diff options
| author | Chris Lew <quic_clew@quicinc.com> | 2024-05-29 11:09:57 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 07:56:32 +0200 |
| commit | 1e0ecab555b9a94f5921b487ff01c8a668651447 (patch) | |
| tree | da55ac57962a3bc8c8abe06be7fa07141174fcd5 /include/linux | |
| parent | 145c38e5b540713eca2b0384e725c99d9ab3f9af (diff) | |
soc: qcom: smem: Add qcom_smem_bust_hwspin_lock_by_host()
[ Upstream commit 2e3f0d693875db698891ffe89a18121bda5b95b8 ]
Add qcom_smem_bust_hwspin_lock_by_host to enable remoteproc to bust the
hwspin_lock owned by smem. In the event the remoteproc crashes
unexpectedly, the remoteproc driver can invoke this API to try and bust
the hwspin_lock and release the lock if still held by the remoteproc
device.
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Link: https://lore.kernel.org/r/20240529-hwspinlock-bust-v3-3-c8b924ffa5a2@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/soc/qcom/smem.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h index a36a3b9d4929..03187bc95851 100644 --- a/include/linux/soc/qcom/smem.h +++ b/include/linux/soc/qcom/smem.h @@ -14,4 +14,6 @@ phys_addr_t qcom_smem_virt_to_phys(void *p); int qcom_smem_get_soc_id(u32 *id); +int qcom_smem_bust_hwspin_lock_by_host(unsigned int host); + #endif |