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-rw-r--r--drivers/accel/qaic/mhi_controller.c2
-rw-r--r--drivers/accel/qaic/qaic.h2
-rw-r--r--drivers/accel/qaic/qaic_drv.c44
3 files changed, 19 insertions, 29 deletions
diff --git a/drivers/accel/qaic/mhi_controller.c b/drivers/accel/qaic/mhi_controller.c
index 5d3cc30009cc..832464f2833a 100644
--- a/drivers/accel/qaic/mhi_controller.c
+++ b/drivers/accel/qaic/mhi_controller.c
@@ -469,7 +469,7 @@ static void mhi_status_cb(struct mhi_controller *mhi_cntrl, enum mhi_callback re
pci_err(qdev->pdev, "Fatal error received from device. Attempting to recover\n");
/* this event occurs in non-atomic context */
if (reason == MHI_CB_SYS_ERROR)
- qaic_dev_reset_clean_local_state(qdev, true);
+ qaic_dev_reset_clean_local_state(qdev);
}
static int mhi_reset_and_async_power_up(struct mhi_controller *mhi_cntrl)
diff --git a/drivers/accel/qaic/qaic.h b/drivers/accel/qaic/qaic.h
index cb04f7f9cdb3..582836f9538f 100644
--- a/drivers/accel/qaic/qaic.h
+++ b/drivers/accel/qaic/qaic.h
@@ -283,7 +283,7 @@ void wakeup_dbc(struct qaic_device *qdev, u32 dbc_id);
void release_dbc(struct qaic_device *qdev, u32 dbc_id);
void wake_all_cntl(struct qaic_device *qdev);
-void qaic_dev_reset_clean_local_state(struct qaic_device *qdev, bool exit_reset);
+void qaic_dev_reset_clean_local_state(struct qaic_device *qdev);
struct drm_gem_object *qaic_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);
diff --git a/drivers/accel/qaic/qaic_drv.c b/drivers/accel/qaic/qaic_drv.c
index 24b8680b2dbd..2a313eb69b12 100644
--- a/drivers/accel/qaic/qaic_drv.c
+++ b/drivers/accel/qaic/qaic_drv.c
@@ -8,6 +8,7 @@
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/list.h>
+#include <linux/kobject.h>
#include <linux/kref.h>
#include <linux/mhi.h>
#include <linux/module.h>
@@ -43,9 +44,6 @@ MODULE_PARM_DESC(datapath_polling, "Operate the datapath in polling mode");
static bool link_up;
static DEFINE_IDA(qaic_usrs);
-static int qaic_create_drm_device(struct qaic_device *qdev, s32 partition_id);
-static void qaic_destroy_drm_device(struct qaic_device *qdev, s32 partition_id);
-
static void free_usr(struct kref *kref)
{
struct qaic_user *usr = container_of(kref, struct qaic_user, ref_count);
@@ -183,13 +181,6 @@ static int qaic_create_drm_device(struct qaic_device *qdev, s32 partition_id)
qddev->partition_id = partition_id;
- /*
- * drm_dev_unregister() sets the driver data to NULL and
- * drm_dev_register() does not update the driver data. During a SOC
- * reset drm dev is unregistered and registered again leaving the
- * driver data to NULL.
