All these MemoryRegionOps read() and write() handlers are implemented expecting 32-bit accesses. Clarify that setting .impl.min/max_access_size fields. Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; Reviewed-by: Anton Johansson <anjo(a)rev.ng&gt; Message-Id: <20241105130431.22564-8-philmd(a)linaro.org&gt; --- hw/char/xilinx_uartlite.c | 4 ++++ hw/intc/xilinx_intc.c | 4 ++++ hw/net/xilinx_ethlite.c | 4 ++++ hw/timer/xilinx_timer.c | 4 ++++ 4 files changed, 16 insertions(+) diff --git a/hw/char/xilinx_uartlite.c b/hw/char/xilinx_uartlite.c index f325084f8b..3022b3d8ef 100644 --- a/hw/char/xilinx_uartlite.c +++ b/hw/char/xilinx_uartlite.c @@ -170,6 +170,10 @@ static const MemoryRegionOps uart_ops = { .read = uart_read, .write = uart_write, .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, .valid = { .min_access_size = 1, .max_access_size = 4 diff --git a/hw/intc/xilinx_intc.c b/hw/intc/xilinx_intc.c index 6e5012e66e..8fb6b4f1a5 100644 --- a/hw/intc/xilinx_intc.c +++ b/hw/intc/xilinx_intc.c @@ -144,6 +144,10 @@ static const MemoryRegionOps pic_ops = { .read = pic_read, .write = pic_write, .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, .valid = { .min_access_size = 4, .max_access_size = 4 diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c index bd81290808..e84b4cdd35 100644 --- a/hw/net/xilinx_ethlite.c +++ b/hw/net/xilinx_ethlite.c @@ -170,6 +170,10 @@ static const MemoryRegionOps eth_ops = { .read = eth_read, .write = eth_write, .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, .valid = { .min_access_size = 4, .max_access_size = 4 diff --git a/hw/timer/xilinx_timer.c b/hw/timer/xilinx_timer.c index 32a9df69e0..383fc8b3c8 100644 --- a/hw/timer/xilinx_timer.c +++ b/hw/timer/xilinx_timer.c @@ -193,6 +193,10 @@ static const MemoryRegionOps timer_ops = { .read = timer_read, .write = timer_write, .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, .valid = { .min_access_size = 4, .max_access_size = 4 -- 2.45.2

Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN. Add the "little-endian" property to select the device endianness, defaulting to little endian. Set the proper endianness for each machine using the device. Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; --- hw/intc/xilinx_intc.c | 61 +++++++++++++++++++----- hw/microblaze/petalogix_ml605_mmu.c | 1 + hw/microblaze/petalogix_s3adsp1800_mmu.c | 1 + 3 files changed, 50 insertions(+), 13 deletions(-) diff --git a/hw/intc/xilinx_intc.c b/hw/intc/xilinx_intc.c index 8fb6b4f1a5..4fffde961a 100644 --- a/hw/intc/xilinx_intc.c +++ b/hw/intc/xilinx_intc.c @@ -3,6 +3,9 @@ * * Copyright (c) 2009 Edgar E. Iglesias. * + * https://docs.amd.com/v/u/en-US/xps_intc + * DS572: LogiCORE IP XPS Interrupt Controller (v2.01a) + * * 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 @@ -49,6 +52,7 @@ struct XpsIntc { SysBusDevice parent_obj; + bool little_endian_model; MemoryRegion mmio; qemu_irq parent_irq; @@ -140,17 +144,39 @@ static void pic_write(void *opaque, hwaddr addr, update_irq(p); } -static const MemoryRegionOps pic_ops = { - .read = pic_read, - .write = pic_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, +static const MemoryRegionOps pic_ops[2] = { + { + .read = pic_read, + .write = pic_write, + .endianness = DEVICE_BIG_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, + .valid = { + /* + * All XPS INTC registers are accessed through the PLB interface. + * The base address for these registers is provided by the + * configuration parameter, C_BASEADDR. Each register is 32 bits + * although some bits may be unused and is accessed on a 4-byte + * boundary offset from the base address. + */ + .min_access_size = 4, + .max_access_size = 4, + }, }, - .valid = { - .min_access_size = 4, - .max_access_size = 4 + { + .read = pic_read, + .write = pic_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, } }; @@ -174,13 +200,21 @@ static void xilinx_intc_init(Object *obj) qdev_init_gpio_in(DEVICE(obj), irq_handler, 32); sysbus_init_irq(SYS_BUS_DEVICE(obj), &p->parent_irq); - - memory_region_init_io(&p->mmio, obj, &pic_ops, p, "xlnx.xps-intc", - R_MAX * 4); sysbus_init_mmio(SYS_BUS_DEVICE(obj), &p->mmio); } +static void xilinx_intc_realize(DeviceState *dev, Error **errp) +{ + XpsIntc *p = XILINX_INTC(dev); + + memory_region_init_io(&p->mmio, OBJECT(dev), + &pic_ops[p->little_endian_model], + p, "xlnx.xps-intc", + R_MAX * 4); +} + static Property xilinx_intc_properties[] = { + DEFINE_PROP_BOOL("little-endian", XpsIntc, little_endian_model, true), DEFINE_PROP_UINT32("kind-of-intr", XpsIntc, c_kind_of_intr, 0), DEFINE_PROP_END_OF_LIST(), }; @@ -189,6 +223,7 @@ static void xilinx_intc_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); + dc->realize = xilinx_intc_realize; device_class_set_props(dc, xilinx_intc_properties); } diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c index d2b2109065..64e8cadbee 100644 --- a/hw/microblaze/petalogix_ml605_mmu.c +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -111,6 +111,7 @@ petalogix_ml605_init(MachineState *machine) dev = qdev_new("xlnx.xps-intc"); + qdev_prop_set_bit(dev, "little-endian", true); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << TIMER_IRQ); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petalogix_s3adsp1800_mmu.c index 8110be8371..af949196d3 100644 --- a/hw/microblaze/petalogix_s3adsp1800_mmu.c +++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -95,6 +95,7 @@ petalogix_s3adsp1800_init(MachineState *machine) 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1); dev = qdev_new("xlnx.xps-intc"); + qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); -- 2.45.2

On 11/7/24 01:22, Philippe Mathieu-Daudé wrote: Surely only one of these. r~

Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN. Add the "little-endian" property to select the device endianness, defaulting to little endian. Set the proper endianness for each machine using the device. Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; --- hw/microblaze/petalogix_ml605_mmu.c | 1 + hw/microblaze/petalogix_s3adsp1800_mmu.c | 1 + hw/ppc/virtex_ml507.c | 1 + hw/timer/xilinx_timer.c | 46 +++++++++++++++++------- 4 files changed, 36 insertions(+), 13 deletions(-) diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c index 64e8cadbee..f4ec983fee 100644 --- a/hw/microblaze/petalogix_ml605_mmu.c +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -127,6 +127,7 @@ petalogix_ml605_init(MachineState *machine) /* 2 timers at irq 2 @ 100 Mhz. */ dev = qdev_new("xlnx.xps-timer"); + qdev_prop_set_bit(dev, "little-endian", true); qdev_prop_set_uint32(dev, "one-timer-only", 0); qdev_prop_set_uint32(dev, "clock-frequency", 100 * 1000000); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petalogix_s3adsp1800_mmu.c index f2e2dc2fd7..c0136d84c3 100644 --- a/hw/microblaze/petalogix_s3adsp1800_mmu.c +++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -114,6 +114,7 @@ petalogix_s3adsp1800_init(MachineState *machine) /* 2 timers at irq 2 @ 62 Mhz. */ dev = qdev_new("xlnx.xps-timer"); + qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); qdev_prop_set_uint32(dev, "one-timer-only", 0); qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c index f378e5c4a9..ea0b3a56fe 100644 --- a/hw/ppc/virtex_ml507.c +++ b/hw/ppc/virtex_ml507.c @@ -230,6 +230,7 @@ static void virtex_init(MachineState *machine) /* 2 timers at irq 2 @ 62 Mhz. */ dev = qdev_new("xlnx.xps-timer"); + qdev_prop_set_bit(dev, "little-endian", false); qdev_prop_set_uint32(dev, "one-timer-only", 0); qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); diff --git a/hw/timer/xilinx_timer.c b/hw/timer/xilinx_timer.c index c117bff225..d356807d7c 100644 --- a/hw/timer/xilinx_timer.c +++ b/hw/timer/xilinx_timer.c @@ -3,6 +3,9 @@ * * Copyright (c) 2009 Edgar E. Iglesias. * + * DS573: https://docs.amd.com/v/u/en-US/xps_timer + * LogiCORE IP XPS Timer/Counter (v1.02a) + * * 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 @@ -69,6 +72,7 @@ struct XpsTimerState { SysBusDevice parent_obj; + bool little_endian_model; MemoryRegion mmio; qemu_irq irq; uint8_t one_timer_only; @@ -189,17 +193,31 @@ timer_write(void *opaque, hwaddr addr, timer_update_irq(t); } -static const MemoryRegionOps timer_ops = { - .read = timer_read, - .write = timer_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, - }, - .valid = { - .min_access_size = 1, - .max_access_size = 4 +static const MemoryRegionOps timer_ops[2] = { + { + .read = timer_read, + .write = timer_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, + .valid = { + .min_access_size = 1, + .max_access_size = 4, + }, + }, { + .read = timer_read, + .write = timer_write, + .endianness = DEVICE_BIG_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, + .valid = { + .min_access_size = 1, + .max_access_size = 4, + }, } }; @@ -233,8 +251,9 @@ static void xilinx_timer_realize(DeviceState *dev, Error **errp) ptimer_transaction_commit(xt->ptimer); } - memory_region_init_io(&t->mmio, OBJECT(t), &timer_ops, t, "xlnx.xps-timer", - R_MAX * 4 * num_timers(t)); + memory_region_init_io(&t->mmio, OBJECT(t), + &timer_ops[t->little_endian_model], t, + "xlnx.xps-timer", R_MAX * 4 * num_timers(t)); sysbus_init_mmio(SYS_BUS_DEVICE(dev), &t->mmio); } @@ -247,6 +266,7 @@ static void xilinx_timer_init(Object *obj) } static Property xilinx_timer_properties[] = { + DEFINE_PROP_BOOL("little-endian", XpsTimerState, little_endian_model, true), DEFINE_PROP_UINT32("clock-frequency", XpsTimerState, freq_hz, 62 * 1000000), DEFINE_PROP_UINT8("one-timer-only", XpsTimerState, one_timer_only, 0), DEFINE_PROP_END_OF_LIST(), -- 2.45.2

Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN. Add the "little-endian" property to select the device endianness, defaulting to little endian. Set the proper endianness on the single machine using the device. Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; --- hw/arm/xlnx-zynqmp.c | 4 ++++ hw/ssi/xilinx_spi.c | 29 +++++++++++++++++++++-------- 2 files changed, 25 insertions(+), 8 deletions(-) diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c index ab2d50e31b..e735dbdf82 100644 --- a/hw/arm/xlnx-zynqmp.c +++ b/hw/arm/xlnx-zynqmp.c @@ -714,6 +714,10 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) { gchar *bus_name; + if (!object_property_set_bool(OBJECT(&s->spi[i])), "little-endian", + true, errp)) { + return; + } if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) { return; } diff --git a/hw/ssi/xilinx_spi.c b/hw/ssi/xilinx_spi.c index 7f1e1808c5..2a0c9bca05 100644 --- a/hw/ssi/xilinx_spi.c +++ b/hw/ssi/xilinx_spi.c @@ -83,6 +83,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(XilinxSPI, XILINX_SPI) struct XilinxSPI { SysBusDevice parent_obj; + bool little_endian_model; MemoryRegion mmio; qemu_irq irq; @@ -313,13 +314,23 @@ done: xlx_spi_update_irq(s); } -static const MemoryRegionOps spi_ops = { - .read = spi_read, - .write = spi_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { - .min_access_size = 4, - .max_access_size = 4 +static const MemoryRegionOps spi_ops[2] = { + { + .read = spi_read, + .write = spi_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, + }, { + .read = spi_read, + .write = spi_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, } }; @@ -339,7 +350,8 @@ static void xilinx_spi_realize(DeviceState *dev, Error **errp) sysbus_init_irq(sbd, &s->cs_lines[i]); } - memory_region_init_io(&s->mmio, OBJECT(s), &spi_ops, s, + memory_region_init_io(&s->mmio, OBJECT(s), + &spi_ops[s->little_endian_model], s, "xilinx-spi", R_MAX * 4); sysbus_init_mmio(sbd, &s->mmio); @@ -362,6 +374,7 @@ static const VMStateDescription vmstate_xilinx_spi = { }; static Property xilinx_spi_properties[] = { + DEFINE_PROP_BOOL("little-endian", XilinxSPI, little_endian_model, true), DEFINE_PROP_UINT8("num-ss-bits", XilinxSPI, num_cs, 1), DEFINE_PROP_END_OF_LIST(), }; -- 2.45.2

On 7/11/24 11:01, Richard Henderson wrote: Yeah I also noticed that, but this is the pattern this file uses, so I'd rather clean it up in a separate patch. Thanks!

Extract the implicit MO_TE definition in order to replace it by runtime variable in the next commit. Mechanical change using: $ for n in UW UL UQ UO SW SL SQ; do \ sed -i -e "s/MO_TE$n/MO_TE | MO_$n/" \ $(git grep -l MO_TE$n target/microblaze); \ done Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; Reviewed-by: Richard Henderson <richard.henderson(a)linaro.org&gt; Reviewed-by: Alistair Francis <alistair.francis(a)wdc.com&gt; --- target/microblaze/translate.c | 36 +++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 4beaf69e76..4c25b1e438 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -779,13 +779,13 @@ static bool trans_lbui(DisasContext *dc, arg_typeb *arg) static bool trans_lhu(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUW, dc->mem_index, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, false); } static bool trans_lhur(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUW, dc->mem_index, true); + return do_load(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, true); } static bool trans_lhuea(DisasContext *dc, arg_typea *arg) @@ -797,26 +797,26 @@ static bool trans_lhuea(DisasContext *dc, arg_typea *arg) return true; #else TCGv addr = compute_ldst_addr_ea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUW, MMU_NOMMU_IDX, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UW, MMU_NOMMU_IDX, false); #endif } static bool trans_lhui(DisasContext *dc, arg_typeb *arg) { TCGv addr = compute_ldst_addr_typeb(dc, arg->ra, arg->imm); - return do_load(dc, arg->rd, addr, MO_TEUW, dc->mem_index, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, false); } static bool trans_lw(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUL, dc->mem_index, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, false); } static bool