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accel/habanalabs: use notifications and graceful reset for decoder

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Add notifications to user in case of decoder abnormal interrupts, and
use the graceful reset mechanism if reset is required.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tomer Tayar 2023-02-06 14:33:00 +02:00 committed by Oded Gabbay
parent 86b74d8438
commit 81e609bebb
1 changed files with 16 additions and 6 deletions
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22
drivers/accel/habanalabs/common/decoder.c
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@ -46,7 +46,7 @@ static void dec_print_abnrm_intr_source(struct hl_device *hdev, u32 irq_status)
static void dec_error_intr_work(struct hl_device *hdev, u32 base_addr, u32 core_id)
{
bool reset_required = false;
u32 irq_status;
u32 irq_status, event_mask;
irq_status = RREG32(base_addr + VCMD_IRQ_STATUS_OFFSET);
@ -54,17 +54,27 @@ static void dec_error_intr_work(struct hl_device *hdev, u32 base_addr, u32 core_
dec_print_abnrm_intr_source(hdev, irq_status);
if (irq_status & VCMD_IRQ_STATUS_TIMEOUT_MASK)
reset_required = true;
/* Clear the interrupt */
WREG32(base_addr + VCMD_IRQ_STATUS_OFFSET, irq_status);
/* Flush the interrupt clear */
RREG32(base_addr + VCMD_IRQ_STATUS_OFFSET);
if (reset_required)
hl_device_reset(hdev, HL_DRV_RESET_HARD);
if (irq_status & VCMD_IRQ_STATUS_TIMEOUT_MASK) {
reset_required = true;
event_mask = HL_NOTIFIER_EVENT_GENERAL_HW_ERR;
} else if (irq_status & VCMD_IRQ_STATUS_CMDERR_MASK) {
event_mask = HL_NOTIFIER_EVENT_UNDEFINED_OPCODE;
} else {
event_mask = HL_NOTIFIER_EVENT_USER_ENGINE_ERR;
}
if (reset_required) {
event_mask |= HL_NOTIFIER_EVENT_DEVICE_RESET;
hl_device_cond_reset(hdev, 0, event_mask);
} else {
hl_notifier_event_send_all(hdev, event_mask);
}
}
static void dec_completion_abnrm(struct work_struct *work)