common.c (664b0bae0b87f69bc9deb098f5e0158b9cf18e04) common.c (601bf18b6630d37bde945fc890a995650f53e2c9)
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/pci.h>
3#include <linux/interrupt.h>
4#include <linux/timer.h>
5#include <linux/kernel.h>
6
7/*
8 * These functions are used early on before PCI scanning is done

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49int __init pci_is_66mhz_capable(struct pci_channel *hose,
50 int top_bus, int current_bus)
51{
52 u32 pci_devfn;
53 unsigned short vid;
54 int cap66 = -1;
55 u16 stat;
56
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/pci.h>
3#include <linux/interrupt.h>
4#include <linux/timer.h>
5#include <linux/kernel.h>
6
7/*
8 * These functions are used early on before PCI scanning is done

--- 40 unchanged lines hidden (view full) ---

49int __init pci_is_66mhz_capable(struct pci_channel *hose,
50 int top_bus, int current_bus)
51{
52 u32 pci_devfn;
53 unsigned short vid;
54 int cap66 = -1;
55 u16 stat;
56
57 printk(KERN_INFO "PCI: Checking 66MHz capabilities...\n");
57 pr_info("PCI: Checking 66MHz capabilities...\n");
58
59 for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
60 if (PCI_FUNC(pci_devfn))
61 continue;
62 if (early_read_config_word(hose, top_bus, current_bus,
63 pci_devfn, PCI_VENDOR_ID, &vid) !=
64 PCIBIOS_SUCCESSFUL)
65 continue;

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129 cmd |= PCI_STATUS_REC_MASTER_ABORT;
130 }
131
132 if (status & PCI_STATUS_REC_TARGET_ABORT) {
133 printk(KERN_DEBUG "PCI: target abort: ");
134 pcibios_report_status(PCI_STATUS_REC_TARGET_ABORT |
135 PCI_STATUS_SIG_TARGET_ABORT |
136 PCI_STATUS_REC_MASTER_ABORT, 1);
58
59 for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
60 if (PCI_FUNC(pci_devfn))
61 continue;
62 if (early_read_config_word(hose, top_bus, current_bus,
63 pci_devfn, PCI_VENDOR_ID, &vid) !=
64 PCIBIOS_SUCCESSFUL)
65 continue;

--- 63 unchanged lines hidden (view full) ---

129 cmd |= PCI_STATUS_REC_MASTER_ABORT;
130 }
131
132 if (status & PCI_STATUS_REC_TARGET_ABORT) {
133 printk(KERN_DEBUG "PCI: target abort: ");
134 pcibios_report_status(PCI_STATUS_REC_TARGET_ABORT |
135 PCI_STATUS_SIG_TARGET_ABORT |
136 PCI_STATUS_REC_MASTER_ABORT, 1);
137 printk("\n");
137 pr_cont("\n");
138
139 cmd |= PCI_STATUS_REC_TARGET_ABORT;
140 }
141
142 if (status & (PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY)) {
143 printk(KERN_DEBUG "PCI: parity error detected: ");
144 pcibios_report_status(PCI_STATUS_PARITY |
145 PCI_STATUS_DETECTED_PARITY, 1);
138
139 cmd |= PCI_STATUS_REC_TARGET_ABORT;
140 }
141
142 if (status & (PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY)) {
143 printk(KERN_DEBUG "PCI: parity error detected: ");
144 pcibios_report_status(PCI_STATUS_PARITY |
145 PCI_STATUS_DETECTED_PARITY, 1);
146 printk("\n");
146 pr_cont("\n");
147
148 cmd |= PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY;
149
150 /* Now back off of the IRQ for awhile */
151 if (hose->err_irq) {
152 disable_irq_nosync(hose->err_irq);
153 hose->err_timer.expires = jiffies + HZ;
154 add_timer(&hose->err_timer);
155 }
156 }
157
158 return cmd;
159}
147
148 cmd |= PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY;
149
150 /* Now back off of the IRQ for awhile */
151 if (hose->err_irq) {
152 disable_irq_nosync(hose->err_irq);
153 hose->err_timer.expires = jiffies + HZ;
154 add_timer(&hose->err_timer);
155 }
156 }
157
158 return cmd;
159}