On Tue, 20 Jun 2023, André Almeida <andrealmeid@xxxxxxxxxx> wrote:
> Implement get_reset ioctl for i915.
>
> Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gem/i915_gem_context.c | 18 ++++++++++++++++++
> drivers/gpu/drm/i915/gem/i915_gem_context.h | 2 ++
> .../gpu/drm/i915/gem/i915_gem_context_types.h | 2 ++
> drivers/gpu/drm/i915/i915_driver.c | 2 ++
> 4 files changed, 24 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> index 9a9ff84c90d7..fba8c9bbc7e9 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> @@ -1666,6 +1666,8 @@ i915_gem_create_context(struct drm_i915_private *i915,
> ctx->uses_protected_content = true;
> }
>
> + ctx->dev_reset_counter = i915_reset_count(&i915->gpu_error);
> +
> trace_i915_context_create(ctx);
>
> return ctx;
> @@ -2558,6 +2560,22 @@ int i915_gem_context_reset_stats_ioctl(struct drm_device *dev,
> return 0;
> }
>
> +int i915_gem_get_reset(struct drm_file *filp, struct drm_device *dev,
> + struct drm_get_reset *reset)
> +{
> + struct i915_gem_context *ctx;
> +
> + ctx = i915_gem_context_lookup(file->driver_priv, reset->ctx_id);
> + if (IS_ERR(ctx))
> + return PTR_ERR(ctx);
> +
> + reset->dev_reset_count = i915_reset_count(&i915->gpu_error) - ctx->dev_reset_count;
> + reset->ctx_reset_count = ctx->guilty_count;
> +
> + i915_gem_context_put(ctx);
Usually return is preceded by a blank line.
> + return 0;
> +}
> +
> /* GEM context-engines iterator: for_each_gem_engine() */
> struct intel_context *
> i915_gem_engines_iter_next(struct i915_gem_engines_iter *it)
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.h b/drivers/gpu/drm/i915/gem/i915_gem_context.h
> index e5b0f66ea1fe..9ee119d8123f 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h
> @@ -138,6 +138,8 @@ int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file);
> +int i915_gem_get_reset(struct drm_file *file_priv, struct drm_device *dev,
> + struct drm_get_reset *reset);
>
> struct i915_gem_context *
> i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id);
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
> index cb78214a7dcd..2e4cf0f0d3dc 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
> @@ -414,6 +414,8 @@ struct i915_gem_context {
> /** @engines: list of stale engines */
> struct list_head engines;
> } stale;
> +
> + uint64_t dev_reset_counter;
u64 please. i915 only uses the kernel fixed types.
Please do wait for review on the actual content before reposting.
BR,
Jani.
> };
>
> #endif /* __I915_GEM_CONTEXT_TYPES_H__ */
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 97244541ec28..640304141ada 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -1805,6 +1805,8 @@ static const struct drm_driver i915_drm_driver = {
> .postclose = i915_driver_postclose,
> .show_fdinfo = i915_drm_client_fdinfo,
>
> + .get_reset = i915_gem_get_reset,
> +
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = i915_gem_prime_import,
--
Jani Nikula, Intel Open Source Graphics Center
