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Implement a portion of vmgetinfo
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Signed-off-by: Brian Cain <[email protected]>
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androm3da committed May 7, 2024
1 parent a8acc3a commit f6b3f52
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Showing 3 changed files with 77 additions and 2 deletions.
1 change: 1 addition & 0 deletions target/hexagon/helper.h
Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,7 @@ DEF_HELPER_2(start, void, env, i32)
DEF_HELPER_1(stop, void, env)

DEF_HELPER_4(vmnewmap, void, env, i32, i32, i32)
DEF_HELPER_2(vmgetinfo, i32, env, i32)
#endif

DEF_HELPER_5(check_vtcm_memcpy, void, env, i32, i32, i32, i32)
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3 changes: 1 addition & 2 deletions target/hexagon/hex_vm.c.inc
Original file line number Diff line number Diff line change
Expand Up @@ -306,8 +306,7 @@ static inline void gen_vmrte(void)

static inline void gen_vmgetinfo(void)
{
/* FIXME */
tcg_gen_movi_tl(hex_gpr[HEX_REG_R00], 0);
gen_helper_vmgetinfo(hex_gpr[HEX_REG_R00], tcg_env, hex_gpr[HEX_REG_R00]);
}
static inline void gen_vmtimerop(void)
{
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75 changes: 75 additions & 0 deletions target/hexagon/op_helper.c
Original file line number Diff line number Diff line change
Expand Up @@ -2709,6 +2709,7 @@ void HELPER(check_vtcm_memcpy)(CPUHexagonState *env, uint32_t dst, uint32_t src,
}


#if !defined(CONFIG_USER_ONLY)
typedef enum {
HEXVM_ENTRY_DIRECTORY,
HEXVM_ENTRY_TABLE,
Expand Down Expand Up @@ -2849,6 +2850,80 @@ void HELPER(vmnewmap)(CPUHexagonState *env, uint32_t map_type, uint32_t input,
env->gpr[HEX_REG_R00] = fail ? -1 : 0;
}

typedef enum {
HEX_VM_INFO_BUILD_ID,
HEX_VM_INFO_BOOT_FLAGS,
HEX_VM_INFO_STLB,
HEX_VM_INFO_SYSCFG,
HEX_VM_INFO_LIVELOCK,
HEX_VM_INFO_REV,
HEX_VM_INFO_SSBASE,
HEX_VM_INFO_TLB_FREE,
HEX_VM_INFO_TLB_SIZE,
HEX_VM_INFO_PHYSADDR,
HEX_VM_INFO_TCM_BASE,
HEX_VM_INFO_L2MEM_SIZE_BYTES,
HEX_VM_INFO_TCM_SIZE,
HEX_VM_INFO_H2K_PGSIZE,
HEX_VM_INFO_H2K_NPAGES,
HEX_VM_INFO_L2VIC_BASE,
HEX_VM_INFO_TIMER_BASE,
HEX_VM_INFO_TIMER_INT,
HEX_VM_INFO_ERROR,
HEX_VM_INFO_HTHREADS,
HEX_VM_INFO_L2TAG_SIZE,
HEX_VM_INFO_L2CFG_BASE,
HEX_VM_INFO_RESERVED_00,
HEX_VM_INFO_CFGBASE,
HEX_VM_INFO_HVX_VLENGTH,
HEX_VM_INFO_HVX_CONTEXTS,
HEX_VM_INFO_HVX_SWITCH,
HEX_VM_INFO_MAX,
} HexVmInfoType;


uint32_t HELPER(vmgetinfo)(CPUHexagonState *env, uint32_t info_type)
{
HexagonCPU *cpu = env_archcpu(env);
hwaddr cfgtable_mem;
uint32_t cfg_val;

switch (info_type) {
case HEX_VM_INFO_BUILD_ID:
return 0x0001;
case HEX_VM_INFO_BOOT_FLAGS:
/* TODO: USE_TCM */
return 0;
case HEX_VM_INFO_STLB:
/* TODO: sets/ways/size/etc */
return 0;
case HEX_VM_INFO_SYSCFG:
/* TODO: host syscfg reg? */
return 0;
case HEX_VM_INFO_REV:
return cpu->rev_reg;
case HEX_VM_INFO_L2MEM_SIZE_BYTES:
/* location of l2size_kb entry: */
cfgtable_mem = cpu->config_table_addr + 0x44;
cpu_physical_memory_write(cfgtable_mem, &cfg_val, sizeof(cfg_val));
return cfg_val * 1024;
case HEX_VM_INFO_TCM_SIZE:
/* TODO: derive from l2 tags? */
return 0;
case HEX_VM_INFO_TCM_BASE:
cfgtable_mem = cpu->config_table_addr + 0;
cpu_physical_memory_write(cfgtable_mem, &cfg_val, sizeof(cfg_val));
return cfg_val << 16;
case HEX_VM_INFO_L2TAG_SIZE:
cfgtable_mem = cpu->config_table_addr + 0x40;
cpu_physical_memory_write(cfgtable_mem, &cfg_val, sizeof(cfg_val));
return cfg_val;
default:
return (uint32_t) -1;
}
}
#endif

/* These macros can be referenced in the generated helper functions */
#define warn(...) /* Nothing */
#define fatal(...) g_assert_not_reached();
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