[PATCH v2 0/3] hw/misc: Replace DPRINTF with trace events for imx_ccm

[PATCH v2 0/3] hw/misc: Replace DPRINTF with trace events for imx_ccm

[jack wang]

This series replaces DPRINTF macros with trace events for imx_ccm, imx25_ccm and imx31_ccm.

v2 changes(based on feedback from v1 reviewer):
- Added missing Signed-off-by tags.
- Fixed code style space issue in imx_ccm.
- Dropped unnecessary uint32_t cast in imx25_ccm.


jack wang (3):
  hw/misc/imx_ccm: Replace DPRINTF with trace events
  hw/misc/imx25_ccm: Replace DPRINTF with trace events
  hw/misc/imx31_ccm: Replace DPRINTF with trace events

 hw/misc/imx25_ccm.c  | 36 +++++++++++-------------------------
 hw/misc/imx31_ccm.c  | 33 ++++++++++-----------------------
 hw/misc/imx_ccm.c    | 18 +++---------------
 hw/misc/trace-events | 23 +++++++++++++++++++++++
 4 files changed, 47 insertions(+), 63 deletions(-)

-- 
2.53.0

[PATCH v2 1/3] hw/misc/imx_ccm: Replace DPRINTF with trace events

[jack wang]

Signed-off-by: jack wang <163wangjack@gmail.com>
---
 hw/misc/imx_ccm.c    | 18 +++---------------
 hw/misc/trace-events |  4 ++++
 2 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
index 9403c5daa3..b77e9561bb 100644
--- a/hw/misc/imx_ccm.c
+++ b/hw/misc/imx_ccm.c
@@ -14,18 +14,7 @@
 #include "qemu/osdep.h"
 #include "hw/misc/imx_ccm.h"
 #include "qemu/module.h"
-
-#ifndef DEBUG_IMX_CCM
-#define DEBUG_IMX_CCM 0
-#endif
-
-#define DPRINTF(fmt, args...) \
-    do { \
-        if (DEBUG_IMX_CCM) { \
-            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_CCM, \
-                                             __func__, ##args); \
-        } \
-    } while (0)
+#include "hw/misc/trace.h"
 
 
 uint32_t imx_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
@@ -37,7 +26,7 @@ uint32_t imx_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
         freq = klass->get_clock_frequency(dev, clock);
     }
 
-    DPRINTF("(clock = %d) = %u\n", clock, freq);
+    trace_imx_ccm_get_clock_frequency(clock, freq);
 
     return freq;
 }
@@ -64,8 +53,7 @@ uint32_t imx_ccm_calc_pll(uint32_t pllreg, uint32_t base_freq)
     freq = ((2 * (base_freq >> 10) * (mfi * mfd + mfn)) /
             (mfd * pd)) << 10;
 
-    DPRINTF("(pllreg = 0x%08x, base_freq = %u) = %d\n", pllreg, base_freq,
-            freq);
+    trace_imx_ccm_calc_pll(pllreg, base_freq, freq);
 
     return freq;
 }
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index b88accc437..fdb4844045 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -237,6 +237,10 @@ iotkit_secctl_s_write(uint32_t offset, uint64_t data, unsigned size) "IoTKit Sec
 iotkit_secctl_ns_read(uint32_t offset, uint64_t data, unsigned size) "IoTKit SecCtl NS regs read: offset 0x%x data 0x%" PRIx64 " size %u"
 iotkit_secctl_ns_write(uint32_t offset, uint64_t data, unsigned size) "IoTKit SecCtl NS regs write: offset 0x%x data 0x%" PRIx64 " size %u"
 
+# imx_ccm.c
+imx_ccm_get_clock_frequency(uint32_t clock, uint32_t freq) "(clock = %u) = %u"
+imx_ccm_calc_pll(uint32_t pllreq, uint32_t base_freq, uint32_t freq) "(pllreg = 0x%08x, base_freq = %u) = %u"
+
 # imx6_ccm.c
 imx6_analog_get_periph_clk(uint32_t freq) "freq = %u Hz"
 imx6_analog_get_pll2_clk(uint32_t freq) "freq = %u Hz"
-- 
2.53.0

[PATCH v2 2/3] hw/misc/imx25_ccm: Replace DPRINTF with trace events

[jack wang]

Signed-off-by: jack wang <163wangjack@gmail.com>
---
 hw/misc/imx25_ccm.c  | 34 ++++++++++------------------------
 hw/misc/trace-events |  9 +++++++++
 2 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/hw/misc/imx25_ccm.c b/hw/misc/imx25_ccm.c
index a6665d5535..d051e8a2d1 100644
--- a/hw/misc/imx25_ccm.c
+++ b/hw/misc/imx25_ccm.c
@@ -16,18 +16,8 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "hw/misc/trace.h"
 
-#ifndef DEBUG_IMX25_CCM
-#define DEBUG_IMX25_CCM 0
-#endif
-
-#define DPRINTF(fmt, args...) \
-    do { \
-        if (DEBUG_IMX25_CCM) { \
-            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX25_CCM, \
-                                             __func__, ##args); \
-        } \
-    } while (0)
 
 static const char *imx25_ccm_reg_name(uint32_t reg)
 {
@@ -118,12 +108,12 @@ static uint32_t imx25_ccm_get_mpll_clk(IMXCCMState *dev)
         freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_MPCTL_REG], CKIH_FREQ);
     }
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx25_ccm_get_mpll_clk(freq);
 
     return freq;
 }
 
-static uint32_t imx25_ccm_get_mcu_clk(IMXCCMState *dev)
+static uint32_t imx25_ccm_get_mcu_clk(IMX25CCMState *dev)
 {
     uint32_t freq;
     IMX25CCMState *s = IMX25_CCM(dev);
@@ -136,7 +126,7 @@ static uint32_t imx25_ccm_get_mcu_clk(IMXCCMState *dev)
 
     freq = freq / (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], ARM_CLK_DIV));
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx25_ccm_get_mcu_clk(freq);
 
     return freq;
 }
@@ -149,7 +139,7 @@ static uint32_t imx25_ccm_get_ahb_clk(IMXCCMState *dev)
     freq = imx25_ccm_get_mcu_clk(dev)
            / (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], AHB_CLK_DIV));
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx25_ccm_get_ahb_clk(freq);
 
     return freq;
 }
@@ -160,7 +150,7 @@ static uint32_t imx25_ccm_get_ipg_clk(IMXCCMState *dev)
 
     freq = imx25_ccm_get_ahb_clk(dev) / 2;
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx25_ccm_get_ipg_clk(freq);
 
     return freq;
 }
@@ -168,7 +158,7 @@ static uint32_t imx25_ccm_get_ipg_clk(IMXCCMState *dev)
 static uint32_t imx25_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
 {
     uint32_t freq = 0;
-    DPRINTF("Clock = %d)\n", clock);
+    trace_imx25_ccm_get_clock_frequency(clock, freq);
 
     switch (clock) {
     case CLK_NONE:
@@ -186,7 +176,7 @@ static uint32_t imx25_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
         break;
     }
 
-    DPRINTF("Clock = %d) = %u\n", clock, freq);
+    trace_imx25_ccm_get_clock_frequency(clock, freq);
 
     return freq;
 }
@@ -195,8 +185,6 @@ static void imx25_ccm_reset(DeviceState *dev)
 {
     IMX25CCMState *s = IMX25_CCM(dev);
 
-    DPRINTF("\n");
-
     memset(s->reg, 0, IMX25_CCM_MAX_REG * sizeof(uint32_t));
     s->reg[IMX25_CCM_MPCTL_REG] = 0x800b2c01;
     s->reg[IMX25_CCM_UPCTL_REG] = 0x84042800;
@@ -238,8 +226,7 @@ static uint64_t imx25_ccm_read(void *opaque, hwaddr offset, unsigned size)
                       HWADDR_PRIx "\n", TYPE_IMX25_CCM, __func__, offset);
     }
 
-    DPRINTF("reg[%s] => 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
-            value);
+    trace_imx25_ccm_read(imx25_ccm_reg_name(offset >> 2), value);
 
     return value;
 }
@@ -249,8 +236,7 @@ static void imx25_ccm_write(void *opaque, hwaddr offset, uint64_t value,
 {
     IMX25CCMState *s = (IMX25CCMState *)opaque;
 
-    DPRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
-            (uint32_t)value);
+    trace_imx25_ccm_write(imx25_ccm_reg_name(offset >> 2), value);
 
     if (offset < 0x70) {
         /*
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index fdb4844045..ebe9b4fb22 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -273,6 +273,15 @@ imx6_src_reset(void) ""
 imx7_src_read(const char *reg_name, uint32_t value) "reg[%s] => 0x%" PRIx32
 imx7_src_write(const char *reg_name, uint32_t value) "reg[%s] <= 0x%" PRIx32
 
+# imx25_ccm.c
+imx25_ccm_get_mpll_clk(uint32_t freq) "freq = %u"
+imx25_ccm_get_mcu_clk(uint32_t freq) "freq = %u"
+imx25_ccm_get_ahb_clk(uint32_t freq) "freq = %u"
+imx25_ccm_get_ipg_clk(uint32_t freq) "freq = %u"
+imx25_ccm_get_clock_frequency(unsigned clock, uint32_t freq) "(clock = %d) = %u"
+imx25_ccm_read(const char *reg, uint32_t value) "reg[%s] => 0x%" PRIx32
+imx25_ccm_write(const char *reg, uint32_t value) "reg[%s] <= 0x%" PRIx32
+
 # iotkit-sysinfo.c
 iotkit_sysinfo_read(uint64_t offset, uint64_t data, unsigned size) "IoTKit SysInfo read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 iotkit_sysinfo_write(uint64_t offset, uint64_t data, unsigned size) "IoTKit SysInfo write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
-- 
2.53.0

