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Thu, 24 Sep 2020 19:51:00 +0530 (IST) From: Sai Pavan Boddu To: Peter Maydell , Markus Armbruster , =?utf-8?q?=27Marc-Andr=C3=A9_Lureau?= =?utf-8?q?=27?= , Paolo Bonzini , Gerd Hoffmann , Edgar Iglesias , Francisco Eduardo Iglesias Subject: [PATCH v10 5/7] misc: Add versal-usb2-ctrl-regs module Date: Thu, 24 Sep 2020 19:50:54 +0530 Message-Id: <1600957256-6494-6-git-send-email-sai.pavan.boddu@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1600957256-6494-1-git-send-email-sai.pavan.boddu@xilinx.com> References: <1600957256-6494-1-git-send-email-sai.pavan.boddu@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-MS-PublicTrafficType: Email MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: aaf91202-99cc-48dd-9ffa-08d8609499b9 X-MS-TrafficTypeDiagnostic: DM5PR02MB3385: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:352; 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DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Sep 2020 14:17:42.3290 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aaf91202-99cc-48dd-9ffa-08d8609499b9 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-AuthSource: SN1NAM02FT024.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR02MB3385 Received-SPF: pass client-ip=40.107.94.45; envelope-from=saipava@xilinx.com; helo=NAM10-MW2-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/24 10:17:44 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Eduardo Habkost , Vikram Garhwal , qemu-devel@nongnu.org, Paul Zimmerman , Sai Pavan Boddu , Alistair Francis , Ying Fang , =?utf-8?q?=27Philippe_Mathieu-Daud=C3=A9?= =?utf-8?q?=27?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This module emulates control registers of versal usb2 controller, this is added just to make guest happy. In general this module would control the phy-reset signal from usb controller, data coherency of the transactions, signals the host system errors received from controller. Signed-off-by: Sai Pavan Boddu Signed-off-by: Vikram Garhwal --- hw/misc/meson.build | 1 + hw/misc/xlnx-versal-usb2-ctrl-regs.c | 222 +++++++++++++++++++++++++++ include/hw/misc/xlnx-versal-usb2-ctrl-regs.h | 45 ++++++ 3 files changed, 268 insertions(+) create mode 100644 hw/misc/xlnx-versal-usb2-ctrl-regs.c create mode 100644 include/hw/misc/xlnx-versal-usb2-ctrl-regs.h diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 793d45b..b336dd1 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -109,3 +109,4 @@ specific_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files('mips_cmgcr.c', 'mips_cp specific_ss.add(when: 'CONFIG_MIPS_ITU', if_true: files('mips_itu.c')) specific_ss.add(when: 'CONFIG_SBSA_REF', if_true: files('sbsa_ec.c')) +specific_ss.add(when: 'CONFIG_XLNX_VERSAL', if_true: files('xlnx-versal-usb2-ctrl-regs.c')) diff --git a/hw/misc/xlnx-versal-usb2-ctrl-regs.c b/hw/misc/xlnx-versal-usb2-ctrl-regs.c new file mode 100644 index 0000000..94fd7cf --- /dev/null +++ b/hw/misc/xlnx-versal-usb2-ctrl-regs.c @@ -0,0 +1,222 @@ +/* + * QEMU model of the VersalUsb2CtrlRegs Register control/Status block for + * USB2.0 controller + * + * This module should control phy_reset, permanent device plugs, frame length + * time adjust & setting of coherency paths. None of which are emulated in + * present model. + * + * Copyright (c) 2020 Xilinx Inc. Vikram Garhwal + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/irq.h" +#include "hw/register.h" +#include "qemu/bitops.h" +#include "qemu/log.h" +#include "qom/object.h" +#include "migration/vmstate.h" +#include "hw/misc/xlnx-versal-usb2-ctrl-regs.h" + +#ifndef XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG +#define XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG 0 +#endif + +REG32(BUS_FILTER, 0x30) + FIELD(BUS_FILTER, BYPASS, 0, 4) +REG32(PORT, 0x34) + FIELD(PORT, HOST_SMI_BAR_WR, 4, 1) + FIELD(PORT, HOST_SMI_PCI_CMD_REG_WR, 3, 1) + FIELD(PORT, HOST_MSI_ENABLE, 2, 1) + FIELD(PORT, PWR_CTRL_PRSNT, 1, 1) + FIELD(PORT, HUB_PERM_ATTACH, 0, 1) +REG32(JITTER_ADJUST, 0x38) + FIELD(JITTER_ADJUST, FLADJ, 0, 6) +REG32(BIGENDIAN, 0x40) + FIELD(BIGENDIAN, ENDIAN_GS, 0, 1) +REG32(COHERENCY, 0x44) + FIELD(COHERENCY, USB_COHERENCY, 0, 1) +REG32(XHC_BME, 0x48) + FIELD(XHC_BME, XHC_BME, 0, 1) +REG32(REG_CTRL, 0x60) + FIELD(REG_CTRL, SLVERR_ENABLE, 0, 1) +REG32(IR_STATUS, 0x64) + FIELD(IR_STATUS, HOST_SYS_ERR, 1, 1) + FIELD(IR_STATUS, ADDR_DEC_ERR, 0, 1) +REG32(IR_MASK, 0x68) + FIELD(IR_MASK, HOST_SYS_ERR, 1, 1) + FIELD(IR_MASK, ADDR_DEC_ERR, 0, 1) +REG32(IR_ENABLE, 0x6c) + FIELD(IR_ENABLE, HOST_SYS_ERR, 1, 