From nobody Tue Feb 10 00:23:26 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1576562059; cv=none; d=zohomail.com; s=zohoarc; b=hHi+pk1DYKQiKLI6Gvt6LPVTUscXxkS+ZGm45YESbEb76AakXUOpKkZA/XAevSVnu5Cep6DPXxEb8P0YPL6ycAJwaeZ9m8BkZ4KMWy2xcNi7nPXgaM0t85I6fQss0Q9BGLndzjKvVgXnEdTqx8T0TDveM5cvO2Ef+hCGTZ52qHc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576562059; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=828AYRg6Y0k65nnjivpgBT9SArMGeBIyGmbcv0lIXeE=; b=L2MH+/fgBcjUZxWvhM+hxp7KDxhr0ptoK0d7d7FM39OzkADkEtHgmImBxSHCgyj1C1nb+bI4anQJ/+YChZQuOt5m8wmh1oMHlkhi2yv4zjTpIcLfRRdzVWx2mp3NtrrsBF8u8wcM9ULWWMQlVSSwhFgfkNEk7X74POTIxr/diCo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1576562059149758.1311045614436; Mon, 16 Dec 2019 21:54:19 -0800 (PST) Received: from localhost ([::1]:36274 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih5oI-0006JX-2j for importer@patchew.org; Tue, 17 Dec 2019 00:54:18 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36277) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih4kt-0003VX-SD for qemu-devel@nongnu.org; Mon, 16 Dec 2019 23:46:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ih4ks-0001KB-GZ for qemu-devel@nongnu.org; Mon, 16 Dec 2019 23:46:43 -0500 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:35953 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ih4ks-0000F6-5x; Mon, 16 Dec 2019 23:46:42 -0500 Received: by ozlabs.org (Postfix, from userid 1007) id 47cQWm0zKgz9sRc; Tue, 17 Dec 2019 15:43:45 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1576557828; bh=jJaUvC3L1J19szq6Xx2t4DAcLfJF1KIsBpr7HLRkc1Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sejz2c9OpmwdASBQpfvQUZzBPFIIfXcZsD5g4r4E7SXFbnG53Eq5hrNPjBLekwKdB nUVKXqYulIVsuOmGUVG6A9mDqyML1IUGNTUYpSO8h+T0Xt4E1OdA/sN++YWAlTk3t+ nTFfpixPtZaSUivunTFU/iMN1xGA5EDe0aVN2i8M= From: David Gibson To: peter.maydell@linaro.org Subject: [PULL 86/88] ppc/pnv: Introduce PnvChipClass::xscom_pcba() method Date: Tue, 17 Dec 2019 15:43:20 +1100 Message-Id: <20191217044322.351838-87-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191217044322.351838-1-david@gibson.dropbear.id.au> References: <20191217044322.351838-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2401:3900:2:1::2 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lvivier@redhat.com, aik@ozlabs.ru, qemu-devel@nongnu.org, groug@kaod.org, qemu-ppc@nongnu.org, clg@kaod.org, David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Greg Kurz The XSCOM bus is implemented with a QOM interface, which is mostly generic from a CPU type standpoint, except for the computation of addresses on the Pervasive Connect Bus (PCB) network. This is handled by the pnv_xscom_pcba() function with a switch statement based on the chip_type class level attribute of the CPU chip. This can be achieved using QOM. Also the address argument is masked with PNV_XSCOM_SIZE - 1, which is for POWER8 only. Addresses may have different sizes with other CPU types. Have each CPU chip type handle the appropriate computation with a QOM xscom_pcba() method. Signed-off-by: Greg Kurz Message-Id: <157623843543.360005.13996472463887521794.stgit@bahia.lan> Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: David Gibson --- hw/ppc/pnv.c | 23 +++++++++++++++++++++++ hw/ppc/pnv_xscom.c | 14 +------------- include/hw/ppc/pnv.h | 1 + 3 files changed, 25 insertions(+), 13 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index b3388038c6..41e5d762df 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -1120,6 +1120,12 @@ static void pnv_chip_power8_realize(DeviceState *dev= , Error **errp) &chip8->homer.regs); } =20 +static uint32_t pnv_chip_power8_xscom_pcba(PnvChip *chip, uint64_t addr) +{ + addr &=3D (PNV_XSCOM_SIZE - 1); + return ((addr >> 4) & ~0xfull) | ((addr >> 3) & 0xf); +} + static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); @@ -1137,6 +1143,7 @@ static void pnv_chip_power8e_class_init(ObjectClass *= klass, void *data) k->dt_populate =3D pnv_chip_power8_dt_populate; k->pic_print_info =3D pnv_chip_power8_pic_print_info; k->xscom_core_base =3D pnv_chip_power8_xscom_core_base; + k->xscom_pcba =3D pnv_chip_power8_xscom_pcba; dc->desc =3D "PowerNV Chip POWER8E"; =20 device_class_set_parent_realize(dc, pnv_chip_power8_realize, @@ -1160,6 +1167,7 @@ static void pnv_chip_power8_class_init(ObjectClass *k= lass, void *data) k->dt_populate =3D pnv_chip_power8_dt_populate; k->pic_print_info =3D pnv_chip_power8_pic_print_info; k->xscom_core_base =3D pnv_chip_power8_xscom_core_base; + k->xscom_pcba =3D pnv_chip_power8_xscom_pcba; dc->desc =3D "PowerNV Chip POWER8"; =20 device_class_set_parent_realize(dc, pnv_chip_power8_realize, @@ -1183,6 +1191,7 @@ static void pnv_chip_power8nvl_class_init(ObjectClass= *klass, void *data) k->dt_populate =3D pnv_chip_power8_dt_populate; k->pic_print_info =3D pnv_chip_power8_pic_print_info; k->xscom_core_base =3D pnv_chip_power8_xscom_core_base; + k->xscom_pcba =3D pnv_chip_power8_xscom_pcba; dc->desc =3D "PowerNV Chip POWER8NVL"; =20 device_class_set_parent_realize(dc, pnv_chip_power8_realize, @@ -1339,6 +1348,12 @@ static void pnv_chip_power9_realize(DeviceState *dev= , Error **errp) &chip9->homer.regs); } =20 +static uint32_t pnv_chip_power9_xscom_pcba(PnvChip *chip, uint64_t addr) +{ + addr &=3D (PNV9_XSCOM_SIZE - 1); + return addr >> 3; +} + static void pnv_chip_power9_class_init(ObjectClass *klass, void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); @@ -1356,6 +1371,7 @@ static void pnv_chip_power9_class_init(ObjectClass *k= lass, void *data) k->dt_populate =3D pnv_chip_power9_dt_populate; k->pic_print_info =3D pnv_chip_power9_pic_print_info; k->xscom_core_base =3D pnv_chip_power9_xscom_core_base; + k->xscom_pcba =3D pnv_chip_power9_xscom_pcba; dc->desc =3D "PowerNV Chip POWER9"; =20 device_class_set_parent_realize(dc, pnv_chip_power9_realize, @@ -1421,6 +1437,12 @@ static void pnv_chip_power10_realize(DeviceState *de= v, Error **errp) (uint64_t) PNV10_LPCM_BASE(chi= p)); } =20 +static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr) +{ + addr &=3D (PNV10_XSCOM_SIZE - 1); + return addr >> 3; +} + static void pnv_chip_power10_class_init(ObjectClass *klass, void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); @@ -1438,6 +1460,7 @@ static void pnv_chip_power10_class_init(ObjectClass *= klass, void *data) k->dt_populate =3D pnv_chip_power10_dt_populate; k->pic_print_info =3D pnv_chip_power10_pic_print_info; k->xscom_core_base =3D pnv_chip_power10_xscom_core_base; + k->xscom_pcba =3D pnv_chip_power10_xscom_pcba; dc->desc =3D "PowerNV Chip POWER10"; =20 device_class_set_parent_realize(dc, pnv_chip_power10_realize, diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c index 5ae9dfbb88..b681c72575 100644 --- a/hw/ppc/pnv_xscom.c +++ b/hw/ppc/pnv_xscom.c @@ -57,19 +57,7 @@ static void xscom_complete(CPUState *cs, uint64_t hmer_b= its) =20 static uint32_t pnv_xscom_pcba(PnvChip *chip, uint64_t addr) { - addr &=3D (PNV_XSCOM_SIZE - 1); - - switch (PNV_CHIP_GET_CLASS(chip)->chip_type) { - case PNV_CHIP_POWER8E: - case PNV_CHIP_POWER8: - case PNV_CHIP_POWER8NVL: - return ((addr >> 4) & ~0xfull) | ((addr >> 3) & 0xf); - case PNV_CHIP_POWER9: - case PNV_CHIP_POWER10: - return addr >> 3; - default: - g_assert_not_reached(); - } + return PNV_CHIP_GET_CLASS(chip)->xscom_pcba(chip, addr); } =20 static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba) diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index 7a134a15d3..4972e93c26 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -138,6 +138,7 @@ typedef struct PnvChipClass { 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); + uint32_t (*xscom_pcba)(PnvChip *chip, uint64_t addr); } PnvChipClass; =20 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP --=20 2.23.0