[PATCH v2 3/3] hw/misc/imx31_ccm: Replace DPRINTF with trace events

[jack wang]

Signed-off-by: jack wang <163wangjack@gmail.com>
---
 hw/misc/imx25_ccm.c  |  2 +-
 hw/misc/imx31_ccm.c  | 33 ++++++++++-----------------------
 hw/misc/trace-events | 10 ++++++++++
 3 files changed, 21 insertions(+), 24 deletions(-)

diff --git a/hw/misc/imx25_ccm.c b/hw/misc/imx25_ccm.c
index d051e8a2d1..4ca4cb6672 100644
--- a/hw/misc/imx25_ccm.c
+++ b/hw/misc/imx25_ccm.c
@@ -102,7 +102,7 @@ static uint32_t imx25_ccm_get_mpll_clk(IMXCCMState *dev)
     uint32_t freq;
     IMX25CCMState *s = IMX25_CCM(dev);
 
-    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS)) {
+    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS)) 
         freq = CKIH_FREQ;
     } else {
         freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_MPCTL_REG], CKIH_FREQ);
diff --git a/hw/misc/imx31_ccm.c b/hw/misc/imx31_ccm.c
index 339458e859..e3edd6df8f 100644
--- a/hw/misc/imx31_ccm.c
+++ b/hw/misc/imx31_ccm.c
@@ -16,21 +16,10 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "hw/misc/trace.h"
 
 #define CKIH_FREQ 26000000 /* 26MHz crystal input */
 
-#ifndef DEBUG_IMX31_CCM
-#define DEBUG_IMX31_CCM 0
-#endif
-
-#define DPRINTF(fmt, args...) \
-    do { \
-        if (DEBUG_IMX31_CCM) { \
-            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX31_CCM, \
-                                             __func__, ##args); \
-        } \
-    } while (0)
-
 static const char *imx31_ccm_reg_name(uint32_t reg)
 {
     static char unknown[20];
@@ -120,7 +109,7 @@ static uint32_t imx31_ccm_get_pll_ref_clk(IMXCCMState *dev)
         freq = CKIH_FREQ;
     }
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx31_ccm_get_pll_ref_clk(freq);
 
     return freq;
 }
@@ -133,7 +122,7 @@ static uint32_t imx31_ccm_get_mpll_clk(IMXCCMState *dev)
     freq = imx_ccm_calc_pll(s->reg[IMX31_CCM_MPCTL_REG],
                             imx31_ccm_get_pll_ref_clk(dev));
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx31_ccm_get_mpll_clk(freq);
 
     return freq;
 }
@@ -150,7 +139,7 @@ static uint32_t imx31_ccm_get_mcu_main_clk(IMXCCMState *dev)
         freq = imx31_ccm_get_mpll_clk(dev);
     }
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx31_ccm_get_mcu_main_clk(freq);
 
     return freq;
 }
@@ -163,7 +152,7 @@ static uint32_t imx31_ccm_get_hclk_clk(IMXCCMState *dev)
     freq = imx31_ccm_get_mcu_main_clk(dev)
            / (1 + EXTRACT(s->reg[IMX31_CCM_PDR0_REG], MAX));
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx31_ccm_get_hclk_clk(freq);
 
     return freq;
 }
@@ -176,7 +165,7 @@ static uint32_t imx31_ccm_get_ipg_clk(IMXCCMState *dev)
     freq = imx31_ccm_get_hclk_clk(dev)
            / (1 + EXTRACT(s->reg[IMX31_CCM_PDR0_REG], IPG));
 
-    DPRINTF("freq = %u\n", freq);
+    trace_imx31_ccm_get_ipg_clk(freq);
 
     return freq;
 }
@@ -201,7 +190,7 @@ static uint32_t imx31_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
         break;
     }
 
-    DPRINTF("Clock = %d) = %u\n", clock, freq);
+    trace_imx31_ccm_get_clock_frequency(clock, freq);
 
     return freq;
 }
@@ -210,7 +199,7 @@ static void imx31_ccm_reset(DeviceState *dev)
 {
     IMX31CCMState *s = IMX31_CCM(dev);
 
-    DPRINTF("()\n");
+
 
     memset(s->reg, 0, sizeof(uint32_t) * IMX31_CCM_MAX_REG);
 
@@ -244,8 +233,7 @@ static uint64_t imx31_ccm_read(void *opaque, hwaddr offset, unsigned size)
                       HWADDR_PRIx "\n", TYPE_IMX31_CCM, __func__, offset);
     }
 
