Merge branch 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: arm_boot: Conditionalised DTB command line update cadence_ttc: changed master clock frequency cadence_gem: avoid stack-writing buffer-overrun hw/a9mpcore: Fix compilation failure if physaddrs are 64 bit hw/omap.h: Drop broken MEM_VERBOSE tracing hw/armv7m_nvic: Make the NVIC a freestanding class hw/arm_gic: Move CPU interface memory region setup into arm_gic_init hw/arm_gic.c: Make NVIC interrupt numbering a runtime setting hw/arm_gic: Make CPU target registers RAZ/WI on uniprocessor hw/arm_gic: Add qdev property for GIC revision hw/armv7m_nvic: Use MemoryRegions for NVIC specific registers hw/arm_gic: Move NVIC specific reset to armv7m_nvic_reset hw/arm_gic: Remove the special casing of NCPU for the NVIC hw/arm_gic: Remove NVIC ifdefs from gic_state struct arm_boot: Fix typos in comment ARM: Exynos4210 IRQ: Introduce new IRQ gate functionality.
This commit is contained in:
commit
99918cec19
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@ -44,6 +44,7 @@ static int a15mp_priv_init(SysBusDevice *dev)
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s->gic = qdev_create(NULL, "arm_gic");
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s->gic = qdev_create(NULL, "arm_gic");
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qdev_prop_set_uint32(s->gic, "num-cpu", s->num_cpu);
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qdev_prop_set_uint32(s->gic, "num-cpu", s->num_cpu);
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qdev_prop_set_uint32(s->gic, "num-irq", s->num_irq);
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qdev_prop_set_uint32(s->gic, "num-irq", s->num_irq);
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qdev_prop_set_uint32(s->gic, "revision", 2);
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qdev_init_nofail(s->gic);
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qdev_init_nofail(s->gic);
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busdev = sysbus_from_qdev(s->gic);
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busdev = sysbus_from_qdev(s->gic);
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@ -75,7 +75,7 @@ static void a9_scu_write(void *opaque, target_phys_addr_t offset,
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break;
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break;
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default:
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default:
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fprintf(stderr, "Invalid size %u in write to a9 scu register %x\n",
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fprintf(stderr, "Invalid size %u in write to a9 scu register %x\n",
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size, offset);
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size, (unsigned)offset);
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return;
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return;
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}
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}
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@ -45,9 +45,9 @@ struct arm_boot_info {
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/* multicore boards that use the default secondary core boot functions
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/* multicore boards that use the default secondary core boot functions
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* can ignore these two function calls. If the default functions won't
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* can ignore these two function calls. If the default functions won't
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* work, then write_secondary_boot() should write a suitable blob of
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* work, then write_secondary_boot() should write a suitable blob of
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* code mimicing the secondary CPU startup process used by the board's
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* code mimicking the secondary CPU startup process used by the board's
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* boot loader/boot ROM code, and secondary_cpu_reset_hook() should
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* boot loader/boot ROM code, and secondary_cpu_reset_hook() should
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* perform any necessary CPU reset handling and set the PC for thei
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* perform any necessary CPU reset handling and set the PC for the
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* secondary CPUs to point at this boot blob.
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* secondary CPUs to point at this boot blob.
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*/
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*/
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void (*write_secondary_boot)(ARMCPU *cpu,
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void (*write_secondary_boot)(ARMCPU *cpu,
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@ -6,7 +6,7 @@ obj-y += cadence_uart.o
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obj-y += cadence_ttc.o
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obj-y += cadence_ttc.o
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obj-y += cadence_gem.o
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obj-y += cadence_gem.o
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obj-y += xilinx_zynq.o zynq_slcr.o
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obj-y += xilinx_zynq.o zynq_slcr.o
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obj-y += arm_gic.o
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obj-y += arm_gic.o arm_gic_common.o
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obj-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
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obj-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
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obj-y += exynos4210_gic.o exynos4210_combiner.o exynos4210.o
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obj-y += exynos4210_gic.o exynos4210_combiner.o exynos4210.o
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obj-y += exynos4_boards.o exynos4210_uart.o exynos4210_pwm.o
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obj-y += exynos4_boards.o exynos4210_uart.o exynos4210_pwm.o
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@ -123,6 +123,8 @@ static int mpcore_priv_init(SysBusDevice *dev)
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s->gic = qdev_create(NULL, "arm_gic");
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s->gic = qdev_create(NULL, "arm_gic");
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qdev_prop_set_uint32(s->gic, "num-cpu", s->num_cpu);
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qdev_prop_set_uint32(s->gic, "num-cpu", s->num_cpu);
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qdev_prop_set_uint32(s->gic, "num-irq", s->num_irq);
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qdev_prop_set_uint32(s->gic, "num-irq", s->num_irq);
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/* Request the legacy 11MPCore GIC behaviour: */
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qdev_prop_set_uint32(s->gic, "revision", 0);
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qdev_init_nofail(s->gic);
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qdev_init_nofail(s->gic);
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/* Pass through outbound IRQ lines from the GIC */
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/* Pass through outbound IRQ lines from the GIC */
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@ -242,11 +242,13 @@ static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo)
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fprintf(stderr, "couldn't set /memory/reg\n");
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fprintf(stderr, "couldn't set /memory/reg\n");
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}
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}
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if (binfo->kernel_cmdline && *binfo->kernel_cmdline) {
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rc = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
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rc = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
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binfo->kernel_cmdline);
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binfo->kernel_cmdline);
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if (rc < 0) {
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if (rc < 0) {
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fprintf(stderr, "couldn't set /chosen/bootargs\n");
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fprintf(stderr, "couldn't set /chosen/bootargs\n");
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}
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}
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}
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if (binfo->initrd_size) {
|
if (binfo->initrd_size) {
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rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
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rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
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|
|
346
hw/arm_gic.c
346
hw/arm_gic.c
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@ -19,17 +19,7 @@
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*/
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*/
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#include "sysbus.h"
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#include "sysbus.h"
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#include "arm_gic_internal.h"
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/* Maximum number of possible interrupts, determined by the GIC architecture */
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#define GIC_MAXIRQ 1020
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/* First 32 are private to each CPU (SGIs and PPIs). */
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#define GIC_INTERNAL 32
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/* Maximum number of possible CPU interfaces, determined by GIC architecture */
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#ifdef NVIC
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#define NCPU 1
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#else
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#define NCPU 8
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#endif
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|
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//#define DEBUG_GIC
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//#define DEBUG_GIC
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|
||||||
|
@ -40,114 +30,23 @@ do { printf("arm_gic: " fmt , ## __VA_ARGS__); } while (0)
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#define DPRINTF(fmt, ...) do {} while(0)
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#define DPRINTF(fmt, ...) do {} while(0)
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#endif
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#endif
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|
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#ifdef NVIC
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static const uint8_t gic_id[] = {
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static const uint8_t gic_id[] =
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0x90, 0x13, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1
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{ 0x00, 0xb0, 0x1b, 0x00, 0x0d, 0xe0, 0x05, 0xb1 };
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};
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/* The NVIC has 16 internal vectors. However these are not exposed
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|
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through the normal GIC interface. */
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#define GIC_BASE_IRQ 32
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|
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#else
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static const uint8_t gic_id[] =
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|
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{ 0x90, 0x13, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
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|
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#define GIC_BASE_IRQ 0
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|
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#endif
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|
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#define FROM_SYSBUSGIC(type, dev) \
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|
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DO_UPCAST(type, gic, FROM_SYSBUS(gic_state, dev))
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typedef struct gic_irq_state
|
|
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{
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|
||||||
/* The enable bits are only banked for per-cpu interrupts. */
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|
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unsigned enabled:NCPU;
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|
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unsigned pending:NCPU;
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|
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unsigned active:NCPU;
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|
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unsigned level:NCPU;
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unsigned model:1; /* 0 = N:N, 1 = 1:N */
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|
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unsigned trigger:1; /* nonzero = edge triggered. */
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|
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} gic_irq_state;
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||||||
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#define ALL_CPU_MASK ((unsigned)(((1 << NCPU) - 1)))
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|
||||||
#if NCPU > 1
|
|
||||||
#define NUM_CPU(s) ((s)->num_cpu)
|
#define NUM_CPU(s) ((s)->num_cpu)
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#else
|
|
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#define NUM_CPU(s) 1
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|
||||||
#endif
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|
||||||
|
|
||||||
#define GIC_SET_ENABLED(irq, cm) s->irq_state[irq].enabled |= (cm)
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|
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#define GIC_CLEAR_ENABLED(irq, cm) s->irq_state[irq].enabled &= ~(cm)
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|
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#define GIC_TEST_ENABLED(irq, cm) ((s->irq_state[irq].enabled & (cm)) != 0)
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|
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#define GIC_SET_PENDING(irq, cm) s->irq_state[irq].pending |= (cm)
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|
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#define GIC_CLEAR_PENDING(irq, cm) s->irq_state[irq].pending &= ~(cm)
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|
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#define GIC_TEST_PENDING(irq, cm) ((s->irq_state[irq].pending & (cm)) != 0)
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|
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#define GIC_SET_ACTIVE(irq, cm) s->irq_state[irq].active |= (cm)
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|
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#define GIC_CLEAR_ACTIVE(irq, cm) s->irq_state[irq].active &= ~(cm)
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|
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#define GIC_TEST_ACTIVE(irq, cm) ((s->irq_state[irq].active & (cm)) != 0)
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|
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#define GIC_SET_MODEL(irq) s->irq_state[irq].model = 1
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|
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#define GIC_CLEAR_MODEL(irq) s->irq_state[irq].model = 0
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#define GIC_TEST_MODEL(irq) s->irq_state[irq].model
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#define GIC_SET_LEVEL(irq, cm) s->irq_state[irq].level = (cm)
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|
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#define GIC_CLEAR_LEVEL(irq, cm) s->irq_state[irq].level &= ~(cm)
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|
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#define GIC_TEST_LEVEL(irq, cm) ((s->irq_state[irq].level & (cm)) != 0)
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|
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#define GIC_SET_TRIGGER(irq) s->irq_state[irq].trigger = 1
|
|
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#define GIC_CLEAR_TRIGGER(irq) s->irq_state[irq].trigger = 0
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|
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#define GIC_TEST_TRIGGER(irq) s->irq_state[irq].trigger
|
|
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#define GIC_GET_PRIORITY(irq, cpu) (((irq) < GIC_INTERNAL) ? \
|
|
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s->priority1[irq][cpu] : \
|
|
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s->priority2[(irq) - GIC_INTERNAL])
|
|
||||||
#ifdef NVIC
|
|
||||||
#define GIC_TARGET(irq) 1
|
|
||||||
#else
|
|
||||||
#define GIC_TARGET(irq) s->irq_target[irq]
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|
||||||
#endif
|
|
||||||
|
|
||||||
typedef struct gic_state
|
|
||||||
{
|
|
||||||
SysBusDevice busdev;
|
|
||||||
qemu_irq parent_irq[NCPU];
|
|
||||||
int enabled;
|
|
||||||
int cpu_enabled[NCPU];
|
|
||||||
|
|
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gic_irq_state irq_state[GIC_MAXIRQ];
|
|
||||||
#ifndef NVIC
|
|
||||||
int irq_target[GIC_MAXIRQ];
|
|
||||||
#endif
|
|
||||||
int priority1[GIC_INTERNAL][NCPU];
|
|
||||||
int priority2[GIC_MAXIRQ - GIC_INTERNAL];
|
|
||||||
int last_active[GIC_MAXIRQ][NCPU];
|
|
||||||
|
|
||||||
int priority_mask[NCPU];
|
|
||||||
int running_irq[NCPU];
|
|
||||||
int running_priority[NCPU];
|
|
||||||
int current_pending[NCPU];
|
|
||||||
|
|
||||||
#if NCPU > 1
|
|
||||||
uint32_t num_cpu;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
MemoryRegion iomem; /* Distributor */
|
|
||||||
#ifndef NVIC
|
|
||||||
/* This is just so we can have an opaque pointer which identifies
|
|
||||||
* both this GIC and which CPU interface we should be accessing.
