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4730831c7d
linux/drivers/mmc/host
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Baolin Wang 4730831c7d mmc: host: sdhci: Add a variable to defer to complete requests if needed 
When using the host software queue, it will trigger the next request in
irq handler without a context switch. But the sdhci_request() can not be
called in interrupt context when using host software queue for some host
drivers, due to the get_cd() ops can be sleepable.

But for some host drivers, such as Spreadtrum host driver, the card is
nonremovable, so the get_cd() ops is not sleepable, which means we can
complete the data request and trigger the next request in irq handler
to remove the context switch for the Spreadtrum host driver.

As suggested by Adrian, we should introduce a request_atomic() API to
indicate that a request can be called in interrupt context to remove
the context switch when using mmc host software queue. But this should
be done in another thread to convert the users of mmc host software queue.
Thus we can introduce a variable in struct sdhci_host to indicate that
we will always to defer to complete requests when using the host software
queue.

Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/e693e7a29beb3c1922b333f4603ea81f43d5c5b1.1581478568.git.baolin.wang7@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-03-24 14:35:39 +01:00
..
alcor.c mmc: alcor: remove a redundant greater or equal to zero comparison 2019-07-10 13:17:30 +02:00
android-goldfish.c MMC core: 2019-07-11 18:11:21 -07:00
atmel-mci.c mmc: atmel-mci: Convert to pinctrl_select_default_state() 2019-12-16 13:00:41 +01:00
au1xmmc.c mmc: au1xmmc: switch to platform_get_irq 2019-12-18 14:55:11 +01:00
bcm2835.c mmc: bcm2835: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:43 +01:00
cavium-octeon.c mmc: cavium-octeon: Use devm_platform_ioremap_resource() 2019-11-13 16:10:16 +01:00
cavium-thunderx.c mmc: cavium: Add missed pci_release_regions 2019-12-18 12:55:11 +01:00
cavium.c mmc: cavium: Add the missing dma unmap when the dma has finished. 2019-08-06 18:59:14 +02:00
cavium.h
cb710-mmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cb710-mmc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cqhci.c mmc: Add MMC host software queue support 2020-03-24 14:35:39 +01:00
cqhci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
davinci_mmc.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
dw_mmc-bluefield.c mmc: dw_mmc-bluefield: : Fix the license information 2019-01-22 08:46:20 +01:00
dw_mmc-exynos.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-exynos.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-hi3798cv200.c mmc: dw_mmc: hi3798cv200: make array degrees static const, makes object smaller 2019-09-11 16:10:37 +02:00
dw_mmc-k3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-pltfm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-pltfm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-rockchip.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-zx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dw_mmc-zx.h
dw_mmc.c mmc: dw_mmc: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
dw_mmc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
jz4740_mmc.c mmc: jz4740: Convert to pinctrl_select_default_state() 2019-12-16 13:00:41 +01:00
Kconfig mmc: Add MMC host software queue support 2020-03-24 14:35:39 +01:00
Makefile mmc: Add MMC host software queue support 2020-03-24 14:35:39 +01:00
meson-gx-mmc.c mmc: meson-gx: Convert to pinctrl_select_default_state() 2019-12-16 13:00:41 +01:00
meson-mx-sdio.c mmc: meson-mx-sdio: convert to devm_platform_ioremap_resource 2019-12-18 14:46:06 +01:00
mmc_hsq.c mmc: Add MMC host software queue support 2020-03-24 14:35:39 +01:00
mmc_hsq.h mmc: Add MMC host software queue support 2020-03-24 14:35:39 +01:00
mmc_spi.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
mmci_qcom_dml.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
mmci_stm32_sdmmc.c mmc: mmci: stm32: make sdmmc_idma_validate_data static 2019-11-13 16:10:16 +01:00
mmci.c mmc: mmci: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
mmci.h mmc: mmci: Support any block sizes for ux500v2 and qcom variant 2019-12-18 14:55:11 +01:00
moxart-mmc.c mmc: moxart: Use dma_request_chan() directly for channel request 2019-11-14 16:28:56 +01:00
mtk-sd.c mmc: mtk-sd: convert to devm_platform_ioremap_resource 2019-12-18 14:55:11 +01:00
mvsdio.c mmc: mvsdio: convert to devm_platform_ioremap_resource 2019-12-18 14:55:11 +01:00
mvsdio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mxcmmc.c mmc: mxcmmc: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
mxs-mmc.c mmc: mxs: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
of_mmc_spi.c mmc: mmc_spi: Convert to use SPDX identifier 2019-04-15 11:55:54 +02:00
omap_hsmmc.c mmc: omap_hsmmc: Convert to pinctrl_select_default_state() 2019-12-16 13:00:41 +01:00
omap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
owl-mmc.c mmc: owl-mmc: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
pxamci.c mmc: pxamci: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
pxamci.h
renesas_sdhi_core.c mmc: tmio: remove superfluous callback wrappers 2020-03-24 14:35:38 +01:00
renesas_sdhi_internal_dmac.c mmc: renesas_sdhi: use recent tap values for HS400 2019-12-16 12:29:36 +01:00
renesas_sdhi_sys_dmac.c mmc: renesas_sdhi_sys_dmac: Remove all R-Car Gen3 SoCs 2019-09-11 15:58:39 +02:00
