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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e112018776
Family 8000 products has 2 embedded processors, the first known as LMAC (lower MAC) and implements the functionality from previous products, the second one is known as UMAC (upper MAC) and is used mainly for driver offloads as well as new features. The UMAC is typically “less” real-time than the LMAC and is used for higher level controls. The UMAC's code/data size is estimated to be in the mega-byte arena, taking into account the code it needs to replace in the driver and the set of new features. In order to allow the UMAC to execute code that is bigger than its code memory, we allow the UMAC embedded processor to page out code pages on DRAM. When the device is slave on the bus(SDIO) the driver saves the UMAC's image pages in blocks of 32K in the DRAM and sends the layout of the pages to the FW. When the FW wants load / unload pages, it creates an interrupt, and the driver uploads / downloads the page to an address in the a specific address on the device's memory. The driver can support up to 1 MB of pages. Add paging mechanism for the UMAC on SDIO in order to allow the program to use a larger virtual space while using less physical memory on the device itself. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> |
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| .. | ||
| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| ieee802154 | ||
| ipvlan | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| dummy.c | ||
| eql.c | ||
| geneve.c | ||
| ifb.c | ||
| Kconfig | ||
| LICENSE.SRC | ||
| loopback.c | ||
| macvlan.c | ||
| macvtap.c | ||
| Makefile | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| nlmon.c | ||
| ntb_netdev.c | ||
| rionet.c | ||
| sb1000.c | ||
| Space.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| vxlan.c | ||
| xen-netfront.c | ||