|
|
||||||
*/
|
|
||||||
struct gic_state *backref[NCPU];
|
|
||||||
MemoryRegion cpuiomem[NCPU+1]; /* CPU interfaces */
|
|
||||||
#endif
|
|
||||||
uint32_t num_irq;
|
|
||||||
} gic_state;
|
|
||||||
|
|
||||||
static inline int gic_get_current_cpu(gic_state *s)
|
static inline int gic_get_current_cpu(gic_state *s)
|
||||||
{
|
{
|
||||||
#if NCPU > 1
|
|
||||||
if (s->num_cpu > 1) {
|
if (s->num_cpu > 1) {
|
||||||
return cpu_single_env->cpu_index;
|
return cpu_single_env->cpu_index;
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* TODO: Many places that call this routine could be optimized. */
|
/* TODO: Many places that call this routine could be optimized. */
|
||||||
/* Update interrupt status after enabled or pending bits have been changed. */
|
/* Update interrupt status after enabled or pending bits have been changed. */
|
||||||
static void gic_update(gic_state *s)
|
void gic_update(gic_state *s)
|
||||||
{
|
{
|
||||||
int best_irq;
|
int best_irq;
|
||||||
int best_prio;
|
int best_prio;
|
||||||
|
@ -185,8 +84,7 @@ static void gic_update(gic_state *s)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef NVIC
|
void gic_set_pending_private(gic_state *s, int cpu, int irq)
|
||||||
static void gic_set_pending_private(gic_state *s, int cpu, int irq)
|
|
||||||
{
|
{
|
||||||
int cm = 1 << cpu;
|
int cm = 1 << cpu;
|
||||||
|
|
||||||
|
@ -197,7 +95,6 @@ static void gic_set_pending_private(gic_state *s, int cpu, int irq)
|
||||||
GIC_SET_PENDING(irq, cm);
|
GIC_SET_PENDING(irq, cm);
|
||||||
gic_update(s);
|
gic_update(s);
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Process a change in an external IRQ input. */
|
/* Process a change in an external IRQ input. */
|
||||||
static void gic_set_irq(void *opaque, int irq, int level)
|
static void gic_set_irq(void *opaque, int irq, int level)
|
||||||
|
@ -251,7 +148,7 @@ static void gic_set_running_irq(gic_state *s, int cpu, int irq)
|
||||||
gic_update(s);
|
gic_update(s);
|
||||||
}
|
}
|
||||||
|
|
||||||
static uint32_t gic_acknowledge_irq(gic_state *s, int cpu)
|
uint32_t gic_acknowledge_irq(gic_state *s, int cpu)
|
||||||
{
|
{
|
||||||
int new_irq;
|
int new_irq;
|
||||||
int cm = 1 << cpu;
|
int cm = 1 << cpu;
|
||||||
|
@ -270,7 +167,7 @@ static uint32_t gic_acknowledge_irq(gic_state *s, int cpu)
|
||||||
return new_irq;
|
return new_irq;
|
||||||
}
|
}
|
||||||
|
|
||||||
static void gic_complete_irq(gic_state * s, int cpu, int irq)
|
void gic_complete_irq(gic_state *s, int cpu, int irq)
|
||||||
{
|
{
|
||||||
int update = 0;
|
int update = 0;
|
||||||
int cm = 1 << cpu;
|
int cm = 1 << cpu;
|
||||||
|
@ -328,7 +225,6 @@ static uint32_t gic_dist_readb(void *opaque, target_phys_addr_t offset)
|
||||||
cpu = gic_get_current_cpu(s);
|
cpu = gic_get_current_cpu(s);
|
||||||
cm = 1 << cpu;
|
cm = 1 << cpu;
|
||||||
if (offset < 0x100) {
|
if (offset < 0x100) {
|
||||||
#ifndef NVIC
|
|
||||||
if (offset == 0)
|
if (offset == 0)
|
||||||
return s->enabled;
|
return s->enabled;
|
||||||
if (offset == 4)
|
if (offset == 4)
|
||||||
|
@ -339,7 +235,6 @@ static uint32_t gic_dist_readb(void *opaque, target_phys_addr_t offset)
|
||||||
/* Interrupt Security , RAZ/WI */
|
/* Interrupt Security , RAZ/WI */
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
} else if (offset < 0x200) {
|
} else if (offset < 0x200) {
|
||||||
/* Interrupt Set/Clear Enable. */
|
/* Interrupt Set/Clear Enable. */
|
||||||
|
@ -390,17 +285,22 @@ static uint32_t gic_dist_readb(void *opaque, target_phys_addr_t offset)
|
||||||
if (irq >= s->num_irq)
|
if (irq >= s->num_irq)
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
res = GIC_GET_PRIORITY(irq, cpu);
|
res = GIC_GET_PRIORITY(irq, cpu);
|
||||||
#ifndef NVIC
|
|
||||||
} else if (offset < 0xc00) {
|
} else if (offset < 0xc00) {
|
||||||
/* Interrupt CPU Target. */
|
/* Interrupt CPU Target. */
|
||||||
|
if (s->num_cpu == 1 && s->revision != REV_11MPCORE) {
|
||||||
|
/* For uniprocessor GICs these RAZ/WI */
|
||||||
|
res = 0;
|
||||||
|
} else {
|
||||||
irq = (offset - 0x800) + GIC_BASE_IRQ;
|
irq = (offset - 0x800) + GIC_BASE_IRQ;
|
||||||
if (irq >= s->num_irq)
|
if (irq >= s->num_irq) {
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
|
}
|
||||||
if (irq >= 29 && irq <= 31) {
|
if (irq >= 29 && irq <= 31) {
|
||||||
res = cm;
|
res = cm;
|
||||||
} else {
|
} else {
|
||||||
res = GIC_TARGET(irq);
|
res = GIC_TARGET(irq);
|
||||||
}
|
}
|
||||||
|
}
|
||||||
} else if (offset < 0xf00) {
|
} else if (offset < 0xf00) {
|
||||||
/* Interrupt Configuration. */
|
/* Interrupt Configuration. */
|
||||||
irq = (offset - 0xc00) * 2 + GIC_BASE_IRQ;
|
irq = (offset - 0xc00) * 2 + GIC_BASE_IRQ;
|
||||||
|
@ -413,7 +313,6 @@ static uint32_t gic_dist_readb(void *opaque, target_phys_addr_t offset)
|
||||||
if (GIC_TEST_TRIGGER(irq + i))
|
if (GIC_TEST_TRIGGER(irq + i))
|
||||||
res |= (2 << (i * 2));
|
res |= (2 << (i * 2));
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
} else if (offset < 0xfe0) {
|
} else if (offset < 0xfe0) {
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
} else /* offset >= 0xfe0 */ {
|
} else /* offset >= 0xfe0 */ {
|
||||||
|
@ -440,13 +339,6 @@ static uint32_t gic_dist_readw(void *opaque, target_phys_addr_t offset)
|
||||||
static uint32_t gic_dist_readl(void *opaque, target_phys_addr_t offset)
|
static uint32_t gic_dist_readl(void *opaque, target_phys_addr_t offset)
|
||||||
{
|
{
|
||||||
uint32_t val;
|
uint32_t val;
|
||||||
#ifdef NVIC
|
|
||||||
gic_state *s = (gic_state *)opaque;
|
|
||||||
uint32_t addr;
|
|
||||||
addr = offset;
|
|
||||||
if (addr < 0x100 || addr > 0xd00)
|
|
||||||
return nvic_readl(s, addr);
|
|
||||||
#endif
|
|
||||||
val = gic_dist_readw(opaque, offset);
|
val = gic_dist_readw(opaque, offset);
|
||||||
val |= gic_dist_readw(opaque, offset + 2) << 16;
|
val |= gic_dist_readw(opaque, offset + 2) << 16;
|
||||||
return val;
|
return val;
|
||||||
|
@ -462,9 +354,6 @@ static void gic_dist_writeb(void *opaque, target_phys_addr_t offset,
|
||||||
|
|
||||||
cpu = gic_get_current_cpu(s);
|
cpu = gic_get_current_cpu(s);
|
||||||
if (offset < 0x100) {
|
if (offset < 0x100) {
|
||||||
#ifdef NVIC
|
|
||||||
goto bad_reg;
|
|
||||||
#else
|
|
||||||
if (offset == 0) {
|
if (offset == 0) {
|
||||||
s->enabled = (value & 1);
|
s->enabled = (value & 1);
|
||||||
DPRINTF("Distribution %sabled\n", s->enabled ? "En" : "Dis");
|
DPRINTF("Distribution %sabled\n", s->enabled ? "En" : "Dis");
|
||||||
|
@ -475,7 +364,6 @@ static void gic_dist_writeb(void *opaque, target_phys_addr_t offset,
|
||||||
} else {
|
} else {
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
} else if (offset < 0x180) {
|
} else if (offset < 0x180) {
|
||||||
/* Interrupt Set Enable. */
|
/* Interrupt Set Enable. */
|
||||||
irq = (offset - 0x100) * 8 + GIC_BASE_IRQ;
|
irq = (offset - 0x100) * 8 + GIC_BASE_IRQ;
|
||||||
|
@ -557,17 +445,22 @@ static void gic_dist_writeb(void *opaque, target_phys_addr_t offset,
|
||||||
} else {
|
} else {
|
||||||
s->priority2[irq - GIC_INTERNAL] = value;
|
s->priority2[irq - GIC_INTERNAL] = value;
|
||||||
}
|
}
|
||||||
#ifndef NVIC
|
|
||||||
} else if (offset < 0xc00) {
|
} else if (offset < 0xc00) {
|
||||||
/* Interrupt CPU Target. */
|
/* Interrupt CPU Target. RAZ/WI on uniprocessor GICs, with the
|
||||||
|
* annoying exception of the 11MPCore's GIC.
