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target-arm queue:

Browse Source 
* hw/arm: Use TYPE_PL011 to create serial port
  * target/arm: Set ID_MMFR4.HPDS for aarch64_max_initfn
  * hw/arm/integratorcp: Map the audio codec controller
  * GICv2: Correctly implement the limited number of priority bits
  * target/arm: refactoring of VFP related feature checks and decode
  * xilinx_zynq: Fix USB port instantiation
  * acceptance tests for n800, n810, integratorcp
  * Implement v8.3-RCPC, v8.4-RCPC, v8.3-CCIDX
  * arm_gic_kvm: Don't assume kernel can provide a GICv2
    (provide better error message for user error)
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200228' into staging

target-arm queue:
 * hw/arm: Use TYPE_PL011 to create serial port
 * target/arm: Set ID_MMFR4.HPDS for aarch64_max_initfn
 * hw/arm/integratorcp: Map the audio codec controller
 * GICv2: Correctly implement the limited number of priority bits
 * target/arm: refactoring of VFP related feature checks and decode
 * xilinx_zynq: Fix USB port instantiation
 * acceptance tests for n800, n810, integratorcp
 * Implement v8.3-RCPC, v8.4-RCPC, v8.3-CCIDX
 * arm_gic_kvm: Don't assume kernel can provide a GICv2
   (provide better error message for user error)

# gpg: Signature made Fri 28 Feb 2020 16:38:04 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200228: (33 commits)
  hw/intc/arm_gic_kvm: Don't assume kernel can provide a GICv2
  target/arm: Implement ARMv8.3-CCIDX
  target/arm: Implement v8.4-RCPC
  target/arm: Implement v8.3-RCPC
  target/arm: Fix wrong use of FIELD_EX32 on ID_AA64DFR0
  tests/acceptance/integratorcp: Verify Tux is displayed on framebuffer
  tests/acceptance: Extract boot_integratorcp() from test_integratorcp()
  tests/acceptance: Add a test for the integratorcp arm machine
  tests/acceptance: Add a test for the N800 and N810 arm machines
  hw/usb/hcd-ehci-sysbus: Remove obsolete xlnx, ps7-usb class
  hw/arm/xilinx_zynq: Fix USB port instantiation
  target/arm: Split VMINMAXNM decode
  target/arm: Split VFM decode
  target/arm: Add formats for some vfp 2 and 3-register insns
  target/arm: Remove ARM_FEATURE_VFP*
  linux-user/arm: Replace ARM_FEATURE_VFP* tests for HWCAP
  target/arm: Move the vfp decodetree calls next to the base isa
  target/arm: Move VLLDM and VLSTM to vfp.decode
  target/arm: Remove ARM_FEATURE_VFP check from disas_vfp_insn
  target/arm: Replace ARM_FEATURE_VFP4 with isar_feature_aa32_simdfmac
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2020-02-28 16:39:27 +00:00
commit e0175b7163
34 changed files with 865 additions and 464 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -613,6 +613,7 @@ S: Maintained
F: hw/arm/integratorcp.c
F: hw/misc/arm_integrator_debug.c
F: include/hw/misc/arm_integrator_debug.h
F: tests/acceptance/machine_arm_integratorcp.py
MCIMX6UL EVK / i.MX6ul
M: Peter Maydell <peter.maydell@linaro.org>
@ -686,6 +687,7 @@ F: hw/rtc/twl92230.c
F: include/hw/display/blizzard.h
F: include/hw/input/tsc2xxx.h
F: include/hw/misc/cbus.h
F: tests/acceptance/machine_arm_n8x0.py
Palm
M: Andrzej Zaborowski <balrogg@gmail.com>

1
hw/arm/Kconfig
View File

@ -69,6 +69,7 @@ config INTEGRATOR
select INTEGRATOR_DEBUG
select PL011 # UART
select PL031 # RTC
select PL041 # audio
select PL050 # keyboard/mouse
select PL110 # pl111 LCD controller
select PL181 # display

1
hw/arm/integratorcp.c
View File

@ -642,6 +642,7 @@ static void integratorcp_init(MachineState *machine)
qdev_get_gpio_in_named(icp, ICP_GPIO_MMC_WPROT, 0));
qdev_connect_gpio_out(dev, 1,
qdev_get_gpio_in_named(icp, ICP_GPIO_MMC_CARDIN, 0));
sysbus_create_varargs("pl041", 0x1d000000, pic[25], NULL);
if (nd_table[0].used)
smc91c111_init(&nd_table[0], 0xc8000000, pic[27]);

3
hw/arm/sbsa-ref.c
View File

@ -39,6 +39,7 @@
#include "hw/pci-host/gpex.h"
#include "hw/qdev-properties.h"
#include "hw/usb.h"
#include "hw/char/pl011.h"
#include "net/net.h"
#define RAMLIMIT_GB 8192
@ -409,7 +410,7 @@ static void create_uart(const SBSAMachineState *sms, int uart,
{
hwaddr base = sbsa_ref_memmap[uart].base;
int irq = sbsa_ref_irqmap[uart];
DeviceState *dev = qdev_create(NULL, "pl011");
DeviceState *dev = qdev_create(NULL, TYPE_PL011);
SysBusDevice *s = SYS_BUS_DEVICE(dev);
qdev_prop_set_chr(dev, "chardev", chr);

3
hw/arm/virt.c
View File

@ -74,6 +74,7 @@
#include "hw/mem/nvdimm.h"
#include "hw/acpi/generic_event_device.h"
#include "hw/virtio/virtio-iommu.h"
#include "hw/char/pl011.h"
#define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \
static void virt_##major##_##minor##_class_init(ObjectClass *oc, \
@ -727,7 +728,7 @@ static void create_uart(const VirtMachineState *vms, int uart,
int irq = vms->irqmap[uart];
const char compat[] = "arm,pl011\0arm,primecell";
const char clocknames[] = "uartclk\0apb_pclk";
DeviceState *dev = qdev_create(NULL, "pl011");
DeviceState *dev = qdev_create(NULL, TYPE_PL011);
SysBusDevice *s = SYS_BUS_DEVICE(dev);
qdev_prop_set_chr(dev, "chardev", chr);

5
hw/arm/xilinx_zynq.c
View File

@ -29,6 +29,7 @@
#include "hw/loader.h"
#include "hw/misc/zynq-xadc.h"
#include "hw/ssi/ssi.h"
#include "hw/usb/chipidea.h"
#include "qemu/error-report.h"
#include "hw/sd/sdhci.h"
#include "hw/char/cadence_uart.h"
@ -225,8 +226,8 @@ static void zynq_init(MachineState *machine)
zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false);
zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true);
sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]);
sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]);
sysbus_create_simple(TYPE_CHIPIDEA, 0xE0002000, pic[53 - IRQ_OFFSET]);
sysbus_create_simple(TYPE_CHIPIDEA, 0xE0003000, pic[76 - IRQ_OFFSET]);
cadence_uart_create(0xE0000000, pic[59 - IRQ_OFFSET], serial_hd(0));
cadence_uart_create(0xE0001000, pic[82 - IRQ_OFFSET], serial_hd(1));

3
hw/arm/xlnx-versal.c
View File

@ -22,6 +22,7 @@
#include "hw/misc/unimp.h"
#include "hw/intc/arm_gicv3_common.h"
#include "hw/arm/xlnx-versal.h"
#include "hw/char/pl011.h"
#define XLNX_VERSAL_ACPU_TYPE ARM_CPU_TYPE_NAME("cortex-a72")
#define GEM_REVISION 0x40070106
@ -144,7 +145,7 @@ static void versal_create_uarts(Versal *s, qemu_irq *pic)
DeviceState *dev;
MemoryRegion *mr;
dev = qdev_create(NULL, "pl011");
dev = qdev_create(NULL, TYPE_PL011);
s->lpd.iou.uart[i] = SYS_BUS_DEVICE(dev);
qdev_prop_set_chr(dev, "chardev", serial_hd(i));
object_property_add_child(OBJECT(s), name, OBJECT(dev), &error_fatal);

4
hw/cpu/a9mpcore.c
View File

@ -16,6 +16,8 @@
#include "hw/qdev-properties.h"
#include "hw/core/cpu.h"
#define A9_GIC_NUM_PRIORITY_BITS 5
static void a9mp_priv_set_irq(void *opaque, int irq, int level)
{
A9MPPrivState *s = (A9MPPrivState *)opaque;
@ -68,6 +70,8 @@ static void a9mp_priv_realize(DeviceState *dev, Error **errp)
gicdev = DEVICE(&s->gic);
qdev_prop_set_uint32(gicdev, "num-cpu", s->num_cpu);
qdev_prop_set_uint32(gicdev, "num-irq", s->num_irq);
qdev_prop_set_uint32(gicdev, "num-priority-bits",
A9_GIC_NUM_PRIORITY_BITS);
/* Make the GIC's TZ support match the CPUs. We assume that
* either all the CPUs have TZ, or none do.

5
hw/cpu/arm11mpcore.c
View File

@ -15,6 +15,7 @@
#include "hw/irq.h"
#include "hw/qdev-properties.h"
#define ARM11MPCORE_NUM_GIC_PRIORITY_BITS 4
static void mpcore_priv_set_irq(void *opaque, int irq, int level)
{
@ -86,6 +87,10 @@ static void mpcore_priv_realize(DeviceState *dev, Error **errp)
qdev_prop_set_uint32(gicdev, "num-cpu", s->num_cpu);
qdev_prop_set_uint32(gicdev, "num-irq", s->num_irq);
qdev_prop_set_uint32(gicdev, "num-priority-bits",
ARM11MPCORE_NUM_GIC_PRIORITY_BITS);
object_property_set_bool(OBJECT(&s->gic), true, "realized", &err);
if (err != NULL) {
error_propagate(errp, err);

33
hw/intc/arm_gic.c
View File

@ -641,6 +641,23 @@ uint32_t gic_acknowledge_irq(GICState *s, int cpu, MemTxAttrs attrs)
return ret;
}
static uint32_t gic_fullprio_mask(GICState *s, int cpu)
{
/*
* Return a mask word which clears the unimplemented priority
* bits from a priority value for an interrupt. (Not to be
* confused with the group priority, whose mask depends on BPR.)
*/
int priBits;
if (gic_is_vcpu(cpu)) {
priBits = GIC_VIRT_MAX_GROUP_PRIO_BITS;
} else {
priBits = s->n_prio_bits;
}
return ~0U << (8 - priBits);
}
void gic_dist_set_priority(GICState *s, int cpu, int irq, uint8_t val,
MemTxAttrs attrs)
{
@ -651,6 +668,8 @@ void gic_dist_set_priority(GICState *s, int cpu, int irq, uint8_t val,
val = 0x80 | (val >> 1); /* Non-secure view */
}
val &= gic_fullprio_mask(s, cpu);
if (irq < GIC_INTERNAL) {
s->priority1[irq][cpu] = val;
} else {
@ -669,7 +688,7 @@ static uint32_t gic_dist_get_priority(GICState *s, int cpu, int irq,
}
prio = (prio << 1) & 0xff; /* Non-secure view */
}
return prio;
return prio & gic_fullprio_mask(s, cpu);
}
static void gic_set_priority_mask(GICState *s, int cpu, uint8_t pmask,
@ -684,7 +703,7 @@ static void gic_set_priority_mask(GICState *s, int cpu, uint8_t pmask,
return;
}
}
s->priority_mask[cpu] = pmask;
s->priority_mask[cpu] = pmask & gic_fullprio_mask(s, cpu);
}
static uint32_t gic_get_priority_mask(GICState *s, int cpu, MemTxAttrs attrs)
@ -2055,6 +2074,16 @@ static void arm_gic_realize(DeviceState *dev, Error **errp)
return;
}
if (s->n_prio_bits > GIC_MAX_PRIORITY_BITS ||
(s->virt_extn ? s->n_prio_bits < GIC_VIRT_MAX_GROUP_PRIO_BITS :
s->n_prio_bits < GIC_MIN_PRIORITY_BITS)) {
error_setg(errp, "num-priority-bits cannot be greater than %d"
" or less than %d", GIC_MAX_PRIORITY_BITS,
s->virt_extn ? GIC_VIRT_MAX_GROUP_PRIO_BITS :
GIC_MIN_PRIORITY_BITS);
return;
}
/* This creates distributor, main CPU interface (s->cpuiomem[0]) and if
* enabled, virtualization extensions related interfaces (main virtual
* interface (s->vifaceiomem[0]) and virtual CPU interface).

