linux.git/drivers/remoteproc, branch v6.1.2

remoteproc: qcom: q6v5: Fix missing clk_disable_unprepare() in q6v5_wcss_qcs404_power_on()

2022-12-31T12:32:52+00:00

[ Upstream commit 7ff5d60f18bba5cbaf17b2926aa9da44d5beca01 ]

q6v5_wcss_qcs404_power_on() have no fail path for readl_poll_timeout().
Add fail path for readl_poll_timeout().

Fixes: 0af65b9b915e ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Signed-off-by: Shang XiaoJing 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221204082757.18850-1-shangxiaojing@huawei.com
Signed-off-by: Sasha Levin

remoteproc: qcom_q6v5_pas: Fix missing of_node_put() in adsp_alloc_memory_region()

2022-12-31T12:32:52+00:00

[ Upstream commit 38e7d9c19276832ebb0277f415b9214bf7baeb37 ]

The pointer node is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.

Fixes: b9e718e950c3 ("remoteproc: Introduce Qualcomm ADSP PIL")
Signed-off-by: Yuan Can 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221203070639.15128-1-yuancan@huawei.com
Signed-off-by: Sasha Levin

remoteproc: qcom_q6v5_pas: detach power domains on remove

2022-12-31T12:32:52+00:00

[ Upstream commit 34d01df00b84127be04c914fc9f8e8be1fcdf851 ]

We need to detach from the power domains also on remove, not just on
probe fail so a subsequent probe works as expected.

Otherwise the following error appears on re-probe:

[   29.452005] sysfs: cannot create duplicate filename '/devices/genpd:0:3000000.remoteproc'
[   29.477121] CPU: 1 PID: 483 Comm: sh Tainted: G        W          6.1.0-rc4-00075-g71a113770bda #78
[   29.510319] Hardware name: Fairphone 4 (DT)
[   29.538335] Call trace:
[   29.564470]  dump_backtrace.part.0+0xe0/0xf0
[   29.592602]  show_stack+0x18/0x30
[   29.619616]  dump_stack_lvl+0x64/0x80
[   29.646834]  dump_stack+0x18/0x34
[   29.673541]  sysfs_warn_dup+0x60/0x7c
[   29.700592]  sysfs_create_dir_ns+0xec/0x110
[   29.728057]  kobject_add_internal+0xb8/0x374
[   29.755530]  kobject_add+0x9c/0x104
[   29.782072]  device_add+0xbc/0x8a0
[   29.808445]  device_register+0x20/0x30
[   29.835175]  genpd_dev_pm_attach_by_id+0xa4/0x190
[   29.862851]  genpd_dev_pm_attach_by_name+0x3c/0xb0
[   29.890472]  dev_pm_domain_attach_by_name+0x20/0x30
[   29.918212]  adsp_probe+0x278/0x580
[   29.944384]  platform_probe+0x68/0xc0
[   29.970603]  really_probe+0xbc/0x2dc
[   29.996662]  __driver_probe_device+0x78/0xe0
[   30.023491]  device_driver_attach+0x48/0xac
[   30.050215]  bind_store+0xb8/0x114
[   30.075957]  drv_attr_store+0x24/0x3c
[   30.101874]  sysfs_kf_write+0x44/0x54
[   30.127751]  kernfs_fop_write_iter+0x120/0x1f0
[   30.154448]  vfs_write+0x1ac/0x380
[   30.179937]  ksys_write+0x70/0x104
[   30.205274]  __arm64_sys_write+0x1c/0x2c
[   30.231060]  invoke_syscall+0x48/0x114
[   30.256594]  el0_svc_common.constprop.0+0x44/0xec
[   30.283183]  do_el0_svc+0x2c/0xd0
[   30.308320]  el0_svc+0x2c/0x84
[   30.333059]  el0t_64_sync_handler+0xf4/0x120
[   30.359001]  el0t_64_sync+0x18c/0x190
[   30.384385] kobject_add_internal failed for genpd:0:3000000.remoteproc with -EEXIST, don't try to register things with the same name in the same directory.
[   30.406029] remoteproc remoteproc0: releasing 3000000.remoteproc
[   30.416064] qcom_q6v5_pas: probe of 3000000.remoteproc failed with error -17

Fixes: 17ee2fb4e856 ("remoteproc: qcom: pas: Vote for active/proxy power domains")
Reviewed-by: Sibi Sankar 
Reviewed-by: Mukesh Ojha 
Signed-off-by: Luca Weiss 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221118090816.100012-2-luca.weiss@fairphone.com
Signed-off-by: Sasha Levin

remoteproc: qcom_q6v5_pas: disable wakeup on probe fail or remove

2022-12-31T12:32:52+00:00

[ Upstream commit 9a70551996e699fda262e8d54bbd41739d7aad6d ]

Leaving wakeup enabled during probe fail (-EPROBE_DEFER) or remove makes
the subsequent probe fail.

