diff options
| author | Alistair Francis <alistair.francis@xilinx.com> | 2015-06-18 21:16:29 -0700 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 2015-06-21 17:20:15 +1000 |
| commit | 714461237083c1eadcb9d686f8ce4088737c1d0a (patch) | |
| tree | 66599bcbe83d070ee1ee6d15e1278960bdf64bf3 | |
| parent | be67e9ab9740d5a80e5c37bfd35247a4e449bc5a (diff) | |
target-microblaze: Convert use-mmu to a CPU property
Originally the use-mmu PVR bits were manually set for each machine. This
is a hassle and difficult to read, instead set them based on the CPU
properties.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
| -rw-r--r-- | target-microblaze/cpu-qom.h | 1 | ||||
| -rw-r--r-- | target-microblaze/cpu.c | 5 | ||||
| -rw-r--r-- | target-microblaze/cpu.h | 2 | ||||
| -rw-r--r-- | target-microblaze/helper.c | 2 |
4 files changed, 6 insertions, 4 deletions
diff --git a/target-microblaze/cpu-qom.h b/target-microblaze/cpu-qom.h index aa9c0325cf..6bde2e9fc2 100644 --- a/target-microblaze/cpu-qom.h +++ b/target-microblaze/cpu-qom.h @@ -64,6 +64,7 @@ typedef struct MicroBlazeCPU { bool stackprot; uint32_t base_vectors; uint8_t use_fpu; + bool use_mmu; } cfg; CPUMBState env; diff --git a/target-microblaze/cpu.c b/target-microblaze/cpu.c index a6b6fd7ac8..c4cd68ab79 100644 --- a/target-microblaze/cpu.c +++ b/target-microblaze/cpu.c @@ -98,7 +98,6 @@ static void mb_cpu_realizefn(DeviceState *dev, Error **errp) | PVR0_USE_EXC_MASK \ | PVR0_USE_ICACHE_MASK \ | PVR0_USE_DCACHE_MASK \ - | PVR0_USE_MMU \ | (0xb << 8); env->pvr.regs[2] = PVR2_D_OPB_MASK \ | PVR2_D_LMB_MASK \ @@ -114,7 +113,8 @@ static void mb_cpu_realizefn(DeviceState *dev, Error **errp) | 0; env->pvr.regs[0] |= (cpu->cfg.stackprot ? PVR0_SPROT_MASK : 0) | - (cpu->cfg.use_fpu ? PVR0_USE_FPU_MASK : 0); + (cpu->cfg.use_fpu ? PVR0_USE_FPU_MASK : 0) | + (cpu->cfg.use_mmu ? PVR0_USE_MMU_MASK : 0); env->pvr.regs[2] |= (cpu->cfg.use_fpu ? PVR2_USE_FPU_MASK : 0) | (cpu->cfg.use_fpu > 1 ? PVR2_USE_FPU2_MASK : 0); @@ -168,6 +168,7 @@ static Property mb_properties[] = { * are enabled */ DEFINE_PROP_UINT8("use-fpu", MicroBlazeCPU, cfg.use_fpu, 2), + DEFINE_PROP_BOOL("use-mmu", MicroBlazeCPU, cfg.use_mmu, true), DEFINE_PROP_END_OF_LIST(), }; diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h index 60a7500b80..54e41e8721 100644 --- a/target-microblaze/cpu.h +++ b/target-microblaze/cpu.h @@ -122,7 +122,7 @@ typedef struct CPUMBState CPUMBState; #define PVR0_USE_EXC_MASK 0x04000000 #define PVR0_USE_ICACHE_MASK 0x02000000 #define PVR0_USE_DCACHE_MASK 0x01000000 -#define PVR0_USE_MMU 0x00800000 /* new */ +#define PVR0_USE_MMU_MASK 0x00800000 #define PVR0_USE_BTC 0x00400000 #define PVR0_ENDI 0x00200000 #define PVR0_FAULT 0x00100000 diff --git a/target-microblaze/helper.c b/target-microblaze/helper.c index 69c3252554..5156c12dc6 100644 --- a/target-microblaze/helper.c +++ b/target-microblaze/helper.c @@ -56,7 +56,7 @@ int mb_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, int prot; mmu_available = 0; - if (env->pvr.regs[0] & PVR0_USE_MMU) { + if (cpu->cfg.use_mmu) { mmu_available = 1; if ((env->pvr.regs[0] & PVR0_PVR_FULL_MASK) && (env->pvr.regs[11] & PVR11_USE_MMU) != PVR11_USE_MMU) { |