Release 4.14 arch/ia64/sn/pci/pcibr/pcibr_provider.c
/*
* 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) 2001-2004, 2006 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/export.h>
#include <asm/sn/addrs.h>
#include <asm/sn/geo.h>
#include <asm/sn/pcibr_provider.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/pic.h>
#include <asm/sn/sn2/sn_hwperf.h>
#include "xtalk/xwidgetdev.h"
#include "xtalk/hubdev.h"
int
sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp,
char **ssdt)
{
struct ia64_sal_retval ret_stuff;
u64 busnum;
u64 segment;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = soft->pbi_buscommon.bs_persist_segment;
busnum = soft->pbi_buscommon.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_SLOT_ENABLE, segment,
busnum, (u64) device, (u64) resp, (u64)ia64_tpa(ssdt),
0, 0);
return (int)ret_stuff.v0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Prarit Bhargava | 79 | 75.96% | 2 | 50.00% |
| Mike Habeck | 13 | 12.50% | 1 | 25.00% |
| John Keller | 12 | 11.54% | 1 | 25.00% |
| Total | 104 | 100.00% | 4 | 100.00% |
int
sal_pcibr_slot_disable(struct pcibus_info *soft, int device, int action,
void *resp)
{
struct ia64_sal_retval ret_stuff;
u64 busnum;
u64 segment;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = soft->pbi_buscommon.bs_persist_segment;
busnum = soft->pbi_buscommon.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_SLOT_DISABLE,
segment, busnum, (u64) device, (u64) action,
(u64) resp, 0, 0);
return (int)ret_stuff.v0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Prarit Bhargava | 86 | 86.87% | 2 | 66.67% |
| Mike Habeck | 13 | 13.13% | 1 | 33.33% |
| Total | 99 | 100.00% | 3 | 100.00% |
static int sal_pcibr_error_interrupt(struct pcibus_info *soft)
{
struct ia64_sal_retval ret_stuff;
u64 busnum;
int segment;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = soft->pbi_buscommon.bs_persist_segment;
busnum = soft->pbi_buscommon.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff,
(u64) SN_SAL_IOIF_ERROR_INTERRUPT,
(u64) segment, (u64) busnum, 0, 0, 0, 0, 0);
return (int)ret_stuff.v0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 81 | 93.10% | 1 | 33.33% |
| Colin Ngam | 5 | 5.75% | 1 | 33.33% |
| Prarit Bhargava | 1 | 1.15% | 1 | 33.33% |
| Total | 87 | 100.00% | 3 | 100.00% |
u16 sn_ioboard_to_pci_bus(struct pci_bus *pci_bus)
{
long rc;
u16 uninitialized_var(ioboard); /* GCC be quiet */
nasid_t nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
rc = ia64_sn_sysctl_ioboard_get(nasid, &ioboard);
if (rc) {
printk(KERN_WARNING "ia64_sn_sysctl_ioboard_get failed: %ld\n",
rc);
return 0;
}
return ioboard;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Prarit Bhargava | 58 | 92.06% | 1 | 33.33% |
| Jes Sorensen | 4 | 6.35% | 1 | 33.33% |
| Matthew Wilcox | 1 | 1.59% | 1 | 33.33% |
| Total | 63 | 100.00% | 3 | 100.00% |
/*
* PCI Bridge Error interrupt handler. Gets invoked whenever a PCI
* bridge sends an error interrupt.
*/
static irqreturn_t
pcibr_error_intr_handler(int irq, void *arg)
{
struct pcibus_info *soft = arg;
if (sal_pcibr_error_interrupt(soft) < 0)
panic("pcibr_error_intr_handler(): Fatal Bridge Error");
return IRQ_HANDLED;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 37 | 100.00% | 1 | 100.00% |
| Total | 37 | 100.00% | 1 | 100.00% |
void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
int nasid, cnode, j;
struct hubdev_info *hubdev_info;
struct pcibus_info *soft;
struct sn_flush_device_kernel *sn_flush_device_kernel;
struct sn_flush_device_common *common;
if (! IS_PCI_BRIDGE_ASIC(prom_bussoft->bs_asic_type)) {
return NULL;
}
/*
* Allocate kernel bus soft and copy from prom.
*/
soft = kmemdup(prom_bussoft, sizeof(struct pcibus_info), GFP_KERNEL);
if (!soft) {
return NULL;
}
soft->pbi_buscommon.bs_base = (unsigned long)
ioremap(REGION_OFFSET(soft->pbi_buscommon.bs_base),
sizeof(struct pic));
spin_lock_init(&soft->pbi_lock);
/*
* register the bridge's error interrupt handler
*/
if (request_irq(SGI_PCIASIC_ERROR, pcibr_error_intr_handler,
IRQF_SHARED, "PCIBR error", (void *)(soft))) {
printk(KERN_WARNING
"pcibr cannot allocate interrupt for error handler\n");
}
irq_set_handler(SGI_PCIASIC_ERROR, handle_level_irq);
sn_set_err_irq_affinity(SGI_PCIASIC_ERROR);
/*
* Update the Bridge with the "kernel" pagesize
*/
if (PAGE_SIZE < 16384) {
pcireg_control_bit_clr(soft, PCIBR_CTRL_PAGE_SIZE);
} else {
pcireg_control_bit_set(soft, PCIBR_CTRL_PAGE_SIZE);
}
nasid = NASID_GET(soft->pbi_buscommon.bs_base);
cnode = nasid_to_cnodeid(nasid);
hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
if (hubdev_info->hdi_flush_nasid_list.widget_p) {
sn_flush_device_kernel = hubdev_info->hdi_flush_nasid_list.
