1996970773
Most platforms with a Mali-400 or Mali-450 GPU also have support for changing the GPU clock frequency. Add devfreq support so the GPU clock rate is updated based on the actual GPU usage when the "operating-points-v2" property is present in the board.dts. The actual devfreq code is taken from panfrost_devfreq.c and modified so it matches what the lima hardware needs: - a call to dev_pm_opp_set_clkname() during initialization because there are two clocks on Mali-4x0 IPs. "core" is the one that actually clocks the GPU so we need to control it using devfreq. - locking when reading or writing the devfreq statistics because (unlike than panfrost) we have multiple PP and GP IRQs which may finish jobs concurrently. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200319203427.2259891-3-martin.blumenstingl@googlemail.com
22 lines
363 B
Makefile
22 lines
363 B
Makefile
# SPDX-License-Identifier: GPL-2.0 OR MIT
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# Copyright 2017-2019 Qiang Yu <yuq825@gmail.com>
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lima-y := \
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lima_drv.o \
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lima_device.o \
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lima_pmu.o \
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lima_l2_cache.o \
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lima_mmu.o \
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lima_gp.o \
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lima_pp.o \
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lima_gem.o \
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lima_vm.o \
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lima_sched.o \
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lima_ctx.o \
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lima_dlbu.o \
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lima_bcast.o \
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lima_trace.o \
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lima_devfreq.o
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obj-$(CONFIG_DRM_LIMA) += lima.o
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