1) + FIELD(IR_ENABLE, ADDR_DEC_ERR, 0, 1) +REG32(IR_DISABLE, 0x70) + FIELD(IR_DISABLE, HOST_SYS_ERR, 1, 1) + FIELD(IR_DISABLE, ADDR_DEC_ERR, 0, 1) +REG32(USB3, 0x78) + +static void ir_update_irq(VersalUsb2CtrlRegs *s) +{ + bool pending = s->regs[R_IR_STATUS] & ~s->regs[R_IR_MASK]; + qemu_set_irq(s->irq_ir, pending); +} + +static void ir_status_postw(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + /* + * TODO: This should also clear USBSTS.HSE field in USB XHCI register. + * May be combine both the modules. + */ + ir_update_irq(s); +} + +static uint64_t ir_enable_prew(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + uint32_t val = val64; + + s->regs[R_IR_MASK] &= ~val; + ir_update_irq(s); + return 0; +} + +static uint64_t ir_disable_prew(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + uint32_t val = val64; + + s->regs[R_IR_MASK] |= val; + ir_update_irq(s); + return 0; +} + +static const RegisterAccessInfo usb2_regs_regs_info[] = { + { .name = "BUS_FILTER", .addr = A_BUS_FILTER, + .rsvd = 0xfffffff0, + },{ .name = "PORT", .addr = A_PORT, + .rsvd = 0xffffffe0, + },{ .name = "JITTER_ADJUST", .addr = A_JITTER_ADJUST, + .reset = 0x20, + .rsvd = 0xffffffc0, + },{ .name = "BIGENDIAN", .addr = A_BIGENDIAN, + .rsvd = 0xfffffffe, + },{ .name = "COHERENCY", .addr = A_COHERENCY, + .rsvd = 0xfffffffe, + },{ .name = "XHC_BME", .addr = A_XHC_BME, + .reset = 0x1, + .rsvd = 0xfffffffe, + },{ .name = "REG_CTRL", .addr = A_REG_CTRL, + .rsvd = 0xfffffffe, + },{ .name = "IR_STATUS", .addr = A_IR_STATUS, + .rsvd = 0xfffffffc, + .w1c = 0x3, + .post_write = ir_status_postw, + },{ .name = "IR_MASK", .addr = A_IR_MASK, + .reset = 0x3, + .rsvd = 0xfffffffc, + .ro = 0x3, + },{ .name = "IR_ENABLE", .addr = A_IR_ENABLE, + .rsvd = 0xfffffffc, + .pre_write = ir_enable_prew, + },{ .name = "IR_DISABLE", .addr = A_IR_DISABLE, + .rsvd = 0xfffffffc, + .pre_write = ir_disable_prew, + },{ .name = "USB3", .addr = A_USB3, + } +}; + +static void usb2_regs_reset(DeviceState *dev) +{ + VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(dev); + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) { + register_reset(&s->regs_info[i]); + } + + ir_update_irq(s); +} + +static const MemoryRegionOps usb2_regs_ops = { + .read = register_read_memory, + .write = register_write_memory, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + +static void usb2_regs_init(Object *obj) +{ + VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + RegisterInfoArray *reg_array; + + memory_region_init(&s->iomem, obj, TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + USB2_REGS_R_MAX * 4); + reg_array = + register_init_block32(DEVICE(obj), usb2_regs_regs_info, + ARRAY_SIZE(usb2_regs_regs_info), + s->regs_info, s->regs, + &usb2_regs_ops, + XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG, + USB2_REGS_R_MAX * 4); + memory_region_add_subregion(&s->iomem, + 0x0, + ®_array->mem); + sysbus_init_mmio(sbd, &s->iomem); + sysbus_init_irq(sbd, &s->irq_ir); +} + +static const VMStateDescription vmstate_usb2_regs = { + .name = TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, VersalUsb2CtrlRegs, USB2_REGS_R_MAX), + VMSTATE_END_OF_LIST(), + } +}; + +static void usb2_regs_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->reset = usb2_regs_reset; + dc->vmsd = &vmstate_usb2_regs; +} + +static const TypeInfo usb2_regs_info = { + .name = TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(VersalUsb2CtrlRegs), + .class_init = usb2_regs_class_init, + .instance_init = usb2_regs_init, +}; + +static void usb2_regs_register_types(void) +{ + type_register_static(&usb2_regs_info); +} + +type_init(usb2_regs_register_types) diff --git a/include/hw/misc/xlnx-versal-usb2-ctrl-regs.h b/include/hw/misc/xlnx-versal-usb2-ctrl-regs.h new file mode 100644 index 0000000..975a717 --- /dev/null +++ b/include/hw/misc/xlnx-versal-usb2-ctrl-regs.h @@ -0,0 +1,45 @@ +/* + * QEMU model of the VersalUsb2CtrlRegs Register control/Status block for + * USB2.0 controller + * + * Copyright (c) 2020 Xilinx Inc. Vikram Garhwal + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef _XLNX_USB2_REGS_H_ +#define _XLNX_USB2_REGS_H_ + +#define TYPE_XILINX_VERSAL_USB2_CTRL_REGS "xlnx.versal-usb2-ctrl-regs" + +#define XILINX_VERSAL_USB2_CTRL_REGS(obj) \ + OBJECT_CHECK(VersalUsb2CtrlRegs, (obj), TYPE_XILINX_VERSAL_USB2_CTRL_REGS) + +#define USB2_REGS_R_MAX ((0x78 / 4) + 1) + +typedef struct VersalUsb2CtrlRegs { + SysBusDevice parent_obj; + MemoryRegion iomem; + qemu_irq irq_ir; + + uint32_t regs[USB2_REGS_R_MAX]; + RegisterInfo regs_info[USB2_REGS_R_MAX]; +} VersalUsb2CtrlRegs; + +#endif