trans_lwr(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUL, dc->mem_index, true); + return do_load(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, true); } static bool trans_lwea(DisasContext *dc, arg_typea *arg) @@ -828,14 +828,14 @@ static bool trans_lwea(DisasContext *dc, arg_typea *arg) return true; #else TCGv addr = compute_ldst_addr_ea(dc, arg->ra, arg->rb); - return do_load(dc, arg->rd, addr, MO_TEUL, MMU_NOMMU_IDX, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UL, MMU_NOMMU_IDX, false); #endif } static bool trans_lwi(DisasContext *dc, arg_typeb *arg) { TCGv addr = compute_ldst_addr_typeb(dc, arg->ra, arg->imm); - return do_load(dc, arg->rd, addr, MO_TEUL, dc->mem_index, false); + return do_load(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, false); } static bool trans_lwx(DisasContext *dc, arg_typea *arg) @@ -845,7 +845,7 @@ static bool trans_lwx(DisasContext *dc, arg_typea *arg) /* lwx does not throw unaligned access errors, so force alignment */ tcg_gen_andi_tl(addr, addr, ~3); - tcg_gen_qemu_ld_i32(cpu_res_val, addr, dc->mem_index, MO_TEUL); + tcg_gen_qemu_ld_i32(cpu_res_val, addr, dc->mem_index, MO_TE | MO_UL); tcg_gen_mov_tl(cpu_res_addr, addr); if (arg->rd) { @@ -929,13 +929,13 @@ static bool trans_sbi(DisasContext *dc, arg_typeb *arg) static bool trans_sh(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUW, dc->mem_index, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, false); } static bool trans_shr(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUW, dc->mem_index, true); + return do_store(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, true); } static bool trans_shea(DisasContext *dc, arg_typea *arg) @@ -947,26 +947,26 @@ static bool trans_shea(DisasContext *dc, arg_typea *arg) return true; #else TCGv addr = compute_ldst_addr_ea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUW, MMU_NOMMU_IDX, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UW, MMU_NOMMU_IDX, false); #endif } static bool trans_shi(DisasContext *dc, arg_typeb *arg) { TCGv addr = compute_ldst_addr_typeb(dc, arg->ra, arg->imm); - return do_store(dc, arg->rd, addr, MO_TEUW, dc->mem_index, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UW, dc->mem_index, false); } static bool trans_sw(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUL, dc->mem_index, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, false); } static bool trans_swr(DisasContext *dc, arg_typea *arg) { TCGv addr = compute_ldst_addr_typea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUL, dc->mem_index, true); + return do_store(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, true); } static bool trans_swea(DisasContext *dc, arg_typea *arg) @@ -978,14 +978,14 @@ static bool trans_swea(DisasContext *dc, arg_typea *arg) return true; #else TCGv addr = compute_ldst_addr_ea(dc, arg->ra, arg->rb); - return do_store(dc, arg->rd, addr, MO_TEUL, MMU_NOMMU_IDX, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UL, MMU_NOMMU_IDX, false); #endif } static bool trans_swi(DisasContext *dc, arg_typeb *arg) { TCGv addr = compute_ldst_addr_typeb(dc, arg->ra, arg->imm); - return do_store(dc, arg->rd, addr, MO_TEUL, dc->mem_index, false); + return do_store(dc, arg->rd, addr, MO_TE | MO_UL, dc->mem_index, false); } static bool trans_swx(DisasContext *dc, arg_typea *arg) @@ -1014,7 +1014,7 @@ static bool trans_swx(DisasContext *dc, arg_typea *arg) tcg_gen_atomic_cmpxchg_i32(tval, cpu_res_addr, cpu_res_val, reg_for_write(dc, arg->rd), - dc->mem_index, MO_TEUL); + dc->mem_index, MO_TE | MO_UL); tcg_gen_brcond_i32(TCG_COND_NE, cpu_res_val, tval, swx_fail); -- 2.45.2

