* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
-
-#ifdef CONFIG_PNP_DEBUG
- #define DEBUG
-#else
- #undef DEBUG
-#endif
-
#include <linux/pnp.h>
+#include <linux/io.h>
+#include <linux/kallsyms.h>
#include "base.h"
-
static void quirk_awe32_resources(struct pnp_dev *dev)
{
struct pnp_port *port, *port2, *port3;
* two extra ports (at offset 0x400 and 0x800 from the one given) by
* hand.
*/
- for ( ; res ; res = res->next ) {
+ for (; res; res = res->next) {
port2 = pnp_alloc(sizeof(struct pnp_port));
if (!port2)
return;
struct pnp_option *res = dev->dependent;
unsigned long tmp;
- for ( ; res ; res = res->next ) {
+ for (; res; res = res->next) {
struct pnp_irq *irq;
struct pnp_dma *dma;
- for( irq = res->irq; irq; irq = irq->next ) { // Valid irqs are 5, 7, 10
+ for (irq = res->irq; irq; irq = irq->next) { // Valid irqs are 5, 7, 10
tmp = 0x04A0;
bitmap_copy(irq->map, &tmp, 16); // 0000 0100 1010 0000
}
- for( dma = res->dma; dma; dma = dma->next ) // Valid 8bit dma channels are 1,3
- if( ( dma->flags & IORESOURCE_DMA_TYPE_MASK ) == IORESOURCE_DMA_8BIT )
+ for (dma = res->dma; dma; dma = dma->next) // Valid 8bit dma channels are 1,3
+ if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) ==
+ IORESOURCE_DMA_8BIT)
dma->map = 0x000A;
}
printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
{
struct pnp_port *port;
struct pnp_option *res = dev->dependent;
- int changed = 0;
+ int changed = 0;
/*
* The default range on the mpu port for these devices is 0x388-0x388.
* auto-configured.
*/
- for( ; res ; res = res->next ) {
+ for (; res; res = res->next) {
port = res->port;
- if(!port)
+ if (!port)
continue;
port = port->next;
- if(!port)
+ if (!port)
continue;
port = port->next;
- if(!port)
+ if (!port)
continue;
- if(port->min != port->max)
+ if (port->min != port->max)
continue;
port->max += 0x70;
changed = 1;
}
- if(changed)
- printk(KERN_INFO "pnp: SB audio device quirk - increasing port range\n");
- return;
+ if (changed)
+ printk(KERN_INFO
+ "pnp: SB audio device quirk - increasing port range\n");
+}
+
+
+#include <linux/pci.h>
+
+static void quirk_system_pci_resources(struct pnp_dev *dev)
+{
+ struct pci_dev *pdev = NULL;
+ 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; j < PNP_MAX_MEM; j++) {
+ if (!pnp_mem_valid(dev, j) ||
+ pnp_mem_len(dev, j) == 0)
+ continue;
+
+ pnp_start = pnp_mem_start(dev, j);
+ pnp_end = pnp_mem_end(dev, j);
+
+ /*
+ * 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);
+ pnp_mem_flags(dev, j) = 0;
+ }
+ }
+ }
}
/*
static struct pnp_fixup pnp_fixups[] = {
/* Soundblaster awe io port quirk */
- { "CTL0021", quirk_awe32_resources },
- { "CTL0022", quirk_awe32_resources },
- { "CTL0023", quirk_awe32_resources },
+ {"CTL0021", quirk_awe32_resources},
+ {"CTL0022", quirk_awe32_resources},
+ {"CTL0023", quirk_awe32_resources},
/* CMI 8330 interrupt and dma fix */
- { "@X@0001", quirk_cmi8330_resources },
+ {"@X@0001", quirk_cmi8330_resources},
/* Soundblaster audio device io port range quirk */
- { "CTL0001", quirk_sb16audio_resources },
- { "CTL0031", quirk_sb16audio_resources },
- { "CTL0041", quirk_sb16audio_resources },
- { "CTL0042", quirk_sb16audio_resources },
- { "CTL0043", quirk_sb16audio_resources },
- { "CTL0044", quirk_sb16audio_resources },
- { "CTL0045", quirk_sb16audio_resources },
- { "" }
+ {"CTL0001", quirk_sb16audio_resources},
+ {"CTL0031", quirk_sb16audio_resources},
+ {"CTL0041", quirk_sb16audio_resources},
+ {"CTL0042", quirk_sb16audio_resources},
+ {"CTL0043", quirk_sb16audio_resources},
+ {"CTL0044", quirk_sb16audio_resources},
+ {"CTL0045", quirk_sb16audio_resources},
+ {"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)) {
- pnp_dbg("Calling quirk for %s",
- dev->dev.bus_id);
- pnp_fixups[i].quirk_function(dev);
+ if (compare_pnp_id(dev->id, pnp_fixups[i].id)) {
+ quirk = pnp_fixups[i].quirk_function;
+
+#ifdef DEBUG
+ dev_dbg(&dev->dev, "calling quirk 0x%p", quirk);
+ print_fn_descriptor_symbol(": %s()\n",
+ (unsigned long) *quirk);
+#endif
+ (*quirk)(dev);
}
i++;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff