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Chris Wilson 3123698f50 drm/i915: Use mul_u32_u32() for 32b x 32b -> 64b result
As realised by commit 9e3d6223d2 ("math64, timers: Fix 32bit
mul_u64_u32_shr() and friends"), GCC does not always generate ideal code
for performing a 32b x 32b multiply returning a 64b result (i.e. where
we idiomatically use u64 result = (u64)x * (u32)x). This catches a
couple of instances in the display code using (u64)x * (u32)y.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20170913105154.2910-1-chris@chris-wilson.co.uk
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-09-13 13:27:20 +01:00
arch ummary: 2017-08-29 10:37:36 +10:00
block block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time 2017-08-09 20:24:38 -06:00
certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto crypto: authencesn - Fix digest_null crash 2017-07-18 17:01:11 +08:00
Documentation dt-bindings: exynos5433-decon: remove i80-if-timings property 2017-08-25 11:58:08 +09:00
drivers drm/i915: Use mul_u32_u32() for 32b x 32b -> 64b result 2017-09-13 13:27:20 +01:00
firmware firmware/Makefile: force recompilation if makefile changes 2017-05-08 17:15:10 -07:00
fs Some more NFS client bugfixes for 4.13 2017-08-11 13:54:09 -07:00
include lib/scatterlist: Introduce and export __sg_alloc_table_from_pages 2017-09-07 10:48:29 +01:00
init random: do not ignore early device randomness 2017-07-12 16:26:00 -07:00
ipc ipc: add missing container_of()s for randstruct 2017-08-02 17:16:12 -07:00
kernel mm: migrate: prevent racy access to tlb_flush_pending 2017-08-10 15:54:07 -07:00
lib lib/scatterlist: Introduce and export __sg_alloc_table_from_pages 2017-09-07 10:48:29 +01:00
mm rmap: do not call mmu_notifier_invalidate_page() under ptl 2017-08-10 15:54:07 -07:00
net packet: fix tp_reserve race in packet_set_ring 2017-08-10 09:52:12 -07:00
samples samples/bpf: fix bpf tunnel cleanup 2017-07-31 22:02:47 -07:00
scripts parse-maintainers: Move matching sections from MAINTAINERS 2017-08-08 11:16:14 -07:00
security Now that IPC and other changes have landed, enable manual markings for 2017-07-19 08:55:18 -07:00
sound drm: omapdrm: hdmi: Pass HDMI core version as integer to HDMI audio 2017-08-16 12:52:41 +03:00
tools tools/testing/scatterlist: Test new __sg_alloc_table_from_pages 2017-09-07 10:54:40 +01:00
usr ramfs: clarify help text that compression applies to ramfs as well as legacy ramdisk. 2017-07-06 16:24:30 -07:00
virt KVM/ARM Fixes for v4.13-rc4 2017-08-03 17:59:58 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: Add support to generate LLVM assembly files 2017-04-25 08:13:52 +09:00
.mailmap power supply and reset changes for the v4.12 series (part 2) 2017-05-12 12:02:21 -07:00
COPYING
CREDITS avr32: remove support for AVR32 architecture 2017-05-01 09:27:15 +02:00
Kbuild kbuild: Consolidate header generation from ASM offset information 2017-04-13 05:43:37 +09:00
Kconfig
MAINTAINERS Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-08-22 10:03:07 +10:00
Makefile Linux 4.13-rc5 2017-08-13 16:01:32 -07:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

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.