mo_endian() returns the target endianness, currently static. Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; Reviewed-by: Richard Henderson <richard.henderson(a)linaro.org&gt; --- target/microblaze/translate.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 86f3c19618..0b466db694 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -707,12 +707,17 @@ static void record_unaligned_ess(DisasContext *dc, int rd, } #endif +static inline MemOp mo_endian(DisasContext *dc) +{ + return MO_TE; +} + static bool do_load(DisasContext *dc, int rd, TCGv addr, MemOp mop, int mem_index, bool rev) { MemOp size = mop & MO_SIZE; - mop |= MO_TE; + mop |= mo_endian(dc); /* * When doing reverse accesses we need to do two things. @@ -847,7 +852,8 @@ static bool trans_lwx(DisasContext *dc, arg_typea *arg) /* lwx does not throw unaligned access errors, so force alignment */ tcg_gen_andi_tl(addr, addr, ~3); - tcg_gen_qemu_ld_i32(cpu_res_val, addr, dc->mem_index, MO_TE | MO_UL); + tcg_gen_qemu_ld_i32(cpu_res_val, addr, dc->mem_index, + mo_endian(dc) | MO_UL); tcg_gen_mov_tl(cpu_res_addr, addr); if (arg->rd) { @@ -864,7 +870,7 @@ static bool do_store(DisasContext *dc, int rd, TCGv addr, MemOp mop, { MemOp size = mop & MO_SIZE; - mop |= MO_TE; + mop |= mo_endian(dc); /* * When doing reverse accesses we need to do two things. @@ -1018,7 +1024,7 @@ static bool trans_swx(DisasContext *dc, arg_typea *arg) tcg_gen_atomic_cmpxchg_i32(tval, cpu_res_addr, cpu_res_val, reg_for_write(dc, arg->rd), - dc->mem_index, MO_TE | MO_UL); + dc->mem_index, mo_endian(dc) | MO_UL); tcg_gen_brcond_i32(TCG_COND_NE, cpu_res_val, tval, swx_fail); -- 2.45.2

Introduce an abstract machine parent class which defines the 'little_endian' property. Duplicate the current machine, which endian is tied to the binary endianness, to one big endian and a little endian machine; updating the machine description. Keep the current default machine for each binary. 'petalogix-s3adsp1800' machine is aliased as: - 'petalogix-s3adsp1800-be' on big-endian binary, - 'petalogix-s3adsp1800-le' on little-endian one. Reviewed-by: Richard Henderson <richard.henderson(a)linaro.org&gt; Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; --- hw/microblaze/petalogix_s3adsp1800_mmu.c | 62 +++++++++++++++++++----- 1 file changed, 51 insertions(+), 11 deletions(-) diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petalogix_s3adsp1800_mmu.c index bd8b85fa54..533a833b41 100644 --- a/hw/microblaze/petalogix_s3adsp1800_mmu.c +++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -55,8 +55,17 @@ #define ETHLITE_IRQ 1 #define UARTLITE_IRQ 3 +typedef struct PetalogixS3adsp1800MachineClass { + MachineClass parent_obj; + + bool little_endian; +} PetalogixS3adsp1800MachineClass; + #define TYPE_PETALOGIX_S3ADSP1800_MACHINE \ - MACHINE_TYPE_NAME("petalogix-s3adsp1800") + MACHINE_TYPE_NAME("petalogix-s3adsp1800-common") +DECLARE_CLASS_CHECKERS(PetalogixS3adsp1800MachineClass, + PETALOGIX_S3ADSP1800_MACHINE, + TYPE_PETALOGIX_S3ADSP1800_MACHINE) static void petalogix_s3adsp1800_init(MachineState *machine) @@ -71,11 +80,13 @@ petalogix_s3adsp1800_init(MachineState *machine) MemoryRegion *phys_ram = g_new(MemoryRegion, 1); qemu_irq irq[32]; MemoryRegion *sysmem = get_system_memory(); + PetalogixS3adsp1800MachineClass *pmc; + pmc = PETALOGIX_S3ADSP1800_MACHINE_GET_CLASS(machine); cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU)); object_property_set_str(OBJECT(cpu), "version", "7.10.d", &error_abort); object_property_set_bool(OBJECT(cpu), "little-endian", - !TARGET_BIG_ENDIAN, &error_abort); + pmc->little_endian, &error_abort); qdev_realize(DEVICE(cpu), NULL, &error_abort); /* Attach emulated BRAM through the LMB. */ @@ -95,7 +106,7 @@ petalogix_s3adsp1800_init(MachineState *machine) 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1); dev = qdev_new("xlnx.xps-intc"); - qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); + qdev_prop_set_bit(dev, "little-endian", pmc->little_endian); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); @@ -107,7 +118,7 @@ petalogix_s3adsp1800_init(MachineState *machine) } dev = qdev_new(TYPE_XILINX_UARTLITE); - qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); + qdev_prop_set_bit(dev, "little-endian", pmc->little_endian); qdev_prop_set_chr(dev, "chardev", serial_hd(0)); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, UARTLITE_BASEADDR); @@ -115,7 +126,7 @@ petalogix_s3adsp1800_init(MachineState *machine) /* 2 timers at irq 2 @ 62 Mhz. */ dev = qdev_new("xlnx.xps-timer"); - qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); + qdev_prop_set_bit(dev, "little-endian", pmc->little_endian); qdev_prop_set_uint32(dev, "one-timer-only", 0); qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); @@ -127,33 +138,62 @@ petalogix_s3adsp1800_init(MachineState *machine) qemu_configure_nic_device(dev, true, NULL); qdev_prop_set_uint32(dev, "tx-ping-pong", 0); qdev_prop_set_uint32(dev, "rx-ping-pong", 0); - qdev_prop_set_bit(dev, "little-endian-model", !TARGET_BIG_ENDIAN); + qdev_prop_set_bit(dev, "little-endian", pmc->little_endian); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]); create_unimplemented_device("xps_gpio", GPIO_BASEADDR, 0x10000); - microblaze_load_kernel(cpu, !TARGET_BIG_ENDIAN, ddr_base, ram_size, + microblaze_load_kernel(cpu, pmc->little_endian, ddr_base, ram_size, machine->initrd_filename, BINARY_DEVICE_TREE_FILE, NULL); } -static void petalogix_s3adsp1800_machine_class_init(ObjectClass *oc, void *data) +static void petalogix_s3adsp1800_machine_class_init(ObjectClass *oc, + bool little_endian) { MachineClass *mc = MACHINE_CLASS(oc); + PetalogixS3adsp1800MachineClass *pmc = PETALOGIX_S3ADSP1800_MACHINE_CLASS(oc); - mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800"; mc->init = petalogix_s3adsp1800_init; - mc->is_default = true; + pmc->little_endian = little_endian; + mc->desc = little_endian + ? "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800 (little endian)" + : "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800 (big endian)"; + if (little_endian == !TARGET_BIG_ENDIAN) { + mc->is_default = true; + mc->alias = "petalogix-s3adsp1800"; + } +} + +static void petalogix_s3adsp1800_machine_class_init_be(ObjectClass *oc, void *data) +{ + petalogix_s3adsp1800_machine_class_init(oc, false); +} + +static void petalogix_s3adsp1800_machine_class_init_le(ObjectClass *oc, void *data) +{ + petalogix_s3adsp1800_machine_class_init(oc, true); } static const TypeInfo petalogix_s3adsp1800_machine_types[] = { { .name = TYPE_PETALOGIX_S3ADSP1800_MACHINE, .parent = TYPE_MACHINE, - .class_init = petalogix_s3adsp1800_machine_class_init, + .abstract = true, + .class_size = sizeof(PetalogixS3adsp1800MachineClass), + }, + { + .name = MACHINE_TYPE_NAME("petalogix-s3adsp1800-be"), + .parent = TYPE_PETALOGIX_S3ADSP1800_MACHINE, + .class_init = petalogix_s3adsp1800_machine_class_init_be, + }, + { + .name = MACHINE_TYPE_NAME("petalogix-s3adsp1800-le"), + .parent = TYPE_PETALOGIX_S3ADSP1800_MACHINE, + .class_init = petalogix_s3adsp1800_machine_class_init_le, }, }; -- 2.45.2

