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platform_kernel-5.15
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[SPARC64]: Don't expect cfg space in PCI PBM ranges on SUN4V. 

PCI cfg space is accessed transparently through the Hypervisor and not
through direct cpu PIO operations.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-02-11 23:38:00 -08:00
parent 6241e5cc6a
commit 221b2fb818
1 changed files with 5 additions and 15 deletions
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20
arch/sparc64/kernel/pci_sun4v.c
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@ -639,9 +639,9 @@ static void pci_sun4v_resource_adjust(struct pci_dev *pdev,
*/ */
static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm) static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm)
{ {
int i, saw_cfg, saw_mem, saw_io; int i, saw_mem, saw_io;
saw_cfg = saw_mem = saw_io = 0; saw_mem = saw_io = 0;
for (i = 0; i < pbm->num_pbm_ranges; i++) { for (i = 0; i < pbm->num_pbm_ranges; i++) {
struct linux_prom_pci_ranges *pr = &pbm->pbm_ranges[i]; struct linux_prom_pci_ranges *pr = &pbm->pbm_ranges[i];
unsigned long a; unsigned long a;
@ -652,12 +652,6 @@ static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm)
((unsigned long)pr->parent_phys_lo << 0UL)); ((unsigned long)pr->parent_phys_lo << 0UL));
switch (type) { switch (type) {
case 0:
/* PCI config space, 16MB */
pbm->config_space = a;
saw_cfg = 1;
break;
case 1: case 1:
/* 16-bit IO space, 16MB */ /* 16-bit IO space, 16MB */
pbm->io_space.start = a; pbm->io_space.start = a;
@ -679,19 +673,15 @@ static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm)
}; };
} }
if (!saw_cfg || !saw_io || !saw_mem) { if (!saw_io || !saw_mem) {
prom_printf("%s: Fatal error, missing %s PBM range.\n", prom_printf("%s: Fatal error, missing %s PBM range.\n",
pbm->name, pbm->name,
((!saw_cfg ? (!saw_io ? "IO" : "MEM"));
"CFG" :
(!saw_io ?
"IO" : "MEM"))));
prom_halt(); prom_halt();
} }
printk("%s: PCI CFG[%lx] IO[%lx] MEM[%lx]\n", printk("%s: PCI IO[%lx] MEM[%lx]\n",
pbm->name, pbm->name,
pbm->config_space,
pbm->io_space.start, pbm->io_space.start,
pbm->mem_space.start); pbm->mem_space.start);
} }