Merge branch 'fixes-rc1' into omap-for-v4.2/fixes

Merge tag 'v4.2-rc1' into patchwork

Linux 4.2-rc1

* tag 'v4.2-rc1': (12415 commits)
Linux 4.2-rc1
bluetooth: fix list handling
9p: cope with bogus responses from server in p9_client_{read,wri

Merge tag 'v4.2-rc1' into patchwork

Linux 4.2-rc1

* tag 'v4.2-rc1': (12415 commits)
Linux 4.2-rc1
bluetooth: fix list handling
9p: cope with bogus responses from server in p9_client_{read,write}
p9_client_write(): avoid double p9_free_req()
9p: forgetting to cancel request on interrupted zero-copy RPC
dax: bdev_direct_access() may sleep
block: Add support for DAX reads/writes to block devices
dax: Use copy_from_iter_nocache
dax: Add block size note to documentation
NTB: Add split BAR output for debugfs stats
NTB: Change WARN_ON_ONCE to pr_warn_once on unsafe
NTB: Print driver name and version in module init
NTB: Increase transport MTU to 64k from 16k
NTB: Rename Intel code names to platform names
NTB: Default to CPU memcpy for performance
NTB: Improve performance with write combining
NTB: Use NUMA memory in Intel driver
NTB: Use NUMA memory and DMA chan in transport
NTB: Rate limit ntb_qp_link_work
NTB: Add tool test client
...

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cxl/vphb.c: Use phb pointer after NULL check

static Anlaysis detected below error:-
(error) Possible null pointer dereference: phb

So, Use phb after NULL check.

Signed-off-by: Maninder Singh <mani

cxl/vphb.c: Use phb pointer after NULL check

static Anlaysis detected below error:-
(error) Possible null pointer dereference: phb

So, Use phb after NULL check.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Merge tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

- disable the 32-bit vdso when building LE, so we can build with a

Merge tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

- disable the 32-bit vdso when building LE, so we can build with a
64-bit only toolchain.

- EEH fixes from Gavin & Richard.

- enable the sys_kcmp syscall from Laurent.

- sysfs control for fastsleep workaround from Shreyas.

- expose OPAL events as an irq chip by Alistair.

- MSI ops moved to pci_controller_ops by Daniel.

- fix for kernel to userspace backtraces for perf from Anton.

- merge pseries and pseries_le defconfigs from Cyril.

- CXL in-kernel API from Mikey.

- OPAL prd driver from Jeremy.

- fix for DSCR handling & tests from Anshuman.

- Powernv flash mtd driver from Cyril.

- dynamic DMA Window support on powernv from Alexey.

- LLVM clang fixes & workarounds from Anton.

- reworked version of the patch to abort syscalls when transactional.

- fix the swap encoding to support 4TB, from Aneesh.

- various fixes as usual.

- Freescale updates from Scott: Highlights include more 8xx
optimizations, an e6500 hugetlb optimization, QMan device tree nodes,
t1024/t1023 support, and various fixes and cleanup.

* tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (180 commits)
cxl: Fix typo in debug print
cxl: Add CXL_KERNEL_API config option
powerpc/powernv: Fix wrong IOMMU table in pnv_ioda_setup_bus_dma()
powerpc/mm: Change the swap encoding in pte.
powerpc/mm: PTE_RPN_MAX is not used, remove the same
powerpc/tm: Abort syscalls in active transactions
powerpc/iommu/ioda2: Enable compile with IOV=on and IOMMU_API=off
powerpc/include: Add opal-prd to installed uapi headers
powerpc/powernv: fix construction of opal PRD messages
powerpc/powernv: Increase opal-irqchip initcall priority
powerpc: Make doorbell check preemption safe
powerpc/powernv: pnv_init_idle_states() should only run on powernv
macintosh/nvram: Remove as unused
powerpc: Don't use gcc specific options on clang
powerpc: Don't use -mno-strict-align on clang
powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it
powerpc: Only use -mabi=altivec if toolchain supports it
powerpc: Fix duplicate const clang warning in user access code
vfio: powerpc/spapr: Support Dynamic DMA windows
vfio: powerpc/spapr: Register memory and define IOMMU v2
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cxl: Reset default context for vPHB on release

When we release the device, we should also invalidate the default context.
With this cxl_get_context() will return null after removal.

Signed-off-by:

cxl: Reset default context for vPHB on release

When we release the device, we should also invalidate the default context.
With this cxl_get_context() will return null after removal.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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cxl: Add AFU virtual PHB and kernel API

This patch does two things.

Firstly it presents the Accelerator Function Unit (AFUs) behind the POWER
Service Layer (PSL) as PCI devices on a virtual PCI Hos

cxl: Add AFU virtual PHB and kernel API

This patch does two things.

Firstly it presents the Accelerator Function Unit (AFUs) behind the POWER
Service Layer (PSL) as PCI devices on a virtual PCI Host Bridge (vPHB). This
in in addition to the PSL being a PCI device itself.

As part of the Coherent Accelerator Interface Architecture (CAIA) AFUs can
provide an AFU configuration. This AFU configuration recored is architected to
be the same as a PCI config space.

This patch sets discovers the AFU configuration records, provides AFU config
space read/write functions to these configuration records. It then enumerates
the PCI bus. It also hooks in PCI ops where appropriate. It also destroys the
vPHB when the physical card is removed.

Secondly, it add an in kernel API for AFU to use CXL. AFUs must present a
driver that firstly binds as a PCI device. This PCI device can then be using
to do CXL specific operations (that can't sit in the PCI ops) using this API.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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