![Tejun Heo](/assets/img/avatar_default.png)
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
596 lines
16 KiB
C
596 lines
16 KiB
C
/*
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** PARISC 1.1 Dynamic DMA mapping support.
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** This implementation is for PA-RISC platforms that do not support
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** I/O TLBs (aka DMA address translation hardware).
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** See Documentation/PCI/PCI-DMA-mapping.txt for interface definitions.
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**
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** (c) Copyright 1999,2000 Hewlett-Packard Company
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** (c) Copyright 2000 Grant Grundler
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** (c) Copyright 2000 Philipp Rumpf <prumpf@tux.org>
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** (c) Copyright 2000 John Marvin
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**
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** "leveraged" from 2.3.47: arch/ia64/kernel/pci-dma.c.
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** (I assume it's from David Mosberger-Tang but there was no Copyright)
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**
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** AFAIK, all PA7100LC and PA7300LC platforms can use this code.
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**
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** - ggg
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*/
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#include <linux/init.h>
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#include <linux/gfp.h>
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#include <linux/mm.h>
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#include <linux/pci.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/scatterlist.h>
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#include <asm/cacheflush.h>
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#include <asm/dma.h> /* for DMA_CHUNK_SIZE */
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#include <asm/io.h>
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#include <asm/page.h> /* get_order */
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#include <asm/pgalloc.h>
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#include <asm/uaccess.h>
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#include <asm/tlbflush.h> /* for purge_tlb_*() macros */
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static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
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static unsigned long pcxl_used_bytes __read_mostly = 0;
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static unsigned long pcxl_used_pages __read_mostly = 0;
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extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
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static spinlock_t pcxl_res_lock;
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static char *pcxl_res_map;
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static int pcxl_res_hint;
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static int pcxl_res_size;
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#ifdef DEBUG_PCXL_RESOURCE
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#define DBG_RES(x...) printk(x)
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#else
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#define DBG_RES(x...)
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#endif
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/*
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** Dump a hex representation of the resource map.
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*/
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#ifdef DUMP_RESMAP
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static
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void dump_resmap(void)
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{
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u_long *res_ptr = (unsigned long *)pcxl_res_map;
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u_long i = 0;
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printk("res_map: ");
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for(; i < (pcxl_res_size / sizeof(unsigned long)); ++i, ++res_ptr)
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printk("%08lx ", *res_ptr);
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printk("\n");
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}
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#else
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static inline void dump_resmap(void) {;}
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#endif
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static int pa11_dma_supported( struct device *dev, u64 mask)
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{
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return 1;
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}
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static inline int map_pte_uncached(pte_t * pte,
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unsigned long vaddr,
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unsigned long size, unsigned long *paddr_ptr)
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{
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unsigned long end;
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unsigned long orig_vaddr = vaddr;
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vaddr &= ~PMD_MASK;
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end = vaddr + size;
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if (end > PMD_SIZE)
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end = PMD_SIZE;
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do {
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unsigned long flags;
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if (!pte_none(*pte))
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printk(KERN_ERR "map_pte_uncached: page already exists\n");
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set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
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purge_tlb_start(flags);
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pdtlb_kernel(orig_vaddr);
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purge_tlb_end(flags);
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vaddr += PAGE_SIZE;
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orig_vaddr += PAGE_SIZE;
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(*paddr_ptr) += PAGE_SIZE;
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pte++;
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} while (vaddr < end);
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return 0;
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}
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static inline int map_pmd_uncached(pmd_t * pmd, unsigned long vaddr,
