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[v3,5/5] drm/amdgpu: Create version number for coredumps

Message ID 20230714161128.69545-6-andrealmeid@igalia.com (mailing list archive)
State New, archived
Headers show
Series drm/amdgpu: Add new reset option and rework coredump | expand

Commit Message

André Almeida July 14, 2023, 4:11 p.m. UTC
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@igalia.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 3 +++
 2 files changed, 4 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
index 081cdf3bc267..dab385f9dd80 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
@@ -192,6 +192,7 @@  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);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
index 362954521721..7b6767ca8127 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
@@ -88,6 +88,9 @@  struct amdgpu_reset_domain {
 };
 
 #ifdef CONFIG_DEV_COREDUMP
+
+#define AMDGPU_COREDUMP_VERSION "1"
+
 struct amdgpu_coredump_info {
 	struct amdgpu_device		*adev;
 	struct amdgpu_task_info         reset_task_info;