diff options
| author |   Wachowski, Karol <karol.wachowski@intel.com> | 2024-06-11 14:04:18 +0200 |
|---|---|---|
| committer |   Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2024-06-14 09:09:36 +0200 |
| commit | d9dfc4eaa3c6bfbd072980a265edbaffbea4db4a (patch) | |
| tree | d45e79a2ccf370d37560fa02101f497dbc783849 /drivers/accel/ivpu/ivpu_hw.c | |
| parent | drm/bridge: sii902x: Add pixel clock check in atomic_check (diff) | |
| download | wireguard-linux-d9dfc4eaa3c6bfbd072980a265edbaffbea4db4a.tar.xz wireguard-linux-d9dfc4eaa3c6bfbd072980a265edbaffbea4db4a.zip | |
accel/ivpu: Add wp0_during_power_up WA
Send workpoint 0 request during power up on 37xx.
This is needed in rare case where WP0 was not sent
during power down due to device hang.
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611120433.1012423-2-jacek.lawrynowicz@linux.intel.com
Diffstat (limited to '')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_hw.c b/drivers/accel/ivpu/ivpu_hw.c index 9f5e3875baf1..daf1e4afb479 100644 --- a/drivers/accel/ivpu/ivpu_hw.c +++ b/drivers/accel/ivpu/ivpu_hw.c @@ -64,10 +64,14 @@ static void wa_init(struct ivpu_device *vdev) if (ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL) vdev->wa.disable_clock_relinquish = true; + if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX) + vdev->wa.wp0_during_power_up = true; + IVPU_PRINT_WA(punit_disabled); IVPU_PRINT_WA(clear_runtime_mem); IVPU_PRINT_WA(interrupt_clear_with_0); IVPU_PRINT_WA(disable_clock_relinquish); + IVPU_PRINT_WA(wp0_during_power_up); } static void timeouts_init(struct ivpu_device *vdev) @@ -125,6 +129,13 @@ int ivpu_hw_power_up(struct ivpu_device *vdev) { int ret; + if (IVPU_WA(wp0_during_power_up)) { + /* WP requests may fail when powering down, so issue WP 0 here */ + ret = wp_disable(vdev); + if (ret) + ivpu_warn(vdev, "Failed to disable workpoint: %d\n", ret); + } + ret = ivpu_hw_btrs_d0i3_disable(vdev); if (ret) ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret); |