From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Jiaxun Yang" <jiaxun.yang@flygoat.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PULL 22/26] hw/mips/loongson3_virt: Emulate suspend function
Date: Wed, 8 May 2024 19:45:06 +0200 [thread overview]
Message-ID: <20240508174510.60470-23-philmd@linaro.org> (raw)
In-Reply-To: <20240508174510.60470-1-philmd@linaro.org>
From: Jiaxun Yang <jiaxun.yang@flygoat.com>
Suspend function is emulated as what hardware actually do.
Doorbell register fields are updates to include suspend value,
suspend vector is encoded in firmware blob and fw_cfg is updated
to include S3 bits as what x86 did.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-ID: <20240508-loongson3v-suspend-v1-1-186725524a39@flygoat.com>
[PMD: Use g_memdup2(), constify suspend array]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
hw/mips/loongson3_bootp.c | 1 +
hw/mips/loongson3_virt.c | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/hw/mips/loongson3_bootp.c b/hw/mips/loongson3_bootp.c
index f99af22932..03a10b63c1 100644
--- a/hw/mips/loongson3_bootp.c
+++ b/hw/mips/loongson3_bootp.c
@@ -148,4 +148,5 @@ void init_reset_system(struct efi_reset_system_t *reset)
reset->Shutdown = cpu_to_le64(0xffffffffbfc000a8);
reset->ResetCold = cpu_to_le64(0xffffffffbfc00080);
reset->ResetWarm = cpu_to_le64(0xffffffffbfc00080);
+ reset->DoSuspend = cpu_to_le64(0xffffffffbfc000d0);
}
diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c
index b10a611a98..440268a074 100644
--- a/hw/mips/loongson3_virt.c
+++ b/hw/mips/loongson3_virt.c
@@ -127,6 +127,9 @@ static void loongson3_pm_write(void *opaque, hwaddr addr,
case 0x00:
qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
return;
+ case 0x01:
+ qemu_system_suspend_request();
+ return;
case 0xff:
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
return;
@@ -250,6 +253,17 @@ static void init_boot_rom(void)
0x240D00FF, /* li t1, 0xff */
0xA18D0000, /* sb t1, (t0) */
0x1000FFFF, /* 1: b 1b */
+ 0x00000000, /* nop */
+ /* Suspend */
+ 0x3C0C9000, /* dli t0, 0x9000000010080010 */
+ 0x358C0000,
+ 0x000C6438,
+ 0x358C1008,
+ 0x000C6438,
+ 0x358C0010,
+ 0x240D0001, /* li t1, 0x01 */
+ 0xA18D0000, /* sb t1, (t0) */
+ 0x03e00008, /* jr ra */
0x00000000 /* nop */
};
@@ -265,6 +279,7 @@ static void fw_cfg_boot_set(void *opaque, const char *boot_device,
static void fw_conf_init(unsigned long ram_size)
{
+ static const uint8_t suspend[6] = {128, 0, 0, 129, 128, 128};
FWCfgState *fw_cfg;
hwaddr cfg_addr = virt_memmap[VIRT_FW_CFG].base;
@@ -274,6 +289,10 @@ static void fw_conf_init(unsigned long ram_size)
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
fw_cfg_add_i32(fw_cfg, FW_CFG_MACHINE_VERSION, 1);
fw_cfg_add_i64(fw_cfg, FW_CFG_CPU_FREQ, get_cpu_freq_hz());
+
+ fw_cfg_add_file(fw_cfg, "etc/system-states",
+ g_memdup2(suspend, sizeof(suspend)), sizeof(suspend));
+
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
}
@@ -553,6 +572,7 @@ static void mips_loongson3_virt_init(MachineState *machine)
machine->ram, 0, virt_memmap[VIRT_LOWMEM].size);
memory_region_init_io(iomem, NULL, &loongson3_pm_ops,
NULL, "loongson3_pm", virt_memmap[VIRT_PM].size);
+ qemu_register_wakeup_support();
memory_region_add_subregion(address_space_mem,
virt_memmap[VIRT_LOWMEM].base, ram);
--
2.41.0
next prev parent reply other threads:[~2024-05-08 17:47 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 17:44 [PULL 00/26] Misc HW patches for 2024-05-08 Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 01/26] block/qcow2-bitmap: Replace g_memdup() by g_memdup2() Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 02/26] target/ppc: " Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 03/26] hw/hppa/machine: " Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 04/26] hw/ppc/spapr_pci: " Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 05/26] hw/remote/vfio-user: Fix config space access byte order Philippe Mathieu-Daudé
2024-05-10 8:18 ` Michael Tokarev
2024-05-10 9:54 ` Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 06/26] system/physmem: Replace qemu_mutex_lock() calls with QEMU_LOCK_GUARD Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 07/26] system/physmem: Propagate AddressSpace to MapClient helpers Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 08/26] system/physmem: Per-AddressSpace bounce buffering Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 09/26] hw/i386/pc: Allow to compile without CONFIG_FDC_ISA Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 10/26] hw/i386/Kconfig: Allow to compile Q35 without FDC_ISA Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 11/26] hw/i386: Add the possibility to use i440fx and isapc without FDC Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 12/26] hw/i386/x86: Eliminate two if statements in x86_bios_rom_init() Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 13/26] hw/i386: Have x86_bios_rom_init() take X86MachineState rather than MachineState Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 14/26] hw/i386/x86: Don't leak "isa-bios" memory regions Philippe Mathieu-Daudé
2024-05-08 17:44 ` [PULL 15/26] hw/usb/dev-network: Remove unused struct 'rndis_config_parameter' Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 16/26] hw/gpio: Handle clock migration in STM32L4x5 gpios Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 17/26] hw/ppc: Deprecate 'ref405ep' machine and 405 CPUs Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 18/26] hw/loongarch: move memory map to boot.c Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 19/26] hw/loongarch/virt: Fix memory leak Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 20/26] hw/loongarch: Rename LOONGARCH_MACHINE with LOONGARCH_VIRT_MACHINE Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 21/26] hw/loongarch: Rename LoongArchMachineState with LoongArchVirtMachineState Philippe Mathieu-Daudé
2024-05-08 17:45 ` Philippe Mathieu-Daudé [this message]
2024-05-08 17:45 ` [PULL 23/26] hw/intc/loongarch_ipi: Remove pointless MAX_CPU check Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 24/26] hw/intc/loongarch_ipi: Rename as loongson_ipi Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 25/26] hw/intc/loongson_ipi: Implement IOCSR address space for MIPS Philippe Mathieu-Daudé
2024-05-08 17:45 ` [PULL 26/26] misc: Use QEMU header path relative to include/ directory Philippe Mathieu-Daudé
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