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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2021-10-06 07:47:35 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-10-08 16:15:57 +0300 |
| commit | 3872731187141d5d0a5c4fb30007b8b9ec36a44d (patch) | |
| tree | 27137225324d6bfd83a49cb09a24b028e9fcc246 /arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c | |
| parent | e4e737bb5c170df6135a127739a9e6148ee3da82 (diff) | |
| download | linux-3872731187141d5d0a5c4fb30007b8b9ec36a44d.tar.xz | |
powerps/pseries/dma: Add support for 2M IOMMU page size
The upcoming PAPR spec adds a 2M page size, bit 23 right after 16G page
size in the "ibm,query-pe-dma-window" call.
This adds support for the new page size. Since the new page size is out
of sorted order, this changes the loop to not assume that shift[] is
sorted.
This has now been tested and is known to work on a pre-release version
of phyp.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Leonardo Bras <leobras.c@gmail.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211006044735.1114669-1-aik@ozlabs.ru
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c')
0 files changed, 0 insertions, 0 deletions