mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-29 03:01:39 -04:00
powerpc updates for 4.12 part 1.
Highlights include:
- Larger virtual address space on 64-bit server CPUs. By default we use a 128TB
virtual address space, but a process can request access to the full 512TB by
passing a hint to mmap().
- Support for the new Power9 "XIVE" interrupt controller.
- TLB flushing optimisations for the radix MMU on Power9.
- Support for CAPI cards on Power9, using the "Coherent Accelerator Interface
Architecture 2.0".
- The ability to configure the mmap randomisation limits at build and runtime.
- Several small fixes and cleanups to the kprobes code, as well as support for
KPROBES_ON_FTRACE.
- Major improvements to handling of system reset interrupts, correctly treating
them as NMIs, giving them a dedicated stack and using a new hypervisor call
to trigger them, all of which should aid debugging and robustness.
Many fixes and other minor enhancements.
Thanks to:
Alastair D'Silva, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Aneesh Kumar K.V, Anshuman Khandual, Anton Blanchard, Balbir Singh, Ben
Hutchings, Benjamin Herrenschmidt, Bhupesh Sharma, Chris Packham, Christian
Zigotzky, Christophe Leroy, Christophe Lombard, Daniel Axtens, David Gibson,
Gautham R. Shenoy, Gavin Shan, Geert Uytterhoeven, Guilherme G. Piccoli,
Hamish Martin, Hari Bathini, Kees Cook, Laurent Dufour, Madhavan Srinivasan,
Mahesh J Salgaonkar, Mahesh Salgaonkar, Masami Hiramatsu, Matt Brown, Matthew
R. Ochs, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran,
Pan Xinhui, Paul Mackerras, Rashmica Gupta, Russell Currey, Sukadev
Bhattiprolu, Thadeu Lima de Souza Cascardo, Tobin C. Harding, Tyrel Datwyler,
Uma Krishnan, Vaibhav Jain, Vipin K Parashar, Yang Shi.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=vSF3
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights include:
- Larger virtual address space on 64-bit server CPUs. By default we
use a 128TB virtual address space, but a process can request access
to the full 512TB by passing a hint to mmap().
- Support for the new Power9 "XIVE" interrupt controller.
- TLB flushing optimisations for the radix MMU on Power9.
- Support for CAPI cards on Power9, using the "Coherent Accelerator
Interface Architecture 2.0".
- The ability to configure the mmap randomisation limits at build and
runtime.
- Several small fixes and cleanups to the kprobes code, as well as
support for KPROBES_ON_FTRACE.
- Major improvements to handling of system reset interrupts,
correctly treating them as NMIs, giving them a dedicated stack and
using a new hypervisor call to trigger them, all of which should
aid debugging and robustness.
- Many fixes and other minor enhancements.
Thanks to: Alastair D'Silva, Alexey Kardashevskiy, Alistair Popple,
Andrew Donnellan, Aneesh Kumar K.V, Anshuman Khandual, Anton
Blanchard, Balbir Singh, Ben Hutchings, Benjamin Herrenschmidt,
Bhupesh Sharma, Chris Packham, Christian Zigotzky, Christophe Leroy,
Christophe Lombard, Daniel Axtens, David Gibson, Gautham R. Shenoy,
Gavin Shan, Geert Uytterhoeven, Guilherme G. Piccoli, Hamish Martin,
Hari Bathini, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mahesh J
Salgaonkar, Mahesh Salgaonkar, Masami Hiramatsu, Matt Brown, Matthew
R. Ochs, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Oliver
O'Halloran, Pan Xinhui, Paul Mackerras, Rashmica Gupta, Russell
Currey, Sukadev Bhattiprolu, Thadeu Lima de Souza Cascardo, Tobin C.
Harding, Tyrel Datwyler, Uma Krishnan, Vaibhav Jain, Vipin K Parashar,
Yang Shi"
* tag 'powerpc-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (214 commits)
powerpc/64s: Power9 has no LPCR[VRMASD] field so don't set it
powerpc/powernv: Fix TCE kill on NVLink2
powerpc/mm/radix: Drop support for CPUs without lockless tlbie
powerpc/book3s/mce: Move add_taint() later in virtual mode
powerpc/sysfs: Move #ifdef CONFIG_HOTPLUG_CPU out of the function body
powerpc/smp: Document irq enable/disable after migrating IRQs
powerpc/mpc52xx: Don't select user-visible RTAS_PROC
powerpc/powernv: Document cxl dependency on special case in pnv_eeh_reset()
powerpc/eeh: Clean up and document event handling functions
powerpc/eeh: Avoid use after free in eeh_handle_special_event()
cxl: Mask slice error interrupts after first occurrence
cxl: Route eeh events to all drivers in cxl_pci_error_detected()
cxl: Force context lock during EEH flow
powerpc/64: Allow CONFIG_RELOCATABLE if COMPILE_TEST
powerpc/xmon: Teach xmon oops about radix vectors
powerpc/mm/hash: Fix off-by-one in comment about kernel contexts ids
powerpc/pseries: Enable VFIO
powerpc/powernv: Fix iommu table size calculation hook for small tables
powerpc/powernv: Check kzalloc() return value in pnv_pci_table_alloc
powerpc: Add arch/powerpc/tools directory
...
