drm: misc cleanup

Add a new drm_debug bit for turning on DPCD logging, to aid debugging with troublesome monitors.

Signed-off-by Rob Clark <[email protected]>

---
 drivers/gpu/drm/drm_dp_helper.c | 66 ++++++++++++++++++++++++++++++++---------
 include/drm/drmP.h              |  6 ++++
 2 files changed, 58 insertions(+), 14 deletions(-)

drivers/gpu/drm/drm_dp_helper.c +52 -14

index 291734e..8e17f55 100644
@@ -159,6 +159,46 @@ int drm_dp_bw_code_to_link_rate(u8 link_bw)
 }
 EXPORT_SYMBOL(drm_dp_bw_code_to_link_rate);
 
+static ssize_t aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
+{
+	size_t ret;
+
+	mutex_lock(&aux->hw_mutex);
+
+	DRM_DEBUG_DPCD("%s: req=0x%02x, address=0x%05x, size=%zu\n", aux->name,
+			msg->request, msg->address, msg->size);
+	if (unlikely(drm_debug & DRM_UT_DPCD)) {
+		switch (msg->request & ~DP_AUX_I2C_MOT) {
+		case DP_AUX_NATIVE_WRITE:
+		case DP_AUX_I2C_WRITE:
+			print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+					16, 1, msg->buffer, msg->size, false);
+			break;
+		default:
+			break;
+		}
+	}
+
+	ret = aux->transfer(aux, msg);
+
+	DRM_DEBUG_DPCD("%s: reply=0x%02x, size=%zu\n", aux->name, msg->reply, ret);
+	if (unlikely(drm_debug & DRM_UT_DPCD)) {
+		switch (msg->request & ~DP_AUX_I2C_MOT) {
+		case DP_AUX_NATIVE_READ:
+		case DP_AUX_I2C_READ:
+			print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+					16, 1, msg->buffer, ret, false);
+			break;
+		default:
+			break;
+		}
+	}
+
+	mutex_unlock(&aux->hw_mutex);
+
+	return ret;
+}
+
 #define AUX_RETRY_INTERVAL 500 /* us */
 
 /**

@@ -194,9 +234,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	 */
 	for (retry = 0; retry < 32; retry++) {
 
-		mutex_lock(&aux->hw_mutex);
-		err = aux->transfer(aux, &msg);
-		mutex_unlock(&aux->hw_mutex);
+		err = aux_transfer(aux, &msg);
 		if (err < 0) {
 			if (err == -EBUSY)
 				continue;

@@ -212,15 +250,17 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 			return err;
 
 		case DP_AUX_NATIVE_REPLY_NACK:
+			DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", err, msg.size);
 			return -EIO;
 
 		case DP_AUX_NATIVE_REPLY_DEFER:
+			DRM_DEBUG_DPCD("native defer\n");
 			usleep_range(AUX_RETRY_INTERVAL, AUX_RETRY_INTERVAL + 100);
 			break;
 		}
 	}
 
-	DRM_DEBUG_KMS("too many retries, giving up\n");
+	DRM_DEBUG_DPCD("too many retries, giving up\n");
 	return -EIO;
 }
 

@@ -530,14 +570,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 	int max_retries = max(7, drm_dp_i2c_retry_count(msg, dp_aux_i2c_speed_khz));
 
 	for (retry = 0, defer_i2c = 0; retry < (max_retries + defer_i2c); retry++) {
-		mutex_lock(&aux->hw_mutex);
-		ret = aux->transfer(aux, msg);
-		mutex_unlock(&aux->hw_mutex);
+		ret = aux_transfer(aux, msg);
 		if (ret < 0) {
 			if (ret == -EBUSY)
 				continue;
 
-			DRM_DEBUG_KMS("transaction failed: %d\n", ret);
+			DRM_DEBUG_DPCD("transaction failed: %d\n", ret);
 			return ret;
 		}
 

@@ -551,11 +589,11 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 			break;
 
 		case DP_AUX_NATIVE_REPLY_NACK:
-			DRM_DEBUG_KMS("native nack (result=%d, size=%zu)\n", ret, msg->size);
+			DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", ret, msg->size);
 			return -EREMOTEIO;
 
 		case DP_AUX_NATIVE_REPLY_DEFER:
-			DRM_DEBUG_KMS("native defer\n");
+			DRM_DEBUG_DPCD("native defer\n");
 			/*
 			 * We could check for I2C bit rate capabilities and if
 			 * available adjust this interval. We could also be

