diff options
| author |  Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
| 2023-10-28 15:34:15 +0200 |
|---|---|---|
| committer |  Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
| 2023-10-30 11:06:13 +0100 |
| commit | 3198a62eb8f8411b605501cb78c2298c67ecee91 (patch) | |
| tree | dee56a851acfd7688dec75dcd7b4e8a6d416e987 /drivers/accel/ivpu/ivpu_jsm_msg.h | |
| parent | accel/ivpu/37xx: Print warning when VPUIP is not idle during power down (diff) | |
| download | linux-3198a62eb8f8411b605501cb78c2298c67ecee91.tar.gz linux-3198a62eb8f8411b605501cb78c2298c67ecee91.tar.bz2 linux-3198a62eb8f8411b605501cb78c2298c67ecee91.zip | |
accel/ivpu: Add support for delayed D0i3 entry message
Currently the VPU firmware prepares for D0i3 every time the VPU
is entering D0i2 Idle state. This is not optimal as we might not
enter D0i3 every time we enter D0i2 Idle and this preparation
is quite costly.
This optimization moves D0i3 preparation to a dedicated
message sent from the host driver only when the driver is about
to enter D0i3 - this reduces power consumption and latency for
certain workloads, for example audio workloads that submit
inference every 10 ms.
The VPU needs non zero time to enter IDLE state after responding to
D0i3 entry message. If the driver does not wait for the VPU to enter
IDLE state it could cause warm boot failures.
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231028133415.1169975-12-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_jsm_msg.h')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_jsm_msg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_jsm_msg.h b/drivers/accel/ivpu/ivpu_jsm_msg.h index 66979a948c7c..ae75e5dbcc41 100644 --- a/drivers/accel/ivpu/ivpu_jsm_msg.h +++ b/drivers/accel/ivpu/ivpu_jsm_msg.h @@ -22,4 +22,5 @@ int ivpu_jsm_trace_get_capability(struct ivpu_device *vdev, u32 *trace_destinati int ivpu_jsm_trace_set_config(struct ivpu_device *vdev, u32 trace_level, u32 trace_destination_mask, u64 trace_hw_component_mask); int ivpu_jsm_context_release(struct ivpu_device *vdev, u32 host_ssid); +int ivpu_jsm_pwr_d0i3_enter(struct ivpu_device *vdev); #endif |