This is the generic SW part, prepare the event log buffer and dump it through debugfs
Signed-off-by: shaoyunl <shaoyun.liu@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 61 +++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 5 ++
4 files changed, 70 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index a53f436fa9f1..8b2cbeae99ca 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -2140,6 +2140,8 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
amdgpu_debugfs_firmware_init(adev);
amdgpu_ta_if_debugfs_init(adev);
+ amdgpu_debugfs_mes_event_log_init(adev);
+
#if defined(CONFIG_DRM_AMD_DC)
if (adev->dc_enabled)
dtn_debugfs_init(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h
index 371a6f0deb29..0425432d8659 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h
@@ -32,3 +32,5 @@ void amdgpu_debugfs_fini(struct amdgpu_device *adev);
void amdgpu_debugfs_fence_init(struct amdgpu_device *adev);
void amdgpu_debugfs_firmware_init(struct amdgpu_device *adev);
void amdgpu_debugfs_gem_init(struct amdgpu_device *adev);
+void amdgpu_debugfs_mes_event_log_init(struct amdgpu_device *adev);
+
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 45280fb0e00c..b7af24d7db0e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -97,6 +97,26 @@ static int amdgpu_mes_doorbell_init(struct amdgpu_device *adev)
return 0;
}
+static int amdgpu_mes_event_log_init(struct amdgpu_device *adev)
+{
+ int r;
+
+ r = amdgpu_bo_create_kernel(adev, PAGE_SIZE, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_GTT,
+ &adev->mes.event_log_gpu_obj,
+ &adev->mes.event_log_gpu_addr,
+ &adev->mes.event_log_cpu_addr);
+ if (r) {
+ dev_warn(adev->dev, "failed to create MES event log buffer (%d)", r);
+ return r;
+ }
+
+ memset(adev->mes.event_log_cpu_addr, 0, PAGE_SIZE);
+
+ return 0;
+
+}
+
static void amdgpu_mes_doorbell_free(struct amdgpu_device *adev)
{
bitmap_free(adev->mes.doorbell_bitmap);
@@ -181,6 +201,12 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
if (r)
goto error;
+ r = amdgpu_mes_event_log_init(adev);
+ if (r) {
+ amdgpu_mes_doorbell_free(adev);
+ goto error;
+ }
+
return 0;
error:
@@ -198,6 +224,10 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
void amdgpu_mes_fini(struct amdgpu_device *adev)
{
+ amdgpu_bo_free_kernel(&adev->mes.event_log_gpu_obj,
+ &adev->mes.event_log_gpu_addr,
+ &adev->mes.event_log_cpu_addr);
+
amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
amdgpu_device_wb_free(adev, adev->mes.query_status_fence_offs);
amdgpu_device_wb_free(adev, adev->mes.read_val_offs);
@@ -1483,3 +1513,34 @@ int amdgpu_mes_init_microcode(struct amdgpu_device *adev, int pipe)
amdgpu_ucode_release(&adev->mes.fw[pipe]);
return r;
}
+
+#if defined(CONFIG_DEBUG_FS)
+
+static int amdgpu_debugfs_mes_event_log_show(struct seq_file *m, void *unused)
+{
+ struct amdgpu_device *adev = m->private;
+ uint32_t *mem = (uint32_t *)(adev->mes.event_log_cpu_addr);
+
+ seq_hex_dump(m, "", DUMP_PREFIX_OFFSET, 32, 4,
+ mem, PAGE_SIZE, false);
+
+ return 0;
+}
+
+
+DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_mes_event_log);
+
+#endif
+
+void amdgpu_debugfs_mes_event_log_init(struct amdgpu_device *adev)
+{
+
+#if defined(CONFIG_DEBUG_FS)
+ struct drm_minor *minor = adev_to_drm(adev)->primary;
+ struct dentry *root = minor->debugfs_root;
+
+ debugfs_create_file("amdgpu_mes_event_log", 0444, root,
+ adev, &amdgpu_debugfs_mes_event_log_fops);
+
+#endif
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index a27b424ffe00..894b9b133000 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -133,6 +133,11 @@ struct amdgpu_mes {
uint32_t num_mes_dbs;
unsigned long *doorbell_bitmap;
+ /* MES event log buffer */
+ struct amdgpu_bo *event_log_gpu_obj;
+ uint64_t event_log_gpu_addr;
+ void *event_log_cpu_addr;
+
/* ip specific functions */
const struct amdgpu_mes_funcs *funcs;
};
--
2.34.1