This commit is contained in:
Linus Torvalds
commit
7246f60068
212 changed files with 8698 additions and 2790 deletions
|
|
@ -21,7 +21,7 @@ Introduction
|
|||
Hardware overview
|
||||
=================
|
||||
|
||||
POWER8 FPGA
|
||||
POWER8/9 FPGA
|
||||
+----------+ +---------+
|
||||
| | | |
|
||||
| CPU | | AFU |
|
||||
|
|
@ -34,7 +34,7 @@ Hardware overview
|
|||
| | CAPP |<------>| |
|
||||
+---+------+ PCIE +---------+
|
||||
|
||||
The POWER8 chip has a Coherently Attached Processor Proxy (CAPP)
|
||||
The POWER8/9 chip has a Coherently Attached Processor Proxy (CAPP)
|
||||
unit which is part of the PCIe Host Bridge (PHB). This is managed
|
||||
by Linux by calls into OPAL. Linux doesn't directly program the
|
||||
CAPP.
|
||||
|
|
@ -59,6 +59,17 @@ Hardware overview
|
|||
the fault. The context to which this fault is serviced is based on
|
||||
who owns that acceleration function.
|
||||
|
||||
POWER8 <-----> PSL Version 8 is compliant to the CAIA Version 1.0.
|
||||
POWER9 <-----> PSL Version 9 is compliant to the CAIA Version 2.0.
|
||||
This PSL Version 9 provides new features such as:
|
||||
* Interaction with the nest MMU on the P9 chip.
|
||||
* Native DMA support.
|
||||
* Supports sending ASB_Notify messages for host thread wakeup.
|
||||
* Supports Atomic operations.
|
||||
* ....
|
||||
|
||||
Cards with a PSL9 won't work on a POWER8 system and cards with a
|
||||
PSL8 won't work on a POWER9 system.
|
||||
|
||||
AFU Modes
|
||||
=========
|
||||
|
|
|
|||
|
|
@ -105,21 +105,21 @@ memory is held.
|
|||
|
||||
If there is no waiting dump data, then only the memory required
|
||||
to hold CPU state, HPTE region, boot memory dump and elfcore
|
||||
header, is reserved at the top of memory (see Fig. 1). This area
|
||||
is *not* released: this region will be kept permanently reserved,
|
||||
so that it can act as a receptacle for a copy of the boot memory
|
||||
content in addition to CPU state and HPTE region, in the case a
|
||||
crash does occur.
|
||||
header, is usually reserved at an offset greater than boot memory
|
||||
size (see Fig. 1). This area is *not* released: this region will
|
||||
be kept permanently reserved, so that it can act as a receptacle
|
||||
for a copy of the boot memory content in addition to CPU state
|
||||
and HPTE region, in the case a crash does occur.
|
||||
|
||||
o Memory Reservation during first kernel
|
||||
|
||||
Low memory Top of memory
|
||||
Low memory Top of memory
|
||||
0 boot memory size |
|
||||
| | |<--Reserved dump area -->|
|
||||
V V | Permanent Reservation V
|
||||
+-----------+----------/ /----------+---+----+-----------+----+
|
||||
| | |CPU|HPTE| DUMP |ELF |
|
||||
+-----------+----------/ /----------+---+----+-----------+----+
|
||||
| | |<--Reserved dump area -->| |
|
||||
V V | Permanent Reservation | V
|
||||
+-----------+----------/ /---+---+----+-----------+----+------+
|
||||
| | |CPU|HPTE| DUMP |ELF | |
|
||||
+-----------+----------/ /---+---+----+-----------+----+------+
|
||||
| ^
|
||||
| |
|
||||
\ /
|
||||
|
|
@ -135,12 +135,12 @@ crash does occur.
|
|||
0 boot memory size |
|
||||
| |<------------- Reserved dump area ----------- -->|
|
||||
V V V
|
||||
+-----------+----------/ /----------+---+----+-----------+----+
|
||||
| | |CPU|HPTE| DUMP |ELF |
|
||||
+-----------+----------/ /----------+---+----+-----------+----+
|
||||
| |
|
||||
V V
|
||||
Used by second /proc/vmcore
|
||||
+-----------+----------/ /---+---+----+-----------+----+------+
|
||||
| | |CPU|HPTE| DUMP |ELF | |
|
||||
+-----------+----------/ /---+---+----+-----------+----+------+
|
||||
| |
|
||||
V V
|
||||
Used by second /proc/vmcore
|
||||
kernel to boot
|
||||
Fig. 2
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue