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authorJani Nikula <jani.nikula@intel.com>2019-09-24 15:58:57 +0300
committerJani Nikula <jani.nikula@intel.com>2019-10-02 16:28:24 +0300
commit959b077f26a16c663816f116af8063a170233a07 (patch)
tree9c8408b1772ad3cd06b1c44828c0af44941544e4 /drivers/gpu/drm/drm_print.c
parente22b86e97317cff590e3b0775fc2c842c1bff098 (diff)
downloadlinux-959b077f26a16c663816f116af8063a170233a07.tar.xz
drm/print: move drm_debug variable to drm_print.[ch]
Move drm_debug variable declaration and definition to where they are relevant and needed. No functional changes. Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Eric Engestrom <eric@engestrom.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/71a566c68883b6e6c61414cd9f7c36c84015edb1.1569329774.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_print.c')
-rw-r--r--drivers/gpu/drm/drm_print.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index 52cc7b38eb12..1ade3a917c10 100644
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -28,6 +28,7 @@
#include <stdarg.h>
#include <linux/io.h>
+#include <linux/moduleparam.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
@@ -35,6 +36,24 @@
#include <drm/drm_drv.h>
#include <drm/drm_print.h>
+/*
+ * drm_debug: Enable debug output.
+ * Bitmask of DRM_UT_x. See include/drm/drm_print.h for details.
+ */
+unsigned int drm_debug;
+EXPORT_SYMBOL(drm_debug);
+
+MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug category.\n"
+"\t\tBit 0 (0x01) will enable CORE messages (drm core code)\n"
+"\t\tBit 1 (0x02) will enable DRIVER messages (drm controller code)\n"
+"\t\tBit 2 (0x04) will enable KMS messages (modesetting code)\n"
+"\t\tBit 3 (0x08) will enable PRIME messages (prime code)\n"
+"\t\tBit 4 (0x10) will enable ATOMIC messages (atomic code)\n"
+"\t\tBit 5 (0x20) will enable VBL messages (vblank code)\n"
+"\t\tBit 7 (0x80) will enable LEASE messages (leasing code)\n"
+"\t\tBit 8 (0x100) will enable DP messages (displayport code)");
+module_param_named(debug, drm_debug, int, 0600);
+
void __drm_puts_coredump(struct drm_printer *p, const char *str)
{
struct drm_print_iterator *iterator = p->arg;