|
||||||
|
*/
|
||||||
|
if (s->num_cpu != 1 || s->revision == REV_11MPCORE) {
|
||||||
irq = (offset - 0x800) + GIC_BASE_IRQ;
|
irq = (offset - 0x800) + GIC_BASE_IRQ;
|
||||||
if (irq >= s->num_irq)
|
if (irq >= s->num_irq) {
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
if (irq < 29)
|
}
|
||||||
|
if (irq < 29) {
|
||||||
value = 0;
|
value = 0;
|
||||||
else if (irq < GIC_INTERNAL)
|
} else if (irq < GIC_INTERNAL) {
|
||||||
value = ALL_CPU_MASK;
|
value = ALL_CPU_MASK;
|
||||||
|
}
|
||||||
s->irq_target[irq] = value & ALL_CPU_MASK;
|
s->irq_target[irq] = value & ALL_CPU_MASK;
|
||||||
|
}
|
||||||
} else if (offset < 0xf00) {
|
} else if (offset < 0xf00) {
|
||||||
/* Interrupt Configuration. */
|
/* Interrupt Configuration. */
|
||||||
irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;
|
irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;
|
||||||
|
@ -587,7 +480,6 @@ static void gic_dist_writeb(void *opaque, target_phys_addr_t offset,
|
||||||
GIC_CLEAR_TRIGGER(irq + i);
|
GIC_CLEAR_TRIGGER(irq + i);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
} else {
|
} else {
|
||||||
/* 0xf00 is only handled for 32-bit writes. */
|
/* 0xf00 is only handled for 32-bit writes. */
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
|
@ -609,14 +501,6 @@ static void gic_dist_writel(void *opaque, target_phys_addr_t offset,
|
||||||
uint32_t value)
|
uint32_t value)
|
||||||
{
|
{
|
||||||
gic_state *s = (gic_state *)opaque;
|
gic_state *s = (gic_state *)opaque;
|
||||||
#ifdef NVIC
|
|
||||||
uint32_t addr;
|
|
||||||
addr = offset;
|
|
||||||
if (addr < 0x100 || (addr > 0xd00 && addr != 0xf00)) {
|
|
||||||
nvic_writel(s, addr, value);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
if (offset == 0xf00) {
|
if (offset == 0xf00) {
|
||||||
int cpu;
|
int cpu;
|
||||||
int irq;
|
int irq;
|
||||||
|
@ -655,7 +539,6 @@ static const MemoryRegionOps gic_dist_ops = {
|
||||||
.endianness = DEVICE_NATIVE_ENDIAN,
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
||||||
};
|
};
|
||||||
|
|
||||||
#ifndef NVIC
|
|
||||||
static uint32_t gic_cpu_read(gic_state *s, int cpu, int offset)
|
static uint32_t gic_cpu_read(gic_state *s, int cpu, int offset)
|
||||||
{
|
{
|
||||||
switch (offset) {
|
switch (offset) {
|
||||||
|
@ -747,141 +630,12 @@ static const MemoryRegionOps gic_cpu_ops = {
|
||||||
.write = gic_do_cpu_write,
|
.write = gic_do_cpu_write,
|
||||||
.endianness = DEVICE_NATIVE_ENDIAN,
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
||||||
};
|
};
|
||||||
#endif
|
|
||||||
|
|
||||||
static void gic_reset(DeviceState *dev)
|
void gic_init_irqs_and_distributor(gic_state *s, int num_irq)
|
||||||
{
|
|
||||||
gic_state *s = FROM_SYSBUS(gic_state, sysbus_from_qdev(dev));
|
|
||||||
int i;
|
|
||||||
memset(s->irq_state, 0, GIC_MAXIRQ * sizeof(gic_irq_state));
|
|
||||||
for (i = 0 ; i < NUM_CPU(s); i++) {
|
|
||||||
s->priority_mask[i] = 0xf0;
|
|
||||||
s->current_pending[i] = 1023;
|
|
||||||
s->running_irq[i] = 1023;
|
|
||||||
s->running_priority[i] = 0x100;
|
|
||||||
#ifdef NVIC
|
|
||||||
/* The NVIC doesn't have per-cpu interfaces, so enable by default. */
|
|
||||||
s->cpu_enabled[i] = 1;
|
|
||||||
#else
|
|
||||||
s->cpu_enabled[i] = 0;
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
for (i = 0; i < 16; i++) {
|
|
||||||
GIC_SET_ENABLED(i, ALL_CPU_MASK);
|
|
||||||
GIC_SET_TRIGGER(i);
|
|
||||||
}
|
|
||||||
#ifdef NVIC
|
|
||||||
/* The NVIC is always enabled. */
|
|
||||||
s->enabled = 1;
|
|
||||||
#else
|
|
||||||
s->enabled = 0;
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
static void gic_save(QEMUFile *f, void *opaque)
|
|
||||||
{
|
|
||||||
gic_state *s = (gic_state *)opaque;
|
|
||||||
int i;
|
|
||||||
int j;
|
|
||||||
|
|
||||||
qemu_put_be32(f, s->enabled);
|
|
||||||
for (i = 0; i < NUM_CPU(s); i++) {
|
|
||||||
qemu_put_be32(f, s->cpu_enabled[i]);
|
|
||||||
for (j = 0; j < GIC_INTERNAL; j++)
|
|
||||||
qemu_put_be32(f, s->priority1[j][i]);
|
|
||||||
for (j = 0; j < s->num_irq; j++)
|
|
||||||
qemu_put_be32(f, s->last_active[j][i]);
|
|
||||||
qemu_put_be32(f, s->priority_mask[i]);
|
|
||||||
qemu_put_be32(f, s->running_irq[i]);
|
|
||||||
qemu_put_be32(f, s->running_priority[i]);
|
|
||||||
qemu_put_be32(f, s->current_pending[i]);
|
|
||||||
}
|
|
||||||
for (i = 0; i < s->num_irq - GIC_INTERNAL; i++) {
|
|
||||||
qemu_put_be32(f, s->priority2[i]);
|
|
||||||
}
|
|
||||||
for (i = 0; i < s->num_irq; i++) {
|
|
||||||
#ifndef NVIC
|
|
||||||
qemu_put_be32(f, s->irq_target[i]);
|
|
||||||
#endif
|
|
||||||
qemu_put_byte(f, s->irq_state[i].enabled);
|
|
||||||
qemu_put_byte(f, s->irq_state[i].pending);
|
|
||||||
qemu_put_byte(f, s->irq_state[i].active);
|
|
||||||
qemu_put_byte(f, s->irq_state[i].level);
|
|
||||||
qemu_put_byte(f, s->irq_state[i].model);
|
|
||||||
qemu_put_byte(f, s->irq_state[i].trigger);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static int gic_load(QEMUFile *f, void *opaque, int version_id)
|
|
||||||
{
|
|
||||||
gic_state *s = (gic_state *)opaque;
|
|
||||||
int i;
|
|
||||||
int j;
|
|
||||||
|
|
||||||
if (version_id != 2)
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
s->enabled = qemu_get_be32(f);
|
|
||||||
for (i = 0; i < NUM_CPU(s); i++) {
|
|
||||||
s->cpu_enabled[i] = qemu_get_be32(f);
|
|
||||||
for (j = 0; j < GIC_INTERNAL; j++)
|
|
||||||
s->priority1[j][i] = qemu_get_be32(f);
|
|
||||||
for (j = 0; j < s->num_irq; j++)
|
|
||||||
s->last_active[j][i] = qemu_get_be32(f);
|
|
||||||
s->priority_mask[i] = qemu_get_be32(f);
|
|
||||||
s->running_irq[i] = qemu_get_be32(f);
|
|
||||||
s->running_priority[i] = qemu_get_be32(f);
|
|
||||||
s->current_pending[i] = qemu_get_be32(f);
|
|
||||||
}
|
|
||||||
for (i = 0; i < s->num_irq - GIC_INTERNAL; i++) {
|
|
||||||
s->priority2[i] = qemu_get_be32(f);
|
|
||||||
}
|
|
||||||
for (i = 0; i < s->num_irq; i++) {
|
|
||||||
#ifndef NVIC
|
|
||||||
s->irq_target[i] = qemu_get_be32(f);
|
|
||||||
#endif
|
|
||||||
s->irq_state[i].enabled = qemu_get_byte(f);
|
|
||||||
s->irq_state[i].pending = qemu_get_byte(f);
|
|
||||||
s->irq_state[i].active = qemu_get_byte(f);
|
|
||||||
s->irq_state[i].level = qemu_get_byte(f);
|
|
||||||
s->irq_state[i].model = qemu_get_byte(f);
|
|
||||||
s->irq_state[i].trigger = qemu_get_byte(f);
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#if NCPU > 1
|
|
||||||
static void gic_init(gic_state *s, int num_cpu, int num_irq)
|
|
||||||
#else
|
|
||||||
static void gic_init(gic_state *s, int num_irq)
|
|
||||||
#endif
|
|
||||||
{
|
{
|
||||||
int i;
|
int i;
|
||||||
|
|
||||||
#if NCPU > 1
|
|
||||||
s->num_cpu = num_cpu;
|
|
||||||
if (s->num_cpu > NCPU) {
|
|
||||||
hw_error("requested %u CPUs exceeds GIC maximum %d\n",
|
|
||||||
num_cpu, NCPU);
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
s->num_irq = num_irq + GIC_BASE_IRQ;
|
|
||||||
if (s->num_irq > GIC_MAXIRQ) {
|
|
||||||
hw_error("requested %u interrupt lines exceeds GIC maximum %d\n",
|
|
||||||
num_irq, GIC_MAXIRQ);
|
|
||||||
}
|
|
||||||
/* ITLinesNumber is represented as (N / 32) - 1 (see
|
|
||||||
* gic_dist_readb) so this is an implementation imposed
|
|
||||||
* restriction, not an architectural one:
|
|
||||||
*/
|
|
||||||
if (s->num_irq < 32 || (s->num_irq % 32)) {
|
|
||||||
hw_error("%d interrupt lines unsupported: not divisible by 32\n",
|
|
||||||
num_irq);
|
|
||||||
}
|
|
||||||
|
|
||||||
i = s->num_irq - GIC_INTERNAL;
|
i = s->num_irq - GIC_INTERNAL;
|
||||||
#ifndef NVIC
|
|
||||||
/* For the GIC, also expose incoming GPIO lines for PPIs for each CPU.
