From: Peng Fan <peng.fan@xxxxxxx> V7: Per comments from Arnaud Pouliquen: Typo fixes Added A-b tag V6: Rename rproc_firmware_recovery to rproc_boot_recovery Drop the unlock/lock when do reproc_attach_recovery V5: Rename RPROC_FEAT_ATTACH_RECOVERY to RPROC_FEAT_ATTACH_ON_RECOVERY Add kerneldoc for rproc features Change rproc_set_feature to return int type and add a max feature check Use __rproc_detach and __rproc_attach when do attach recovery https://patchwork.kernel.org/project/linux-remoteproc/cover/20220615032048.465486-1-peng.fan@xxxxxxxxxxx/ V4: Based on Bjorn's comments on V2-2 Move the rproc_has_feature/rproc_set_feature to remoteproc_internal.h and Keep rproc_features still in remoteproc.h, because we use RPROC_MAX_FEATURES to declare bitmap. Update commit log for patch 2/2, and add comments https://patchwork.kernel.org/project/linux-remoteproc/cover/20220323034405.976643-1-peng.fan@xxxxxxxxxxx/ V3: Resend the wrong labeled patchset https://patchwork.kernel.org/project/linux-remoteproc/list/?series=621311 Write a cover-letter To i.MX8QM/QXP, they have a M4 core self-recovery capability without Linux loading firmware. The self recovery is done by SCU(System Control Unit). Current remoteproc framework only support Linux help recovery remote processor(stop, loading firmware, start). This patchset is support remote processor self recovery(attach recovery). In order to avoid introducing a new variable(bool support_self_recovery), patch 1 introduce a new function, rproc_has_feature to make code easy to extend, cleaner, such as we could move "bool has_iommu" to rproc_has_feature(rproc, RPROC_FEAT_IOMMU). Patch 2 is introduce a new function rproc_attach_recovery for self recovery, the original logic move to rproc_firmware_recovery meaning needs linux to help recovery. V2-version 2: https://patchwork.kernel.org/project/linux-remoteproc/list/?series=621311 Introduce rproc_has_feature V2-version 1: https://patchwork.kernel.org/project/linux-remoteproc/patch/20220126085120.3397450-1-peng.fan@xxxxxxxxxxx/ Nothing change in V2. Only move this patch out from https://patchwork.kernel.org/project/linux-remoteproc/list/?series=604364 Peng Fan (2): remoteproc: introduce rproc features remoteproc: support attach recovery after rproc crash drivers/remoteproc/remoteproc_core.c | 62 ++++++++++++++++-------- drivers/remoteproc/remoteproc_internal.h | 15 ++++++ include/linux/remoteproc.h | 16 ++++++ 3 files changed, 74 insertions(+), 19 deletions(-) -- 2.25.1
