addr_lo, u32 *data);
/**
* teardown - release resources allocated by setup
* @vector: vector context for resources (in)
*
* Description: The teardown op is used to release any resources
* that were allocated in the setup routine associated with the passed
* in vector.
**/
void (*teardown) (unsigned int vector);
/**
* target - retarget an MSI at a different cpu
* @vector: vector context for resources (in)
* @cpu: new cpu to direct vector at (in)
* @addr_hi: new value of PCI bus upper 32 bits (in/out)
* @addr_lo: new value of PCI bus lower 32 bits (in/out)
*
* Description: The target op is used to redirect an MSI vector
* at a different cpu. addr_hi/addr_lo coming in are the existing
* values that the MSI core has programmed into the card. The
* target code is responsible for freeing any resources (if any)
* associated with the old address, and generating a new PCI bus
* addr_hi/addr_lo that will redirect the vector at the indicated cpu.
**/
void (*target) (unsigned int vector, unsigned int cpu,
u32 *addr_hi, u32 *addr_lo);
};
extern int msi_register(struct msi_ops *ops);
#include <asm/msi.h>
/*
@ -63,67 +125,6 @@ extern int pci_vector_resources(int last, int nr_released);
#define msix_mask(address) (address | PCI_MSIX_FLAGS_BITMASK)
#define msix_is_pending(address) (address & PCI_MSIX_FLAGS_PENDMASK)
/*
* MSI Defined Data Structures
*/
#define MSI_ADDRESS_HEADER 0xfee
#define MSI_ADDRESS_HEADER_SHIFT 12
#define MSI_ADDRESS_HEADER_MASK 0xfff000
#define MSI_ADDRESS_DEST_ID_MASK 0xfff0000f
#define MSI_TARGET_CPU_MASK 0xff
#define MSI_DELIVERY_MODE 0
#define MSI_LEVEL_MODE 1 /* Edge always assert */
#define MSI_TRIGGER_MODE 0 /* MSI is edge sensitive */
#define MSI_PHYSICAL_MODE 0
#define MSI_LOGICAL_MODE 1
#define MSI_REDIRECTION_HINT_MODE 0
struct msg_data {
#if defined(__LITTLE_ENDIAN_BITFIELD)
__u32 vector : 8;
__u32 delivery_mode : 3; /* 000b: FIXED | 001b: lowest prior */
__u32 reserved_1 : 3;
__u32 level : 1; /* 0: deassert | 1: assert */
__u32 trigger : 1; /* 0: edge | 1: level */
__u32 reserved_2 : 16;
#elif defined(__BIG_ENDIAN_BITFIELD)
__u32 reserved_2 : 16;
__u32 trigger : 1; /* 0: edge | 1: level */
__u32 level : 1; /* 0: deassert | 1: assert */
__u32 reserved_1 : 3;
__u32 delivery_mode : 3; /* 000b: FIXED | 001b: lowest prior */
__u32 vector : 8;
#else
#error "Bitfield endianness not defined! Check your byteorder.h"
#endif
} __attribute__ ((packed));
struct msg_address {
union {
struct {
#if defined(__LITTLE_ENDIAN_BITFIELD)
__u32 reserved_1 : 2;
__u32 dest_mode : 1; /*0:physic | 1:logic */
__u32 redirection_hint: 1; /*0: dedicated CPU
1: lowest priority */
__u32 reserved_2 : 4;
__u32 dest_id : 24; /* Destination ID */
#elif defined(__BIG_ENDIAN_BITFIELD)
__u32 dest_id : 24; /* Destination ID */
__u32 reserved_2 : 4;
__u32 redirection_hint: 1; /*0: dedicated CPU
1: lowest priority */
__u32 dest_mode : 1; /*0:physic | 1:logic */
__u32 reserved_1 : 2;
#else
#error "Bitfield endianness not defined! Check your byteorder.h"
#endif
}u;
__u32 value;
}lo_address;
__u32 hi_address;
} __attribute__ ((packed));
struct msi_desc {
struct {
__u8 type : 5; /* {0: unused, 5h:MSI, 11h:MSI-X} */
@ -132,7 +133,7 @@ struct msi_desc {
__u8 reserved: 1; /* reserved */
__u8 entry_nr; /* specific enabled entry */
__u8 default_vector; /* default pre-assigned vector */
__u8 current_cpu; /* current destination cpu */
__u8 unused; /* formerly unused destination cpu*/
}msi_attrib;
struct {
@ -142,6 +143,14 @@ struct msi_desc {
void __iomem *mask_base;
struct pci_dev *dev;
#ifdef CONFIG_PM
/* PM save area for MSIX address/data */
u32 address_hi_save;
u32 address_lo_save;
u32 data_save;
#endif
};
#endif /* MSI_H */

