diff options
| author | Greg Kurz <groug@kaod.org> | 2019-12-13 13:00:35 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-12-17 10:59:11 +1100 |
| commit | 70c059e9266fc7d79e40c9d297722ccb717ec386 (patch) | |
| tree | 34d3199b03255b0dd1455282099d36284e1de8ab /include/hw | |
| parent | 3caf7bd0a2874717c5cf052a9840efe9c7774f2e (diff) | |
ppc/pnv: Introduce PnvChipClass::xscom_pcba() method
The XSCOM bus is implemented with a QOM interface, which is mostly
generic from a CPU type standpoint, except for the computation of
addresses on the Pervasive Connect Bus (PCB) network. This is handled
by the pnv_xscom_pcba() function with a switch statement based on
the chip_type class level attribute of the CPU chip.
This can be achieved using QOM. Also the address argument is masked with
PNV_XSCOM_SIZE - 1, which is for POWER8 only. Addresses may have different
sizes with other CPU types. Have each CPU chip type handle the appropriate
computation with a QOM xscom_pcba() method.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157623843543.360005.13996472463887521794.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/ppc/pnv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index 7a134a15d3..4972e93c26 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -138,6 +138,7 @@ typedef struct PnvChipClass { void (*dt_populate)(PnvChip *chip, void *fdt); void (*pic_print_info)(PnvChip *chip, Monitor *mon); uint64_t (*xscom_core_base)(PnvChip *chip, uint32_t core_id); + uint32_t (*xscom_pcba)(PnvChip *chip, uint64_t addr); } PnvChipClass; #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP |