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Filename Latest commit message Latest commit date
John Stultz 114e6d48b8 ANDROID: arm64: dts: hikey960: Add CMA entry for ION/framebuffers
Add CMA entry, as the DRM driver requires phys contig
memory for framebuffers. These are normally allocated
out of ION by gralloc for the graphics framebuffer.

NOTE: On the 4gb boards, if we don't specify the address,
the cma region we use for the framebuffer and ion heap
may be placed in memory mapped above 32bits.

Due to addresses being masked to 32bits for DMA, this
resulted in crashes on newer 4gb boards.

Thus this patch forces CMA address to be lower in memory.

I've picked an address just past a previous CMA reserved
chunk, so we shouldn't be adding to any fragmentation.

Extra thanks to Ryan Grachek <ryan@edited.us> who
helped isolate the issue with the CMA buffers being over
the 32bit barrier.

Bug: 146450171
Change-Id: Ibb7ff1d85a9b93e41c440ffacf6a1ccf6aecb1ca
Signed-off-by: John Stultz <john.stultz@linaro.org>
2019-12-18 18:04:34 +00:00
arch ANDROID: arm64: dts: hikey960: Add CMA entry for ION/framebuffers 2019-12-18 18:04:34 +00:00
block This is the 5.4.4 stable release 2019-12-17 20:10:28 +01:00
certs PKCS#7: Refactor verify_pkcs7_signature() 2019-08-05 18:40:18 -04:00
crypto crypto: user - fix memory leak in crypto_reportstat 2019-12-13 08:43:11 +01:00
Documentation This is the 5.4.4 stable release 2019-12-17 20:10:28 +01:00
drivers This is the 5.4.5 stable release 2019-12-18 16:54:08 +01:00
fs This is the 5.4.4 stable release 2019-12-17 20:10:28 +01:00
include This is the 5.4.5 stable release 2019-12-18 16:54:08 +01:00
init ANDROID: add support for Clang's Control Flow Integrity (CFI) 2019-11-27 12:49:12 -08:00
ipc Merge 5.4-rc1-prelrease into android-mainline 2019-10-02 17:58:47 +02:00
kernel This is the 5.4.4 stable release 2019-12-17 20:10:28 +01:00
lib FROMLIST: vsprintf: Inline call to ptr_to_hashval 2019-12-17 19:53:55 +00:00
LICENSES
mm ANDROID: mm/memory.c: export mm_trace_rss_stat 2019-12-18 18:02:56 +00:00
net This is the 5.4.5 stable release 2019-12-18 16:54:08 +01:00
samples samples/bpf: fix build by setting HAVE_ATTR_TEST to zero 2019-10-31 21:39:15 +01:00
scripts ANDROID: kbuild: merge module sections with LTO 2019-12-10 05:58:01 +00:00
security FROMLIST: Add flags option to get xattr method paired to __vfs_getxattr 2019-11-05 13:50:57 -08:00
sound This is the 5.4.4 stable release 2019-12-17 20:10:28 +01:00
tools net/tls: Fix return values to avoid ENOTSUPP 2019-12-18 16:08:31 +01:00
usr kbuild: update compile-test header list for v5.4-rc2 2019-10-05 15:29:49 +09:00
virt KVM: arm/arm64: vgic: Don't rely on the wrong pending table 2019-12-13 08:43:00 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Revert "ANDROID: Revert "Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux"" 2019-11-13 10:14:45 +00:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
abi_gki_aarch64.xml ANDROID: update ABI for 5.4.5 2019-12-18 17:48:28 +01:00
abi_gki_aarch64_whitelist ANDROID: add initial ABI whitelist for android-5.4 2019-12-18 10:56:40 +00:00
build.config.aarch64 ANDROID: refactor build.config files to remove duplication 2019-08-30 14:55:29 +01:00
build.config.allmodconfig ANDROID: Don't base allmodconfig on gki_defconfig 2019-12-05 13:18:31 +00:00
build.config.allmodconfig.aarch64 ANDROID: create build.configs for allmodconfig 2019-09-04 15:49:40 +00:00
build.config.allmodconfig.x86_64 ANDROID: create build.configs for allmodconfig 2019-09-04 15:49:40 +00:00
build.config.common ANDROID: clang: update to 10.0.1 2019-11-27 12:49:08 -08:00
build.config.gki ANDROID: refactor build.config files to remove duplication 2019-08-30 14:55:29 +01:00
build.config.gki.aarch64 ANDROID: add initial ABI whitelist for android-5.4 2019-12-18 10:56:40 +00:00
build.config.gki.x86_64 ANDROID: refactor build.config files to remove duplication 2019-08-30 14:55:29 +01:00
build.config.x86_64 ANDROID: refactor build.config files to remove duplication 2019-08-30 14:55:29 +01:00
COPYING
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild kbuild: do not descend to ./Kbuild when cleaning 2019-08-21 21:03:58 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 14:28:14 -08:00
Makefile This is the 5.4.5 stable release 2019-12-18 16:54:08 +01:00
README
README.md ANDROID: Fix typo for FROMLIST: section 2019-10-29 20:31:07 +00:00

