| Message ID | 20181208174115.16237-7-hch@lst.de (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Paul Burton |
| Headers | show |
| Series | [1/6] sparc: remove no needed sbus_dma_ops methods | expand |
From: Christoph Hellwig <hch@lst.de> Date: Sat, 8 Dec 2018 09:41:15 -0800 > There are enough common defintions that a single header seems nicer. > > Also drop the pointless <linux/dma-mapping.h> include. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: David S. Miller <davem@davemloft.net>
Dave, can you pick the series up through the sparc tree? I could also merge it through the dma-mapping tree, but given that there is no dependency on it the sparc tree seem like the better fit.
From: Christoph Hellwig <hch@lst.de> Date: Mon, 10 Dec 2018 17:32:56 +0100 > Dave, can you pick the series up through the sparc tree? I could also > merge it through the dma-mapping tree, but given that there is no > dependency on it the sparc tree seem like the better fit. I thought that some of this is a prerequisite for the DMA mapping work and overall consolidation you are doing. So I kinda assumed you wanted to merge it via your tree. I anticipate no conflicts at all, even until the next merge window, so it could very easily go through your tree. Let me know if you still want me to merge this. Thanks.
On Mon, Dec 10, 2018 at 10:10:39AM -0800, David Miller wrote: > From: Christoph Hellwig <hch@lst.de> > Date: Mon, 10 Dec 2018 17:32:56 +0100 > > > Dave, can you pick the series up through the sparc tree? I could also > > merge it through the dma-mapping tree, but given that there is no > > dependency on it the sparc tree seem like the better fit. > > I thought that some of this is a prerequisite for the DMA mapping > work and overall consolidation you are doing. So I kinda assumed > you wanted to merge it via your tree. > > I anticipate no conflicts at all, even until the next merge window, > so it could very easily go through your tree. > > Let me know if you still want me to merge this. These patches are purely cleanups I found while auditing the DMA mapping code, at least as of now there are no dependencies. That being said now that I looked into it a bit more they do however depend on the ->mapping_error removal, so I'll take them through the dma-mapping tree.
From: Christoph Hellwig <hch@lst.de> Date: Mon, 10 Dec 2018 20:22:28 +0100 > On Mon, Dec 10, 2018 at 10:10:39AM -0800, David Miller wrote: >> From: Christoph Hellwig <hch@lst.de> >> Date: Mon, 10 Dec 2018 17:32:56 +0100 >> >> > Dave, can you pick the series up through the sparc tree? I could also >> > merge it through the dma-mapping tree, but given that there is no >> > dependency on it the sparc tree seem like the better fit. >> >> I thought that some of this is a prerequisite for the DMA mapping >> work and overall consolidation you are doing. So I kinda assumed >> you wanted to merge it via your tree. >> >> I anticipate no conflicts at all, even until the next merge window, >> so it could very easily go through your tree. >> >> Let me know if you still want me to merge this. > > These patches are purely cleanups I found while auditing the DMA > mapping code, at least as of now there are no dependencies. > > That being said now that I looked into it a bit more they do however > depend on the ->mapping_error removal, so I'll take them through > the dma-mapping tree. Ok, thanks.
I've pulled this into the dma-mapping for-next tree now.
