AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/powerpc/platforms/pseries
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Alexey Kardashevskiy 1a047cc7e5 powerpc/pseries/dma: Enable SWIOTLB 
So far the pseries platforms has always been using IOMMU making
SWIOTLB unnecessary. Now we want secure guests which means devices can
only access certain areas of guest physical memory; we are going to
use SWIOTLB for this purpose.

This allows SWIOTLB for pseries. By default there is no change in
behavior.

This enables SWIOTLB when the "swiotlb" kernel parameter is set to
"force".

With the SWIOTLB enabled, the kernel creates a directly mapped DMA
window (using the usual DDW mechanism) and implements SWIOTLB on top
of that.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-07-03 15:19:35 +10:00
..
cmm.c mm: convert totalram_pages and totalhigh_pages variables to atomic 2018-12-28 12:11:47 -08:00
dlpar.c powerpc/pseries: avoid blocking in irq when queuing hotplug events 2019-06-19 20:05:08 +10:00
dtl.c powerpc/pseries: Fix how we iterate over the DTL entries 2018-10-03 15:40:02 +10:00
eeh_pseries.c powerpc/eeh: Cleanup eeh_ops.wait_state() 2018-10-13 22:21:25 +11:00
event_sources.c powerpc/pseries: Use of_irq_get helper() in request_event_sources_irqs() 2018-10-03 15:40:01 +10:00
firmware.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
hotplug-cpu.c powerpc/pseries: Perform full re-add of CPU for topology update post-migration 2019-01-30 23:28:56 +11:00
hotplug-memory.c powerpc/pseries: Fix oops in hotplug memory notifier 2019-06-14 15:36:33 +10:00
hvCall_inst.c powerpc/pseries: hcall_exit tracepoint retval should be signed 2018-05-10 23:17:43 +10:00
hvCall.S jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
hvconsole.c powerpc/pseries/hvconsole: Fix stack overread via udbg 2019-06-14 15:35:53 +10:00
hvcserver.c powerpc/pseries/hvcserver: don't memset pi_buff if it is null 2015-10-09 08:03:03 +11:00
ibmebus.c pseries: ibmebus.c: convert to use BUS_ATTR_WO 2019-01-22 14:25:26 +01:00
io_event_irq.c powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
iommu.c powerpc/pseries/iommu: Fix set but not used values 2019-04-20 22:02:26 +10:00
Kconfig powerpc/pseries/dma: Enable SWIOTLB 2019-07-03 15:19:35 +10:00
kexec.c powerpc/xive: Remove xive_kexec_teardown_cpu() 2018-08-07 21:49:28 +10:00
lpar.c powerpc/mm: move warning from resize_hpt_for_hotplug() 2019-04-20 22:02:26 +10:00
lparcfg.c powerpc/pseries: export timebase register sample in lparcfg 2019-02-22 00:10:15 +11:00
Makefile powerpc/pseries: Add driver for PAPR SCM regions 2018-10-19 00:56:17 +11:00
mobility.c powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration 2019-06-15 16:52:37 +10:00
msi.c powerpc/eeh: Cleanup list_head field names 2018-10-13 22:21:25 +11:00
nvram.c powerpc: Adopt nvram module for PPC64 2019-01-22 10:21:45 +01:00
of_helpers.c pseries/drc-info: Search DRC properties for CPU indexes 2018-01-21 16:21:46 +11:00
of_helpers.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
offline_states.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
papr_scm.c device-dax for 5.1 2019-03-16 13:05:32 -07:00
pci_dlpar.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci.c powerpc/pseries: Fix build break due to pnv_npu2_init() 2019-01-15 21:27:47 +11:00
pmem.c powerpc/pseries/pmem: Fix a set but not used value 2019-04-20 22:02:26 +10:00
power.c powerpc/sparse: Include headers containing prototypes 2016-06-16 22:40:19 +10:00
pseries_energy.c powerpc/pseries/energy: Use OF accessor functions to read ibm,drc-indexes 2019-03-27 10:40:09 +11:00
pseries.h powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
ras.c powerpc/pseries: hwpoison the pages upon hitting UE 2019-04-20 22:02:35 +10:00
reconfig.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
scanlog.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
setup.c powerpc/pseries/dma: Enable SWIOTLB 2019-07-03 15:19:35 +10:00
smp.c Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
suspend.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
vio.c powerpc: remove device_to_mask() 2019-07-03 15:19:35 +10:00