Add pci support for risc-v

[sbutz]

Follow-up Tasks:

• PCI Handling is very similar across architectures. Reuse code across architectures where applicable.
• Upgrade crate fdt to version 0.2 once released

[github-actions]

Benchmark Results

Details

Benchmark	Current: 4434866	Previous: 2e23902	Performance Ratio
startup_benchmark Build Time	81.88 s	80.34 s	1.02 ❗
startup_benchmark File Size	0.80 MB	0.80 MB	1.00 ❗
Startup Time - 1 core	0.74 s (±0.02 s)	0.75 s (±0.02 s)	0.99
Startup Time - 2 cores	0.74 s (±0.02 s)	0.74 s (±0.02 s)	1.00
Startup Time - 4 cores	0.75 s (±0.02 s)	0.74 s (±0.02 s)	1.00
multithreaded_benchmark Build Time	82.13 s	82.11 s	1.00 ❗
multithreaded_benchmark File Size	0.86 MB	0.86 MB	1.00 ❗
Multithreaded Pi Efficiency - 2 Threads	89.31 % (±6.88 %)	85.89 % (±6.61 %)	1.04
Multithreaded Pi Efficiency - 4 Threads	43.57 % (±3.11 %)	43.43 % (±2.56 %)	1.00
Multithreaded Pi Efficiency - 8 Threads	25.40 % (±1.67 %)	25.76 % (±1.53 %)	0.99
micro_benchmarks Build Time	81.36 s	80.40 s	1.01 ❗
micro_benchmarks File Size	0.86 MB	0.86 MB	1.00 ❗
Scheduling time - 1 thread	64.01 ticks (±4.45 ticks)	62.65 ticks (±4.06 ticks)	1.02
Scheduling time - 2 threads	36.46 ticks (±5.08 ticks)	34.08 ticks (±4.10 ticks)	1.07
Micro - Time for syscall (getpid)	3.36 ticks (±0.63 ticks)	3.45 ticks (±0.58 ticks)	0.98
Memcpy speed - (built_in) block size 4096	80483.27 MByte/s (±55703.85 MByte/s)	82448.38 MByte/s (±56997.13 MByte/s)	0.98
Memcpy speed - (built_in) block size 1048576	30536.84 MByte/s (±24648.48 MByte/s)	30585.98 MByte/s (±24707.84 MByte/s)	1.00
Memcpy speed - (built_in) block size 16777216	26932.76 MByte/s (±22288.04 MByte/s)	26340.06 MByte/s (±21720.96 MByte/s)	1.02
Memset speed - (built_in) block size 4096	80855.37 MByte/s (±55958.95 MByte/s)	82292.76 MByte/s (±56891.50 MByte/s)	0.98
Memset speed - (built_in) block size 1048576	31283.01 MByte/s (±25083.02 MByte/s)	31323.85 MByte/s (±25145.86 MByte/s)	1.00
Memset speed - (built_in) block size 16777216	27710.57 MByte/s (±22778.92 MByte/s)	27104.68 MByte/s (±22209.94 MByte/s)	1.02
Memcpy speed - (rust) block size 4096	70904.95 MByte/s (±49371.16 MByte/s)	74097.96 MByte/s (±51811.44 MByte/s)	0.96
Memcpy speed - (rust) block size 1048576	30237.78 MByte/s (±24518.16 MByte/s)	30361.60 MByte/s (±24602.37 MByte/s)	1.00
Memcpy speed - (rust) block size 16777216	26465.85 MByte/s (±21912.30 MByte/s)	27625.34 MByte/s (±22806.88 MByte/s)	0.96
Memset speed - (rust) block size 4096	71287.69 MByte/s (±49668.92 MByte/s)	74373.47 MByte/s (±51976.48 MByte/s)	0.96
Memset speed - (rust) block size 1048576	30988.67 MByte/s (±24956.87 MByte/s)	31110.89 MByte/s (±25033.24 MByte/s)	1.00
Memset speed - (rust) block size 16777216	27250.57 MByte/s (±22416.88 MByte/s)	28386.93 MByte/s (±23265.03 MByte/s)	0.96
alloc_benchmarks Build Time	75.41 s	74.76 s	1.01 ❗
alloc_benchmarks File Size	0.87 MB	0.87 MB	1.00 ❗
Allocations - Allocation success	91.31 %	91.31 %	1
Allocations - Deallocation success	100.00 %	100.00 %	1
Allocations - Pre-fail Allocations	61.44 %	61.44 %	1
Allocations - Average Allocation time	5448.42 Ticks (±127.42 Ticks)	5860.58 Ticks (±98.43 Ticks)	0.93 ❗
Allocations - Average Allocation time (no fail)	6088.65 Ticks (±137.20 Ticks)	6554.81 Ticks (±92.86 Ticks)	0.93 ❗
Allocations - Average Deallocation time	969.22 Ticks (±231.00 Ticks)	1805.01 Ticks (±250.35 Ticks)	0.54 ❗
mutex_benchmark Build Time	75.64 s	79.82 s	0.95 ❗
mutex_benchmark File Size	0.86 MB	0.86 MB	1.00 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	12.06 ns (±0.37 ns)	12.10 ns (±0.41 ns)	1.00
Mutex Stress Test Average Time per Iteration - 2 Threads	41.14 ns (±2.48 ns)	40.26 ns (±1.68 ns)	1.02

This comment was automatically generated by workflow using github-action-benchmark.