- */
- dev_set_drvdata(to_accel_kdev(qddev), drm->accel);
ret = drm_dev_register(drm, 0);
if (ret)
pci_dbg(qdev->pdev, "drm_dev_register failed %d\n", ret);
@@ -203,7 +194,6 @@ static void qaic_destroy_drm_device(struct qaic_device *qdev, s32 partition_id)
struct drm_device *drm = to_drm(qddev);
struct qaic_user *usr;
- drm_dev_get(drm);
drm_dev_unregister(drm);
qddev->partition_id = 0;
/*
@@ -232,7 +222,6 @@ static void qaic_destroy_drm_device(struct qaic_device *qdev, s32 partition_id)
mutex_lock(&qddev->users_mutex);
}
mutex_unlock(&qddev->users_mutex);
- drm_dev_put(drm);
}
static int qaic_mhi_probe(struct mhi_device *mhi_dev, const struct mhi_device_id *id)
@@ -254,8 +243,6 @@ static int qaic_mhi_probe(struct mhi_device *mhi_dev, const struct mhi_device_id
qdev = pci_get_drvdata(to_pci_dev(mhi_dev->mhi_cntrl->cntrl_dev));
- qdev->dev_state = QAIC_ONLINE;
-
dev_set_drvdata(&mhi_dev->dev, qdev);
qdev->cntl_ch = mhi_dev;
@@ -265,6 +252,7 @@ static int qaic_mhi_probe(struct mhi_device *mhi_dev, const struct mhi_device_id
return ret;
}
+ qdev->dev_state = QAIC_BOOT;
ret = get_cntl_version(qdev, NULL, &major, &minor);
if (ret || major != CNTL_MAJOR || minor > CNTL_MINOR) {
pci_err(qdev->pdev, "%s: Control protocol version (%d.%d) not supported. Supported version is (%d.%d). Ret: %d\n",
@@ -272,8 +260,8 @@ static int qaic_mhi_probe(struct mhi_device *mhi_dev, const struct mhi_device_id
ret = -EINVAL;
goto close_control;
}
-
- ret = qaic_create_drm_device(qdev, QAIC_NO_PARTITION);
+ qdev->dev_state = QAIC_ONLINE;
+ kobject_uevent(&(to_accel_kdev(qdev->qddev))->kobj, KOBJ_ONLINE);
return ret;
@@ -291,6 +279,7 @@ static void qaic_notify_reset(struct qaic_device *qdev)
{
int i;
+ kobject_uevent(&(to_accel_kdev(qdev->qddev))->kobj, KOBJ_OFFLINE);
qdev->dev_state = QAIC_OFFLINE;
/* wake up any waiters to avoid waiting for timeouts at sync */
wake_all_cntl(qdev);
@@ -299,21 +288,15 @@ static void qaic_notify_reset(struct qaic_device *qdev)
synchronize_srcu(&qdev->dev_lock);
}
-void qaic_dev_reset_clean_local_state(struct qaic_device *qdev, bool exit_reset)
+void qaic_dev_reset_clean_local_state(struct qaic_device *qdev)
{
int i;
qaic_notify_reset(qdev);
- /* remove drmdevs to prevent new users from coming in */
- qaic_destroy_drm_device(qdev, QAIC_NO_PARTITION);
-
/* start tearing things down */
for (i = 0; i < qdev->num_dbc; ++i)
release_dbc(qdev, i);
-
- if (exit_reset)
- qdev->dev_state = QAIC_ONLINE;
}
static void cleanup_qdev(struct qaic_device *qdev)
@@ -338,6 +321,7 @@ static struct qaic_device *create_qdev(struct pci_dev *pdev, const struct pci_de
if (!qdev)
return NULL;
+ qdev->dev_state = QAIC_OFFLINE;
if (id->device == PCI_DEV_AIC100) {
qdev->num_dbc = 16;
qdev->dbc = devm_kcalloc(&pdev->dev, qdev->num_dbc, sizeof(*qdev->dbc), GFP_KERNEL);
@@ -499,15 +483,21 @@ static int qaic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto cleanup_qdev;
}
+ ret = qaic_create_drm_device(qdev, QAIC_NO_PARTITION);
+ if (ret)
+ goto cleanup_qdev;
+
qdev->mhi_cntrl = qaic_mhi_register_controller(pdev, qdev->bar_0, mhi_irq,
qdev->single_msi);
if (IS_ERR(qdev->mhi_cntrl)) {
ret = PTR_ERR(qdev->mhi_cntrl);
- goto cleanup_qdev;
+ goto cleanup_drm_dev;
}
return 0;
+cleanup_drm_dev:
+ qaic_destroy_drm_device(qdev, QAIC_NO_PARTITION);
cleanup_qdev:
cleanup_qdev(qdev);
return ret;
@@ -520,7 +510,8 @@ static void qaic_pci_remove(struct pci_dev *pdev)
if (!qdev)
return;
- qaic_dev_reset_clean_local_state(qdev, false);
+ qaic_dev_reset_clean_local_state(qdev);
+ qaic_destroy_drm_device(qdev, QAIC_NO_PARTITION);
qaic_mhi_free_controller(qdev->mhi_cntrl, link_up);
cleanup_qdev(qdev);
}
@@ -543,14 +534,13 @@ static void qaic_pci_reset_prepare(struct pci_dev *pdev)
qaic_notify_reset(qdev);
qaic_mhi_start_reset(qdev->mhi_cntrl);
- qaic_dev_reset_clean_local_state(qdev, false);
+ qaic_dev_reset_clean_local_state(qdev);
}
static void qaic_pci_reset_done(struct pci_dev *pdev)
{
struct qaic_device *qdev = pci_get_drvdata(pdev);
- qdev->dev_state = QAIC_ONLINE;
qaic_mhi_reset_done(qdev->mhi_cntrl);
}
generated by cgit (git 2.34.1) at 2024-06-12 19:29:59 +0000