1
hw/intc/arm_gic_common.c
View File

@ -357,6 +357,7 @@ static Property arm_gic_common_properties[] = {
DEFINE_PROP_BOOL("has-security-extensions", GICState, security_extn, 0),
/* True if the GIC should implement the virtualization extensions */
DEFINE_PROP_BOOL("has-virtualization-extensions", GICState, virt_extn, 0),
DEFINE_PROP_UINT32("num-priority-bits", GICState, n_prio_bits, 8),
DEFINE_PROP_END_OF_LIST(),
};

9
hw/intc/arm_gic_kvm.c
View File

@ -551,7 +551,16 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp)
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL, true,
&error_abort);
}
} else if (kvm_check_extension(kvm_state, KVM_CAP_DEVICE_CTRL)) {
error_setg_errno(errp, -ret, "error creating in-kernel VGIC");
error_append_hint(errp,
"Perhaps the host CPU does not support GICv2?\n");
} else if (ret != -ENODEV && ret != -ENOTSUP) {
/*
* Very ancient kernel without KVM_CAP_DEVICE_CTRL: assume that
* ENODEV or ENOTSUP mean "can't create GICv2 with KVM_CREATE_DEVICE",
* and that we will get a GICv2 via KVM_CREATE_IRQCHIP.
*/
error_setg_errno(errp, -ret, "error creating in-kernel VGIC");
return;
}

20
hw/intc/armv7m_nvic.c
View File

@ -1262,12 +1262,12 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
case 0xd84: /* CSSELR */
return cpu->env.v7m.csselr[attrs.secure];
case 0xd88: /* CPACR */
if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
}
return cpu->env.v7m.cpacr[attrs.secure];
case 0xd8c: /* NSACR */
if (!attrs.secure || !arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (!attrs.secure || !cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
}
return cpu->env.v7m.nsacr;
@ -1417,7 +1417,7 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
}
return cpu->env.v7m.sfar;
case 0xf34: /* FPCCR */
if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
}
if (attrs.secure) {
@ -1444,12 +1444,12 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
return value;
}
case 0xf38: /* FPCAR */
if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
}
return cpu->env.v7m.fpcar[attrs.secure];
case 0xf3c: /* FPDSCR */
if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
}
return cpu->env.v7m.fpdscr[attrs.secure];
@ -1711,13 +1711,13 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
}
break;
case 0xd88: /* CPACR */
if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
/* We implement only the Floating Point extension's CP10/CP11 */
cpu->env.v7m.cpacr[attrs.secure] = value & (0xf << 20);
}
break;
case 0xd8c: /* NSACR */
if (attrs.secure && arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (attrs.secure && cpu_isar_feature(aa32_vfp_simd, cpu)) {
/* We implement only the Floating Point extension's CP10/CP11 */
cpu->env.v7m.nsacr = value & (3 << 10);
}
@ -1951,7 +1951,7 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
break;
}
case 0xf34: /* FPCCR */
if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
/* Not all bits here are banked. */
uint32_t fpccr_s;
@ -2005,13 +2005,13 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
}
break;
case 0xf38: /* FPCAR */
if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
value &= ~7;
cpu->env.v7m.fpcar[attrs.secure] = value;
}
break;
case 0xf3c: /* FPDSCR */
if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
value &= 0x07c00000;
cpu->env.v7m.fpdscr[attrs.secure] = value;
}

17
hw/usb/hcd-ehci-sysbus.c
View File

@ -115,22 +115,6 @@ static const TypeInfo ehci_platform_type_info = {
.class_init = ehci_platform_class_init,
};
static void ehci_xlnx_class_init(ObjectClass *oc, void *data)
{
SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
set_bit(DEVICE_CATEGORY_USB, dc->categories);
sec->capsbase = 0x100;
sec->opregbase = 0x140;
}
static const TypeInfo ehci_xlnx_type_info = {
.name = "xlnx,ps7-usb",
.parent = TYPE_SYS_BUS_EHCI,
.class_init = ehci_xlnx_class_init,
};
static void ehci_exynos4210_class_init(ObjectClass *oc, void *data)
{
SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
@ -267,7 +251,6 @@ static void ehci_sysbus_register_types(void)
{
type_register_static(&ehci_type_info);
type_register_static(&ehci_platform_type_info);
type_register_static(&ehci_xlnx_type_info);
type_register_static(&ehci_exynos4210_type_info);
type_register_static(&ehci_tegra2_type_info);
type_register_static(&ehci_ppc4xx_type_info);

2
include/hw/intc/arm_gic.h
View File

@ -68,6 +68,8 @@
/* Number of SGI target-list bits */
#define GIC_TARGETLIST_BITS 8
#define GIC_MAX_PRIORITY_BITS 8
#define GIC_MIN_PRIORITY_BITS 4
#define TYPE_ARM_GIC "arm_gic"
#define ARM_GIC(obj) \

1
include/hw/intc/arm_gic_common.h
View File

@ -96,6 +96,7 @@ typedef struct GICState {
uint16_t priority_mask[GIC_NCPU_VCPU];
uint16_t running_priority[GIC_NCPU_VCPU];
uint16_t current_pending[GIC_NCPU_VCPU];
uint32_t n_prio_bits;
/* If we present the GICv2 without security extensions to a guest,
* the guest can configure the GICC_CTLR to configure group 1 binary point

4
linux-user/arm/signal.c
View File

@ -346,7 +346,7 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
setup_sigcontext(&uc->tuc_mcontext, env, set->sig[0]);
/* Save coprocessor signal frame. */
regspace = uc->tuc_regspace;
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) {
regspace = setup_sigframe_v2_vfp(regspace, env);
}
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
@ -671,7 +671,7 @@ static int do_sigframe_return_v2(CPUARMState *env,
/* Restore coprocessor signal frame */
regspace = uc->tuc_regspace;
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) {
regspace = restore_sigframe_v2_vfp(env, regspace);
if (!regspace) {
return 1;

25
linux-user/elfload.c
View File

@ -468,22 +468,25 @@ static uint32_t get_elf_hwcap(void)
/* EDSP is in v5TE and above, but all our v5 CPUs are v5TE */
GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP);
GET_FEATURE(ARM_FEATURE_VFP, ARM_HWCAP_ARM_VFP);
GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT);
GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE);
GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON);
GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPv3);
GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS);
GET_FEATURE(ARM_FEATURE_VFP4, ARM_HWCAP_ARM_VFPv4);
GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE);
GET_FEATURE_ID(aa32_arm_div, ARM_HWCAP_ARM_IDIVA);
GET_FEATURE_ID(aa32_thumb_div, ARM_HWCAP_ARM_IDIVT);
/* All QEMU's VFPv3 CPUs have 32 registers, see VFP_DREG in translate.c.
* Note that the ARM_HWCAP_ARM_VFPv3D16 bit is always the inverse of
* ARM_HWCAP_ARM_VFPD32 (and so always clear for QEMU); it is unrelated
* to our VFP_FP16 feature bit.
*/
GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPD32);
GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE);
GET_FEATURE_ID(aa32_vfp, ARM_HWCAP_ARM_VFP);
if (cpu_isar_feature(aa32_fpsp_v3, cpu) ||
cpu_isar_feature(aa32_fpdp_v3, cpu)) {
hwcaps |= ARM_HWCAP_ARM_VFPv3;
if (cpu_isar_feature(aa32_simd_r32, cpu)) {
hwcaps |= ARM_HWCAP_ARM_VFPD32;
} else {
hwcaps |= ARM_HWCAP_ARM_VFPv3D16;
}
}
GET_FEATURE_ID(aa32_simdfmac, ARM_HWCAP_ARM_VFPv4);
return hwcaps;
}
@ -658,6 +661,8 @@ static uint32_t get_elf_hwcap(void)
GET_FEATURE_ID(aa64_sb, ARM_HWCAP_A64_SB);
GET_FEATURE_ID(aa64_condm_4, ARM_HWCAP_A64_FLAGM);
GET_FEATURE_ID(aa64_dcpop, ARM_HWCAP_A64_DCPOP);
GET_FEATURE_ID(aa64_rcpc_8_3, ARM_HWCAP_A64_LRCPC);
GET_FEATURE_ID(aa64_rcpc_8_4, ARM_HWCAP_A64_ILRCPC);
return hwcaps;
}

11
target/arm/arch_dump.c
View File

@ -363,9 +363,11 @@ int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
int cpuid, void *opaque)
{
struct arm_note note;
CPUARMState *env = &ARM_CPU(cs)->env;
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
DumpState *s = opaque;
int ret, i, fpvalid = !!arm_feature(env, ARM_FEATURE_VFP);
int ret, i;
bool fpvalid = cpu_isar_feature(aa32_vfp_simd, cpu);
arm_note_init(&note, s, "CORE", 5, NT_PRSTATUS, sizeof(note.prstatus));
@ -444,7 +446,6 @@ int cpu_get_dump_info(ArchDumpInfo *info,
ssize_t cpu_get_note_size(int class, int machine, int nr_cpus)
{
ARMCPU *cpu = ARM_CPU(first_cpu);
CPUARMState *env = &cpu->env;
size_t note_size;
if (class == ELFCLASS64) {
@ -452,12 +453,12 @@ ssize_t cpu_get_note_size(int class, int machine, int nr_cpus)
note_size += AARCH64_PRFPREG_NOTE_SIZE;
#ifdef TARGET_AARCH64
if (cpu_isar_feature(aa64_sve, cpu)) {
note_size += AARCH64_SVE_NOTE_SIZE(env);
note_size += AARCH64_SVE_NOTE_SIZE(&cpu->env);
}
#endif
} else {
note_size = ARM_PRSTATUS_NOTE_SIZE;
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
note_size += ARM_VFP_NOTE_SIZE;
}
}

44
target/arm/cpu.c
View File

@ -293,7 +293,7 @@ static void arm_cpu_reset(CPUState *s)
env->v7m.ccr[M_REG_S] |= R_V7M_CCR_UNALIGN_TRP_MASK;
}
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
env->v7m.fpccr[M_REG_NS] = R_V7M_FPCCR_ASPEN_MASK;
env->v7m.fpccr[M_REG_S] = R_V7M_FPCCR_ASPEN_MASK |
R_V7M_FPCCR_LSPEN_MASK | R_V7M_FPCCR_S_MASK;
@ -1011,7 +1011,7 @@ static void arm_cpu_dump_state(CPUState *cs, FILE *f, int flags)
int numvfpregs = 0;
if (cpu_isar_feature(aa32_simd_r32, cpu)) {
numvfpregs = 32;
} else if (arm_feature(env, ARM_FEATURE_VFP)) {
} else if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
numvfpregs = 16;
}
for (i = 0; i < numvfpregs; i++) {
@ -1208,13 +1208,6 @@ void arm_cpu_post_init(Object *obj)
if (arm_feature(&cpu->env, ARM_FEATURE_M)) {
set_feature(&cpu->env, ARM_FEATURE_PMSA);
}
/* Similarly for the VFP feature bits */
if (arm_feature(&cpu->env, ARM_FEATURE_VFP4)) {
set_feature(&cpu->env, ARM_FEATURE_VFP3);
}
if (arm_feature(&cpu->env, ARM_FEATURE_VFP3)) {
set_feature(&cpu->env, ARM_FEATURE_VFP);
}
if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) ||
arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) {
@ -1260,7 +1253,9 @@ void arm_cpu_post_init(Object *obj)
* KVM does not currently allow us to lie to the guest about its
* ID/feature registers, so the guest always sees what the host has.
*/
if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) {
if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)
? cpu_isar_feature(aa64_fp_simd, cpu)
: cpu_isar_feature(aa32_vfp, cpu)) {
cpu->has_vfp = true;
if (!kvm_enabled()) {
qdev_property_add_static(DEVICE(obj), &arm_cpu_has_vfp_property);
@ -1440,10 +1435,6 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
uint64_t t;
uint32_t u;
unset_feature(env, ARM_FEATURE_VFP);
unset_feature(env, ARM_FEATURE_VFP3);
unset_feature(env, ARM_FEATURE_VFP4);
t = cpu->isar.id_aa64isar1;
t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 0);
cpu->isar.id_aa64isar1 = t;
@ -1510,7 +1501,6 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
u = FIELD_DP32(u, MVFR1, SIMDINT, 0);
u = FIELD_DP32(u, MVFR1, SIMDSP, 0);
u = FIELD_DP32(u, MVFR1, SIMDHP, 0);
u = FIELD_DP32(u, MVFR1, SIMDFMAC, 0);
cpu->isar.mvfr1 = u;
u = cpu->isar.mvfr2;
@ -1533,6 +1523,11 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
u = cpu->isar.mvfr0;
u = FIELD_DP32(u, MVFR0, SIMDREG, 0);
cpu->isar.mvfr0 = u;
/* Despite the name, this field covers both VFP and Neon */
u = cpu->isar.mvfr1;
u = FIELD_DP32(u, MVFR1, SIMDFMAC, 0);
cpu->isar.mvfr1 = u;
}
if (arm_feature(env, ARM_FEATURE_M) && !cpu->has_dsp) {
@ -1636,8 +1631,9 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
* We rely on no XScale CPU having VFP so we can use the same bits in the
* TB flags field for VECSTRIDE and XSCALE_CPAR.
*/
assert(!(arm_feature(env, ARM_FEATURE_VFP) &&
arm_feature(env, ARM_FEATURE_XSCALE)));
assert(arm_feature(&cpu->env, ARM_FEATURE_AARCH64) ||
!cpu_isar_feature(aa32_vfp_simd, cpu) ||
!arm_feature(env, ARM_FEATURE_XSCALE));
if (arm_feature(env, ARM_FEATURE_V7) &&
!arm_feature(env, ARM_FEATURE_M) &&
@ -1858,7 +1854,6 @@ static void arm926_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm926";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
cpu->midr = 0x41069265;
@ -1899,7 +1894,6 @@ static void arm1026_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm1026";
set_feature(&cpu->env, ARM_FEATURE_V5);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_AUXCR);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
@ -1947,7 +1941,6 @@ static void arm1136_r2_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm1136";
set_feature(&cpu->env, ARM_FEATURE_V6);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
@ -1979,7 +1972,6 @@ static void arm1136_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm1136";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_V6);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
@ -2010,7 +2002,6 @@ static void arm1176_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm1176";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_VAPA);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
@ -2043,7 +2034,6 @@ static void arm11mpcore_initfn(Object *obj)
cpu->dtb_compatible = "arm,arm11mpcore";
set_feature(&cpu->env, ARM_FEATURE_V6K);
set_feature(&cpu->env, ARM_FEATURE_VFP);
set_feature(&cpu->env, ARM_FEATURE_VAPA);
set_feature(&cpu->env, ARM_FEATURE_MPIDR);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
@ -2109,7 +2099,6 @@ static void cortex_m4_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_M);
set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
cpu->midr = 0x410fc240; /* r0p0 */
cpu->pmsav7_dregion = 8;
cpu->isar.mvfr0 = 0x10110021;
@ -2140,7 +2129,6 @@ static void cortex_m7_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_M);
set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
cpu->midr = 0x411fc272; /* r1p2 */
cpu->pmsav7_dregion = 8;
cpu->isar.mvfr0 = 0x10110221;
@ -2172,7 +2160,6 @@ static void cortex_m33_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
set_feature(&cpu->env, ARM_FEATURE_M_SECURITY);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
cpu->midr = 0x410fd213; /* r0p3 */
cpu->pmsav7_dregion = 16;
cpu->sau_sregion = 8;
@ -2256,7 +2243,6 @@ static void cortex_r5f_initfn(Object *obj)
ARMCPU *cpu = ARM_CPU(obj);
cortex_r5_initfn(obj);
set_feature(&cpu->env, ARM_FEATURE_VFP3);
cpu->isar.mvfr0 = 0x10110221;
cpu->isar.mvfr1 = 0x00000011;
}
@ -2275,7 +2261,6 @@ static void cortex_a8_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a8";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP3);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
@ -2343,7 +2328,6 @@ static void cortex_a9_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a9";
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_VFP3);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_EL3);
@ -2408,7 +2392,6 @@ static void cortex_a7_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a7";
set_feature(&cpu->env, ARM_FEATURE_V7VE);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
@ -2454,7 +2437,6 @@ static void cortex_a15_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a15";
set_feature(&cpu->env, ARM_FEATURE_V7VE);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);

88
target/arm/cpu.h
View File

@ -904,7 +904,7 @@ struct ARMCPU {
/* The elements of this array are the CCSIDR values for each cache,
* in the order L1DCache, L1ICache, L2DCache, L2ICache, etc.
*/
uint32_t ccsidr[16];
uint64_t ccsidr[16];
uint64_t reset_cbar;
uint32_t reset_auxcr;
bool reset_hivecs;
@ -1880,7 +1880,6 @@ QEMU_BUILD_BUG_ON(ARRAY_SIZE(((ARMCPU *)0)->ccsidr) <= R_V7M_CSSELR_INDEX_MASK);
* mapping in linux-user/elfload.c:get_elf_hwcap().
*/
enum arm_features {
ARM_FEATURE_VFP,
ARM_FEATURE_AUXCR, /* ARM1026 Auxiliary control register. */
ARM_FEATURE_XSCALE, /* Intel XScale extensions. */
ARM_FEATURE_IWMMXT, /* Intel iwMMXt extension. */
@ -1889,7 +1888,6 @@ enum arm_features {
ARM_FEATURE_V7,
ARM_FEATURE_THUMB2,
ARM_FEATURE_PMSA, /* no MMU; may have Memory Protection Unit */
ARM_FEATURE_VFP3,
ARM_FEATURE_NEON,
ARM_FEATURE_M, /* Microcontroller profile. */
ARM_FEATURE_OMAPCP, /* OMAP specific CP15 ops handling. */
@ -1900,7 +1898,6 @@ enum arm_features {
ARM_FEATURE_V5,
ARM_FEATURE_STRONGARM,
ARM_FEATURE_VAPA, /* cp15 VA to PA lookups */
ARM_FEATURE_VFP4, /* VFPv4 (implies that NEON is v2) */
ARM_FEATURE_GENERIC_TIMER,
ARM_FEATURE_MVFR, /* Media and VFP Feature Registers 0 and 1 */
ARM_FEATURE_DUMMY_C15_REGS, /* RAZ/WI all of cp15 crn=15 */
@ -3450,6 +3447,15 @@ static inline bool isar_feature_aa32_fp16_arith(const ARMISARegisters *id)
return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, FP) == 1;
}
static inline bool isar_feature_aa32_vfp_simd(const ARMISARegisters *id)
{
/*
* Return true if either VFP or SIMD is implemented.
* In this case, a minimum of VFP w/ D0-D15.
*/
return FIELD_EX32(id->mvfr0, MVFR0, SIMDREG) > 0;
}
static inline bool isar_feature_aa32_simd_r32(const ARMISARegisters *id)
{
/* Return true if D16-D31 are implemented */
@ -3461,12 +3467,35 @@ static inline bool isar_feature_aa32_fpshvec(const ARMISARegisters *id)
return FIELD_EX32(id->mvfr0, MVFR0, FPSHVEC) > 0;
}
static inline bool isar_feature_aa32_fpdp(const ARMISARegisters *id)
static inline bool isar_feature_aa32_fpsp_v2(const ARMISARegisters *id)
{
/* Return true if CPU supports double precision floating point */
/* Return true if CPU supports single precision floating point, VFPv2 */
return FIELD_EX32(id->mvfr0, MVFR0, FPSP) > 0;
}
static inline bool isar_feature_aa32_fpsp_v3(const ARMISARegisters *id)
{
/* Return true if CPU supports single precision floating point, VFPv3 */
return FIELD_EX32(id->mvfr0, MVFR0, FPSP) >= 2;
}
static inline bool isar_feature_aa32_fpdp_v2(const ARMISARegisters *id)
{
/* Return true if CPU supports double precision floating point, VFPv2 */
return FIELD_EX32(id->mvfr0, MVFR0, FPDP) > 0;
}
static inline bool isar_feature_aa32_fpdp_v3(const ARMISARegisters *id)
{
/* Return true if CPU supports double precision floating point, VFPv3 */
return FIELD_EX32(id->mvfr0, MVFR0, FPDP) >= 2;
}
static inline bool isar_feature_aa32_vfp(const ARMISARegisters *id)
{
return isar_feature_aa32_fpsp_v2(id) || isar_feature_aa32_fpdp_v2(id);
}
/*
* We always set the FP and SIMD FP16 fields to indicate identical
* levels of support (assuming SIMD is implemented at all), so
@ -3482,6 +3511,18 @@ static inline bool isar_feature_aa32_fp16_dpconv(const ARMISARegisters *id)
return FIELD_EX32(id->mvfr1, MVFR1, FPHP) > 1;
}
/*
* Note that this ID register field covers both VFP and Neon FMAC,
* so should usually be tested in combination with some other
* check that confirms the presence of whichever of VFP or Neon is
* relevant, to avoid accidentally enabling a Neon feature on
* a VFP-no-Neon core or vice-versa.
*/
static inline bool isar_feature_aa32_simdfmac(const ARMISARegisters *id)
{
return FIELD_EX32(id->mvfr1, MVFR1, SIMDFMAC) != 0;
}
static inline bool isar_feature_aa32_vsel(const ARMISARegisters *id)
{
return FIELD_EX32(id->mvfr2, MVFR2, FPMISC) >= 1;
@ -3536,6 +3577,11 @@ static inline bool isar_feature_aa32_ac2(const ARMISARegisters *id)
return FIELD_EX32(id->id_mmfr4, ID_MMFR4, AC2) != 0;
}
static inline bool isar_feature_aa32_ccidx(const ARMISARegisters *id)
{
return FIELD_EX32(id->id_mmfr4, ID_MMFR4, CCIDX) != 0;
}
/*
* 64-bit feature tests via id registers.
*/
@ -3669,6 +3715,12 @@ static inline bool isar_feature_aa64_dcpodp(const ARMISARegisters *id)
return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, DPB) >= 2;
}
static inline bool isar_feature_aa64_fp_simd(const ARMISARegisters *id)
{
/* We always set the AdvSIMD and FP fields identically. */
return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, FP) != 0xf;
}
static inline bool isar_feature_aa64_fp16(const ARMISARegisters *id)
{
/* We always set the AdvSIMD and FP fields identically wrt FP16. */
@ -3723,8 +3775,23 @@ static inline bool isar_feature_aa64_pmu_8_1(const ARMISARegisters *id)
static inline bool isar_feature_aa64_pmu_8_4(const ARMISARegisters *id)
{
return FIELD_EX32(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) >= 5 &&
FIELD_EX32(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) != 0xf;
return FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) >= 5 &&
FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) != 0xf;
}
static inline bool isar_feature_aa64_rcpc_8_3(const ARMISARegisters *id)
{
return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, LRCPC) != 0;
}
static inline bool isar_feature_aa64_rcpc_8_4(const ARMISARegisters *id)
{
return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, LRCPC) >= 2;
}
static inline bool isar_feature_aa64_ccidx(const ARMISARegisters *id)
{
return FIELD_EX64(id->id_aa64mmfr2, ID_AA64MMFR2, CCIDX) != 0;
}
/*
@ -3750,6 +3817,11 @@ static inline bool isar_feature_any_pmu_8_4(const ARMISARegisters *id)
return isar_feature_aa64_pmu_8_4(id) || isar_feature_aa32_pmu_8_4(id);
}
static inline bool isar_feature_any_ccidx(const ARMISARegisters *id)
{
return isar_feature_aa64_ccidx(id) || isar_feature_aa32_ccidx(id);
}
/*
* Forward to the above feature tests given an ARMCPU pointer.
*/

