diff options
| author | Karol Wachowski <karol.wachowski@linux.intel.com> | 2026-03-23 10:50:29 +0100 |
|---|---|---|
| committer | Karol Wachowski <karol.wachowski@linux.intel.com> | 2026-03-24 09:29:28 +0100 |
| commit | e8ab57b56402697a9bef50b71aecc613f0d61846 (patch) | |
| tree | b47f3a47135e38ca9e171e411b3a221ea58cb148 /drivers/accel | |
| parent | fc3bbf34e643faa8678aabdc3810c60109f3435a (diff) | |
accel/ivpu: Add disable clock relinquish workaround for NVL-A0
Turn on disable clock relinquish workaround for Nova Lake A0.
Without this workaround NPU may not power off correctly after
inference, leading to unexpected system behavior.
Fixes: 550f4dd2cedd ("accel/ivpu: Add support for Nova Lake's NPU")
Cc: <stable@vger.kernel.org> # v6.19+
Reviewed-by: Lizhi.hou <lizhi.hou@amd.com>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20260323095029.64613-1-karol.wachowski@linux.intel.com
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_drv.h | 1 | ||||
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw.c | 6 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h index 5b34b6f50e69..f1b6155065ff 100644 --- a/drivers/accel/ivpu/ivpu_drv.h +++ b/drivers/accel/ivpu/ivpu_drv.h @@ -35,6 +35,7 @@ #define IVPU_HW_IP_60XX 60 #define IVPU_HW_IP_REV_LNL_B0 4 +#define IVPU_HW_IP_REV_NVL_A0 0 #define IVPU_HW_BTRS_MTL 1 #define IVPU_HW_BTRS_LNL 2 diff --git a/drivers/accel/ivpu/ivpu_hw.c b/drivers/accel/ivpu/ivpu_hw.c index d69cd0d93569..d4a9bcda4100 100644 --- a/drivers/accel/ivpu/ivpu_hw.c +++ b/drivers/accel/ivpu/ivpu_hw.c @@ -70,8 +70,10 @@ static void wa_init(struct ivpu_device *vdev) if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL) vdev->wa.interrupt_clear_with_0 = ivpu_hw_btrs_irqs_clear_with_0_mtl(vdev); - if (ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL && - ivpu_revision(vdev) < IVPU_HW_IP_REV_LNL_B0) + if ((ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL && + ivpu_revision(vdev) < IVPU_HW_IP_REV_LNL_B0) || + (ivpu_device_id(vdev) == PCI_DEVICE_ID_NVL && + ivpu_revision(vdev) == IVPU_HW_IP_REV_NVL_A0)) vdev->wa.disable_clock_relinquish = true; if (ivpu_test_mode & IVPU_TEST_MODE_CLK_RELINQ_ENABLE) |