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Some drivers need to reserve all PCI BARs to prevent other drivers
misusing unoccupied BARs. pcim_iomap_regions_request_all() requests
all BARs and iomap specified BARs.
Signed-off-by: Tejun Heo <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: Jeff Garzik <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
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Implement pcim_iounmap_regions() - the opposite of
pcim_iomap_regions().
Signed-off-by: Tejun heo <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
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It appears that the pcim_iomap_regions() function doesn't get the error
handling right. It BUGs early at boot with a backtrace along the lines of:
ahci_init
pci_register_driver
driver_register
[...]
ahci_init_one
pcim_iomap_region
pcim_iounmap
The following patch allows me to boot. Only the if(mask..) continue;
part fixes the problem actually, the gotos where changed so that we
don't try to unmap something we couldn't map anyway.
Signed-off-by: Frederik Deweerdt <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Jeff Garzik <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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* Split the implementation-agnostic stuff in separate files.
* Make sure that targets using non-default request_irq() pull
kernel/irq/devres.o
* Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive;
allow architectures to turn them off (we needed these symbols anyway for
dependencies of quite a few drivers).
* protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT.
Signed-off-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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