key:
archs: architectures this driver is used with (based on _defconfig files)
type: F(lush) and/or I(nvalidate) used in the driver
results: both= start address *and* length
correct: actual addresses passed
rounded: addresses rounded in arguments to cache maint functions

driver name    | archs         | type  | results / comments
---------------+---------------+-------+-------------------------------------
ag7xxx.c	MIPS		FI	both correct (flush == clean only?)
altera_tse.c	NIOS2		FI	both correct
bcm-sf2-eth-gmac.c	ARM	F	both correct
designware.c	ARM, ARC	FI	start OK, length rounded
dwc_eth_qos.c	ARM		FI	both rounded
e1000.c		X86, PPC, ARM	FI	some both rounded
ethoc.c		XTENSA		F	some length using PKTSIZE_ALIGN
fec_mxc.c	ARM		FI	size rounded, some base rounded
fsl-mc/mc.c	ARM64		F	both correct
ftgmac100.c	NDS32?		no cache maint? trivial DMA API wrapper?
ftmac100.c	NDS32, RISCV	FI	both correct
ldpaa_eth/ldpaa_eth.c	ARM64	F	both correct
macb.c		ARM		FI	length rounded
mt7628-eth.c	MIPS		FI	both correct
mtk_eth.c	ARM		FI	length rounded
mvneta.c	ARM		F	length rounded in send()
mvpp2.c		ARM		F	length rounded in send()
pch_gbe.c	MIPS		FI	both correct
pcnet.c		MIPS		FI	both correct
pic32_eth.c	MIPS		FI	both correct
ravb.c		ARM		FI	flush correct, inv both rounded
rtl8169.c	ARM, x86	FI	inv both rounded, flush correct
sh_eth.c	ARM, SH		FI	inv both rounded, flush length rounded
sni_ave.c	ARM		FI	both rounded in wrappers
sun8i_emac.c	ARM		FI	some length, some base rounded
cpsw.c		ARM		FI	flush length rounded, inv length rounded
ti/davinci_emac.c	ARM	FI	(length rounded: PKTSIZE_ALIGN)
zynq_gem.c	ARM		FI	both rounded