|
/* For the GIC, also expose incoming GPIO lines for PPIs for each CPU.
|
||||||
* GPIO array layout is thus:
|
* GPIO array layout is thus:
|
||||||
* [0..N-1] SPIs
|
* [0..N-1] SPIs
|
||||||
|
@ -889,14 +643,27 @@ static void gic_init(gic_state *s, int num_irq)
|
||||||
* [N+32..N+63] PPIs for CPU 1
|
* [N+32..N+63] PPIs for CPU 1
|
||||||
* ...
|
* ...
|
||||||
*/
|
*/
|
||||||
i += (GIC_INTERNAL * num_cpu);
|
if (s->revision != REV_NVIC) {
|
||||||
#endif
|
i += (GIC_INTERNAL * s->num_cpu);
|
||||||
|
}
|
||||||
qdev_init_gpio_in(&s->busdev.qdev, gic_set_irq, i);
|
qdev_init_gpio_in(&s->busdev.qdev, gic_set_irq, i);
|
||||||
for (i = 0; i < NUM_CPU(s); i++) {
|
for (i = 0; i < NUM_CPU(s); i++) {
|
||||||
sysbus_init_irq(&s->busdev, &s->parent_irq[i]);
|
sysbus_init_irq(&s->busdev, &s->parent_irq[i]);
|
||||||
}
|
}
|
||||||
memory_region_init_io(&s->iomem, &gic_dist_ops, s, "gic_dist", 0x1000);
|
memory_region_init_io(&s->iomem, &gic_dist_ops, s, "gic_dist", 0x1000);
|
||||||
#ifndef NVIC
|
}
|
||||||
|
|
||||||
|
static int arm_gic_init(SysBusDevice *dev)
|
||||||
|
{
|
||||||
|
/* Device instance init function for the GIC sysbus device */
|
||||||
|
int i;
|
||||||
|
gic_state *s = FROM_SYSBUS(gic_state, dev);
|
||||||
|
ARMGICClass *agc = ARM_GIC_GET_CLASS(s);
|
||||||
|
|
||||||
|
agc->parent_init(dev);
|
||||||
|
|
||||||
|
gic_init_irqs_and_distributor(s, s->num_irq);
|
||||||
|
|
||||||
/* Memory regions for the CPU interfaces (NVIC doesn't have these):
|
/* Memory regions for the CPU interfaces (NVIC doesn't have these):
|
||||||
* a region for "CPU interface for this core", then a region for
|
* a region for "CPU interface for this core", then a region for
|
||||||
* "CPU interface for core 0", "for core 1", ...
|
* "CPU interface for core 0", "for core 1", ...
|
||||||
|
@ -912,19 +679,6 @@ static void gic_init(gic_state *s, int num_irq)
|
||||||
memory_region_init_io(&s->cpuiomem[i+1], &gic_cpu_ops, &s->backref[i],
|
memory_region_init_io(&s->cpuiomem[i+1], &gic_cpu_ops, &s->backref[i],
|
||||||
"gic_cpu", 0x100);
|
"gic_cpu", 0x100);
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
|
|
||||||
register_savevm(NULL, "arm_gic", -1, 2, gic_save, gic_load, s);
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifndef NVIC
|
|
||||||
|
|
||||||
static int arm_gic_init(SysBusDevice *dev)
|
|
||||||
{
|
|
||||||
/* Device instance init function for the GIC sysbus device */
|
|
||||||
int i;
|
|
||||||
gic_state *s = FROM_SYSBUS(gic_state, dev);
|
|
||||||
gic_init(s, s->num_cpu, s->num_irq);
|
|
||||||
/* Distributor */
|
/* Distributor */
|
||||||
sysbus_init_mmio(dev, &s->iomem);
|
sysbus_init_mmio(dev, &s->iomem);
|
||||||
/* cpu interfaces (one for "current cpu" plus one per cpu) */
|
/* cpu interfaces (one for "current cpu" plus one per cpu) */
|
||||||
|
@ -934,25 +688,19 @@ static int arm_gic_init(SysBusDevice *dev)
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
static Property arm_gic_properties[] = {
|
|
||||||
DEFINE_PROP_UINT32("num-cpu", gic_state, num_cpu, 1),
|
|
||||||
DEFINE_PROP_UINT32("num-irq", gic_state, num_irq, 32),
|
|
||||||
DEFINE_PROP_END_OF_LIST(),
|
|
||||||
};
|
|
||||||
|
|
||||||
static void arm_gic_class_init(ObjectClass *klass, void *data)
|
static void arm_gic_class_init(ObjectClass *klass, void *data)
|
||||||
{
|
{
|
||||||
DeviceClass *dc = DEVICE_CLASS(klass);
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||||
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
|
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
|
||||||
|
ARMGICClass *agc = ARM_GIC_CLASS(klass);
|
||||||
|
agc->parent_init = sbc->init;
|
||||||
sbc->init = arm_gic_init;
|
sbc->init = arm_gic_init;
|
||||||
dc->props = arm_gic_properties;
|
|
||||||
dc->reset = gic_reset;
|
|
||||||
dc->no_user = 1;
|
dc->no_user = 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
static TypeInfo arm_gic_info = {
|
static TypeInfo arm_gic_info = {
|
||||||
.name = "arm_gic",
|
.name = TYPE_ARM_GIC,
|
||||||
.parent = TYPE_SYS_BUS_DEVICE,
|
.parent = TYPE_ARM_GIC_COMMON,
|
||||||
.instance_size = sizeof(gic_state),
|
.instance_size = sizeof(gic_state),
|
||||||
.class_init = arm_gic_class_init,
|
.class_init = arm_gic_class_init,
|
||||||
};
|
};
|
||||||
|
@ -963,5 +711,3 @@ static void arm_gic_register_types(void)
|
||||||
}
|
}
|
||||||
|
|
||||||
type_init(arm_gic_register_types)
|
type_init(arm_gic_register_types)
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
184
hw/arm_gic_common.c
Normal file
184
hw/arm_gic_common.c
Normal file
|
@ -0,0 +1,184 @@
|
||||||
|
/*
|
||||||
|
* ARM GIC support - common bits of emulated and KVM kernel model
|
||||||
|
*
|
||||||
|
* Copyright (c) 2012 Linaro Limited
|
||||||
|
* Written by Peter Maydell
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License along
|
||||||
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "arm_gic_internal.h"
|
||||||
|
|
||||||
|
static void gic_save(QEMUFile *f, void *opaque)
|
||||||
|
{
|
||||||
|
gic_state *s = (gic_state *)opaque;
|
||||||
|
int i;
|
||||||
|
int j;
|
||||||
|
|
||||||
|
qemu_put_be32(f, s->enabled);
|
||||||
|
for (i = 0; i < s->num_cpu; i++) {
|
||||||
|
qemu_put_be32(f, s->cpu_enabled[i]);
|
||||||
|
for (j = 0; j < GIC_INTERNAL; j++) {
|
||||||
|
qemu_put_be32(f, s->priority1[j][i]);
|
||||||
|
}
|
||||||
|
for (j = 0; j < s->num_irq; j++) {
|
||||||
|
qemu_put_be32(f, s->last_active[j][i]);
|
||||||
|
}
|
||||||
|
qemu_put_be32(f, s->priority_mask[i]);
|
||||||
|
qemu_put_be32(f, s->running_irq[i]);
|
||||||
|
qemu_put_be32(f, s->running_priority[i]);
|
||||||
|
qemu_put_be32(f, s->current_pending[i]);
|
||||||
|
}
|
||||||
|
for (i = 0; i < s->num_irq - GIC_INTERNAL; i++) {
|
||||||
|
qemu_put_be32(f, s->priority2[i]);
|
||||||
|
}
|
||||||
|
for (i = 0; i < s->num_irq; i++) {
|
||||||
|
qemu_put_be32(f, s->irq_target[i]);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].enabled);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].pending);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].active);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].level);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].model);
|
||||||
|
qemu_put_byte(f, s->irq_state[i].trigger);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int gic_load(QEMUFile *f, void *opaque, int version_id)
|
||||||
|
{
|
||||||
|
gic_state *s = (gic_state *)opaque;
|
||||||
|
int i;
|
||||||
|
int j;
|
||||||
|
|
||||||
|
if (version_id != 3) {
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
s->enabled = qemu_get_be32(f);
|
||||||
|
for (i = 0; i < s->num_cpu; i++) {
|
||||||
|
s->cpu_enabled[i] = qemu_get_be32(f);
|
||||||
|
for (j = 0; j < GIC_INTERNAL; j++) {
|
||||||
|
s->priority1[j][i] = qemu_get_be32(f);
|
||||||
|
}
|
||||||
|
for (j = 0; j < s->num_irq; j++) {
|
||||||
|
s->last_active[j][i] = qemu_get_be32(f);
|
||||||
|
}
|
||||||
|
s->priority_mask[i] = qemu_get_be32(f);
|
||||||
|
s->running_irq[i] = qemu_get_be32(f);
|
||||||
|
s->running_priority[i] = qemu_get_be32(f);
|
||||||
|
s->current_pending[i] = qemu_get_be32(f);
|
||||||
|
}
|
||||||
|
for (i = 0; i < s->num_irq - GIC_INTERNAL; i++) {
|
||||||
|
s->priority2[i] = qemu_get_be32(f);
|
||||||
|
}
|
||||||
|
for (i = 0; i < s->num_irq; i++) {
|
||||||
|
s->irq_target[i] = qemu_get_be32(f);
|
||||||
|
s->irq_state[i].enabled = qemu_get_byte(f);
|
||||||
|
s->irq_state[i].pending = qemu_get_byte(f);
|
||||||
|
s->irq_state[i].active = qemu_get_byte(f);
|
||||||
|
s->irq_state[i].level = qemu_get_byte(f);
|
||||||
|
s->irq_state[i].model = qemu_get_byte(f);
|
||||||
|
s->irq_state[i].trigger = qemu_get_byte(f);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int arm_gic_common_init(SysBusDevice *dev)
|
||||||
|
{
|
||||||
|
gic_state *s = FROM_SYSBUS(gic_state, dev);
|
||||||
|
int num_irq = s->num_irq;
|
||||||
|
|
||||||
|
if (s->num_cpu > NCPU) {
|
||||||
|
hw_error("requested %u CPUs exceeds GIC maximum %d\n",
|
||||||
|
s->num_cpu, NCPU);
|
||||||
|
}
|
||||||
|
s->num_irq += GIC_BASE_IRQ;
|
||||||
|
if (s->num_irq > GIC_MAXIRQ) {
|
||||||
|
hw_error("requested %u interrupt lines exceeds GIC maximum %d\n",
|
||||||
|
num_irq, GIC_MAXIRQ);
|
||||||
|
}
|
||||||
|
/* ITLinesNumber is represented as (N / 32) - 1 (see
|
||||||
|
* gic_dist_readb) so this is an implementation imposed
|
||||||
|
* restriction, not an architectural one:
|
||||||
|
*/
|
||||||
|
if (s->num_irq < 32 || (s->num_irq % 32)) {
|
||||||
|
hw_error("%d interrupt lines unsupported: not divisible by 32\n",
|
||||||
|
num_irq);
|
||||||
|
}
|
||||||
|
|
||||||
|
register_savevm(NULL, "arm_gic", -1, 3, gic_save, gic_load, s);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void arm_gic_common_reset(DeviceState *dev)
|
||||||
|
{
|
||||||
|
gic_state *s = FROM_SYSBUS(gic_state, sysbus_from_qdev(dev));
|
||||||
|
int i;
|
||||||
|
memset(s->irq_state, 0, GIC_MAXIRQ * sizeof(gic_irq_state));
|
||||||
|
for (i = 0 ; i < s->num_cpu; i++) {
|
||||||
|
s->priority_mask[i] = 0xf0;
|
||||||
|
s->current_pending[i] = 1023;
|
||||||
|
s->running_irq[i] = 1023;
|
||||||
|
s->running_priority[i] = 0x100;
|
||||||
|
s->cpu_enabled[i] = 0;
|
||||||
|
}
|
||||||
|
for (i = 0; i < 16; i++) {
|
||||||
|
GIC_SET_ENABLED(i, ALL_CPU_MASK);
|
||||||
|
GIC_SET_TRIGGER(i);
|
||||||
|
}
|
||||||
|
if (s->num_cpu == 1) {
|
||||||
|
/* For uniprocessor GICs all interrupts always target the sole CPU */
|
||||||
|
for (i = 0; i < GIC_MAXIRQ; i++) {
|
||||||
|
s->irq_target[i] = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
s->enabled = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static Property arm_gic_common_properties[] = {
|
||||||
|
DEFINE_PROP_UINT32("num-cpu", gic_state, num_cpu, 1),
|
||||||
|
DEFINE_PROP_UINT32("num-irq", gic_state, num_irq, 32),
|
||||||
|
/* Revision can be 1 or 2 for GIC architecture specification
|
||||||
|
* versions 1 or 2, or 0 to indicate the legacy 11MPCore GIC.
