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sdhci: convert the DPRINT() calls into trace events

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zero-initialize ADMADescr 'dscr' in sdhci_do_adma() to avoid:

  hw/sd/sdhci.c: In function ‘sdhci_do_adma’:
  hw/sd/sdhci.c:714:29: error: ‘dscr.addr’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
             trace_sdhci_adma("link", s->admasysaddr);
                             ^

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180115182436.2066-9-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-01-16 13:28:18 +00:00 committed by Peter Maydell
parent 00b004b347
commit 8be487d8f1
2 changed files with 44 additions and 59 deletions
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89
hw/sd/sdhci.c
View File

@ -34,30 +34,7 @@
#include "sdhci-internal.h"
#include "qapi/error.h"
#include "qemu/log.h"
/* host controller debug messages */
#ifndef SDHC_DEBUG
#define SDHC_DEBUG 0
#endif
#define DPRINT_L1(fmt, args...) \
do { \
if (SDHC_DEBUG) { \
fprintf(stderr, "QEMU SDHC: " fmt, ## args); \
} \
} while (0)
#define DPRINT_L2(fmt, args...) \
do { \
if (SDHC_DEBUG > 1) { \
fprintf(stderr, "QEMU SDHC: " fmt, ## args); \
} \
} while (0)
#define ERRPRINT(fmt, args...) \
do { \
if (SDHC_DEBUG) { \
fprintf(stderr, "QEMU SDHC ERROR: " fmt, ## args); \
} \
} while (0)
#include "trace.h"
#define TYPE_SDHCI_BUS "sdhci-bus"
#define SDHCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SDHCI_BUS)
@ -156,8 +133,8 @@ static void sdhci_raise_insertion_irq(void *opaque)
static void sdhci_set_inserted(DeviceState *dev, bool level)
{
SDHCIState *s = (SDHCIState *)dev;
DPRINT_L1("Card state changed: %s!\n", level ? "insert" : "eject");
trace_sdhci_set_inserted(level ? "insert" : "eject");
if ((s->norintsts & SDHC_NIS_REMOVE) && level) {
/* Give target some time to notice card ejection */
timer_mod(s->insert_timer,
@ -239,7 +216,8 @@ static void sdhci_send_command(SDHCIState *s)
s->acmd12errsts = 0;
request.cmd = s->cmdreg >> 8;
request.arg = s->argument;
DPRINT_L1("sending CMD%u ARG[0x%08x]\n", request.cmd, request.arg);
trace_sdhci_send_command(request.cmd, request.arg);
rlen = sdbus_do_command(&s->sdbus, &request, response);
if (s->cmdreg & SDHC_CMD_RESPONSE) {
@ -247,7 +225,7 @@ static void sdhci_send_command(SDHCIState *s)
s->rspreg[0] = (response[0] << 24) | (response[1] << 16) |
(response[2] << 8) | response[3];
s->rspreg[1] = s->rspreg[2] = s->rspreg[3] = 0;
DPRINT_L1("Response: RSPREG[31..0]=0x%08x\n", s->rspreg[0]);
trace_sdhci_response4(s->rspreg[0]);
} else if (rlen == 16) {
s->rspreg[0] = (response[11] << 24) | (response[12] << 16) |
(response[13] << 8) | response[14];
@ -257,11 +235,10 @@ static void sdhci_send_command(SDHCIState *s)
(response[5] << 8) | response[6];
s->rspreg[3] = (response[0] << 16) | (response[1] << 8) |
response[2];
DPRINT_L1("Response received:\n RSPREG[127..96]=0x%08x, RSPREG[95.."
"64]=0x%08x,\n RSPREG[63..32]=0x%08x, RSPREG[31..0]=0x%08x\n",
s->rspreg[3], s->rspreg[2], s->rspreg[1], s->rspreg[0]);
trace_sdhci_response16(s->rspreg[3], s->rspreg[2],
s->rspreg[1], s->rspreg[0]);
} else {
ERRPRINT("Timeout waiting for command response\n");
trace_sdhci_error("timeout waiting for command response");
if (s->errintstsen & SDHC_EISEN_CMDTIMEOUT) {
s->errintsts |= SDHC_EIS_CMDTIMEOUT;
s->norintsts |= SDHC_NIS_ERR;
@ -295,7 +272,7 @@ static void sdhci_end_transfer(SDHCIState *s)
request.cmd = 0x0C;
request.arg = 0;
DPRINT_L1("Automatically issue CMD%d %08x\n", request.cmd, request.arg);
trace_sdhci_end_transfer(request.cmd, request.arg);
sdbus_do_command(&s->sdbus, &request, response);
/* Auto CMD12 response goes to the upper Response register */
s->rspreg[3] = (response[0] << 24) | (response[1] << 16) |
@ -364,7 +341,7 @@ static uint32_t sdhci_read_dataport(SDHCIState *s, unsigned size)
/* first check that a valid data exists in host controller input buffer */
if ((s->prnsts & SDHC_DATA_AVAILABLE) == 0) {
ERRPRINT("Trying to read from empty buffer\n");
trace_sdhci_error("read from empty buffer");
return 0;
}
@ -373,8 +350,7 @@ static uint32_t sdhci_read_dataport(SDHCIState *s, unsigned size)
s->data_count++;
/* check if we've read all valid data (blksize bytes) from buffer */
if ((s->data_count) >= (s->blksize & 0x0fff)) {
DPRINT_L2("All %u bytes of data have been read from input buffer\n",
s->data_count);
trace_sdhci_read_dataport(s->data_count);
s->prnsts &= ~SDHC_DATA_AVAILABLE; /* no more data in a buffer */
s->data_count = 0; /* next buff read must start at position [0] */
@ -457,7 +433,7 @@ static void sdhci_write_dataport(SDHCIState *s, uint32_t value, unsigned size)
/* Check that there is free space left in a buffer */
if (!(s->prnsts & SDHC_SPACE_AVAILABLE)) {