@@ -582,12 +620,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 			return ret;
 
 		case DP_AUX_I2C_REPLY_NACK:
-			DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu\n", ret, msg->size);
+			DRM_DEBUG_DPCD("I2C nack (result=%d, size=%zu\n", ret, msg->size);
 			aux->i2c_nack_count++;
 			return -EREMOTEIO;
 
 		case DP_AUX_I2C_REPLY_DEFER:
-			DRM_DEBUG_KMS("I2C defer\n");
+			DRM_DEBUG_DPCD("I2C defer\n");
 			/* DP Compliance Test 4.2.2.5 Requirement:
 			 * Must have at least 7 retries for I2C defers on the
 			 * transaction to pass this test

@@ -604,7 +642,7 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 		}
 	}
 
-	DRM_DEBUG_KMS("too many retries, giving up\n");
+	DRM_DEBUG_DPCD("too many retries, giving up\n");
 	return -EREMOTEIO;
 }
 

@@ -624,7 +662,7 @@ static int drm_dp_i2c_drain_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *o
 			return err == 0 ? -EPROTO : err;
 
 		if (err < msg.size && err < ret) {
-			DRM_DEBUG_KMS("Partial I2C reply: requested %zu bytes got %d bytes\n",
+			DRM_DEBUG_DPCD("Partial I2C reply: requested %zu bytes got %d bytes\n",
 				      msg.size, err);
 			ret = err;
 		}

include/drm/drmP.h +6 -0

index 8b5ce7c..f6c25cc 100644
@@ -125,6 +125,7 @@ struct dma_buf_attachment;
 #define DRM_UT_KMS		0x04
 #define DRM_UT_PRIME		0x08
 #define DRM_UT_ATOMIC		0x10
+#define DRM_UT_DPCD		0x20
 
 extern __printf(2, 3)
 void drm_ut_debug_printk(const char *function_name,

@@ -217,6 +218,11 @@ void drm_err(const char *format, ...);
 		if (unlikely(drm_debug & DRM_UT_ATOMIC))		\
 			drm_ut_debug_printk(__func__, fmt, ##args);	\
 	} while (0)
+#define DRM_DEBUG_DPCD(fmt, args...)					\
+	do {								\
+		if (unlikely(drm_debug & DRM_UT_DPCD))			\
+			drm_ut_debug_printk(__func__, fmt, ##args);	\
+	} while (0)
 
 /*@}*/
 

Signature · 6 lines

2.1.0

_______________________________________________
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[email protected]
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Quoted 2 lines · Rob Clark

Add a new drm_debug bit for turning on DPCD logging, to aid debugging with troublesome monitors.

I wish you could find some balance between having the error cases logged with normal kms debugging vs. having to have full blown aux traffic debugging to notice everything failed...

At the very least the "too many retries, giving up" should be included in KMS debugging, maybe more.

BR,
Jani.

Quoted 179 lines

Signed-off-by Rob Clark <[email protected]>

---
 drivers/gpu/drm/drm_dp_helper.c | 66 ++++++++++++++++++++++++++++++++---------
 include/drm/drmP.h              |  6 ++++
 2 files changed, 58 insertions(+), 14 deletions(-)

drivers/gpu/drm/drm_dp_helper.c +52 -14

index 291734e..8e17f55 100644
@@ -159,6 +159,46 @@ int drm_dp_bw_code_to_link_rate(u8 link_bw)
 }
 EXPORT_SYMBOL(drm_dp_bw_code_to_link_rate);
 
+static ssize_t aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
+{
+     size_t ret;
+
+     mutex_lock(&aux->hw_mutex);
+
+     DRM_DEBUG_DPCD("%s: req=0x%02x, address=0x%05x, size=%zu\n", aux->name,
+                     msg->request, msg->address, msg->size);
+     if (unlikely(drm_debug & DRM_UT_DPCD)) {
+             switch (msg->request & ~DP_AUX_I2C_MOT) {
+             case DP_AUX_NATIVE_WRITE:
+             case DP_AUX_I2C_WRITE:
+                     print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+                                     16, 1, msg->buffer, msg->size, false);
+                     break;
+             default:
+                     break;
+             }
+     }
+
+     ret = aux->transfer(aux, msg);
+
+     DRM_DEBUG_DPCD("%s: reply=0x%02x, size=%zu\n", aux->name, msg->reply, ret);
+     if (unlikely(drm_debug & DRM_UT_DPCD)) {
+             switch (msg->request & ~DP_AUX_I2C_MOT) {
+             case DP_AUX_NATIVE_READ:
+             case DP_AUX_I2C_READ:
+                     print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+                                     16, 1, msg->buffer, ret, false);
+                     break;
+             default:
+                     break;
+             }
+     }
+
+     mutex_unlock(&aux->hw_mutex);
+
+     return ret;
+}
+
 #define AUX_RETRY_INTERVAL 500 /* us */
 