|
||||||
|
* (Internally, 0xffffffff also indicates "not a GIC but an NVIC".)
|
||||||
|
*/
|
||||||
|
DEFINE_PROP_UINT32("revision", gic_state, revision, 1),
|
||||||
|
DEFINE_PROP_END_OF_LIST(),
|
||||||
|
};
|
||||||
|
|
||||||
|
static void arm_gic_common_class_init(ObjectClass *klass, void *data)
|
||||||
|
{
|
||||||
|
SysBusDeviceClass *sc = SYS_BUS_DEVICE_CLASS(klass);
|
||||||
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||||
|
dc->reset = arm_gic_common_reset;
|
||||||
|
dc->props = arm_gic_common_properties;
|
||||||
|
dc->no_user = 1;
|
||||||
|
sc->init = arm_gic_common_init;
|
||||||
|
}
|
||||||
|
|
||||||
|
static TypeInfo arm_gic_common_type = {
|
||||||
|
.name = TYPE_ARM_GIC_COMMON,
|
||||||
|
.parent = TYPE_SYS_BUS_DEVICE,
|
||||||
|
.instance_size = sizeof(gic_state),
|
||||||
|
.class_size = sizeof(ARMGICCommonClass),
|
||||||
|
.class_init = arm_gic_common_class_init,
|
||||||
|
.abstract = true,
|
||||||
|
};
|
||||||
|
|
||||||
|
static void register_types(void)
|
||||||
|
{
|
||||||
|
type_register_static(&arm_gic_common_type);
|
||||||
|
}
|
||||||
|
|
||||||
|
type_init(register_types)
|
136
hw/arm_gic_internal.h
Normal file
136
hw/arm_gic_internal.h
Normal file
|
@ -0,0 +1,136 @@
|
||||||
|
/*
|
||||||
|
* ARM GIC support - internal interfaces
|
||||||
|
*
|
||||||
|
* Copyright (c) 2012 Linaro Limited
|
||||||
|
* Written by Peter Maydell
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License along
|
||||||
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef QEMU_ARM_GIC_INTERNAL_H
|
||||||
|
#define QEMU_ARM_GIC_INTERNAL_H
|
||||||
|
|
||||||
|
#include "sysbus.h"
|
||||||
|
|
||||||
|
/* Maximum number of possible interrupts, determined by the GIC architecture */
|
||||||
|
#define GIC_MAXIRQ 1020
|
||||||
|
/* First 32 are private to each CPU (SGIs and PPIs). */
|
||||||
|
#define GIC_INTERNAL 32
|
||||||
|
/* Maximum number of possible CPU interfaces, determined by GIC architecture */
|
||||||
|
#define NCPU 8
|
||||||
|
|
||||||
|
#define ALL_CPU_MASK ((unsigned)(((1 << NCPU) - 1)))
|
||||||
|
|
||||||
|
/* The NVIC has 16 internal vectors. However these are not exposed
|
||||||
|
through the normal GIC interface. */
|
||||||
|
#define GIC_BASE_IRQ ((s->revision == REV_NVIC) ? 32 : 0)
|
||||||
|
|
||||||
|
#define GIC_SET_ENABLED(irq, cm) s->irq_state[irq].enabled |= (cm)
|
||||||
|
#define GIC_CLEAR_ENABLED(irq, cm) s->irq_state[irq].enabled &= ~(cm)
|
||||||
|
#define GIC_TEST_ENABLED(irq, cm) ((s->irq_state[irq].enabled & (cm)) != 0)
|
||||||
|
#define GIC_SET_PENDING(irq, cm) s->irq_state[irq].pending |= (cm)
|
||||||
|
#define GIC_CLEAR_PENDING(irq, cm) s->irq_state[irq].pending &= ~(cm)
|
||||||
|
#define GIC_TEST_PENDING(irq, cm) ((s->irq_state[irq].pending & (cm)) != 0)
|
||||||
|
#define GIC_SET_ACTIVE(irq, cm) s->irq_state[irq].active |= (cm)
|
||||||
|
#define GIC_CLEAR_ACTIVE(irq, cm) s->irq_state[irq].active &= ~(cm)
|
||||||
|
#define GIC_TEST_ACTIVE(irq, cm) ((s->irq_state[irq].active & (cm)) != 0)
|
||||||
|
#define GIC_SET_MODEL(irq) s->irq_state[irq].model = 1
|
||||||
|
#define GIC_CLEAR_MODEL(irq) s->irq_state[irq].model = 0
|
||||||
|
#define GIC_TEST_MODEL(irq) s->irq_state[irq].model
|
||||||
|
#define GIC_SET_LEVEL(irq, cm) s->irq_state[irq].level = (cm)
|
||||||
|
#define GIC_CLEAR_LEVEL(irq, cm) s->irq_state[irq].level &= ~(cm)
|
||||||
|
#define GIC_TEST_LEVEL(irq, cm) ((s->irq_state[irq].level & (cm)) != 0)
|
||||||
|
#define GIC_SET_TRIGGER(irq) s->irq_state[irq].trigger = 1
|
||||||
|
#define GIC_CLEAR_TRIGGER(irq) s->irq_state[irq].trigger = 0
|
||||||
|
#define GIC_TEST_TRIGGER(irq) s->irq_state[irq].trigger
|
||||||
|
#define GIC_GET_PRIORITY(irq, cpu) (((irq) < GIC_INTERNAL) ? \
|
||||||
|
s->priority1[irq][cpu] : \
|
||||||
|
s->priority2[(irq) - GIC_INTERNAL])
|
||||||
|
#define GIC_TARGET(irq) s->irq_target[irq]
|
||||||
|
|
||||||
|
typedef struct gic_irq_state {
|
||||||
|
/* The enable bits are only banked for per-cpu interrupts. */
|
||||||
|
unsigned enabled:NCPU;
|
||||||
|
unsigned pending:NCPU;
|
||||||
|
unsigned active:NCPU;
|
||||||
|
unsigned level:NCPU;
|
||||||
|
unsigned model:1; /* 0 = N:N, 1 = 1:N */
|
||||||
|
unsigned trigger:1; /* nonzero = edge triggered. */
|
||||||
|
} gic_irq_state;
|
||||||
|
|
||||||
|
typedef struct gic_state {
|
||||||
|
SysBusDevice busdev;
|
||||||
|
qemu_irq parent_irq[NCPU];
|
||||||
|
int enabled;
|
||||||
|
int cpu_enabled[NCPU];
|
||||||
|
|
||||||
|
gic_irq_state irq_state[GIC_MAXIRQ];
|
||||||
|
int irq_target[GIC_MAXIRQ];
|
||||||
|
int priority1[GIC_INTERNAL][NCPU];
|
||||||
|
int priority2[GIC_MAXIRQ - GIC_INTERNAL];
|
||||||
|
int last_active[GIC_MAXIRQ][NCPU];
|
||||||
|
|
||||||
|
int priority_mask[NCPU];
|
||||||
|
int running_irq[NCPU];
|
||||||
|
int running_priority[NCPU];
|
||||||
|
int current_pending[NCPU];
|
||||||
|
|
||||||
|
uint32_t num_cpu;
|
||||||
|
|
||||||
|
MemoryRegion iomem; /* Distributor */
|
||||||
|
/* This is just so we can have an opaque pointer which identifies
|
||||||
|
* both this GIC and which CPU interface we should be accessing.
