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Merge tag 'ccn/fixes-for-4.8-v2' of git://git.linaro.org/people/pawel.moll/linux into fixes

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Merge "bus: ARM CCN PMU driver updates" from Paweł Moll:

- Fixes and improvements for XP watchpoint and events handling
- Added missing condition checks for KVM-related exclusions
- Improved interrupt affinity handling
- Fix for hrtimer use in polling mode
- Event grouping implementation improvement

* tag 'ccn/fixes-for-4.8-v2' of git://git.linaro.org/people/pawel.moll/linux:
  bus: arm-ccn: make event groups reliable
  bus: arm-ccn: fix hrtimer registration
  bus: arm-ccn: fix PMU interrupt flags
  bus: arm-ccn: Add missing event attribute exclusions for host/guest
  bus: arm-ccn: Correct required arguments for XP PMU events
  bus: arm-ccn: Fix XP watchpoint settings bitmask
  bus: arm-ccn: Do not attempt to configure XPs for cycle counter
  bus: arm-ccn: Fix PMU handling of MN
This commit is contained in:
Arnd Bergmann
2016-09-02 16:11:14 +02:00
parent 982098a9f7 d662ed2e50
commit 7064f623c4
2 changed files with 89 additions and 39 deletions
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16
Documentation/arm/CCN.txt
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@@ -18,13 +18,17 @@ and config2 fields of the perf_event_attr structure. The "events"
directory provides configuration templates for all documented
events, that can be used with perf tool. For example "xp_valid_flit"
is an equivalent of "type=0x8,event=0x4". Other parameters must be
explicitly specified. For events originating from device, "node"
defines its index. All crosspoint events require "xp" (index),
"port" (device port number) and "vc" (virtual channel ID) and
"dir" (direction). Watchpoints (special "event" value 0xfe) also
require comparator values ("cmp_l" and "cmp_h") and "mask", being
index of the comparator mask.
explicitly specified.
For events originating from device, "node" defines its index.
Crosspoint PMU events require "xp" (index), "bus" (bus number)
and "vc" (virtual channel ID).
Crosspoint watchpoint-based events (special "event" value 0xfe)
require "xp" and "vc" as as above plus "port" (device port index),
"dir" (transmit/receive direction), comparator values ("cmp_l"
and "cmp_h") and "mask", being index of the comparator mask.
Masks are defined separately from the event description
(due to limited number of the config values) in the "cmp_mask"
directory, with first 8 configurable by user and additional