How do I submit patches to Android Common Kernels

  1. BEST: Make all of your changes to upstream Linux. If appropriate, backport to the stable releases. These patches will be merged automatically in the corresponding common kernels. If the patch is already in upstream Linux, post a backport of the patch that conforms to the patch requirements below.

  2. LESS GOOD: Develop your patches out-of-tree (from an upstream Linux point-of-view). Unless these are fixing an Android-specific bug, these are very unlikely to be accepted unless they have been coordinated with kernel-team@android.com. If you want to proceed, post a patch that conforms to the patch requirements below.

Common Kernel patch requirements

  • All patches must conform to the Linux kernel coding standards and pass script/checkpatch.pl
  • Patches shall not break gki_defconfig or allmodconfig builds for arm, arm64, x86, x86_64 architectures (see https://source.android.com/setup/build/building-kernels)
  • If the patch is not merged from an upstream branch, the subject must be tagged with the type of patch: UPSTREAM:, BACKPORT:, FROMGIT:, FROMLIST:, or ANDROID:.
  • All patches must have a Change-Id: tag (see https://gerrit-review.googlesource.com/Documentation/user-changeid.html)
  • If an Android bug has been assigned, there must be a Bug: tag.
  • All patches must have a Signed-off-by: tag by the author and the submitter

Additional requirements are listed below based on patch type

Requirements for backports from mainline Linux: UPSTREAM:, BACKPORT:

  • If the patch is a cherry-pick from Linux mainline with no changes at all
    • tag the patch subject with UPSTREAM:.
    • add upstream commit information with a (cherry-picked from ...) line
    • Example:
      • if the upstream commit message is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
    - then Joe Smith would upload the patch for the common kernel as
        UPSTREAM: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry-picked from c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch requires any changes from the upstream version, tag the patch with BACKPORT: instead of UPSTREAM:.
    • use the same tags as UPSTREAM:
    • add comments about the changes under the (cherry-picked from ...) line
    • Example:
        BACKPORT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry-picked from c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        [ Resolved minor conflict in drivers/foo/bar.c ]
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for other backports: FROMGIT:, FROMLIST:,

  • If the patch has been merged into an upstream maintainer tree, but has not yet been merged into Linux mainline
    • tag the patch subject with FROMGIT:
    • add info on where the patch came from as (cherry picked from commit <sha1> <repo> <branch>). This must be a stable maintainer branch (not rebased, so don't use linux-next for example).
    • if changes were required, use BACKPORT: FROMGIT:
    • Example:
      • if the commit message in the maintainer tree is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
    - then Joe Smith would upload the patch for the common kernel as
        FROMGIT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        (cherry picked from commit 878a2fd9de10b03d11d2f622250285c7e63deace
         https://git.kernel.org/pub/scm/linux/kernel/git/foo/bar.git test-branch)
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch has been submitted to LKML, but not accepted into any maintainer tree
    • tag the patch subject with FROMLIST:
    • add a Link: tag with a link to the submittal on lore.kernel.org
    • if changes were required, use BACKPORT: FROMLIST:
    • Example:
        FROMLIST: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Link: https://lore.kernel.org/lkml/20190619171517.GA17557@someone.com/
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for Android-specific patches: ANDROID:

  • If the patch is fixing a bug to Android-specific code
    • tag the patch subject with ANDROID:
    • add a Fixes: tag that cites the patch with the bug
    • Example:
        ANDROID: fix android-specific bug in foobar.c

        This is the detailed description of the important fix

        Fixes: 1234abcd2468 ("foobar: add cool feature")
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch is a new feature
    • tag the patch subject with ANDROID:
    • add a Bug: tag with the Android bug (required for android-specific features)