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-rw-r--r--drivers/pci/quirks.c314
1 files changed, 156 insertions, 158 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2990ad1e7c99..0f2b117cc59c 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -30,6 +30,162 @@
#include <asm/dma.h> /* isa_dma_bridge_buggy */
#include "pci.h"
+static ktime_t fixup_debug_start(struct pci_dev *dev,
+ void (*fn)(struct pci_dev *dev))
+{
+ if (initcall_debug)
+ pci_info(dev, "calling %pF @ %i\n", fn, task_pid_nr(current));
+
+ return ktime_get();
+}
+
+static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
+ void (*fn)(struct pci_dev *dev))
+{
+ ktime_t delta, rettime;
+ unsigned long long duration;
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+ if (initcall_debug || duration > 10000)
+ pci_info(dev, "%pF took %lld usecs\n", fn, duration);
+}
+
+static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
+ struct pci_fixup *end)
+{
+ ktime_t calltime;
+
+ for (; f < end; f++)
+ if ((f->class == (u32) (dev->class >> f->class_shift) ||
+ f->class == (u32) PCI_ANY_ID) &&
+ (f->vendor == dev->vendor ||
+ f->vendor == (u16) PCI_ANY_ID) &&
+ (f->device == dev->device ||
+ f->device == (u16) PCI_ANY_ID)) {
+ calltime = fixup_debug_start(dev, f->hook);
+ f->hook(dev);
+ fixup_debug_report(dev, calltime, f->hook);
+ }
+}
+
+extern struct pci_fixup __start_pci_fixups_early[];
+extern struct pci_fixup __end_pci_fixups_early[];
+extern struct pci_fixup __start_pci_fixups_header[];
+extern struct pci_fixup __end_pci_fixups_header[];
+extern struct pci_fixup __start_pci_fixups_final[];
+extern struct pci_fixup __end_pci_fixups_final[];
+extern struct pci_fixup __start_pci_fixups_enable[];
+extern struct pci_fixup __end_pci_fixups_enable[];
+extern struct pci_fixup __start_pci_fixups_resume[];
+extern struct pci_fixup __end_pci_fixups_resume[];
+extern struct pci_fixup __start_pci_fixups_resume_early[];
+extern struct pci_fixup __end_pci_fixups_resume_early[];
+extern struct pci_fixup __start_pci_fixups_suspend[];
+extern struct pci_fixup __end_pci_fixups_suspend[];
+extern struct pci_fixup __start_pci_fixups_suspend_late[];
+extern struct pci_fixup __end_pci_fixups_suspend_late[];
+
+static bool pci_apply_fixup_final_quirks;
+
+void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
+{
+ struct pci_fixup *start, *end;
+
+ switch (pass) {
+ case pci_fixup_early:
+ start = __start_pci_fixups_early;
+ end = __end_pci_fixups_early;
+ break;
+
+ case pci_fixup_header:
+ start = __start_pci_fixups_header;
+ end = __end_pci_fixups_header;
+ break;
+
+ case pci_fixup_final:
+ if (!pci_apply_fixup_final_quirks)
+ return;
+ start = __start_pci_fixups_final;
+ end = __end_pci_fixups_final;
+ break;
+
+ case pci_fixup_enable:
+ start = __start_pci_fixups_enable;
+ end = __end_pci_fixups_enable;
+ break;
+
+ case pci_fixup_resume:
+ start = __start_pci_fixups_resume;
+ end = __end_pci_fixups_resume;
+ break;
+
+ case pci_fixup_resume_early:
+ start = __start_pci_fixups_resume_early;
+ end = __end_pci_fixups_resume_early;
+ break;
+
+ case pci_fixup_suspend:
+ start = __start_pci_fixups_suspend;
+ end = __end_pci_fixups_suspend;
+ break;
+
+ case pci_fixup_suspend_late:
+ start = __start_pci_fixups_suspend_late;
+ end = __end_pci_fixups_suspend_late;
+ break;
+
+ default:
+ /* stupid compiler warning, you would think with an enum... */
+ return;
+ }
+ pci_do_fixups(dev, start, end);
+}
+EXPORT_SYMBOL(pci_fixup_device);
+
+static int __init pci_apply_final_quirks(void)
+{
+ struct pci_dev *dev = NULL;
+ u8 cls = 0;
+ u8 tmp;
+
+ if (pci_cache_line_size)
+ printk(KERN_DEBUG "PCI: CLS %u bytes\n",
+ pci_cache_line_size << 2);
+
+ pci_apply_fixup_final_quirks = true;
+ for_each_pci_dev(dev) {
+ pci_fixup_device(pci_fixup_final, dev);
+ /*
+ * If arch hasn't set it explicitly yet, use the CLS
+ * value shared by all PCI devices. If there's a
+ * mismatch, fall back to the default value.