16
drivers/pci/pci-acpi.c
View File

@ -267,7 +267,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
/* ACPI bus type */
static int pci_acpi_find_device(struct device *dev, acpi_handle *handle)
static int acpi_pci_find_device(struct device *dev, acpi_handle *handle)
{
struct pci_dev * pci_dev;
acpi_integer addr;
@ -281,7 +281,7 @@ static int pci_acpi_find_device(struct device *dev, acpi_handle *handle)
return 0;
}
static int pci_acpi_find_root_bridge(struct device *dev, acpi_handle *handle)
static int acpi_pci_find_root_bridge(struct device *dev, acpi_handle *handle)
{
int num;
unsigned int seg, bus;
@ -299,21 +299,21 @@ static int pci_acpi_find_root_bridge(struct device *dev, acpi_handle *handle)
return 0;
}
static struct acpi_bus_type pci_acpi_bus = {
static struct acpi_bus_type acpi_pci_bus = {
.bus = &pci_bus_type,
.find_device = pci_acpi_find_device,
.find_bridge = pci_acpi_find_root_bridge,
.find_device = acpi_pci_find_device,
.find_bridge = acpi_pci_find_root_bridge,
};
static int __init pci_acpi_init(void)
static int __init acpi_pci_init(void)
{
int ret;
ret = register_acpi_bus_type(&pci_acpi_bus);
ret = register_acpi_bus_type(&acpi_pci_bus);
if (ret)
return 0;
platform_pci_choose_state = acpi_pci_choose_state;
platform_pci_set_power_state = acpi_pci_set_power_state;
return 0;
}
arch_initcall(pci_acpi_init);
arch_initcall(acpi_pci_init);

45
drivers/pci/pci-sysfs.c
View File

@ -43,6 +43,29 @@ pci_config_attr(subsystem_vendor, "0x%04x\n");
pci_config_attr(subsystem_device, "0x%04x\n");
pci_config_attr(class, "0x%06x\n");
pci_config_attr(irq, "%u\n");
pci_config_attr(is_enabled, "%u\n");
static ssize_t broken_parity_status_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
return sprintf (buf, "%u\n", pdev->broken_parity_status);
}
static ssize_t broken_parity_status_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
ssize_t consumed = -EINVAL;
if ((count > 0) && (*buf == '0' || *buf == '1')) {
pdev->broken_parity_status = *buf == '1' ? 1 : 0;
consumed = count;
}
return consumed;
}
static ssize_t local_cpus_show(struct device *dev,
struct device_attribute *attr, char *buf)
@ -90,6 +113,25 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
(u8)(pci_dev->class));
}
static ssize_t
is_enabled_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
/* this can crash the machine when done on the "wrong" device */
if (!capable(CAP_SYS_ADMIN))
return count;
if (*buf == '0')
pci_disable_device(pdev);
if (*buf == '1')
pci_enable_device(pdev);
return count;
}
struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(resource),
@ -101,6 +143,9 @@ struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(irq),
__ATTR_RO(local_cpus),
__ATTR_RO(modalias),
__ATTR(enable, 0600, is_enabled_show, is_enabled_store),
__ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
broken_parity_status_show,broken_parity_status_store),
__ATTR_NULL,
};

