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author | Francisco Iglesias <francisco.iglesias@amd.com> | 2023-08-31 17:56:57 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2023-09-08 16:41:35 +0100 |
commit | 975dd496b5255c14ea46cf7d51a95703eeb1a2e3 (patch) | |
tree | 158db203eca5f81e3e53e5177500bc3de1e29005 | |
parent | ebfdc4942810905c44a59ee92f3d3809f40ee253 (diff) | |
download | qemu-975dd496b5255c14ea46cf7d51a95703eeb1a2e3.zip qemu-975dd496b5255c14ea46cf7d51a95703eeb1a2e3.tar.gz qemu-975dd496b5255c14ea46cf7d51a95703eeb1a2e3.tar.bz2 |
hw/misc/xlnx-versal-cfu: Introduce a model of Xilinx Versal's CFU_SFR
Introduce a model of Xilinx Versal's Configuration Frame Unit's Single
Frame Read port (CFU_SFR).
Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230831165701.2016397-5-francisco.iglesias@amd.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | hw/misc/xlnx-versal-cfu.c | 87 | ||||
-rw-r--r-- | include/hw/misc/xlnx-versal-cfu.h | 15 |
2 files changed, 102 insertions, 0 deletions
diff --git a/hw/misc/xlnx-versal-cfu.c b/hw/misc/xlnx-versal-cfu.c index 255c1bf..8e588ac 100644 --- a/hw/misc/xlnx-versal-cfu.c +++ b/hw/misc/xlnx-versal-cfu.c @@ -264,6 +264,31 @@ static void cfu_stream_write(void *opaque, hwaddr addr, uint64_t value, } } +static uint64_t cfu_sfr_read(void *opaque, hwaddr addr, unsigned size) +{ + qemu_log_mask(LOG_GUEST_ERROR, "%s: Unsupported read from addr=%" + HWADDR_PRIx "\n", __func__, addr); + return 0; +} + +static void cfu_sfr_write(void *opaque, hwaddr addr, uint64_t value, + unsigned size) +{ + XlnxVersalCFUSFR *s = XLNX_VERSAL_CFU_SFR(opaque); + uint32_t wfifo[WFIFO_SZ]; + + if (update_wfifo(addr, value, s->wfifo, wfifo)) { + uint8_t row_addr = extract32(wfifo[0], 23, 5); + uint32_t frame_addr = extract32(wfifo[0], 0, 23); + XlnxCfiPacket pkt = { .reg_addr = CFRAME_SFR, + .data[0] = frame_addr }; + + if (s->cfg.cfu) { + cfu_transfer_cfi_packet(s->cfg.cfu, row_addr, &pkt); + } + } +} + static uint64_t cfu_fdro_read(void *opaque, hwaddr addr, unsigned size) { XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(opaque); @@ -293,6 +318,16 @@ static const MemoryRegionOps cfu_stream_ops = { }, }; +static const MemoryRegionOps cfu_sfr_ops = { + .read = cfu_sfr_read, + .write = cfu_sfr_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + static const MemoryRegionOps cfu_fdro_ops = { .read = cfu_fdro_read, .write = cfu_fdro_write, @@ -334,6 +369,23 @@ static void cfu_apb_init(Object *obj) sysbus_init_irq(sbd, &s->irq_cfu_imr); } +static void cfu_sfr_init(Object *obj) +{ + XlnxVersalCFUSFR *s = XLNX_VERSAL_CFU_SFR(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + + memory_region_init_io(&s->iomem_sfr, obj, &cfu_sfr_ops, s, + TYPE_XLNX_VERSAL_CFU_SFR, KEYHOLE_STREAM_4K); + sysbus_init_mmio(sbd, &s->iomem_sfr); +} + +static void cfu_sfr_reset_enter(Object *obj, ResetType type) +{ + XlnxVersalCFUSFR *s = XLNX_VERSAL_CFU_SFR(obj); + + memset(s->wfifo, 0, WFIFO_SZ * sizeof(uint32_t)); +} + static void cfu_fdro_init(Object *obj) { XlnxVersalCFUFDRO *s = XLNX_VERSAL_CFU_FDRO(obj); @@ -401,6 +453,12 @@ static Property cfu_props[] = { DEFINE_PROP_END_OF_LIST(), }; +static Property cfu_sfr_props[] = { + DEFINE_PROP_LINK("cfu", XlnxVersalCFUSFR, cfg.cfu, + TYPE_XLNX_VERSAL_CFU_APB, XlnxVersalCFUAPB *), + DEFINE_PROP_END_OF_LIST(), +}; + static const VMStateDescription vmstate_cfu_apb = { .name = TYPE_XLNX_VERSAL_CFU_APB, .version_id = 1, @@ -423,6 +481,16 @@ static const VMStateDescription vmstate_cfu_fdro = { } }; +static const VMStateDescription vmstate_cfu_sfr = { + .name = TYPE_XLNX_VERSAL_CFU_SFR, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(wfifo, XlnxVersalCFUSFR, 4), + VMSTATE_END_OF_LIST(), + } +}; + static void cfu_apb_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -443,6 +511,16 @@ static void cfu_fdro_class_init(ObjectClass *klass, void *data) rc->phases.enter = cfu_fdro_reset_enter; } +static void cfu_sfr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ResettableClass *rc = RESETTABLE_CLASS(klass); + + device_class_set_props(dc, cfu_sfr_props); + dc->vmsd = &vmstate_cfu_sfr; + rc->phases.enter = cfu_sfr_reset_enter; +} + static const TypeInfo cfu_apb_info = { .name = TYPE_XLNX_VERSAL_CFU_APB, .parent = TYPE_SYS_BUS_DEVICE, @@ -467,10 +545,19 @@ static const TypeInfo cfu_fdro_info = { } }; +static const TypeInfo cfu_sfr_info = { + .name = TYPE_XLNX_VERSAL_CFU_SFR, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(XlnxVersalCFUSFR), + .class_init = cfu_sfr_class_init, + .instance_init = cfu_sfr_init, +}; + static void cfu_apb_register_types(void) { type_register_static(&cfu_apb_info); type_register_static(&cfu_fdro_info); + type_register_static(&cfu_sfr_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 73e9a21..86fb841 100644 --- a/include/hw/misc/xlnx-versal-cfu.h +++ b/include/hw/misc/xlnx-versal-cfu.h @@ -28,6 +28,9 @@ 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) +#define TYPE_XLNX_VERSAL_CFU_SFR "xlnx,versal-cfu-sfr" +OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalCFUSFR, XLNX_VERSAL_CFU_SFR) + REG32(CFU_ISR, 0x0) FIELD(CFU_ISR, USR_GTS_EVENT, 9, 1) FIELD(CFU_ISR, USR_GSR_EVENT, 8, 1) @@ -222,6 +225,18 @@ struct XlnxVersalCFUFDRO { Fifo32 fdro_data; }; +struct XlnxVersalCFUSFR { + SysBusDevice parent_obj; + MemoryRegion iomem_sfr; + + /* 128-bit wfifo. */ + uint32_t wfifo[WFIFO_SZ]; + + struct { + XlnxVersalCFUAPB *cfu; + } cfg; +}; + /** * 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 |