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53522982fc
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Andrew Donnellan 53522982fc powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 
Simplify the dma_get_required_mask call chain by moving it from pnv_phb to
pci_controller_ops, similar to commit 763d2d8df1 ("powerpc/powernv:
Move dma_set_mask from pnv_phb to pci_controller_ops").

Previous call chain:

  0) call dma_get_required_mask() (kernel/dma.c)
  1) call ppc_md.dma_get_required_mask, if it exists. On powernv, that
     points to pnv_dma_get_required_mask() (platforms/powernv/setup.c)
  2) device is PCI, therefore call pnv_pci_dma_get_required_mask()
     (platforms/powernv/pci.c)
  3) call phb->dma_get_required_mask if it exists
  4) it only exists in the ioda case, where it points to
       pnv_pci_ioda_dma_get_required_mask() (platforms/powernv/pci-ioda.c)

New call chain:

  0) call dma_get_required_mask() (kernel/dma.c)
  1) device is PCI, therefore call pci_controller_ops.dma_get_required_mask
     if it exists
  2) in the ioda case, that points to pnv_pci_ioda_dma_get_required_mask()
     (platforms/powernv/pci-ioda.c)

In the p5ioc2 case, the call chain remains the same -
dma_get_required_mask() does not find either a ppc_md call or
pci_controller_ops call, so it calls __dma_get_required_mask().

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-08-18 19:32:11 +10:00
..
boot Devicetree changes for v4.2 2015-07-01 19:40:18 -07:00
configs Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2015-06-19 17:23:48 +10:00
crypto crypto: powerpc/md5 - use md5 IV MD5_HX instead of their raw value 2015-05-18 12:20:20 +08:00
include powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
kernel powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
kvm The bulk of the changes here is for x86. And for once it's not 2015-06-24 09:36:49 -07:00
lib powerpc updates for 4.2 2015-06-24 08:46:32 -07:00
math-emu
mm powerpc/mm: Drop CONFIG_PPC_HAS_HASH_64K 2015-08-18 19:32:10 +10:00
net ppc: bpf: Add SKF_AD_CPU for ppc32 2015-02-20 15:19:43 -05:00
oprofile powerpc: Remove mtmsrd(), use existing mtmsr() 2015-07-13 15:47:28 +10:00
perf powerpc/perf: Change type of the bhrb_users variable 2015-07-27 14:31:44 +10:00
platforms powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
sysdev powerpc/4xx: Fix return value check in hsta_msi_probe() 2015-08-06 16:33:46 +10:00
xmon powerpc/xmon: Drop the valid variable completely in dump_segments() 2015-08-12 15:05:47 +10:00
Kconfig powerpc/mm: Drop CONFIG_PPC_HAS_HASH_64K 2015-08-18 19:32:10 +10:00
Kconfig.debug powerpc: Make STRICT_MM_TYPECHECKS a config option 2015-05-11 19:53:59 +10:00
Makefile powerpc: Don't use gcc specific options on clang 2015-06-11 17:33:05 +10:00
relocs_check.sh powerpc: Convert relocs_check to a shell script using grep 2015-03-23 14:47:39 +11:00