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Currently clock request is enabled, which means NPU will
only request clock when working. When NPU is going into idle it will no
longer request clock and thus PMU won't be clocked either, and thus
affect the cycle counter.
Added: enum for request clients (PMU or INFERENCE).
Added: clock_request added to driver struct (bit 0: PMU, bit 1:
INFERENCE) which keeps track of which client requests clock.
Added: power_request added to driver struct (bit 0: PMU, bit 1:
INFERENCE) which keeps track of which client requests power.
Added set_clock_and_power_request(...) updates clock_request and
power_request depending on which client calls it. Sets clock and power
if both PMU and INFERENCE requests it.
Added: Call set_clock_and_power_request(...) from PMU.
Changed: replace ethosu_set_clock_and_power(...) with
set_clock_and_power_request(...) in ethosu_init and ethosu_invoke
Change-Id: Ie7d8aee639d4abbf879b05e9a82035d7c0d40d40
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The pmu configuration API expects the internal configuration values,
and not the exported enum. Update the API to instead use the enums to be
able to configure them correctly.
Change-Id: I038b1841f2459baec4a62a6a4389ea4b5f4822f2
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---ethosu_driver---
Modified: Declarations for the driver interfaces to support multiNPU (takes *drv)
Added: ethosu_register_driver(...) to allow for a specific NPU driver to be instantiated
Added: ethosu_deregister_Driver(...) to allow for a specific NPU driver to be de-registered
Added: ethosu_reserve_driver(...) to reserve & return the first NPU driver instance available
Added: ethosu_release_driver(...) to release a specific NPU driver instance and make it available again
Added: *registered_drivers - A static linked list of drivers ready be used
---ethosu_pmu---
Modified: Declarations for pmu interfaces to support multiNPU (takes *drv)
---ethosu_device---
Modified: Resolved a circular include dependency (Remove include and add ETHOSU_PMU_NCOUNTERS macro)
Change-Id: Iede41cd41bb0d5d483bd9d929d1b6c9ca5d3c48e
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The low and high PMU cycle counter registers were not combined
correctly.
Change-Id: I6b311b33527557f459fd87ebd5d4d3228625106a
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Storing PMU counters in shadow variables, in case the PMU was powered
off or soft reset.
Change-Id: I64ccf3fb6195f9be2d8315891ec612bb75404885
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GCC > 7 warns that the selected type of the enum makes the comparisson
unneccesary. Since the selected enum fits in an integer, the input
parameter is casted to an integer to make the comparison valid and
asserts that the enum is within valid enum values (which we know are
monotonically growing).
Change-Id: Id81799e2ac43a83b998541ce7531d2039202cd62
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Change-Id: I591284c1b06b660fc303bb5b4fa282d403ee42c0
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Change-Id: Ia2a0ac76fca0fd12efee305a2ea2ebd5b2055b2d
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Change-Id: I54a1927fef998bc97f5507f2de9faf7d4a7960f5
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Change-Id: I1145834000ff81d6e497a8fa77bf997478a80372
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This change is done as a prerequisite to be able to set
base address for NPU through ethosu_init(). So instead of using
a mamory mapped struct we use the same functions to read/write
PMU registers as the rest of the ethos-u driver.
Change-Id: Ie1f6e6af4627cbe9375e2b2d079ba8017b6294d3
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Moving PMU files from ethosu_pmu to include and src.
Adding extern "C" to PMU header.
Removing CMake generated file.
Updating default path to CMSIS.
Removing timing adapter.
Change-Id: I4834c5361c14efe629c5cb36a17013d02cc765c8
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