Commit b68755c1 authored by Max Filippov's avatar Max Filippov
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target/xtensa: sim: instantiate local memories 



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: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 10f25e48

hw/xtensa/sim.c

+31 −9
Original line number Diff line number Diff line
@@ -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;

target/xtensa/cpu.h

+16 −0
Original line number Diff line number Diff line
@@ -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;

target/xtensa/overlay_tool.h

+160 −0
Original line number Diff line number Diff line
@@ -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