Re: [PATCH v4 3/4] drm/amdgpu: Move coredump code to amdgpu_reset file

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Am 15.08.23 um 21:50 schrieb André Almeida:
Giving that we use codedump just for device resets, move it's functions
and structs to a more semantic file, the amdgpu_reset.{c, h}.

Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx> for this patch here.

I'm going to push patch #1 from this series into our internal branch since that is actually a bug fix.

From my side the rest looks good as well, but going to leave this here on the list until Shashank had time to take a look as well.

Thanks,
Christian.

---
  drivers/gpu/drm/amd/amdgpu/amdgpu.h        |  9 ---
  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 78 ----------------------
  drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c  | 76 +++++++++++++++++++++
  drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h  | 11 +++
  4 files changed, 87 insertions(+), 87 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 0d560b713948..314b06cddc39 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1100,15 +1100,6 @@ struct amdgpu_device {
  	uint32_t			aid_mask;
  };
-#ifdef CONFIG_DEV_COREDUMP
-struct amdgpu_coredump_info {
-	struct amdgpu_device		*adev;
-	struct amdgpu_task_info         reset_task_info;
-	struct timespec64               reset_time;
-	bool                            reset_vram_lost;
-};
-#endif
-
  static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
  {
  	return container_of(ddev, struct amdgpu_device, ddev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index b5b879bcc5c9..9706f608723a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -32,8 +32,6 @@
  #include <linux/slab.h>
  #include <linux/iommu.h>
  #include <linux/pci.h>
-#include <linux/devcoredump.h>
-#include <generated/utsrelease.h>
  #include <linux/pci-p2pdma.h>
  #include <linux/apple-gmux.h>
@@ -4799,82 +4797,6 @@ static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev)
  	return 0;
  }
-#ifndef CONFIG_DEV_COREDUMP
-static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
-			    struct amdgpu_reset_context *reset_context)
-{
-}
-#else
-static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset,
-		size_t count, void *data, size_t datalen)
-{
-	struct drm_printer p;
-	struct amdgpu_coredump_info *coredump = data;
-	struct drm_print_iterator iter;
-	int i;
-
-	iter.data = buffer;
-	iter.offset = 0;
-	iter.start = offset;
-	iter.remain = count;
-
-	p = drm_coredump_printer(&iter);
-
-	drm_printf(&p, "**** AMDGPU Device Coredump ****\n");
-	drm_printf(&p, "kernel: " UTS_RELEASE "\n");
-	drm_printf(&p, "module: " KBUILD_MODNAME "\n");
-	drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec);
-	if (coredump->reset_task_info.pid)
-		drm_printf(&p, "process_name: %s PID: %d\n",
-			   coredump->reset_task_info.process_name,
-			   coredump->reset_task_info.pid);
-
-	if (coredump->reset_vram_lost)
-		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
-	if (coredump->adev->num_regs) {
-		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
-
-		for (i = 0; i < coredump->adev->num_regs; i++)
-			drm_printf(&p, "0x%08x: 0x%08x\n",
-				   coredump->adev->reset_dump_reg_list[i],
-				   coredump->adev->reset_dump_reg_value[i]);
-	}
-
-	return count - iter.remain;
-}
-
-static void amdgpu_devcoredump_free(void *data)
-{
-	kfree(data);
-}
-
-static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
-			    struct amdgpu_reset_context *reset_context)
-{
-	struct amdgpu_coredump_info *coredump;
-	struct drm_device *dev = adev_to_drm(adev);
-
-	coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT);
-
-	if (!coredump) {
-		DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__);
-		return;
-	}
-
-	coredump->reset_vram_lost = vram_lost;
-
-	if (reset_context->job && reset_context->job->vm)
-		coredump->reset_task_info = reset_context->job->vm->task_info;
-
-	coredump->adev = adev;
-
-	ktime_get_ts64(&coredump->reset_time);
-
-	dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT,
-		      amdgpu_devcoredump_read, amdgpu_devcoredump_free);
-}
-#endif
-
  int amdgpu_do_asic_reset(struct list_head *device_list_handle,
  			 struct amdgpu_reset_context *reset_context)
  {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
index 5fed06ffcc6b..46c8d6ce349c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
@@ -21,6 +21,9 @@
   *
   */
+#include <linux/devcoredump.h>
+#include <generated/utsrelease.h>
+
  #include "amdgpu_reset.h"
  #include "aldebaran.h"
  #include "sienna_cichlid.h"
@@ -167,5 +170,78 @@ void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain)
  	up_write(&reset_domain->sem);
  }
+#ifndef CONFIG_DEV_COREDUMP
+void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
+		     struct amdgpu_reset_context *reset_context)
+{
+}
+#else
+static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset,
+		size_t count, void *data, size_t datalen)
+{
+	struct drm_printer p;
+	struct amdgpu_coredump_info *coredump = data;
+	struct drm_print_iterator iter;
+	int i;
+
+	iter.data = buffer;
+	iter.offset = 0;
+	iter.start = offset;
+	iter.remain = count;
+
+	p = drm_coredump_printer(&iter);
+
+	drm_printf(&p, "**** AMDGPU Device Coredump ****\n");
+	drm_printf(&p, "kernel: " UTS_RELEASE "\n");
+	drm_printf(&p, "module: " KBUILD_MODNAME "\n");
+	drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec);
+	if (coredump->reset_task_info.pid)
+		drm_printf(&p, "process_name: %s PID: %d\n",
+			   coredump->reset_task_info.process_name,
+			   coredump->reset_task_info.pid);
+
+	if (coredump->reset_vram_lost)
+		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
+	if (coredump->adev->num_regs) {
+		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
+
+		for (i = 0; i < coredump->adev->num_regs; i++)
+			drm_printf(&p, "0x%08x: 0x%08x\n",
+				   coredump->adev->reset_dump_reg_list[i],
+				   coredump->adev->reset_dump_reg_value[i]);
+	}
+
+	return count - iter.remain;
+}
+static void amdgpu_devcoredump_free(void *data)
+{
+	kfree(data);
+}
+void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
+			    struct amdgpu_reset_context *reset_context)
+{
+	struct amdgpu_coredump_info *coredump;
+	struct drm_device *dev = adev_to_drm(adev);
+
+	coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT);
+
+	if (!coredump) {
+		DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__);
+		return;
+	}
+
+	coredump->reset_vram_lost = vram_lost;
+
+	if (reset_context->job && reset_context->job->vm)
+		coredump->reset_task_info = reset_context->job->vm->task_info;
+
+	coredump->adev = adev;
+
+	ktime_get_ts64(&coredump->reset_time);
+
+	dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT,
+		      amdgpu_devcoredump_read, amdgpu_devcoredump_free);
+}
+#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
index f4a501ff87d9..362954521721 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
@@ -87,6 +87,15 @@ struct amdgpu_reset_domain {
  	atomic_t reset_res;
  };
+#ifdef CONFIG_DEV_COREDUMP
+struct amdgpu_coredump_info {
+	struct amdgpu_device		*adev;
+	struct amdgpu_task_info         reset_task_info;
+	struct timespec64               reset_time;
+	bool                            reset_vram_lost;
+};
+#endif
+
int amdgpu_reset_init(struct amdgpu_device *adev);
  int amdgpu_reset_fini(struct amdgpu_device *adev);
@@ -126,4 +135,6 @@ void amdgpu_device_lock_reset_domain(struct amdgpu_reset_domain *reset_domain);
void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain); +void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
+		     struct amdgpu_reset_context *reset_context);
  #endif




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