 /**

@@ -194,9 +234,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
       */
      for (retry = 0; retry < 32; retry++) {
 
-             mutex_lock(&aux->hw_mutex);
-             err = aux->transfer(aux, &msg);
-             mutex_unlock(&aux->hw_mutex);
+             err = aux_transfer(aux, &msg);
              if (err < 0) {
                      if (err == -EBUSY)
                              continue;

@@ -212,15 +250,17 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
                      return err;
 
              case DP_AUX_NATIVE_REPLY_NACK:
+                     DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", err, msg.size);
                      return -EIO;
 
              case DP_AUX_NATIVE_REPLY_DEFER:
+                     DRM_DEBUG_DPCD("native defer\n");
                      usleep_range(AUX_RETRY_INTERVAL, AUX_RETRY_INTERVAL + 100);
                      break;
              }
      }
 
-     DRM_DEBUG_KMS("too many retries, giving up\n");
+     DRM_DEBUG_DPCD("too many retries, giving up\n");
      return -EIO;
 }
 

@@ -530,14 +570,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
      int max_retries = max(7, drm_dp_i2c_retry_count(msg, dp_aux_i2c_speed_khz));
 
      for (retry = 0, defer_i2c = 0; retry < (max_retries + defer_i2c); retry++) {
-             mutex_lock(&aux->hw_mutex);
-             ret = aux->transfer(aux, msg);
-             mutex_unlock(&aux->hw_mutex);
+             ret = aux_transfer(aux, msg);
              if (ret < 0) {
                      if (ret == -EBUSY)
                              continue;
 
-                     DRM_DEBUG_KMS("transaction failed: %d\n", ret);
+                     DRM_DEBUG_DPCD("transaction failed: %d\n", ret);
                      return ret;
              }
 

@@ -551,11 +589,11 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
                      break;
 
              case DP_AUX_NATIVE_REPLY_NACK:
-                     DRM_DEBUG_KMS("native nack (result=%d, size=%zu)\n", ret, msg->size);
+                     DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", ret, msg->size);
                      return -EREMOTEIO;
 
              case DP_AUX_NATIVE_REPLY_DEFER:
-                     DRM_DEBUG_KMS("native defer\n");
+                     DRM_DEBUG_DPCD("native defer\n");
                      /*
                       * We could check for I2C bit rate capabilities and if
                       * available adjust this interval. We could also be

@@ -582,12 +620,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
                      return ret;
 
              case DP_AUX_I2C_REPLY_NACK:
-                     DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu\n", ret, msg->size);
+                     DRM_DEBUG_DPCD("I2C nack (result=%d, size=%zu\n", ret, msg->size);
                      aux->i2c_nack_count++;
                      return -EREMOTEIO;
 
              case DP_AUX_I2C_REPLY_DEFER:
-                     DRM_DEBUG_KMS("I2C defer\n");
+                     DRM_DEBUG_DPCD("I2C defer\n");
                      /* DP Compliance Test 4.2.2.5 Requirement:
                       * Must have at least 7 retries for I2C defers on the
                       * transaction to pass this test

@@ -604,7 +642,7 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
              }
      }
 
-     DRM_DEBUG_KMS("too many retries, giving up\n");
+     DRM_DEBUG_DPCD("too many retries, giving up\n");
      return -EREMOTEIO;
 }
 

@@ -624,7 +662,7 @@ static int drm_dp_i2c_drain_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *o
                      return err == 0 ? -EPROTO : err;
 
              if (err < msg.size && err < ret) {
-                     DRM_DEBUG_KMS("Partial I2C reply: requested %zu bytes got %d bytes\n",
+                     DRM_DEBUG_DPCD("Partial I2C reply: requested %zu bytes got %d bytes\n",
                                    msg.size, err);
                      ret = err;
              }

include/drm/drmP.h +6 -1

index 8b5ce7c..f6c25cc 100644
@@ -125,6 +125,7 @@ struct dma_buf_attachment;
 #define DRM_UT_KMS           0x04
 #define DRM_UT_PRIME         0x08
 #define DRM_UT_ATOMIC                0x10
+#define DRM_UT_DPCD          0x20
 
 extern __printf(2, 3)
 void drm_ut_debug_printk(const char *function_name,

@@ -217,6 +218,11 @@ void drm_err(const char *format, ...);
              if (unlikely(drm_debug & DRM_UT_ATOMIC))                \
                      drm_ut_debug_printk(__func__, fmt, ##args);     \
      } while (0)
+#define DRM_DEBUG_DPCD(fmt, args...)                                 \
+     do {                                                            \
+             if (unlikely(drm_debug & DRM_UT_DPCD))                  \
+                     drm_ut_debug_printk(__func__, fmt, ##args);     \
+     } while (0)
 
 /*@}*/
 
--

2.1.0

Quoted 4 lines

_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel

--
Jani Nikula, Intel Open Source Technology Center

Quoted 4 lines · Jani Nikula

Quoted 2 lines · Rob Clark

Add a new drm_debug bit for turning on DPCD logging, to aid debugging with troublesome monitors.

