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Filename Latest commit message Latest commit date
Chris Wilson 4900727d35 drm/i915/pmu: Reconstruct active state on starting busy-stats
We have a hole in our busy-stat accounting if the pmu is enabled during
a long running batch, the pmu will not start accumulating busy-time
until the next context switch. This then fails tests that are only
sampling a single batch.

v2: Count each active port just once (context in/out events are only on
the first and last assignment to a port).
v3: Avoid hardcoding knowledge of 2 submission ports

Fixes: 30e17b7847 ("drm/i915: Engine busy time tracking")
Testcase: igt/perf_pmu/busy-start
Testcase: igt/perf_pmu/busy-double-start
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180111073031.14614-1-chris@chris-wilson.co.uk
2018-01-11 14:57:27 +00:00
arch x86/gpu: add CFL to early quirks 2017-12-15 13:18:00 -08:00
block
certs
crypto
Documentation docs: fix, intel_guc_loader.c has been moved to intel_guc_fw.c 2017-12-12 16:24:05 +01:00
drivers drm/i915/pmu: Reconstruct active state on starting busy-stats 2018-01-11 14:57:27 +00:00
firmware
fs
include drm/i915/cfl: Adding more Coffee Lake PCI IDs. 2017-12-20 11:24:25 -08:00
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README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.