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0d1aadfe10
linux/drivers/mailbox
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Conor Dooley 0d1aadfe10 mailbox: mpfs: account for mbox offsets while sending 
The mailbox offset is not only used for receiving messages, but it is
also used by messages sent to the system controller by Linux that have a
payload, such as the "digital signature service". It is also overloaded
by certain other services (reprogramming of the FPGA fabric, see Link:)
to have a meaning other than the offset the system controller should
read from.
When the driver was written, no such services of the latter type were
in use & those of the former used an offset of zero so this has gone
un-noticed.

Link: https://www.microsemi.com/document-portal/doc_download/1245815-polarfire-fpga-and-polarfire-soc-fpga-system-services-user-guide # Section 5.2
Fixes: 83d7b15608 ("mbox: add polarfire soc system controller mailbox")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2022-10-05 21:48:38 -05:00
..
apple-mailbox.c mailbox: apple: Implement poll_data() operation 2022-09-15 13:14:01 -05:00
arm_mhu_db.c mailbox: correct kerneldoc 2022-05-21 11:41:30 -05:00
arm_mhu.c mailbox: arm_mhu: Remove redundant error printing in mhu_probe() 2021-06-26 11:37:48 -05:00
arm_mhuv2.c mailbox: correct kerneldoc 2022-05-21 11:41:30 -05:00
armada-37xx-rwtm-mailbox.c treewide: change my e-mail address, fix my name 2021-04-09 14:54:23 -07:00
bcm2835-mailbox.c mailbox: bcm2835: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:48 -05:00
bcm-flexrm-mailbox.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
bcm-pdc-mailbox.c mailbox: bcm-pdc: Remove redundant error printing in pdc_probe() 2021-06-26 11:37:50 -05:00
hi3660-mailbox.c mailbox: hi3660: convert struct comments to kernel-doc notation 2022-01-11 23:47:32 -06:00
hi6220-mailbox.c mailbox: hi6220: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
imx-mailbox.c mailbox: imx: fix RST channel support 2022-10-05 21:46:36 -05:00
Kconfig mailbox: mediatek: add support for adsp mailbox controller 2022-03-12 19:24:57 -06:00
mailbox-altera.c mailbox: altera: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:48 -05:00
mailbox-mpfs.c mailbox: mpfs: account for mbox offsets while sending 2022-10-05 21:48:38 -05:00
mailbox-sti.c mailbox: sti: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
mailbox-test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mailbox-xgene-slimpro.c mailbox: xgene-slimpro: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
mailbox.c mailbox: forward the hrtimer if not queued and under a lock 2022-05-23 14:45:24 -05:00
mailbox.h mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
Makefile mailbox: mediatek: add support for adsp mailbox controller 2022-03-12 19:24:57 -06:00
mtk-adsp-mailbox.c mailbox: mediatek: support mt8186 adsp mailbox 2022-05-21 11:41:30 -05:00
mtk-cmdq-mailbox.c mailbox: mtk-cmdq: Remove proprietary cmdq_task_cb 2022-08-02 15:06:57 -05:00
omap-mailbox.c mailbox: omap: using pm_runtime_resume_and_get to simplify the code 2022-05-21 11:41:30 -05:00
pcc.c mailbox: pcc: Fix an invalid-load caught by the address sanitizer 2022-05-21 11:41:30 -05:00
pl320-ipc.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
platform_mhu.c mailbox: platform-mhu: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
qcom-apcs-ipc-mailbox.c mailbox: qcom-apcs-ipc: Add compatible for MSM8976 SoC 2022-03-12 19:22:11 -06:00
qcom-ipcc.c mailbox: qcom-ipcc: Fix -Wunused-function with CONFIG_PM_SLEEP=n 2022-05-24 08:08:24 -05:00
rockchip-mailbox.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
sprd-mailbox.c mailbox: sprd: Add supplementary inbox support 2021-04-13 20:07:36 -05:00
stm32-ipcc.c mailbox: stm32-ipcc: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
sun6i-msgbox.c mailbox: sun6i: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
tegra-hsp.c mailbox: tegra-hsp: Add 128-bit shared mailbox support 2022-05-21 11:41:30 -05:00
ti-msgmgr.c mailbox: ti-msgmgr: Operate mailbox in polled mode during system suspend 2022-03-12 19:33:30 -06:00
zynqmp-ipi-mailbox.c mailbox: zynq: add missing of_node_put before return 2022-01-11 23:47:32 -06:00