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Linux kernel for uConsole
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Kevin Hao d79d76f2bb mmc: cavium: Add the missing dma unmap when the dma has finished. 
commit b803974a86 upstream.

This fixes the below calltrace when the CONFIG_DMA_API_DEBUG is enabled.
  DMA-API: thunderx_mmc 0000:01:01.4: cpu touching an active dma mapped cacheline [cln=0x000000002fdf9800]
  WARNING: CPU: 21 PID: 1 at kernel/dma/debug.c:596 debug_dma_assert_idle+0x1f8/0x270
  Modules linked in:
  CPU: 21 PID: 1 Comm: init Not tainted 5.3.0-rc1-next-20190725-yocto-standard+ #64
  Hardware name: Marvell OcteonTX CN96XX board (DT)
  pstate: 80400009 (Nzcv daif +PAN -UAO)
  pc : debug_dma_assert_idle+0x1f8/0x270
  lr : debug_dma_assert_idle+0x1f8/0x270
  sp : ffff0000113cfc10
  x29: ffff0000113cfc10 x28: 0000ffff8c880000
  x27: ffff800bc72a0000 x26: ffff000010ff8000
  x25: ffff000010ff8940 x24: ffff000010ff8968
  x23: 0000000000000000 x22: ffff000010e83700
  x21: ffff000010ea2000 x20: ffff000010e835c8
  x19: ffff800bc2c73300 x18: ffffffffffffffff
  x17: 0000000000000000 x16: 0000000000000000
  x15: ffff000010e835c8 x14: 6d20616d64206576
  x13: 69746361206e6120 x12: 676e696863756f74
  x11: 20757063203a342e x10: 31303a31303a3030
  x9 : 303020636d6d5f78 x8 : 3230303030303030
  x7 : 00000000000002fd x6 : ffff000010fd57d0
  x5 : 0000000000000000 x4 : ffff0000106c5210
  x3 : 00000000ffffffff x2 : 0000800bee9c0000
  x1 : 57d5843f4aa62800 x0 : 0000000000000000
  Call trace:
   debug_dma_assert_idle+0x1f8/0x270
   wp_page_copy+0xb0/0x688
   do_wp_page+0xa8/0x5b8
   __handle_mm_fault+0x600/0xd00
   handle_mm_fault+0x118/0x1e8
   do_page_fault+0x200/0x500
   do_mem_abort+0x50/0xb0
   el0_da+0x20/0x24
  ---[ end trace a005534bd23e109f ]---
  DMA-API: Mapped at:
   debug_dma_map_sg+0x94/0x350
   cvm_mmc_request+0x3c4/0x988
   __mmc_start_request+0x9c/0x1f8
   mmc_start_request+0x7c/0xb0
   mmc_blk_mq_issue_rq+0x5c4/0x7b8

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Fixes: ba3869ff32 ("mmc: cavium: Add core MMC driver for Cavium SOCs")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-16 10:12:39 +02:00
arch x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS 2019-08-06 19:06:58 +02:00
block block, scsi: Change the preempt-only flag into a counter 2019-08-04 09:30:57 +02:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto crypto: chacha20poly1305 - fix atomic sleep when using async algorithm 2019-07-26 09:14:19 +02:00
Documentation Documentation: Add swapgs description to the Spectre v1 documentation 2019-08-06 19:06:58 +02:00
drivers mmc: cavium: Add the missing dma unmap when the dma has finished. 2019-08-16 10:12:39 +02:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs compat_ioctl: pppoe: fix PPPOEIOCSFWD handling 2019-08-09 17:52:34 +02:00
include crypto: ccp - Add support for valid authsize values less than 16 2019-08-16 10:12:38 +02:00
init initramfs: free initrd memory if opening /initrd.image fails 2019-06-15 11:54:01 +02:00
ipc ipc/mqueue.c: only perform resource calculation if user valid 2019-08-06 19:06:52 +02:00
kernel cgroup: Fix css_task_iter_advance_css_set() cset skip condition 2019-08-09 17:52:35 +02:00
lib lib/test_string.c: avoid masking memset16/32/64 failures 2019-08-06 19:06:51 +02:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mm: vmscan: check if mem cgroup is disabled or not before calling memcg slab shrinker 2019-08-06 19:06:54 +02:00
net compat_ioctl: pppoe: fix PPPOEIOCSFWD handling 2019-08-09 17:52:34 +02:00
samples samples, bpf: suppress compiler warning 2019-07-14 08:11:04 +02:00
scripts kconfig: Clear "written" flag to avoid data loss 2019-08-06 19:06:53 +02:00
security selinux: fix memory leak in policydb_init() 2019-08-06 19:06:54 +02:00
sound sound: fix a memory leak bug 2019-08-16 10:12:39 +02:00
tools objtool: Support GCC 9 cold subfunction naming scheme 2019-08-06 19:06:57 +02:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy 2019-07-14 08:11:10 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS platform/x86: Add Intel AtomISP2 dummy / power-management driver 2019-04-20 09:16:02 +02:00
Makefile Linux 4.19.66 2019-08-09 17:52:35 +02:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

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.