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unsigned long size, unsigned long *paddr_ptr)
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{
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unsigned long end;
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unsigned long orig_vaddr = vaddr;
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vaddr &= ~PGDIR_MASK;
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end = vaddr + size;
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if (end > PGDIR_SIZE)
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end = PGDIR_SIZE;
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do {
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pte_t * pte = pte_alloc_kernel(pmd, vaddr);
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if (!pte)
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return -ENOMEM;
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if (map_pte_uncached(pte, orig_vaddr, end - vaddr, paddr_ptr))
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return -ENOMEM;
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vaddr = (vaddr + PMD_SIZE) & PMD_MASK;
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orig_vaddr += PMD_SIZE;
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pmd++;
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} while (vaddr < end);
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return 0;
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}
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static inline int map_uncached_pages(unsigned long vaddr, unsigned long size,
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unsigned long paddr)
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{
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pgd_t * dir;
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unsigned long end = vaddr + size;
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dir = pgd_offset_k(vaddr);
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do {
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pmd_t *pmd;
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pmd = pmd_alloc(NULL, dir, vaddr);
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if (!pmd)
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return -ENOMEM;
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if (map_pmd_uncached(pmd, vaddr, end - vaddr, &paddr))
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return -ENOMEM;
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vaddr = vaddr + PGDIR_SIZE;
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dir++;
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} while (vaddr && (vaddr < end));
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return 0;
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}
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static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
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unsigned long size)
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{
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pte_t * pte;
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unsigned long end;
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unsigned long orig_vaddr = vaddr;
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if (pmd_none(*pmd))
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return;
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if (pmd_bad(*pmd)) {
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pmd_ERROR(*pmd);
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pmd_clear(pmd);
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return;
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}
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pte = pte_offset_map(pmd, vaddr);
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vaddr &= ~PMD_MASK;
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end = vaddr + size;
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if (end > PMD_SIZE)
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end = PMD_SIZE;
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do {
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unsigned long flags;
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pte_t page = *pte;
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pte_clear(&init_mm, vaddr, pte);
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purge_tlb_start(flags);
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pdtlb_kernel(orig_vaddr);
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purge_tlb_end(flags);
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vaddr += PAGE_SIZE;
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orig_vaddr += PAGE_SIZE;
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pte++;
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if (pte_none(page) || pte_present(page))
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continue;
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printk(KERN_CRIT "Whee.. Swapped out page in kernel page table\n");
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} while (vaddr < end);
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}
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static inline void unmap_uncached_pmd(pgd_t * dir, unsigned long vaddr,
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unsigned long size)
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{
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pmd_t * pmd;
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unsigned long end;
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unsigned long orig_vaddr = vaddr;
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if (pgd_none(*dir))
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return;
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if (pgd_bad(*dir)) {
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pgd_ERROR(*dir);
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pgd_clear(dir);
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return;
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}
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pmd = pmd_offset(dir, vaddr);
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vaddr &= ~PGDIR_MASK;
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end = vaddr + size;
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if (end > PGDIR_SIZE)
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end = PGDIR_SIZE;
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do {
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unmap_uncached_pte(pmd, orig_vaddr, end - vaddr);
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vaddr = (vaddr + PMD_SIZE) & PMD_MASK;
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orig_vaddr += PMD_SIZE;
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pmd++;
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} while (vaddr < end);
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}
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static void unmap_uncached_pages(unsigned long vaddr, unsigned long size)
