linux/arch/powerpc/platforms
Alistair Popple 3182215dd0 powerpc/powernv/npu: Remove NPU DMA ops
The NPU IOMMU is setup to mirror the parent PCIe device IOMMU
setup. Therefore it does not make sense to call dma operations such as
dma_map_page(), etc. directly on these devices. The existing dma_ops
simply print a warning if they are ever called, however this is
unnecessary and the warnings are likely to go unnoticed.

It is instead simpler to remove these operations and let the generic
DMA code print warnings (eg. via a NULL pointer deref) in cases of
buggy drivers attempting dma operations on NVLink devices.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-11-05 16:05:22 +11:00
..
4xx powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
8xx powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
40x powerpc: PCI_MSI needs PCI 2018-11-02 00:15:25 +09:00
44x powerpc: PCI_MSI needs PCI 2018-11-02 00:15:25 +09:00
52xx powerpc/Makefiles: Convert ifeq to ifdef where possible 2018-08-08 00:32:36 +10:00
82xx powerpc: remove redundant 'default n' from Kconfig-s 2018-10-13 22:21:25 +11:00
83xx powerpc: remove retired sbc834x support 2018-05-03 22:32:30 +10:00
85xx powerpc: don't use ioremap_prot() nor __ioremap() unless really needed. 2018-10-14 18:04:09 +11:00
86xx powerpc: Use pr_warn instead of pr_warning 2017-12-04 11:54:34 +11:00
512x powerpc: Use pr_warn instead of pr_warning 2017-12-04 11:54:34 +11:00
amigaone License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cell Merge branch 'akpm' (patches from Andrew) 2018-10-26 19:33:41 -07:00
chrp chrp/nvram.c: add MODULE_LICENSE() 2018-07-19 14:38:46 +10:00
embedded6xx powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
maple powerpc: remove redundant 'default n' from Kconfig-s 2018-10-13 22:21:25 +11:00
pasemi memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc* 2018-10-31 08:54:15 -07:00
powermac memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
powernv powerpc/powernv/npu: Remove NPU DMA ops 2018-11-05 16:05:22 +11:00
ps3 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
pseries powerpc fixes for 4.20 #2 2018-11-02 09:19:35 -07:00
Kconfig powerpc: remove redundant 'default n' from Kconfig-s 2018-10-13 22:21:25 +11:00
Kconfig.cputype powerpc: remove redundant 'default n' from Kconfig-s 2018-10-13 22:21:25 +11:00
Makefile powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
fsl_uli1575.c of/irq: Refactor interrupt-map parsing 2013-10-24 11:43:04 +01:00