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ppc/pnv: assign pnv-phb-root-port chassis/slot earlier

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It is not advisable to execute an object_dynamic_cast() to poke into
bus->qbus.parent and follow it up with a C cast into the PnvPHB type we
think we got.

In fact this is not needed. There is nothing sophisticated being done
with the PHB object retrieved during root_port_realize() for both PHB3
and PHB4. We're retrieving a PHB reference just to access phb->chip_id
and phb->phb_id and use them to define the chassis/slot of the root
port.

phb->phb_id is already being passed to pnv_phb_attach_root_port() via
the 'index' parameter. Let's also add a 'chip_id' parameter to this
function and assign chassis and slot right there. This will spare us
from the hassle of accessing the PHB object inside realize().

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Message-Id: <20220621173436.165912-4-danielhb413@gmail.com>
This commit is contained in:
Daniel Henrique Barboza 2022-06-21 14:34:31 -03:00
parent 8625164a38
commit 792e8bb629
4 changed files with 19 additions and 35 deletions
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3
include/hw/ppc/pnv.h
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@ -189,7 +189,8 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
TYPE_PNV_CHIP_POWER10)
PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
void pnv_phb_attach_root_port(PCIHostState *pci, const char *name, int index);
void pnv_phb_attach_root_port(PCIHostState *pci, const char *name,
int index, int chip_id);
#define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv")
typedef struct PnvMachineClass PnvMachineClass;