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Tim Harvey adab993c25 mmc: sdhci-esdhc-imx: disable CMDQ support 
On IMX SoC's which support CMDQ the following can occur during high a
high cpu load:

mmc2: cqhci: ============ CQHCI REGISTER DUMP ===========
mmc2: cqhci: Caps:      0x0000310a | Version:  0x00000510
mmc2: cqhci: Config:    0x00001001 | Control:  0x00000000
mmc2: cqhci: Int stat:  0x00000000 | Int enab: 0x00000006
mmc2: cqhci: Int sig:   0x00000006 | Int Coal: 0x00000000
mmc2: cqhci: TDL base:  0x8003f000 | TDL up32: 0x00000000
mmc2: cqhci: Doorbell:  0xbf01dfff | TCN:      0x00000000
mmc2: cqhci: Dev queue: 0x00000000 | Dev Pend: 0x08000000
mmc2: cqhci: Task clr:  0x00000000 | SSC1:     0x00011000
mmc2: cqhci: SSC2:      0x00000001 | DCMD rsp: 0x00000800
mmc2: cqhci: RED mask:  0xfdf9a080 | TERRI:    0x00000000
mmc2: cqhci: Resp idx:  0x0000000d | Resp arg: 0x00000000
mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
mmc2: sdhci: Sys addr:  0x7c722000 | Version:  0x00000002
mmc2: sdhci: Blk size:  0x00000200 | Blk cnt:  0x00000020
mmc2: sdhci: Argument:  0x00018000 | Trn mode: 0x00000023
mmc2: sdhci: Present:   0x01f88008 | Host ctl: 0x00000030
mmc2: sdhci: Power:     0x00000002 | Blk gap:  0x00000080
mmc2: sdhci: Wake-up:   0x00000008 | Clock:    0x0000000f
mmc2: sdhci: Timeout:   0x0000008f | Int stat: 0x00000000
mmc2: sdhci: Int enab:  0x107f4000 | Sig enab: 0x107f4000
mmc2: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000502
mmc2: sdhci: Caps:      0x07eb0000 | Caps_1:   0x8000b407
mmc2: sdhci: Cmd:       0x00000d1a | Max curr: 0x00ffffff
mmc2: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0xffc003ff
mmc2: sdhci: Resp[2]:   0x328f5903 | Resp[3]:  0x00d07f01
mmc2: sdhci: Host ctl2: 0x00000088
mmc2: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0xfe179020
mmc2: sdhci-esdhc-imx: ========= ESDHC IMX DEBUG STATUS DUMP ====
mmc2: sdhci-esdhc-imx: cmd debug status:  0x2120
mmc2: sdhci-esdhc-imx: data debug status:  0x2200
mmc2: sdhci-esdhc-imx: trans debug status:  0x2300
mmc2: sdhci-esdhc-imx: dma debug status:  0x2400
mmc2: sdhci-esdhc-imx: adma debug status:  0x2510
mmc2: sdhci-esdhc-imx: fifo debug status:  0x2680
mmc2: sdhci-esdhc-imx: async fifo debug status:  0x2750
mmc2: sdhci: ============================================

For now, disable CMDQ support on the imx8qm/imx8qxp/imx8mm until the
issue is found and resolved.

Fixes: bb6e358169 ("mmc: sdhci-esdhc-imx: add CMDQ support")
Fixes: cde5e8e9ff ("mmc: sdhci-esdhc-imx: Add an new esdhc_soc_data for i.MX8MM")
Cc: stable@vger.kernel.org
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20211103165415.2016-1-tharvey@gateworks.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-11-15 14:15:58 +01:00
arch parisc architecture build-, trace-, backtrace- and page table fixes 2021-11-14 11:53:59 -08:00
block blk-mq: fix filesystem I/O request allocation 2021-11-12 09:31:13 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
drivers mmc: sdhci-esdhc-imx: disable CMDQ support 2021-11-15 14:15:58 +01:00
fs Minor tweaks for 5.16: 2021-11-14 12:18:22 -08:00
include Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
init kconfig: Add support for -Wimplicit-fallthrough 2021-11-14 13:27:30 -08:00
ipc ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL 2021-11-09 10:02:53 -08:00
kernel A single fix for POSIX CPU timers to address a problem where POSIX CPU 2021-11-14 10:43:38 -08:00
lib Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Revert "mm: shmem: don't truncate page if memory failure happens" 2021-11-13 12:03:03 -08:00
net One notable change here is that async creates and unlinks introduced 2021-11-13 11:31:07 -08:00
samples Add gitignore file for samples/fanotify/ subdirectory 2021-11-07 11:19:24 -08:00
scripts coccinelle patches for 5.16-rc1 2021-11-13 10:45:17 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-12 12:07:02 -05:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt KVM: generalize "bugged" VM to "dead" VM 2021-11-11 10:35:26 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS - Add the model number of a new, Raptor Lake CPU, to intel-family.h 2021-11-14 09:29:03 -08:00
Makefile Linux 5.16-rc1 2021-11-14 13:56:52 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -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.

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.