[PATCH 6/6] drm/amdgpu: Create version number for coredumps

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Even if there's nothing currently parsing amdgpu's coredump files, if
we eventually have such tools they will be glad to find a version field
to properly read the file.

Create a version number to be displayed on top of coredump file, to be
incremented when the file format or content get changed.

Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h        | 3 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index cfeaf93934fd..905574acf3a0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1081,6 +1081,9 @@ struct amdgpu_device {
 };
 
 #ifdef CONFIG_DEV_COREDUMP
+
+#define AMDGPU_COREDUMP_VERSION "1"
+
 struct amdgpu_coredump_info {
 	struct amdgpu_device		*adev;
 	struct amdgpu_task_info         reset_task_info;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 38d03ca7a9fc..7b448e189717 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4985,6 +4985,7 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset,
 	p = drm_coredump_printer(&iter);
 
 	drm_printf(&p, "**** AMDGPU Device Coredump ****\n");
+	drm_printf(&p, "version: " AMDGPU_COREDUMP_VERSION "\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);
-- 
2.41.0




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