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Searched refs:zeropage (Results 1 – 9 of 9) sorted by relevance

/linux/arch/sh/boot/romimage/
H A DMakefile8 targets := vmlinux head.o zeropage.bin piggy.o
24 $(obj)/zeropage.bin: vmlinux FORCE
29 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/zeropage.bin arch/sh/boot/zImage FORCE
/linux/drivers/spi/
H A Dspi-ep93xx.c81 * @zeropage: dummy page used as RX buffer when only TX buffer is passed in by
95 void *zeropage; member
313 * because we are using @espi->zeropage to provide a zero RX buffer in ep93xx_spi_dma_prepare()
338 sg_set_page(sg, virt_to_page(espi->zeropage), in ep93xx_spi_dma_prepare()
578 espi->zeropage = (void *)get_zeroed_page(GFP_KERNEL); in ep93xx_spi_setup_dma()
579 if (!espi->zeropage) in ep93xx_spi_setup_dma()
600 free_page((unsigned long)espi->zeropage); in ep93xx_spi_setup_dma()
616 if (espi->zeropage) in ep93xx_spi_release_dma()
617 free_page((unsigned long)espi->zeropage); in ep93xx_spi_release_dma()
/linux/tools/testing/selftests/mm/
H A Duffd-stress.c50 static char *zeropage; variable
263 zeropage = area; in userfaultfd_stress()
264 bzero(zeropage, page_size); in userfaultfd_stress()
316 * next bounce, effectively leaving a zeropage in the in userfaultfd_stress()
H A Duffd-unit-tests.c897 if (uffdio_zeropage->zeropage != -EEXIST) in retry_uffdio_zeropage()
899 (int64_t)uffdio_zeropage->zeropage); in retry_uffdio_zeropage()
902 (int64_t)uffdio_zeropage->zeropage); in retry_uffdio_zeropage()
916 res = uffdio_zeropage.zeropage; in do_uffdio_zeropage()
918 /* real retval in ufdio_zeropage.zeropage */ in do_uffdio_zeropage()
936 * Registers a range with MISSING mode only for zeropage test. Return true
947 err("zeropage register fail"); in uffd_register_detect_zeropage()
1286 DEFINE_MMAP_CHANGING_TEST(zeropage, UFFDIO_ZEROPAGE, zeropage)
1456 * Note that _UFFDIO_ZEROPAGE is tested separately in the zeropage tes
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/linux/arch/parisc/include/asm/
H A Dpage.h175 #define PAGE0 ((struct zeropage *)absolute_pointer(__PAGE_OFFSET))
/linux/include/uapi/linux/
H A Duserfaultfd.h302 * "zeropage" is written by the ioctl and must be at the end:
305 __s64 zeropage; member
/linux/tools/include/uapi/linux/
H A Duserfaultfd.h302 * "zeropage" is written by the ioctl and must be at the end:
305 __s64 zeropage; member
/linux/arch/parisc/include/uapi/asm/
H A Dpdc.h395 struct zeropage { struct
397 vec_specialzeropage global() argument
399 vec_pow_failzeropage global() argument
401 vec_toczeropage global() argument
402 vec_toclenzeropage global() argument
404 vec_rendzzeropage global() argument
405 vec_pow_fail_flenzeropage global() argument
406 vec_pad0zeropage global() argument
407 vec_toc_hizeropage global() argument
408 vec_pad1zeropage global() argument
411 pad0zeropage global() argument
414 pad1zeropage global() argument
417 memc_contzeropage global() argument
418 memc_phsizezeropage global() argument
419 memc_adsizezeropage global() argument
420 mem_pdc_hizeropage global() argument
424 mem_booterrzeropage global() argument
425 mem_freezeropage global() argument
427 mem_hpazeropage global() argument
429 mem_pdczeropage global() argument
430 mem_10mseczeropage global() argument
434 imm_hpazeropage global() argument
435 imm_soft_bootzeropage global() argument
436 imm_spa_sizezeropage global() argument
437 imm_max_memzeropage global() argument
440 mem_conszeropage global() argument
441 mem_bootzeropage global() argument
442 mem_kbdzeropage global() argument
445 pad430zeropage global() argument
448 pad600zeropage global() argument
449 proc_stizeropage global() argument
450 pad608zeropage global() argument
/linux/fs/
H A Duserfaultfd.c1657 if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage))) in userfaultfd_zeropage()
1664 /* don't copy "zeropage" last field */ in userfaultfd_zeropage()
1683 if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage))) in userfaultfd_zeropage()