From 4516a618a76eae6eb1b37259ad49f39b7b7f33d8 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Mon, 5 Feb 2007 16:36:06 -0800 Subject: PCI: Make CARDBUS_MEM_SIZE and CARDBUS_IO_SIZE boot options CARDBUS_MEM_SIZE was increased to 64MB on 2.6.20-rc2, but larger size might result in allocation failure for the reserving itself on some platforms (for example typical 32bit MIPS). Make it (and CARDBUS_IO_SIZE too) customizable by "pci=" option for such platforms. Signed-off-by: Atsushi Nemoto Cc: Daniel Ritz Cc: Ralf Baechle Cc: Ivan Kokshaysky Cc: Dominik Brodowski Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/pci.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/pci.h') diff --git a/include/linux/pci.h b/include/linux/pci.h index 98c8765a488..2c4b6842dfb 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -854,5 +854,8 @@ extern int pci_pci_problems; #define PCIPCI_ALIMAGIK 32 /* Need low latency setting */ #define PCIAGP_FAIL 64 /* No PCI to AGP DMA */ +extern unsigned long pci_cardbus_io_size; +extern unsigned long pci_cardbus_mem_size; + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ -- cgit From f5f2b13129a6541debf8851bae843cbbf48298b7 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 5 Mar 2007 00:30:07 -0800 Subject: [PATCH] msi: sanely support hardware level msi disabling In some cases when we are not using msi we need a way to ensure that the hardware does not have an msi capability enabled. Currently the code has been calling disable_msi_mode to try and achieve that. However disable_msi_mode has several other side effects and is only available when msi support is compiled in so it isn't really appropriate. Instead this patch implements pci_msi_off which disables all msi and msix capabilities unconditionally with no additional side effects. pci_disable_device was redundantly clearing the bus master enable flag and clearing the msi enable bit. A device that is not allowed to perform bus mastering operations cannot generate intx or msi interrupt messages as those are essentially a special case of dma, and require bus mastering. So the call in pci_disable_device to disable msi capabilities was redundant. quirk_pcie_pxh also called disable_msi_mode and is updated to use pci_msi_off. Signed-off-by: Eric W. Biederman Cc: Michael Ellerman Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/pci.h') diff --git a/include/linux/pci.h b/include/linux/pci.h index 2c4b6842dfb..78417e421b4 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -543,6 +543,7 @@ void pci_set_master(struct pci_dev *dev); int __must_check pci_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); +void pci_msi_off(struct pci_dev *dev); int pci_set_dma_mask(struct pci_dev *dev, u64 mask); int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask); void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); -- cgit From 9f35575dfc172f0a93fb464761883c8f49599b7a Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 8 Mar 2007 13:06:13 -0700 Subject: [PATCH] pci: Repair pci_save/restore_state so we can restore one save many times. Because we do not reserve space for the pci-x and pci-e state in struct pci dev we need to dynamically allocate it. However because we need to support restore being called multiple times after a single save it is never safe to free the buffers we have allocated to hold the state. So this patch modifies the save routines to first check to see if we have already allocated a state buffer before allocating a new one. Then the restore routines are modified to not free the state after restoring it. Simple and it fixes some subtle error path handling bugs, that are hard to test for. Signed-off-by: Eric W. Biederman Signed-off-by: Greg Kroah-Hartman Acked-by: Auke Kok Signed-off-by: Linus Torvalds --- include/linux/pci.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux/pci.h') diff --git a/include/linux/pci.h b/include/linux/pci.h index 78417e421b4..481ea0663f1 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -209,11 +209,6 @@ static inline void pci_add_saved_cap(struct pci_dev *pci_dev, hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space); } -static inline void pci_remove_saved_cap(struct pci_cap_saved_state *cap) -{ - hlist_del(&cap->next); -} - /* * For PCI devices, the region numbers are assigned this way: * -- cgit From 21c7f30b1d3f8a3de3128478daca3ce203fc8733 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Mon, 5 Feb 2007 16:15:25 -0800 Subject: driver core: per-subsystem multithreaded probing Make multithreaded probing work per subsystem instead of per driver. It doesn't make much sense to probe the same device for multiple drivers in parallel (after all, only one driver can bind to the device). Instead, create a probing thread for each device that probes the drivers one after another. Also make the decision to use multi-threaded probe per bus instead of per device and adapt the pci code. Signed-off-by: Cornelia Huck Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/pci.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux/pci.h') diff --git a/include/linux/pci.h b/include/linux/pci.h index 481ea0663f1..a3ad76221c6 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -361,8 +361,6 @@ struct pci_driver { struct pci_error_handlers *err_handler; struct device_driver driver; struct pci_dynids dynids; - - int multithread_probe; }; #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver) -- cgit From ec04b075843d12b5115267415d0426b48e672136 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 9 Mar 2007 19:45:58 +0900 Subject: iomap: implement pcim_iounmap_regions() Implement pcim_iounmap_regions() - the opposite of pcim_iomap_regions(). Signed-off-by: Tejun heo Signed-off-by: Jeff Garzik --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/pci.h') diff --git a/include/linux/pci.h b/include/linux/pci.h index a3ad76221c6..972491089ac 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -838,6 +838,7 @@ void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen); void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr); void __iomem * const * pcim_iomap_table(struct pci_dev *pdev); int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name); +void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask); extern int pci_pci_problems; #define PCIPCI_FAIL 1 /* No PCI PCI DMA */ -- cgit