Copy/paste the current tests, but call the opposite endianness machines, testing: - petalogix-s3adsp1800-le machine (little-endian CPU) on the qemu-system-microblaze binary (big-endian) - petalogix-s3adsp1800-be machine (big-endian CPU) on the qemu-system-microblazeel binary (little-endian). Signed-off-by: Philippe Mathieu-Daudé <philmd(a)linaro.org&gt; Reviewed-by: Richard Henderson <richard.henderson(a)linaro.org&gt; --- .../functional/test_microblaze_s3adsp1800.py | 21 +++++++++++++++++++ .../test_microblazeel_s3adsp1800.py | 19 +++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/tests/functional/test_microblaze_s3adsp1800.py b/tests/functional/test_microblaze_s3adsp1800.py index 2b2f782270..7f5e8b6024 100755 --- a/tests/functional/test_microblaze_s3adsp1800.py +++ b/tests/functional/test_microblaze_s3adsp1800.py @@ -36,5 +36,26 @@ def test_microblaze_s3adsp1800_be(self): # message, that's why we don't test for a later string here. This # needs some investigation by a microblaze wizard one day... + ASSET_IMAGE_LE = Asset( + ('http://www.qemu-advent-calendar.org/2023/download/day13.tar.gz'), + 'b9b3d43c5dd79db88ada495cc6e0d1f591153fe41355e925d791fbf44de50c22') + + def test_microblaze_s3adsp1800_le(self): + self.require_netdev('user') + self.set_machine('petalogix-s3adsp1800-le') + file_path = self.ASSET_IMAGE_LE.fetch() + archive_extract(file_path, self.workdir) + self.vm.set_console() + self.vm.add_args('-kernel', self.workdir + '/day13/xmaton.bin') + self.vm.add_args('-nic', 'user,tftp=' + self.workdir + '/day13/') + self.vm.launch() + wait_for_console_pattern(self, 'QEMU Advent Calendar 2023') + time.sleep(0.1) + exec_command(self, 'root') + time.sleep(0.1) + exec_command_and_wait_for_pattern(self, + 'tftp -g -r xmaton.png 10.0.2.2 ; md5sum xmaton.png', + '821cd3cab8efd16ad6ee5acc3642a8ea') + if __name__ == '__main__': QemuSystemTest.main() diff --git a/tests/functional/test_microblazeel_s3adsp1800.py b/tests/functional/test_microblazeel_s3adsp1800.py index 1aee5149fb..60543009ba 100755 --- a/tests/functional/test_microblazeel_s3adsp1800.py +++ b/tests/functional/test_microblazeel_s3adsp1800.py @@ -38,5 +38,24 @@ def test_microblazeel_s3adsp1800_le(self): 'tftp -g -r xmaton.png 10.0.2.2 ; md5sum xmaton.png', '821cd3cab8efd16ad6ee5acc3642a8ea') + ASSET_IMAGE_BE = Asset( + ('https://qemu-advcal.gitlab.io/qac-best-of-multiarch/download/' + 'day17.tar.xz'), + '3ba7439dfbea7af4876662c97f8e1f0cdad9231fc166e4861d17042489270057') + + def test_microblazeel_s3adsp1800_be(self): + self.set_machine('petalogix-s3adsp1800-be') + file_path = self.ASSET_IMAGE_BE.fetch() + archive_extract(file_path, self.workdir) + self.vm.set_console() + self.vm.add_args('-kernel', self.workdir + '/day17/ballerina.bin') + self.vm.launch() + wait_for_console_pattern(self, 'This architecture does not have ' + 'kernel memory protection') + # Note: + # The kernel sometimes gets stuck after the "This architecture ..." + # message, that's why we don't test for a later string here. This + # needs some investigation by a microblaze wizard one day... + if __name__ == '__main__': QemuSystemTest.main() -- 2.45.2