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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 |
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| .. | ||
| Kconfig | ||
| lima_bcast.c | ||
| lima_bcast.h | ||
| lima_ctx.c | ||
| lima_ctx.h | ||
| lima_devfreq.c | ||
| lima_devfreq.h | ||
| lima_device.c | ||
| lima_device.h | ||
| lima_dlbu.c | ||
| lima_dlbu.h | ||
| lima_drv.c | ||
| lima_drv.h | ||
| lima_dump.h | ||
| lima_gem.c | ||
| lima_gem.h | ||
| lima_gp.c | ||
| lima_gp.h | ||
| lima_l2_cache.c | ||
| lima_l2_cache.h | ||
| lima_mmu.c | ||
| lima_mmu.h | ||
| lima_pmu.c | ||
| lima_pmu.h | ||
| lima_pp.c | ||
| lima_pp.h | ||
| lima_regs.h | ||
| lima_sched.c | ||
| lima_sched.h | ||
| lima_trace.c | ||
| lima_trace.h | ||
| lima_vm.c | ||
| lima_vm.h | ||
| Makefile | ||