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m1n1/proxyclient/experiments/chickens.py

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#!/usr/bin/env python3
# SPDX-License-Identifier: MIT
import sys, pathlib
sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
from m1n1.setup import *
sys_regs = dict([
("HID0", (3, 0, 15, 0, 0)),
("HID1", (3, 0, 15, 1, 0)),
("EHID20", (3, 0, 15, 1, 2)),
("HID2", (3, 0, 15, 2, 0)),
("HID3", (3, 0, 15, 3, 0)),
("HID4", (3, 0, 15, 4, 0)),
("EHID4", (3, 0, 15, 4, 1)),
("HID5", (3, 0, 15, 5, 0)),
("HID6", (3, 0, 15, 6, 0)),
("HID7", (3, 0, 15, 7, 0)),
("HID8", (3, 0, 15, 8, 0)),
("HID9", (3, 0, 15, 9, 0)),
("EHID9", (3, 0, 15, 9, 1)),
("HID10", (3, 0, 15, 10, 0)),
("EHID10", (3, 0, 15, 10, 1)),
("HID11", (3, 0, 15, 11, 0)),
])
CYC_OVRD = (3, 5, 15, 5, 0)
CYC_CFG = (3, 5, 15, 4, 0)
L2C_ERR_STS = (3, 3, 15, 8, 0)
s3_6_c15_c1_0 = (3, 6, 15, 1, 0)
s3_6_c15_c1_6 = (3, 6, 15, 1, 6)
s3_4_c15_c1_4 = (3, 4, 15, 1, 4)
s3_4_c15_c5_0 = (3, 4, 15, 5, 0)
h13e_chickenbits = [
("EHID4", 0x100000000800, 0),
("HID5", 0x2000000000000000, 0),
("EHID10", 0x2000100000000, 0),
("EHID20", 0x100, 0),
("EHID9", 0, 0x20),
("EHID20", 0x8000, 0),
("EHID20", 0x10000, 0),
("EHID20", 0x600000, 0),
]
tlbi_vmalle1 = 0xd508871f
def h13e_init():
mpidr = u.mrs(MPIDR_EL1)
print("mpidr = 0x%x" % mpidr)
#print("OSLAR")
#u.msr(OSLAR_EL1, 0)
#print("s3_6_c15_c1_0")
#u.msr(s3_6_c15_c1_0, 1)
#print("tlbi_vmalle1")
#u.inst(tlbi_vmalle1)
## This looks like APRR stuff?
#v = u.mrs(s3_6_c15_c1_6)
#print("s3_6_c15_c1_6 == 0x%x" % v)
#v = 0x2020a505f020f0f0
#print("s3_6_c15_c1_6 <= 0x%x" % v)
#u.msr(s3_6_c15_c1_6, v)
#u.msr(s3_6_c15_c1_0, 0)
for reg, setb, clearb in h13e_chickenbits:
v = u.mrs(sys_regs[reg])
print("%r == 0x%x" % (reg, v))
v &= ~clearb
v |= setb
print("%r <= 0x%x" % (reg, v))
u.msr(sys_regs[reg], v)
v = u.mrs(s3_4_c15_c5_0)
print("s3_4_c15_c5_0 == 0x%x" % v)
print("s3_4_c15_c5_0 <= 0x%x" % (mpidr & 0xff))
u.msr(s3_4_c15_c5_0, mpidr & 0xff)
u.msr(s3_4_c15_c1_4, 0x100)
v = u.mrs(CYC_OVRD)
print("CYC_OVRD == 0x%x" % v)
v &= ~0xf00000
print("CYC_OVRD <= 0x%x" % v)
u.msr(CYC_OVRD, v)
v = u.mrs(ACTLR_EL1)
print("ACTLR_EL1 == 0x%x" % v)
v |= 0x200
print("ACTLR_EL1 <= 0x%x" % v)
u.msr(ACTLR_EL1, v)
v = u.mrs(CYC_CFG)
print("CYC_CFG == 0x%x" % v)
v |= 0xc
print("CYC_CFG <= 0x%x" % v)
u.msr(CYC_CFG, v)
print("L2C_ERR_STS = %x" % u.mrs(L2C_ERR_STS))
u.msr(L2C_ERR_STS, 0)
h13e_init()