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MIPS patches queue

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- Fix CP0 cycle counter timing
 - Fix VMState of gt64120 IRQs
 - Long due PIIX4 QOM cleanups
 - ISA IRQ QOM'ification / cleanups
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Merge remote-tracking branch 'remotes/philmd/tags/mips-20220308' into staging

MIPS patches queue

- Fix CP0 cycle counter timing
- Fix VMState of gt64120 IRQs
- Long due PIIX4 QOM cleanups
- ISA IRQ QOM'ification / cleanups

# gpg: Signature made Tue 08 Mar 2022 18:39:42 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd/tags/mips-20220308:
  tests/avocado/linux_ssh_mips_malta.py: add missing accel (tcg) tag
  hw/isa: Inline and remove one-line isa_init_irq()
  hw/isa: Drop unused attributes from ISADevice
  hw/isa/isa-bus: Remove isabus_dev_print()
  hw/input/pckbd: QOM'ify IRQ numbers
  hw/rtc/m48t59-isa: QOM'ify IRQ number
  hw/rtc/mc146818rtc: QOM'ify IRQ number
  hw/mips/gt64xxx_pci: Resolve gt64120_register()
  hw/isa/piix4: Replace some magic IRQ constants
  hw/isa/piix4: Resolve global instance variable
  hw/isa/piix4: Pass PIIX4State as opaque parameter for piix4_set_irq()
  hw/isa/piix4: Resolve redundant i8259[] attribute
  malta: Move PCI interrupt handling from gt64xxx_pci to piix4
  hw/mips/gt64xxx_pci: Fix PCI IRQ levels to be preserved during migration
  target/mips: Remove duplicated MIPSCPU::cp0_count_rate
  target/mips: Fix cycle counter timing calculations

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2022-03-09 09:13:39 +00:00
commit f14ad81eed
27 changed files with 127 additions and 190 deletions
Download patch file Download diff file Expand all files Collapse all files

11
target/mips/cpu.c
View file

@ -434,14 +434,13 @@ static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info)
* Since commit 6af0bf9c7c3 this model assumes a CPU clocked at 200MHz.
*/
#define CPU_FREQ_HZ_DEFAULT 200000000
#define CP0_COUNT_RATE_DEFAULT 2
static void mips_cp0_period_set(MIPSCPU *cpu)
{
CPUMIPSState *env = &cpu->env;
env->cp0_count_ns = clock_ticks_to_ns(MIPS_CPU(cpu)->clock,
cpu->cp0_count_rate);
env->cpu_model->CCRes);
assert(env->cp0_count_ns);
}
@ -514,13 +513,6 @@ static ObjectClass *mips_cpu_class_by_name(const char *cpu_model)
return oc;
}
static Property mips_cpu_properties[] = {
/* CP0 timer running at half the clock of the CPU */
DEFINE_PROP_UINT32("cp0-count-rate", MIPSCPU, cp0_count_rate,
CP0_COUNT_RATE_DEFAULT),
DEFINE_PROP_END_OF_LIST()
};
#ifndef CONFIG_USER_ONLY
#include "hw/core/sysemu-cpu-ops.h"
@ -560,7 +552,6 @@ static void mips_cpu_class_init(ObjectClass *c, void *data)
device_class_set_parent_realize(dc, mips_cpu_realizefn,
&mcc->parent_realize);
device_class_set_parent_reset(dc, mips_cpu_reset, &mcc->parent_reset);
device_class_set_props(dc, mips_cpu_properties);
cc->class_by_name = mips_cpu_class_by_name;
cc->has_work = mips_cpu_has_work;

9
target/mips/cpu.h
View file

@ -1167,7 +1167,6 @@ typedef struct CPUArchState {
* @env: #CPUMIPSState
* @clock: this CPU input clock (may be connected
* to an output clock from another device).
* @cp0_count_rate: rate at which the coprocessor 0 counter increments
*
* A MIPS CPU.
*/
@ -1179,14 +1178,6 @@ struct ArchCPU {
Clock *clock;
CPUNegativeOffsetState neg;
CPUMIPSState env;
/*
* The Count register acts as a timer, incrementing at a constant rate,
* whether or not an instruction is executed, retired, or any forward
* progress is made through the pipeline. The rate at which the counter
* increments is implementation dependent, and is a function of the
* pipeline clock of the processor, not the issue width of the processor.
*/
unsigned cp0_count_rate;
};

9
target/mips/internal.h
View file

@ -47,6 +47,15 @@ struct mips_def_t {
target_ulong CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
int32_t SYNCI_Step;
/*
* @CCRes: rate at which the coprocessor 0 counter increments
*
* The Count register acts as a timer, incrementing at a constant rate,
* whether or not an instruction is executed, retired, or any forward
* progress is made through the pipeline. The rate at which the counter
* increments is implementation dependent, and is a function of the
* pipeline clock of the processor, not the issue width of the processor.
*/
int32_t CCRes;
int32_t CP0_Status_rw_bitmask;
int32_t CP0_TCStatus_rw_bitmask;