[Qemu-devel] [PULL 02/27] hw/block/pflash: Simplify trace_pflash_io_read/write()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Call the read() trace function after the value is set, so we can
log the returned value.
Rename the I/O trace functions with '_io_' in their name.

Reviewed-by: Stephen Checkoway <stephen.checkoway@oberlin.edu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190627202719.17739-3-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/block/pflash_cfi01.c | 5 +++--
 hw/block/pflash_cfi02.c | 6 ++----
 hw/block/trace-events   | 4 ++--
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 35080d915f..74fc1bc2da 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -288,7 +288,6 @@ static uint32_t pflash_read(PFlashCFI01 *pfl, hwaddr offset,
     uint32_t ret;
 
     ret = -1;
-    trace_pflash_read(offset, pfl->cmd, width, pfl->wcycle);
     switch (pfl->cmd) {
     default:
         /* This should never happen : reset state & treat it as a read */
@@ -391,6 +390,8 @@ static uint32_t pflash_read(PFlashCFI01 *pfl, hwaddr offset,
 
         break;
     }
+    trace_pflash_io_read(offset, width, width << 1, ret, pfl->cmd, pfl->wcycle);
+
     return ret;
 }
 
@@ -453,7 +454,7 @@ static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
 
     cmd = value;
 
-    trace_pflash_write(offset, value, width, pfl->wcycle);
+    trace_pflash_io_write(offset, width, width << 1, value, pfl->wcycle);
     if (!pfl->wcycle) {
         /* Set the device in I/O access mode */
         memory_region_rom_device_set_romd(&pfl->mem, false);
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index eb106f4996..f05cd507b3 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -145,7 +145,6 @@ static uint32_t pflash_read(PFlashCFI02 *pfl, hwaddr offset,
     uint8_t *p;
 
     ret = -1;
-    trace_pflash_read(offset, pfl->cmd, width, pfl->wcycle);
     /* Lazy reset to ROMD mode after a certain amount of read accesses */
     if (!pfl->rom_mode && pfl->wcycle == 0 &&
         ++pfl->read_counter > PFLASH_LAZY_ROMD_THRESHOLD) {
@@ -241,6 +240,7 @@ static uint32_t pflash_read(PFlashCFI02 *pfl, hwaddr offset,
         }
         break;
     }
+    trace_pflash_io_read(offset, width, width << 1, ret, pfl->cmd, pfl->wcycle);
 
     return ret;
 }
@@ -267,6 +267,7 @@ static void pflash_write(PFlashCFI02 *pfl, hwaddr offset,
     uint8_t *p;
     uint8_t cmd;
 
+    trace_pflash_io_write(offset, width, width << 1, value, pfl->wcycle);
     cmd = value;
     if (pfl->cmd != 0xA0 && cmd == 0xF0) {
 #if 0
@@ -275,11 +276,8 @@ static void pflash_write(PFlashCFI02 *pfl, hwaddr offset,
 #endif
         goto reset_flash;
     }
-    trace_pflash_write(offset, value, width, pfl->wcycle);
     offset &= pfl->chip_len - 1;
 
-    DPRINTF("%s: offset " TARGET_FMT_plx " %08x %d\n", __func__,
-            offset, value, width);
     boff = offset & (pfl->sector_len - 1);
     if (pfl->width == 2)
         boff = boff >> 1;
diff --git a/hw/block/trace-events b/hw/block/trace-events
index 97a17838ed..f637fe918e 100644
--- a/hw/block/trace-events
+++ b/hw/block/trace-events
@@ -7,9 +7,9 @@ fdc_ioport_write(uint8_t reg, uint8_t value) "write reg 0x%02x val 0x%02x"
 # pflash_cfi02.c
 # pflash_cfi01.c
 pflash_reset(void) "reset"
-pflash_read(uint64_t offset, uint8_t cmd, int width, uint8_t wcycle) "offset:0x%04"PRIx64" cmd:0x%02x width:%d wcycle:%u"
-pflash_write(uint64_t offset, uint32_t value, int width, uint8_t wcycle) "offset:0x%04"PRIx64" value:0x%03x width:%d wcycle:%u"
 pflash_timer_expired(uint8_t cmd) "command 0x%02x done"
+pflash_io_read(uint64_t offset, int width, int fmt_width, uint32_t value, uint8_t cmd, uint8_t wcycle) "offset:0x%04"PRIx64" width:%d value:0x%0*x cmd:0x%02x wcycle:%u"
+pflash_io_write(uint64_t offset, int width, int fmt_width, uint32_t value, uint8_t wcycle) "offset:0x%04"PRIx64" width:%d value:0x%0*x wcycle:%u"
 pflash_data_read8(uint64_t offset, uint32_t value) "data offset:0x%04"PRIx64" value:0x%02x"
 pflash_data_read16(uint64_t offset, uint32_t value) "data offset:0x%04"PRIx64" value:0x%04x"
 pflash_data_read32(uint64_t offset, uint32_t value) "data offset:0x%04"PRIx64" value:0x%08x"
-- 
2.20.1