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| author | Christoph Hellwig <hch@lst.de> | 2020-10-17 16:15:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-18 09:27:10 -0700 |
| commit | 3e9a9e256b1e1e6e8f19faf76fa9c37578ae35ee (patch) | |
| tree | 241415091329c60aab89e0cca627c762567e6931 /mm/Kconfig | |
| parent | b944afc9d64ddf1b6a152c23ff86bf26e1fd430c (diff) | |
| download | linux-rpi-3e9a9e256b1e1e6e8f19faf76fa9c37578ae35ee.tar.gz linux-rpi-3e9a9e256b1e1e6e8f19faf76fa9c37578ae35ee.tar.bz2 linux-rpi-3e9a9e256b1e1e6e8f19faf76fa9c37578ae35ee.zip | |
mm: add a vmap_pfn function
Add a proper helper to remap PFNs into kernel virtual space so that
drivers don't have to abuse alloc_vm_area and open coded PTE manipulation
for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Link: https://lkml.kernel.org/r/20201002122204.1534411-4-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index c7f30f8b282b..d42423f884a7 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -816,6 +816,9 @@ config DEVICE_PRIVATE memory; i.e., memory that is only accessible from the device (or group of devices). You likely also want to select HMM_MIRROR. +config VMAP_PFN + bool + config FRAME_VECTOR bool |