From 695bce07dc1c0f7de054fb471a494d572e649e07 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Wed, 17 Aug 2022 17:08:28 +0200 Subject: [PATCH] ppc/ppc405: QOM'ify PLB MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PLB is currently modeled as a simple DCR device. Also drop the ppc4xx_plb_init() helper and adapt the sam460ex machine. Reviewed-by: Daniel Henrique Barboza Signed-off-by: Cédric Le Goater [balaton: ppc4xx_dcr_register changes] Signed-off-by: BALATON Zoltan Message-Id: Signed-off-by: Daniel Henrique Barboza --- hw/ppc/ppc405.h | 14 +++++++++-- hw/ppc/ppc405_uc.c | 62 ++++++++++++++++++++++++++-------------------- hw/ppc/sam460ex.c | 4 ++- 3 files changed, 50 insertions(+), 30 deletions(-) diff --git a/hw/ppc/ppc405.h b/hw/ppc/ppc405.h index 4140e811d5..cb34792daf 100644 --- a/hw/ppc/ppc405.h +++ b/hw/ppc/ppc405.h @@ -63,6 +63,17 @@ struct ppc4xx_bd_info_t { uint32_t bi_iic_fast[2]; }; +/* Peripheral local bus arbitrer */ +#define TYPE_PPC405_PLB "ppc405-plb" +OBJECT_DECLARE_SIMPLE_TYPE(Ppc405PlbState, PPC405_PLB); +struct Ppc405PlbState { + Ppc4xxDcrDeviceState parent_obj; + + uint32_t acr; + uint32_t bear; + uint32_t besr; +}; + /* PLB to OPB bridge */ #define TYPE_PPC405_POB "ppc405-pob" OBJECT_DECLARE_SIMPLE_TYPE(Ppc405PobState, PPC405_POB); @@ -232,11 +243,10 @@ struct Ppc405SoCState { Ppc405EbcState ebc; Ppc405OpbaState opba; Ppc405PobState pob; + Ppc405PlbState plb; }; /* PowerPC 405 core */ ram_addr_t ppc405_set_bootinfo(CPUPPCState *env, ram_addr_t ram_size); -void ppc4xx_plb_init(CPUPPCState *env); - #endif /* PPC405_H */ diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c index e5604c3421..9ed3ce4ebe 100644 --- a/hw/ppc/ppc405_uc.c +++ b/hw/ppc/ppc405_uc.c @@ -148,19 +148,11 @@ enum { PLB4A1_ACR = 0x089, }; -typedef struct ppc4xx_plb_t ppc4xx_plb_t; -struct ppc4xx_plb_t { - uint32_t acr; - uint32_t bear; - uint32_t besr; -}; - -static uint32_t dcr_read_plb (void *opaque, int dcrn) +static uint32_t dcr_read_plb(void *opaque, int dcrn) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = opaque; uint32_t ret; - plb = opaque; switch (dcrn) { case PLB0_ACR: ret = plb->acr; @@ -180,11 +172,10 @@ static uint32_t dcr_read_plb (void *opaque, int dcrn) return ret; } -static void dcr_write_plb (void *opaque, int dcrn, uint32_t val) +static void dcr_write_plb(void *opaque, int dcrn, uint32_t val) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = opaque; - plb = opaque; switch (dcrn) { case PLB0_ACR: /* We don't care about the actual parameters written as @@ -202,28 +193,36 @@ static void dcr_write_plb (void *opaque, int dcrn, uint32_t val) } } -static void ppc4xx_plb_reset (void *opaque) +static void ppc405_plb_reset(DeviceState *dev) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = PPC405_PLB(dev); - plb = opaque; plb->acr = 0x00000000; plb->bear = 0x00000000; plb->besr = 0x00000000; } -void ppc4xx_plb_init(CPUPPCState *env) +static void ppc405_plb_realize(DeviceState *dev, Error **errp) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = PPC405_PLB(dev); + Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); - plb = g_new0(ppc4xx_plb_t, 1); - ppc_dcr_register(env, PLB3A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); - ppc_dcr_register(env, PLB4A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); - ppc_dcr_register(env, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb); - ppc_dcr_register(env, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb); - ppc_dcr_register(env, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb); - ppc_dcr_register(env, PLB4A1_ACR, plb, &dcr_read_plb, &dcr_write_plb); - qemu_register_reset(ppc4xx_plb_reset, plb); + ppc4xx_dcr_register(dcr, PLB3A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB4A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB4A1_ACR, plb, &dcr_read_plb, &dcr_write_plb); +} + +static void ppc405_plb_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + + dc->realize = ppc405_plb_realize; + dc->reset = ppc405_plb_reset; + /* Reason: only works as function of a ppc4xx SoC */ + dc->user_creatable = false; } /*****************************************************************************/ @@ -1374,6 +1373,8 @@ static void ppc405_soc_instance_init(Object *obj) object_initialize_child(obj, "opba", &s->opba, TYPE_PPC405_OPBA); object_initialize_child(obj, "pob", &s->pob, TYPE_PPC405_POB); + + object_initialize_child(obj, "plb", &s->plb, TYPE_PPC405_PLB); } static void ppc405_reset(void *opaque) @@ -1405,7 +1406,9 @@ static void ppc405_soc_realize(DeviceState *dev, Error **errp) } /* PLB arbitrer */ - ppc4xx_plb_init(env); + if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->plb), &s->cpu, errp)) { + return; + } /* PLB to OPB bridge */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->pob), &s->cpu, errp)) { @@ -1530,6 +1533,11 @@ static void ppc405_soc_class_init(ObjectClass *oc, void *data) static const TypeInfo ppc405_types[] = { { + .name = TYPE_PPC405_PLB, + .parent = TYPE_PPC4xx_DCR_DEVICE, + .instance_size = sizeof(Ppc405PlbState), + .class_init = ppc405_plb_class_init, + }, { .name = TYPE_PPC405_POB, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc405PobState), diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c index 320c61a7f3..31139c1554 100644 --- a/hw/ppc/sam460ex.c +++ b/hw/ppc/sam460ex.c @@ -309,7 +309,9 @@ static void sam460ex_init(MachineState *machine) ppc_dcr_init(env, NULL, NULL); /* PLB arbitrer */ - ppc4xx_plb_init(env); + dev = qdev_new(TYPE_PPC405_PLB); + ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(dev), cpu, &error_fatal); + object_unref(OBJECT(dev)); /* interrupt controllers */ for (i = 0; i < ARRAY_SIZE(uic); i++) {