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path: root/drivers/gpu/drm/i915/i915_params.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
-rw-r--r--drivers/gpu/drm/i915/i915_params.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 8dfea0320c2f..b5f3eb4fa8a3 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -22,6 +22,8 @@
* IN THE SOFTWARE.
*/
+#include <drm/drm_print.h>
+
#include "i915_params.h"
#include "i915_drv.h"
@@ -172,3 +174,34 @@ i915_param_named(enable_dpcd_backlight, bool, 0600,
i915_param_named(enable_gvt, bool, 0400,
"Enable support for Intel GVT-g graphics virtualization host support(default:false)");
+
+static __always_inline void _print_param(struct drm_printer *p,
+ const char *name,
+ const char *type,
+ const void *x)
+{
+ if (!__builtin_strcmp(type, "bool"))
+ drm_printf(p, "i915.%s=%s\n", name, yesno(*(const bool *)x));
+ else if (!__builtin_strcmp(type, "int"))
+ drm_printf(p, "i915.%s=%d\n", name, *(const int *)x);
+ else if (!__builtin_strcmp(type, "unsigned int"))
+ drm_printf(p, "i915.%s=%u\n", name, *(const unsigned int *)x);
+ else if (!__builtin_strcmp(type, "char *"))
+ drm_printf(p, "i915.%s=%s\n", name, *(const char **)x);
+ else
+ BUILD_BUG();
+}
+
+/**
+ * i915_params_dump - dump i915 modparams
+ * @params: i915 modparams
+ * @p: the &drm_printer
+ *
+ * Pretty printer for i915 modparams.
+ */
+void i915_params_dump(const struct i915_params *params, struct drm_printer *p)
+{
+#define PRINT(T, x, ...) _print_param(p, #x, #T, &params->x);
+ I915_PARAMS_FOR_EACH(PRINT);
+#undef PRINT
+}