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{
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pgd_t * dir;
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unsigned long end = vaddr + size;
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dir = pgd_offset_k(vaddr);
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do {
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unmap_uncached_pmd(dir, vaddr, end - vaddr);
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vaddr = vaddr + PGDIR_SIZE;
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dir++;
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} while (vaddr && (vaddr < end));
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}
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#define PCXL_SEARCH_LOOP(idx, mask, size) \
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for(; res_ptr < res_end; ++res_ptr) \
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{ \
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if(0 == ((*res_ptr) & mask)) { \
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*res_ptr |= mask; \
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idx = (int)((u_long)res_ptr - (u_long)pcxl_res_map); \
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pcxl_res_hint = idx + (size >> 3); \
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goto resource_found; \
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} \
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}
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#define PCXL_FIND_FREE_MAPPING(idx, mask, size) { \
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u##size *res_ptr = (u##size *)&(pcxl_res_map[pcxl_res_hint & ~((size >> 3) - 1)]); \
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u##size *res_end = (u##size *)&pcxl_res_map[pcxl_res_size]; \
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PCXL_SEARCH_LOOP(idx, mask, size); \
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res_ptr = (u##size *)&pcxl_res_map[0]; \
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PCXL_SEARCH_LOOP(idx, mask, size); \
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}
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unsigned long
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pcxl_alloc_range(size_t size)
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{
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int res_idx;
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u_long mask, flags;
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unsigned int pages_needed = size >> PAGE_SHIFT;
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mask = (u_long) -1L;
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mask >>= BITS_PER_LONG - pages_needed;
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DBG_RES("pcxl_alloc_range() size: %d pages_needed %d pages_mask 0x%08lx\n",
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size, pages_needed, mask);
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spin_lock_irqsave(&pcxl_res_lock, flags);
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if(pages_needed <= 8) {
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PCXL_FIND_FREE_MAPPING(res_idx, mask, 8);
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} else if(pages_needed <= 16) {
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PCXL_FIND_FREE_MAPPING(res_idx, mask, 16);
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} else if(pages_needed <= 32) {
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PCXL_FIND_FREE_MAPPING(res_idx, mask, 32);
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} else {
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panic("%s: pcxl_alloc_range() Too many pages to map.\n",
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__FILE__);
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}
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dump_resmap();
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panic("%s: pcxl_alloc_range() out of dma mapping resources\n",
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__FILE__);
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resource_found:
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DBG_RES("pcxl_alloc_range() res_idx %d mask 0x%08lx res_hint: %d\n",
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res_idx, mask, pcxl_res_hint);
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pcxl_used_pages += pages_needed;
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pcxl_used_bytes += ((pages_needed >> 3) ? (pages_needed >> 3) : 1);
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spin_unlock_irqrestore(&pcxl_res_lock, flags);
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dump_resmap();
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/*
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** return the corresponding vaddr in the pcxl dma map
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*/
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return (pcxl_dma_start + (res_idx << (PAGE_SHIFT + 3)));
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}
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#define PCXL_FREE_MAPPINGS(idx, m, size) \
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u##size *res_ptr = (u##size *)&(pcxl_res_map[(idx) + (((size >> 3) - 1) & (~((size >> 3) - 1)))]); \
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/* BUG_ON((*res_ptr & m) != m); */ \
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*res_ptr &= ~m;
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/*
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** clear bits in the pcxl resource map
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*/
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static void
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pcxl_free_range(unsigned long vaddr, size_t size)
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{
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u_long mask, flags;
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unsigned int res_idx = (vaddr - pcxl_dma_start) >> (PAGE_SHIFT + 3);
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unsigned int pages_mapped = size >> PAGE_SHIFT;
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mask = (u_long) -1L;
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mask >>= BITS_PER_LONG - pages_mapped;
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DBG_RES("pcxl_free_range() res_idx: %d size: %d pages_mapped %d mask 0x%08lx\n",
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res_idx, size, pages_mapped, mask);
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spin_lock_irqsave(&pcxl_res_lock, flags);
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if(pages_mapped <= 8) {
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PCXL_FREE_MAPPINGS(res_idx, mask, 8);
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} else if(pages_mapped <= 16) {
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PCXL_FREE_MAPPINGS(res_idx, mask, 16);
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} else if(pages_mapped <= 32) {
