From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51243) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aflm6-0001oQ-CM for qemu-devel@nongnu.org; Tue, 15 Mar 2016 06:00:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aflm2-0007mh-8o for qemu-devel@nongnu.org; Tue, 15 Mar 2016 06:00:26 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:55078) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aflm2-0007mX-0X for qemu-devel@nongnu.org; Tue, 15 Mar 2016 06:00:22 -0400 From: Leon Alrae Date: Tue, 15 Mar 2016 09:59:28 +0000 Message-ID: <1458035976-23414-4-git-send-email-leon.alrae@imgtec.com> In-Reply-To: <1458035976-23414-1-git-send-email-leon.alrae@imgtec.com> References: <1458035976-23414-1-git-send-email-leon.alrae@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH v2 03/11] hw/mips: add initial Global Config Register support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: yongbok.kim@imgtec.com, peter.maydell@linaro.org, james.hogan@imgtec.com, aurelien@aurel32.net From: Yongbok Kim Add initial GCR support to indicate number of VPs present in the system, L2 bypass mode and revision number. Signed-off-by: Yongbok Kim [leon.alrae@imgtec.com: * removed GIC part, * changed commit message, * replaced %lx format spec. with PRIx64, * renamed mips_gcr.{c,h} to mips_cmgcr.{c,h}, * replaced CONFIG_MIPS_GIC with CONFIG_MIPS_CPS] Signed-off-by: Leon Alrae --- hw/misc/Makefile.objs | 1 + hw/misc/mips_cmgcr.c | 106 +++++++++++++++++++++++++++++++++++++++++++ include/hw/misc/mips_cmgcr.h | 49 ++++++++++++++++++++ 3 files changed, 156 insertions(+) create mode 100644 hw/misc/mips_cmgcr.c create mode 100644 include/hw/misc/mips_cmgcr.h diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs index ea6cd3c..61faa05 100644 --- a/hw/misc/Makefile.objs +++ b/hw/misc/Makefile.objs @@ -42,6 +42,7 @@ obj-$(CONFIG_SLAVIO) += slavio_misc.o obj-$(CONFIG_ZYNQ) += zynq_slcr.o obj-$(CONFIG_ZYNQ) += zynq-xadc.o obj-$(CONFIG_STM32F2XX_SYSCFG) += stm32f2xx_syscfg.o +obj-$(CONFIG_MIPS_CPS) += mips_cmgcr.o obj-$(CONFIG_PVPANIC) += pvpanic.o obj-$(CONFIG_EDU) += edu.o diff --git a/hw/misc/mips_cmgcr.c b/hw/misc/mips_cmgcr.c new file mode 100644 index 0000000..bf3be79 --- /dev/null +++ b/hw/misc/mips_cmgcr.c @@ -0,0 +1,106 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Authors: Sanjay Lal + * + * Copyright (C) 2015 Imagination Technologies + */ + +#include "qemu/osdep.h" +#include "hw/hw.h" +#include "hw/sysbus.h" +#include "sysemu/sysemu.h" +#include "hw/misc/mips_cmgcr.h" + +/* Read GCR registers */ +static uint64_t gcr_read(void *opaque, hwaddr addr, unsigned size) +{ + MIPSGCRState *gcr = (MIPSGCRState *) opaque; + + switch (addr) { + /* Global Control Block Register */ + case GCR_CONFIG_OFS: + /* Set PCORES to 0 */ + return 0; + case GCR_BASE_OFS: + return gcr->gcr_base; + case GCR_REV_OFS: + return gcr->gcr_rev; + case GCR_L2_CONFIG_OFS: + /* L2 BYPASS */ + return GCR_L2_CONFIG_BYPASS_MSK; + /* Core-Local and Core-Other Control Blocks */ + case MIPS_CLCB_OFS + GCR_CL_CONFIG_OFS: + case MIPS_COCB_OFS + GCR_CL_CONFIG_OFS: + /* Set PVP to # of VPs - 1 */ + return gcr->num_vps - 1; + case MIPS_CLCB_OFS + GCR_CL_OTHER_OFS: + return 0; + default: + qemu_log_mask(LOG_UNIMP, "Read %d bytes at GCR offset 0x%" HWADDR_PRIx + "\n", size, addr); + return 0; + } + return 0; +} + +/* Write GCR registers */ +static void gcr_write(void *opaque, hwaddr addr, uint64_t data, unsigned size) +{ + switch (addr) { + default: + qemu_log_mask(LOG_UNIMP, "Write %d bytes at GCR offset 0x%" HWADDR_PRIx + " 0x%" PRIx64 "\n", size, addr, data); + break; + } +} + +static const MemoryRegionOps gcr_ops = { + .read = gcr_read, + .write = gcr_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .max_access_size = 8, + }, +}; + +static void mips_gcr_init(Object *obj) +{ + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + MIPSGCRState *s = MIPS_GCR(obj); + + memory_region_init_io(&s->iomem, OBJECT(s), &gcr_ops, s, + "mips-gcr", GCR_ADDRSPACE_SZ); + sysbus_init_mmio(sbd, &s->iomem); +} + +static Property mips_gcr_properties[] = { + DEFINE_PROP_INT32("num-vp", MIPSGCRState, num_vps, 1), + DEFINE_PROP_INT32("gcr-rev", MIPSGCRState, gcr_rev, 0x800), + DEFINE_PROP_UINT64("gcr-base", MIPSGCRState, gcr_base, GCR_BASE_ADDR), + DEFINE_PROP_END_OF_LIST(), +}; + +static void mips_gcr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + dc->props = mips_gcr_properties; +} + +static const TypeInfo mips_gcr_info = { + .name = TYPE_MIPS_GCR, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(MIPSGCRState), + .instance_init = mips_gcr_init, + .class_init = mips_gcr_class_init, +}; + +static void mips_gcr_register_types(void) +{ + type_register_static(&mips_gcr_info); +} + +type_init(mips_gcr_register_types) diff --git a/include/hw/misc/mips_cmgcr.h b/include/hw/misc/mips_cmgcr.h new file mode 100644 index 0000000..69403c3 --- /dev/null +++ b/include/hw/misc/mips_cmgcr.h @@ -0,0 +1,49 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2015 Imagination Technologies + * + */ + +#ifndef _MIPS_GCR_H +#define _MIPS_GCR_H + +#define TYPE_MIPS_GCR "mips-gcr" +#define MIPS_GCR(obj) OBJECT_CHECK(MIPSGCRState, (obj), TYPE_MIPS_GCR) + +#define GCR_BASE_ADDR 0x1fbf8000ULL +#define GCR_ADDRSPACE_SZ 0x8000 + +/* Offsets to register blocks */ +#define MIPS_GCB_OFS 0x0000 /* Global Control Block */ +#define MIPS_CLCB_OFS 0x2000 /* Core Local Control Block */ +#define MIPS_COCB_OFS 0x4000 /* Core Other Control Block */ +#define MIPS_GDB_OFS 0x6000 /* Global Debug Block */ + +/* Global Control Block Register Map */ +#define GCR_CONFIG_OFS 0x0000 +#define GCR_BASE_OFS 0x0008 +#define GCR_REV_OFS 0x0030 +#define GCR_L2_CONFIG_OFS 0x0130 + +/* Core Local and Core Other Block Register Map */ +#define GCR_CL_CONFIG_OFS 0x0010 +#define GCR_CL_OTHER_OFS 0x0018 + +/* GCR_L2_CONFIG register fields */ +#define GCR_L2_CONFIG_BYPASS_SHF 20 +#define GCR_L2_CONFIG_BYPASS_MSK ((0x1ULL) << GCR_L2_CONFIG_BYPASS_SHF) + +typedef struct MIPSGCRState MIPSGCRState; +struct MIPSGCRState { + SysBusDevice parent_obj; + + int32_t gcr_rev; + int32_t num_vps; + hwaddr gcr_base; + MemoryRegion iomem; +}; + +#endif /* _MIPS_GCR_H */ -- 2.1.0