AuxXxilium/linux_dsm_epyc7002
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03d3a1df6d
linux_dsm_epyc7002/drivers/mtd/nand
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Cooper Jr., Franklin 03d3a1df6d mtd: nand: omap2: Start dma request before enabling prefetch 
The prefetch engine sends a dma request once a FIFO threshold has
been met. No other requests are received until the previous request
is handled.

Starting a dma transfer (dma_async_issue_pending) results in any
previous event for the dma channel to be cleared. Therefore, starting
the prefetch engine before initiating the dma transfer may result in
the prefetch triggering a dma request but instead of it being handled
it can end up being cleared. This will result in a hang since the code
will continue to wait for the dma request to complete.

By initiating the dma request before enabling the prefetch engine this
race condition is avoided and no dma request are missed/cleared.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-05 23:52:01 +02:00
..
bcm47xxnflash mtd: nand: make use of nand_set/get_controller_data() helpers 2016-01-07 10:23:41 -08:00
brcmnand mtd: nand: brcm: switch to mtd_ooblayout_ops 2016-05-05 23:51:38 +02:00
gpmi-nand mtd: nand: gpmi: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:57 +02:00
ams-delta.c mtd: nand: ams-delta: set ECC algorithm explicitly 2016-04-19 22:05:31 +02:00
atmel_nand_ecc.h mtd: atmel_nand: Support 32-bit ECC strength 2016-02-12 10:27:48 -08:00
atmel_nand_nfc.h mtd: atmel_nand: Support variable RB_EDGE interrupts 2016-02-12 10:27:46 -08:00
atmel_nand.c mtd: nand: atmel: switch to mtd_ooblayout_ops 2016-05-05 23:51:37 +02:00
au1550nd.c mtd: nand: au1550nd: set ECC algorithm explicitly 2016-05-05 23:51:53 +02:00
bf5xx_nand.c mtd: nand: bf5xx: switch to mtd_ooblayout_ops 2016-05-05 23:51:38 +02:00
cafe_nand.c mtd: nand: cafe: switch to mtd_ooblayout_ops 2016-05-05 23:51:39 +02:00
cmx270_nand.c mtd: nand: cmx270: set ECC algorithm explicitly 2016-05-05 23:51:54 +02:00
cs553x_nand.c mtd: nand: remove useless mtd->priv = chip assignments 2015-12-18 13:21:40 -08:00
davinci_nand.c mtd: nand: davinci: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:57 +02:00
denali_dt.c mtd: nand: drop owner assignment from platform_drivers 2014-10-20 16:20:58 +02:00
denali_pci.c mtd: denali_pci: switch to dev_err() 2015-08-18 17:21:37 -07:00
denali.c mtd: nand: denali: switch to mtd_ooblayout_ops 2016-05-05 23:51:40 +02:00
denali.h mtd: nand: denali: use the mtd instance embedded in struct nand_chip 2015-12-18 13:13:50 -08:00
diskonchip.c mtd: nand: diskonchip: switch to mtd_ooblayout_ops 2016-05-05 23:51:40 +02:00
docg4.c mtd: nand: docg4: switch to mtd_ooblayout_ops 2016-05-05 23:51:41 +02:00
fsl_elbc_nand.c mtd: nand: fsl_elbc: set ECC algorithm explicitly 2016-05-05 23:51:55 +02:00
fsl_ifc_nand.c mtd: nand: fsl_ifc: set ECC algorithm explicitly 2016-05-05 23:51:55 +02:00
fsl_upm.c mtd: nand: fsl_upm: set ECC algorithm explicitly 2016-05-05 23:51:54 +02:00
fsmc_nand.c mtd: nand: fsmc: get rid of the fsmc_nand_eccplace struct 2016-05-05 23:51:43 +02:00
gpio.c mtd: nand: gpio: set ECC algorithm explicitly 2016-04-19 22:05:31 +02:00
hisi504_nand.c mtd: nand: hisi504: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:58 +02:00
jz4740_nand.c mtd: nand: jz4740: Remove unused local variable 2016-05-05 23:51:56 +02:00
