The hwcursor parameter is a boolean variable. When set to true, the
hardware cursor is enabled. When set to false, it is disabled.
Signed-off-by: Julia Lemire <jlemire at matrox.com>
---
drivers/gpu/drm/mgag200/mgag200_cursor.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c
b/drivers/gpu/drm/mgag200/mgag200_cursor.c
index 9f9780b..c9a94a6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_cursor.c
+++ b/drivers/gpu/drm/mgag200/mgag200_cursor.c
@@ -10,9 +10,17 @@
#include <drm/drmP.h>
#include "mgag200_drv.h"
+#include <linux/moduleparam.h>
+
+static bool hwcursor = true;
static bool warn_transparent = true;
static bool warn_palette = true;
+static bool warn_user_input = true;
+
+module_param(hwcursor, bool, 0644);
+MODULE_PARM_DESC(hwcursor, "When true, the hardware cursor is enabled. When
false, it is disabled.");
+
/*
Hide the cursor off screen. We can't disable the cursor hardware because it
@@ -90,6 +98,16 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
goto out1;
}
+ if (!hwcursor) {
+ if (warn_user_input) {
+ dev_info(&dev->pdev->dev, "User disabled hardware
cursor.\n");
+ warn_user_input = false;
+ }
+ mga_hide_cursor(mdev);
+ ret = -EINVAL;
+ goto out1;
+ }
+
/* Move cursor buffers into VRAM if they aren't already */
if (!pixels_1->pin_count) {
ret = mgag200_bo_pin(pixels_1, TTM_PL_FLAG_VRAM,
--
1.7.10.4