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PCXL_FREE_MAPPINGS(res_idx, mask, 32);
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} else {
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panic("%s: pcxl_free_range() Too many pages to unmap.\n",
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__FILE__);
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}
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pcxl_used_pages -= (pages_mapped ? pages_mapped : 1);
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pcxl_used_bytes -= ((pages_mapped >> 3) ? (pages_mapped >> 3) : 1);
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spin_unlock_irqrestore(&pcxl_res_lock, flags);
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dump_resmap();
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}
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static int proc_pcxl_dma_show(struct seq_file *m, void *v)
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{
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#if 0
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u_long i = 0;
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unsigned long *res_ptr = (u_long *)pcxl_res_map;
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#endif
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unsigned long total_pages = pcxl_res_size << 3; /* 8 bits per byte */
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seq_printf(m, "\nDMA Mapping Area size : %d bytes (%ld pages)\n",
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PCXL_DMA_MAP_SIZE, total_pages);
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seq_printf(m, "Resource bitmap : %d bytes\n", pcxl_res_size);
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seq_puts(m, " total: free: used: % used:\n");
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seq_printf(m, "blocks %8d %8ld %8ld %8ld%%\n", pcxl_res_size,
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pcxl_res_size - pcxl_used_bytes, pcxl_used_bytes,
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(pcxl_used_bytes * 100) / pcxl_res_size);
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seq_printf(m, "pages %8ld %8ld %8ld %8ld%%\n", total_pages,
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total_pages - pcxl_used_pages, pcxl_used_pages,
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(pcxl_used_pages * 100 / total_pages));
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#if 0
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seq_puts(m, "\nResource bitmap:");
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for(; i < (pcxl_res_size / sizeof(u_long)); ++i, ++res_ptr) {
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if ((i & 7) == 0)
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seq_puts(m,"\n ");
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seq_printf(m, "%s %08lx", buf, *res_ptr);
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}
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#endif
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seq_putc(m, '\n');
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return 0;
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}
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static int proc_pcxl_dma_open(struct inode *inode, struct file *file)
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{
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return single_open(file, proc_pcxl_dma_show, NULL);
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}
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static const struct file_operations proc_pcxl_dma_ops = {
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.owner = THIS_MODULE,
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.open = proc_pcxl_dma_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init
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pcxl_dma_init(void)
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{
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if (pcxl_dma_start == 0)
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return 0;
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spin_lock_init(&pcxl_res_lock);
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pcxl_res_size = PCXL_DMA_MAP_SIZE >> (PAGE_SHIFT + 3);
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pcxl_res_hint = 0;
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pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
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get_order(pcxl_res_size));
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memset(pcxl_res_map, 0, pcxl_res_size);
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proc_gsc_root = proc_mkdir("gsc", NULL);
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if (!proc_gsc_root)
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printk(KERN_WARNING
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"pcxl_dma_init: Unable to create gsc /proc dir entry\n");
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else {
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struct proc_dir_entry* ent;
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ent = proc_create("pcxl_dma", 0, proc_gsc_root,
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&proc_pcxl_dma_ops);
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if (!ent)
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printk(KERN_WARNING
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"pci-dma.c: Unable to create pcxl_dma /proc entry.\n");
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}
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return 0;
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}
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__initcall(pcxl_dma_init);
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static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
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{
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unsigned long vaddr;
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unsigned long paddr;
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int order;
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order = get_order(size);
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size = 1 << (order + PAGE_SHIFT);
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vaddr = pcxl_alloc_range(size);
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paddr = __get_free_pages(flag, order);
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flush_kernel_dcache_range(paddr, size);
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paddr = __pa(paddr);
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map_uncached_pages(vaddr, size, paddr);
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*dma_handle = (dma_addr_t) paddr;
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#if 0
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/* This probably isn't needed to support EISA cards.
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** ISA cards will certainly only support 24-bit DMA addressing.
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** Not clear if we can, want, or need to support ISA.
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*/
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if (!dev || *dev->coherent_dma_mask < 0xffffffff)
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gfp |= GFP_DMA;
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#endif
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return (void *)vaddr;
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}
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static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
|
|
{
|
|
int order;
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|
|
|
order = get_order(size);
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|
size = 1 << (order + PAGE_SHIFT);
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|
unmap_uncached_pages((unsigned long)vaddr, size);
|
|
pcxl_free_range((unsigned long)vaddr, size);
|
|
free_pages((unsigned long)__va(dma_handle), order);
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|
}
|
|
|
|
static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t size, enum dma_data_direction direction)
|
|
{
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
flush_kernel_dcache_range((unsigned long) addr, size);
|
|
return virt_to_phys(addr);
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|
}
|
|
|
|
static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
|
|
{
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
if (direction == DMA_TO_DEVICE)
|
|
return;
|
|
|
|
/*
|
|
* For PCI_DMA_FROMDEVICE this flush is not necessary for the
|
|
* simple map/unmap case. However, it IS necessary if if
|
|
* pci_dma_sync_single_* has been called and the buffer reused.
|
|
*/
|
|
|
|
flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
|
|
return;
|
|
}
|
|
|
|
static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
|
|
{
|
|
int i;
|
|
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
for (i = 0; i < nents; i++, sglist++ ) {
|
|
unsigned long vaddr = sg_virt_addr(sglist);
|
|
sg_dma_address(sglist) = (dma_addr_t) virt_to_phys(vaddr);
|
|
sg_dma_len(sglist) = sglist->length;
|
|
flush_kernel_dcache_range(vaddr, sglist->length);
|
|
}
|
|
return nents;
|
|
}
|
|
|
|
static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
|
|
{
|
|
int i;
|
|
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
if (direction == DMA_TO_DEVICE)
|
|
return;
|
|
|
|
/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
|
|
|
|
for (i = 0; i < nents; i++, sglist++ )
|
|
flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
|
|
return;
|
|
}
|
|
|
|
static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
|
|
{
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
|
|
}
|
|
|
|
static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
|
|
{
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
|
|
}
|
|
|
|
static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
|
|
{
|
|
int i;
|
|
|
|
/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
|
|
|
|
for (i = 0; i < nents; i++, sglist++ )
|
|
flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
|
|
}
|
|
|
|
static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
|
|
{
|
|
int i;
|
|
|
|
/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
|
|
|
|
for (i = 0; i < nents; i++, sglist++ )
|
|
flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
|
|
}
|
|
|
|
struct hppa_dma_ops pcxl_dma_ops = {
|
|
.dma_supported = pa11_dma_supported,
|
|
.alloc_consistent = pa11_dma_alloc_consistent,
|
|
.alloc_noncoherent = pa11_dma_alloc_consistent,
|
|
.free_consistent = pa11_dma_free_consistent,
|
|
.map_single = pa11_dma_map_single,
|
|
.unmap_single = pa11_dma_unmap_single,
|
|
.map_sg = pa11_dma_map_sg,
|
|
.unmap_sg = pa11_dma_unmap_sg,
|
|
.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
|
|
.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
|
|
.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
|
|
.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
|
|
};
|
|
|
|
static void *fail_alloc_consistent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t flag)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t flag)
|
|
{
|
|
void *addr;
|
|
|
|
addr = (void *)__get_free_pages(flag, get_order(size));
|
|
if (addr)
|
|
*dma_handle = (dma_addr_t)virt_to_phys(addr);
|
|
|
|
return addr;
|
|
}
|
|
|
|
static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
|
|
void *vaddr, dma_addr_t iova)
|
|
{
|
|
free_pages((unsigned long)vaddr, get_order(size));
|
|
return;
|
|
}
|
|
|
|
struct hppa_dma_ops pcx_dma_ops = {
|
|
.dma_supported = pa11_dma_supported,
|
|
.alloc_consistent = fail_alloc_consistent,
|
|
.alloc_noncoherent = pa11_dma_alloc_noncoherent,
|
|
.free_consistent = pa11_dma_free_noncoherent,
|
|
.map_single = pa11_dma_map_single,
|
|
.unmap_single = pa11_dma_unmap_single,
|
|
.map_sg = pa11_dma_map_sg,
|
|
.unmap_sg = pa11_dma_unmap_sg,
|
|
.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
|
|
.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
|
|
.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
|
|
.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
|
|
};
|