-    DPRINTF("reg[%s] => 0x%" PRIx32 "\n", imx31_ccm_reg_name(offset >> 2),
-            value);
+    trace_imx31_ccm_read(imx31_ccm_reg_name(offset >> 2), value);
 
     return (uint64_t)value;
 }
@@ -255,8 +243,7 @@ static void imx31_ccm_write(void *opaque, hwaddr offset, uint64_t value,
 {
     IMX31CCMState *s = (IMX31CCMState *)opaque;
 
-    DPRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx31_ccm_reg_name(offset >> 2),
-            (uint32_t)value);
+    trace_imx31_ccm_write(imx31_ccm_reg_name(offset >> 2), value);
 
     switch (offset >> 2) {
     case IMX31_CCM_CCMR_REG:
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index ebe9b4fb22..0c2565ddb8 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -282,6 +282,16 @@ imx25_ccm_get_clock_frequency(unsigned clock, uint32_t freq) "(clock = %d) = %u"
 imx25_ccm_read(const char *reg, uint32_t value) "reg[%s] => 0x%" PRIx32
 imx25_ccm_write(const char *reg, uint32_t value) "reg[%s] <= 0x%" PRIx32
 
+# imx31_ccm.c
+imx31_ccm_get_mpll_clk(uint32_t freq) "freq = %u"
+imx31_ccm_get_pll_ref_clk(uint32_t freq) "freq = %u"
+imx31_ccm_get_mcu_main_clk(uint32_t freq) "freq = %u"
+imx31_ccm_get_hclk_clk(uint32_t freq) "freq = %u"
+imx31_ccm_get_ipg_clk(uint32_t freq) "freq = %u"
+imx31_ccm_get_clock_frequency(unsigned clock, uint32_t freq) "(clock = %u) = %u"
+imx31_ccm_read(const char *reg, uint32_t value) "reg[%s] => 0x%" PRIx32
+imx31_ccm_write(const char *reg, uint32_t value) "reg[%s] <= 0x%" PRIx32
+
 # iotkit-sysinfo.c
 iotkit_sysinfo_read(uint64_t offset, uint64_t data, unsigned size) "IoTKit SysInfo read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 iotkit_sysinfo_write(uint64_t offset, uint64_t data, unsigned size) "IoTKit SysInfo write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
-- 
2.53.0

Re: [PATCH v2 0/3] hw/misc: Replace DPRINTF with trace events for imx_ccm

[Peter Maydell]

On Thu, 25 Jun 2026 at 17:02, jack wang <163wangjack@gmail.com> wrote:
>
> This series replaces DPRINTF macros with trace events for imx_ccm, imx25_ccm and imx31_ccm.
>
> v2 changes(based on feedback from v1 reviewer):
> - Added missing Signed-off-by tags.
> - Fixed code style space issue in imx_ccm.
> - Dropped unnecessary uint32_t cast in imx25_ccm.
>
>
> jack wang (3):
>   hw/misc/imx_ccm: Replace DPRINTF with trace events
>   hw/misc/imx25_ccm: Replace DPRINTF with trace events
>   hw/misc/imx31_ccm: Replace DPRINTF with trace events

I reviewed these but you have dropped all my
Reviewed-by tags...

https://www.qemu.org/docs/master/devel/submitting-a-patch.html#proper-use-of-reviewed-by-tags-can-aid-review

-- PMM

Re: [PATCH v2 3/3] hw/misc/imx31_ccm: Replace DPRINTF with trace events

[Peter Maydell]

On Thu, 25 Jun 2026 at 17:02, jack wang <163wangjack@gmail.com> wrote:
>
> Signed-off-by: jack wang <163wangjack@gmail.com>
> ---
>  hw/misc/imx25_ccm.c  |  2 +-
>  hw/misc/imx31_ccm.c  | 33 ++++++++++-----------------------
>  hw/misc/trace-events | 10 ++++++++++
>  3 files changed, 21 insertions(+), 24 deletions(-)
>
> diff --git a/hw/misc/imx25_ccm.c b/hw/misc/imx25_ccm.c
> index d051e8a2d1..4ca4cb6672 100644
> --- a/hw/misc/imx25_ccm.c
> +++ b/hw/misc/imx25_ccm.c
> @@ -102,7 +102,7 @@ static uint32_t imx25_ccm_get_mpll_clk(IMXCCMState *dev)
>      uint32_t freq;
>      IMX25CCMState *s = IMX25_CCM(dev);
>
> -    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS)) {
> +    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS))

This has lost the opening { -- does this even compile ?

>          freq = CKIH_FREQ;
>      } else {
>          freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_MPCTL_REG], CKIH_FREQ);

-- PMM