|
||||||
|
*/
|
||||||
|
struct gic_state *backref[NCPU];
|
||||||
|
MemoryRegion cpuiomem[NCPU+1]; /* CPU interfaces */
|
||||||
|
uint32_t num_irq;
|
||||||
|
uint32_t revision;
|
||||||
|
} gic_state;
|
||||||
|
|
||||||
|
/* The special cases for the revision property: */
|
||||||
|
#define REV_11MPCORE 0
|
||||||
|
#define REV_NVIC 0xffffffff
|
||||||
|
|
||||||
|
void gic_set_pending_private(gic_state *s, int cpu, int irq);
|
||||||
|
uint32_t gic_acknowledge_irq(gic_state *s, int cpu);
|
||||||
|
void gic_complete_irq(gic_state *s, int cpu, int irq);
|
||||||
|
void gic_update(gic_state *s);
|
||||||
|
void gic_init_irqs_and_distributor(gic_state *s, int num_irq);
|
||||||
|
|
||||||
|
#define TYPE_ARM_GIC_COMMON "arm_gic_common"
|
||||||
|
#define ARM_GIC_COMMON(obj) \
|
||||||
|
OBJECT_CHECK(gic_state, (obj), TYPE_ARM_GIC_COMMON)
|
||||||
|
#define ARM_GIC_COMMON_CLASS(klass) \
|
||||||
|
OBJECT_CLASS_CHECK(ARMGICCommonClass, (klass), TYPE_ARM_GIC_COMMON)
|
||||||
|
#define ARM_GIC_COMMON_GET_CLASS(obj) \
|
||||||
|
OBJECT_GET_CLASS(ARMGICCommonClass, (obj), TYPE_ARM_GIC_COMMON)
|
||||||
|
|
||||||
|
typedef struct ARMGICCommonClass {
|
||||||
|
SysBusDeviceClass parent_class;
|
||||||
|
} ARMGICCommonClass;
|
||||||
|
|
||||||
|
#define TYPE_ARM_GIC "arm_gic"
|
||||||
|
#define ARM_GIC(obj) \
|
||||||
|
OBJECT_CHECK(gic_state, (obj), TYPE_ARM_GIC)
|
||||||
|
#define ARM_GIC_CLASS(klass) \
|
||||||
|
OBJECT_CLASS_CHECK(ARMGICClass, (klass), TYPE_ARM_GIC)
|
||||||
|
#define ARM_GIC_GET_CLASS(obj) \
|
||||||
|
OBJECT_GET_CLASS(ARMGICClass, (obj), TYPE_ARM_GIC)
|
||||||
|
|
||||||
|
typedef struct ARMGICClass {
|
||||||
|
ARMGICCommonClass parent_class;
|
||||||
|
int (*parent_init)(SysBusDevice *dev);
|
||||||
|
} ARMGICClass;
|
||||||
|
|
||||||
|
#endif /* !QEMU_ARM_GIC_INTERNAL_H */
|
136
hw/armv7m_nvic.c
136
hw/armv7m_nvic.c
|
@ -14,13 +14,7 @@
|
||||||
#include "qemu-timer.h"
|
#include "qemu-timer.h"
|
||||||
#include "arm-misc.h"
|
#include "arm-misc.h"
|
||||||
#include "exec-memory.h"
|
#include "exec-memory.h"
|
||||||
|
#include "arm_gic_internal.h"
|
||||||
#define NVIC 1
|
|
||||||
|
|
||||||
static uint32_t nvic_readl(void *opaque, uint32_t offset);
|
|
||||||
static void nvic_writel(void *opaque, uint32_t offset, uint32_t value);
|
|
||||||
|
|
||||||
#include "arm_gic.c"
|
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
gic_state gic;
|
gic_state gic;
|
||||||
|
@ -30,9 +24,38 @@ typedef struct {
|
||||||
int64_t tick;
|
int64_t tick;
|
||||||
QEMUTimer *timer;
|
QEMUTimer *timer;
|
||||||
} systick;
|
} systick;
|
||||||
|
MemoryRegion sysregmem;
|
||||||
|
MemoryRegion gic_iomem_alias;
|
||||||
|
MemoryRegion container;
|
||||||
uint32_t num_irq;
|
uint32_t num_irq;
|
||||||
} nvic_state;
|
} nvic_state;
|
||||||
|
|
||||||
|
#define TYPE_NVIC "armv7m_nvic"
|
||||||
|
/**
|
||||||
|
* NVICClass:
|
||||||
|
* @parent_reset: the parent class' reset handler.
|
||||||
|
*
|
||||||
|
* A model of the v7M NVIC and System Controller
|
||||||
|
*/
|
||||||
|
typedef struct NVICClass {
|
||||||
|
/*< private >*/
|
||||||
|
ARMGICClass parent_class;
|
||||||
|
/*< public >*/
|
||||||
|
int (*parent_init)(SysBusDevice *dev);
|
||||||
|
void (*parent_reset)(DeviceState *dev);
|
||||||
|
} NVICClass;
|
||||||
|
|
||||||
|
#define NVIC_CLASS(klass) \
|
||||||
|
OBJECT_CLASS_CHECK(NVICClass, (klass), TYPE_NVIC)
|
||||||
|
#define NVIC_GET_CLASS(obj) \
|
||||||
|
OBJECT_GET_CLASS(NVICClass, (obj), TYPE_NVIC)
|
||||||
|
#define NVIC(obj) \
|
||||||
|
OBJECT_CHECK(nvic_state, (obj), TYPE_NVIC)
|
||||||
|
|
||||||
|
static const uint8_t nvic_id[] = {
|
||||||
|
0x00, 0xb0, 0x1b, 0x00, 0x0d, 0xe0, 0x05, 0xb1
|
||||||
|
};
|
||||||
|
|
||||||
/* qemu timers run at 1GHz. We want something closer to 1MHz. */
|
/* qemu timers run at 1GHz. We want something closer to 1MHz. */
|
||||||
#define SYSTICK_SCALE 1000ULL
|
#define SYSTICK_SCALE 1000ULL
|
||||||
|
|
||||||
|
@ -358,12 +381,54 @@ static void nvic_writel(void *opaque, uint32_t offset, uint32_t value)
|
||||||
case 0xd38: /* Bus Fault Address. */
|
case 0xd38: /* Bus Fault Address. */
|
||||||
case 0xd3c: /* Aux Fault Status. */
|
case 0xd3c: /* Aux Fault Status. */
|
||||||
goto bad_reg;
|
goto bad_reg;
|
||||||
|
case 0xf00: /* Software Triggered Interrupt Register */
|
||||||
|
if ((value & 0x1ff) < s->num_irq) {
|
||||||
|
gic_set_pending_private(&s->gic, 0, value & 0x1ff);
|
||||||
|
}
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
bad_reg:
|
bad_reg:
|
||||||
hw_error("NVIC: Bad write offset 0x%x\n", offset);
|
hw_error("NVIC: Bad write offset 0x%x\n", offset);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static uint64_t nvic_sysreg_read(void *opaque, target_phys_addr_t addr,
|
||||||
|
unsigned size)
|
||||||
|
{
|
||||||
|
/* At the moment we only support the ID registers for byte/word access.
|
||||||
|
* This is not strictly correct as a few of the other registers also
|
||||||
|
* allow byte access.
|
||||||
|
*/
|
||||||
|
uint32_t offset = addr;
|
||||||
|
if (offset >= 0xfe0) {
|
||||||
|
if (offset & 3) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return nvic_id[(offset - 0xfe0) >> 2];
|
||||||
|
}
|
||||||
|
if (size == 4) {
|
||||||
|
return nvic_readl(opaque, offset);
|
||||||
|
}
|
||||||
|
hw_error("NVIC: Bad read of size %d at offset 0x%x\n", size, offset);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void nvic_sysreg_write(void *opaque, target_phys_addr_t addr,
|
||||||
|
uint64_t value, unsigned size)
|
||||||
|
{
|
||||||
|
uint32_t offset = addr;
|
||||||
|
if (size == 4) {
|
||||||
|
nvic_writel(opaque, offset, value);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
hw_error("NVIC: Bad write of size %d at offset 0x%x\n", size, offset);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const MemoryRegionOps nvic_sysreg_ops = {
|
||||||
|
.read = nvic_sysreg_read,
|
||||||
|
.write = nvic_sysreg_write,
|
||||||
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
||||||
|
};
|
||||||
|
|
||||||
static const VMStateDescription vmstate_nvic = {
|
static const VMStateDescription vmstate_nvic = {
|
||||||
.name = "armv7m_nvic",
|
.name = "armv7m_nvic",
|
||||||
.version_id = 1,
|
.version_id = 1,
|
||||||
|
@ -380,20 +445,55 @@ static const VMStateDescription vmstate_nvic = {
|
||||||
|
|
||||||
static void armv7m_nvic_reset(DeviceState *dev)
|
static void armv7m_nvic_reset(DeviceState *dev)
|
||||||
{
|
{
|
||||||
nvic_state *s = FROM_SYSBUSGIC(nvic_state, sysbus_from_qdev(dev));
|
nvic_state *s = NVIC(dev);
|
||||||
gic_reset(&s->gic.busdev.qdev);
|
NVICClass *nc = NVIC_GET_CLASS(s);
|
||||||
|
nc->parent_reset(dev);
|
||||||
|
/* Common GIC reset resets to disabled; the NVIC doesn't have
|
||||||
|
* per-CPU interfaces so mark our non-existent CPU interface
|
||||||
|
* as enabled by default.
|
||||||
|
*/
|
||||||
|
s->gic.cpu_enabled[0] = 1;
|
||||||
|
/* The NVIC as a whole is always enabled. */
|
||||||
|
s->gic.enabled = 1;
|
||||||
systick_reset(s);
|
systick_reset(s);
|
||||||
}
|
}
|
||||||
|
|
||||||
static int armv7m_nvic_init(SysBusDevice *dev)
|
static int armv7m_nvic_init(SysBusDevice *dev)
|
||||||
{
|
{
|
||||||
nvic_state *s= FROM_SYSBUSGIC(nvic_state, dev);
|
nvic_state *s = NVIC(dev);
|
||||||
|
NVICClass *nc = NVIC_GET_CLASS(s);
|
||||||
|
|
||||||
/* note that for the M profile gic_init() takes the number of external
|
/* The NVIC always has only one CPU */
|
||||||
* interrupt lines only.
|
s->gic.num_cpu = 1;
|
||||||
|
/* Tell the common code we're an NVIC */
|
||||||
|
s->gic.revision = 0xffffffff;
|
||||||
|
s->gic.num_irq = s->num_irq;
|
||||||
|
nc->parent_init(dev);
|
||||||
|
gic_init_irqs_and_distributor(&s->gic, s->num_irq);
|
||||||
|
/* The NVIC and system controller register area looks like this:
|
||||||
|
* 0..0xff : system control registers, including systick
|
||||||
|
* 0x100..0xcff : GIC-like registers
|
||||||
|
* 0xd00..0xfff : system control registers
|
||||||
|
* We use overlaying to put the GIC like registers
|
||||||
|
* over the top of the system control register region.
