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From: | Cédric Le Goater |
Subject: | Re: [PATCH 13/14] ppc/pnv: Move realize of PEC stacks under the PEC model |
Date: | Tue, 7 Dec 2021 11:30:32 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 |
On 12/7/21 11:10, Frederic Barrat wrote:
On 02/12/2021 15:42, Cédric Le Goater wrote:This change will help us providing support for user created PHB4 devices. Signed-off-by: Cédric Le Goater <clg@kaod.org> --- hw/pci-host/pnv_phb4_pec.c | 36 ++++++++++++++++++++++++++++++++---- hw/ppc/pnv.c | 31 +------------------------------ 2 files changed, 33 insertions(+), 34 deletions(-) diff --git a/hw/pci-host/pnv_phb4_pec.c b/hw/pci-host/pnv_phb4_pec.c index dfed2af0f7df..9b081d543057 100644 --- a/hw/pci-host/pnv_phb4_pec.c +++ b/hw/pci-host/pnv_phb4_pec.c @@ -556,6 +556,10 @@ static void pnv_pec_stk_realize(DeviceState *dev, Error **errp) { PnvPhb4PecStack *stack = PNV_PHB4_PEC_STACK(dev); PnvPhb4PecState *pec = stack->pec; + PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec); + PnvChip *chip = pec->chip; + uint32_t pec_nest_base; + uint32_t pec_pci_base; char name[64]; assert(pec); @@ -579,10 +583,34 @@ static void pnv_pec_stk_realize(DeviceState *dev, Error **errp) pnv_xscom_region_init(&stack->phb_regs_mr, OBJECT(&stack->phb), &pnv_phb4_xscom_ops, &stack->phb, name, 0x40); - /* - * Let the machine/chip realize the PHB object to customize more - * easily some fields - */ + { + Object *obj = OBJECT(&stack->phb); + + object_property_set_int(obj, "chip-id", pec->chip_id, &error_fatal); + object_property_set_int(obj, "version", pecc->version, &error_fatal); + object_property_set_int(obj, "device-id", pecc->device_id, + &error_fatal); + object_property_set_link(obj, "stack", OBJECT(stack), + &error_abort); + if (!sysbus_realize(SYS_BUS_DEVICE(obj), errp)) { + return; + } + }Do we really need the extra sub-scope here? It looks off.
No. That's a left over from the initial patches I worked on.
+ + pec_nest_base = pecc->xscom_nest_base(pec); + pec_pci_base = pecc->xscom_pci_base(pec); + + /* Populate the XSCOM address space. */ + pnv_xscom_add_subregion(chip, + pec_nest_base + 0x40 * (stack->stack_no + 1), + &stack->nest_regs_mr); + pnv_xscom_add_subregion(chip, + pec_pci_base + 0x40 * (stack->stack_no + 1), + &stack->pci_regs_mr); + pnv_xscom_add_subregion(chip, + pec_pci_base + PNV9_XSCOM_PEC_PCI_STK0 + + 0x40 * stack->stack_no, + &stack->phb_regs_mr); } static Property pnv_pec_stk_properties[] = { diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 3a550eed0f36..7e13b15241fd 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -1370,7 +1370,7 @@ static void pnv_chip_quad_realize(Pnv9Chip *chip9, Error **errp) static void pnv_chip_power9_phb_realize(PnvChip *chip, Error **errp) {With that change, we should really rename pnv_chip_power9_phb_realize() to pnv_chip_power9_pec_realize().
yes. Thanks, C.
FredPnv9Chip *chip9 = PNV9_CHIP(chip); - int i, j; + int i; for (i = 0; i < chip->num_pecs; i++) { PnvPhb4PecState *pec = &chip9->pecs[i]; @@ -1392,35 +1392,6 @@ static void pnv_chip_power9_phb_realize(PnvChip *chip, Error **errp) pnv_xscom_add_subregion(chip, pec_nest_base, &pec->nest_regs_mr); pnv_xscom_add_subregion(chip, pec_pci_base, &pec->pci_regs_mr); - - for (j = 0; j < pec->num_stacks; j++) { - PnvPhb4PecStack *stack = &pec->stacks[j]; - Object *obj = OBJECT(&stack->phb); - - object_property_set_int(obj, "chip-id", chip->chip_id, - &error_fatal); - object_property_set_int(obj, "version", pecc->version, - &error_fatal); - object_property_set_int(obj, "device-id", pecc->device_id, - &error_fatal); - object_property_set_link(obj, "stack", OBJECT(stack), - &error_abort); - if (!sysbus_realize(SYS_BUS_DEVICE(obj), errp)) { - return; - } - - /* Populate the XSCOM address space. */ - pnv_xscom_add_subregion(chip, - pec_nest_base + 0x40 * (stack->stack_no + 1), - &stack->nest_regs_mr); - pnv_xscom_add_subregion(chip, - pec_pci_base + 0x40 * (stack->stack_no + 1), - &stack->pci_regs_mr); - pnv_xscom_add_subregion(chip, - pec_pci_base + PNV9_XSCOM_PEC_PCI_STK0 + - 0x40 * stack->stack_no, - &stack->phb_regs_mr); - } } }
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