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https://github.com/m-labs/artiq.git
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Implement core device storage (fixes #219).
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1543141cee
commit
9366a29483
@ -37,6 +37,18 @@ class CompileError(Exception):
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def rtio_get_counter() -> TInt64:
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raise NotImplementedError("syscall not simulated")
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@syscall
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def cache_get(TStr) -> TList(TInt32):
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raise NotImplementedError("syscall not simulated")
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@syscall
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def cache_put(TStr, TList(TInt32)):
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raise NotImplementedError("syscall not simulated")
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@syscall
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def cache_clear(TStr):
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raise NotImplementedError("syscall not simulated")
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class Core:
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"""Core device driver.
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@ -108,3 +120,15 @@ class Core:
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min_now = rtio_get_counter() + 125000
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if now_mu() < min_now:
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at_mu(min_now)
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@kernel
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def get_cache(self, key):
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return cache_get(key)
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@kernel
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def put_cache(self, key, value):
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return cache_put(key, value)
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@kernel
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def clear_cache(self, key):
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return cache_clear(key)
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@ -7,7 +7,7 @@ from misoc.integration.soc_core import mem_decoder
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class KernelCPU(Module):
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def __init__(self, platform,
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exec_address=0x40800000,
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exec_address=0x42000000,
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main_mem_origin=0x40000000,
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l2_size=8192):
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self._reset = CSRStorage(reset=1)
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@ -9,7 +9,8 @@ OBJECTS := isr.o clock.o rtiocrg.o flash_storage.o mailbox.o \
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OBJECTS_KSUPPORT := ksupport.o artiq_personality.o mailbox.o \
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bridge.o rtio.o ttl.o dds.o
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CFLAGS += -I$(MISOC_DIRECTORY)/software/include/dyld \
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CFLAGS += -I$(LIBALLOC_DIRECTORY) \
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-I$(MISOC_DIRECTORY)/software/include/dyld \
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-I$(LIBDYLD_DIRECTORY)/include \
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-I$(LIBUNWIND_DIRECTORY) \
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-I$(LIBUNWIND_DIRECTORY)/../unwinder/include \
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@ -31,10 +32,11 @@ runtime.elf: $(OBJECTS)
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-N -o $@ \
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../libbase/crt0-$(CPU).o \
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$(OBJECTS) \
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-L../libbase \
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-L../libcompiler_rt \
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-L../libbase \
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-L../liballoc \
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-L../liblwip \
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-lbase -lcompiler_rt -llwip
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-lbase -lcompiler_rt -lalloc -llwip
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@chmod -x $@
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ksupport.elf: $(OBJECTS_KSUPPORT)
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@ -48,7 +50,7 @@ ksupport.elf: $(OBJECTS_KSUPPORT)
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-L../libcompiler_rt \
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-L../libunwind \
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-L../libdyld \
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-lbase -lcompiler_rt -lunwind -ldyld
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-lbase -lcompiler_rt -ldyld -lunwind
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@chmod -x $@
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ksupport_data.o: ksupport.elf
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@ -3,8 +3,8 @@
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#include "artiq_personality.h"
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#define KERNELCPU_EXEC_ADDRESS 0x40800000
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#define KERNELCPU_PAYLOAD_ADDRESS 0x40820000
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#define KERNELCPU_EXEC_ADDRESS 0x42000000
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#define KERNELCPU_PAYLOAD_ADDRESS 0x42020000
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#define KERNELCPU_LAST_ADDRESS (0x4fffffff - 1024*1024)
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#define KSUPPORT_HEADER_SIZE 0x80
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@ -122,6 +122,10 @@ static const struct symbol runtime_exports[] = {
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{"dds_batch_exit", &dds_batch_exit},
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{"dds_set", &dds_set},
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{"cache_get", &cache_get},
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{"cache_put", &cache_put},
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{"cache_clear", &cache_clear},
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/* end */
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{NULL, NULL}
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};
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@ -444,6 +448,55 @@ void attribute_writeback(void *utypes) {
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}
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}
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struct artiq_list cache_get(const char *key)
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{
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struct msg_cache_get_request request;
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struct msg_cache_get_reply *reply;
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request.type = MESSAGE_TYPE_CACHE_GET_REQUEST;
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request.key = key;
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mailbox_send_and_wait(&request);
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reply = mailbox_wait_and_receive();
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if(reply->type != MESSAGE_TYPE_CACHE_GET_REPLY) {
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log("Malformed MESSAGE_TYPE_CACHE_GET_REQUEST reply type %d",
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reply->type);
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while(1);
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}
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return (struct artiq_list) { reply->length, reply->elements };
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}
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void cache_put(const char *key, struct artiq_list value)
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{
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struct msg_cache_put_request request;
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struct msg_cache_put_reply *reply;
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request.type = MESSAGE_TYPE_CACHE_PUT_REQUEST;
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request.key = key;
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request.elements = value.elements;
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request.length = value.length;
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mailbox_send_and_wait(&request);
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reply = mailbox_wait_and_receive();
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if(reply->type != MESSAGE_TYPE_CACHE_PUT_REPLY) {
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log("Malformed MESSAGE_TYPE_CACHE_PUT_REQUEST reply type %d",
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reply->type);
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while(1);
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}
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if(!reply->succeeded) {
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artiq_raise_from_c("CacheError",
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"cannot put into a busy cache row",
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0, 0, 0);
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}
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}
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void cache_clear(const char *key)
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{
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cache_put(key, (struct artiq_list) { 0, NULL });
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}
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void lognonl(const char *fmt, ...)
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{
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struct msg_log request;
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@ -1,12 +1,20 @@
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#ifndef __KSTARTUP_H
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#define __KSTARTUP_H
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struct artiq_list {
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int32_t length;
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int32_t *elements;
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};
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long long int now_init(void);
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void now_save(long long int now);
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int watchdog_set(int ms);
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void watchdog_clear(int id);
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void send_rpc(int service, const char *tag, ...);
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int recv_rpc(void *slot);
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struct artiq_list cache_get(const char *key);
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void cache_put(const char *key, struct artiq_list value);
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void cache_clear(const char *key);
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void lognonl(const char *fmt, ...);
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void log(const char *fmt, ...);
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@ -3,11 +3,12 @@ ENTRY(_start)
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INCLUDE generated/regions.ld
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/* First 8M of main memory are reserved for runtime code/data
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* then comes kernel memory. First 128K of kernel memory are for support code.
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/* First 32M of main memory are reserved for runtime
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* code/data/heap, then comes kernel memory.
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* First 128K of kernel memory are for support code.
