target/arm: Remove deprecated pxa CPU family

In 10.0 we deprecated the pxa CPU family (pxa250, pxa255, pxa260
pxa261, pxa262, pxa270-a0, pxa270-a1, pxa270, pxa270-b0, pxa270-b1,
pxa270-c0, pxa270-c5).  Now we have released 10.1 we can remove them.

This commit removes only the top level CPU definitions and updates
the documentation. Removing the CPUs means that there is now a lot
of dead iwMMXt code, which we will delete in subsequent commits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250828140422.3271703-2-peter.maydell@linaro.org

3 files changed, 14 insertions, 184 deletions

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index b2420732e1..f031414769 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -236,27 +236,6 @@ Keeping 32-bit host support alive is a substantial burden for the
 QEMU project.  Thus QEMU will in future drop the support for all
 32-bit host systems.
 
-linux-user mode CPUs
---------------------
-
-iwMMXt emulation and the ``pxa`` CPUs (since 10.0)
-''''''''''''''''''''''''''''''''''''''''''''''''''
-
-The ``pxa`` CPU family (``pxa250``, ``pxa255``, ``pxa260``,
-``pxa261``, ``pxa262``, ``pxa270-a0``, ``pxa270-a1``, ``pxa270``,
-``pxa270-b0``, ``pxa270-b1``, ``pxa270-c0``, ``pxa270-c5``) are no
-longer used in system emulation, because all the machine types which
-used these CPUs were removed in the QEMU 9.2 release. These CPUs can
-now only be used in linux-user mode, and to do that you would have to
-explicitly select one of these CPUs with the ``-cpu`` command line
-option or the ``QEMU_CPU`` environment variable.
-
-We don't believe that anybody is using the iwMMXt emulation, and we do
-not have any tests to validate it or any real hardware or similar
-known-good implementation to test against. GCC is in the process of
-dropping their support for iwMMXt codegen. These CPU types are
-therefore deprecated in QEMU, and will be removed in a future release.
-
 System emulator CPUs
 --------------------
 
diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst
index fff781d6b7..65fd564d22 100644
--- a/docs/about/removed-features.rst
+++ b/docs/about/removed-features.rst
@@ -1138,6 +1138,20 @@ reason the maintainers strongly suspected no one actually used it.
 QEMU Nios II architecture was orphan; Intel has EOL'ed the Nios II
 processor IP (see `Intel discontinuance notification`_).
 
+iwMMXt emulation and the ``pxa`` CPUs (removed in 10.2)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+The ``pxa`` CPU family (``pxa250``, ``pxa255``, ``pxa260``,
+``pxa261``, ``pxa262``, ``pxa270-a0``, ``pxa270-a1``, ``pxa270``,
+``pxa270-b0``, ``pxa270-b1``, ``pxa270-c0``, ``pxa270-c5``) were
+not available in system emulation, because all the machine types which
+used these CPUs were removed in the QEMU 9.2 release. We don't
+believe that anybody was using the iwMMXt emulation (which you
+would have to explicitly enable on the command line), and we did
+not have any tests to validate it or any real hardware or similar
+known-good implementation to test against. These CPUs have
+therefore been removed in linux-user mode as well.
+
 TCG introspection features
 --------------------------
 
diff --git a/target/arm/tcg/cpu32.c b/target/arm/tcg/cpu32.c
index a2a23eae0d..f0761410ad 100644
--- a/target/arm/tcg/cpu32.c
+++ b/target/arm/tcg/cpu32.c
@@ -807,144 +807,6 @@ static void sa1110_initfn(Object *obj)
     cpu->reset_sctlr = 0x00000070;
 }
 
-static void pxa250_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    cpu->midr = 0x69052100;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa255_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    cpu->midr = 0x69052d00;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa260_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    cpu->midr = 0x69052903;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa261_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    cpu->midr = 0x69052d05;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa262_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    cpu->midr = 0x69052d06;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270a0_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054110;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270a1_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054111;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270b0_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054112;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270b1_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054113;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270c0_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054114;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
-static void pxa270c5_initfn(Object *obj)
-{
-    ARMCPU *cpu = ARM_CPU(obj);
-
-    cpu->dtb_compatible = "marvell,xscale";
-    set_feature(&cpu->env, ARM_FEATURE_V5);
-    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
-    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
-    cpu->midr = 0x69054117;
-    cpu->ctr = 0xd172172;
-    cpu->reset_sctlr = 0x00000078;
-}
-
 #ifndef TARGET_AARCH64
 /*
  * -cpu max: a CPU with as many features enabled as our emulation supports.
@@ -1032,31 +894,6 @@ static const ARMCPUInfo arm_tcg_cpus[] = {
     { .name = "ti925t",      .initfn = ti925t_initfn },
     { .name = "sa1100",      .initfn = sa1100_initfn },
     { .name = "sa1110",      .initfn = sa1110_initfn },
-    { .name = "pxa250",      .initfn = pxa250_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa255",      .initfn = pxa255_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa260",      .initfn = pxa260_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa261",      .initfn = pxa261_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa262",      .initfn = pxa262_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    /* "pxa270" is an alias for "pxa270-a0" */
-    { .name = "pxa270",      .initfn = pxa270a0_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-a0",   .initfn = pxa270a0_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-a1",   .initfn = pxa270a1_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-b0",   .initfn = pxa270b0_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-b1",   .initfn = pxa270b1_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-c0",   .initfn = pxa270c0_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
-    { .name = "pxa270-c5",   .initfn = pxa270c5_initfn,
-      .deprecation_note = "iwMMXt CPUs are no longer supported", },
 #ifndef TARGET_AARCH64
     { .name = "max",         .initfn = arm_max_initfn },
 #endif