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accel/ivpu: Add wp0_during_power_up WA

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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
This commit is contained in:
Wachowski, Karol 2024-06-11 14:04:18 +02:00 committed by Jacek Lawrynowicz
parent 9324410846
commit d9dfc4eaa3
2 changed files with 12 additions and 0 deletions
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1
drivers/accel/ivpu/ivpu_drv.h
View File

@ -102,6 +102,7 @@ struct ivpu_wa_table {
bool interrupt_clear_with_0;
bool disable_clock_relinquish;
bool disable_d0i3_msg;
bool wp0_during_power_up;
};
struct ivpu_hw_info;

11
drivers/accel/ivpu/ivpu_hw.c
View File

@ -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);