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commit cca21000261b2364991ecdb0d9e66b26ad9c4b4e upstream.
Kernel test robot throws below warning ->
>> drivers/remoteproc/mtk_scp.c:755:37: warning: unused variable
>> 'mt8183_of_data' [-Wunused-const-variable]
static const struct mtk_scp_of_data mt8183_of_data = {
^
>> drivers/remoteproc/mtk_scp.c:765:37: warning: unused variable
>> 'mt8192_of_data' [-Wunused-const-variable]
static const struct mtk_scp_of_data mt8192_of_data = {
^
As suggested by Bjorn, there's no harm in just dropping the
of_match_ptr() wrapping of mtk_scp_of_match in the definition of
mtk_scp_driver and we avoid this whole problem.
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Link: https://lore.kernel.org/r/1606513855-21130-1-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 8c545f52dce44368fff524e13116e696e005c074 ]
Acknowledges watchdog IRQ after handled or kernel keeps receiving the
interrupt.
Fixes: fd0b6c1ff85a ("remoteproc/mediatek: Add support for mt8192 SCP")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210127082046.3735157-1-tzungbi@google.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 22c3df6f5574c8d401ea431c7ce24e7c5c5e7ef3 ]
Fixes the error handling to unprepare clk if scp_before_load fails.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: fd0b6c1ff85a ("remoteproc/mediatek: Add support for mt8192 SCP")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20201203155914.3844426-1-tzungbi@google.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit e59aef4edc45133ccb10b8e962cb74dcf1e3240b ]
Now that this driver can be compiled with COMPILE_TEST, we have no
guarantee that CONFIG_OF will also be defined. When that happens, a
warning about mtk_scp_of_match being defined but unused will be reported
so make sure this variable is only defined if of_match_ptr() actually
uses it.
Fixes: cbd2dca74926c0e4610c40923cc786b732c9e8ef remoteproc: scp: add COMPILE_TEST dependency
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Link: https://lore.kernel.org/r/20201102074007.299222-1-acourbot@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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As reported by Stephen, dsb() is not declared on e.g. x86_64, preventing
the mtp_scp from building. Simply remove the barrier (and the readback),
suggested by Pi-Hsun to resolve this.
Fixes: fd0b6c1ff85a ("remoteproc/mediatek: Add support for mt8192 SCP")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Suggested-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add support for mt8192 SCP.
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200921094847.2112399-1-pihsun@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This introduces device managed versions of functions used to register
remoteproc devices, add support for remoteproc driver specific
resource control, enables remoteproc drivers to specify ELF class and
machine for coredumps. It integrates pm_runtime in the core for
keeping resources active while the remote is booted and holds a wake
source while recoverying a remote processor after a firmware crash.
It refactors the remoteproc device's allocation path to simplify the
logic, fix a few cleanup bugs and to not clone const strings onto the
heap. Debugfs code is simplifies using the DEFINE_SHOW_ATTRIBUTE and a
zero-length array is replaced with flexible-array.
A new remoteproc driver for the JZ47xx VPU is introduced, the Qualcomm
SM8250 gains support for audio, compute and sensor remoteprocs and the
Qualcomm SC7180 modem support is cleaned up and improved.
The Qualcomm glink subsystem-restart driver is merged into the main
glink driver, the Qualcomm sysmon driver is extended to properly
notify remote processors about all other remote processors' state
transitions"
* tag 'rproc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (43 commits)
remoteproc: Fix an error code in devm_rproc_alloc()
MAINTAINERS: Add myself as reviewer for Ingenic rproc driver
remoteproc: ingenic: Added remoteproc driver
remoteproc: Add support for runtime PM
dt-bindings: Document JZ47xx VPU auxiliary processor
remoteproc: wcss: Fix arguments passed to qcom_add_glink_subdev()
remoteproc: Fix and restore the parenting hierarchy for vdev
remoteproc: Fall back to using parent memory pool if no dedicated available
remoteproc: Replace zero-length array with flexible-array
remoteproc: wcss: add support for rpmsg communication
remoteproc: core: Prevent system suspend during remoteproc recovery
remoteproc: qcom_q6v5_mss: Remove unused q6v5_da_to_va function
remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use
remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space
dt-bindings: remoteproc: qcom: Replace halt-nav with spare-regs
remoteproc: qcom: pas: Add SM8250 PAS remoteprocs
dt-bindings: remoteproc: qcom: pas: Add SM8250 remoteprocs
remoteproc: qcom_q6v5_mss: Extract mba/mpss from memory-region
dt-bindings: remoteproc: qcom: Use memory-region to reference memory
remoteproc: qcom: pas: Add SC7180 Modem support
...
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sizeof() when applied to a pointer typed expression gives the
size of the pointer, not that of the pointed data.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200509084237.36293-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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dma_addr_t and phys_addr_t are distinct types and must not be
mixed, as both the values and the size of the type may be
different depending on what the remote device uses.
In this driver the compiler warns when the two types are different:
drivers/remoteproc/mtk_scp.c: In function 'scp_map_memory_region':
drivers/remoteproc/mtk_scp.c:454:9: error: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]
454 | &scp->phys_addr, GFP_KERNEL);
| ^~~~~~~~~~~~~~~
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| phys_addr_t * {aka unsigned int *}
In file included from drivers/remoteproc/mtk_scp.c:7:
include/linux/dma-mapping.h:642:15: note: expected 'dma_addr_t *' {aka 'long long unsigned int *'} but argument is of type 'phys_addr_t *' {aka 'unsigned int *'}
642 | dma_addr_t *dma_handle, gfp_t gfp)
Change the phys_addr member to be typed and named according
to how it is allocated.
Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200408155450.2186471-1-arnd@arndb.de
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Clang errors:
drivers/remoteproc/mtk_scp.c:364:14: error: incompatible function
pointer types initializing 'void *(*)(struct rproc *, u64, size_t)' (aka
'void *(*)(struct rproc *, unsigned long long, unsigned int)') with an
expression of type 'void *(struct rproc *, u64, int)' (aka 'void
*(struct rproc *, unsigned long long, int)')
[-Werror,-Wincompatible-function-pointer-types]
.da_to_va = scp_da_to_va,
^~~~~~~~~~~~
1 error generated.
Make the same change as commit 0fcbb369f052 ("remoteproc: Use size_t
type for len in da_to_va"), which was not updated for the acceptance of
commit 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183").
Fixes: 0fcbb369f052 ("remoteproc: Use size_t type for len in da_to_va")
Link: https://github.com/ClangBuiltLinux/linux/issues/927
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200310211514.32288-1-natechancellor@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add a simple rpmsg support for mt8183 SCP, that use IPI / IPC directly.
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Link: https://lore.kernel.org/r/20191112110330.179649-4-pihsun@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Provide a basic driver to control Cortex M4 co-processor
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Link: https://lore.kernel.org/r/20191112110330.179649-3-pihsun@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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