drm/xe/throttle: Log throttle reasons

raagjadav · rodrigovivi · commit 4a69c4fbb8d5 · 2024-12-02T12:07:28.000-05:00
Log throttle register MMIO reads which will be useful for debugging. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Riana Tauro <riana.tauro@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241129074300.1304068-1-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle.c b/drivers/gpu/drm/xe/xe_gt_throttle.c
@@ -8,6 +8,7 @@
 #include <regs/xe_gt_regs.h>
 #include "xe_device.h"
 #include "xe_gt.h"
+#include "xe_gt_printk.h"
 #include "xe_gt_sysfs.h"
 #include "xe_gt_throttle.h"
 #include "xe_mmio.h"
@@ -53,6 +54,7 @@ static u32 read_status(struct xe_gt *gt)
 {
 	u32 status = xe_gt_throttle_get_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK;
 
+	xe_gt_dbg(gt, "throttle reasons: 0x%08x\n", status);
 	return status;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -8,6 +8,7 @@`
`8`	`8`	`#include <regs/xe_gt_regs.h>`
`9`	`9`	`#include "xe_device.h"`
`10`	`10`	`#include "xe_gt.h"`
	`11`	`+#include "xe_gt_printk.h"`
`11`	`12`	`#include "xe_gt_sysfs.h"`
`12`	`13`	`#include "xe_gt_throttle.h"`
`13`	`14`	`#include "xe_mmio.h"`
`@@ -53,6 +54,7 @@ static u32 read_status(struct xe_gt *gt)`
`53`	`54`	`{`
`54`	`55`	`u32 status = xe_gt_throttle_get_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK;`
`55`	`56`
	`57`	`+ xe_gt_dbg(gt, "throttle reasons: 0x%08x\n", status);`
`56`	`58`	`return status;`
`57`	`59`	`}`
`58`	`60`