mirror of https://gitee.com/openkylin/qemu.git
m25p80: Convert to support tracing
While at it, add some trace messages to help debug problems seen when running the latest Linux kernel. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Guenter Roeck
Peter Maydell
parent
a510d0c1cd
commit
ccc46090f1
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@ -32,17 +32,7 @@
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#include "qemu/module.h"
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#include "qemu/error-report.h"
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#include "qapi/error.h"
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#ifndef M25P80_ERR_DEBUG
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#define M25P80_ERR_DEBUG 0
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#endif
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#define DB_PRINT_L(level, ...) do { \
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if (M25P80_ERR_DEBUG > (level)) { \
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fprintf(stderr, ": %s: ", __func__); \
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fprintf(stderr, ## __VA_ARGS__); \
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} \
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} while (0)
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#include "trace.h"
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/* Fields for FlashPartInfo->flags */
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@ -574,7 +564,8 @@ static void flash_erase(Flash *s, int offset, FlashCMD cmd)
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abort();
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}
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DB_PRINT_L(0, "offset = %#x, len = %d\n", offset, len);
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trace_m25p80_flash_erase(s, offset, len);
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if ((s->pi->flags & capa_to_assert) != capa_to_assert) {
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qemu_log_mask(LOG_GUEST_ERROR, "M25P80: %d erase size not supported by"
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" device\n", len);
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@ -607,8 +598,7 @@ void flash_write8(Flash *s, uint32_t addr, uint8_t data)
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}
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if ((prev ^ data) & data) {
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DB_PRINT_L(1, "programming zero to one! addr=%" PRIx32 " %" PRIx8
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" -> %" PRIx8 "\n", addr, prev, data);
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trace_m25p80_programming_zero_to_one(s, addr, prev, data);
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}
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if (s->pi->flags & EEPROM) {
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@ -662,6 +652,9 @@ static void complete_collecting_data(Flash *s)
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s->state = STATE_IDLE;
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trace_m25p80_complete_collecting(s, s->cmd_in_progress, n, s->ear,
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s->cur_addr);
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switch (s->cmd_in_progress) {
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case DPP:
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case QPP:
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@ -825,7 +818,7 @@ static void reset_memory(Flash *s)
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break;
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}
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DB_PRINT_L(0, "Reset done.\n");
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trace_m25p80_reset_done(s);
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}
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static void decode_fast_read_cmd(Flash *s)
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@ -941,9 +934,10 @@ static void decode_qio_read_cmd(Flash *s)
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static void decode_new_cmd(Flash *s, uint32_t value)
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{
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s->cmd_in_progress = value;
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int i;
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DB_PRINT_L(0, "decoded new command:%x\n", value);
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s->cmd_in_progress = value;
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trace_m25p80_command_decoded(s, value);
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if (value != RESET_MEMORY) {
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s->reset_enable = false;
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@ -1042,7 +1036,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
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break;
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case JEDEC_READ:
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DB_PRINT_L(0, "populated jedec code\n");
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trace_m25p80_populated_jedec(s);
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for (i = 0; i < s->pi->id_len; i++) {
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s->data[i] = s->pi->id[i];
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}
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@ -1063,7 +1057,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
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case BULK_ERASE_60:
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case BULK_ERASE:
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if (s->write_enable) {
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DB_PRINT_L(0, "chip erase\n");
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trace_m25p80_chip_erase(s);
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flash_erase(s, 0, BULK_ERASE);
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} else {
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qemu_log_mask(LOG_GUEST_ERROR, "M25P80: chip erase with write "
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@ -1184,7 +1178,7 @@ static int m25p80_cs(SSISlave *ss, bool select)
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s->data_read_loop = false;
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}