jz4780_bch.c mtd: nand: jz4780: fixup, device structure assigned at probe 2016-04-19 22:04:50 +02:00
jz4780_bch.h mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs 2016-01-07 09:35:11 -08:00
jz4780_nand.c mtd: nand: jz4780: switch to mtd_ooblayout_ops 2016-05-05 23:51:44 +02:00
Kconfig mtd: nand: Qualcomm NAND controller driver 2016-03-10 11:02:17 -08:00
lpc32xx_mlc.c mtd: nand: lpc32xx: switch to mtd_ooblayout_ops 2016-05-05 23:51:45 +02:00
lpc32xx_slc.c mtd: nand: lpc32xx: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:58 +02:00
Makefile mtd: nand: Qualcomm NAND controller driver 2016-03-10 11:02:17 -08:00
mpc5121_nfc.c mtd: nand: mpc5121_nfc: set ECC algorithm explicitly 2016-05-05 23:51:53 +02:00
mxc_nand.c mtd: nand: mxc: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:59 +02:00
nand_base.c mtd: nand: move of_get_nand_xxx() helpers into nand_base.c 2016-05-05 23:52:00 +02:00
nand_bbt.c mtd: nand: remove EXPORT_SYMBOL of nand_scan_bbt() 2016-01-23 14:00:14 -08:00
nand_bch.c mtd: nand: kill the ecc->layout field 2016-05-05 23:51:50 +02:00
nand_ecc.c mtd: nand: return consistent error codes in ecc.correct() implementations 2016-01-06 18:45:46 -08:00
nand_ids.c mtd: nand: add NAND_NEED_SCRAMBLING flag to the H27UCG8T2ATR-BC definition 2016-01-22 16:36:54 -08:00
nand_timings.c mtd: nand: Use ULL-suffix for big u64 constant 2014-08-19 11:53:09 -07:00
nandsim.c mtd: nandsim: add __init attribute 2016-05-05 23:52:00 +02:00
ndfc.c mtd: nand: make use of nand_set/get_controller_data() helpers 2016-01-07 10:23:41 -08:00
nuc900_nand.c mtd: nand: nuc900: set ECC algorithm explicitly 2016-04-19 22:05:32 +02:00
omap2.c mtd: nand: omap2: Start dma request before enabling prefetch 2016-05-05 23:52:01 +02:00
omap_elm.c mtd: omap_elm: print interrupt resource using %pr 2015-12-18 10:16:17 -08:00
orion_nand.c mtd: nand: orion: set ECC algorithm explicitly 2016-04-19 22:05:33 +02:00
pasemi_nand.c mtd: nand: pasemi: switch to dev_* printing functions 2016-04-19 22:05:35 +02:00
plat_nand.c mtd: nand: plat: set ECC algorithm explicitly 2016-04-19 22:05:34 +02:00
pxa3xx_nand.c mtd: nand: pxa3xx: switch to mtd_ooblayout_ops 2016-05-05 23:51:46 +02:00
qcom_nandc.c mtd: nand: qcom: switch to mtd_ooblayout_ops 2016-05-05 23:51:49 +02:00
r852.c mtd: nand: make use of nand_set/get_controller_data() helpers 2016-01-07 10:23:41 -08:00
r852.h mtd: nand: r852: use the mtd instance embedded in struct nand_chip 2015-12-18 10:54:41 -08:00
s3c2410.c mtd: nand: s3c2410: set ECC algorithm explicitly 2016-05-05 23:51:52 +02:00
sh_flctl.c mtd: nand: sh_flctl: rely on generic DT parsing done in nand_scan_ident() 2016-05-05 23:51:59 +02:00
sharpsl.c mtd: nand: sharpsl: switch to mtd_ooblayout_ops 2016-05-05 23:51:36 +02:00
sm_common.c mtd: nand: sm_common: switch to mtd_ooblayout_ops 2016-05-05 23:51:48 +02:00
sm_common.h mtd: use __packed shorthand 2014-08-19 11:53:08 -07:00
socrates_nand.c mtd: nand: socrates: set ECC algorithm explicitly 2016-04-19 22:05:35 +02:00
sunxi_nand.c mtd: nand: sunxi: switch to mtd_ooblayout_ops 2016-05-05 23:51:48 +02:00
tmio_nand.c mtd: nand: remove useless mtd->priv = chip assignments 2015-12-18 13:21:40 -08:00
txx9ndfmc.c mtd: nand: make use of nand_set/get_controller_data() helpers 2016-01-07 10:23:41 -08:00
vf610_nfc.c mtd: nand: vf610: switch to mtd_ooblayout_ops 2016-05-05 23:51:48 +02:00
xway_nand.c mtd: nand: make use of mtd_to_nand() in NAND drivers 2015-12-08 12:24:36 -08:00