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authorStanimir Varbanov <stanimir.varbanov@linaro.org>2021-04-23 08:24:54 +0100
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-10-21 14:20:26 +0100
commitb46ff4eb34ce250df30dc239bab5fedc64c317ed (patch)
tree73870904eeff10a4f881a04ca000eb76a0b71ffc /drivers/media
parent3f3e877ce8efabe44ddc8e13885f99cdc770e198 (diff)
downloadlinux-b46ff4eb34ce250df30dc239bab5fedc64c317ed.tar.bz2
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 <stanimir.varbanov@linaro.org> Tested-by: Vikash Garodia <vgarodia@codeaurora.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/qcom/venus/core.c4
-rw-r--r--drivers/media/platform/qcom/venus/core.h3
-rw-r--r--drivers/media/platform/qcom/venus/helpers.c2
-rw-r--r--drivers/media/platform/qcom/venus/hfi.c2
-rw-r--r--drivers/media/platform/qcom/venus/vdec.c2
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 de7b32caa8b8..0f31cc5668c1 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 a3f077f64be0..46d87a1226ff 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 <linux/bitops.h>
#include <linux/list.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-ctrls.h>
@@ -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 7f2f5b91caaa..8cebb8e29aed 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 0f2482367e06..179b1f8b2650 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 41c5a353fcae..11990a95d346 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)