+ */
+ if (!pci_cache_line_size) {
+ pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
+ if (!cls)
+ cls = tmp;
+ if (!tmp || cls == tmp)
+ continue;
+
+ printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n",
+ cls << 2, tmp << 2,
+ pci_dfl_cache_line_size << 2);
+ pci_cache_line_size = pci_dfl_cache_line_size;
+ }
+ }
+
+ if (!pci_cache_line_size) {
+ printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
+ cls << 2, pci_dfl_cache_line_size << 2);
+ pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
+ }
+
+ return 0;
+}
+fs_initcall_sync(pci_apply_final_quirks);
+
/*
* Decoding should be disabled for a PCI device during BAR sizing to avoid
* conflict. But doing so may cause problems on host bridge and perhaps other
@@ -2981,28 +3137,6 @@ static void quirk_intel_ntb(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb);
-static ktime_t fixup_debug_start(struct pci_dev *dev,
- void (*fn)(struct pci_dev *dev))
-{
- if (initcall_debug)
- pci_info(dev, "calling %pF @ %i\n", fn, task_pid_nr(current));
-
- return ktime_get();
-}
-
-static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
- void (*fn)(struct pci_dev *dev))
-{
- ktime_t delta, rettime;
- unsigned long long duration;
-
- rettime = ktime_get();
- delta = ktime_sub(rettime, calltime);
- duration = (unsigned long long) ktime_to_ns(delta) >> 10;
- if (initcall_debug || duration > 10000)
- pci_info(dev, "%pF took %lld usecs\n", fn, duration);
-}
-
/*
* Some BIOS implementations leave the Intel GPU interrupts enabled,
* even though no one is handling them (f.e. i915 driver is never loaded).
@@ -3397,142 +3531,6 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
quirk_apple_wait_for_thunderbolt);
#endif
-static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
- struct pci_fixup *end)
-{
- ktime_t calltime;
-
- for (; f < end; f++)
- if ((f->class == (u32) (dev->class >> f->class_shift) ||
- f->class == (u32) PCI_ANY_ID) &&
- (f->vendor == dev->vendor ||
- f->vendor == (u16) PCI_ANY_ID) &&
- (f->device == dev->device ||
- f->device == (u16) PCI_ANY_ID)) {
- calltime = fixup_debug_start(dev, f->hook);
- f->hook(dev);
- fixup_debug_report(dev, calltime, f->hook);
- }
-}
-
-extern struct pci_fixup __start_pci_fixups_early[];
-extern struct pci_fixup __end_pci_fixups_early[];
-extern struct pci_fixup __start_pci_fixups_header[];
-extern struct pci_fixup __end_pci_fixups_header[];
-extern struct pci_fixup __start_pci_fixups_final[];
-extern struct pci_fixup __end_pci_fixups_final[];
-extern struct pci_fixup __start_pci_fixups_enable[];
-extern struct pci_fixup __end_pci_fixups_enable[];
-extern struct pci_fixup __start_pci_fixups_resume[];
-extern struct pci_fixup __end_pci_fixups_resume[];
-extern struct pci_fixup __start_pci_fixups_resume_early[];
-extern struct pci_fixup __end_pci_fixups_resume_early[];
-extern struct pci_fixup __start_pci_fixups_suspend[];
-extern struct pci_fixup __end_pci_fixups_suspend[];
-extern struct pci_fixup __start_pci_fixups_suspend_late[];
-extern struct pci_fixup __end_pci_fixups_suspend_late[];
-
-static bool pci_apply_fixup_final_quirks;
-
-void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
-{
- struct pci_fixup *start, *end;
-
- switch (pass) {
- case pci_fixup_early:
- start = __start_pci_fixups_early;
- end = __end_pci_fixups_early;
- break;
-
- case pci_fixup_header:
- start = __start_pci_fixups_header;
- end = __end_pci_fixups_header;
- break;
-
- case pci_fixup_final:
- if (!pci_apply_fixup_final_quirks)
- return;
- start = __start_pci_fixups_final;
- end = __end_pci_fixups_final;
- break;
-
- case pci_fixup_enable:
- start = __start_pci_fixups_enable;
- end = __end_pci_fixups_enable;
- break;
-
- case pci_fixup_resume:
- start = __start_pci_fixups_resume;
- end = __end_pci_fixups_resume;
- break;
-
- case pci_fixup_resume_early:
- start = __start_pci_fixups_resume_early;
- end = __end_pci_fixups_resume_early;
- break;
-
- case pci_fixup_suspend:
- start = __start_pci_fixups_suspend;
- end = __end_pci_fixups_suspend;
- break;
-
- case pci_fixup_suspend_late:
- start = __start_pci_fixups_suspend_late;
- end = __end_pci_fixups_suspend_late;
- break;
-
- default:
- /* stupid compiler warning, you would think with an enum... */
- return;
- }
- pci_do_fixups(dev, start, end);
-}
-EXPORT_SYMBOL(pci_fixup_device);
-
-
-static int __init pci_apply_final_quirks(void)
-{
- struct pci_dev *dev = NULL;
- u8 cls = 0;
- u8 tmp;
-
- if (pci_cache_line_size)
- printk(KERN_DEBUG "PCI: CLS %u bytes\n",
- pci_cache_line_size << 2);
-
- pci_apply_fixup_final_quirks = true;
- for_each_pci_dev(dev) {
- pci_fixup_device(pci_fixup_final, dev);
- /*
- * If arch hasn't set it explicitly yet, use the CLS
- * value shared by all PCI devices. If there's a
- * mismatch, fall back to the default value.
- */
- if (!pci_cache_line_size) {
- pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
- if (!cls)
- cls = tmp;
- if (!tmp || cls == tmp)
- continue;
-
- printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n",
- cls << 2, tmp << 2,
- pci_dfl_cache_line_size << 2);
- pci_cache_line_size = pci_dfl_cache_line_size;
- }
- }
-
- if (!pci_cache_line_size) {
- printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
- cls << 2, pci_dfl_cache_line_size << 2);
- pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
- }
-
- return 0;
-}
-
-fs_initcall_sync(pci_apply_final_quirks);
-
/*
* Following are device-specific reset methods which can be used to
* reset a single function if other methods (e.g. FLR, PM D0->D3) are
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-06 20:33:52 +0200