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linux-stable/arch/powerpc/platforms
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Alistair Popple 419dbd5e1f powerpc/powernv: Fix update of NVLink DMA mask 
The emulated NVLink PCI devices share the same IODA2 TCE tables but only
support a single TVT (instead of the normal two for PCI devices). This
requires the kernel to manually replace windows with either the bypass
or non-bypass window depending on what the driver has requested.

Unfortunately an incorrect optimisation was made in
pnv_pci_ioda_dma_set_mask() which caused updating of some NPU device PEs
to be skipped in certain configurations due to an incorrect assumption
that a NULL peer PE in the array indicated there were no more peers
present. This patch fixes the problem by ensuring all peer PEs are
updated.

Fixes: 5d2aa710e6 ("powerpc/powernv: Add support for Nvlink NPUs")
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-01-11 20:30:48 +11:00
..
8xx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
40x powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
44x powerpc/44x/Akebono: Remove select of IBM_EMAC_RGMII_WOL 2014-12-29 15:45:44 +11:00
52xx powerpc: Introduce the use of the managed version of kzalloc 2015-10-22 16:13:23 +02:00
82xx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
83xx powerpc: don't use module_init in non-modular 83xx suspend code 2015-06-16 14:12:29 -04:00
85xx Merge branch 'clock' into HEAD 2015-10-27 18:14:16 -05:00
86xx Merge branch 'clock' into HEAD 2015-10-27 18:14:16 -05:00
512x powerpc/512x: add LocalPlus Bus FIFO device driver 2015-10-22 15:19:40 +02:00
amigaone lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual Kconfig 2014-08-08 15:57:26 -07:00
cell powerpc/cell: Remove the Cell QPACE code 2015-12-14 20:41:50 +11:00
chrp genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
embedded6xx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
maple powerpc: Remove broken GregorianDay() 2015-12-16 12:54:04 +11:00
pasemi powerpc updates for 4.4 2015-11-05 23:38:43 -08:00
powermac powerpc: Add missing calls to va_end() 2015-12-17 23:23:22 +11:00
powernv powerpc/powernv: Fix update of NVLink DMA mask 2016-01-11 20:30:48 +11:00
ps3 powerpc updates for 4.4 2015-11-05 23:38:43 -08:00
pseries powerpc/pseries: Enable kernel CPU dlpar from sysfs 2015-12-17 22:41:03 +11:00
fsl_uli1575.c of/irq: Refactor interrupt-map parsing 2013-10-24 11:43:04 +01:00
Kconfig powerpc: Remove the celleb support 2015-04-07 17:15:13 +10:00
Kconfig.cputype powerpc/cell: Drop CONFIG_TUNE_CELL in favour of CONFIG_CELL_CPU 2015-10-19 19:51:18 +11:00
Makefile powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00