port2->max += 0x400;
port3->min += 0x800;
port3->max += 0x800;
+ dev_info(&dev->dev,
+ "AWE32 quirk - added ioports 0x%lx and 0x%lx\n",
+ (unsigned long)port2->min,
+ (unsigned long)port3->min);
}
- printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
}
static void quirk_cmi8330_resources(struct pnp_dev *dev)
IORESOURCE_DMA_8BIT)
dma->map = 0x000A;
}
- printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
+ dev_info(&dev->dev, "CMI8330 quirk - forced possible IRQs to 5, 7, 10 "
+ "and DMA channels to 1, 3\n");
}
static void quirk_sb16audio_resources(struct pnp_dev *dev)
changed = 1;
}
if (changed)
- printk(KERN_INFO
- "pnp: SB audio device quirk - increasing port range\n");
+ dev_info(&dev->dev, "SB audio device quirk - increased port range\n");
+}
+
+static struct pnp_option *quirk_isapnp_mpu_options(struct pnp_dev *dev)
+{
+ struct pnp_option *head = NULL;
+ struct pnp_option *prev = NULL;
+ struct pnp_option *res;
+
+ /*
+ * Build a functional IRQ-less variant of each MPU option.
+ */
+
+ for (res = dev->dependent; res; res = res->next) {
+ struct pnp_option *curr;
+ struct pnp_port *port;
+ struct pnp_port *copy;
+
+ port = res->port;
+ if (!port || !res->irq)
+ continue;
+
+ copy = pnp_alloc(sizeof *copy);
+ if (!copy)
+ break;
+
+ copy->min = port->min;
+ copy->max = port->max;
+ copy->align = port->align;
+ copy->size = port->size;
+ copy->flags = port->flags;
+
+ curr = pnp_build_option(PNP_RES_PRIORITY_FUNCTIONAL);
+ if (!curr) {
+ kfree(copy);
+ break;
+ }
+ curr->port = copy;
+
+ if (prev)
+ prev->next = curr;
+ else
+ head = curr;
+ prev = curr;
+ }
+ if (head)
+ dev_info(&dev->dev, "adding IRQ-less MPU options\n");
+
+ return head;
+}
+
+static void quirk_ad1815_mpu_resources(struct pnp_dev *dev)
+{
+ struct pnp_option *res;
+ struct pnp_irq *irq;
+
+ /*
+ * Distribute the independent IRQ over the dependent options
+ */
+
+ res = dev->independent;
+ if (!res)
+ return;
+
+ irq = res->irq;
+ if (!irq || irq->next)
+ return;
+
+ res = dev->dependent;
+ if (!res)
+ return;
+
+ while (1) {
+ struct pnp_irq *copy;
+
+ copy = pnp_alloc(sizeof *copy);
+ if (!copy)
+ break;
+
+ memcpy(copy->map, irq->map, sizeof copy->map);
+ copy->flags = irq->flags;
+
+ copy->next = res->irq; /* Yes, this is NULL */
+ res->irq = copy;
+
+ if (!res->next)
+ break;
+ res = res->next;
+ }
+ kfree(irq);
+
+ res->next = quirk_isapnp_mpu_options(dev);
+
+ res = dev->independent;
+ res->irq = NULL;
+}
+
+static void quirk_isapnp_mpu_resources(struct pnp_dev *dev)
+{
+ struct pnp_option *res;
+
+ res = dev->dependent;
+ if (!res)
+ return;
+
+ while (res->next)
+ res = res->next;
+
+ res->next = quirk_isapnp_mpu_options(dev);
+}
+
+#include <linux/pci.h>
+
+static void quirk_system_pci_resources(struct pnp_dev *dev)
+{
+ struct pci_dev *pdev = NULL;
+ struct resource *res;
+ resource_size_t pnp_start, pnp_end, pci_start, pci_end;
+ int i, j;
+
+ /*
+ * Some BIOSes have PNP motherboard devices with resources that
+ * partially overlap PCI BARs. The PNP system driver claims these
+ * motherboard resources, which prevents the normal PCI driver from
+ * requesting them later.
+ *
+ * This patch disables the PNP resources that conflict with PCI BARs
+ * so they won't be claimed by the PNP system driver.
+ */
+ for_each_pci_dev(pdev) {
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) ||
+ pci_resource_len(pdev, i) == 0)
+ continue;
+
+ pci_start = pci_resource_start(pdev, i);
+ pci_end = pci_resource_end(pdev, i);
+ for (j = 0;
+ (res = pnp_get_resource(dev, IORESOURCE_MEM, j));
+ j++) {
+ if (res->flags & IORESOURCE_UNSET ||
+ (res->start == 0 && res->end == 0))
+ continue;
+
+ pnp_start = res->start;
+ pnp_end = res->end;
+
+ /*
+ * If the PNP region doesn't overlap the PCI
+ * region at all, there's no problem.
+ */
+ if (pnp_end < pci_start || pnp_start > pci_end)
+ continue;
+
+ /*
+ * If the PNP region completely encloses (or is
+ * at least as large as) the PCI region, that's
+ * also OK. For example, this happens when the
+ * PNP device describes a bridge with PCI
+ * behind it.
+ */
+ if (pnp_start <= pci_start &&
+ pnp_end >= pci_end)
+ continue;
+
+ /*
+ * Otherwise, the PNP region overlaps *part* of
+ * the PCI region, and that might prevent a PCI
+ * driver from requesting its resources.
+ */
+ dev_warn(&dev->dev, "mem resource "
+ "(0x%llx-0x%llx) overlaps %s BAR %d "
+ "(0x%llx-0x%llx), disabling\n",
+ (unsigned long long) pnp_start,
+ (unsigned long long) pnp_end,
+ pci_name(pdev), i,
+ (unsigned long long) pci_start,
+ (unsigned long long) pci_end);
+ res->flags |= IORESOURCE_DISABLED;
+ }
+ }
+ }
}
/*
{"CTL0043", quirk_sb16audio_resources},
{"CTL0044", quirk_sb16audio_resources},
{"CTL0045", quirk_sb16audio_resources},
+ /* Add IRQ-less MPU options */
+ {"ADS7151", quirk_ad1815_mpu_resources},
+ {"ADS7181", quirk_isapnp_mpu_resources},
+ {"AZT0002", quirk_isapnp_mpu_resources},
+ /* PnP resources that might overlap PCI BARs */
+ {"PNP0c01", quirk_system_pci_resources},
+ {"PNP0c02", quirk_system_pci_resources},
{""}
};
void pnp_fixup_device(struct pnp_dev *dev)
{
- int i = 0;
- void (*quirk)(struct pnp_dev *);
-
- while (*pnp_fixups[i].id) {
- if (compare_pnp_id(dev->id, pnp_fixups[i].id)) {
- quirk = pnp_fixups[i].quirk_function;
+ struct pnp_fixup *f;
+ for (f = pnp_fixups; *f->id; f++) {
+ if (!compare_pnp_id(dev->id, f->id))
+ continue;
#ifdef DEBUG
- dev_dbg(&dev->dev, "calling quirk 0x%p", quirk);
- print_fn_descriptor_symbol(": %s()\n",
- (unsigned long) *quirk);
+ dev_dbg(&dev->dev, "%s: calling ", f->id);
+ print_fn_descriptor_symbol("%s\n", f->quirk_function);
#endif
- (*quirk)(dev);
- }
- i++;
+ f->quirk_function(dev);
}
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff