From b63f389366fbc586ce82f95ad808a51bc9f95c71 Mon Sep 17 00:00:00 2001 From: Greg Kurz Date: Fri, 15 Nov 2019 16:55:43 +0100 Subject: [PATCH] ppc/pnv: Link "psi" property to PnvLpc::psi pointer The LPC object has both a pointer and a "psi" property pointing to the PSI object. Confusing bugs could arise if these ever go out of sync. Change the property definition so that it explicitely sets the pointer. Signed-off-by: Greg Kurz Message-Id: <157383334342.165747.3159314903077305653.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/ppc/pnv.c | 8 ++++---- hw/ppc/pnv_lpc.c | 19 ++++++++----------- 2 files changed, 12 insertions(+), 15 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 4e9ddc05ad..201facc701 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -901,8 +901,6 @@ static void pnv_chip_power8_instance_init(Object *obj) object_initialize_child(obj, "lpc", &chip8->lpc, sizeof(chip8->lpc), TYPE_PNV8_LPC, &error_abort, NULL); - object_property_add_const_link(OBJECT(&chip8->lpc), "psi", - OBJECT(&chip8->psi), &error_abort); object_initialize_child(obj, "occ", &chip8->occ, sizeof(chip8->occ), TYPE_PNV8_OCC, &error_abort, NULL); @@ -981,6 +979,8 @@ static void pnv_chip_power8_realize(DeviceState *dev, Error **errp) &PNV_PSI(psi8)->xscom_regs); /* Create LPC controller */ + object_property_set_link(OBJECT(&chip8->lpc), OBJECT(&chip8->psi), "psi", + &error_abort); object_property_set_bool(OBJECT(&chip8->lpc), true, "realized", &error_fatal); pnv_xscom_add_subregion(chip, PNV_XSCOM_LPC_BASE, &chip8->lpc.xscom_regs); @@ -1099,8 +1099,6 @@ static void pnv_chip_power9_instance_init(Object *obj) object_initialize_child(obj, "lpc", &chip9->lpc, sizeof(chip9->lpc), TYPE_PNV9_LPC, &error_abort, NULL); - object_property_add_const_link(OBJECT(&chip9->lpc), "psi", - OBJECT(&chip9->psi), &error_abort); object_initialize_child(obj, "occ", &chip9->occ, sizeof(chip9->occ), TYPE_PNV9_OCC, &error_abort, NULL); @@ -1199,6 +1197,8 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp) &PNV_PSI(psi9)->xscom_regs); /* LPC */ + object_property_set_link(OBJECT(&chip9->lpc), OBJECT(&chip9->psi), "psi", + &error_abort); object_property_set_bool(OBJECT(&chip9->lpc), true, "realized", &local_err); if (local_err) { error_propagate(errp, local_err); diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c index 9466d4a1be..fb9f930320 100644 --- a/hw/ppc/pnv_lpc.c +++ b/hw/ppc/pnv_lpc.c @@ -24,7 +24,7 @@ #include "qemu/module.h" #include "hw/irq.h" #include "hw/isa/isa.h" - +#include "hw/qdev-properties.h" #include "hw/ppc/pnv.h" #include "hw/ppc/pnv_lpc.h" #include "hw/ppc/pnv_xscom.h" @@ -682,17 +682,8 @@ static const TypeInfo pnv_lpc_power9_info = { static void pnv_lpc_realize(DeviceState *dev, Error **errp) { PnvLpcController *lpc = PNV_LPC(dev); - Object *obj; - Error *local_err = NULL; - obj = object_property_get_link(OBJECT(dev), "psi", &local_err); - if (!obj) { - error_propagate(errp, local_err); - error_prepend(errp, "required link 'psi' not found: "); - return; - } - /* The LPC controller needs PSI to generate interrupts */ - lpc->psi = PNV_PSI(obj); + assert(lpc->psi); /* Reg inits */ lpc->lpc_hc_fw_rd_acc_size = LPC_HC_FW_RD_4B; @@ -734,12 +725,18 @@ static void pnv_lpc_realize(DeviceState *dev, Error **errp) &lpc->lpc_hc_regs); } +static Property pnv_lpc_properties[] = { + DEFINE_PROP_LINK("psi", PnvLpcController, psi, TYPE_PNV_PSI, PnvPsi *), + DEFINE_PROP_END_OF_LIST(), +}; + static void pnv_lpc_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = pnv_lpc_realize; dc->desc = "PowerNV LPC Controller"; + dc->props = pnv_lpc_properties; } static const TypeInfo pnv_lpc_info = { -- 2.11.0