fb91362a23
mali_csffw.bin from Valhall DDK g29(r54) is included. In addition, in kbase_device_runtime_suspend(), some lines of codes added by r54 was removed. If these lines of code are executed together with "the code for powering off the GPU with a delay on the RK platform", it will lead to a deadlock. Change-Id: I96ef4071d31f0742148cd80eba93aa0a3520daf6 Signed-off-by: Zhen Chen <chenzhen@rock-chips.com>
240 lines
9.7 KiB
Plaintext
240 lines
9.7 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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/*
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*
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* (C) COPYRIGHT 2017-2024 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*
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*/
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What: /sys/class/misc/mali%u/device/core_mask
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Description:
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This attribute is used to restrict the number of shader cores
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available in this instance, is useful for debugging purposes.
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Reading this attribute provides us mask of all cores available.
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Writing to it will set the current core mask. Doesn't
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allow disabling all the cores present in this instance.
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What: /sys/class/misc/mali%u/device/debug_command
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Description:
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This attribute is used to issue debug commands that supported
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by the driver. On reading it provides the list of debug commands
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that are supported, and writing back one of those commands will
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enable that debug option.
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What: /sys/class/misc/mali%u/device/dvfs_period
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Description:
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This is used to set the DVFS sampling period to be used by the
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driver, On reading it provides the current DVFS sampling period,
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on writing a value we set the DVFS sampling period.
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What: /sys/class/misc/mali%u/device/fw_timeout
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. This attribute is
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used to set the duration value in milliseconds for the
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waiting timeout used for a GPU status change request being
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acknowledged by the FW.
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What: /sys/class/misc/mali%u/device/gpuinfo
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Description:
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This attribute provides description of the present Mali GPU.
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Its a read only attribute provides details like GPU family, the
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number of cores, the hardware version and the raw product id.
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What: /sys/class/misc/mali%u/device/idle_hysteresis_time
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. This attribute is
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used to configure the timeout value in microseconds for the
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GPU idle handling. If GPU has been idle for this timeout
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period, then it is put to sleep for GPUs where sleep feature
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is supported or is powered down after suspending command
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stream groups.
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What: /sys/class/misc/mali%u/device/idle_hysteresis_time_ns
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. This attribute is
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used to configure the timeout value in nanoseconds for the
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GPU idle handling. If GPU has been idle for this timeout
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period, then it is put to sleep for GPUs where sleep feature
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is supported or is powered down after suspending command
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stream groups.
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What: /sys/class/misc/mali%u/device/pm_poweroff
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Description:
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This attribute contains the current values, represented as the
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following space-separated integers:
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• PM_GPU_POWEROFF_TICK_NS.
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• PM_POWEROFF_TICK_SHADER.
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• PM_POWEROFF_TICK_GPU.
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Example:
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echo 100000 4 4 > /sys/class/misc/mali0/device/pm_poweroff
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Sets the following new values: 100,000ns tick, four ticks
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for shader power down, and four ticks for GPU power down.
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What: /sys/class/misc/mali%u/device/power_policy
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Description:
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This attribute is used to find the current power policy been
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used, reading will list the power policies available and
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enclosed in square bracket is the current one been selected.
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Example:
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cat /sys/class/misc/mali0/device/power_policy
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[demand] coarse_demand always_on
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To switch to a different policy at runtime write the valid entry
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name back to the attribute.
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Example:
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echo "coarse_demand" > /sys/class/misc/mali0/device/power_policy
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What: /sys/class/misc/mali%u/device/progress_timeout
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. This attribute
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is used to set the progress timeout value and read the current
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progress timeout value.
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Progress timeout value is the maximum number of GPU cycles
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without forward progress to allow to elapse before terminating a
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GPU command queue group.
