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2382b5ae80
Expose 'pm_idle_enabled' sysfs attribute. This attribute controls how idle conditions are handled. If it is set to 1 (idle support enabled) when the device detects an idle condition, the driver will transition the device to the 'MIN' power configuration. In order to set the value of this attribute for a device, the device must be in the 'down' state. This only applies to qat_4xxx generation. Signed-off-by: Lucas Segarra Fernandez <lucas.segarra.fernandez@intel.com> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */
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/* Copyright(c) 2022 Intel Corporation */
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#ifndef ADF_GEN4_PM_H
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#define ADF_GEN4_PM_H
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#include "adf_accel_devices.h"
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/* Power management registers */
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#define ADF_GEN4_PM_HOST_MSG (0x50A01C)
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/* Power management */
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#define ADF_GEN4_PM_POLL_DELAY_US 20
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#define ADF_GEN4_PM_POLL_TIMEOUT_US USEC_PER_SEC
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#define ADF_GEN4_PM_MSG_POLL_DELAY_US (10 * USEC_PER_MSEC)
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#define ADF_GEN4_PM_STATUS (0x50A00C)
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#define ADF_GEN4_PM_INTERRUPT (0x50A028)
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/* Power management source in ERRSOU2 and ERRMSK2 */
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#define ADF_GEN4_PM_SOU BIT(18)
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#define ADF_GEN4_PM_IDLE_INT_EN BIT(18)
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#define ADF_GEN4_PM_THROTTLE_INT_EN BIT(19)
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#define ADF_GEN4_PM_DRV_ACTIVE BIT(20)
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#define ADF_GEN4_PM_INIT_STATE BIT(21)
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#define ADF_GEN4_PM_INT_EN_DEFAULT (ADF_GEN4_PM_IDLE_INT_EN | \
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ADF_GEN4_PM_THROTTLE_INT_EN)
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#define ADF_GEN4_PM_THR_STS BIT(0)
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#define ADF_GEN4_PM_IDLE_STS BIT(1)
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#define ADF_GEN4_PM_FW_INT_STS BIT(2)
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#define ADF_GEN4_PM_INT_STS_MASK (ADF_GEN4_PM_THR_STS | \
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ADF_GEN4_PM_IDLE_STS | \
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ADF_GEN4_PM_FW_INT_STS)
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#define ADF_GEN4_PM_MSG_PENDING BIT(0)
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#define ADF_GEN4_PM_MSG_PAYLOAD_BIT_MASK GENMASK(28, 1)
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#define ADF_GEN4_PM_DEFAULT_IDLE_FILTER (0x0)
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#define ADF_GEN4_PM_MAX_IDLE_FILTER (0x7)
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#define ADF_GEN4_PM_DEFAULT_IDLE_SUPPORT (0x1)
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int adf_gen4_enable_pm(struct adf_accel_dev *accel_dev);
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bool adf_gen4_handle_pm_interrupt(struct adf_accel_dev *accel_dev);
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#endif
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