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pnv/xive2: Add definition for TCTXT Config register 

Add basic read/write support for the TCTXT Config register on P10. qemu
doesn't do anything with it yet, but it avoids logging a guest error
when skiboot configures the fused-core state:

qemu-system-ppc64 -machine powernv10 ... -d guest_errors
  ...
[    0.131670000,5] XIVE: [ IC 00  ] Initializing XIVE block ID 0...
XIVE[0] - TCTXT: invalid read @140
XIVE[0] - TCTXT: invalid write @140

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-2-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
master
Frederic Barrat 2023-06-01 14:13:27 +02:00 committed by Daniel Henrique Barboza
parent 3673ad3896
commit cce84fc919
2 changed files with 11 additions and 1 deletions
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8
hw/intc/pnv_xive2.c
View File

@ -1265,6 +1265,9 @@ static uint64_t pnv_xive2_ic_tctxt_read(void *opaque, hwaddr offset,
case TCTXT_EN1_RESET:
val = xive->tctxt_regs[TCTXT_EN1 >> 3];
break;
case TCTXT_CFG:
val = xive->tctxt_regs[reg];
break;
default:
xive2_error(xive, "TCTXT: invalid read @%"HWADDR_PRIx, offset);
}
@ -1276,6 +1279,7 @@ static void pnv_xive2_ic_tctxt_write(void *opaque, hwaddr offset,
uint64_t val, unsigned size)
{
PnvXive2 *xive = PNV_XIVE2(opaque);
uint32_t reg = offset >> 3;
switch (offset) {
/*
@ -1297,7 +1301,9 @@ static void pnv_xive2_ic_tctxt_write(void *opaque, hwaddr offset,
case TCTXT_EN1_RESET:
xive->tctxt_regs[TCTXT_EN1 >> 3] &= ~val;
break;
case TCTXT_CFG:
xive->tctxt_regs[reg] = val;
break;
default:
xive2_error(xive, "TCTXT: invalid write @%"HWADDR_PRIx, offset);
return;

4
hw/intc/pnv_xive2_regs.h
View File

@ -405,6 +405,10 @@
#define X_TCTXT_EN1_RESET 0x307
#define TCTXT_EN1_RESET 0x038
/* TCTXT Config register */
#define X_TCTXT_CFG 0x328
#define TCTXT_CFG 0x140
/*
* VSD Tables
*/