From: Oded Gabbay <ogabbay@kernel.org>
To: dri-devel@lists.freedesktop.org
Cc: Ofir Bitton <obitton@habana.ai>
Subject: [PATCH 19/27] habanalabs: capture interrupt timestamp in handler
Date: Sun, 12 Feb 2023 22:44:46 +0200 [thread overview]
Message-ID: <20230212204454.2938561-19-ogabbay@kernel.org> (raw)
In-Reply-To: <20230212204454.2938561-1-ogabbay@kernel.org>
From: Ofir Bitton <obitton@habana.ai>
In order for interrupt timestamp to be more accurate we should
capture it during the interrupt handling rather than in threaded
irq context.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
drivers/accel/habanalabs/common/habanalabs.h | 2 ++
drivers/accel/habanalabs/common/irq.c | 9 ++++++---
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h
index 5624ea19ec0b..24ad15272040 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -1107,6 +1107,7 @@ enum hl_user_interrupt_type {
* @type: user interrupt type
* @wait_list_head: head to the list of user threads pending on this interrupt
* @wait_list_lock: protects wait_list_head
+ * @timestamp: last timestamp taken upon interrupt
* @interrupt_id: msix interrupt id
*/
struct hl_user_interrupt {
@@ -1114,6 +1115,7 @@ struct hl_user_interrupt {
enum hl_user_interrupt_type type;
struct list_head wait_list_head;
spinlock_t wait_list_lock;
+ ktime_t timestamp;
u32 interrupt_id;
};
diff --git a/drivers/accel/habanalabs/common/irq.c b/drivers/accel/habanalabs/common/irq.c
index c61c9a294ab8..716228291b46 100644
--- a/drivers/accel/habanalabs/common/irq.c
+++ b/drivers/accel/habanalabs/common/irq.c
@@ -280,7 +280,6 @@ static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interru
struct list_head *ts_reg_free_list_head = NULL;
struct timestamp_reg_work_obj *job;
bool reg_node_handle_fail = false;
- ktime_t now = ktime_get();
int rc;
/* For registration nodes:
@@ -303,13 +302,13 @@ static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interru
if (pend->ts_reg_info.buf) {
if (!reg_node_handle_fail) {
rc = handle_registration_node(hdev, pend,
- &ts_reg_free_list_head, now);
+ &ts_reg_free_list_head, intr->timestamp);
if (rc)
reg_node_handle_fail = true;
}
} else {
/* Handle wait target value node */
- pend->fence.timestamp = now;
+ pend->fence.timestamp = intr->timestamp;
complete_all(&pend->fence.completion);
}
}
@@ -335,6 +334,10 @@ static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interru
*/
irqreturn_t hl_irq_handler_user_interrupt(int irq, void *arg)
{
+ struct hl_user_interrupt *user_int = arg;
+
+ user_int->timestamp = ktime_get();
+
return IRQ_WAKE_THREAD;
}
--
2.25.1
next prev parent reply other threads:[~2023-02-12 20:45 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-12 20:44 [PATCH 01/27] habanalabs/gaudi2: increase user interrupt grace time Oded Gabbay
2023-02-12 20:44 ` [PATCH 02/27] habanalabs/gaudi: capture RAZWI info only if HW indication detected Oded Gabbay
2023-02-12 20:44 ` [PATCH 03/27] habanalabs: split cdev creation to separate function Oded Gabbay
2023-02-16 10:40 ` Tomer Tayar
2023-02-12 20:44 ` [PATCH 04/27] habanalabs: save class in hdev Oded Gabbay
2023-02-16 10:40 ` Tomer Tayar
