From patchwork Tue Aug 9 15:38:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 1664974 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4M2HpV75pgz9s2R for ; Wed, 10 Aug 2022 02:00:18 +1000 (AEST) Received: from localhost ([::1]:37136 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLReS-00046q-Pf for incoming@patchwork.ozlabs.org; Tue, 09 Aug 2022 12:00:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57852) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLRKq-0004fa-Br; Tue, 09 Aug 2022 11:40:01 -0400 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3]:51723 helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLRKo-0004SK-7O; Tue, 09 Aug 2022 11:40:00 -0400 Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4M2HLz6VDQz4xVL; Wed, 10 Aug 2022 01:39:55 +1000 (AEST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4M2HLx6D07z4xTv; Wed, 10 Aug 2022 01:39:53 +1000 (AEST) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-ppc@nongnu.org Cc: Daniel Henrique Barboza , qemu-devel@nongnu.org, BALATON Zoltan , Peter Maydell , =?utf-8?q?C=C3=A9dric_Le_Goater?= Subject: [PATCH v4 17/24] ppc/ppc405: QOM'ify PLB Date: Tue, 9 Aug 2022 17:38:57 +0200 Message-Id: <20220809153904.485018-18-clg@kaod.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220809153904.485018-1-clg@kaod.org> References: <20220809153904.485018-1-clg@kaod.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2404:9400:2221:ea00::3; envelope-from=SRS0=uImW=YN=kaod.org=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-ppc@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-ppc" 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 --- hw/ppc/ppc405.h | 14 +++++++++-- hw/ppc/ppc405_uc.c | 59 ++++++++++++++++++++++++++-------------------- hw/ppc/sam460ex.c | 4 +++- 3 files changed, 48 insertions(+), 29 deletions(-) diff --git a/hw/ppc/ppc405.h b/hw/ppc/ppc405.h index 4140e811d5ec..cb34792daf6b 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 2ea34090de49..7f4c616da67c 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) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = PPC405_PLB(opaque); uint32_t ret; - plb = opaque; switch (dcrn) { case PLB0_ACR: ret = plb->acr; @@ -182,9 +174,8 @@ static uint32_t dcr_read_plb (void *opaque, int dcrn) static void dcr_write_plb (void *opaque, int dcrn, uint32_t val) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = PPC405_PLB(opaque); - plb = opaque; switch (dcrn) { case PLB0_ACR: /* We don't care about the actual parameters written as @@ -202,28 +193,35 @@ 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 *opaque) { - ppc4xx_plb_t *plb; + Ppc405PlbState *plb = PPC405_PLB(opaque); - 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) +{ + Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); + + ppc4xx_dcr_register(dcr, PLB3A0_ACR, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB4A0_ACR, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_ACR, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_BEAR, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB0_BESR, &dcr_read_plb, &dcr_write_plb); + ppc4xx_dcr_register(dcr, PLB4A1_ACR, &dcr_read_plb, &dcr_write_plb); +} + +static void ppc405_plb_class_init(ObjectClass *oc, void *data) { - ppc4xx_plb_t *plb; - - 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); + DeviceClass *dc = DEVICE_CLASS(oc); + + dc->realize = ppc405_plb_realize; + /* Reason: only works as function of a ppc4xx SoC */ + dc->user_creatable = false; + dc->reset = ppc405_plb_reset; } /*****************************************************************************/ @@ -1368,6 +1366,8 @@ 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) @@ -1398,7 +1398,9 @@ 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)) { @@ -1523,6 +1525,11 @@ 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 320c61a7f36c..31139c1554de 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++) {