From b46ff4eb34ce250df30dc239bab5fedc64c317ed Mon Sep 17 00:00:00 2001 From: Stanimir Varbanov Date: Fri, 23 Apr 2021 08:24:54 +0100 Subject: [PATCH] media: venus: Make sys_error flag an atomic bitops Make the sys_error flag an atomic bitops in order to avoid locking in sys_error readers. Signed-off-by: Stanimir Varbanov Tested-by: Vikash Garodia Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/qcom/venus/core.c | 4 ++-- drivers/media/platform/qcom/venus/core.h | 3 ++- drivers/media/platform/qcom/venus/helpers.c | 2 +- drivers/media/platform/qcom/venus/hfi.c | 2 +- drivers/media/platform/qcom/venus/vdec.c | 2 +- 5 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index de7b32c..0f31cc5 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -65,7 +65,7 @@ static void venus_event_notify(struct venus_core *core, u32 event) } mutex_lock(&core->lock); - core->sys_error = true; + set_bit(0, &core->sys_error); list_for_each_entry(inst, &core->instances, list) inst->ops->event_notify(inst, EVT_SESSION_ERROR, NULL); mutex_unlock(&core->lock); @@ -161,7 +161,7 @@ static void venus_sys_error_handler(struct work_struct *work) dev_warn(core->dev, "system error has occurred (recovered)\n"); mutex_lock(&core->lock); - core->sys_error = false; + clear_bit(0, &core->sys_error); mutex_unlock(&core->lock); } diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index a3f077f..46d87a1 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -7,6 +7,7 @@ #ifndef __VENUS_CORE_H_ #define __VENUS_CORE_H_ +#include #include #include #include @@ -182,7 +183,7 @@ struct venus_core { unsigned int state; struct completion done; unsigned int error; - bool sys_error; + unsigned long sys_error; const struct hfi_core_ops *core_ops; const struct venus_pm_ops *pm_ops; struct mutex pm_lock; diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c index 7f2f5b9..8cebb8e 100644 --- a/drivers/media/platform/qcom/venus/helpers.c +++ b/drivers/media/platform/qcom/venus/helpers.c @@ -1486,7 +1486,7 @@ void venus_helper_vb2_stop_streaming(struct vb2_queue *q) ret |= venus_helper_intbufs_free(inst); ret |= hfi_session_deinit(inst); - if (inst->session_error || core->sys_error) + if (inst->session_error || test_bit(0, &core->sys_error)) ret = -EIO; if (ret) diff --git a/drivers/media/platform/qcom/venus/hfi.c b/drivers/media/platform/qcom/venus/hfi.c index 0f248236..179b1f8 100644 --- a/drivers/media/platform/qcom/venus/hfi.c +++ b/drivers/media/platform/qcom/venus/hfi.c @@ -214,7 +214,7 @@ int hfi_session_init(struct venus_inst *inst, u32 pixfmt) * session_init() can't pass successfully */ mutex_lock(&core->lock); - if (!core->ops || core->sys_error) { + if (!core->ops || test_bit(0, &inst->core->sys_error)) { mutex_unlock(&core->lock); return -EIO; } diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index 41c5a35..11990a9 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -1231,7 +1231,7 @@ static void vdec_session_release(struct venus_inst *inst) ret = hfi_session_deinit(inst); abort = (ret && ret != -EINVAL) ? 1 : 0; - if (inst->session_error || core->sys_error) + if (inst->session_error || test_bit(0, &core->sys_error)) abort = 1; if (abort) -- 2.7.4