16
drivers/pci/pci.c
View File

@ -517,7 +517,12 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
int
pci_enable_device(struct pci_dev *dev)
{
int err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
int err;
if (dev->is_enabled)
return 0;
err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
if (err)
return err;
pci_fixup_device(pci_fixup_enable, dev);
@ -546,7 +551,14 @@ void
pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
if (dev->msi_enabled)
disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
PCI_CAP_ID_MSI);
if (dev->msix_enabled)
disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
PCI_CAP_ID_MSIX);
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;

2
drivers/pci/pci.h
View File

@ -40,7 +40,7 @@ extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int
extern void pci_remove_legacy_files(struct pci_bus *bus);
/* Lock for read/write access to pci device and bus lists */
extern spinlock_t pci_bus_lock;
extern struct rw_semaphore pci_bus_sem;
#ifdef CONFIG_X86_IO_APIC
extern int pci_msi_quirk;

45
drivers/pci/probe.c
View File

@ -180,25 +180,31 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
res->flags |= pci_calc_resource_flags(l);
if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK))
== (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) {
pci_read_config_dword(dev, reg+4, &l);
u32 szhi, lhi;
pci_read_config_dword(dev, reg+4, &lhi);
pci_write_config_dword(dev, reg+4, ~0);
pci_read_config_dword(dev, reg+4, &szhi);
pci_write_config_dword(dev, reg+4, lhi);
szhi = pci_size(lhi, szhi, 0xffffffff);
next++;
#if BITS_PER_LONG == 64
res->start |= ((unsigned long) l) << 32;
res->start |= ((unsigned long) lhi) << 32;
res->end = res->start + sz;
pci_write_config_dword(dev, reg+4, ~0);
pci_read_config_dword(dev, reg+4, &sz);
pci_write_config_dword(dev, reg+4, l);
sz = pci_size(l, sz, 0xffffffff);
if (sz) {
if (szhi) {
/* This BAR needs > 4GB? Wow. */
res->end |= (unsigned long)sz<<32;
res->end |= (unsigned long)szhi<<32;
}
#else
if (l) {
printk(KERN_ERR "PCI: Unable to handle 64-bit address for device %s\n", pci_name(dev));
if (szhi) {
printk(KERN_ERR "PCI: Unable to handle 64-bit BAR for device %s\n", pci_name(dev));
res->start = 0;
res->flags = 0;
continue;
} else if (lhi) {
/* 64-bit wide address, treat as disabled */
pci_write_config_dword(dev, reg, l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK);
pci_write_config_dword(dev, reg+4, 0);
res->start = 0;
res->end = sz;
}
#endif
}
@ -377,9 +383,9 @@ struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_de
child = pci_alloc_child_bus(parent, dev, busnr);
if (child) {
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_add_tail(&child->node, &parent->children);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
}
return child;
}
@ -838,9 +844,9 @@ void __devinit pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
* and the bus list for fixup functions, etc.
*/
INIT_LIST_HEAD(&dev->global_list);
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_add_tail(&dev->bus_list, &bus->devices);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
}
struct pci_dev * __devinit
@ -975,9 +981,10 @@ struct pci_bus * __devinit pci_create_bus(struct device *parent,
pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
goto err_out;
}
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_add_tail(&b->node, &pci_root_buses);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
memset(dev, 0, sizeof(*dev));
dev->parent = parent;
@ -1017,9 +1024,9 @@ struct pci_bus * __devinit pci_create_bus(struct device *parent,
class_dev_reg_err:
device_unregister(dev);
dev_reg_err:
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_del(&b->node);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
err_out:
kfree(dev);
kfree(b);