5
target/arm/cpu64.c
View File

@ -102,7 +102,6 @@ static void aarch64_a57_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a57";
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
@ -156,7 +155,6 @@ static void aarch64_a53_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a53";
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
@ -210,7 +208,6 @@ static void aarch64_a72_initfn(Object *obj)
cpu->dtb_compatible = "arm,cortex-a72";
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
@ -657,6 +654,7 @@ static void aarch64_max_initfn(Object *obj)
t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2); /* ARMv8.4-RCPC */
cpu->isar.id_aa64isar1 = t;
t = cpu->isar.id_aa64pfr0;
@ -704,6 +702,7 @@ static void aarch64_max_initfn(Object *obj)
cpu->isar.id_mmfr3 = u;
u = cpu->isar.id_mmfr4;
u = FIELD_DP32(u, ID_MMFR4, HPDS, 1); /* AA32HPD */
u = FIELD_DP32(u, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
cpu->isar.id_mmfr4 = u;

23
target/arm/helper.c
View File

@ -894,7 +894,7 @@ static void cpacr_write(CPUARMState *env, const ARMCPRegInfo *ri,
* ASEDIS [31] and D32DIS [30] are both UNK/SBZP without VFP.
* TRCDIS [28] is RAZ/WI since we do not implement a trace macrocell.
*/
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) {
/* VFP coprocessor: cp10 & cp11 [23:20] */
mask |= (1 << 31) | (1 << 30) | (0xf << 20);
@ -6726,6 +6726,21 @@ static const ARMCPRegInfo predinv_reginfo[] = {
REGINFO_SENTINEL
};
static uint64_t ccsidr2_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
/* Read the high 32 bits of the current CCSIDR */
return extract64(ccsidr_read(env, ri), 32, 32);
}
static const ARMCPRegInfo ccsidr2_reginfo[] = {
{ .name = "CCSIDR2", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 2,
.access = PL1_R,
.accessfn = access_aa64_tid2,
.readfn = ccsidr2_read, .type = ARM_CP_NO_RAW },
REGINFO_SENTINEL
};
static CPAccessResult access_aa64_tid3(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
@ -7788,6 +7803,10 @@ void register_cp_regs_for_features(ARMCPU *cpu)
define_arm_cp_regs(cpu, predinv_reginfo);
}
if (cpu_isar_feature(any_ccidx, cpu)) {
define_arm_cp_regs(cpu, ccsidr2_reginfo);
}
#ifndef CONFIG_USER_ONLY
/*
* Register redirections and aliases must be done last,
@ -7814,7 +7833,7 @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu)
} else if (cpu_isar_feature(aa32_simd_r32, cpu)) {
gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
35, "arm-vfp3.xml", 0);
} else if (arm_feature(env, ARM_FEATURE_VFP)) {
} else if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
19, "arm-vfp.xml", 0);
}

5
target/arm/kvm32.c
View File

@ -147,7 +147,6 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
* bits, but a few must be tested.
*/
set_feature(&features, ARM_FEATURE_V7VE);
set_feature(&features, ARM_FEATURE_VFP3);
set_feature(&features, ARM_FEATURE_GENERIC_TIMER);
if (extract32(id_pfr0, 12, 4) == 1) {
@ -156,10 +155,6 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
if (extract32(ahcf->isar.mvfr1, 12, 4) == 1) {
set_feature(&features, ARM_FEATURE_NEON);
}
if (extract32(ahcf->isar.mvfr1, 28, 4) == 1) {
/* FMAC support implies VFPv4 */
set_feature(&features, ARM_FEATURE_VFP4);
}
ahcf->features = features;

1
target/arm/kvm64.c
View File

@ -649,7 +649,6 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
* feature bits.
*/
set_feature(&features, ARM_FEATURE_V8);
set_feature(&features, ARM_FEATURE_VFP4);
set_feature(&features, ARM_FEATURE_NEON);
set_feature(&features, ARM_FEATURE_AARCH64);
set_feature(&features, ARM_FEATURE_PMU);

11
target/arm/m_helper.c
View File

@ -738,7 +738,8 @@ static uint32_t v7m_integrity_sig(CPUARMState *env, uint32_t lr)
*/
uint32_t sig = 0xfefa125a;
if (!arm_feature(env, ARM_FEATURE_VFP) || (lr & R_V7M_EXCRET_FTYPE_MASK)) {
if (!cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))
|| (lr & R_V7M_EXCRET_FTYPE_MASK)) {
sig |= 1;
}
return sig;
@ -841,7 +842,7 @@ static void v7m_exception_taken(ARMCPU *cpu, uint32_t lr, bool dotailchain,
if (dotailchain) {
/* Sanitize LR FType and PREFIX bits */
if (!arm_feature(env, ARM_FEATURE_VFP)) {
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
lr |= R_V7M_EXCRET_FTYPE_MASK;
}
lr = deposit32(lr, 24, 8, 0xff);
@ -1373,7 +1374,7 @@ static void do_v7m_exception_exit(ARMCPU *cpu)
ftype = excret & R_V7M_EXCRET_FTYPE_MASK;
if (!arm_feature(env, ARM_FEATURE_VFP) && !ftype) {
if (!ftype && !cpu_isar_feature(aa32_vfp_simd, cpu)) {
qemu_log_mask(LOG_GUEST_ERROR, "M profile: zero FTYPE in exception "
"exit PC value 0x%" PRIx32 " is UNPREDICTABLE "
"if FPU not present\n",
@ -2450,7 +2451,7 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val)
* SFPA is RAZ/WI from NS. FPCA is RO if NSACR.CP10 == 0,
* RES0 if the FPU is not present, and is stored in the S bank
*/
if (arm_feature(env, ARM_FEATURE_VFP) &&
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env)) &&
extract32(env->v7m.nsacr, 10, 1)) {
env->v7m.control[M_REG_S] &= ~R_V7M_CONTROL_FPCA_MASK;
env->v7m.control[M_REG_S] |= val & R_V7M_CONTROL_FPCA_MASK;
@ -2565,7 +2566,7 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val)
env->v7m.control[env->v7m.secure] &= ~R_V7M_CONTROL_NPRIV_MASK;
env->v7m.control[env->v7m.secure] |= val & R_V7M_CONTROL_NPRIV_MASK;
}
if (arm_feature(env, ARM_FEATURE_VFP)) {
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) {
/*
* SFPA is RAZ/WI from NS or if no FPU.
* FPCA is RO if NSACR.CP10 == 0, RES0 if the FPU is not present.

5
target/arm/machine.c
View File

@ -9,9 +9,10 @@
static bool vfp_needed(void *opaque)
{
ARMCPU *cpu = opaque;
CPUARMState *env = &cpu->env;
return arm_feature(env, ARM_FEATURE_VFP);
return (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)
? cpu_isar_feature(aa64_fp_simd, cpu)
: cpu_isar_feature(aa32_vfp_simd, cpu));
}
static int get_fpscr(QEMUFile *f, void *opaque, size_t size,

114
target/arm/translate-a64.c
View File

@ -3142,6 +3142,8 @@ static void disas_ldst_atomic(DisasContext *s, uint32_t insn,
int rs = extract32(insn, 16, 5);
int rn = extract32(insn, 5, 5);
int o3_opc = extract32(insn, 12, 4);
bool r = extract32(insn, 22, 1);
bool a = extract32(insn, 23, 1);
TCGv_i64 tcg_rs, clean_addr;
AtomicThreeOpFn *fn;
@ -3177,6 +3179,13 @@ static void disas_ldst_atomic(DisasContext *s, uint32_t insn,
case 010: /* SWP */
fn = tcg_gen_atomic_xchg_i64;
break;
case 014: /* LDAPR, LDAPRH, LDAPRB */
if (!dc_isar_feature(aa64_rcpc_8_3, s) ||
rs != 31 || a != 1 || r != 0) {
unallocated_encoding(s);
return;
}
break;
default:
unallocated_encoding(s);
return;
@ -3186,6 +3195,21 @@ static void disas_ldst_atomic(DisasContext *s, uint32_t insn,
gen_check_sp_alignment(s);
}
clean_addr = clean_data_tbi(s, cpu_reg_sp(s, rn));
if (o3_opc == 014) {
/*
* LDAPR* are a special case because they are a simple load, not a
* fetch-and-do-something op.
* The architectural consistency requirements here are weaker than
* full load-acquire (we only need "load-acquire processor consistent"),
* but we choose to implement them as full LDAQ.
*/
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, false, false,
true, rt, disas_ldst_compute_iss_sf(size, false, 0), true);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
return;
}
tcg_rs = read_cpu_reg(s, rs, true);
if (o3_opc == 1) { /* LDCLR */
@ -3259,6 +3283,88 @@ static void disas_ldst_pac(DisasContext *s, uint32_t insn,
}
}
/*
* LDAPR/STLR (unscaled immediate)
*
* 31 30 24 22 21 12 10 5 0
* +------+-------------+-----+---+--------+-----+----+-----+
* | size | 0 1 1 0 0 1 | opc | 0 | imm9 | 0 0 | Rn | Rt |
* +------+-------------+-----+---+--------+-----+----+-----+
*
* Rt: source or destination register
* Rn: base register
* imm9: unscaled immediate offset
* opc: 00: STLUR*, 01/10/11: various LDAPUR*
* size: size of load/store
*/
static void disas_ldst_ldapr_stlr(DisasContext *s, uint32_t insn)
{
int rt = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int offset = sextract32(insn, 12, 9);
int opc = extract32(insn, 22, 2);
int size = extract32(insn, 30, 2);
TCGv_i64 clean_addr, dirty_addr;
bool is_store = false;
bool is_signed = false;
bool extend = false;
bool iss_sf;
if (!dc_isar_feature(aa64_rcpc_8_4, s)) {
unallocated_encoding(s);
return;
}
switch (opc) {
case 0: /* STLURB */
is_store = true;
break;
case 1: /* LDAPUR* */
break;
case 2: /* LDAPURS* 64-bit variant */
if (size == 3) {
unallocated_encoding(s);
return;
}
is_signed = true;
break;
case 3: /* LDAPURS* 32-bit variant */
if (size > 1) {
unallocated_encoding(s);
return;
}
is_signed = true;
extend = true; /* zero-extend 32->64 after signed load */
break;
default:
g_assert_not_reached();
}
iss_sf = disas_ldst_compute_iss_sf(size, is_signed, opc);
if (rn == 31) {
gen_check_sp_alignment(s);
}
dirty_addr = read_cpu_reg_sp(s, rn, 1);
tcg_gen_addi_i64(dirty_addr, dirty_addr, offset);
clean_addr = clean_data_tbi(s, dirty_addr);
if (is_store) {
/* Store-Release semantics */
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
do_gpr_st(s, cpu_reg(s, rt), clean_addr, size, true, rt, iss_sf, true);
} else {
/*
* Load-AcquirePC semantics; we implement as the slightly more
* restrictive Load-Acquire.
*/
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, is_signed, extend,
true, rt, iss_sf, true);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
}
}
/* Load/store register (all forms) */
static void disas_ldst_reg(DisasContext *s, uint32_t insn)
{
@ -3610,6 +3716,14 @@ static void disas_ldst(DisasContext *s, uint32_t insn)
case 0x0d: /* AdvSIMD load/store single structure */
disas_ldst_single_struct(s, insn);
break;
case 0x19: /* LDAPR/STLR (unscaled immediate) */
if (extract32(insn, 10, 2) != 0 ||
extract32(insn, 21, 1) != 0) {
unallocated_encoding(s);
break;
}
disas_ldst_ldapr_stlr(s, insn);
break;
default:
unallocated_encoding(s);
break;

448
target/arm/translate-vfp.inc.c
View File

@ -200,13 +200,13 @@ static bool trans_VSEL(DisasContext *s, arg_VSEL *a)
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) &&
((a->vm | a->vn | a->vd) & 0x10)) {
if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (dp && !dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) &&
((a->vm | a->vn | a->vd) & 0x10)) {
return false;
}
@ -322,79 +322,6 @@ static bool trans_VSEL(DisasContext *s, arg_VSEL *a)
return true;
}
static bool trans_VMINMAXNM(DisasContext *s, arg_VMINMAXNM *a)
{
uint32_t rd, rn, rm;
bool dp = a->dp;
bool vmin = a->op;
TCGv_ptr fpst;
if (!dc_isar_feature(aa32_vminmaxnm, s)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) &&
((a->vm | a->vn | a->vd) & 0x10)) {
return false;
}
if (dp && !dc_isar_feature(aa32_fpdp, s)) {
return false;
}
rd = a->vd;
rn = a->vn;
rm = a->vm;
if (!vfp_access_check(s)) {
return true;
}
fpst = get_fpstatus_ptr(0);
if (dp) {
TCGv_i64 frn, frm, dest;
frn = tcg_temp_new_i64();
frm = tcg_temp_new_i64();
dest = tcg_temp_new_i64();
neon_load_reg64(frn, rn);
neon_load_reg64(frm, rm);
if (vmin) {
gen_helper_vfp_minnumd(dest, frn, frm, fpst);
} else {
gen_helper_vfp_maxnumd(dest, frn, frm, fpst);
}
neon_store_reg64(dest, rd);
tcg_temp_free_i64(frn);
tcg_temp_free_i64(frm);
tcg_temp_free_i64(dest);
} else {
TCGv_i32 frn, frm, dest;
frn = tcg_temp_new_i32();
frm = tcg_temp_new_i32();
dest = tcg_temp_new_i32();
neon_load_reg32(frn, rn);
neon_load_reg32(frm, rm);
if (vmin) {
gen_helper_vfp_minnums(dest, frn, frm, fpst);
} else {
gen_helper_vfp_maxnums(dest, frn, frm, fpst);
}
neon_store_reg32(dest, rd);
tcg_temp_free_i32(frn);
tcg_temp_free_i32(frm);
tcg_temp_free_i32(dest);
}
tcg_temp_free_ptr(fpst);
return true;
}
/*
* Table for converting the most common AArch32 encoding of
* rounding mode to arm_fprounding order (which matches the
@ -419,13 +346,13 @@ static bool trans_VRINT(DisasContext *s, arg_VRINT *a)
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) &&
((a->vm | a->vd) & 0x10)) {
if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (dp && !dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) &&
((a->vm | a->vd) & 0x10)) {
return false;
}
@ -483,12 +410,12 @@ static bool trans_VCVT(DisasContext *s, arg_VCVT *a)
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (dp && !dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist */
if (dp && !dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
return false;
}
@ -555,6 +482,13 @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a)
int pass;
uint32_t offset;
/* SIZE == 2 is a VFP instruction; otherwise NEON. */
if (a->size == 2
? !dc_isar_feature(aa32_fpsp_v2, s)
: !arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) {
return false;
@ -564,10 +498,6 @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a)
pass = extract32(offset, 2, 1);
offset = extract32(offset, 0, 2) * 8;
if (a->size != 2 && !arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -614,6 +544,13 @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a)
int pass;
uint32_t offset;
/* SIZE == 2 is a VFP instruction; otherwise NEON. */
if (a->size == 2
? !dc_isar_feature(aa32_fpsp_v2, s)
: !arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) {
return false;
@ -623,10 +560,6 @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a)
pass = extract32(offset, 2, 1);
offset = extract32(offset, 0, 2) * 8;
if (a->size != 2 && !arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -700,6 +633,10 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
TCGv_i32 tmp;
bool ignore_vfp_enabled = false;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (arm_dc_feature(s, ARM_FEATURE_M)) {
/*
* The only M-profile VFP vmrs/vmsr sysreg is FPSCR.
@ -717,7 +654,7 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
* VFPv2 allows access to FPSID from userspace; VFPv3 restricts
* all ID registers to privileged access only.
*/
if (IS_USER(s) && arm_dc_feature(s, ARM_FEATURE_VFP3)) {
if (IS_USER(s) && dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
ignore_vfp_enabled = true;
@ -746,7 +683,7 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
case ARM_VFP_FPINST:
case ARM_VFP_FPINST2:
/* Not present in VFPv3 */
if (IS_USER(s) || arm_dc_feature(s, ARM_FEATURE_VFP3)) {
if (IS_USER(s) || dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
break;
@ -844,6 +781,10 @@ static bool trans_VMOV_single(DisasContext *s, arg_VMOV_single *a)
{
TCGv_i32 tmp;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -873,6 +814,10 @@ static bool trans_VMOV_64_sp(DisasContext *s, arg_VMOV_64_sp *a)
{
TCGv_i32 tmp;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
/*
* VMOV between two general-purpose registers and two single precision
* floating point registers
@ -908,8 +853,12 @@ static bool trans_VMOV_64_dp(DisasContext *s, arg_VMOV_64_dp *a)
/*
* VMOV between two general-purpose registers and one double precision
* floating point register
* floating point register. Note that this does not require support
* for double precision arithmetic.
*/
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
@ -946,6 +895,10 @@ static bool trans_VLDR_VSTR_sp(DisasContext *s, arg_VLDR_VSTR_sp *a)
uint32_t offset;
TCGv_i32 addr, tmp;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -977,6 +930,11 @@ static bool trans_VLDR_VSTR_dp(DisasContext *s, arg_VLDR_VSTR_dp *a)
TCGv_i32 addr;
TCGv_i64 tmp;
/* Note that this does not require support for double arithmetic. */
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
return false;
@ -1013,6 +971,10 @@ static bool trans_VLDM_VSTM_sp(DisasContext *s, arg_VLDM_VSTM_sp *a)
TCGv_i32 addr, tmp;
int i, n;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
n = a->imm;
if (n == 0 || (a->vd + n) > 32) {
@ -1086,6 +1048,11 @@ static bool trans_VLDM_VSTM_dp(DisasContext *s, arg_VLDM_VSTM_dp *a)
TCGv_i64 tmp;
int i, n;
/* Note that this does not require support for double arithmetic. */
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
n = a->imm >> 1;
if (n == 0 || (a->vd + n) > 32 || n > 16) {
@ -1234,6 +1201,10 @@ static bool do_vfp_3op_sp(DisasContext *s, VFPGen3OpSPFn *fn,
TCGv_i32 f0, f1, fd;
TCGv_ptr fpst;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpshvec, s) &&
(veclen != 0 || s->vec_stride != 0)) {
return false;
@ -1308,12 +1279,12 @@ static bool do_vfp_3op_dp(DisasContext *s, VFPGen3OpDPFn *fn,
TCGv_i64 f0, f1, fd;
TCGv_ptr fpst;
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vn | vm) & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vn | vm) & 0x10)) {
return false;
}
@ -1388,6 +1359,10 @@ static bool do_vfp_2op_sp(DisasContext *s, VFPGen2OpSPFn *fn, int vd, int vm)
int veclen = s->vec_len;
TCGv_i32 f0, fd;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpshvec, s) &&
(veclen != 0 || s->vec_stride != 0)) {
return false;
@ -1457,12 +1432,12 @@ static bool do_vfp_2op_dp(DisasContext *s, VFPGen2OpDPFn *fn, int vd, int vm)
int veclen = s->vec_len;
TCGv_i64 f0, fd;
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vm) & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist */
if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vm) & 0x10)) {
return false;
}
@ -1736,7 +1711,43 @@ static bool trans_VDIV_dp(DisasContext *s, arg_VDIV_dp *a)
return do_vfp_3op_dp(s, gen_helper_vfp_divd, a->vd, a->vn, a->vm, false);
}
static bool trans_VFM_sp(DisasContext *s, arg_VFM_sp *a)
static bool trans_VMINNM_sp(DisasContext *s, arg_VMINNM_sp *a)
{
if (!dc_isar_feature(aa32_vminmaxnm, s)) {
return false;
}
return do_vfp_3op_sp(s, gen_helper_vfp_minnums,
a->vd, a->vn, a->vm, false);
}
static bool trans_VMAXNM_sp(DisasContext *s, arg_VMAXNM_sp *a)
{
if (!dc_isar_feature(aa32_vminmaxnm, s)) {
return false;
}
return do_vfp_3op_sp(s, gen_helper_vfp_maxnums,
a->vd, a->vn, a->vm, false);
}
static bool trans_VMINNM_dp(DisasContext *s, arg_VMINNM_dp *a)
{
if (!dc_isar_feature(aa32_vminmaxnm, s)) {
return false;
}
return do_vfp_3op_dp(s, gen_helper_vfp_minnumd,
a->vd, a->vn, a->vm, false);
}
static bool trans_VMAXNM_dp(DisasContext *s, arg_VMAXNM_dp *a)
{
if (!dc_isar_feature(aa32_vminmaxnm, s)) {
return false;
}
return do_vfp_3op_dp(s, gen_helper_vfp_maxnumd,
a->vd, a->vn, a->vm, false);
}
static bool do_vfm_sp(DisasContext *s, arg_VFMA_sp *a, bool neg_n, bool neg_d)
{
/*
* VFNMA : fd = muladd(-fd, fn, fm)
@ -1755,11 +1766,18 @@ static bool trans_VFM_sp(DisasContext *s, arg_VFM_sp *a)
/*
* Present in VFPv4 only.
* Note that we can't rely on the SIMDFMAC check alone, because
* in a Neon-no-VFP core that ID register field will be non-zero.
*/
if (!dc_isar_feature(aa32_simdfmac, s) ||
!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
/*