|
||||||
*/
|
*/
|
||||||
gic_init(&s->gic, s->num_irq);
|
memory_region_init(&s->container, "nvic", 0x1000);
|
||||||
memory_region_add_subregion(get_system_memory(), 0xe000e000, &s->gic.iomem);
|
/* The system register region goes at the bottom of the priority
|
||||||
|
* stack as it covers the whole page.
|
||||||
|
*/
|
||||||
|
memory_region_init_io(&s->sysregmem, &nvic_sysreg_ops, s,
|
||||||
|
"nvic_sysregs", 0x1000);
|
||||||
|
memory_region_add_subregion(&s->container, 0, &s->sysregmem);
|
||||||
|
/* Alias the GIC region so we can get only the section of it
|
||||||
|
* we need, and layer it on top of the system register region.
|
||||||
|
*/
|
||||||
|
memory_region_init_alias(&s->gic_iomem_alias, "nvic-gic", &s->gic.iomem,
|
||||||
|
0x100, 0xc00);
|
||||||
|
memory_region_add_subregion_overlap(&s->container, 0x100, &s->gic.iomem, 1);
|
||||||
|
/* Map the whole thing into system memory at the location required
|
||||||
|
* by the v7M architecture.
|
||||||
|
*/
|
||||||
|
memory_region_add_subregion(get_system_memory(), 0xe000e000, &s->container);
|
||||||
s->systick.timer = qemu_new_timer_ns(vm_clock, systick_timer_tick, s);
|
s->systick.timer = qemu_new_timer_ns(vm_clock, systick_timer_tick, s);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -409,9 +509,12 @@ static Property armv7m_nvic_properties[] = {
|
||||||
|
|
||||||
static void armv7m_nvic_class_init(ObjectClass *klass, void *data)
|
static void armv7m_nvic_class_init(ObjectClass *klass, void *data)
|
||||||
{
|
{
|
||||||
|
NVICClass *nc = NVIC_CLASS(klass);
|
||||||
DeviceClass *dc = DEVICE_CLASS(klass);
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
||||||
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
|
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
|
||||||
|
|
||||||
|
nc->parent_reset = dc->reset;
|
||||||
|
nc->parent_init = sdc->init;
|
||||||
sdc->init = armv7m_nvic_init;
|
sdc->init = armv7m_nvic_init;
|
||||||
dc->vmsd = &vmstate_nvic;
|
dc->vmsd = &vmstate_nvic;
|
||||||
dc->reset = armv7m_nvic_reset;
|
dc->reset = armv7m_nvic_reset;
|
||||||
|
@ -419,10 +522,11 @@ static void armv7m_nvic_class_init(ObjectClass *klass, void *data)
|
||||||
}
|
}
|
||||||
|
|
||||||
static TypeInfo armv7m_nvic_info = {
|
static TypeInfo armv7m_nvic_info = {
|
||||||
.name = "armv7m_nvic",
|
.name = TYPE_NVIC,
|
||||||
.parent = TYPE_SYS_BUS_DEVICE,
|
.parent = TYPE_ARM_GIC_COMMON,
|
||||||
.instance_size = sizeof(nvic_state),
|
.instance_size = sizeof(nvic_state),
|
||||||
.class_init = armv7m_nvic_class_init,
|
.class_init = armv7m_nvic_class_init,
|
||||||
|
.class_size = sizeof(NVICClass),
|
||||||
};
|
};
|
||||||
|
|
||||||
static void armv7m_nvic_register_types(void)
|
static void armv7m_nvic_register_types(void)
|
||||||
|
|
|
@ -664,7 +664,7 @@ static ssize_t gem_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
|
||||||
*/
|
*/
|
||||||
|
|
||||||
memcpy(rxbuf, buf, size);
|
memcpy(rxbuf, buf, size);
|
||||||
memset(rxbuf + size, 0, sizeof(rxbuf - size));
|
memset(rxbuf + size, 0, sizeof(rxbuf) - size);
|
||||||
rxbuf_ptr = rxbuf;
|
rxbuf_ptr = rxbuf;
|
||||||
crc_val = cpu_to_le32(crc32(0, rxbuf, MAX(size, 60)));
|
crc_val = cpu_to_le32(crc32(0, rxbuf, MAX(size, 60)));
|
||||||
if (size < 60) {
|
if (size < 60) {
|
||||||
|
|
|
@ -405,7 +405,7 @@ static int cadence_ttc_init(SysBusDevice *dev)
|
||||||
int i;
|
int i;
|
||||||
|
|
||||||
for (i = 0; i < 3; ++i) {
|
for (i = 0; i < 3; ++i) {
|
||||||
cadence_timer_init(2500000, &s->timer[i]);
|
cadence_timer_init(133000000, &s->timer[i]);
|
||||||
sysbus_init_irq(dev, &s->timer[i].irq);
|
sysbus_init_irq(dev, &s->timer[i].irq);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -97,11 +97,11 @@ void exynos4210_write_secondary(ARMCPU *cpu,
|
||||||
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
|
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
|
||||||
unsigned long ram_size)
|
unsigned long ram_size)
|
||||||
{
|
{
|
||||||
qemu_irq cpu_irq[4];
|
qemu_irq cpu_irq[EXYNOS4210_NCPUS];
|
||||||
int n;
|
int i, n;
|
||||||
Exynos4210State *s = g_new(Exynos4210State, 1);
|
Exynos4210State *s = g_new(Exynos4210State, 1);
|
||||||
qemu_irq *irqp;
|
qemu_irq *irqp;
|
||||||
qemu_irq gate_irq[EXYNOS4210_IRQ_GATE_NINPUTS];
|
qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS];
|
||||||
unsigned long mem_size;
|
unsigned long mem_size;
|
||||||
DeviceState *dev;
|
DeviceState *dev;
|
||||||
SysBusDevice *busdev;
|
SysBusDevice *busdev;
|
||||||
|
@ -128,16 +128,18 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
|
||||||
s->irq_table = exynos4210_init_irq(&s->irqs);
|
s->irq_table = exynos4210_init_irq(&s->irqs);
|
||||||
|
|
||||||
/* IRQ Gate */
|
/* IRQ Gate */
|
||||||
|
for (i = 0; i < EXYNOS4210_NCPUS; i++) {
|
||||||
dev = qdev_create(NULL, "exynos4210.irq_gate");
|
dev = qdev_create(NULL, "exynos4210.irq_gate");
|
||||||
|
qdev_prop_set_uint32(dev, "n_in", EXYNOS4210_IRQ_GATE_NINPUTS);
|
||||||
qdev_init_nofail(dev);
|
qdev_init_nofail(dev);
|
||||||
/* Get IRQ Gate input in gate_irq */
|
/* Get IRQ Gate input in gate_irq */
|
||||||
for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) {
|
for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) {
|
||||||
gate_irq[n] = qdev_get_gpio_in(dev, n);
|
gate_irq[i][n] = qdev_get_gpio_in(dev, n);
|
||||||
}
|
}
|
||||||
busdev = sysbus_from_qdev(dev);
|
busdev = sysbus_from_qdev(dev);
|
||||||
|
|
||||||
/* Connect IRQ Gate output to cpu_irq */
|
/* Connect IRQ Gate output to cpu_irq */
|
||||||
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
|
sysbus_connect_irq(busdev, 0, cpu_irq[i]);
|
||||||
sysbus_connect_irq(busdev, n, cpu_irq[n]);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Private memory region and Internal GIC */
|
/* Private memory region and Internal GIC */
|
||||||
|
@ -147,7 +149,7 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
|
||||||
busdev = sysbus_from_qdev(dev);
|
busdev = sysbus_from_qdev(dev);
|
||||||
sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR);
|
sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR);
|
||||||
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
|
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
|
||||||
sysbus_connect_irq(busdev, n, gate_irq[n * 2]);
|
sysbus_connect_irq(busdev, n, gate_irq[n][0]);
|
||||||
}
|
}
|
||||||
for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) {
|
for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) {
|
||||||
s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n);
|
s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n);
|
||||||
|
@ -166,7 +168,7 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
|
||||||
/* Map Distributer interface */
|
/* Map Distributer interface */
|
||||||
sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR);
|
sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR);
|
||||||
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
|
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
|
||||||
sysbus_connect_irq(busdev, n, gate_irq[n * 2 + 1]);
|
sysbus_connect_irq(busdev, n, gate_irq[n][1]);
|
||||||
}
|
}
|
||||||
for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) {
|
for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) {
|
||||||
s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n);
|
s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n);
|
||||||
|
|
|
@ -56,7 +56,7 @@
|
||||||
/*
|
/*
|
||||||
* exynos4210 IRQ subsystem stub definitions.
|
* exynos4210 IRQ subsystem stub definitions.
|
||||||
*/
|
*/
|
||||||
#define EXYNOS4210_IRQ_GATE_NINPUTS 8
|
#define EXYNOS4210_IRQ_GATE_NINPUTS 2 /* Internal and External GIC */
|
||||||
|
|
||||||
#define EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ 64
|
#define EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ 64
|
||||||
#define EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ 16
|
#define EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ 16
|
||||||
|
|
|
@ -362,61 +362,64 @@ static void exynos4210_gic_register_types(void)
|
||||||
|
|
||||||
type_init(exynos4210_gic_register_types)
|
type_init(exynos4210_gic_register_types)
|
||||||
|
|
||||||
/*
|
/* IRQ OR Gate struct.
|
||||||
* IRQGate struct.
|
*
|
||||||
* IRQ Gate represents OR gate between GICs to pass IRQ to PIC.
|
* This device models an OR gate. There are n_in input qdev gpio lines and one
|
||||||
|
* output sysbus IRQ line. The output IRQ level is formed as OR between all
|
||||||
|
* gpio inputs.