47
drivers/pci/quirks.c
View File

@ -24,6 +24,17 @@
#include <linux/acpi.h>
#include "pci.h"
/* The Mellanox Tavor device gives false positive parity errors
* Mark this device with a broken_parity_status, to allow
* PCI scanning code to "skip" this now blacklisted device.
*/
static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
{
dev->broken_parity_status = 1; /* This device gives false positives */
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
/* Deal with broken BIOS'es that neglect to enable passive release,
which can cause problems in combination with the 82441FX/PPro MTRRs */
static void __devinit quirk_passive_release(struct pci_dev *dev)
@ -878,27 +889,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e
* when a PCI-Soundcard is added. The BIOS only gives Options
* "Disabled" and "AUTO". This Quirk Sets the corresponding
* Register-Value to enable the Soundcard.
*
* FIXME: Presently this quirk will run on anything that has an 8237
* which isn't correct, we need to check DMI tables or something in
* order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
* runs everywhere at present we suppress the printk output in most
* irrelevant cases.
*/
static void __init k8t_sound_hostbridge(struct pci_dev *dev)
{
unsigned char val;
printk(KERN_INFO "PCI: Quirk-MSI-K8T Soundcard On\n");
pci_read_config_byte(dev, 0x50, &val);
if (val == 0x88 || val == 0xc8) {
/* Assume it's probably a MSI-K8T-Neo2Fir */
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
pci_write_config_byte(dev, 0x50, val & (~0x40));
/* Verify the Change for Status output */
pci_read_config_byte(dev, 0x50, &val);
if (val & 0x40)
printk(KERN_INFO "PCI: MSI-K8T soundcard still off\n");
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
else
printk(KERN_INFO "PCI: MSI-K8T soundcard on\n");
} else {
printk(KERN_INFO "PCI: Unexpected Value in PCI-Register: "
"no Change!\n");
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
@ -1485,6 +1499,25 @@ static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
/* Under some circumstances, AER is not linked with extended capabilities.
* Force it to be linked by setting the corresponding control bit in the
* config space.
*/
static void __devinit quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
{
uint8_t b;
if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
if (!(b & 0x20)) {
pci_write_config_byte(dev, 0xf41, b | 0x20);
printk(KERN_INFO
"PCI: Linking AER extended capability on %s\n",
pci_name(dev));
}
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_pcie_aer_ext_cap);
EXPORT_SYMBOL(pcie_mch_quirk);
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pci_fixup_device);

12
drivers/pci/remove.c
View File

@ -22,18 +22,18 @@ static void pci_destroy_dev(struct pci_dev *dev)
pci_proc_detach_device(dev);
pci_remove_sysfs_dev_files(dev);
device_unregister(&dev->dev);
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_del(&dev->global_list);
dev->global_list.next = dev->global_list.prev = NULL;
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
}
/* Remove the device from the device lists, and prevent any further
* list accesses from this device */
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_del(&dev->bus_list);
dev->bus_list.next = dev->bus_list.prev = NULL;
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
pci_free_resources(dev);
pci_dev_put(dev);
@ -62,9 +62,9 @@ void pci_remove_bus(struct pci_bus *pci_bus)
{
pci_proc_detach_bus(pci_bus);
spin_lock(&pci_bus_lock);
down_write(&pci_bus_sem);
list_del(&pci_bus->node);
spin_unlock(&pci_bus_lock);
up_write(&pci_bus_sem);
pci_remove_legacy_files(pci_bus);
class_device_remove_file(&pci_bus->class_dev,
&class_device_attr_cpuaffinity);