ERRPRINT("Can't write to data buffer: buffer full\n");
trace_sdhci_error("Can't write to data buffer: buffer full");
return;
}
@ -466,8 +442,7 @@ static void sdhci_write_dataport(SDHCIState *s, uint32_t value, unsigned size)
s->data_count++;
value >>= 8;
if (s->data_count >= (s->blksize & 0x0fff)) {
DPRINT_L2("write buffer filled with %u bytes of data\n",
s->data_count);
trace_sdhci_write_dataport(s->data_count);
s->data_count = 0;
s->prnsts &= ~SDHC_SPACE_AVAILABLE;
if (s->prnsts & SDHC_DOING_WRITE) {
@ -655,15 +630,14 @@ static void sdhci_do_adma(SDHCIState *s)
{
unsigned int n, begin, length;
const uint16_t block_size = s->blksize & 0x0fff;
ADMADescr dscr;
ADMADescr dscr = {};
int i;
for (i = 0; i < SDHC_ADMA_DESCS_PER_DELAY; ++i) {
s->admaerr &= ~SDHC_ADMAERR_LENGTH_MISMATCH;
get_adma_description(s, &dscr);
DPRINT_L2("ADMA loop: addr=" TARGET_FMT_plx ", len=%d, attr=%x\n",
dscr.addr, dscr.length, dscr.attr);
trace_sdhci_adma_loop(dscr.addr, dscr.length, dscr.attr);
if ((dscr.attr & SDHC_ADMA_ATTR_VALID) == 0) {
/* Indicate that error occurred in ST_FDS state */
@ -746,8 +720,7 @@ static void sdhci_do_adma(SDHCIState *s)
break;
case SDHC_ADMA_ATTR_ACT_LINK: /* link to next descriptor table */
s->admasysaddr = dscr.addr;
DPRINT_L1("ADMA link: admasysaddr=0x%" PRIx64 "\n",
s->admasysaddr);
trace_sdhci_adma("link", s->admasysaddr);
break;
default:
s->admasysaddr += dscr.incr;
@ -755,8 +728,7 @@ static void sdhci_do_adma(SDHCIState *s)
}
if (dscr.attr & SDHC_ADMA_ATTR_INT) {
DPRINT_L1("ADMA interrupt: admasysaddr=0x%" PRIx64 "\n",
s->admasysaddr);
trace_sdhci_adma("interrupt", s->admasysaddr);
if (s->norintstsen & SDHC_NISEN_DMA) {
s->norintsts |= SDHC_NIS_DMA;
}
@ -767,15 +739,15 @@ static void sdhci_do_adma(SDHCIState *s)
/* ADMA transfer terminates if blkcnt == 0 or by END attribute */
if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
(s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) {
DPRINT_L2("ADMA transfer completed\n");
trace_sdhci_adma_transfer_completed();
if (length || ((dscr.attr & SDHC_ADMA_ATTR_END) &&
(s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
s->blkcnt != 0)) {
ERRPRINT("SD/MMC host ADMA length mismatch\n");
trace_sdhci_error("SD/MMC host ADMA length mismatch");
s->admaerr |= SDHC_ADMAERR_LENGTH_MISMATCH |
SDHC_ADMAERR_STATE_ST_TFR;
if (s->errintstsen & SDHC_EISEN_ADMAERR) {
ERRPRINT("Set ADMA error flag\n");
trace_sdhci_error("Set ADMA error flag");
s->errintsts |= SDHC_EIS_ADMAERR;
s->norintsts |= SDHC_NIS_ERR;
}
@ -811,7 +783,7 @@ static void sdhci_data_transfer(void *opaque)
break;
case SDHC_CTRL_ADMA1_32:
if (!(s->capareg & SDHC_CAN_DO_ADMA1)) {
ERRPRINT("ADMA1 not supported\n");
trace_sdhci_error("ADMA1 not supported");
break;
}
@ -819,7 +791,7 @@ static void sdhci_data_transfer(void *opaque)
break;
case SDHC_CTRL_ADMA2_32:
if (!(s->capareg & SDHC_CAN_DO_ADMA2)) {
ERRPRINT("ADMA2 not supported\n");
trace_sdhci_error("ADMA2 not supported");
break;
}
@ -828,14 +800,14 @@ static void sdhci_data_transfer(void *opaque)
case SDHC_CTRL_ADMA2_64:
if (!(s->capareg & SDHC_CAN_DO_ADMA2) ||
!(s->capareg & SDHC_64_BIT_BUS_SUPPORT)) {
ERRPRINT("64 bit ADMA not supported\n");
trace_sdhci_error("64 bit ADMA not supported");
break;
}
sdhci_do_adma(s);
break;
default:
ERRPRINT("Unsupported DMA type\n");
trace_sdhci_error("Unsupported DMA type");
break;
}
} else {
@ -870,8 +842,8 @@ static inline bool
sdhci_buff_access_is_sequential(SDHCIState *s, unsigned byte_num)
{
if ((s->data_count & 0x3) != byte_num) {
ERRPRINT("Non-sequential access to Buffer Data Port register"
"is prohibited\n");
trace_sdhci_error("Non-sequential access to Buffer Data Port register"
"is prohibited\n");
return false;
}
return true;
@ -901,8 +873,7 @@ static uint64_t sdhci_read(void *opaque, hwaddr offset, unsigned size)
case SDHC_BDATA:
if (sdhci_buff_access_is_sequential(s, offset - SDHC_BDATA)) {
ret = sdhci_read_dataport(s, size);
DPRINT_L2("read %ub: addr[0x%04x] -> %u(0x%x)\n", size, (int)offset,
ret, ret);
trace_sdhci_access("rd", size << 3, offset, "->", ret, ret);
return ret;
}
break;
@ -954,7 +925,7 @@ static uint64_t sdhci_read(void *opaque, hwaddr offset, unsigned size)
ret >>= (offset & 0x3) * 8;
ret &= (1ULL << (size * 8)) - 1;
DPRINT_L2("read %ub: addr[0x%04x] -> %u(0x%x)\n", size, (int)offset, ret, ret);
trace_sdhci_access("rd", size << 3, offset, "->", ret, ret);
return ret;
}
@ -1158,8 +1129,8 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
"not implemented\n", size, offset, value >> shift);
break;
}
DPRINT_L2("write %ub: addr[0x%04x] <- %u(0x%x)\n",
size, (int)offset, value >> shift, value >> shift);
trace_sdhci_access("wr", size << 3, offset, "<-",
value >> shift, value >> shift);
}
static const MemoryRegionOps sdhci_mmio_ops = {