* In v7A, UNPREDICTABLE with non-zero vector length/stride; from
* v8A, must UNDEF. We choose to UNDEF for both v7A and v8A.
*/
if (!arm_dc_feature(s, ARM_FEATURE_VFP4) ||
(s->vec_len != 0 || s->vec_stride != 0)) {
if (s->vec_len != 0 || s->vec_stride != 0) {
return false;
}
@ -1773,12 +1791,12 @@ static bool trans_VFM_sp(DisasContext *s, arg_VFM_sp *a)
neon_load_reg32(vn, a->vn);
neon_load_reg32(vm, a->vm);
if (a->o2) {
if (neg_n) {
/* VFNMS, VFMS */
gen_helper_vfp_negs(vn, vn);
}
neon_load_reg32(vd, a->vd);
if (a->o1 & 1) {
if (neg_d) {
/* VFNMA, VFNMS */
gen_helper_vfp_negs(vd, vd);
}
@ -1794,7 +1812,27 @@ static bool trans_VFM_sp(DisasContext *s, arg_VFM_sp *a)
return true;
}
static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
static bool trans_VFMA_sp(DisasContext *s, arg_VFMA_sp *a)
{
return do_vfm_sp(s, a, false, false);
}
static bool trans_VFMS_sp(DisasContext *s, arg_VFMS_sp *a)
{
return do_vfm_sp(s, a, true, false);
}
static bool trans_VFNMA_sp(DisasContext *s, arg_VFNMA_sp *a)
{
return do_vfm_sp(s, a, false, true);
}
static bool trans_VFNMS_sp(DisasContext *s, arg_VFNMS_sp *a)
{
return do_vfm_sp(s, a, true, true);
}
static bool do_vfm_dp(DisasContext *s, arg_VFMA_dp *a, bool neg_n, bool neg_d)
{
/*
* VFNMA : fd = muladd(-fd, fn, fm)
@ -1813,11 +1851,18 @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
/*
* Present in VFPv4 only.
* Note that we can't rely on the SIMDFMAC check alone, because
* in a Neon-no-VFP core that ID register field will be non-zero.
*/
if (!dc_isar_feature(aa32_simdfmac, s) ||
!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
/*
* In v7A, UNPREDICTABLE with non-zero vector length/stride; from
* v8A, must UNDEF. We choose to UNDEF for both v7A and v8A.
*/
if (!arm_dc_feature(s, ARM_FEATURE_VFP4) ||
(s->vec_len != 0 || s->vec_stride != 0)) {
if (s->vec_len != 0 || s->vec_stride != 0) {
return false;
}
@ -1827,7 +1872,9 @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) &&
((a->vd | a->vn | a->vm) & 0x10)) {
return false;
}
@ -1841,12 +1888,12 @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
neon_load_reg64(vn, a->vn);
neon_load_reg64(vm, a->vm);
if (a->o2) {
if (neg_n) {
/* VFNMS, VFMS */
gen_helper_vfp_negd(vn, vn);
}
neon_load_reg64(vd, a->vd);
if (a->o1 & 1) {
if (neg_d) {
/* VFNMA, VFNMS */
gen_helper_vfp_negd(vd, vd);
}
@ -1862,6 +1909,26 @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
return true;
}
static bool trans_VFMA_dp(DisasContext *s, arg_VFMA_dp *a)
{
return do_vfm_dp(s, a, false, false);
}
static bool trans_VFMS_dp(DisasContext *s, arg_VFMS_dp *a)
{
return do_vfm_dp(s, a, true, false);
}
static bool trans_VFNMA_dp(DisasContext *s, arg_VFNMA_dp *a)
{
return do_vfm_dp(s, a, false, true);
}
static bool trans_VFNMS_dp(DisasContext *s, arg_VFNMS_dp *a)
{
return do_vfm_dp(s, a, true, true);
}
static bool trans_VMOV_imm_sp(DisasContext *s, arg_VMOV_imm_sp *a)
{
uint32_t delta_d = 0;
@ -1871,12 +1938,12 @@ static bool trans_VMOV_imm_sp(DisasContext *s, arg_VMOV_imm_sp *a)
vd = a->vd;
if (!dc_isar_feature(aa32_fpshvec, s) &&
(veclen != 0 || s->vec_stride != 0)) {
if (!dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) {
if (!dc_isar_feature(aa32_fpshvec, s) &&
(veclen != 0 || s->vec_stride != 0)) {
return false;
}
@ -1921,24 +1988,20 @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a)
vd = a->vd;
if (!dc_isar_feature(aa32_fpdp_v3, s)) {
return false;
}
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (vd & 0x10)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpshvec, s) &&
(veclen != 0 || s->vec_stride != 0)) {
return false;
}
if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2025,6 +2088,10 @@ static bool trans_VCMP_sp(DisasContext *s, arg_VCMP_sp *a)
{
TCGv_i32 vd, vm;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
/* Vm/M bits must be zero for the Z variant */
if (a->z && a->vm != 0) {
return false;
@ -2060,6 +2127,10 @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a)
{
TCGv_i64 vd, vm;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
/* Vm/M bits must be zero for the Z variant */
if (a->z && a->vm != 0) {
return false;
@ -2070,10 +2141,6 @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2134,6 +2201,10 @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a)
TCGv_i32 tmp;
TCGv_i64 vd;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fp16_dpconv, s)) {
return false;
}
@ -2143,10 +2214,6 @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2200,6 +2267,10 @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a)
TCGv_i32 tmp;
TCGv_i64 vm;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fp16_dpconv, s)) {
return false;
}
@ -2209,10 +2280,6 @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2260,6 +2327,10 @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a)
TCGv_ptr fpst;
TCGv_i64 tmp;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_vrint, s)) {
return false;
}
@ -2269,10 +2340,6 @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2321,6 +2388,10 @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a)
TCGv_i64 tmp;
TCGv_i32 tcg_rmode;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_vrint, s)) {
return false;
}
@ -2330,10 +2401,6 @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2380,6 +2447,10 @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a)
TCGv_ptr fpst;
TCGv_i64 tmp;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_vrint, s)) {
return false;
}
@ -2389,10 +2460,6 @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2412,12 +2479,12 @@ static bool trans_VCVT_sp(DisasContext *s, arg_VCVT_sp *a)
TCGv_i64 vd;
TCGv_i32 vm;
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
return false;
}
@ -2440,12 +2507,12 @@ static bool trans_VCVT_dp(DisasContext *s, arg_VCVT_dp *a)
TCGv_i64 vm;
TCGv_i32 vd;
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
return false;
}
@ -2468,6 +2535,10 @@ static bool trans_VCVT_int_sp(DisasContext *s, arg_VCVT_int_sp *a)
TCGv_i32 vm;
TCGv_ptr fpst;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2494,12 +2565,12 @@ static bool trans_VCVT_int_dp(DisasContext *s, arg_VCVT_int_dp *a)
TCGv_i64 vd;
TCGv_ptr fpst;
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
return false;
}
@ -2530,6 +2601,10 @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a)
TCGv_i32 vd;
TCGv_i64 vm;
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_jscvt, s)) {
return false;
}
@ -2539,10 +2614,6 @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2563,7 +2634,7 @@ static bool trans_VCVT_fix_sp(DisasContext *s, arg_VCVT_fix_sp *a)
TCGv_ptr fpst;
int frac_bits;
if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) {
if (!dc_isar_feature(aa32_fpsp_v3, s)) {
return false;
}
@ -2623,7 +2694,7 @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a)
TCGv_ptr fpst;
int frac_bits;
if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) {
if (!dc_isar_feature(aa32_fpdp_v3, s)) {
return false;
}
@ -2632,10 +2703,6 @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a)
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2690,6 +2757,10 @@ static bool trans_VCVT_sp_int(DisasContext *s, arg_VCVT_sp_int *a)
TCGv_i32 vm;
TCGv_ptr fpst;
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
return false;
}
if (!vfp_access_check(s)) {
return true;
}
@ -2723,12 +2794,12 @@ static bool trans_VCVT_dp_int(DisasContext *s, arg_VCVT_dp_int *a)
TCGv_i64 vm;
TCGv_ptr fpst;
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
if (!dc_isar_feature(aa32_fpdp_v2, s)) {
return false;
}
if (!dc_isar_feature(aa32_fpdp, s)) {
/* UNDEF accesses to D16-D31 if they don't exist. */
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) {
return false;
}
@ -2760,3 +2831,42 @@ static bool trans_VCVT_dp_int(DisasContext *s, arg_VCVT_dp_int *a)
tcg_temp_free_ptr(fpst);
return true;
}
/*
* Decode VLLDM and VLSTM are nonstandard because:
* * if there is no FPU then these insns must NOP in
* Secure state and UNDEF in Nonsecure state
* * if there is an FPU then these insns do not have
* the usual behaviour that vfp_access_check() provides of
* being controlled by CPACR/NSACR enable bits or the
* lazy-stacking logic.
*/
static bool trans_VLLDM_VLSTM(DisasContext *s, arg_VLLDM_VLSTM *a)
{
TCGv_i32 fptr;
if (!arm_dc_feature(s, ARM_FEATURE_M) ||
!arm_dc_feature(s, ARM_FEATURE_V8)) {
return false;
}
/* If not secure, UNDEF. */
if (!s->v8m_secure) {
return false;
}
/* If no fpu, NOP. */
if (!dc_isar_feature(aa32_vfp, s)) {
return true;
}
fptr = load_reg(s, a->rn);
if (a->l) {
gen_helper_v7m_vlldm(cpu_env, fptr);
} else {
gen_helper_v7m_vlstm(cpu_env, fptr);
}
tcg_temp_free_i32(fptr);
/* End the TB, because we have updated FP control bits */
s->base.is_jmp = DISAS_UPDATE;
return true;
}