32
drivers/pci/search.c
View File

@ -13,7 +13,7 @@
#include <linux/interrupt.h>
#include "pci.h"
DEFINE_SPINLOCK(pci_bus_lock);
DECLARE_RWSEM(pci_bus_sem);
static struct pci_bus * __devinit
pci_do_find_bus(struct pci_bus* bus, unsigned char busnr)
@ -72,11 +72,11 @@ pci_find_next_bus(const struct pci_bus *from)
struct pci_bus *b = NULL;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
n = from ? from->node.next : pci_root_buses.next;
if (n != &pci_root_buses)
b = pci_bus_b(n);
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
return b;
}
@ -124,7 +124,7 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
struct pci_dev *dev;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
list_for_each(tmp, &bus->devices) {
dev = pci_dev_b(tmp);
@ -135,7 +135,7 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
dev = NULL;
out:
pci_dev_get(dev);
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
return dev;
}
@ -167,7 +167,7 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
struct pci_dev *dev;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@ -181,7 +181,7 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
}
dev = NULL;
exit:
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
return dev;
}
@ -232,7 +232,7 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
struct pci_dev *dev;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@ -247,7 +247,7 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
dev = NULL;
exit:
dev = pci_dev_get(dev);
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
pci_dev_put(from);
return dev;
}
@ -292,7 +292,7 @@ pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct p
struct pci_dev *dev;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
n = from ? from->global_list.prev : pci_devices.prev;
while (n && (n != &pci_devices)) {
@ -304,7 +304,7 @@ pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct p
}
dev = NULL;
exit:
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
return dev;
}
@ -328,7 +328,7 @@ struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
struct pci_dev *dev;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@ -340,7 +340,7 @@ struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
dev = NULL;
exit:
dev = pci_dev_get(dev);
spin_unlock(&pci_bus_lock);
up_read(&pci_bus_sem);
pci_dev_put(from);
return dev;
}
@ -362,7 +362,7 @@ int pci_dev_present(const struct pci_device_id *ids)
int found = 0;
WARN_ON(in_interrupt());
spin_lock(&pci_bus_lock);
down_read(&pci_bus_sem);
while (ids->vendor || ids->subvendor || ids->class_mask) {
list_for_each_entry(dev, &pci_devices, global_list) {
if (pci_match_one_device(ids, dev)) {
@ -372,8 +372,8 @@ int pci_dev_present(const struct pci_device_id *ids)
}
ids++;
}
exit:
spin_unlock(&pci_bus_lock);
exit:
up_read(&pci_bus_sem);
return found;
}
EXPORT_SYMBOL(pci_dev_present);

5
drivers/pci/setup-bus.c
View File

@ -55,9 +55,10 @@ pbus_assign_resources_sorted(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
u16 class = dev->class >> 8;
/* Don't touch classless devices and host bridges. */
/* Don't touch classless devices or host bridges or ioapics. */
if (class == PCI_CLASS_NOT_DEFINED ||
class == PCI_CLASS_BRIDGE_HOST)
class == PCI_CLASS_BRIDGE_HOST ||
class == PCI_CLASS_SYSTEM_PIC)
continue;
pdev_sort_resources(dev, &head);

40
drivers/pci/setup-res.c
View File

@ -155,6 +155,46 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
return ret;
}
#ifdef CONFIG_EMBEDDED
int pci_assign_resource_fixed(struct pci_dev *dev, int resno)
{
struct pci_bus *bus = dev->bus;
struct resource *res = dev->resource + resno;
unsigned int type_mask;
int i, ret = -EBUSY;
type_mask = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH;
for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
struct resource *r = bus->resource[i];
if (!r)
continue;
/* type_mask must match */
if ((res->flags ^ r->flags) & type_mask)
continue;
ret = request_resource(r, res);
if (ret == 0)
break;
}
if (ret) {
printk(KERN_ERR "PCI: Failed to allocate %s resource "
"#%d:%llx@%llx for %s\n",
res->flags & IORESOURCE_IO ? "I/O" : "mem",
resno, (unsigned long long)(res->end - res->start + 1),
(unsigned long long)res->start, pci_name(dev));
} else if (resno < PCI_BRIDGE_RESOURCES) {
pci_update_resource(dev, res, resno);
}
return ret;
}
EXPORT_SYMBOL_GPL(pci_assign_resource_fixed);
#endif
/* Sort resources by alignment */
void __devinit
pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)

24
drivers/scsi/qla1280.c
View File

@ -397,30 +397,6 @@
#include "ql1280_fw.h"
#include "ql1040_fw.h"
/*
* Missing PCI ID's
*/
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1080
#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1240
#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1280
#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP10160
#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP12160
#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
#endif
#ifndef PCI_VENDOR_ID_AMI
#define PCI_VENDOR_ID_AMI 0x101e
#endif
#ifndef BITS_PER_LONG
#error "BITS_PER_LONG not defined!"
#endif

11
drivers/scsi/sata_vsc.c
View File

@ -433,13 +433,14 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
/*
* 0x1725/0x7174 is the Vitesse VSC-7174
* 0x8086/0x3200 is the Intel 31244, which is supposed to be identical
* compatibility is untested as of yet
* Intel 31244 is supposed to be identical.
* Compatibility is untested as of yet.
*/
static const struct pci_device_id vsc_sata_pci_tbl[] = {
{ 0x1725, 0x7174, PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
{ 0x8086, 0x3200, PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
{ PCI_VENDOR_ID_VITESSE, PCI_DEVICE_ID_VITESSE_VSC7174,
PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GD31244,
PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
{ }
};

10
include/asm-i386/msi.h
View File

@ -9,7 +9,15 @@
#include <asm/desc.h>
#include <mach_apic.h>
#define LAST_DEVICE_VECTOR 232
#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1)
#define MSI_TARGET_CPU_SHIFT 12
extern struct msi_ops msi_apic_ops;
static inline int msi_arch_init(void)
{
msi_register(&msi_apic_ops);
return 0;
}
#endif /* ASM_MSI_H */

15
include/asm-ia64/hw_irq.h
View File

@ -47,9 +47,19 @@ typedef u8 ia64_vector;
#define IA64_CMC_VECTOR 0x1f /* corrected machine-check interrupt vector */
/*
* Vectors 0x20-0x2f are reserved for legacy ISA IRQs.
* Use vectors 0x30-0xe7 as the default device vector range for ia64.
* Platforms may choose to reduce this range in platform_irq_setup, but the
* platform range must fall within
* [IA64_DEF_FIRST_DEVICE_VECTOR..IA64_DEF_LAST_DEVICE_VECTOR]
*/
#define IA64_FIRST_DEVICE_VECTOR 0x30
#define IA64_LAST_DEVICE_VECTOR 0xe7
extern int ia64_first_device_vector;
extern int ia64_last_device_vector;
#define IA64_DEF_FIRST_DEVICE_VECTOR 0x30
#define IA64_DEF_LAST_DEVICE_VECTOR 0xe7
#define IA64_FIRST_DEVICE_VECTOR ia64_first_device_vector
#define IA64_LAST_DEVICE_VECTOR ia64_last_device_vector
#define IA64_MAX_DEVICE_VECTORS (IA64_DEF_LAST_DEVICE_VECTOR - IA64_DEF_FIRST_DEVICE_VECTOR + 1)
#define IA64_NUM_DEVICE_VECTORS (IA64_LAST_DEVICE_VECTOR - IA64_FIRST_DEVICE_VECTOR + 1)
#define IA64_MCA_RENDEZ_VECTOR 0xe8 /* MCA rendez interrupt */
@ -83,6 +93,7 @@ extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
extern int reserve_irq_vector (int vector);
extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
extern void register_percpu_irq (ia64_vector vec, struct irqaction *action);

7
include/asm-ia64/machvec.h
View File

@ -75,6 +75,7 @@ typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
typedef int ia64_mv_msi_init_t (void);
static inline void
machvec_noop (void)
@ -153,6 +154,7 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
# define platform_readl_relaxed ia64_mv.readl_relaxed
# define platform_readq_relaxed ia64_mv.readq_relaxed
# define platform_migrate ia64_mv.migrate
# define platform_msi_init ia64_mv.msi_init
# endif
/* __attribute__((__aligned__(16))) is required to make size of the
@ -202,6 +204,7 @@ struct ia64_machine_vector {
ia64_mv_readl_relaxed_t *readl_relaxed;
ia64_mv_readq_relaxed_t *readq_relaxed;
ia64_mv_migrate_t *migrate;
ia64_mv_msi_init_t *msi_init;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
@ -247,6 +250,7 @@ struct ia64_machine_vector {
platform_readl_relaxed, \
platform_readq_relaxed, \
platform_migrate, \
platform_msi_init, \
}
extern struct ia64_machine_vector ia64_mv;
@ -400,5 +404,8 @@ extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size
#ifndef platform_migrate
# define platform_migrate machvec_noop_task
#endif
#ifndef platform_msi_init
# define platform_msi_init ((ia64_mv_msi_init_t*)NULL)
#endif
#endif /* _ASM_IA64_MACHVEC_H */

