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fc3734698a
This patch adds decriptions for mt8192 IOMMU and SMI. mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation table format. The M4U-SMI HW diagram is as below: EMI | M4U | ------------ SMI Common ------------ | +-------+------+------+----------------------+-------+ | | | | ...... | | | | | | | | larb0 larb1 larb2 larb4 ...... larb19 larb20 disp0 disp1 mdp vdec IPE IPE All the connections are HW fixed, SW can NOT adjust it. mt8192 M4U support 0~16GB iova range. we preassign different engines into different iova ranges: domain-id module iova-range larbs 0 disp 0 ~ 4G larb0/1 1 vcodec 4G ~ 8G larb4/5/7 2 cam/mdp 8G ~ 12G larb2/9/11/13/14/16/17/18/19/20 3 CCU0 0x4000_0000 ~ 0x43ff_ffff larb13: port 9/10 4 CCU1 0x4400_0000 ~ 0x47ff_ffff larb14: port 4/5 The iova range for CCU0/1(camera control unit) is HW requirement. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-6-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org> |
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ABI | ||
accounting | ||
admin-guide | ||
arm | ||
arm64 | ||
block | ||
bpf | ||
cdrom | ||
core-api | ||
cpu-freq | ||
crypto | ||
dev-tools | ||
devicetree | ||
doc-guide | ||
driver-api | ||
fault-injection | ||
fb | ||
features | ||
filesystems | ||
firmware_class | ||
firmware-guide | ||
fpga | ||
gpu | ||
hid | ||
hwmon | ||
i2c | ||
ia64 | ||
ide | ||
iio | ||
infiniband | ||
input | ||
isdn | ||
kbuild | ||
kernel-hacking | ||
leds | ||
litmus-tests | ||
livepatch | ||
locking | ||
m68k | ||
maintainer | ||
mhi | ||
mips | ||
misc-devices | ||
netlabel | ||
networking | ||
nios2 | ||
nvdimm | ||
openrisc | ||
parisc | ||
PCI | ||
pcmcia | ||
power | ||
powerpc | ||
process | ||
RCU | ||
riscv | ||
s390 | ||
scheduler | ||
scsi | ||
security | ||
sh | ||
sound | ||
sparc | ||
sphinx | ||
sphinx-static | ||
spi | ||
staging | ||
target | ||
timers | ||
trace | ||
translations | ||
usb | ||
userspace-api | ||
virt | ||
vm | ||
w1 | ||
watchdog | ||
x86 | ||
xtensa | ||
.gitignore | ||
asm-annotations.rst | ||
atomic_bitops.txt | ||
atomic_t.txt | ||
Changes | ||
CodingStyle | ||
conf.py | ||
COPYING-logo | ||
docutils.conf | ||
dontdiff | ||
index.rst | ||
Kconfig | ||
logo.gif | ||
Makefile | ||
memory-barriers.txt | ||
SubmittingPatches | ||
watch_queue.rst |