diff --git a/arch/sparc/include/asm/pci.h b/arch/sparc/include/asm/pci.h index cad79a6ce0e4..cfec79bb1831 100644 --- a/arch/sparc/include/asm/pci.h +++ b/arch/sparc/include/asm/pci.h @@ -1,9 +1,54 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef ___ASM_SPARC_PCI_H #define ___ASM_SPARC_PCI_H -#if defined(__sparc__) && defined(__arch64__) -#include <asm/pci_64.h> + + +/* Can be used to override the logic in pci_scan_bus for skipping + * already-configured bus numbers - to be used for buggy BIOSes + * or architectures with incomplete PCI setup by the loader. + */ +#define pcibios_assign_all_busses() 0 + +#define PCIBIOS_MIN_IO 0UL +#define PCIBIOS_MIN_MEM 0UL + +#define PCI_IRQ_NONE 0xffffffff + + +#ifdef CONFIG_SPARC64 + +/* PCI IOMMU mapping bypass support. */ + +/* PCI 64-bit addressing works for all slots on all controller + * types on sparc64. However, it requires that the device + * can drive enough of the 64 bits. + */ +#define PCI64_REQUIRED_MASK (~(u64)0) +#define PCI64_ADDR_BASE 0xfffc000000000000UL + +/* Return the index of the PCI controller for device PDEV. */ +int pci_domain_nr(struct pci_bus *bus); +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return 1; +} + +/* Platform support for /proc/bus/pci/X/Y mmap()s. */ +#define HAVE_PCI_MMAP +#define arch_can_pci_mmap_io() 1 +#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA +#define get_pci_unmapped_area get_fb_unmapped_area + +#define HAVE_ARCH_PCI_RESOURCE_TO_USER +#endif /* CONFIG_SPARC64 */ + +#if defined(CONFIG_SPARC64) || defined(CONFIG_LEON_PCI) +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + return PCI_IRQ_NONE; +} #else -#include <asm/pci_32.h> -#endif +#include <asm-generic/pci.h> #endif + +#endif /* ___ASM_SPARC_PCI_H */ diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h deleted file mode 100644 index a475380ea108..000000000000 --- a/arch/sparc/include/asm/pci_32.h +++ /dev/null @@ -1,32 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __SPARC_PCI_H -#define __SPARC_PCI_H - -#ifdef __KERNEL__ - -#include <linux/dma-mapping.h> - -/* Can be used to override the logic in pci_scan_bus for skipping - * already-configured bus numbers - to be used for buggy BIOSes - * or architectures with incomplete PCI setup by the loader. - */ -#define pcibios_assign_all_busses() 0 - -#define PCIBIOS_MIN_IO 0UL -#define PCIBIOS_MIN_MEM 0UL - -#define PCI_IRQ_NONE 0xffffffff - -#endif /* __KERNEL__ */ - -#ifndef CONFIG_LEON_PCI -/* generic pci stuff */ -#include <asm-generic/pci.h> -#else -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return PCI_IRQ_NONE; -} -#endif - -#endif /* __SPARC_PCI_H */ diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h deleted file mode 100644 index fac77813402c..000000000000 --- a/arch/sparc/include/asm/pci_64.h +++ /dev/null @@ -1,52 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __SPARC64_PCI_H -#define __SPARC64_PCI_H - -#ifdef __KERNEL__ - -#include <linux/dma-mapping.h> - -/* Can be used to override the logic in pci_scan_bus for skipping - * already-configured bus numbers - to be used for buggy BIOSes - * or architectures with incomplete PCI setup by the loader. - */ -#define pcibios_assign_all_busses() 0 - -#define PCIBIOS_MIN_IO 0UL -#define PCIBIOS_MIN_MEM 0UL - -#define PCI_IRQ_NONE 0xffffffff - -/* PCI IOMMU mapping bypass support. */ - -/* PCI 64-bit addressing works for all slots on all controller - * types on sparc64. However, it requires that the device - * can drive enough of the 64 bits. - */ -#define PCI64_REQUIRED_MASK (~(u64)0) -#define PCI64_ADDR_BASE 0xfffc000000000000UL - -/* Return the index of the PCI controller for device PDEV. */ - -int pci_domain_nr(struct pci_bus *bus); -static inline int pci_proc_domain(struct pci_bus *bus) -{ - return 1; -} - -/* Platform support for /proc/bus/pci/X/Y mmap()s. */ - -#define HAVE_PCI_MMAP -#define arch_can_pci_mmap_io() 1 -#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA -#define get_pci_unmapped_area get_fb_unmapped_area - -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return PCI_IRQ_NONE; -} - -#define HAVE_ARCH_PCI_RESOURCE_TO_USER -#endif /* __KERNEL__ */ - -#endif /* __SPARC64_PCI_H */