luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity
8892b705f5
tmp_suning_uos_patched/drivers/mmc/host
History
Douglas Anderson 8892b705f5 mmc: dw_mmc: Add locking to the CTO timer 
This attempts to instill a bit of paranoia to the code dealing with
the CTO timer.  It's believed that this will make the CTO timer more
robust in the case that we're having very long interrupt latencies.

Note that I originally thought that perhaps this patch was being
overly paranoid and wasn't really needed, but then while I was running
mmc_test on an rk3399 board I saw one instance of the message:
  dwmmc_rockchip fe320000.dwmmc: Unexpected interrupt latency

I had debug prints in the CTO timer code and I found that it was
running CMD 13 at the time.

...so even though this patch seems like it might be overly paranoid,
maybe it really isn't?

Presumably the bad interrupt latency experienced was due to the fact
that I had serial console enabled as serial console is typically where
I place blame when I see absurdly large interrupt latencies.  In this
particular case there was an (unrelated) printout to the serial
console just before I saw the "Unexpected interrupt latency" printout.

...and actually, I managed to even reproduce the problems by running
"iw mlan0 scan > /dev/null" while mmc_test was running.  That not only
does a bunch of PCIe traffic but it also (on my system) outputs some
SELinux log spam.

Fixes: 03de19212e ("mmc: dw_mmc: introduce timer for broken command transfer over scheme")
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-10-30 12:14:52 +01:00
..
android-goldfish.c mmc: android-goldfish: remove logically dead code in goldfish_mmc_irq() 2017-08-30 14:01:23 +02:00
atmel-mci.c mmc: Convert to using %pOF instead of full_name 2017-08-30 14:01:36 +02:00
au1xmmc.c
bcm2835.c mmc: bcm2835: constify mmc_host_ops structures 2017-08-30 14:01:45 +02:00
bfin_sdh.c
cavium-octeon.c mmc: cavium-octeon: Convert to use module_platform_driver 2017-08-30 15:03:38 +02:00
cavium-thunderx.c mmc: cavium: Fix use-after-free in of_platform_device_destroy 2017-09-08 15:38:22 +02:00
cavium.c mmc: Delete bounce buffer handling 2017-10-04 10:22:55 +02:00
cavium.h mmc: cavium: Add scatter-gather DMA support 2017-04-24 21:42:10 +02:00
cb710-mmc.c
cb710-mmc.h
davinci_mmc.c mmc: davinci: constify mmc_host_ops structures 2017-08-30 14:01:41 +02:00
dw_mmc-exynos.c mmc: dw_mmc: use the 'slot' instead of 'cur_slot' 2017-06-29 17:14:26 +02:00
dw_mmc-exynos.h
dw_mmc-k3.c mmc: dw_mmc-k3: add sd support for hi3660 2017-08-30 14:01:56 +02:00
dw_mmc-pci.c mmc: dw_mmc: Remove the public dw_mmc header file 2017-02-13 13:19:59 +01:00
dw_mmc-pltfm.c mmc: dw_mmc: Remove the public dw_mmc header file 2017-02-13 13:19:59 +01:00
dw_mmc-pltfm.h
dw_mmc-rockchip.c mmc: dw_mmc-rockchip: parse rockchip, desired-num-phases from DT 2017-06-29 17:13:59 +02:00
dw_mmc-zx.c mmc: dw_mmc: zx: Initial support for ZX mmc controller 2017-02-13 13:20:03 +01:00
dw_mmc-zx.h mmc: dw_mmc: zx: Initial support for ZX mmc controller 2017-02-13 13:20:03 +01:00
dw_mmc.c mmc: dw_mmc: Add locking to the CTO timer 2017-10-30 12:14:52 +01:00
dw_mmc.h mmc: dw_mmc: introduce timer for broken command transfer over scheme 2017-08-30 14:01:57 +02:00
jz4740_mmc.c mmc: jz4740: Let the pinctrl driver configure the pins 2017-05-22 17:20:02 +02:00
Kconfig mmc: host: fix typo after MMC_DEBUG move 2017-09-08 15:38:21 +02:00
Makefile mmc: mmci: stop building qcom dml as module 2017-08-30 15:03:53 +02:00
meson-gx-mmc.c mmc: meson-gx: include tx phase in the tuning process 2017-10-04 10:42:11 +02:00
mmc_spi.c mmc: use new core function mmc_get_dma_dir 2017-04-24 21:41:52 +02:00
mmci_qcom_dml.c scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
mmci_qcom_dml.h
mmci.c mmc: mmci: constify amba_id 2017-08-30 15:03:46 +02:00
mmci.h mmc: core/mmci: restore pre/post_req behaviour 2017-02-13 13:20:52 +01:00
moxart-mmc.c mmc: moxart: constify mmc_host_ops structures 2017-08-30 14:01:41 +02:00
mtk-sd.c mmc: mediatek: constify mmc_host_ops structures 2017-08-30 14:01:44 +02:00
mvsdio.c mmc: use new core function mmc_get_dma_dir 2017-04-24 21:41:52 +02:00
mvsdio.h
mxcmmc.c mmc: mxcmmc: Handle return value of clk_prepare_enable 2017-08-30 14:01:55 +02:00
mxs-mmc.c mmc: mxs-mmc: Implement CMD23 support 2017-02-13 13:20:27 +01:00
of_mmc_spi.c mmc: of_mmc_spi: fix restricted cast warning of sparse 2017-08-30 14:01:45 +02:00
omap_hsmmc.c mmc: omap_hsmmc: Reduce max_segs for reliability 2017-08-30 14:01:22 +02:00
omap.c mmc: omap: Don't use mmc_card_present() when validating for inserted card 2017-02-13 13:20:23 +01:00
pxamci.c mmc: Delete bounce buffer handling 2017-10-04 10:22:55 +02:00
pxamci.h
renesas_sdhi_core.c mmc: sdhi: use maximum width for the sdbuf register 2017-08-30 14:01:59 +02:00
renesas_sdhi_internal_dmac.c mmc: renesas_sdhi: fix kernel panic in _internal_dmac.c 2017-10-20 11:24:58 +02:00
renesas_sdhi_sys_dmac.c mmc: renesas_sdhi: Add r8a7743/5 support 2017-09-01 15:31:01 +02:00
renesas_sdhi.h mmc: tmio, renesas-sdhi: add max_{segs, blk_count} to tmio_mmc_data 2017-08-30 14:01:21 +02:00
rtsx_pci_sdmmc.c
rtsx_usb_sdmmc.c mmc: rtsx_usb_sdmmc: make array 'width' static const 2017-08-30 14:01:27 +02:00
s3cmci.c mmc: s3cmci: constify mmc_host_ops structures 2017-08-30 14:01:40 +02:00
s3cmci.h
sdhci_f_sdh30.c
sdhci-acpi.c sdhci: acpi: Use new method to get ACPI companion 2017-08-30 14:01:39 +02:00
sdhci-bcm-kona.c mmc: sdhci-bcm-kona: constify sdhci_pltfm_data and sdhci_ops structures 2017-08-30 14:01:52 +02:00
sdhci-brcmstb.c mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume 2017-08-30 15:03:44 +02:00
sdhci-cadence.c mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-cns3xxx.c
sdhci-dove.c
sdhci-esdhc-imx.c mmc: sdhci-esdhc-imx: Remove the ENGcm07207 workaround 2017-06-20 10:30:34 +02:00
sdhci-esdhc.h mmc: sdhci-of-esdhc: support ESDHC_CAPABILITIES_1 accessing 2017-08-30 15:03:36 +02:00
sdhci-iproc.c mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read 2017-05-22 18:18:04 +02:00
sdhci-msm.c mmc: sdhci-msm: set sdma_boundary to zero 2017-08-30 14:01:54 +02:00
sdhci-of-arasan.c mmc: sdhci-of-arasan: constify sdhci_pltfm_data and sdhci_ops structures 2017-08-30 14:01:53 +02:00
sdhci-of-at91.c mmc: sdhci-of-at91: set clocks and presets after resume from deepest PM 2017-08-30 14:01:31 +02:00
sdhci-of-esdhc.c mmc: sdhci-of-esdhc: support ESDHC_CAPABILITIES_1 accessing 2017-08-30 15:03:36 +02:00
sdhci-of-hlwd.c
sdhci-pci-core.c mmc: sdhci-pci: Fix default d3_retune for Intel host controllers 2017-10-10 08:40:04 +02:00
sdhci-pci-data.c mmc: sdhci-pci: Use ACPI DSM to get driver strength for some Intel devices 2017-04-24 21:41:28 +02:00
sdhci-pci-o2micro.c mmc: sdhci-pci: Let suspend/resume callbacks replace default callbacks 2017-04-24 21:41:38 +02:00
sdhci-pci-o2micro.h
sdhci-pci.h mmc: sdhci-pci: Add support for Intel CNP 2017-06-20 10:30:38 +02:00
sdhci-pic32.c mmc: sdhci: constify sdhci_pltfm_data structures 2017-08-30 14:01:51 +02:00
sdhci-pltfm.c mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-pltfm.h mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-pxav2.c mmc: sdhci-pxav2: switch to managed clk and sdhci_pltfm_unregister() 2017-08-30 15:03:44 +02:00
sdhci-pxav3.c mmc: sdhci: constify sdhci_pltfm_data structures 2017-08-30 14:01:51 +02:00
sdhci-s3c.c mmc: sdhci-s3c: use generic sdhci_set_bus_width() 2017-08-30 15:03:35 +02:00
sdhci-sirf.c mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume 2017-08-30 15:03:44 +02:00
sdhci-spear.c mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pm 2017-04-24 21:41:26 +02:00
sdhci-st.c mmc: sdhci-st: explicitly request exclusive reset control 2017-08-30 14:01:37 +02:00
sdhci-tegra.c mmc: sdhci-tegra: use generic sdhci_set_bus_width() 2017-08-30 15:03:35 +02:00
sdhci-xenon-phy.c mmc: sdhci-xenon: Support HS400 Enhanced Strobe feature 2017-08-30 15:03:43 +02:00
sdhci-xenon.c mmc: sdhci-xenon: Fix clock resource by adding an optional bus clock 2017-10-04 10:50:36 +02:00
sdhci-xenon.h mmc: sdhci-xenon: Fix clock resource by adding an optional bus clock 2017-10-04 10:50:36 +02:00
sdhci.c mmc: sdhci: Add quirk to indicate MMC_RSP_136 has CRC 2017-08-30 15:03:43 +02:00
sdhci.h mmc: sdhci: Add quirk to indicate MMC_RSP_136 has CRC 2017-08-30 15:03:43 +02:00
sdricoh_cs.c mmc: sdricoh_cs: constify mmc_host_ops structures 2017-08-30 14:01:44 +02:00
sh_mmcif.c mmc: sh_mmcif: constify mmc_host_ops structures 2017-08-30 14:01:42 +02:00
sunxi-mmc.c mmc: sunxi: Reset the device at probe time 2017-08-30 15:03:52 +02:00
tifm_sd.c
tmio_mmc_core.c mmc: tmio: fix swiotlb buffer is full 2017-10-20 11:24:58 +02:00
tmio_mmc.c mmc: tmio: improve checkpatch cleanness 2017-06-20 10:30:50 +02:00
tmio_mmc.h mmc: tmio: no magic values when enabling DMA 2017-08-30 14:01:25 +02:00
toshsd.c mmc: toshsd: constify mmc_host_ops structures 2017-08-30 14:01:42 +02:00
toshsd.h
usdhi6rol0.c mmc: usdhi6rol0: constify mmc_host_ops structures 2017-08-30 14:01:43 +02:00
ushc.c mmc: ushc: fix NULL-deref at probe 2017-03-16 15:31:27 +01:00
via-sdmmc.c mmc: host: via-sdmmc: constify pci_device_id. 2017-08-30 14:01:35 +02:00
vub300.c mmc: vub300: constify usb_device_id 2017-08-30 14:01:58 +02:00
wbsd.c mmc: wbsd: remove CONFIG_MMC_DEBUG from the driver 2017-08-30 14:01:35 +02:00
wbsd.h
wmt-sdmmc.c mmc: wmt-sdmmc: Handle return value of clk_prepare_enable 2017-08-30 14:01:55 +02:00