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*/
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MEMORY {
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ksupport (RWX) : ORIGIN = 0x40800000, LENGTH = 0x20000
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ksupport (RWX) : ORIGIN = 0x42000000, LENGTH = 0x20000
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}
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/* On AMP systems, kernel stack is at the end of main RAM,
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@ -1,5 +1,6 @@
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#include <stdio.h>
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#include <string.h>
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#include <alloc.h>
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#include <irq.h>
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#include <uart.h>
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#include <console.h>
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@ -263,6 +264,8 @@ static int check_test_mode(void)
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return 0;
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}
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extern void _fheap, _eheap;
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int main(void)
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{
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irq_setmask(0);
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@ -271,6 +274,7 @@ int main(void)
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puts("ARTIQ runtime built "__DATE__" "__TIME__"\n");
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alloc_give(&_fheap, &_eheap - &_fheap);
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clock_init();
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rtiocrg_init();
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puts("Press 't' to enter test mode...");
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@ -3,6 +3,7 @@
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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enum {
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MESSAGE_TYPE_LOAD_REPLY,
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@ -18,6 +19,10 @@ enum {
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MESSAGE_TYPE_RPC_RECV_REQUEST,
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MESSAGE_TYPE_RPC_RECV_REPLY,
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MESSAGE_TYPE_RPC_BATCH,
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MESSAGE_TYPE_CACHE_GET_REQUEST,
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MESSAGE_TYPE_CACHE_GET_REPLY,
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MESSAGE_TYPE_CACHE_PUT_REQUEST,
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MESSAGE_TYPE_CACHE_PUT_REPLY,
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MESSAGE_TYPE_LOG,
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MESSAGE_TYPE_BRG_READY,
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@ -105,6 +110,29 @@ struct msg_rpc_batch {
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void *ptr;
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};
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struct msg_cache_get_request {
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int type;
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const char *key;
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};
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struct msg_cache_get_reply {
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int type;
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size_t length;
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int32_t *elements;
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};
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struct msg_cache_put_request {
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int type;
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const char *key;
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size_t length;
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int32_t *elements;
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};
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struct msg_cache_put_reply {
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int type;
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int succeeded;
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};
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struct msg_log {
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int type;
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const char *fmt;
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@ -7,7 +7,7 @@ INCLUDE generated/regions.ld
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* ld does not allow this expression here.
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*/
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MEMORY {
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runtime : ORIGIN = 0x40000000, LENGTH = 0x800000 /* 8M */
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runtime : ORIGIN = 0x40000000, LENGTH = 0x2000000 /* 32M */
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}
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/* Kernel memory space start right after the runtime,
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@ -65,5 +65,7 @@ SECTIONS
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*(.eh_frame)
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}
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_heapstart = .;
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_fheap = .;
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. += 0x1800000;
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_eheap = .;
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}
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return 1;
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}
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struct cache_row {
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struct cache_row *next;
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char *key;
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size_t length;
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int32_t *elements;
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int borrowed;
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};
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static struct cache_row *cache;
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/* assumes output buffer is empty when called */
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static int process_kmsg(struct msg_base *umsg)
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{
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@ -984,6 +994,60 @@ static int process_kmsg(struct msg_base *umsg)
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break;
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}
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case MESSAGE_TYPE_CACHE_GET_REQUEST: {
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struct msg_cache_get_request *request = (struct msg_cache_get_request *)umsg;
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struct msg_cache_get_reply reply;
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reply.type = MESSAGE_TYPE_CACHE_GET_REPLY;
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reply.length = 0;
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reply.elements = NULL;
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for(struct cache_row *iter = cache; iter; iter = iter->next) {
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if(!strcmp(iter->key, request->key)) {
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reply.length = iter->length;
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reply.elements = iter->elements;
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iter->borrowed = 1;
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break;
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}
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}
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mailbox_send(&reply);
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}
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case MESSAGE_TYPE_CACHE_PUT_REQUEST: {
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struct msg_cache_put_request *request = (struct msg_cache_put_request *)umsg;
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struct msg_cache_put_reply reply;
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reply.type = MESSAGE_TYPE_CACHE_PUT_REPLY;
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struct cache_row *row = NULL;
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for(struct cache_row *iter = cache; iter; iter = iter->next) {
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if(!strcmp(iter->key, request->key)) {
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free(iter->elements);
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row = iter;
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break;
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}
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}
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if(!row) {
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struct cache_row *row = calloc(1, sizeof(struct cache_row));
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row->key = calloc(strlen(request->key) + 1, 1);
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strcpy(row->key, request->key);
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}
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if(!row->borrowed) {
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row->length = request->length;
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row->elements = calloc(row->length, sizeof(int32_t));
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memcpy(row->elements, request->elements,
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sizeof(int32_t) * row->length);
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reply.succeeded = 1;
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} else {
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reply.succeeded = 0;
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}
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mailbox_send(&reply);
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}
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default: {
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log("Received invalid message type %d from kernel CPU",
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umsg->type);
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