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target/xtensa: sim: instantiate local memories

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Xtensa core may have a number of RAM and ROM areas configured. Record
their size and location from the core configuration overlay and
instantiate them as RAM regions in the SIM machine.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2017-02-22 18:59:32 -08:00
parent 10f25e4844
commit b68755c142
3 changed files with 207 additions and 9 deletions
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40
hw/xtensa/sim.c
View file

@ -37,6 +37,27 @@
#include "exec/address-spaces.h"
#include "qemu/error-report.h"
static void xtensa_create_memory_regions(const XtensaMemory *memory,
const char *name)
{
unsigned i;
char *num_name = malloc(strlen(name) + sizeof(i) * 3 + 1);
for (i = 0; i < memory->num; ++i) {
MemoryRegion *m;
sprintf(num_name, "%s%u", name, i);
m = g_malloc(sizeof(*m));
memory_region_init_ram(m, NULL, num_name,
memory->location[i].size,
&error_fatal);
vmstate_register_ram_global(m);
memory_region_add_subregion(get_system_memory(),
memory->location[i].addr, m);
}
free(num_name);
}
static uint64_t translate_phys_addr(void *opaque, uint64_t addr)
{
XtensaCPU *cpu = opaque;
@ -55,7 +76,6 @@ static void xtensa_sim_init(MachineState *machine)
{
XtensaCPU *cpu = NULL;
CPUXtensaState *env = NULL;
MemoryRegion *ram, *rom;
ram_addr_t ram_size = machine->ram_size;
const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
@ -82,15 +102,17 @@ static void xtensa_sim_init(MachineState *machine)
sim_reset(cpu);
}
ram = g_malloc(sizeof(*ram));
memory_region_init_ram(ram, NULL, "xtensa.sram", ram_size, &error_fatal);
vmstate_register_ram_global(ram);
memory_region_add_subregion(get_system_memory(), 0, ram);
if (env) {
XtensaMemory sysram = env->config->sysram;
rom = g_malloc(sizeof(*rom));
memory_region_init_ram(rom, NULL, "xtensa.rom", 0x1000, &error_fatal);
vmstate_register_ram_global(rom);
memory_region_add_subregion(get_system_memory(), 0xfe000000, rom);
sysram.location[0].size = ram_size;
xtensa_create_memory_regions(&env->config->instrom, "xtensa.instrom");
xtensa_create_memory_regions(&env->config->instram, "xtensa.instram");
xtensa_create_memory_regions(&env->config->datarom, "xtensa.datarom");
xtensa_create_memory_regions(&env->config->dataram, "xtensa.dataram");
xtensa_create_memory_regions(&env->config->sysrom, "xtensa.sysrom");
xtensa_create_memory_regions(&sysram, "xtensa.sysram");
}
if (kernel_filename) {
uint64_t elf_entry;

16
target/xtensa/cpu.h
View file

@ -212,6 +212,7 @@ enum {
#define MAX_NCCOMPARE 3
#define MAX_TLB_WAY_SIZE 8
#define MAX_NDBREAK 2
#define MAX_NMEMORY 4
#define REGION_PAGE_MASK 0xe0000000
@ -321,6 +322,14 @@ typedef struct XtensaCcompareTimer {
QEMUTimer *timer;
} XtensaCcompareTimer;
typedef struct XtensaMemory {
unsigned num;
struct XtensaMemoryRegion {
uint32_t addr;
uint32_t size;
} location[MAX_NMEMORY];
} XtensaMemory;
struct XtensaConfig {
const char *name;
uint64_t options;
@ -352,6 +361,13 @@ struct XtensaConfig {
unsigned dcache_ways;
uint32_t memctl_mask;
XtensaMemory instrom;
XtensaMemory instram;
XtensaMemory datarom;
XtensaMemory dataram;
XtensaMemory sysrom;
XtensaMemory sysram;
uint32_t configid[2];
uint32_t clock_freq_khz;

