diff options
| author | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2023-10-03 09:42:13 +0300 |
|---|---|---|
| committer | Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> | 2023-10-19 07:48:05 +0300 |
| commit | 828d63042aeca132a93938b98dc7f1a6c97bbc51 (patch) | |
| tree | 57dcec27997b2242171d2064414280c207a81f5a /drivers/accel/ivpu/ivpu_hw.h | |
| parent | fa8391ad68c16716e2c06ada397e99ceed2fb647 (diff) | |
| download | linux-828d63042aeca132a93938b98dc7f1a6c97bbc51.tar.xz | |
accel/ivpu: Don't enter d0i3 during FLR
Avoid HW bug on some platforms where we enter D0i3 state
and CPU is in low power states (C8 or above).
Fixes: 852be13f3bd3 ("accel/ivpu: Add PM support")
Cc: stable@vger.kernel.org
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@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/20231003064213.1527327-1-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_hw.h')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_hw.h b/drivers/accel/ivpu/ivpu_hw.h index ab341237bcf9..1079e06255ba 100644 --- a/drivers/accel/ivpu/ivpu_hw.h +++ b/drivers/accel/ivpu/ivpu_hw.h @@ -13,6 +13,7 @@ struct ivpu_hw_ops { int (*power_up)(struct ivpu_device *vdev); int (*boot_fw)(struct ivpu_device *vdev); int (*power_down)(struct ivpu_device *vdev); + int (*reset)(struct ivpu_device *vdev); bool (*is_idle)(struct ivpu_device *vdev); void (*wdt_disable)(struct ivpu_device *vdev); void (*diagnose_failure)(struct ivpu_device *vdev); @@ -91,6 +92,13 @@ static inline int ivpu_hw_power_down(struct ivpu_device *vdev) return vdev->hw->ops->power_down(vdev); }; +static inline int ivpu_hw_reset(struct ivpu_device *vdev) +{ + ivpu_dbg(vdev, PM, "HW reset\n"); + + return vdev->hw->ops->reset(vdev); +}; + static inline void ivpu_hw_wdt_disable(struct ivpu_device *vdev) { vdev->hw->ops->wdt_disable(vdev); |