renesas_sdhi.h mmc: tmio: factor out TAP usage 2020-03-24 14:35:38 +01:00
rtsx_pci_sdmmc.c mmc: rtsx_pci: Fix support for speed-modes that relies on tuning 2020-03-18 11:55:02 +01:00
rtsx_usb_sdmmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
s3cmci.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
s3cmci.h MMC core: 2019-07-11 18:11:21 -07:00
sdhci_am654.c Merge branch 'fixes' into next 2020-01-16 12:37:26 +01:00
sdhci_f_sdh30.c mmc: sdhci_f_sdh30: convert to devm_platform_ioremap_resource 2019-12-18 14:46:06 +01:00
sdhci_f_sdh30.h mmc: sdhci-milbeaut: add Milbeaut SD controller driver 2019-11-13 16:10:16 +01:00
sdhci-acpi.c mmc: sdhci-acpi: Disable write protect detection on Acer Aspire Switch 10 (SW5-012) 2020-03-17 12:21:21 +01:00
sdhci-bcm-kona.c mmc: sdhci-bcm-kona: Drop unused includes 2019-02-25 08:40:58 +01:00
sdhci-brcmstb.c mmc: sdhci-brcmstb: Fix incorrect switch to HS mode 2020-01-20 12:01:19 +01:00
sdhci-cadence.c mmc: sdhci-cadence: set SDHCI_QUIRK2_PRESET_VALUE_BROKEN for UniPhier 2020-03-17 12:25:29 +01:00
sdhci-cns3xxx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sdhci-dove.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 176 2019-05-30 11:29:19 -07:00
sdhci-esdhc-imx.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
sdhci-esdhc.h mmc: sdhci-of-esdhc: fix up erratum A-008171 workaround 2019-11-13 16:10:16 +01:00
sdhci-iproc.c mmc: sdhci-iproc: fix spurious interrupts on Multiblock reads with bcm2711 2019-10-09 11:05:50 +02:00
sdhci-milbeaut.c mmc: sdhci-milbeaut: Remove redundant platform_get_irq error message 2020-01-20 11:52:26 +01:00
sdhci-msm.c mmc: sdhci-msm: Don't enable PWRSAVE_DLL for certain sdhc hosts 2020-03-24 14:35:39 +01:00
sdhci-of-arasan.c mmc: sdhci-of-arasan: Remove quirk for broken base clock 2020-03-24 14:35:39 +01:00
sdhci-of-aspeed.c mmc: sdhci-of-aspeed: add inversion signal presence 2019-11-20 13:40:47 +01:00
sdhci-of-at91.c mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2 2020-03-17 12:28:18 +01:00
sdhci-of-dwcmshc.c
sdhci-of-esdhc.c mmc: sdhci-of-esdhc: fix serious issue clock is always disabled 2020-01-20 12:10:36 +01:00
sdhci-of-hlwd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdhci-omap.c mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY 2020-03-11 16:11:39 +01:00
sdhci-pci-arasan.c
sdhci-pci-core.c Merge branch 'fixes' into next 2019-12-18 14:44:24 +01:00
sdhci-pci-data.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sdhci-pci-dwc-mshc.c
sdhci-pci-gli.c mmc: sdhci-pci-gli: Enable MSI interrupt for GL975x 2020-03-04 15:41:22 +01:00
sdhci-pci-o2micro.c Merge branch 'fixes' into next 2019-09-11 15:59:01 +02:00
sdhci-pci.h mmc: sdhci-pci: Add support for Intel JSL 2019-11-13 16:10:16 +01:00
sdhci-pic32.c
sdhci-pltfm.c mmc: Remove dev_err() usage after platform_get_irq() 2019-09-11 15:58:39 +02:00
sdhci-pltfm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sdhci-pxav2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
sdhci-pxav3.c mmc: sdhci-sprd: Fix the incorrect soft reset operation when runtime resuming 2019-08-06 18:59:14 +02:00
sdhci-s3c.c mmc: sdhci-s3c: convert to devm_platform_ioremap_resource 2019-12-18 14:46:06 +01:00
sdhci-sirf.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
sdhci-spear.c mmc: sdhci-spear: convert to devm_platform_ioremap_resource 2019-12-18 14:46:06 +01:00
sdhci-sprd.c mmc: sdhci-sprd: clear the UHS-I modes read from registers 2019-08-30 09:17:53 +02:00
sdhci-st.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
sdhci-tegra.c mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY 2020-03-11 16:12:02 +01:00
sdhci-xenon-phy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
sdhci-xenon.c mmc: sdhci-sprd: Fix the incorrect soft reset operation when runtime resuming 2019-08-06 18:59:14 +02:00
sdhci-xenon.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
sdhci.c mmc: host: sdhci: Add a variable to defer to complete requests if needed 2020-03-24 14:35:39 +01:00
sdhci.h mmc: host: sdhci: Add a variable to defer to complete requests if needed 2020-03-24 14:35:39 +01:00
sdricoh_cs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
sh_mmcif.c mmc: sh_mmcif: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
sunxi-mmc.c mmc: sunxi-mmc: convert to devm_platform_ioremap_resource 2019-12-18 14:46:06 +01:00
tifm_sd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tmio_mmc_core.c mmc: tmio: remove superfluous callback wrappers 2020-03-24 14:35:38 +01:00
tmio_mmc.c Revert "mmc: tmio: move runtime PM enablement to the driver implementations" 2019-09-13 13:48:35 +02:00
tmio_mmc.h mmc: tmio: factor out TAP usage 2020-03-24 14:35:38 +01:00
toshsd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
toshsd.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
uniphier-sd.c mmc: uniphier-sd: Convert to pinctrl_select_default_state() 2019-12-16 13:00:41 +01:00
usdhi6rol0.c mmc: usdhi6rol0: Use dma_request_chan() instead dma_request_slave_channel() 2019-12-19 08:19:42 +01:00
ushc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
via-sdmmc.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
vub300.c mmc: vub300: Drop redundant host ops ->init_card() 2019-11-13 16:10:16 +01:00
wbsd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wbsd.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wmt-sdmmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00