160
target/xtensa/overlay_tool.h
View file

@ -318,6 +318,16 @@
.itlb = ITLB(XCHAL_HAVE_SPANNING_WAY), \
.dtlb = DTLB(XCHAL_HAVE_SPANNING_WAY)
#ifndef XCHAL_SYSROM0_PADDR
#define XCHAL_SYSROM0_PADDR 0xfe000000
#define XCHAL_SYSROM0_SIZE 0x02000000
#endif
#ifndef XCHAL_SYSRAM0_PADDR
#define XCHAL_SYSRAM0_PADDR 0x00000000
#define XCHAL_SYSRAM0_SIZE 0x08000000
#endif
#elif XCHAL_HAVE_XLT_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR
#define TLB_TEMPLATE { \
@ -331,6 +341,28 @@
.itlb = TLB_TEMPLATE, \
.dtlb = TLB_TEMPLATE
#ifndef XCHAL_SYSROM0_PADDR
#define XCHAL_SYSROM0_PADDR 0x60000000
#define XCHAL_SYSROM0_SIZE 0x04000000
#endif
#ifndef XCHAL_SYSRAM0_PADDR
#define XCHAL_SYSRAM0_PADDR 0x50000000
#define XCHAL_SYSRAM0_SIZE 0x04000000
#endif
#else
#ifndef XCHAL_SYSROM0_PADDR
#define XCHAL_SYSROM0_PADDR 0x60000000
#define XCHAL_SYSROM0_SIZE 0x04000000
#endif
#ifndef XCHAL_SYSRAM0_PADDR
#define XCHAL_SYSRAM0_PADDR 0x50000000
#define XCHAL_SYSRAM0_SIZE 0x04000000
#endif
#endif
#if (defined(TARGET_WORDS_BIGENDIAN) != 0) == (XCHAL_HAVE_BE != 0)
@ -362,6 +394,53 @@
MEMCTL_ISNP | MEMCTL_DSNP | \
(XCHAL_HAVE_LOOPS && XCHAL_LOOP_BUFFER_SIZE ? MEMCTL_IL0EN : 0)
#define MEM_LOCATION(name, n) \
{ \
.addr = XCHAL_ ## name ## n ## _PADDR, \
.size = XCHAL_ ## name ## n ## _SIZE, \
}
#define MEM_SECTIONS(name) \
MEM_LOCATION(name, 0), \
MEM_LOCATION(name, 1), \
MEM_LOCATION(name, 2), \
MEM_LOCATION(name, 3)
#define MEM_SECTION(name) \
.num = XCHAL_NUM_ ## name, \
.location = { \
MEM_SECTIONS(name) \
}
#define SYSMEM_SECTION(name) \
.num = 1, \
.location = { \
{ \
.addr = XCHAL_ ## name ## 0_PADDR, \
.size = XCHAL_ ## name ## 0_SIZE, \
} \
}
#define LOCAL_MEMORIES_SECTION \
.instrom = { \
MEM_SECTION(INSTROM) \
}, \
.instram = { \
MEM_SECTION(INSTRAM) \
}, \
.datarom = { \
MEM_SECTION(DATAROM) \
}, \
.dataram = { \
MEM_SECTION(DATARAM) \
}, \
.sysrom = { \
SYSMEM_SECTION(SYSROM) \
}, \
.sysram = { \
SYSMEM_SECTION(SYSRAM) \
}
#define CONFIG_SECTION \
.configid = { \
XCHAL_HW_CONFIGID0, \
@ -377,6 +456,7 @@
TLB_SECTION, \
DEBUG_SECTION, \
CACHE_SECTION, \
LOCAL_MEMORIES_SECTION, \
CONFIG_SECTION
@ -629,3 +709,83 @@
#define XTHAL_TIMER_UNCONFIGURED 0
#if XCHAL_NUM_INSTROM < 1
#define XCHAL_INSTROM0_PADDR 0
#define XCHAL_INSTROM0_SIZE 0
#endif
#if XCHAL_NUM_INSTROM < 2
#define XCHAL_INSTROM1_PADDR 0
#define XCHAL_INSTROM1_SIZE 0
#endif
#if XCHAL_NUM_INSTROM < 3
#define XCHAL_INSTROM2_PADDR 0
#define XCHAL_INSTROM2_SIZE 0
#endif
#if XCHAL_NUM_INSTROM < 4
#define XCHAL_INSTROM3_PADDR 0
#define XCHAL_INSTROM3_SIZE 0
#endif
#if XCHAL_NUM_INSTROM > MAX_NMEMORY
#error XCHAL_NUM_INSTROM > MAX_NMEMORY
#endif
#if XCHAL_NUM_INSTRAM < 1
#define XCHAL_INSTRAM0_PADDR 0
#define XCHAL_INSTRAM0_SIZE 0
#endif
#if XCHAL_NUM_INSTRAM < 2
#define XCHAL_INSTRAM1_PADDR 0
#define XCHAL_INSTRAM1_SIZE 0
#endif
#if XCHAL_NUM_INSTRAM < 3
#define XCHAL_INSTRAM2_PADDR 0
#define XCHAL_INSTRAM2_SIZE 0
#endif
#if XCHAL_NUM_INSTRAM < 4
#define XCHAL_INSTRAM3_PADDR 0
#define XCHAL_INSTRAM3_SIZE 0
#endif
#if XCHAL_NUM_INSTRAM > MAX_NMEMORY
#error XCHAL_NUM_INSTRAM > MAX_NMEMORY
#endif
#if XCHAL_NUM_DATAROM < 1
#define XCHAL_DATAROM0_PADDR 0
#define XCHAL_DATAROM0_SIZE 0
#endif
#if XCHAL_NUM_DATAROM < 2
#define XCHAL_DATAROM1_PADDR 0
#define XCHAL_DATAROM1_SIZE 0
#endif
#if XCHAL_NUM_DATAROM < 3
#define XCHAL_DATAROM2_PADDR 0
#define XCHAL_DATAROM2_SIZE 0
#endif
#if XCHAL_NUM_DATAROM < 4
#define XCHAL_DATAROM3_PADDR 0
#define XCHAL_DATAROM3_SIZE 0
#endif
#if XCHAL_NUM_DATAROM > MAX_NMEMORY
#error XCHAL_NUM_DATAROM > MAX_NMEMORY
#endif
#if XCHAL_NUM_DATARAM < 1
#define XCHAL_DATARAM0_PADDR 0
#define XCHAL_DATARAM0_SIZE 0
#endif
#if XCHAL_NUM_DATARAM < 2
#define XCHAL_DATARAM1_PADDR 0
#define XCHAL_DATARAM1_SIZE 0
#endif
#if XCHAL_NUM_DATARAM < 3
#define XCHAL_DATARAM2_PADDR 0
#define XCHAL_DATARAM2_SIZE 0
#endif
#if XCHAL_NUM_DATARAM < 4
#define XCHAL_DATARAM3_PADDR 0
#define XCHAL_DATARAM3_SIZE 0
#endif
#if XCHAL_NUM_DATARAM > MAX_NMEMORY
#error XCHAL_NUM_DATARAM > MAX_NMEMORY
#endif