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What: /sys/class/misc/mali%u/device/mcu_shader_pwroff_timeout
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. The duration value unit
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is in micro-seconds and is used for configuring MCU shader Core power-off
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timer. The configured MCU shader Core power-off timer will only have
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effect when the host driver has delegated the shader cores
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power management to MCU. The supplied value will be
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recorded internally without any change. But the actual field
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value will be subject to core power-off timer source frequency
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scaling and maximum value limiting. The default source will be
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SYSTEM_TIMESTAMP counter. But in case the platform is not able
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to supply it, the GPU CYCLE_COUNTER source will be used as an
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alternative.
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If we set the value to zero then MCU-controlled shader/tiler
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power management will be disabled.
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What: /sys/class/misc/mali%u/device/mcu_shader_pwroff_timeout_ns
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. The duration value unit
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is in nanoseconds and is used for configuring MCU shader Core power-off
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timer. The configured MCU shader Core power-off timer will only have
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effect when the host driver has delegated the shader cores
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power management to MCU. The supplied value will be
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recorded internally without any change. But the actual field
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value will be subject to core power-off timer source frequency
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scaling and maximum value limiting. The default source will be
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SYSTEM_TIMESTAMP counter. But in case the platform is not able
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to supply it, the GPU CYCLE_COUNTER source will be used as an
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alternative.
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If we set the value to zero then MCU-controlled shader/tiler
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power management will be disabled.
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What: /sys/class/misc/mali%u/device/csg_scheduling_period
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. The duration value unit
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is in milliseconds and is used for configuring csf scheduling
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tick duration.
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What: /sys/class/misc/mali%u/device/reset_timeout
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Description:
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This attribute is used to set the number of milliseconds to
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wait for the soft stop to complete for the GPU jobs before
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proceeding with the GPU reset.
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What: /sys/class/misc/mali%u/device/soft_job_timeout
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Description:
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This attribute is available only with platform device that
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supports a Job Manager based GPU. It used to set the timeout
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value for waiting for any soft event to complete.
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What: /sys/class/misc/mali%u/device/scheduling/serialize_jobs
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Description:
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This attribute is available only with platform device that
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supports a Job Manager based GPU.
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Various options available under this are:
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• none - for disabling serialization.
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• intra-slot - Serialize atoms within a slot, only one
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atom per job slot.
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• inter-slot - Serialize atoms between slots, only one
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job slot running at any time.
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• full - it a combination of both inter and intra slot,
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so only one atom and one job slot running
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at any time.
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• full-reset - full serialization and Reset the GPU after
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each atom completion
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These options are useful for debugging and investigating
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failures and gpu hangs to narrow down atoms that could cause
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troubles.
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What: /sys/class/misc/mali%u/device/firmware_config/Compute iterator count/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. Its a read-only attribute
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which indicates the maximum number of Compute iterators
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supported by the GPU.
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What: /sys/class/misc/mali%u/device/firmware_config/CSHWIF count/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. Its a read-only
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attribute which indicates the maximum number of CSHWIFs
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supported by the GPU.
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What: /sys/class/misc/mali%u/device/firmware_config/Fragment iterator count/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. Its a read-only
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attribute which indicates the maximum number of
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Fragment iterators supported by the GPU.
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What: /sys/class/misc/mali%u/device/firmware_config/Scoreboard set count/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. Its a read-only
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attribute which indicates the maximum number of
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Scoreboard set supported by the GPU.
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What: /sys/class/misc/mali%u/device/firmware_config/Tiler iterator count/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU. Its a read-only
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attribute which indicates the maximum number of Tiler iterators
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supported by the GPU.
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What: /sys/class/misc/mali%u/device/firmware_config/Log verbosity/*
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Description:
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This attribute is available only with mali platform
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device-driver that supports a CSF GPU.
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Used to enable firmware logs, logging levels valid values
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are indicated using 'min' and 'max' attributes, which are read-only.
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Log level can be set using the 'cur' read, write attribute,
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we can use a valid log level value from min and max range values
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and set a valid desired log level for firmware logs.
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