Quoted 6 lines

I wish you could find some balance between having the error cases logged with normal kms debugging vs. having to have full blown aux traffic debugging to notice everything failed...

At the very least the "too many retries, giving up" should be included in KMS debugging, maybe more.

maybe that should be DRM_ERROR()? Not sure..

For what I was debugging I actually wanted to be able to turn on just the DPCD logging without having to turn on all the KMS debugging.. but I can understand the inverse..

BR,
-R

Quoted 190 lines

BR,
Jani.

Quoted 179 lines

Signed-off-by Rob Clark <[email protected]>

---
 drivers/gpu/drm/drm_dp_helper.c | 66 ++++++++++++++++++++++++++++++++---------
 include/drm/drmP.h              |  6 ++++
 2 files changed, 58 insertions(+), 14 deletions(-)

drivers/gpu/drm/drm_dp_helper.c +52 -14

index 291734e..8e17f55 100644
@@ -159,6 +159,46 @@ int drm_dp_bw_code_to_link_rate(u8 link_bw)
 }
 EXPORT_SYMBOL(drm_dp_bw_code_to_link_rate);
 
+static ssize_t aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
+{
+     size_t ret;
+
+     mutex_lock(&aux->hw_mutex);
+
+     DRM_DEBUG_DPCD("%s: req=0x%02x, address=0x%05x, size=%zu\n", aux->name,
+                     msg->request, msg->address, msg->size);
+     if (unlikely(drm_debug & DRM_UT_DPCD)) {
+             switch (msg->request & ~DP_AUX_I2C_MOT) {
+             case DP_AUX_NATIVE_WRITE:
+             case DP_AUX_I2C_WRITE:
+                     print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+                                     16, 1, msg->buffer, msg->size, false);
+                     break;
+             default:
+                     break;
+             }
+     }
+
+     ret = aux->transfer(aux, msg);
+
+     DRM_DEBUG_DPCD("%s: reply=0x%02x, size=%zu\n", aux->name, msg->reply, ret);
+     if (unlikely(drm_debug & DRM_UT_DPCD)) {
+             switch (msg->request & ~DP_AUX_I2C_MOT) {
+             case DP_AUX_NATIVE_READ:
+             case DP_AUX_I2C_READ:
+                     print_hex_dump(KERN_DEBUG, "DPCD: ", DUMP_PREFIX_OFFSET,
+                                     16, 1, msg->buffer, ret, false);
+                     break;
+             default:
+                     break;
+             }
+     }
+
+     mutex_unlock(&aux->hw_mutex);
+
+     return ret;
+}
+
 #define AUX_RETRY_INTERVAL 500 /* us */
 
 /**

@@ -194,9 +234,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
       */
      for (retry = 0; retry < 32; retry++) {
 
-             mutex_lock(&aux->hw_mutex);
-             err = aux->transfer(aux, &msg);
-             mutex_unlock(&aux->hw_mutex);
+             err = aux_transfer(aux, &msg);
              if (err < 0) {
                      if (err == -EBUSY)
                              continue;

@@ -212,15 +250,17 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
                      return err;
 
              case DP_AUX_NATIVE_REPLY_NACK:
+                     DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", err, msg.size);
                      return -EIO;
 
              case DP_AUX_NATIVE_REPLY_DEFER:
+                     DRM_DEBUG_DPCD("native defer\n");
                      usleep_range(AUX_RETRY_INTERVAL, AUX_RETRY_INTERVAL + 100);
                      break;
              }
      }
 
-     DRM_DEBUG_KMS("too many retries, giving up\n");
+     DRM_DEBUG_DPCD("too many retries, giving up\n");
      return -EIO;
 }
 

