reduced memory for udmabuf0/svcbuffer@1 to 4MB from 1GB #18
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dmpatra
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Description: Reduce memory reservation for CMA and provide more memory to Linux kernel.
Related PRs:
https://github.com/tsisw/common-runtime/pull/55
https://github.com/tsisw/runtime/pull/101
====
Impact Analysis:
Evolutionary.
Reduce memory reservation for CMA and provide more memory to Linux kernel.
FPGA, runtime, common-runtime.
Regression Test result: <Regtest result link .>
values for ~3GB reserve for CMA:
root@agilex7_dk_si_agf014eb:/tsi/dmohapatra/rtlib# cat /proc/meminfo
MemTotal: 1985760 kB
MemFree: 32880 kB
MemAvailable: 743580 kB
Buffers: 57844 kB
Cached: 697184 kB
SwapCached: 0 kB
Active: 66336 kB
Inactive: 692416 kB
Active(anon): 108 kB
Inactive(anon): 3872 kB
Active(file): 66228 kB
Inactive(file): 688544 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 2097148 kB
SwapFree: 2097148 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 3780 kB
Mapped: 3512 kB
Shmem: 256 kB
KReclaimable: 36016 kB
Slab: 49252 kB
SReclaimable: 36016 kB
SUnreclaim: 13236 kB
KernelStack: 1472 kB
PageTables: 2732 kB
SecPageTables: 0 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 3076716 kB
Committed_AS: 16536 kB
VmallocTotal: 135288315904 kB
VmallocUsed: 5544 kB
VmallocChunk: 0 kB
Percpu: 448 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
FileHugePages: 0 kB
FilePmdMapped: 0 kB
CmaTotal: 1050624 kB
CmaFree: 64 kB
HugePages_Total: 13
HugePages_Free: 12
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 26624 kB
======
values from ~2GB reserve for CMA (primarily from high -DDR)
root@agilex7_dk_si_agf014eb:~# cat /proc/meminfo
MemTotal: 1984224 kB
MemFree: 38344 kB
MemAvailable: 1768400 kB
Buffers: 55788 kB
Cached: 1703288 kB
SwapCached: 0 kB
Active: 64384 kB
Inactive: 1698164 kB
Active(anon): 104 kB
Inactive(anon): 3664 kB
Active(file): 64280 kB
Inactive(file): 1694500 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 2097148 kB
SwapFree: 2097148 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 3528 kB
Mapped: 3556 kB
Shmem: 252 kB
KReclaimable: 61644 kB
Slab: 77988 kB
SReclaimable: 61644 kB
SUnreclaim: 16344 kB
KernelStack: 1440 kB
PageTables: 2616 kB
SecPageTables: 0 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 3068780 kB
Committed_AS: 16020 kB
VmallocTotal: 135288315904 kB
VmallocUsed: 5564 kB
VmallocChunk: 0 kB
Percpu: 448 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
FileHugePages: 0 kB
FilePmdMapped: 0 kB
CmaTotal: 6144 kB
CmaFree: 0 kB
HugePages_Total: 20
HugePages_Free: 19
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 40960 kB