122
target/arm/translate.c
View File

@ -2646,35 +2646,6 @@ static void gen_neon_dup_high16(TCGv_i32 var)
tcg_temp_free_i32(tmp);
}
/*
* Disassemble a VFP instruction. Returns nonzero if an error occurred
* (ie. an undefined instruction).
*/
static int disas_vfp_insn(DisasContext *s, uint32_t insn)
{
if (!arm_dc_feature(s, ARM_FEATURE_VFP)) {
return 1;
}
/*
* If the decodetree decoder handles this insn it will always
* emit code to either execute the insn or generate an appropriate
* exception; so we don't need to ever return non-zero to tell
* the calling code to emit an UNDEF exception.
*/
if (extract32(insn, 28, 4) == 0xf) {
if (disas_vfp_uncond(s, insn)) {
return 0;
}
} else {
if (disas_vfp(s, insn)) {
return 0;
}
}
/* If the decodetree decoder didn't handle this insn, it must be UNDEF */
return 1;
}
static inline bool use_goto_tb(DisasContext *s, target_ulong dest)
{
#ifndef CONFIG_USER_ONLY
@ -5150,7 +5121,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
break;
case NEON_3R_VFM_VQRDMLSH:
if (!arm_dc_feature(s, ARM_FEATURE_VFP4)) {
if (!dc_isar_feature(aa32_simdfmac, s)) {
return 1;
}
break;
@ -10782,7 +10753,9 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
ARCH(5);
/* Unconditional instructions. */
if (disas_a32_uncond(s, insn)) {
/* TODO: Perhaps merge these into one decodetree output file. */
if (disas_a32_uncond(s, insn) ||
disas_vfp_uncond(s, insn)) {
return;
}
/* fall back to legacy decoder */
@ -10809,13 +10782,6 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
}
return;
}
if ((insn & 0x0f000e10) == 0x0e000a00) {
/* VFP. */
if (disas_vfp_insn(s, insn)) {
goto illegal_op;
}
return;
}
if ((insn & 0x0e000f00) == 0x0c000100) {
if (arm_dc_feature(s, ARM_FEATURE_IWMMXT)) {
/* iWMMXt register transfer. */
@ -10846,7 +10812,9 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
arm_skip_unless(s, cond);
}
if (disas_a32(s, insn)) {
/* TODO: Perhaps merge these into one decodetree output file. */
if (disas_a32(s, insn) ||
disas_vfp(s, insn)) {
return;
}
/* fall back to legacy decoder */
@ -10856,11 +10824,10 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
case 0xd:
case 0xe:
if (((insn >> 8) & 0xe) == 10) {
/* VFP. */
if (disas_vfp_insn(s, insn)) {
goto illegal_op;
}
} else if (disas_coproc_insn(s, insn)) {
/* VFP, but failed disas_vfp. */
goto illegal_op;
}
if (disas_coproc_insn(s, insn)) {
/* Coprocessor. */
goto illegal_op;
}
@ -10949,7 +10916,14 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
ARCH(6T2);
}
if (disas_t32(s, insn)) {
/*
* TODO: Perhaps merge these into one decodetree output file.
* Note disas_vfp is written for a32 with cond field in the
* top nibble. The t32 encoding requires 0xe in the top nibble.
*/
if (disas_t32(s, insn) ||
disas_vfp_uncond(s, insn) ||
((insn >> 28) == 0xe && disas_vfp(s, insn))) {
return;
}
/* fall back to legacy decoder */
@ -10966,53 +10940,16 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
goto illegal_op; /* op0 = 0b11 : unallocated */
}
/*
* Decode VLLDM and VLSTM first: these are nonstandard because:
* * if there is no FPU then these insns must NOP in
* Secure state and UNDEF in Nonsecure state
* * if there is an FPU then these insns do not have
* the usual behaviour that disas_vfp_insn() provides of
* being controlled by CPACR/NSACR enable bits or the
* lazy-stacking logic.
*/
if (arm_dc_feature(s, ARM_FEATURE_V8) &&
(insn & 0xffa00f00) == 0xec200a00) {
/* 0b1110_1100_0x1x_xxxx_xxxx_1010_xxxx_xxxx
* - VLLDM, VLSTM
* We choose to UNDEF if the RAZ bits are non-zero.
*/
if (!s->v8m_secure || (insn & 0x0040f0ff)) {
goto illegal_op;
}
if (arm_dc_feature(s, ARM_FEATURE_VFP)) {
uint32_t rn = (insn >> 16) & 0xf;
TCGv_i32 fptr = load_reg(s, rn);
if (extract32(insn, 20, 1)) {
gen_helper_v7m_vlldm(cpu_env, fptr);
} else {
gen_helper_v7m_vlstm(cpu_env, fptr);
}
tcg_temp_free_i32(fptr);
/* End the TB, because we have updated FP control bits */
s->base.is_jmp = DISAS_UPDATE;
}
break;
}
if (arm_dc_feature(s, ARM_FEATURE_VFP) &&
((insn >> 8) & 0xe) == 10) {
if (((insn >> 8) & 0xe) == 10 &&
dc_isar_feature(aa32_fpsp_v2, s)) {
/* FP, and the CPU supports it */
if (disas_vfp_insn(s, insn)) {
goto illegal_op;
}
break;
goto illegal_op;
} else {
/* All other insns: NOCP */
gen_exception_insn(s, s->pc_curr, EXCP_NOCP,
syn_uncategorized(),
default_exception_el(s));
}
/* All other insns: NOCP */
gen_exception_insn(s, s->pc_curr, EXCP_NOCP, syn_uncategorized(),
default_exception_el(s));
break;
}
if ((insn & 0xfe000a00) == 0xfc000800
@ -11034,9 +10971,8 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
goto illegal_op;
}
} else if (((insn >> 8) & 0xe) == 10) {
if (disas_vfp_insn(s, insn)) {
goto illegal_op;
}
/* VFP, but failed disas_vfp. */
goto illegal_op;
} else {
if (insn & (1 << 28))
goto illegal_op;

12
target/arm/vfp-uncond.decode
View File

@ -41,15 +41,19 @@
%vd_dp 22:1 12:4
%vd_sp 12:4 22:1
@vfp_dnm_s ................................ vm=%vm_sp vn=%vn_sp vd=%vd_sp
@vfp_dnm_d ................................ vm=%vm_dp vn=%vn_dp vd=%vd_dp
VSEL 1111 1110 0. cc:2 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp dp=0
VSEL 1111 1110 0. cc:2 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp dp=1
VMINMAXNM 1111 1110 1.00 .... .... 1010 . op:1 .0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp dp=0
VMINMAXNM 1111 1110 1.00 .... .... 1011 . op:1 .0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp dp=1
VMAXNM_sp 1111 1110 1.00 .... .... 1010 .0.0 .... @vfp_dnm_s
VMINNM_sp 1111 1110 1.00 .... .... 1010 .1.0 .... @vfp_dnm_s
VMAXNM_dp 1111 1110 1.00 .... .... 1011 .0.0 .... @vfp_dnm_d
VMINNM_dp 1111 1110 1.00 .... .... 1011 .1.0 .... @vfp_dnm_d
VRINT 1111 1110 1.11 10 rm:2 .... 1010 01.0 .... \
vm=%vm_sp vd=%vd_sp dp=0