@@ -530,14 +570,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
      int max_retries = max(7, drm_dp_i2c_retry_count(msg, dp_aux_i2c_speed_khz));
 
      for (retry = 0, defer_i2c = 0; retry < (max_retries + defer_i2c); retry++) {
-             mutex_lock(&aux->hw_mutex);
-             ret = aux->transfer(aux, msg);
-             mutex_unlock(&aux->hw_mutex);
+             ret = aux_transfer(aux, msg);
              if (ret < 0) {
                      if (ret == -EBUSY)
                              continue;
 
-                     DRM_DEBUG_KMS("transaction failed: %d\n", ret);
+                     DRM_DEBUG_DPCD("transaction failed: %d\n", ret);
                      return ret;
              }
 

@@ -551,11 +589,11 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
                      break;
 
              case DP_AUX_NATIVE_REPLY_NACK:
-                     DRM_DEBUG_KMS("native nack (result=%d, size=%zu)\n", ret, msg->size);
+                     DRM_DEBUG_DPCD("native nack (result=%d, size=%zu)\n", ret, msg->size);
                      return -EREMOTEIO;
 
              case DP_AUX_NATIVE_REPLY_DEFER:
-                     DRM_DEBUG_KMS("native defer\n");
+                     DRM_DEBUG_DPCD("native defer\n");
                      /*
                       * We could check for I2C bit rate capabilities and if
                       * available adjust this interval. We could also be

@@ -582,12 +620,12 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
                      return ret;
 
              case DP_AUX_I2C_REPLY_NACK:
-                     DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu\n", ret, msg->size);
+                     DRM_DEBUG_DPCD("I2C nack (result=%d, size=%zu\n", ret, msg->size);
                      aux->i2c_nack_count++;
                      return -EREMOTEIO;
 
              case DP_AUX_I2C_REPLY_DEFER:
-                     DRM_DEBUG_KMS("I2C defer\n");
+                     DRM_DEBUG_DPCD("I2C defer\n");
                      /* DP Compliance Test 4.2.2.5 Requirement:
                       * Must have at least 7 retries for I2C defers on the
                       * transaction to pass this test

@@ -604,7 +642,7 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
              }
      }
 
-     DRM_DEBUG_KMS("too many retries, giving up\n");
+     DRM_DEBUG_DPCD("too many retries, giving up\n");
      return -EREMOTEIO;
 }
 

@@ -624,7 +662,7 @@ static int drm_dp_i2c_drain_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *o
                      return err == 0 ? -EPROTO : err;
 
              if (err < msg.size && err < ret) {
-                     DRM_DEBUG_KMS("Partial I2C reply: requested %zu bytes got %d bytes\n",
+                     DRM_DEBUG_DPCD("Partial I2C reply: requested %zu bytes got %d bytes\n",
                                    msg.size, err);
                      ret = err;
              }

include/drm/drmP.h +6 -1

index 8b5ce7c..f6c25cc 100644
@@ -125,6 +125,7 @@ struct dma_buf_attachment;
 #define DRM_UT_KMS           0x04
 #define DRM_UT_PRIME         0x08
 #define DRM_UT_ATOMIC                0x10
+#define DRM_UT_DPCD          0x20
 
 extern __printf(2, 3)
 void drm_ut_debug_printk(const char *function_name,

@@ -217,6 +218,11 @@ void drm_err(const char *format, ...);
              if (unlikely(drm_debug & DRM_UT_ATOMIC))                \
                      drm_ut_debug_printk(__func__, fmt, ##args);     \
      } while (0)
+#define DRM_DEBUG_DPCD(fmt, args...)                                 \
+     do {                                                            \
+             if (unlikely(drm_debug & DRM_UT_DPCD))                  \
+                     drm_ut_debug_printk(__func__, fmt, ##args);     \
+     } while (0)
 
 /*@}*/
 
--

2.1.0

Quoted 4 lines

_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel

--
Jani Nikula, Intel Open Source Technology Center

Drop unused drm_atomic and fix comment for drm_debug.

Signed-off-by Rob Clark <[email protected]>

---
 drivers/gpu/drm/drm_drv.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

drivers/gpu/drm/drm_drv.c +1 -3

index 53d09a1..3a8d598 100644
@@ -37,11 +37,9 @@
 #include "drm_legacy.h"
 #include "drm_internal.h"
 
-unsigned int drm_debug = 0;	/* 1 to enable debug output */
+unsigned int drm_debug = 0;	/* bitmask of DRM_UT_x */
 EXPORT_SYMBOL(drm_debug);
 
-bool drm_atomic = 0;
-
 MODULE_AUTHOR(CORE_AUTHOR);
 MODULE_DESCRIPTION(CORE_DESC);
 MODULE_LICENSE("GPL and additional rights");

Signature · 6 lines

2.1.0

_______________________________________________
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