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Re: [PATCH 08/13] ppc/pnv: Introduce PnvChipClass::xscom_core_base() met
From: |
Cédric Le Goater |
Subject: |
Re: [PATCH 08/13] ppc/pnv: Introduce PnvChipClass::xscom_core_base() method |
Date: |
Fri, 13 Dec 2019 14:01:36 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 |
On 13/12/2019 13:00, Greg Kurz wrote:
> The pnv_chip_core_realize() function configures the XSCOM MMIO subregion
> for each core of a single chip. The base address of the subregion depends
> on the CPU type. Its computation is currently open-code using the
> pnv_chip_is_powerXX() helpers. This can be achieved with QOM. Introduce
> a method for this in the base chip class and implement it in child classes.
OK. We might need to introduce a PnvXscom model one day but this is fine
for now.
> Signed-off-by: Greg Kurz <address@hidden>
Reviewed-by: Cédric Le Goater <address@hidden>
> ---
> hw/ppc/pnv.c | 31 ++++++++++++++++++++++++-------
> include/hw/ppc/pnv.h | 1 +
> 2 files changed, 25 insertions(+), 7 deletions(-)
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 2a53e99bda2e..88efa755e611 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -616,6 +616,24 @@ static void pnv_chip_power9_pic_print_info(PnvChip
> *chip, Monitor *mon)
> pnv_psi_pic_print_info(&chip9->psi, mon);
> }
>
> +static uint64_t pnv_chip_power8_xscom_core_base(PnvChip *chip,
> + uint32_t core_id)
> +{
> + return PNV_XSCOM_EX_BASE(core_id);
> +}
> +
> +static uint64_t pnv_chip_power9_xscom_core_base(PnvChip *chip,
> + uint32_t core_id)
> +{
> + return PNV9_XSCOM_EC_BASE(core_id);
> +}
> +
> +static uint64_t pnv_chip_power10_xscom_core_base(PnvChip *chip,
> + uint32_t core_id)
> +{
> + return PNV10_XSCOM_EC_BASE(core_id);
> +}
> +
> static bool pnv_match_cpu(const char *default_type, const char *cpu_type)
> {
> PowerPCCPUClass *ppc_default =
> @@ -1107,6 +1125,7 @@ static void pnv_chip_power8e_class_init(ObjectClass
> *klass, void *data)
> k->isa_create = pnv_chip_power8_isa_create;
> k->dt_populate = pnv_chip_power8_dt_populate;
> k->pic_print_info = pnv_chip_power8_pic_print_info;
> + k->xscom_core_base = pnv_chip_power8_xscom_core_base;
> dc->desc = "PowerNV Chip POWER8E";
>
> device_class_set_parent_realize(dc, pnv_chip_power8_realize,
> @@ -1129,6 +1148,7 @@ static void pnv_chip_power8_class_init(ObjectClass
> *klass, void *data)
> k->isa_create = pnv_chip_power8_isa_create;
> k->dt_populate = pnv_chip_power8_dt_populate;
> k->pic_print_info = pnv_chip_power8_pic_print_info;
> + k->xscom_core_base = pnv_chip_power8_xscom_core_base;
> dc->desc = "PowerNV Chip POWER8";
>
> device_class_set_parent_realize(dc, pnv_chip_power8_realize,
> @@ -1151,6 +1171,7 @@ static void pnv_chip_power8nvl_class_init(ObjectClass
> *klass, void *data)
> k->isa_create = pnv_chip_power8nvl_isa_create;
> k->dt_populate = pnv_chip_power8_dt_populate;
> k->pic_print_info = pnv_chip_power8_pic_print_info;
> + k->xscom_core_base = pnv_chip_power8_xscom_core_base;
> dc->desc = "PowerNV Chip POWER8NVL";
>
> device_class_set_parent_realize(dc, pnv_chip_power8_realize,
> @@ -1323,6 +1344,7 @@ static void pnv_chip_power9_class_init(ObjectClass
> *klass, void *data)
> k->isa_create = pnv_chip_power9_isa_create;
> k->dt_populate = pnv_chip_power9_dt_populate;
> k->pic_print_info = pnv_chip_power9_pic_print_info;
> + k->xscom_core_base = pnv_chip_power9_xscom_core_base;
> dc->desc = "PowerNV Chip POWER9";
>
> device_class_set_parent_realize(dc, pnv_chip_power9_realize,
> @@ -1404,6 +1426,7 @@ static void pnv_chip_power10_class_init(ObjectClass
> *klass, void *data)
> k->isa_create = pnv_chip_power10_isa_create;
> k->dt_populate = pnv_chip_power10_dt_populate;
> k->pic_print_info = pnv_chip_power10_pic_print_info;
> + k->xscom_core_base = pnv_chip_power10_xscom_core_base;
> dc->desc = "PowerNV Chip POWER10";
>
> device_class_set_parent_realize(dc, pnv_chip_power10_realize,
> @@ -1491,13 +1514,7 @@ static void pnv_chip_core_realize(PnvChip *chip, Error
> **errp)
> &error_fatal);
>
> /* Each core has an XSCOM MMIO region */
> - if (pnv_chip_is_power10(chip)) {
> - xscom_core_base = PNV10_XSCOM_EC_BASE(core_hwid);
> - } else if (pnv_chip_is_power9(chip)) {
> - xscom_core_base = PNV9_XSCOM_EC_BASE(core_hwid);
> - } else {
> - xscom_core_base = PNV_XSCOM_EX_BASE(core_hwid);
> - }
> + xscom_core_base = pcc->xscom_core_base(chip, core_hwid);
>
> pnv_xscom_add_subregion(chip, xscom_core_base,
> &pnv_core->xscom_regs);
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index 7d2402784d4b..17ca9a14ac8f 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -137,6 +137,7 @@ typedef struct PnvChipClass {
> ISABus *(*isa_create)(PnvChip *chip, Error **errp);
> 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);
> } PnvChipClass;
>
> #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
>
- Re: [PATCH 04/13] ppc/pnv: Introduce PnvMachineClass and PnvMachineClass::compat, (continued)
- [PATCH 08/13] ppc/pnv: Introduce PnvChipClass::xscom_core_base() method, Greg Kurz, 2019/12/13
- Re: [PATCH 08/13] ppc/pnv: Introduce PnvChipClass::xscom_core_base() method,
Cédric Le Goater <=
- [PATCH 09/13] ppc/pnv: Pass XSCOM base address and address size to pnv_dt_xscom(), Greg Kurz, 2019/12/13
- [PATCH 11/13] ppc/pnv: Drop pnv_chip_is_power9() and pnv_chip_is_power10() helpers, Greg Kurz, 2019/12/13
- [PATCH 10/13] ppc/pnv: Pass content of the "compatible" property to pnv_dt_xscom(), Greg Kurz, 2019/12/13
- [PATCH 12/13] ppc/pnv: Introduce PnvChipClass::xscom_pcba() method, Greg Kurz, 2019/12/13
- [PATCH 13/13] ppc/pnv: Drop PnvChipClass::type, Greg Kurz, 2019/12/13