In order to function, the IPA driver very clearly requires the
interconnect framework to be enabled in the kernel configuration.
State that dependency in the Kconfig file.
This became a problem when CONFIG_COMPILE_TEST support was added.
Non-Qualcomm platforms won't necessarily enable CONFIG_INTERCONNECT.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 38a4066f59 ("net: ipa: support COMPILE_TEST")
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20220301113440.257916-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
An IPA build problem arose in the linux-next tree the other day.
The problem is that a recent commit adds a new dependency on some
code, and the Kconfig file for IPA doesn't reflect that dependency.
As a result, some configurations can fail to build (particularly
when COMPILE_TEST is enabled).
The recent patch adds calls to qmp_get(), qmp_put(), and qmp_send(),
and those are built based on the QCOM_AOSS_QMP config option. If
that symbol is not defined, stubs are defined, so we just need to
ensure QCOM_AOSS_QMP is compatible with QCOM_IPA, or it's not
defined.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 34a081761e ("net: ipa: request IPA register values be retained")
Signed-off-by: Alex Elder <elder@linaro.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that SCM can be a loadable module, we have to add another
dependency to avoid link failures when ipa or adreno-gpu are
built-in:
aarch64-linux-ld: drivers/net/ipa/ipa_main.o: in function `ipa_probe':
ipa_main.c:(.text+0xfc4): undefined reference to `qcom_scm_is_available'
ld.lld: error: undefined symbol: qcom_scm_is_available
>>> referenced by adreno_gpu.c
>>> gpu/drm/msm/adreno/adreno_gpu.o:(adreno_zap_shader_load) in archive drivers/built-in.a
This can happen when CONFIG_ARCH_QCOM is disabled and we don't select
QCOM_MDT_LOADER, but some other module selects QCOM_SCM. Ideally we'd
use a similar dependency here to what we have for QCOM_RPROC_COMMON,
but that causes dependency loops from other things selecting QCOM_SCM.
This appears to be an endless problem, so try something different this
time:
- CONFIG_QCOM_SCM becomes a hidden symbol that nothing 'depends on'
but that is simply selected by all of its users
- All the stubs in include/linux/qcom_scm.h can go away
- arm-smccc.h needs to provide a stub for __arm_smccc_smc() to
allow compile-testing QCOM_SCM on all architectures.
- To avoid a circular dependency chain involving RESET_CONTROLLER
and PINCTRL_SUNXI, drop the 'select RESET_CONTROLLER' statement.
According to my testing this still builds fine, and the QCOM
platform selects this symbol already.
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Alex Elder <elder@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Rename the SDM845 configuration data file so that its name is
derived from its IPA version. I am not aware of any special IPA
behavior or handling that would be based on a specific SoC (as
opposed to a specific version of the IPA it contains).
Update a few other references to the code that talk about the SDM845
rather than just IPA v3.5.1.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
We currently assume the IPA driver is built only for a 64 bit kernel.
When this constraint was put in place it eliminated some do_div()
calls, replacing them with the "/" and "%" operators. We now only
use these operations on u32 and size_t objects. In a 32-bit kernel
build, size_t will be 32 bits wide, so there remains no reason to
use do_div() for divide and modulo.
A few recent commits also fix some code that assumes that DMA
addresses are 64 bits wide.
With that, we can get rid of the 64-bit build requirement.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The IPA driver depends on some SMEM functionality (qcom_smem_init(),
qcom_smem_alloc(), and qcom_smem_virt_to_phys()), but this is not
reflected in the configuration dependencies. Add a dependency on
QCOM_SMEM to avoid attempts to build the IPA driver without SMEM.
This avoids a link error for certain configurations.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 38a4066f59 ("net: ipa: support COMPILE_TEST")
Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210112192134.493-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Arrange for the IPA driver to be built when COMPILE_TEST is enabled.
Update the help text to reflect that we support two Qualcomm SoCs.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rearrange the config files for remoteproc and IPA to fix their
interdependencies.
First, have CONFIG_QCOM_Q6V5_MSS select QCOM_Q6V5_IPA_NOTIFY so the
notification code is built regardless of whether IPA needs it.
Next, represent QCOM_IPA as being dependent on QCOM_Q6V5_MSS rather
than setting its value to match QCOM_Q6V5_COMMON (which is selected
by QCOM_Q6V5_MSS).
Drop all dependencies from QCOM_Q6V5_IPA_NOTIFY. The notification
code will be built whenever QCOM_Q6V5_MSS is set, and it has no other
dependencies.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add build and Kconfig support for the Qualcomm IPA driver.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