153
target/arm/vfp.decode
View File

@ -46,6 +46,14 @@
%vmov_imm 16:4 0:4
@vfp_dnm_s ................................ vm=%vm_sp vn=%vn_sp vd=%vd_sp
@vfp_dnm_d ................................ vm=%vm_dp vn=%vn_dp vd=%vd_dp
@vfp_dm_ss ................................ vm=%vm_sp vd=%vd_sp
@vfp_dm_dd ................................ vm=%vm_dp vd=%vd_dp
@vfp_dm_ds ................................ vm=%vm_sp vd=%vd_dp
@vfp_dm_sd ................................ vm=%vm_dp vd=%vd_sp
# VMOV scalar to general-purpose register; note that this does
# include some Neon cases.
VMOV_to_gp ---- 1110 u:1 1. 1 .... rt:4 1011 ... 1 0000 \
@ -66,20 +74,15 @@ VDUP ---- 1110 1 b:1 q:1 0 .... rt:4 1011 . 0 e:1 1 0000 \
vn=%vn_dp
VMSR_VMRS ---- 1110 111 l:1 reg:4 rt:4 1010 0001 0000
VMOV_single ---- 1110 000 l:1 .... rt:4 1010 . 001 0000 \
vn=%vn_sp
VMOV_single ---- 1110 000 l:1 .... rt:4 1010 . 001 0000 vn=%vn_sp
VMOV_64_sp ---- 1100 010 op:1 rt2:4 rt:4 1010 00.1 .... \
vm=%vm_sp
VMOV_64_dp ---- 1100 010 op:1 rt2:4 rt:4 1011 00.1 .... \
vm=%vm_dp
VMOV_64_sp ---- 1100 010 op:1 rt2:4 rt:4 1010 00.1 .... vm=%vm_sp
VMOV_64_dp ---- 1100 010 op:1 rt2:4 rt:4 1011 00.1 .... vm=%vm_dp
# Note that the half-precision variants of VLDR and VSTR are
# not part of this decodetree at all because they have bits [9:8] == 0b01
VLDR_VSTR_sp ---- 1101 u:1 .0 l:1 rn:4 .... 1010 imm:8 \
vd=%vd_sp
VLDR_VSTR_dp ---- 1101 u:1 .0 l:1 rn:4 .... 1011 imm:8 \
vd=%vd_dp
VLDR_VSTR_sp ---- 1101 u:1 .0 l:1 rn:4 .... 1010 imm:8 vd=%vd_sp
VLDR_VSTR_dp ---- 1101 u:1 .0 l:1 rn:4 .... 1011 imm:8 vd=%vd_dp
# We split the load/store multiple up into two patterns to avoid
# overlap with other insns in the "Advanced SIMD load/store and 64-bit move"
@ -100,84 +103,59 @@ VLDM_VSTM_dp ---- 1101 0.1 l:1 rn:4 .... 1011 imm:8 \
vd=%vd_dp p=1 u=0 w=1
# 3-register VFP data-processing; bits [23,21:20,6] identify the operation.
VMLA_sp ---- 1110 0.00 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VMLA_dp ---- 1110 0.00 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VMLA_sp ---- 1110 0.00 .... .... 1010 .0.0 .... @vfp_dnm_s
VMLA_dp ---- 1110 0.00 .... .... 1011 .0.0 .... @vfp_dnm_d
VMLS_sp ---- 1110 0.00 .... .... 1010 .1.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VMLS_dp ---- 1110 0.00 .... .... 1011 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VMLS_sp ---- 1110 0.00 .... .... 1010 .1.0 .... @vfp_dnm_s
VMLS_dp ---- 1110 0.00 .... .... 1011 .1.0 .... @vfp_dnm_d
VNMLS_sp ---- 1110 0.01 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VNMLS_dp ---- 1110 0.01 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VNMLS_sp ---- 1110 0.01 .... .... 1010 .0.0 .... @vfp_dnm_s
VNMLS_dp ---- 1110 0.01 .... .... 1011 .0.0 .... @vfp_dnm_d
VNMLA_sp ---- 1110 0.01 .... .... 1010 .1.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VNMLA_dp ---- 1110 0.01 .... .... 1011 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VNMLA_sp ---- 1110 0.01 .... .... 1010 .1.0 .... @vfp_dnm_s
VNMLA_dp ---- 1110 0.01 .... .... 1011 .1.0 .... @vfp_dnm_d
VMUL_sp ---- 1110 0.10 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VMUL_dp ---- 1110 0.10 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VMUL_sp ---- 1110 0.10 .... .... 1010 .0.0 .... @vfp_dnm_s
VMUL_dp ---- 1110 0.10 .... .... 1011 .0.0 .... @vfp_dnm_d
VNMUL_sp ---- 1110 0.10 .... .... 1010 .1.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VNMUL_dp ---- 1110 0.10 .... .... 1011 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VNMUL_sp ---- 1110 0.10 .... .... 1010 .1.0 .... @vfp_dnm_s
VNMUL_dp ---- 1110 0.10 .... .... 1011 .1.0 .... @vfp_dnm_d
VADD_sp ---- 1110 0.11 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VADD_dp ---- 1110 0.11 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VADD_sp ---- 1110 0.11 .... .... 1010 .0.0 .... @vfp_dnm_s
VADD_dp ---- 1110 0.11 .... .... 1011 .0.0 .... @vfp_dnm_d
VSUB_sp ---- 1110 0.11 .... .... 1010 .1.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VSUB_dp ---- 1110 0.11 .... .... 1011 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VSUB_sp ---- 1110 0.11 .... .... 1010 .1.0 .... @vfp_dnm_s
VSUB_dp ---- 1110 0.11 .... .... 1011 .1.0 .... @vfp_dnm_d
VDIV_sp ---- 1110 1.00 .... .... 1010 .0.0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp
VDIV_dp ---- 1110 1.00 .... .... 1011 .0.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VDIV_sp ---- 1110 1.00 .... .... 1010 .0.0 .... @vfp_dnm_s
VDIV_dp ---- 1110 1.00 .... .... 1011 .0.0 .... @vfp_dnm_d
VFM_sp ---- 1110 1.01 .... .... 1010 . o2:1 . 0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp o1=1
VFM_dp ---- 1110 1.01 .... .... 1011 . o2:1 . 0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp o1=1
VFM_sp ---- 1110 1.10 .... .... 1010 . o2:1 . 0 .... \
vm=%vm_sp vn=%vn_sp vd=%vd_sp o1=2
VFM_dp ---- 1110 1.10 .... .... 1011 . o2:1 . 0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp o1=2
VFMA_sp ---- 1110 1.10 .... .... 1010 .0. 0 .... @vfp_dnm_s
VFMS_sp ---- 1110 1.10 .... .... 1010 .1. 0 .... @vfp_dnm_s
VFNMA_sp ---- 1110 1.01 .... .... 1010 .0. 0 .... @vfp_dnm_s
VFNMS_sp ---- 1110 1.01 .... .... 1010 .1. 0 .... @vfp_dnm_s
VFMA_dp ---- 1110 1.10 .... .... 1011 .0.0 .... @vfp_dnm_d
VFMS_dp ---- 1110 1.10 .... .... 1011 .1.0 .... @vfp_dnm_d
VFNMA_dp ---- 1110 1.01 .... .... 1011 .0.0 .... @vfp_dnm_d
VFNMS_dp ---- 1110 1.01 .... .... 1011 .1.0 .... @vfp_dnm_d
VMOV_imm_sp ---- 1110 1.11 .... .... 1010 0000 .... \
vd=%vd_sp imm=%vmov_imm
VMOV_imm_dp ---- 1110 1.11 .... .... 1011 0000 .... \
vd=%vd_dp imm=%vmov_imm
VMOV_reg_sp ---- 1110 1.11 0000 .... 1010 01.0 .... \
vd=%vd_sp vm=%vm_sp
VMOV_reg_dp ---- 1110 1.11 0000 .... 1011 01.0 .... \
vd=%vd_dp vm=%vm_dp
VMOV_reg_sp ---- 1110 1.11 0000 .... 1010 01.0 .... @vfp_dm_ss
VMOV_reg_dp ---- 1110 1.11 0000 .... 1011 01.0 .... @vfp_dm_dd
VABS_sp ---- 1110 1.11 0000 .... 1010 11.0 .... \
vd=%vd_sp vm=%vm_sp
VABS_dp ---- 1110 1.11 0000 .... 1011 11.0 .... \
vd=%vd_dp vm=%vm_dp
VABS_sp ---- 1110 1.11 0000 .... 1010 11.0 .... @vfp_dm_ss
VABS_dp ---- 1110 1.11 0000 .... 1011 11.0 .... @vfp_dm_dd
VNEG_sp ---- 1110 1.11 0001 .... 1010 01.0 .... \
vd=%vd_sp vm=%vm_sp
VNEG_dp ---- 1110 1.11 0001 .... 1011 01.0 .... \
vd=%vd_dp vm=%vm_dp
VNEG_sp ---- 1110 1.11 0001 .... 1010 01.0 .... @vfp_dm_ss
VNEG_dp ---- 1110 1.11 0001 .... 1011 01.0 .... @vfp_dm_dd
VSQRT_sp ---- 1110 1.11 0001 .... 1010 11.0 .... \
vd=%vd_sp vm=%vm_sp
VSQRT_dp ---- 1110 1.11 0001 .... 1011 11.0 .... \
vd=%vd_dp vm=%vm_dp
VSQRT_sp ---- 1110 1.11 0001 .... 1010 11.0 .... @vfp_dm_ss
VSQRT_dp ---- 1110 1.11 0001 .... 1011 11.0 .... @vfp_dm_dd
VCMP_sp ---- 1110 1.11 010 z:1 .... 1010 e:1 1.0 .... \
vd=%vd_sp vm=%vm_sp
@ -190,32 +168,26 @@ VCVT_f32_f16 ---- 1110 1.11 0010 .... 1010 t:1 1.0 .... \
VCVT_f64_f16 ---- 1110 1.11 0010 .... 1011 t:1 1.0 .... \
vd=%vd_dp vm=%vm_sp
# VCVTB and VCVTT to f16: Vd format is always vd_sp; Vm format depends on size bit
# VCVTB and VCVTT to f16: Vd format is always vd_sp;
# Vm format depends on size bit
VCVT_f16_f32 ---- 1110 1.11 0011 .... 1010 t:1 1.0 .... \
vd=%vd_sp vm=%vm_sp
VCVT_f16_f64 ---- 1110 1.11 0011 .... 1011 t:1 1.0 .... \
vd=%vd_sp vm=%vm_dp
VRINTR_sp ---- 1110 1.11 0110 .... 1010 01.0 .... \
vd=%vd_sp vm=%vm_sp
VRINTR_dp ---- 1110 1.11 0110 .... 1011 01.0 .... \
vd=%vd_dp vm=%vm_dp
VRINTR_sp ---- 1110 1.11 0110 .... 1010 01.0 .... @vfp_dm_ss
VRINTR_dp ---- 1110 1.11 0110 .... 1011 01.0 .... @vfp_dm_dd
VRINTZ_sp ---- 1110 1.11 0110 .... 1010 11.0 .... \
vd=%vd_sp vm=%vm_sp
VRINTZ_dp ---- 1110 1.11 0110 .... 1011 11.0 .... \
vd=%vd_dp vm=%vm_dp
VRINTZ_sp ---- 1110 1.11 0110 .... 1010 11.0 .... @vfp_dm_ss
VRINTZ_dp ---- 1110 1.11 0110 .... 1011 11.0 .... @vfp_dm_dd
VRINTX_sp ---- 1110 1.11 0111 .... 1010 01.0 .... \
vd=%vd_sp vm=%vm_sp
VRINTX_dp ---- 1110 1.11 0111 .... 1011 01.0 .... \
vd=%vd_dp vm=%vm_dp
VRINTX_sp ---- 1110 1.11 0111 .... 1010 01.0 .... @vfp_dm_ss
VRINTX_dp ---- 1110 1.11 0111 .... 1011 01.0 .... @vfp_dm_dd
# VCVT between single and double: Vm precision depends on size; Vd is its reverse
VCVT_sp ---- 1110 1.11 0111 .... 1010 11.0 .... \
vd=%vd_dp vm=%vm_sp
VCVT_dp ---- 1110 1.11 0111 .... 1011 11.0 .... \
vd=%vd_sp vm=%vm_dp
# VCVT between single and double:
# Vm precision depends on size; Vd is its reverse
VCVT_sp ---- 1110 1.11 0111 .... 1010 11.0 .... @vfp_dm_ds
VCVT_dp ---- 1110 1.11 0111 .... 1011 11.0 .... @vfp_dm_sd
# VCVT from integer to floating point: Vm always single; Vd depends on size
VCVT_int_sp ---- 1110 1.11 1000 .... 1010 s:1 1.0 .... \
@ -224,8 +196,7 @@ VCVT_int_dp ---- 1110 1.11 1000 .... 1011 s:1 1.0 .... \
vd=%vd_dp vm=%vm_sp
# VJCVT is always dp to sp
VJCVT ---- 1110 1.11 1001 .... 1011 11.0 .... \
vd=%vd_sp vm=%vm_dp
VJCVT ---- 1110 1.11 1001 .... 1011 11.0 .... @vfp_dm_sd
# VCVT between floating-point and fixed-point. The immediate value
# is in the same format as a Vm single-precision register number.
@ -242,3 +213,5 @@ VCVT_sp_int ---- 1110 1.11 110 s:1 .... 1010 rz:1 1.0 .... \
vd=%vd_sp vm=%vm_sp
VCVT_dp_int ---- 1110 1.11 110 s:1 .... 1011 rz:1 1.0 .... \
vd=%vd_sp vm=%vm_dp
VLLDM_VLSTM 1110 1100 001 l:1 rn:4 0000 1010 0000 0000

99
tests/acceptance/machine_arm_integratorcp.py Normal file
View File

@ -0,0 +1,99 @@
# Functional test that boots a Linux kernel and checks the console
#
# Copyright (c) 2020 Red Hat, Inc.
#
# Author:
# Thomas Huth <thuth@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
import logging
from avocado import skipUnless
from avocado_qemu import Test
from avocado_qemu import wait_for_console_pattern
NUMPY_AVAILABLE = True
try:
import numpy as np
except ImportError:
NUMPY_AVAILABLE = False
CV2_AVAILABLE = True
try:
import cv2
except ImportError:
CV2_AVAILABLE = False
class IntegratorMachine(Test):
timeout = 90
def boot_integratorcp(self):
kernel_url = ('https://github.com/zayac/qemu-arm/raw/master/'
'arm-test/kernel/zImage.integrator')
kernel_hash = '0d7adba893c503267c946a3cbdc63b4b54f25468'
kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
initrd_url = ('https://github.com/zayac/qemu-arm/raw/master/'
'arm-test/kernel/arm_root.img')
initrd_hash = 'b51e4154285bf784e017a37586428332d8c7bd8b'
initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
self.vm.set_console()
self.vm.add_args('-kernel', kernel_path,
'-initrd', initrd_path,
'-append', 'printk.time=0 console=ttyAMA0')
self.vm.launch()
@skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
def test_integratorcp_console(self):
"""
Boots the Linux kernel and checks that the console is operational
:avocado: tags=arch:arm
:avocado: tags=machine:integratorcp
:avocado: tags=device:pl011
"""
self.boot_integratorcp()
wait_for_console_pattern(self, 'Log in as root')
@skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
@skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
@skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
def test_framebuffer_tux_logo(self):
"""
Boot Linux and verify the Tux logo is displayed on the framebuffer.
:avocado: tags=arch:arm
:avocado: tags=machine:integratorcp
:avocado: tags=device:pl110
:avocado: tags=device:framebuffer
"""
screendump_path = os.path.join(self.workdir, "screendump.pbm")
tuxlogo_url = ('https://github.com/torvalds/linux/raw/v2.6.12/'
'drivers/video/logo/logo_linux_vga16.ppm')
tuxlogo_hash = '3991c2ddbd1ddaecda7601f8aafbcf5b02dc86af'
tuxlogo_path = self.fetch_asset(tuxlogo_url, asset_hash=tuxlogo_hash)
self.boot_integratorcp()
framebuffer_ready = 'Console: switching to colour frame buffer device'
wait_for_console_pattern(self, framebuffer_ready)
self.vm.command('human-monitor-command', command_line='stop')
self.vm.command('human-monitor-command',
command_line='screendump %s' % screendump_path)
logger = logging.getLogger('framebuffer')
cpu_count = 1
match_threshold = 0.92
screendump_bgr = cv2.imread(screendump_path)
screendump_gray = cv2.cvtColor(screendump_bgr, cv2.COLOR_BGR2GRAY)
result = cv2.matchTemplate(screendump_gray, cv2.imread(tuxlogo_path, 0),
cv2.TM_CCOEFF_NORMED)
loc = np.where(result >= match_threshold)
tux_count = 0
for tux_count, pt in enumerate(zip(*loc[::-1]), start=1):
logger.debug('found Tux at position [x, y] = %s', pt)
self.assertGreaterEqual(tux_count, cpu_count)

49
tests/acceptance/machine_arm_n8x0.py Normal file
View File

@ -0,0 +1,49 @@
# Functional test that boots a Linux kernel and checks the console
#
# Copyright (c) 2020 Red Hat, Inc.
#
# Author:
# Thomas Huth <thuth@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
from avocado import skipUnless
from avocado_qemu import Test
from avocado_qemu import wait_for_console_pattern
class N8x0Machine(Test):
"""Boots the Linux kernel and checks that the console is operational"""
timeout = 90
def __do_test_n8x0(self):
kernel_url = ('http://stskeeps.subnetmask.net/meego-n8x0/'
'meego-arm-n8x0-1.0.80.20100712.1431-'
'vmlinuz-2.6.35~rc4-129.1-n8x0')
kernel_hash = 'e9d5ab8d7548923a0061b6fbf601465e479ed269'
kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
self.vm.set_console(console_index=1)
self.vm.add_args('-kernel', kernel_path,
'-append', 'printk.time=0 console=ttyS1')
self.vm.launch()
wait_for_console_pattern(self, 'TSC2005 driver initializing')
@skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
def test_n800(self):
"""
:avocado: tags=arch:arm
:avocado: tags=machine:n800
"""
self.__do_test_n8x0()
@skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')
def test_n810(self):
"""
:avocado: tags=arch:arm
:avocado: tags=machine:n810
"""
self.__do_test_n8x0()