[Intel-gfx] [PATCH 2/3] drm/i915: move gpu error debugfs to i915_gpu_error.c
Jani Nikula
jani.nikula at intel.com
Wed Oct 11 16:38:29 UTC 2023
Hide gpu error specifics in i915_gpu_error.c. This is also cleaner wrt
conditional compilation, as i915_gpu_error.c is only built with
DRM_I915_CAPTURE_ERROR=y.
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 108 +------------------------
drivers/gpu/drm/i915/i915_gpu_error.c | 111 +++++++++++++++++++++++++-
drivers/gpu/drm/i915/i915_gpu_error.h | 8 +-
3 files changed, 119 insertions(+), 108 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e9b79c2c37d8..beffac46a5e2 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -49,6 +49,7 @@
#include "i915_debugfs.h"
#include "i915_debugfs_params.h"
#include "i915_driver.h"
+#include "i915_gpu_error.h"
#include "i915_irq.h"
#include "i915_reg.h"
#include "i915_scheduler.h"
@@ -297,107 +298,6 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
return 0;
}
-#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
-static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
- size_t count, loff_t *pos)
-{
- struct i915_gpu_coredump *error;
- ssize_t ret;
- void *buf;
-
- error = file->private_data;
- if (!error)
- return 0;
-
- /* Bounce buffer required because of kernfs __user API convenience. */
- buf = kmalloc(count, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- ret = i915_gpu_coredump_copy_to_buffer(error, buf, *pos, count);
- if (ret <= 0)
- goto out;
-
- if (!copy_to_user(ubuf, buf, ret))
- *pos += ret;
- else
- ret = -EFAULT;
-
-out:
- kfree(buf);
- return ret;
-}
-
-static int gpu_state_release(struct inode *inode, struct file *file)
-{
- i915_gpu_coredump_put(file->private_data);
- return 0;
-}
-
-static int i915_gpu_info_open(struct inode *inode, struct file *file)
-{
- struct drm_i915_private *i915 = inode->i_private;
- struct i915_gpu_coredump *gpu;
- intel_wakeref_t wakeref;
-
- gpu = NULL;
- with_intel_runtime_pm(&i915->runtime_pm, wakeref)
- gpu = i915_gpu_coredump(to_gt(i915), ALL_ENGINES, CORE_DUMP_FLAG_NONE);
-
- if (IS_ERR(gpu))
- return PTR_ERR(gpu);
-
- file->private_data = gpu;
- return 0;
-}
-
-static const struct file_operations i915_gpu_info_fops = {
- .owner = THIS_MODULE,
- .open = i915_gpu_info_open,
- .read = gpu_state_read,
- .llseek = default_llseek,
- .release = gpu_state_release,
-};
-
-static ssize_t
-i915_error_state_write(struct file *filp,
- const char __user *ubuf,
- size_t cnt,
- loff_t *ppos)
-{
- struct i915_gpu_coredump *error = filp->private_data;
-
- if (!error)
- return 0;
-
- drm_dbg(&error->i915->drm, "Resetting error state\n");
- i915_reset_error_state(error->i915);
-
- return cnt;
-}
-
-static int i915_error_state_open(struct inode *inode, struct file *file)
-{
- struct i915_gpu_coredump *error;
-
- error = i915_first_error_state(inode->i_private);
- if (IS_ERR(error))
- return PTR_ERR(error);
-
- file->private_data = error;
- return 0;
-}
-
-static const struct file_operations i915_error_state_fops = {
- .owner = THIS_MODULE,
- .open = i915_error_state_open,
- .read = gpu_state_read,
- .write = i915_error_state_write,
- .llseek = default_llseek,
- .release = gpu_state_release,
-};
-#endif
-
static int i915_frequency_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
@@ -837,10 +737,6 @@ static const struct i915_debugfs_files {
{"i915_perf_noa_delay", &i915_perf_noa_delay_fops},
{"i915_wedged", &i915_wedged_fops},
{"i915_gem_drop_caches", &i915_drop_caches_fops},
-#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
- {"i915_error_state", &i915_error_state_fops},
- {"i915_gpu_info", &i915_gpu_info_fops},
-#endif
};
void i915_debugfs_register(struct drm_i915_private *dev_priv)
@@ -863,4 +759,6 @@ void i915_debugfs_register(struct drm_i915_private *dev_priv)
drm_debugfs_create_files(i915_debugfs_list,
ARRAY_SIZE(i915_debugfs_list),
minor->debugfs_root, minor);
+
+ i915_gpu_error_debugfs_register(dev_priv);
}
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index db7ac28c44e5..b4c8459deb7b 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -2137,7 +2137,7 @@ __i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 du
