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Date: Mon, 4 Jul 2022 12:29:32 +0300
From: Oded Gabbay <ogabbay@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Ofir Bitton <obitton@...ana.ai>
Subject: [PATCH 03/12] habanalabs: naming refactor of user interrupt flow
From: Ofir Bitton <obitton@...ana.ai>
Current naming convention can be misleading. Hence renaming some
variables and defines in order to be more explicit.
Signed-off-by: Ofir Bitton <obitton@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
drivers/misc/habanalabs/common/command_submission.c | 6 +++---
drivers/misc/habanalabs/common/habanalabs.h | 8 ++++----
drivers/misc/habanalabs/common/irq.c | 12 ++++++------
drivers/misc/habanalabs/gaudi2/gaudi2.c | 6 +++---
include/uapi/misc/habanalabs.h | 7 +++++--
5 files changed, 21 insertions(+), 18 deletions(-)
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c
index e91ca31d4930..275dcb69a40e 100644
--- a/drivers/misc/habanalabs/common/command_submission.c
+++ b/drivers/misc/habanalabs/common/command_submission.c
@@ -1080,7 +1080,7 @@ void hl_release_pending_user_interrupts(struct hl_device *hdev)
wake_pending_user_interrupt_threads(interrupt);
}
- interrupt = &hdev->common_user_interrupt;
+ interrupt = &hdev->common_user_cq_interrupt;
wake_pending_user_interrupt_threads(interrupt);
}
@@ -3373,8 +3373,8 @@ static int hl_interrupt_wait_ioctl(struct hl_fpriv *hpriv, void *data)
int_idx = interrupt_id - first_interrupt + prop->user_dec_intr_count;
interrupt = &hdev->user_interrupt[int_idx];
- } else if (interrupt_id == HL_COMMON_USER_INTERRUPT_ID) {
- interrupt = &hdev->common_user_interrupt;
+ } else if (interrupt_id == HL_COMMON_USER_CQ_INTERRUPT_ID) {
+ interrupt = &hdev->common_user_cq_interrupt;
} else {
dev_err(hdev->dev, "invalid user interrupt %u", interrupt_id);
return -EINVAL;
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index 8c38c2c1b1dc..9b2451f3619a 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -76,7 +76,7 @@ struct hl_fpriv;
#define HL_INVALID_QUEUE UINT_MAX
-#define HL_COMMON_USER_INTERRUPT_ID 0xFFF
+#define HL_COMMON_USER_CQ_INTERRUPT_ID 0xFFF
#define HL_STATE_DUMP_HIST_LEN 5
@@ -2952,8 +2952,8 @@ struct hl_reset_info {
* @user_interrupt: array of hl_user_interrupt. upon the corresponding user
* interrupt, driver will monitor the list of fences
* registered to this interrupt.
- * @common_user_interrupt: common user interrupt for all user interrupts.
- * upon any user interrupt, driver will monitor the
+ * @common_user_cq_interrupt: common user CQ interrupt for all user CQ interrupts.
+ * upon any user CQ interrupt, driver will monitor the
* list of fences registered to this common structure.
* @shadow_cs_queue: pointer to a shadow queue that holds pointers to
* outstanding command submissions.
@@ -3118,7 +3118,7 @@ struct hl_device {
enum hl_asic_type asic_type;
struct hl_cq *completion_queue;
struct hl_user_interrupt *user_interrupt;
- struct hl_user_interrupt common_user_interrupt;
+ struct hl_user_interrupt common_user_cq_interrupt;
struct hl_cs **shadow_cs_queue;
struct workqueue_struct **cq_wq;
struct workqueue_struct *eq_wq;
diff --git a/drivers/misc/habanalabs/common/irq.c b/drivers/misc/habanalabs/common/irq.c
index c1088377d1de..fd8f2bd9020e 100644
--- a/drivers/misc/habanalabs/common/irq.c
+++ b/drivers/misc/habanalabs/common/irq.c
@@ -269,7 +269,7 @@ static int handle_registration_node(struct hl_device *hdev, struct hl_user_pendi
return 0;
}
-static void handle_user_cq(struct hl_device *hdev, struct hl_user_interrupt *user_cq)
+static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interrupt *intr)
{
struct hl_user_pending_interrupt *pend, *temp_pend;
struct list_head *ts_reg_free_list_head = NULL;
@@ -291,8 +291,8 @@ static void handle_user_cq(struct hl_device *hdev, struct hl_user_interrupt *use
if (!job)
return;
- spin_lock(&user_cq->wait_list_lock);
- list_for_each_entry_safe(pend, temp_pend, &user_cq->wait_list_head, wait_list_node) {
+ spin_lock(&intr->wait_list_lock);
+ list_for_each_entry_safe(pend, temp_pend, &intr->wait_list_head, wait_list_node) {
if ((pend->cq_kernel_addr && *(pend->cq_kernel_addr) >= pend->cq_target_value) ||
!pend->cq_kernel_addr) {
if (pend->ts_reg_info.buf) {
@@ -309,7 +309,7 @@ static void handle_user_cq(struct hl_device *hdev, struct hl_user_interrupt *use
}
}
}
- spin_unlock(&user_cq->wait_list_lock);
+ spin_unlock(&intr->wait_list_lock);
if (ts_reg_free_list_head) {
INIT_WORK(&job->free_obj, hl_ts_free_objects);
@@ -339,10 +339,10 @@ irqreturn_t hl_irq_handler_user_interrupt(int irq, void *arg)
*/
if (!user_int->is_decoder)
/* Handle user cq interrupts registered on all interrupts */
- handle_user_cq(hdev, &hdev->common_user_interrupt);
+ handle_user_interrupt(hdev, &hdev->common_user_cq_interrupt);
/* Handle user cq or decoder interrupts registered on this specific irq */
- handle_user_cq(hdev, user_int);
+ handle_user_interrupt(hdev, user_int);
return IRQ_HANDLED;
}
diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c
index 5e6df7814fb1..5f61c45e4695 100644
--- a/drivers/misc/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c
@@ -2891,9 +2891,9 @@ static void gaudi2_user_interrupt_setup(struct hl_device *hdev)
struct asic_fixed_properties *prop = &hdev->asic_prop;
int i, j, k;
- /* Initialize common user interrupt */
- HL_USR_INTR_STRUCT_INIT(hdev->common_user_interrupt, hdev, HL_COMMON_USER_INTERRUPT_ID,
- false);
+ /* Initialize common user CQ interrupt */
+ HL_USR_INTR_STRUCT_INIT(hdev->common_user_cq_interrupt, hdev,
+ HL_COMMON_USER_CQ_INTERRUPT_ID, false);
/* User interrupts structure holds both decoder and user interrupts from various engines.
* We first initialize the decoder interrupts and then we add the user interrupts.
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 77b89c537ee8..4ee24a3a13e9 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -1442,6 +1442,7 @@ union hl_cs_args {
#define HL_WAIT_CS_FLAGS_INTERRUPT 0x2
#define HL_WAIT_CS_FLAGS_INTERRUPT_MASK 0xFFF00000
+#define HL_WAIT_CS_FLAGS_ANY_CQ_INTERRUPT 0xFFF00000
#define HL_WAIT_CS_FLAGS_MULTI_CS 0x4
#define HL_WAIT_CS_FLAGS_INTERRUPT_KERNEL_CQ 0x10
#define HL_WAIT_CS_FLAGS_REGISTER_INTERRUPT 0x20
@@ -1491,8 +1492,10 @@ struct hl_wait_cs_in {
/* HL_WAIT_CS_FLAGS_*
* If HL_WAIT_CS_FLAGS_INTERRUPT is set, this field should include
- * interrupt id according to HL_WAIT_CS_FLAGS_INTERRUPT_MASK, in order
- * not to specify an interrupt id ,set mask to all 1s.
+ * interrupt id according to HL_WAIT_CS_FLAGS_INTERRUPT_MASK
+ *
+ * in order to wait for any CQ interrupt, set interrupt value to
+ * HL_WAIT_CS_FLAGS_ANY_CQ_INTERRUPT.
*/
__u32 flags;
--
2.25.1
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