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OpenCloudOS-Kernel/drivers/dma
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Kevin Groeneveld a3ae97f4c8 dmaengine: imx-sdma: fix init of uart scripts 
Commit b98ce2f4e3 ("dmaengine: imx-sdma: add uart rom script") broke
uart rx on imx5 when using sdma firmware from older Freescale 2.6.35
kernel. In this case reading addr->uartXX_2_mcu_addr was going out of
bounds of the firmware memory and corrupting the uart script addresses.

Simply adding a bounds check before accessing addr->uartXX_2_mcu_addr
does not work as the uartXX_2_mcu_addr members are now beyond the size
of the older firmware and the uart addresses would never be populated
in that case. There are other ways to fix this but overall the logic
seems clearer to me to revert the uartXX_2_mcu_ram_addr structure
entries back to uartXX_2_mcu_addr, change the newer entries to
uartXX_2_mcu_rom_addr and update the logic accordingly.

I have tested this patch on:
1. An i.MX53 system with sdma firmware from Freescale 2.6.35 kernel.
   Without this patch uart rx is broken in this scenario, with the
   patch uart rx is restored.
2. An i.MX6D system with no external sdma firmware. uart is okay with
   or without this patch.
3. An i.MX8MM system using current sdma-imx7d.bin firmware from
   linux-firmware. uart is okay with or without this patch and I
   confirmed the rom version of the uart script is being used which was
   the intention and reason for commit b98ce2f4e3 ("dmaengine:
   imx-sdma: add uart rom script") in the first place.

Fixes: b98ce2f4e3 ("dmaengine: imx-sdma: add uart rom script")
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Groeneveld <kgroeneveld@lenbrook.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220410223118.15086-1-kgroeneveld@lenbrook.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 		2022-04-11 16:17:28 +05:30
..
bestcomm dmaengine: bestcomm: fix system boot lockups 2021-10-18 11:43:12 +05:30
dw dmaengine: dw: switch from 'pci_' to 'dma_' API 2021-10-26 10:54:32 +05:30
dw-axi-dmac dmaengine: dw-axi-dmac: cleanup comments 2022-03-11 16:05:01 +05:30
dw-edma dmaengine: dw-edma: Fix return value check for dma_set_mask_and_coherent() 2021-11-22 12:14:12 +05:30
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: Drop comma after SoC match table sentinel 2022-03-11 15:47:39 +05:30
hsu dmaengine: hsu: switch from 'pci_' to 'dma_' API 2021-10-26 10:54:47 +05:30
idxd dmaengine: idxd: fix device cleanup on disable 2022-04-08 23:27:17 +05:30
ioat dmaengine: iot: Remove useless DMA-32 fallback configuration 2022-02-15 11:04:06 +05:30
ipu dmaengine: ipu: Fix fall-through warning for Clang 2021-07-13 14:38:47 -05:00
lgm dmaengine: INTEL_LDMA should depend on X86 2021-02-01 11:27:14 +05:30
mediatek dmaengine: mediatek: use GFP_NOWAIT instead of GFP_ATOMIC in prep_dma 2021-06-07 12:23:47 +05:30
ppc4xx dmaengine: ppc4xx: Make use of the helper macro LIST_HEAD() 2022-03-11 15:39:09 +05:30
ptdma dmaengine fixes for v5.17 2022-03-10 10:12:25 +05:30
qcom dmaengine: qcom_hidma: Remove useless DMA-32 fallback configuration 2022-03-11 15:23:23 +05:30
sf-pdma dmaengine updates for v5.14-rc1 2021-07-05 12:05:13 -07:00
sh dmaengine: sh: Kconfig: Add ARCH_R9A07G054 dependency for RZ_DMAC config option 2022-03-11 12:34:05 +05:30
ti dmaengine: ti: k3-psil: Add AM62x PSIL and PDMA data 2022-03-11 12:32:53 +05:30
