kernel/linux.git/drivers/remoteproc, branch v6.13.6

remoteproc: omap: Handle ARM dma_iommu_mapping

2025-02-17T10:36:17+00:00

commit 1dc7c8ed7cb378dd3974387692dfa833aee718d4 upstream. It's no longer practical for the OMAP IOMMU driver to trick arm_setup_iommu_dma_ops() into ignoring its presence, so let's use the same tactic as other IOMMU API users on 32-bit ARM and explicitly kick the arch code's dma_iommu_mapping out of the way to avoid problems. Fixes: 4720287c7bf7 ("iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops()") Signed-off-by: Robin Murphy Tested-by: Beleswar Padhi Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/6186e311cb6f64a787f87fd41e49a73f409b789c.1730136799.git.robin.murphy@arm.com [Fixed changelog title] Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman

remoteproc: core: Fix ida_free call while not allocated

2025-02-08T09:02:24+00:00

commit 7378aeb664e5ebc396950b36a1f2dedf5aabec20 upstream. In the rproc_alloc() function, on error, put_device(&rproc->dev) is called, leading to the call of the rproc_type_release() function. An error can occurs before ida_alloc is called. In such case in rproc_type_release(), the condition (rproc->index >= 0) is true as rproc->index has been initialized to 0. ida_free() is called reporting a warning: [ 4.181906] WARNING: CPU: 1 PID: 24 at lib/idr.c:525 ida_free+0x100/0x164 [ 4.186378] stm32-display-dsi 5a000000.dsi: Fixed dependency cycle(s) with /soc/dsi@5a000000/panel@0 [ 4.188854] ida_free called for id=0 which is not allocated. [ 4.198256] mipi-dsi 5a000000.dsi.0: Fixed dependency cycle(s) with /soc/dsi@5a000000 [ 4.203556] Modules linked in: panel_orisetech_otm8009a dw_mipi_dsi_stm(+) gpu_sched dw_mipi_dsi stm32_rproc stm32_crc32 stm32_ipcc(+) optee(+) [ 4.224307] CPU: 1 UID: 0 PID: 24 Comm: kworker/u10:0 Not tainted 6.12.0 #442 [ 4.231481] Hardware name: STM32 (Device Tree Support) [ 4.236627] Workqueue: events_unbound deferred_probe_work_func [ 4.242504] Call trace: [ 4.242522] unwind_backtrace from show_stack+0x10/0x14 [ 4.250218] show_stack from dump_stack_lvl+0x50/0x64 [ 4.255274] dump_stack_lvl from __warn+0x80/0x12c [ 4.260134] __warn from warn_slowpath_fmt+0x114/0x188 [ 4.265199] warn_slowpath_fmt from ida_free+0x100/0x164 [ 4.270565] ida_free from rproc_type_release+0x38/0x60 [ 4.275832] rproc_type_release from device_release+0x30/0xa0 [ 4.281601] device_release from kobject_put+0xc4/0x294 [ 4.286762] kobject_put from rproc_alloc.part.0+0x208/0x28c [ 4.292430] rproc_alloc.part.0 from devm_rproc_alloc+0x80/0xc4 [ 4.298393] devm_rproc_alloc from stm32_rproc_probe+0xd0/0x844 [stm32_rproc] [ 4.305575] stm32_rproc_probe [stm32_rproc] from platform_probe+0x5c/0xbc Calling ida_alloc earlier in rproc_alloc ensures that the rproc->index is properly set. Fixes: 08333b911f01 ("remoteproc: Directly use ida_alloc()/free()") Signed-off-by: Arnaud Pouliquen Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20241122175127.2188037-1-arnaud.pouliquen@foss.st.com Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman

remoteproc: mtk_scp: Only populate devices for SCP cores

2025-02-08T09:02:00+00:00

[ Upstream commit dbb9c372555c0b2a5a9264418bfba6d017752808 ] When multi-core SCP support was added, the driver was made to populate platform devices for all the sub-nodes. This ended up adding platform devices for the rpmsg sub-nodes as well, which never actually get used, since rpmsg devices are registered through the rpmsg interface. Limit of_platform_populate() to just populating the SCP cores with a compatible string match list. Fixes: 1fdbf0cdde98 ("remoteproc: mediatek: Probe SCP cluster on multi-core SCP") Cc: Tinghan Shen Signed-off-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20241211072009.120511-1-wenst@chromium.org Signed-off-by: Mathieu Poirier Signed-off-by: Sasha Levin

remoteproc: qcom: wcss: Remove double assignment in q6v5_wcss_probe()

2024-11-16T04:36:27+00:00

cocci report a double assignment warning.'wcss->version' was assigned twice in 'q6v5_wcss_probe()'. Signed-off-by: Yuesong Li Link: https://lore.kernel.org/r/20240823065546.3371378-1-liyuesong@vivo.com Signed-off-by: Bjorn Andersson

remoteproc: qcom_q6v5_mss: Re-order writes to the IMEM region

2024-11-16T03:36:38+00:00

Any write access to the IMEM region when the Q6 is setting up XPU protection on it will result in a XPU violation. Fix this by ensuring IMEM writes related to the MBA post-mortem logs happen before the Q6 is brought out of reset. Fixes: 318130cc9362 ("remoteproc: qcom_q6v5_mss: Add MBA log extraction support") Signed-off-by: Sibi Sankar Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Link: https://lore.kernel.org/r/20240819073020.3291287-1-quic_sibis@quicinc.com Signed-off-by: Bjorn Andersson

remoteproc: qcom_wcnss_iris: Simplify with dev_err_probe()

2024-11-16T03:31:47+00:00

Use dev_err_probe() to make error and defer code handling simpler. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20241011-remote-proc-dev-err-probe-v1-10-5abb4fc61eca@linaro.org Signed-off-by: Bjorn Andersson

remoteproc: qcom_q6v5_wcss: Simplify with dev_err_probe()

2024-11-16T03:31:47+00:00

Use dev_err_probe() to make error and defer code handling simpler. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20241011-remote-proc-dev-err-probe-v1-9-5abb4fc61eca@linaro.org Signed-off-by: Bjorn Andersson

remoteproc: qcom_q6v5_pas: Simplify with dev_err_probe()

2024-11-16T03:31:47+00:00

Use dev_err_probe() to make error and defer code handling simpler. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20241011-remote-proc-dev-err-probe-v1-8-5abb4fc61eca@linaro.org Signed-off-by: Bjorn Andersson

remoteproc: qcom_q6v5_mss: Drop redundant error printks in probe

2024-11-16T03:31:47+00:00

Do not print errors of getting clocks and regulators in probe twice: once in q6v5_init_clocks() or q6v5_regulator_init() and then again in the probe function. This also avoids dmesg flood on deferred probe. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20241011-remote-proc-dev-err-probe-v1-7-5abb4fc61eca@linaro.org Signed-off-by: Bjorn Andersson

remoteproc: qcom_q6v5_mss: Simplify with dev_err_probe()

2024-11-16T03:31:47+00:00

Use dev_err_probe() to make error and defer code handling simpler. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20241011-remote-proc-dev-err-probe-v1-6-5abb4fc61eca@linaro.org Signed-off-by: Bjorn Andersson