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Thu, 31 Aug 2023 11:25:18 -0500 From: Francisco Iglesias To: CC: , , , , , , , Subject: [PATCH v4 3/8] hw/misc/xlnx-versal-cfu: Introduce a model of Xilinx Versal CFU_FDRO Date: Thu, 31 Aug 2023 18:25:00 +0200 Message-ID: <20230831162505.30399-4-francisco.iglesias@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230831162505.30399-1-francisco.iglesias@amd.com> References: <20230831162505.30399-1-francisco.iglesias@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F4:EE_|CH3PR12MB9249:EE_ X-MS-Office365-Filtering-Correlation-Id: ffcd1c00-f7ba-4573-cbd8-08dbaa3edfc5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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envelope-from=francisco.iglesias@amd.com; helo=NAM11-BN8-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Introduce a model of Xilinx Versal's Configuration Frame Unit's data out port (CFU_FDRO). Signed-off-by: Francisco Iglesias Reviewed-by: Peter Maydell --- hw/misc/xlnx-versal-cfu.c | 96 +++++++++++++++++++++++++++++++ include/hw/misc/xlnx-versal-cfu.h | 12 ++++ 2 files changed, 108 insertions(+) diff --git a/hw/misc/xlnx-versal-cfu.c b/hw/misc/xlnx-versal-cfu.c index b2dc6ab211..255c1bf4b8 100644 --- a/hw/misc/xlnx-versal-cfu.c +++ b/hw/misc/xlnx-versal-cfu.c @@ -264,6 +264,25 @@ static void cfu_stream_write(void *opaque, hwaddr addr, uint64_t value, } } +static uint64_t cfu_fdro_read(void *opaque, hwaddr addr, unsigned size) +{ + XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(opaque); + uint64_t ret = 0; + + if (!fifo32_is_empty(&s->fdro_data)) { + ret = fifo32_pop(&s->fdro_data); + } + + return ret; +} + +static void cfu_fdro_write(void *opaque, hwaddr addr, uint64_t value, + unsigned size) +{ + qemu_log_mask(LOG_GUEST_ERROR, "%s: Unsupported write from addr=%" + HWADDR_PRIx "\n", __func__, addr); +} + static const MemoryRegionOps cfu_stream_ops = { .read = cfu_stream_read, .write = cfu_stream_write, @@ -274,6 +293,16 @@ static const MemoryRegionOps cfu_stream_ops = { }, }; +static const MemoryRegionOps cfu_fdro_ops = { + .read = cfu_fdro_read, + .write = cfu_fdro_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + static void cfu_apb_init(Object *obj) { XlnxVersalCFUAPB *s = XLNX_VERSAL_CFU_APB(obj); @@ -305,6 +334,39 @@ static void cfu_apb_init(Object *obj) sysbus_init_irq(sbd, &s->irq_cfu_imr); } +static void cfu_fdro_init(Object *obj) +{ + XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + + memory_region_init_io(&s->iomem_fdro, obj, &cfu_fdro_ops, s, + TYPE_XLNX_VERSAL_CFU_FDRO, KEYHOLE_STREAM_4K); + sysbus_init_mmio(sbd, &s->iomem_fdro); + fifo32_create(&s->fdro_data, 8 * KiB / sizeof(uint32_t)); +} + +static void cfu_fdro_reset_enter(Object *obj, ResetType type) +{ + XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(obj); + + fifo32_reset(&s->fdro_data); +} + +static void cfu_fdro_cfi_transfer_packet(XlnxCfiIf *cfi_if, XlnxCfiPacket *pkt) +{ + XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(cfi_if); + + if (fifo32_num_free(&s->fdro_data) >= ARRAY_SIZE(pkt->data)) { + for (int i = 0; i < ARRAY_SIZE(pkt->data); i++) { + fifo32_push(&s->fdro_data, pkt->data[i]); + } + } else { + /* It is a programming error to fill the fifo. */ + qemu_log_mask(LOG_GUEST_ERROR, + "CFU_FDRO: CFI data dropped due to full read fifo\n"); + } +} + static Property cfu_props[] = { DEFINE_PROP_LINK("cframe0", XlnxVersalCFUAPB, cfg.cframe[0], TYPE_XLNX_CFI_IF, XlnxCfiIf *), @@ -351,6 +413,16 @@ static const VMStateDescription vmstate_cfu_apb = { } }; +static const VMStateDescription vmstate_cfu_fdro = { + .name = TYPE_XLNX_VERSAL_CFU_FDRO, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_FIFO32(fdro_data, XlnxVersalCFUFDRO), + VMSTATE_END_OF_LIST(), + } +}; + static void cfu_apb_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -360,6 +432,17 @@ static void cfu_apb_class_init(ObjectClass *klass, void *data) device_class_set_props(dc, cfu_props); } +static void cfu_fdro_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ResettableClass *rc = RESETTABLE_CLASS(klass); + XlnxCfiIfClass *xcic = XLNX_CFI_IF_CLASS(klass); + + dc->vmsd = &vmstate_cfu_fdro; + xcic->cfi_transfer_packet = cfu_fdro_cfi_transfer_packet; + rc->phases.enter = cfu_fdro_reset_enter; +} + static const TypeInfo cfu_apb_info = { .name = TYPE_XLNX_VERSAL_CFU_APB, .parent = TYPE_SYS_BUS_DEVICE, @@ -372,9 +455,22 @@ static const TypeInfo cfu_apb_info = { } }; +static const TypeInfo cfu_fdro_info = { + .name = TYPE_XLNX_VERSAL_CFU_FDRO, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(XlnxVersalCFUFDRO), + .class_init = cfu_fdro_class_init, + .instance_init = cfu_fdro_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_XLNX_CFI_IF }, + { } + } +}; + static void cfu_apb_register_types(void) { type_register_static(&cfu_apb_info); + type_register_static(&cfu_fdro_info); } type_init(cfu_apb_register_types) diff --git a/include/hw/misc/xlnx-versal-cfu.h b/include/hw/misc/xlnx-versal-cfu.h index 62d10caf27..73e9a21af4 100644 --- a/include/hw/misc/xlnx-versal-cfu.h +++ b/include/hw/misc/xlnx-versal-cfu.h @@ -20,10 +20,14 @@ #include "hw/sysbus.h" #include "hw/register.h" #include "hw/misc/xlnx-cfi-if.h" +#include "qemu/fifo32.h" #define TYPE_XLNX_VERSAL_CFU_APB "xlnx,versal-cfu-apb" OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalCFUAPB, XLNX_VERSAL_CFU_APB) +#define TYPE_XLNX_VERSAL_CFU_FDRO "xlnx,versal-cfu-fdro" +OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalCFUFDRO, XLNX_VERSAL_CFU_FDRO) + REG32(CFU_ISR, 0x0) FIELD(CFU_ISR, USR_GTS_EVENT, 9, 1) FIELD(CFU_ISR, USR_GSR_EVENT, 8, 1) @@ -210,6 +214,14 @@ struct XlnxVersalCFUAPB { } cfg; }; + +struct XlnxVersalCFUFDRO { + SysBusDevice parent_obj; + MemoryRegion iomem_fdro; + + Fifo32 fdro_data; +}; + /** * This is a helper function for updating a CFI data write fifo, an array of 4 * uint32_t and 128 bits of data that are allowed to be written through 4