xilinx dmaengine_topic_slave_id_removal_5.17 2021-12-17 21:42:17 +05:30
Kconfig MIPS: Remove TX39XX support 2022-03-01 10:07:22 +01:00
Makefile dmaengine: ptdma: Initial driver for the AMD PTDMA 2021-08-29 19:14:20 +05:30
TODO
…
acpi-dma.c dmaengine: acpi: Check for errors from acpi_register_gsi() separately 2021-08-06 21:48:11 +05:30
altera-msgdma.c dmaengine: altera-msgdma: Remove useless DMA-32 fallback configuration 2022-02-15 16:53:11 +05:30
amba-pl08x.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
at_hdmac.c dmaengine: at_hdmac: remove platform data header 2021-01-08 13:57:19 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: remove platform data header 2021-01-08 13:57:19 +05:30
at_xdmac.c dmaengine: at_xdmac: Fix missing unlock in at_xdmac_tasklet() 2022-02-15 10:56:04 +05:30
bcm-sba-raid.c dmaengine: bcm-sba-raid: Replace zero-length array with flexible-array member 2020-02-13 20:15:35 +05:30
bcm2835-dma.c dmaengine: bcm2835: Drop local dma_parms 2020-09-11 17:42:12 +05:30
dma-axi-dmac.c dmaengine: axi-dmac: Drop local dma_parms 2020-09-11 17:42:12 +05:30
dma-jz4780.c dmaengine: jz4780: Support bidirectional I/O on one channel 2021-12-17 21:39:27 +05:30
dmaengine.c dmaengine: Add core function and capability check for DMA_MEMCPY_SG 2021-11-22 11:38:05 +05:30
dmaengine.h dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result` 2021-10-25 09:42:56 +05:30
dmatest.c dmaengine: dmatest: Use dmaengine_get_dma_device 2020-12-11 21:20:08 +05:30
ep93xx_dma.c dmaengine: ep93xx: Prepare clock before using it 2021-08-02 12:27:10 +05:30
fsl-edma-common.c dmaengine: fsl-edma: support edma memcpy 2021-10-28 22:56:24 +05:30
fsl-edma-common.h dmaengine: fsl-edma: support edma memcpy 2021-10-28 22:56:24 +05:30
fsl-edma.c dmaengine: fsl-edma: support edma memcpy 2021-10-28 22:56:24 +05:30
fsl-qdma.c dmaengine: fsl-qdma: check dma_set_mask return value 2021-05-10 19:51:03 +05:30
fsl_raid.c dmaengine: fsl: remove bad channel update 2020-10-05 09:59:17 +05:30
fsl_raid.h
…
fsldma.c dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function 2021-01-12 18:00:39 +05:30
fsldma.h fsldma: fix very broken 32-bit ppc ioread64 functionality 2020-08-29 13:50:56 -07:00
hisi_dma.c dmaengine: hisi_dma: fix MSI allocate fail when reload hisi_dma 2022-03-11 16:05:39 +05:30
idma64.c dmaengine: idma64: Switch to use __maybe_unused instead of ifdeffery 2020-11-09 17:21:05 +05:30
idma64.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
img-mdc-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
imx-dma.c dmaengine: imx-dma: configure the generic DMA type to make it work 2021-08-02 12:31:19 +05:30
imx-sdma.c dmaengine: imx-sdma: fix init of uart scripts 2022-04-11 16:17:28 +05:30
iop-adma.c Merge branch 'topic/tasklet' into next 2020-10-01 10:18:59 +05:30
iop-adma.h treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
k3dma.c dmaengine: k3dma: use the correct HiSilicon copyright 2021-04-12 17:14:53 +05:30
lpc18xx-dmamux.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mcf-edma.c dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler 2020-06-24 13:06:15 +05:30
milbeaut-hdmac.c dmaengine: milbeaut-hdmac: Prefer kcalloc over open coded arithmetic 2021-10-25 12:12:13 +05:30
milbeaut-xdmac.c dmaengine: milbeaut-xdmac: Fix a resource leak in the error handling path of the probe function 2020-12-29 10:08:00 +05:30
