ppc/pnv: Fix PSI IRQ definition

On HW, the PSI and FSP interrupt levels are muxed under the same
interrupt number. For coding reasons, an extra IRQ number was
introduced to index register values in an array. It increased the
count of IRQs which do not fit in the PSI IRQ range anymore.

The PSI and FSP interrupts should be modeled with an extra level of
GPIO lines but since QEMU does not support them, simply drop the extra
number to stay within the IRQ range.

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220323072846.1780212-2-clg@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

hw/ppc/pnv_psi.c

@@ -184,8 +184,7 @@ static void pnv_psi_set_irsn(PnvPsi *psi, uint64_t val)
 /*
  * FSP and PSI interrupts are muxed under the same number.
  */
-static const uint32_t xivr_regs[] = {
-    [PSIHB_IRQ_PSI]       = PSIHB_XSCOM_XIVR_FSP,
+static const uint32_t xivr_regs[PSI_NUM_INTERRUPTS] = {
     [PSIHB_IRQ_FSP]       = PSIHB_XSCOM_XIVR_FSP,
     [PSIHB_IRQ_OCC]       = PSIHB_XSCOM_XIVR_OCC,
     [PSIHB_IRQ_FSI]       = PSIHB_XSCOM_XIVR_FSI,
@@ -194,8 +193,7 @@ static const uint32_t xivr_regs[] = {
     [PSIHB_IRQ_EXTERNAL]  = PSIHB_XSCOM_XIVR_EXT,
 };
 
-static const uint32_t stat_regs[] = {
-    [PSIHB_IRQ_PSI]       = PSIHB_XSCOM_CR,
+static const uint32_t stat_regs[PSI_NUM_INTERRUPTS] = {
     [PSIHB_IRQ_FSP]       = PSIHB_XSCOM_CR,
     [PSIHB_IRQ_OCC]       = PSIHB_XSCOM_IRQ_STAT,
     [PSIHB_IRQ_FSI]       = PSIHB_XSCOM_IRQ_STAT,
@@ -204,8 +202,7 @@ static const uint32_t stat_regs[] = {
     [PSIHB_IRQ_EXTERNAL]  = PSIHB_XSCOM_IRQ_STAT,
 };
 
-static const uint64_t stat_bits[] = {
-    [PSIHB_IRQ_PSI]       = PSIHB_CR_PSI_IRQ,
+static const uint64_t stat_bits[PSI_NUM_INTERRUPTS] = {
     [PSIHB_IRQ_FSP]       = PSIHB_CR_FSP_IRQ,
     [PSIHB_IRQ_OCC]       = PSIHB_IRQ_STAT_OCC,
     [PSIHB_IRQ_FSI]       = PSIHB_IRQ_STAT_FSI,

include/hw/ppc/pnv_psi.h

@@ -1,7 +1,7 @@
 /*
  * QEMU PowerPC PowerNV Processor Service Interface (PSI) model
  *
- * Copyright (c) 2015-2017, IBM Corporation.
+ * Copyright (c) 2015-2022, IBM Corporation.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -85,7 +85,6 @@ struct PnvPsiClass {
 
 /* The PSI and FSP interrupts are muxed on the same IRQ number */
 typedef enum PnvPsiIrq {
-    PSIHB_IRQ_PSI, /* internal use only */
     PSIHB_IRQ_FSP, /* internal use only */
     PSIHB_IRQ_OCC,
     PSIHB_IRQ_FSI,