[    3.749454] remoteproc remoteproc0: releasing 3000000.remoteproc
[    3.752949] qcom_q6v5_pas: probe of 3000000.remoteproc failed with error -17
[    3.878935] remoteproc remoteproc0: releasing 4080000.remoteproc
[    3.887602] qcom_q6v5_pas: probe of 4080000.remoteproc failed with error -17
[    4.319552] remoteproc remoteproc0: releasing 8300000.remoteproc
[    4.332716] qcom_q6v5_pas: probe of 8300000.remoteproc failed with error -17

Fix this by disabling wakeup in both cases so the driver can properly
probe on the next try.

Fixes: a781e5aa5911 ("remoteproc: core: Prevent system suspend during remoteproc recovery")
Fixes: dc86c129b4fb ("remoteproc: qcom: pas: Mark devices as wakeup capable")
Reviewed-by: Mukesh Ojha 
Signed-off-by: Luca Weiss 
Reviewed-by: Caleb Connolly 
Reviewed-by: Sibi Sankar 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221118090816.100012-1-luca.weiss@fairphone.com
Signed-off-by: Sasha Levin

remoteproc: qcom: q6v5: Fix potential null-ptr-deref in q6v5_wcss_init_mmio()

2022-12-31T12:32:52+00:00

[ Upstream commit f360e2b275efbb745ba0af8b47d9ef44221be586 ]

q6v5_wcss_init_mmio() will call platform_get_resource_byname() that may
fail and return NULL. devm_ioremap() will use res->start as input, which
may causes null-ptr-deref. Check the ret value of
platform_get_resource_byname() to avoid the null-ptr-deref.

Fixes: 0af65b9b915e ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Signed-off-by: Shang XiaoJing 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221125021641.29392-1-shangxiaojing@huawei.com
Signed-off-by: Sasha Levin

remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev()

2022-12-31T12:32:52+00:00

[ Upstream commit e01ce676aaef3b13d02343d7e70f9637d93a3367 ]

The kfree() should be called when of_irq_get_byname() fails or
devm_request_threaded_irq() fails in qcom_add_sysmon_subdev(),
otherwise there will be a memory leak, so add kfree() to fix it.

Fixes: 027045a6e2b7 ("remoteproc: qcom: Add shutdown-ack irq")
Signed-off-by: Gaosheng Cui 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20221129105650.1539187-1-cuigaosheng1@huawei.com
Signed-off-by: Sasha Levin

remoteproc: core: Auto select rproc-virtio device id

2022-12-31T12:32:46+00:00

[ Upstream commit 65fcf3872f83d63fb7268e05d4b02640df14126e ]

With multiple remoteproc device, there will below error:

sysfs: cannot create duplicate filename '/bus/platform/devices/rproc-virtio.0'

The rvdev_data.index is duplicate, that cause issue, so
need to use the PLATFORM_DEVID_AUTO instead. After fixing
device name it becomes something like:
/bus/platform/devices/rproc-virtio.2.auto

Fixes: 1d7b61c06dc3 ("remoteproc: virtio: Create platform device for the remoteproc_virtio")
Signed-off-by: Shengjiu Wang 
Reviewed-by: Arnaud Pouliquen 
Reviewed-by: Mukesh Ojha 
Tested-by: Peng Fan 
Link: https://lore.kernel.org/r/1666100644-27010-1-git-send-email-shengjiu.wang@nxp.com
[Fixed typographical error in comment block]
Signed-off-by: Mathieu Poirier 
Signed-off-by: Sasha Levin

remoteproc: virtio: Fix warning on bindings by removing the of_match_table

2022-10-05T15:20:44+00:00

The checkpatch tool complains that "virtio,rproc" is not documented.
But it is not possible to probe the device "rproc-virtio" by declaring
it in the device tree. So documenting it in the bindings does not make
sense.
This commit solves the checkpatch warning by suppressing the useless
of_match_table.

Suggested-by: Rob Herring 
Fixes: 1d7b61c06dc3 ("remoteproc: virtio: Create platform device for the remoteproc_virtio")
Signed-off-by: Arnaud Pouliquen 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20221005081317.3411684-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Mathieu Poirier

remoteproc: Support attach recovery after rproc crash

2022-09-28T16:47:07+00:00

Current logic only support main processor to stop/start the remote
processor after crash. However to SoC, such as i.MX8QM/QXP, the
remote processor could do attach recovery after crash and trigger watchdog
to reboot itself. It does not need main processor to load image, or
stop/start remote processor.

Introduce two functions: rproc_attach_recovery, rproc_boot_recovery
for the two cases. Boot recovery is as before, let main processor to
help recovery, while attach recovery is to recover itself without help.
To attach recovery, we only do detach and attach.

Acked-by: Arnaud Pouliquen 
Signed-off-by: Peng Fan 
Link: https://lore.kernel.org/r/20220928064756.4059662-3-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier

remoteproc: Introduce rproc features

2022-09-28T16:46:21+00:00

remote processor may support:
 - boot recovery with help from main processor
 - self recovery without help from main processor
 - iommu
 - etc

Introduce rproc features could simplify code to avoid adding more bool
flags

Acked-by: Arnaud Pouliquen 
Signed-off-by: Peng Fan 
Link: https://lore.kernel.org/r/20220928064756.4059662-2-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier