qemu-patch-raspberry4/include/hw/ppc/pnv_occ.h
Cédric Le Goater 3a1b70b66b ppc/pnv: Fix OCC common area region mapping
The OCC common area is mapped at a unique address on the system and
each OCC is assigned a segment to expose its sensor data :

  -------------------------------------------------------------------------
  | Start (Offset from | End           | Size     |Description            |
  | BAR2 base address) |               |          |                       |
  -------------------------------------------------------------------------
  |    0x00580000      |  0x005A57FF   |150kB     |OCC 0 Sensor Data Block|
  |    0x005A5800      |  0x005CAFFF   |150kB     |OCC 1 Sensor Data Block|
  |        :           |       :       |  :       |            :          |
  |    0x00686800      |  0x006ABFFF   |150kB     |OCC 7 Sensor Data Block|
  |    0x006AC000      |  0x006FFFFF   |336kB     |Reserved               |
  -------------------------------------------------------------------------

Maximum size is 1.5MB.

We could define a "OCC common area" memory region at the machine level
and sub regions for each OCC. But it adds some extra complexity to the
models. Fix the current layout with a simpler model.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191211082912.2625-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00

64 lines
1.9 KiB
C

/*
* QEMU PowerPC PowerNV Emulation of a few OCC related registers
*
* Copyright (c) 2015-2017, IBM Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PPC_PNV_OCC_H
#define PPC_PNV_OCC_H
#include "hw/ppc/pnv_psi.h"
#define TYPE_PNV_OCC "pnv-occ"
#define PNV_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV_OCC)
#define TYPE_PNV8_OCC TYPE_PNV_OCC "-POWER8"
#define PNV8_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV8_OCC)
#define TYPE_PNV9_OCC TYPE_PNV_OCC "-POWER9"
#define PNV9_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV9_OCC)
#define PNV_OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000
#define PNV_OCC_SENSOR_DATA_BLOCK_SIZE 0x00025800
typedef struct PnvOCC {
DeviceState xd;
/* OCC Misc interrupt */
uint64_t occmisc;
PnvPsi *psi;
MemoryRegion xscom_regs;
MemoryRegion sram_regs;
} PnvOCC;
#define PNV_OCC_CLASS(klass) \
OBJECT_CLASS_CHECK(PnvOCCClass, (klass), TYPE_PNV_OCC)
#define PNV_OCC_GET_CLASS(obj) \
OBJECT_GET_CLASS(PnvOCCClass, (obj), TYPE_PNV_OCC)
typedef struct PnvOCCClass {
DeviceClass parent_class;
int xscom_size;
const MemoryRegionOps *xscom_ops;
int psi_irq;
} PnvOCCClass;
#define PNV_OCC_SENSOR_DATA_BLOCK_BASE(i) \
(PNV_OCC_SENSOR_DATA_BLOCK_OFFSET + (i) * PNV_OCC_SENSOR_DATA_BLOCK_SIZE)
#endif /* PPC_PNV_OCC_H */