diff options
Diffstat (limited to 'hw/iommu.c')
| -rw-r--r-- | hw/iommu.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/hw/iommu.c b/hw/iommu.c index ee9b78c87..82a493288 100644 --- a/hw/iommu.c +++ b/hw/iommu.c @@ -78,6 +78,19 @@ do { printf("IOMMU: " fmt , ##args); } while (0) #define IOMMU_AFAR (0x1004 >> 2) +#define IOMMU_AER (0x1008 >> 2) /* Arbiter Enable Register */ +#define IOMMU_AER_EN_P0_ARB 0x00000001 /* MBus master 0x8 (Always 1) */ +#define IOMMU_AER_EN_P1_ARB 0x00000002 /* MBus master 0x9 */ +#define IOMMU_AER_EN_P2_ARB 0x00000004 /* MBus master 0xa */ +#define IOMMU_AER_EN_P3_ARB 0x00000008 /* MBus master 0xb */ +#define IOMMU_AER_EN_0 0x00010000 /* SBus slot 0 */ +#define IOMMU_AER_EN_1 0x00020000 /* SBus slot 1 */ +#define IOMMU_AER_EN_2 0x00040000 /* SBus slot 2 */ +#define IOMMU_AER_EN_3 0x00080000 /* SBus slot 3 */ +#define IOMMU_AER_EN_F 0x00100000 /* SBus on-board */ +#define IOMMU_AER_SBW 0x80000000 /* S-to-M asynchronous writes */ +#define IOMMU_AER_MASK 0x801f000f + #define IOMMU_SBCFG0 (0x1010 >> 2) /* SBUS configration per-slot */ #define IOMMU_SBCFG1 (0x1014 >> 2) /* SBUS configration per-slot */ #define IOMMU_SBCFG2 (0x1018 >> 2) /* SBUS configration per-slot */ @@ -196,6 +209,9 @@ static void iommu_mem_writel(void *opaque, target_phys_addr_t addr, s->regs[saddr] = val; qemu_irq_lower(s->irq); break; + case IOMMU_AER: + s->regs[saddr] = (val & IOMMU_AER_MASK) | IOMMU_AER_EN_P0_ARB; + break; case IOMMU_AFSR: s->regs[saddr] = (val & IOMMU_AFSR_MASK) | IOMMU_AFSR_RESV; qemu_irq_lower(s->irq); @@ -344,6 +360,7 @@ static void iommu_reset(void *opaque) s->regs[IOMMU_CTRL] = s->version; s->regs[IOMMU_ARBEN] = IOMMU_MID; s->regs[IOMMU_AFSR] = IOMMU_AFSR_RESV; + s->regs[IOMMU_AER] = IOMMU_AER_EN_P0_ARB | IOMMU_AER_EN_P1_ARB; s->regs[IOMMU_MASK_ID] = IOMMU_TS_MASK; qemu_irq_lower(s->irq); } |