WSL2-Linux-Kernel/include/asm-parisc/scatterlist.h

#ifndef _ASM_PARISC_SCATTERLIST_H
#define _ASM_PARISC_SCATTERLIST_H

#include <asm/page.h>
#include <asm/types.h>

struct scatterlist {
#ifdef CONFIG_DEBUG_SG
	unsigned long sg_magic;
#endif
	unsigned long page_link;
	unsigned int offset;

	unsigned int length;

	/* an IOVA can be 64-bits on some PA-Risc platforms. */
	dma_addr_t iova;	/* I/O Virtual Address */
	__u32      iova_length; /* bytes mapped */
};

#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
#define sg_dma_address(sg) ((sg)->iova)
#define sg_dma_len(sg)     ((sg)->iova_length)

#define ISA_DMA_THRESHOLD (~0UL)

#endif /* _ASM_PARISC_SCATTERLIST_H */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-17 02:20:36 +04:00			`#ifndef _ASM_PARISC_SCATTERLIST_H`
			`#define _ASM_PARISC_SCATTERLIST_H`

			`#include <asm/page.h>`
PCI: scatterlist.h needs types.h Most architectures' scatterlist.h use the type dma_addr_t, but omit to include <asm/types.h> which defines it. This could lead to build failures, so let's add the missing includes. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 2007-03-06 13:45:12 +03:00			`#include <asm/types.h>`
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-17 02:20:36 +04:00
			`struct scatterlist {`
Add CONFIG_DEBUG_SG sg validation Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> 2007-10-22 22:01:06 +04:00			`#ifdef CONFIG_DEBUG_SG`
			`unsigned long sg_magic;`
			`#endif`
Change table chaining layout Change the page member of the scatterlist structure to be an unsigned long, and encode more stuff in the lower bits: - Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located at sg + 1. - Bit 0 set: this is a chain entry, the next real entry is at ->page_link with the two low bits masked off. - Bit 1 set: this is the final entry in the sg entry. sg_next() will return NULL when passed such an entry. It's thus important that sg table users use the proper accessors to get and set the page member. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> 2007-10-22 21:57:20 +04:00			`unsigned long page_link;`
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-17 02:20:36 +04:00			`unsigned int offset;`

			`unsigned int length;`

			`/* an IOVA can be 64-bits on some PA-Risc platforms. */`
			`dma_addr_t iova; /* I/O Virtual Address */`
			`__u32 iova_length; /* bytes mapped */`
			`};`

parisc: fix sg_page() fallout arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_map_sg': arch/parisc/kernel/pci-dma.c:487: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_unmap_sg': arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_cpu': arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_device': arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page' Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com> 2007-10-23 11:30:28 +04:00			`#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))`
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-17 02:20:36 +04:00			`#define sg_dma_address(sg) ((sg)->iova)`
			`#define sg_dma_len(sg) ((sg)->iova_length)`

			`#define ISA_DMA_THRESHOLD (~0UL)`

			`#endif /* _ASM_PARISC_SCATTERLIST_H */`