2023-02-12 20:44 ` [PATCH 05/27] habanalabs: refactor debugfs init Oded Gabbay
2023-02-16 10:40 ` Tomer Tayar
2023-02-12 20:44 ` [PATCH 06/27] habanalabs: use memhash_node_export_put() in hl_release_dmabuf() Oded Gabbay
2023-02-16 11:48 ` Stanislaw Gruszka
2023-02-16 14:26 ` Tomer Tayar
2023-02-16 14:40 ` Stanislaw Gruszka
2023-02-12 20:44 ` [PATCH 07/27] habanalabs/gaudi2: fix address decode RAZWI handling Oded Gabbay
2023-02-12 20:44 ` [PATCH 08/27] habanalabs: add info when FD released while device still in use Oded Gabbay
2023-02-16 12:25 ` Stanislaw Gruszka
2023-02-16 14:21 ` Oded Gabbay
2023-02-16 15:04 ` Stanislaw Gruszka
2023-02-17 11:34 ` Tomer Tayar
2023-02-20 15:54 ` Stanislaw Gruszka
2023-02-20 16:16 ` Tomer Tayar
2023-02-12 20:44 ` [PATCH 09/27] habanalabs: enforce release order of compute device and dma-buf Oded Gabbay
2023-02-12 20:44 ` [PATCH 10/27] habanalabs: add critical-event bit in notifier Oded Gabbay
2023-02-12 20:44 ` [PATCH 11/27] habanalabs/gaudi2: expose engine core int reg address Oded Gabbay
2023-02-12 20:44 ` [PATCH 12/27] habanalabs/gaudi2: unsecure CFG_TPC_ID register Oded Gabbay
2023-02-12 20:44 ` [PATCH 13/27] habanalabs: minimize error prints when mem map fails Oded Gabbay
2023-02-12 20:44 ` [PATCH 14/27] habanalabs: disable PCI when escalating compute to hard-reset Oded Gabbay
2023-02-12 20:44 ` [PATCH 15/27] habanalabs: enable graceful reset mechanism for compute-reset Oded Gabbay
2023-02-12 20:44 ` [PATCH 16/27] habanalabs/gaudi2: get reset type indication from irq_map Oded Gabbay
2023-02-12 20:44 ` [PATCH 17/27] habanalabs/gaudi2: modify events reset policy Oded Gabbay
2023-02-12 20:44 ` [PATCH 18/27] habanalabs: change user interrupt to threaded IRQ Oded Gabbay
2023-02-16 10:28 ` Stanislaw Gruszka
2023-02-16 13:47 ` Oded Gabbay
2023-02-16 14:29 ` Stanislaw Gruszka
2023-02-16 10:39 ` Stanislaw Gruszka
2023-02-16 13:49 ` Oded Gabbay
2023-02-12 20:44 ` Oded Gabbay [this message]
2023-02-16 14:39 ` [PATCH 19/27] habanalabs: capture interrupt timestamp in handler Stanislaw Gruszka
2023-02-19 12:42 ` Ofir Bitton
2023-02-12 20:44 ` [PATCH 20/27] habanalabs/gaudi2: add support for TPC assert Oded Gabbay
2023-02-12 20:44 ` [PATCH 21/27] habanalabs: fix print in hl_irq_handler_eq() Oded Gabbay
2023-02-12 20:44 ` [PATCH 22/27] habanalabs: remove hl_irq_handler_default() Oded Gabbay
2023-02-12 20:44 ` [PATCH 23/27] habanalabs: tiny refactor of hl_device_reset for readability Oded Gabbay
2023-02-12 20:44 ` [PATCH 24/27] habanalabs: rename security function parameters Oded Gabbay
2023-02-12 20:44 ` [PATCH 25/27] habanalabs: in hl_device_reset remove 'hard_instead_of_soft' Oded Gabbay
2023-02-12 20:44 ` [PATCH 26/27] habanalabs: in hl_device_reset small refactor for readabilty Oded Gabbay
2023-02-12 20:44 ` [PATCH 27/27] habanalabs: don't trace cpu accessible dma alloc/free Oded Gabbay
2023-02-16 10:53 ` [PATCH 01/27] habanalabs/gaudi2: increase user interrupt grace time Stanislaw Gruszka
2023-02-16 14:24 ` Oded Gabbay
2023-02-18 19:13 ` Ofir Bitton
2023-02-20 15:31 ` Stanislaw Gruszka
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