7
include/asm-ia64/machvec_sn2.h
View File

@ -67,6 +67,8 @@ extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device;
extern ia64_mv_dma_mapping_error sn_dma_mapping_error;
extern ia64_mv_dma_supported sn_dma_supported;
extern ia64_mv_migrate_t sn_migrate;
extern ia64_mv_msi_init_t sn_msi_init;
/*
* This stuff has dual use!
@ -117,6 +119,11 @@ extern ia64_mv_migrate_t sn_migrate;
#define platform_dma_mapping_error sn_dma_mapping_error
#define platform_dma_supported sn_dma_supported
#define platform_migrate sn_migrate
#ifdef CONFIG_PCI_MSI
#define platform_msi_init sn_msi_init
#else
#define platform_msi_init ((ia64_mv_msi_init_t*)NULL)
#endif
#include <asm/sn/io.h>

12
include/asm-ia64/msi.h
View File

@ -14,4 +14,16 @@ static inline void set_intr_gate (int nr, void *func) {}
#define ack_APIC_irq ia64_eoi
#define MSI_TARGET_CPU_SHIFT 4
extern struct msi_ops msi_apic_ops;
static inline int msi_arch_init(void)
{
if (platform_msi_init)
return platform_msi_init();
/* default ops for most ia64 platforms */
msi_register(&msi_apic_ops);
return 0;
}
#endif /* ASM_MSI_H */

8
include/asm-ia64/sn/intr.h
View File

@ -10,6 +10,7 @@
#define _ASM_IA64_SN_INTR_H
#include <linux/rcupdate.h>
#include <asm/sn/types.h>
#define SGI_UART_VECTOR 0xe9
@ -40,6 +41,7 @@ struct sn_irq_info {
int irq_cpuid; /* kernel logical cpuid */
int irq_irq; /* the IRQ number */
int irq_int_bit; /* Bridge interrupt pin */
/* <0 means MSI */
u64 irq_xtalkaddr; /* xtalkaddr IRQ is sent to */
int irq_bridge_type;/* pciio asic type (pciio.h) */
void *irq_bridge; /* bridge generating irq */
@ -53,6 +55,12 @@ struct sn_irq_info {
};
extern void sn_send_IPI_phys(int, long, int, int);
extern u64 sn_intr_alloc(nasid_t, int,
struct sn_irq_info *,
int, nasid_t, int);
extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
extern struct list_head **sn_irq_lh;
#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)

5
include/asm-ia64/sn/pcibr_provider.h
View File

@ -55,6 +55,7 @@
#define PCI32_ATE_V (0x1 << 0)
#define PCI32_ATE_CO (0x1 << 1)
#define PCI32_ATE_PREC (0x1 << 2)
#define PCI32_ATE_MSI (0x1 << 2)
#define PCI32_ATE_PREF (0x1 << 3)
#define PCI32_ATE_BAR (0x1 << 4)
#define PCI32_ATE_ADDR_SHFT 12
@ -117,8 +118,8 @@ struct pcibus_info {
extern int pcibr_init_provider(void);
extern void *pcibr_bus_fixup(struct pcibus_bussoft *, struct pci_controller *);
extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t);
extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t);
extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t, int type);
extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t, int type);
extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int);
/*

17
include/asm-ia64/sn/pcibus_provider_defs.h
View File

@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
#define _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
@ -45,13 +45,24 @@ struct pci_controller;
*/
struct sn_pcibus_provider {
dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t);
dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t);
dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t, int flags);
dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t, int flags);
void (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
void * (*bus_fixup)(struct pcibus_bussoft *, struct pci_controller *);
void (*force_interrupt)(struct sn_irq_info *);
void (*target_interrupt)(struct sn_irq_info *);
};
/*
* Flags used by the map interfaces
* bits 3:0 specifies format of passed in address
* bit 4 specifies that address is to be used for MSI
*/
#define SN_DMA_ADDRTYPE(x) ((x) & 0xf)
#define SN_DMA_ADDR_PHYS 1 /* address is an xio address. */
#define SN_DMA_ADDR_XIO 2 /* address is phys memory */
#define SN_DMA_MSI 0x10 /* Bus address is to be used for MSI */
extern struct sn_pcibus_provider *sn_pci_provider[];
#endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */

3
include/asm-ia64/sn/tiocp.h
View File

@ -3,13 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2003-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_TIOCP_H
#define _ASM_IA64_SN_PCI_TIOCP_H
#define TIOCP_HOST_INTR_ADDR 0x003FFFFFFFFFFFFFUL
#define TIOCP_PCI64_CMDTYPE_MEM (0x1ull << 60)
#define TIOCP_PCI64_CMDTYPE_MSI (0x3ull << 60)
/*****************************************************************************

10
include/asm-x86_64/msi.h
View File

@ -10,7 +10,15 @@
#include <asm/mach_apic.h>
#include <asm/smp.h>
#define LAST_DEVICE_VECTOR 232
#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1)
#define MSI_TARGET_CPU_SHIFT 12
extern struct msi_ops msi_apic_ops;
static inline int msi_arch_init(void)
{
msi_register(&msi_apic_ops);
return 0;
}
#endif /* ASM_MSI_H */

4
include/linux/pci.h
View File

@ -162,6 +162,9 @@ struct pci_dev {
unsigned int is_busmaster:1; /* device is busmaster */
unsigned int no_msi:1; /* device may not use msi */
unsigned int block_ucfg_access:1; /* userspace config space access is blocked */
unsigned int broken_parity_status:1; /* Device generates false positive parity */
unsigned int msi_enabled:1;
unsigned int msix_enabled:1;
u32 saved_config_space[16]; /* config space saved at suspend time */
struct hlist_head saved_cap_space;
@ -496,6 +499,7 @@ int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
int pci_assign_resource(struct pci_dev *dev, int i);
int pci_assign_resource_fixed(struct pci_dev *dev, int i);
void pci_restore_bars(struct pci_dev *dev);
/* ROM control related routines */

11
include/linux/pci_ids.h
View File

@ -848,7 +848,12 @@
#define PCI_VENDOR_ID_QLOGIC 0x1077
#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
#define PCI_DEVICE_ID_QLOGIC_ISP1020 0x1020
#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
#define PCI_DEVICE_ID_QLOGIC_ISP2100 0x2100
#define PCI_DEVICE_ID_QLOGIC_ISP2200 0x2200
#define PCI_DEVICE_ID_QLOGIC_ISP2300 0x2300
@ -1018,6 +1023,7 @@
#define PCI_DEVICE_ID_NVIDIA_NVENET_8 0x0056
#define PCI_DEVICE_ID_NVIDIA_NVENET_9 0x0057
#define PCI_DEVICE_ID_NVIDIA_CK804_AUDIO 0x0059
#define PCI_DEVICE_ID_NVIDIA_CK804_PCIE 0x005d
#define PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS 0x0064
#define PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE 0x0065
#define PCI_DEVICE_ID_NVIDIA_NVENET_2 0x0066
@ -1946,6 +1952,7 @@
#define PCI_VENDOR_ID_MELLANOX 0x15b3
#define PCI_DEVICE_ID_MELLANOX_TAVOR 0x5a44
#define PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE 0x5a46
#define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT 0x6278
#define PCI_DEVICE_ID_MELLANOX_ARBEL 0x6282
#define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c
@ -1969,6 +1976,9 @@
#define PCI_VENDOR_ID_NETCELL 0x169c
#define PCI_DEVICE_ID_REVOLUTION 0x0044
#define PCI_VENDOR_ID_VITESSE 0x1725
#define PCI_DEVICE_ID_VITESSE_VSC7174 0x7174
#define PCI_VENDOR_ID_LINKSYS 0x1737
#define PCI_DEVICE_ID_LINKSYS_EG1064 0x1064
@ -2148,6 +2158,7 @@
#define PCI_DEVICE_ID_INTEL_ICH8_4 0x2815
#define PCI_DEVICE_ID_INTEL_ICH8_5 0x283e
#define PCI_DEVICE_ID_INTEL_ICH8_6 0x2850
#define PCI_DEVICE_ID_INTEL_GD31244 0x3200
#define PCI_DEVICE_ID_INTEL_82855PM_HB 0x3340
#define PCI_DEVICE_ID_INTEL_82830_HB 0x3575
#define PCI_DEVICE_ID_INTEL_82830_CGC 0x3577