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DB_PRINT_L(0, "%sselect\n", select ? "de" : "");
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trace_m25p80_select(s, select ? "de" : "");
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return 0;
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}
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@ -1194,19 +1188,20 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t tx)
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Flash *s = M25P80(ss);
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uint32_t r = 0;
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trace_m25p80_transfer(s, s->state, s->len, s->needed_bytes, s->pos,
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s->cur_addr, (uint8_t)tx);
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switch (s->state) {
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case STATE_PAGE_PROGRAM:
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DB_PRINT_L(1, "page program cur_addr=%#" PRIx32 " data=%" PRIx8 "\n",
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s->cur_addr, (uint8_t)tx);
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trace_m25p80_page_program(s, s->cur_addr, (uint8_t)tx);
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flash_write8(s, s->cur_addr, (uint8_t)tx);
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s->cur_addr = (s->cur_addr + 1) & (s->size - 1);
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break;
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case STATE_READ:
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r = s->storage[s->cur_addr];
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DB_PRINT_L(1, "READ 0x%" PRIx32 "=%" PRIx8 "\n", s->cur_addr,
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(uint8_t)r);
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trace_m25p80_read_byte(s, s->cur_addr, (uint8_t)r);
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s->cur_addr = (s->cur_addr + 1) & (s->size - 1);
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break;
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@ -1244,6 +1239,7 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t tx)
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}
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r = s->data[s->pos];
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trace_m25p80_read_data(s, s->pos, (uint8_t)r);
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s->pos++;
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if (s->pos == s->len) {
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s->pos = 0;
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@ -1281,7 +1277,7 @@ static void m25p80_realize(SSISlave *ss, Error **errp)
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return;
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}
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DB_PRINT_L(0, "Binding to IF_MTD drive\n");
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trace_m25p80_binding(s);
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s->storage = blk_blockalign(s->blk, s->size);
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if (blk_pread(s->blk, 0, s->storage, s->size) != s->size) {
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@ -1289,7 +1285,7 @@ static void m25p80_realize(SSISlave *ss, Error **errp)
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return;
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}
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} else {
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DB_PRINT_L(0, "No BDRV - binding to RAM\n");
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trace_m25p80_binding_no_bdrv(s);
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s->storage = blk_blockalign(NULL, s->size);
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memset(s->storage, 0xFF, s->size);
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}
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@ -134,3 +134,19 @@ xen_block_blockdev_add(char *str) "%s"
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xen_block_blockdev_del(const char *node_name) "%s"
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xen_block_device_create(unsigned int number) "%u"
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xen_block_device_destroy(unsigned int number) "%u"
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# m25p80.c
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m25p80_flash_erase(void *s, int offset, uint32_t len) "[%p] offset = 0x%"PRIx32", len = %u"
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m25p80_programming_zero_to_one(void *s, uint32_t addr, uint8_t prev, uint8_t data) "[%p] programming zero to one! addr=0x%"PRIx32" 0x%"PRIx8" -> 0x%"PRIx8
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m25p80_reset_done(void *s) "[%p] Reset done."
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m25p80_command_decoded(void *s, uint32_t cmd) "[%p] new command:0x%"PRIx32
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m25p80_complete_collecting(void *s, uint32_t cmd, int n, uint8_t ear, uint32_t cur_addr) "[%p] decode cmd: 0x%"PRIx32" len %d ear 0x%"PRIx8" addr 0x%"PRIx32
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m25p80_populated_jedec(void *s) "[%p] populated jedec code"
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m25p80_chip_erase(void *s) "[%p] chip erase"
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m25p80_select(void *s, const char *what) "[%p] %sselect"
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m25p80_page_program(void *s, uint32_t addr, uint8_t tx) "[%p] page program cur_addr=0x%"PRIx32" data=0x%"PRIx8
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m25p80_transfer(void *s, uint8_t state, uint32_t len, uint8_t needed, uint32_t pos, uint32_t cur_addr, uint8_t t) "[%p] Transfer state 0x%"PRIx8" len 0x%"PRIx32" needed 0x%"PRIx8" pos 0x%"PRIx32" addr 0x%"PRIx32" tx 0x%"PRIx8
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m25p80_read_byte(void *s, uint32_t addr, uint8_t v) "[%p] Read byte 0x%"PRIx32"=0x%"PRIx8
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m25p80_read_data(void *s, uint32_t pos, uint8_t v) "[%p] Read data 0x%"PRIx32"=0x%"PRIx8
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m25p80_binding(void *s) "[%p] Binding to IF_MTD drive"
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m25p80_binding_no_bdrv(void *s) "[%p] No BDRV - binding to RAM"
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