widget_p[(int)soft->pbi_buscommon.bs_xid];
if (sn_flush_device_kernel) {
for (j = 0; j < DEV_PER_WIDGET;
j++, sn_flush_device_kernel++) {
common = sn_flush_device_kernel->common;
if (common->sfdl_slot == -1)
continue;
if ((common->sfdl_persistent_segment ==
soft->pbi_buscommon.bs_persist_segment) &&
(common->sfdl_persistent_busnum ==
soft->pbi_buscommon.bs_persist_busnum))
common->sfdl_pcibus_info =
soft;
}
}
}
/* Setup the PMU ATE map */
soft->pbi_int_ate_resource.lowest_free_index = 0;
soft->pbi_int_ate_resource.ate =
kzalloc(soft->pbi_int_ate_size * sizeof(u64), GFP_KERNEL);
if (!soft->pbi_int_ate_resource.ate) {
kfree(soft);
return NULL;
}
return soft;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 290 | 77.75% | 1 | 7.69% |
| Jes Sorensen | 26 | 6.97% | 2 | 15.38% |
| Prarit Bhargava | 21 | 5.63% | 2 | 15.38% |
| Colin Ngam | 13 | 3.49% | 1 | 7.69% |
| Dimitri Sivanich | 7 | 1.88% | 1 | 7.69% |
| Christoph Lameter | 5 | 1.34% | 1 | 7.69% |
| John Keller | 5 | 1.34% | 1 | 7.69% |
| Thomas Meyer | 3 | 0.80% | 1 | 7.69% |
| Jesse Barnes | 1 | 0.27% | 1 | 7.69% |
| Mark Maule | 1 | 0.27% | 1 | 7.69% |
| Thomas Gleixner | 1 | 0.27% | 1 | 7.69% |
| Total | 373 | 100.00% | 13 | 100.00% |
void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info)
{
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
int bit = sn_irq_info->irq_int_bit;
if (! sn_irq_info->irq_bridge)
return;
pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
if (pcidev_info) {
pcibus_info =
(struct pcibus_info *)pcidev_info->pdi_host_pcidev_info->
pdi_pcibus_info;
pcireg_force_intr_set(pcibus_info, bit);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 64 | 88.89% | 1 | 50.00% |
| Mark Maule | 8 | 11.11% | 1 | 50.00% |
| Total | 72 | 100.00% | 2 | 100.00% |
void pcibr_target_interrupt(struct sn_irq_info *sn_irq_info)
{
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
int bit = sn_irq_info->irq_int_bit;
u64 xtalk_addr = sn_irq_info->irq_xtalkaddr;
pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
if (pcidev_info) {
pcibus_info =
(struct pcibus_info *)pcidev_info->pdi_host_pcidev_info->
pdi_pcibus_info;
/* Disable the device's IRQ */
pcireg_intr_enable_bit_clr(pcibus_info, (1 << bit));
/* Change the device's IRQ */
pcireg_intr_addr_addr_set(pcibus_info, bit, xtalk_addr);
/* Re-enable the device's IRQ */
pcireg_intr_enable_bit_set(pcibus_info, (1 << bit));
pcibr_force_interrupt(sn_irq_info);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 93 | 90.29% | 1 | 25.00% |
| Mark Maule | 9 | 8.74% | 2 | 50.00% |
| Prarit Bhargava | 1 | 0.97% | 1 | 25.00% |
| Total | 103 | 100.00% | 4 | 100.00% |
/*
* Provider entries for PIC/CP
*/
struct sn_pcibus_provider pcibr_provider = {
.dma_map = pcibr_dma_map,
.dma_map_consistent = pcibr_dma_map_consistent,
.dma_unmap = pcibr_dma_unmap,
.bus_fixup = pcibr_bus_fixup,
.force_interrupt = pcibr_force_interrupt,
.target_interrupt = pcibr_target_interrupt
};
int
pcibr_init_provider(void)
{
sn_pci_provider[PCIIO_ASIC_TYPE_PIC] = &pcibr_provider;
sn_pci_provider[PCIIO_ASIC_TYPE_TIOCP] = &pcibr_provider;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark Maule | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(sal_pcibr_slot_enable);
EXPORT_SYMBOL_GPL(sal_pcibr_slot_disable);
EXPORT_SYMBOL_GPL(sn_ioboard_to_pci_bus);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Patrick Gefre | 589 | 55.41% | 1 | 3.57% |
| Prarit Bhargava | 271 | 25.49% | 5 | 17.86% |
| Mark Maule | 81 | 7.62% | 5 | 17.86% |
| Jes Sorensen | 33 | 3.10% | 3 | 10.71% |
| Mike Habeck | 26 | 2.45% | 1 | 3.57% |
| John Keller | 18 | 1.69% | 3 | 10.71% |
| Colin Ngam | 18 | 1.69% | 1 | 3.57% |
| Dimitri Sivanich | 7 | 0.66% | 1 | 3.57% |
| Christoph Lameter | 5 | 0.47% | 1 | 3.57% |
| Thomas Meyer | 3 | 0.28% | 1 | 3.57% |
| Paul Gortmaker | 3 | 0.28% | 1 | 3.57% |
| Tejun Heo | 3 | 0.28% | 1 | 3.57% |
| Mark Goodwin | 3 | 0.28% | 1 | 3.57% |
| Matthew Wilcox | 1 | 0.09% | 1 | 3.57% |
| Jesse Barnes | 1 | 0.09% | 1 | 3.57% |
| Thomas Gleixner | 1 | 0.09% | 1 | 3.57% |
| Total | 1063 | 100.00% | 28 | 100.00% |
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