14
hw/sd/trace-events
View File

@ -1,5 +1,19 @@
# See docs/devel/tracing.txt for syntax documentation.
# hw/sd/sdhci.c
sdhci_set_inserted(const char *level) "card state changed: %s"
sdhci_send_command(uint8_t cmd, uint32_t arg) "CMD%02u ARG[0x%08x]"
sdhci_error(const char *msg) "%s"
sdhci_response4(uint32_t r0) "RSPREG[31..0]=0x%08x"
sdhci_response16(uint32_t r3, uint32_t r2, uint32_t r1, uint32_t r0) "RSPREG[127..96]=0x%08x, RSPREG[95..64]=0x%08x, RSPREG[63..32]=0x%08x, RSPREG[31..0]=0x%08x"
sdhci_end_transfer(uint8_t cmd, uint32_t arg) "Automatically issue CMD%02u 0x%08x"
sdhci_adma(const char *desc, uint32_t sysad) "%s: admasysaddr=0x%" PRIx32
sdhci_adma_loop(uint64_t addr, uint16_t length, uint8_t attr) "addr=0x%08" PRIx64 ", len=%d, attr=0x%x"
sdhci_adma_transfer_completed(void) ""
sdhci_access(const char *access, unsigned int size, uint64_t offset, const char *dir, uint64_t val, uint64_t val2) "%s%u: addr[0x%04" PRIx64 "] %s 0x%08" PRIx64 " (%" PRIu64 ")"
sdhci_read_dataport(uint16_t data_count) "all %u bytes of data have been read from input buffer"
sdhci_write_dataport(uint16_t data_count) "write buffer filled with %u bytes of data"
# hw/sd/milkymist-memcard.c
milkymist_memcard_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
milkymist_memcard_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"