drm/i915: Show the current i915_params in debugfs/i915_capabilites (418e3cd8) · Commits · 戴 / test

drivers/gpu/drm/i915/i915_debugfs.c

+22 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,21 @@ drm_add_fake_info_node(struct drm_minor *minor,
		return 0;
		}

		static __always_inline void seq_print_param(struct seq_file *m,
		const char *name,
		const char *type,
		const void *x)
		{
		if (!__builtin_strcmp(type, "bool"))
		seq_printf(m, "i915.%s=%s\n", name, yesno((const bool )x));
		else if (!__builtin_strcmp(type, "int"))
		seq_printf(m, "i915.%s=%d\n", name, (const int )x);
		else if (!__builtin_strcmp(type, "unsigned int"))
		seq_printf(m, "i915.%s=%u\n", name, (const unsigned int )x);
		else
		BUILD_BUG();
		}

		static int i915_capabilities(struct seq_file m, void data)
		{
		struct drm_i915_private *dev_priv = node_to_i915(m->private);
		@@ -69,10 +84,17 @@ static int i915_capabilities(struct seq_file m, void data)
		seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv));
		seq_printf(m, "platform: %s\n", intel_platform_name(info->platform));
		seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));

		#define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
		DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
		#undef PRINT_FLAG

		kernel_param_lock(THIS_MODULE);
		#define PRINT_PARAM(T, x) seq_print_param(m, #x, #T, &i915.x);
		I915_PARAMS_FOR_EACH(PRINT_PARAM);
		#undef PRINT_PARAM
		kernel_param_unlock(THIS_MODULE);

		return 0;
		}