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2017-08-22vas: Move core/vas.c -> hw/vas.cMichael Neuling1-448/+0
It's hardware after all... Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-22vas: Set FIRs according to workbookMichael Neuling1-11/+5
This sets the FIR, FIR mask and FIR action registers according to VAS workbook v1.20. It also renames them to make it clear what they are. Without this any VAS error will checkstop the machine, rather than potentially be recoverable. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-21VAS: Remove misleading printMichael Neuling1-2/+1
If there are no VAS nodes in the device tree we will still print this misleading message. Chips are already printed as they are inited. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-21vas: Set mmio enable bits in DD2Sukadev Bhattiprolu1-0/+3
POWER9 DD2 added some new "enable" bits that must be set for VAS to work. These bits were unused in DD1. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-By: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Define vas_get_wcbs_bar interfaceSukadev Bhattiprolu1-0/+15
Implement the function vas_get_wcbs_bar() that returns the Window Context Backing store address register. NX driver uses this function to initialize its UMAC Send WC register. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Define vas_get_hvwc_mmio_bar interfaceSukadev Bhattiprolu1-0/+13
The nest accelerator (NX) will need this interface to initialize its UMAC MMIO BAR. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Create MMIO device tree nodeSukadev Bhattiprolu1-0/+30
Create a device tree node for VAS and add properties that Linux will need to configure/use VAS. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Define helpers to compute window paste addressSukadev Bhattiprolu1-0/+99
Define helpers get_paste_bar() and get_paste_bitfield(), to facilitate computing the the physical power bus "paste" address for any window on a given chip. A follow-on patch will export these values to Linux via the device tree. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Initialize VAS registersSukadev Bhattiprolu1-0/+295
Initialize the VAS registers on each of instance that we discover. Initializing VAS involves writing either pre-defined values or allocated addresses to appropriate SCOM addresses. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> [stewart@linux.vnet.ibm.com: update phys_map_get API usage] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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