return error;
}
-struct i915_gpu_coredump *
+static struct i915_gpu_coredump *
i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 dump_flags)
{
static DEFINE_MUTEX(capture_mutex);
@@ -2375,3 +2375,112 @@ void intel_klog_error_capture(struct intel_gt *gt,
drm_info(&i915->drm, "[Capture/%d.%d] Dumped %zd bytes\n", l_count, line++, pos_err);
}
#endif
+
+static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *pos)
+{
+ struct i915_gpu_coredump *error;
+ ssize_t ret;
+ void *buf;
+
+ error = file->private_data;
+ if (!error)
+ return 0;
+
+ /* Bounce buffer required because of kernfs __user API convenience. */
+ buf = kmalloc(count, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = i915_gpu_coredump_copy_to_buffer(error, buf, *pos, count);
+ if (ret <= 0)
+ goto out;
+
+ if (!copy_to_user(ubuf, buf, ret))
+ *pos += ret;
+ else
+ ret = -EFAULT;
+
+out:
+ kfree(buf);
+ return ret;
+}
+
+static int gpu_state_release(struct inode *inode, struct file *file)
+{
+ i915_gpu_coredump_put(file->private_data);
+ return 0;
+}
+
+static int i915_gpu_info_open(struct inode *inode, struct file *file)
+{
+ struct drm_i915_private *i915 = inode->i_private;
+ struct i915_gpu_coredump *gpu;
+ intel_wakeref_t wakeref;
+
+ gpu = NULL;
+ with_intel_runtime_pm(&i915->runtime_pm, wakeref)
+ gpu = i915_gpu_coredump(to_gt(i915), ALL_ENGINES, CORE_DUMP_FLAG_NONE);
+
+ if (IS_ERR(gpu))
+ return PTR_ERR(gpu);
+
+ file->private_data = gpu;
+ return 0;
+}
+
+static const struct file_operations i915_gpu_info_fops = {
+ .owner = THIS_MODULE,
+ .open = i915_gpu_info_open,
+ .read = gpu_state_read,
+ .llseek = default_llseek,
+ .release = gpu_state_release,
+};
+
+static ssize_t
+i915_error_state_write(struct file *filp,
+ const char __user *ubuf,
+ size_t cnt,
+ loff_t *ppos)
+{
+ struct i915_gpu_coredump *error = filp->private_data;
+
+ if (!error)
+ return 0;
+
+ drm_dbg(&error->i915->drm, "Resetting error state\n");
+ i915_reset_error_state(error->i915);
+
+ return cnt;
+}
+
+static int i915_error_state_open(struct inode *inode, struct file *file)
+{
+ struct i915_gpu_coredump *error;
+
+ error = i915_first_error_state(inode->i_private);
+ if (IS_ERR(error))
+ return PTR_ERR(error);
+
+ file->private_data = error;
+ return 0;
+}
+
+static const struct file_operations i915_error_state_fops = {
+ .owner = THIS_MODULE,
+ .open = i915_error_state_open,
+ .read = gpu_state_read,
+ .write = i915_error_state_write,
+ .llseek = default_llseek,
+ .release = gpu_state_release,
+};
+
+void i915_gpu_error_debugfs_register(struct drm_i915_private *i915)
+{
+ struct drm_minor *minor = i915->drm.primary;
+
+ debugfs_create_file("i915_error_state", 0644, minor->debugfs_root, i915,
+ &i915_error_state_fops);
+ debugfs_create_file("i915_gpu_info", 0644, minor->debugfs_root, i915,
+ &i915_gpu_info_fops);
+}
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h
index c982b162b7ff..a6f2a7518cf0 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.h
+++ b/drivers/gpu/drm/i915/i915_gpu_error.h
@@ -276,8 +276,6 @@ static inline void intel_klog_error_capture(struct intel_gt *gt,
__printf(2, 3)
void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
-struct i915_gpu_coredump *i915_gpu_coredump(struct intel_gt *gt,
- intel_engine_mask_t engine_mask, u32 dump_flags);
void i915_capture_error_state(struct intel_gt *gt,
intel_engine_mask_t engine_mask, u32 dump_flags);
@@ -329,6 +327,8 @@ struct i915_gpu_coredump *i915_first_error_state(struct drm_i915_private *i915);
void i915_reset_error_state(struct drm_i915_private *i915);
void i915_disable_error_state(struct drm_i915_private *i915, int err);
+void i915_gpu_error_debugfs_register(struct drm_i915_private *i915);
+
#else
__printf(2, 3)
@@ -411,6 +411,10 @@ static inline void i915_disable_error_state(struct drm_i915_private *i915,
{
}
+static inline void i915_gpu_error_debugfs_register(struct drm_i915_private *i915)
+{
+}
+
#endif /* IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) */
#endif /* _I915_GPU_ERROR_H_ */
--
2.39.2
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