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Kernel: Use Processor::wait_check in loops waiting for HW to respond

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This gives the processor the hint that it is in a hot loop and allows us
to do other work in between
This commit is contained in:
Hendiadyoin1 2023-09-12 14:58:55 +02:00 • committed by Andrew Kaster
parent cbaa3465a8
commit a2810d3cf8
9 changed files with 31 additions and 36 deletions
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4
Kernel/Net/Intel/E1000NetworkAdapter.cpp
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@ -294,11 +294,11 @@ UNMAP_AFTER_INIT u32 E1000NetworkAdapter::read_eeprom(u8 address)
if (m_has_eeprom) {
out32(REG_EEPROM, ((u32)address << 8) | 1);
while (!((tmp = in32(REG_EEPROM)) & (1 << 4)))
;
Processor::wait_check();
} else {
out32(REG_EEPROM, ((u32)address << 2) | 1);
while (!((tmp = in32(REG_EEPROM)) & (1 << 1)))
;
Processor::wait_check();
}
data = (tmp >> 16) & 0xffff;
return data;