s390/qdio: avoid allocating the qdio_irq with GFP_DMA

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The qdio_irq contains only two fields that are directly exposed to the
HW (ccw and qib). And only the ccw needs to reside in 31-bit memory. So
allocate it separately, and remove the GFP_DMA constraint from the
qdio_irq allocation.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Julian Wiedmann 2021-08-24 09:37:06 +03:00 • committed by Heiko Carstens

parent bd3a025dd2

commit 718ce9e101

3 changed files with 23 additions and 14 deletions

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2

drivers/s390/cio/qdio.h

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34

drivers/s390/cio/qdio_main.c

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1

drivers/s390/cio/qdio_setup.c

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