|
||||||
*/
|
*/
|
||||||
typedef struct {
|
typedef struct {
|
||||||
SysBusDevice busdev;
|
SysBusDevice busdev;
|
||||||
|
|
||||||
qemu_irq pic_irq[EXYNOS4210_NCPUS]; /* output IRQs to PICs */
|
uint32_t n_in; /* inputs amount */
|
||||||
uint32_t gpio_level[EXYNOS4210_IRQ_GATE_NINPUTS]; /* Input levels */
|
uint32_t *level; /* input levels */
|
||||||
|
qemu_irq out; /* output IRQ */
|
||||||
} Exynos4210IRQGateState;
|
} Exynos4210IRQGateState;
|
||||||
|
|
||||||
|
static Property exynos4210_irq_gate_properties[] = {
|
||||||
|
DEFINE_PROP_UINT32("n_in", Exynos4210IRQGateState, n_in, 1),
|
||||||
|
DEFINE_PROP_END_OF_LIST(),
|
||||||
|
};
|
||||||
|
|
||||||
static const VMStateDescription vmstate_exynos4210_irq_gate = {
|
static const VMStateDescription vmstate_exynos4210_irq_gate = {
|
||||||
.name = "exynos4210.irq_gate",
|
.name = "exynos4210.irq_gate",
|
||||||
.version_id = 1,
|
.version_id = 2,
|
||||||
.minimum_version_id = 1,
|
.minimum_version_id = 2,
|
||||||
.minimum_version_id_old = 1,
|
.minimum_version_id_old = 2,
|
||||||
.fields = (VMStateField[]) {
|
.fields = (VMStateField[]) {
|
||||||
VMSTATE_UINT32_ARRAY(gpio_level, Exynos4210IRQGateState,
|
VMSTATE_VBUFFER_UINT32(level, Exynos4210IRQGateState, 1, NULL, 0, n_in),
|
||||||
EXYNOS4210_IRQ_GATE_NINPUTS),
|
|
||||||
VMSTATE_END_OF_LIST()
|
VMSTATE_END_OF_LIST()
|
||||||
}
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
/* Process a change in an external IRQ input. */
|
/* Process a change in IRQ input. */
|
||||||
static void exynos4210_irq_gate_handler(void *opaque, int irq, int level)
|
static void exynos4210_irq_gate_handler(void *opaque, int irq, int level)
|
||||||
{
|
{
|
||||||
Exynos4210IRQGateState *s =
|
Exynos4210IRQGateState *s = (Exynos4210IRQGateState *)opaque;
|
||||||
(Exynos4210IRQGateState *)opaque;
|
uint32_t i;
|
||||||
uint32_t odd, even;
|
|
||||||
|
|
||||||
if (irq & 1) {
|
assert(irq < s->n_in);
|
||||||
odd = irq;
|
|
||||||
even = irq & ~1;
|
s->level[irq] = level;
|
||||||
} else {
|
|
||||||
even = irq;
|
for (i = 0; i < s->n_in; i++) {
|
||||||
odd = irq | 1;
|
if (s->level[i] >= 1) {
|
||||||
|
qemu_irq_raise(s->out);
|
||||||
|
return;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
assert(irq < EXYNOS4210_IRQ_GATE_NINPUTS);
|
qemu_irq_lower(s->out);
|
||||||
s->gpio_level[irq] = level;
|
|
||||||
|
|
||||||
if (s->gpio_level[odd] >= 1 || s->gpio_level[even] >= 1) {
|
|
||||||
qemu_irq_raise(s->pic_irq[even >> 1]);
|
|
||||||
} else {
|
|
||||||
qemu_irq_lower(s->pic_irq[even >> 1]);
|
|
||||||
}
|
|
||||||
|
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
static void exynos4210_irq_gate_reset(DeviceState *d)
|
static void exynos4210_irq_gate_reset(DeviceState *d)
|
||||||
{
|
{
|
||||||
Exynos4210IRQGateState *s = (Exynos4210IRQGateState *)d;
|
Exynos4210IRQGateState *s =
|
||||||
|
DO_UPCAST(Exynos4210IRQGateState, busdev.qdev, d);
|
||||||
|
|
||||||
memset(&s->gpio_level, 0, sizeof(s->gpio_level));
|
memset(s->level, 0, s->n_in * sizeof(*s->level));
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -424,19 +427,15 @@ static void exynos4210_irq_gate_reset(DeviceState *d)
|
||||||
*/
|
*/
|
||||||
static int exynos4210_irq_gate_init(SysBusDevice *dev)
|
static int exynos4210_irq_gate_init(SysBusDevice *dev)
|
||||||
{
|
{
|
||||||
unsigned int i;
|
Exynos4210IRQGateState *s = FROM_SYSBUS(Exynos4210IRQGateState, dev);
|
||||||
Exynos4210IRQGateState *s =
|
|
||||||
FROM_SYSBUS(Exynos4210IRQGateState, dev);
|
|
||||||
|
|
||||||
/* Allocate general purpose input signals and connect a handler to each of
|
/* Allocate general purpose input signals and connect a handler to each of
|
||||||
* them */
|
* them */
|
||||||
qdev_init_gpio_in(&s->busdev.qdev, exynos4210_irq_gate_handler,
|
qdev_init_gpio_in(&s->busdev.qdev, exynos4210_irq_gate_handler, s->n_in);
|
||||||
EXYNOS4210_IRQ_GATE_NINPUTS);
|
|
||||||
|
|
||||||
/* Connect SysBusDev irqs to device specific irqs */
|
s->level = g_malloc0(s->n_in * sizeof(*s->level));
|
||||||
for (i = 0; i < EXYNOS4210_NCPUS; i++) {
|
|
||||||
sysbus_init_irq(dev, &s->pic_irq[i]);
|
sysbus_init_irq(dev, &s->out);
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -449,6 +448,7 @@ static void exynos4210_irq_gate_class_init(ObjectClass *klass, void *data)
|
||||||
k->init = exynos4210_irq_gate_init;
|
k->init = exynos4210_irq_gate_init;
|
||||||
dc->reset = exynos4210_irq_gate_reset;
|
dc->reset = exynos4210_irq_gate_reset;
|
||||||
dc->vmsd = &vmstate_exynos4210_irq_gate;
|
dc->vmsd = &vmstate_exynos4210_irq_gate;
|
||||||
|
dc->props = exynos4210_irq_gate_properties;
|
||||||
}
|
}
|
||||||
|
|
||||||
static TypeInfo exynos4210_irq_gate_info = {
|
static TypeInfo exynos4210_irq_gate_info = {
|
||||||
|
|
95
hw/omap.h
95
hw/omap.h
|
@ -998,7 +998,6 @@ enum {
|
||||||
#define OMAP_GPIOSW_OUTPUT 0x0002
|
#define OMAP_GPIOSW_OUTPUT 0x0002
|
||||||
|
|
||||||
# define TCMI_VERBOSE 1
|
# define TCMI_VERBOSE 1
|
||||||
//# define MEM_VERBOSE 1
|
|
||||||
|
|
||||||
# ifdef TCMI_VERBOSE
|
# ifdef TCMI_VERBOSE
|
||||||
# define OMAP_8B_REG(paddr) \
|
# define OMAP_8B_REG(paddr) \
|
||||||
|
@ -1018,98 +1017,4 @@ enum {
|
||||||
|
|
||||||
# define OMAP_MPUI_REG_MASK 0x000007ff
|
# define OMAP_MPUI_REG_MASK 0x000007ff
|
||||||
|
|
||||||
# ifdef MEM_VERBOSE
|
|
||||||
struct io_fn {
|
|
||||||
CPUReadMemoryFunc * const *mem_read;
|
|
||||||
CPUWriteMemoryFunc * const *mem_write;
|
|
||||||
void *opaque;
|
|
||||||
int in;
|
|
||||||
};
|
|
||||||
|
|
||||||
static uint32_t io_readb(void *opaque, target_phys_addr_t addr)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
uint32_t ret;
|
|
||||||
|
|
||||||
s->in ++;
|
|
||||||
ret = s->mem_read[0](s->opaque, addr);
|
|
||||||
s->in --;
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x ---> %02x\n", (uint32_t) addr, ret);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
static uint32_t io_readh(void *opaque, target_phys_addr_t addr)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
uint32_t ret;
|
|
||||||
|
|
||||||
s->in ++;
|
|
||||||
ret = s->mem_read[1](s->opaque, addr);
|
|
||||||
s->in --;
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x ---> %04x\n", (uint32_t) addr, ret);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
static uint32_t io_readw(void *opaque, target_phys_addr_t addr)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
uint32_t ret;
|
|
||||||
|
|
||||||
s->in ++;
|
|
||||||
ret = s->mem_read[2](s->opaque, addr);
|
|
||||||
s->in --;
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x ---> %08x\n", (uint32_t) addr, ret);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
static void io_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x <--- %02x\n", (uint32_t) addr, value);
|
|
||||||
s->in ++;
|
|
||||||
s->mem_write[0](s->opaque, addr, value);
|
|
||||||
s->in --;
|
|
||||||
}
|
|
||||||
static void io_writeh(void *opaque, target_phys_addr_t addr, uint32_t value)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x <--- %04x\n", (uint32_t) addr, value);
|
|
||||||
s->in ++;
|
|
||||||
s->mem_write[1](s->opaque, addr, value);
|
|
||||||
s->in --;
|
|
||||||
}
|
|
||||||
static void io_writew(void *opaque, target_phys_addr_t addr, uint32_t value)
|
|
||||||
{
|
|
||||||
struct io_fn *s = opaque;
|
|
||||||
|
|
||||||
if (!s->in)
|
|
||||||
fprintf(stderr, "%08x <--- %08x\n", (uint32_t) addr, value);
|
|
||||||
s->in ++;
|
|
||||||
s->mem_write[2](s->opaque, addr, value);
|
|
||||||
s->in --;
|
|
||||||
}
|
|
||||||
|
|
||||||
static CPUReadMemoryFunc * const io_readfn[] = { io_readb, io_readh, io_readw, };
|
|
||||||
static CPUWriteMemoryFunc * const io_writefn[] = { io_writeb, io_writeh, io_writew, };
|
|
||||||
|
|
||||||
inline static int debug_register_io_memory(CPUReadMemoryFunc * const *mem_read,
|
|
||||||
CPUWriteMemoryFunc * const *mem_write,
|
|
||||||
void *opaque)
|
|
||||||
{
|
|
||||||
struct io_fn *s = g_malloc(sizeof(struct io_fn));
|
|
||||||
|
|
||||||
s->mem_read = mem_read;
|
|
||||||
s->mem_write = mem_write;
|
|
||||||
s->opaque = opaque;
|
|
||||||
s->in = 0;
|
|
||||||
return cpu_register_io_memory(io_readfn, io_writefn, s,
|
|
||||||
DEVICE_NATIVE_ENDIAN);
|
|
||||||
}
|
|
||||||
# define cpu_register_io_memory debug_register_io_memory
|
|
||||||
# endif
|
|
||||||
|
|
||||||
#endif /* hw_omap_h */
|
#endif /* hw_omap_h */
|
||||||
|
|
Loading…
Reference in a new issue