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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Hervé Poussineau" <hpoussin@reactos.org>,
	"Aleksandar Rikalo" <arikalo@gmail.com>,
	"Jiaxun Yang" <jiaxun.yang@flygoat.com>,
	"Bernhard Beschow" <shentey@gmail.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Huacai Chen" <chenhuacai@kernel.org>,
	"Aurelien Jarno" <aurelien@aurel32.net>,
	"Richard Henderson" <richard.henderson@linaro.org>
Subject: [PATCH 2/6] target/mips: Create clock *after* accelerator vCPU is realized
Date: Tue, 21 Jan 2025 17:18:13 +0100	[thread overview]
Message-ID: <20250121161817.33654-3-philmd@linaro.org> (raw)
In-Reply-To: <20250121161817.33654-1-philmd@linaro.org>

Architecture specific hardware doesn't have a particular dependency
on the accelerator vCPU (created with cpu_exec_realizefn), and can
be initialized *after* the vCPU is realized.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/mips/cpu.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 0b3ac4e60a3..028a3c91afb 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -462,20 +462,6 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
     MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(dev);
     Error *local_err = NULL;
 
-    if (!clock_get(cpu->clock)) {
-#ifndef CONFIG_USER_ONLY
-        if (!qtest_enabled()) {
-            g_autofree char *cpu_freq_str = freq_to_str(CPU_FREQ_HZ_DEFAULT);
-
-            warn_report("CPU input clock is not connected to any output clock, "
-                        "using default frequency of %s.", cpu_freq_str);
-        }
-#endif
-        /* Initialize the frequency in case the clock remains unconnected. */
-        clock_set_hz(cpu->clock, CPU_FREQ_HZ_DEFAULT);
-    }
-    mips_cp0_period_set(cpu);
-
     cpu_exec_realizefn(cs, &local_err);
     if (local_err != NULL) {
         error_propagate(errp, local_err);
@@ -490,6 +476,20 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
     fpu_init(env, env->cpu_model);
     mvp_init(env);
 
+    if (!clock_get(cpu->clock)) {
+#ifndef CONFIG_USER_ONLY
+        if (!qtest_enabled()) {
+            g_autofree char *cpu_freq_str = freq_to_str(CPU_FREQ_HZ_DEFAULT);
+
+            warn_report("CPU input clock is not connected to any output clock, "
+                        "using default frequency of %s.", cpu_freq_str);
+        }
+#endif
+        /* Initialize the frequency in case the clock remains unconnected. */
+        clock_set_hz(cpu->clock, CPU_FREQ_HZ_DEFAULT);
+    }
+    mips_cp0_period_set(cpu);
+
     cpu_reset(cs);
     qemu_init_vcpu(cs);
 
-- 
2.47.1



  parent reply	other threads:[~2025-01-21 16:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-21 16:18 [PATCH 0/6] target/mips: Convert legacy qemu_allocate_irqs() to qemu_init_irq() Philippe Mathieu-Daudé
2025-01-21 16:18 ` [PATCH 1/6] hw/pci-host/bonito: Expose output IRQ as QDev GPIO Philippe Mathieu-Daudé
2025-01-21 16:18 ` Philippe Mathieu-Daudé [this message]
2025-01-21 16:18 ` [PATCH 3/6] target/mips: Initialize CPU-specific timer/IRQs once in DeviceRealize Philippe Mathieu-Daudé
2025-01-21 23:07   ` Richard Henderson
2025-01-21 16:18 ` [PATCH 4/6] target/mips: Pass env to cpu_mips_clock_init() Philippe Mathieu-Daudé
2025-01-21 16:18 ` [PATCH 5/6] target/mips: Move CPU timer from hw/mips/ to target/mips/system/ Philippe Mathieu-Daudé
2025-01-21 23:08   ` Richard Henderson
2025-01-21 16:18 ` [PATCH 6/6] target/mips: Allocate CPU IRQs within CPUMIPSState Philippe Mathieu-Daudé
2025-01-21 16:20   ` Philippe Mathieu-Daudé
2025-01-21 23:12   ` Richard Henderson
2025-01-21 16:42 ` [PATCH 0/6] target/mips: Convert legacy qemu_allocate_irqs() to qemu_init_irq() Philippe Mathieu-Daudé

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