mmp_pdma.c dmaengine: pxa/mmp: stop referencing config->slave_id 2021-12-17 11:23:56 +05:30
mmp_tdma.c dmaengine: mmp: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:06 +05:30
moxart-dma.c dmaengine: moxart-dma: remove redundant irqsave and irqrestore in hardIRQ 2020-11-09 17:25:54 +05:30
mpc512x_dma.c dmaengine: mpc512x: Fix fall-through warning for Clang 2021-07-14 11:05:55 -05:00
mv_xor.c dmaengine: mv_xor: drop of_match_ptr from of_device_id table 2020-11-24 23:02:20 +05:30
mv_xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor_v2.c dmaengine: mv_xor_v2: Get rid of msi_desc abuse 2021-12-16 22:16:41 +01:00
mxs-dma.c dmaengine: mxs-dma: Remove the unused .id_table 2020-11-24 22:55:15 +05:30
nbpfaxi.c dmaengine: nbpfaxi: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:06 +05:30
of-dma.c dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available 2021-07-28 12:54:50 +05:30
owl-dma.c dmaengine: owl-dma: Fix a resource leak in the remove function 2021-01-12 18:00:40 +05:30
pch_dma.c dmaengine: pch_dma: Remove usage of the deprecated "pci-dma-compat.h" API 2022-01-08 22:16:44 +05:30
pl330.c ARM: 9172/1: amba: Cleanup amba pclk operation 2022-02-28 13:59:15 +00:00
plx_dma.c dmaengine: switch from 'pci_' to 'dma_' API 2021-10-26 10:54:57 +05:30
pxa_dma.c dmaengine: pxa/mmp: stop referencing config->slave_id 2021-12-17 11:23:56 +05:30
s3c24xx-dma.c dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" 2020-01-23 17:03:25 +05:30
sa11x0-dma.c dmaengine: sa11x0: Mark PM functions as __maybe_unused 2021-10-26 10:55:07 +05:30
sprd-dma.c dmaengine: sprd: stop referencing config->slave_id 2021-12-17 11:23:56 +05:30
st_fdma.c dmaengine: st_fdma: fix MODULE_ALIAS 2021-12-13 13:18:48 +05:30
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40.c dmaengine: stedma40: add missing iounmap() on error in d40_probe() 2021-05-31 09:47:27 +05:30
ste_dma40_ll.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ste_dma40_ll.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
stm32-dma.c dmaengine: stm32-dma: set dma_device max_sg_burst 2022-02-15 11:12:07 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: Fix PM disable depth imbalance in stm32_dmamux_probe 2022-02-15 10:58:04 +05:30
stm32-mdma.c dmaengine: stm32-mdma: fix STM32_MDMA_CTBR_TSEL_MASK 2022-01-03 17:00:09 +05:30
sun4i-dma.c dmaengine: sun4i: Use list_move_tail instead of list_del/list_add_tail 2021-06-07 17:06:38 +05:30
sun6i-dma.c dmaengine: sun6i: Add support for A100 DMA 2020-11-18 16:28:49 +05:30
tegra20-apb-dma.c dmaengine: tegra20-apb: stop checking config->slave_id 2021-12-17 11:23:38 +05:30
tegra210-adma.c dmaengine: tegra210-adma: fix pm runtime unbalance in tegra_adma_remove 2021-10-25 10:06:10 +05:30
timb_dma.c dmaengine: timb_dma: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
txx9dmac.c dmaengine: txx9dmac: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
txx9dmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uniphier-mdmac.c dmaengine: uniphier-mdmac: replace zero-length array with flexible-array member 2020-02-13 20:15:57 +05:30
uniphier-xdmac.c dmaengine: uniphier-xdmac: Fix type of address variables 2022-01-03 17:49:37 +05:30
virt-dma.c dmaengine: virt-dma: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c dmaengine: xgene: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30