I was interested in finding why my IVB system is not getting GPU turbo
after suspend/resume. The piece that looks weird to me is that
INTERRUPT_THRESHOLD is sitting at 0, whereas pre-suspend it's
0x12000000.
---
lib/intel_reg.h | 31 +++++++++++++++++++++++++++++++
tools/intel_reg_dumper.c | 20 ++++++++++++++++++++
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/lib/intel_reg.h b/lib/intel_reg.h
index c7cd857..427efee 100644
--- a/lib/intel_reg.h
+++ b/lib/intel_reg.h
@@ -3511,4 +3511,35 @@ typedef enum {
#define RC6p_RESIDENCY_TIME 0x13810C
#define RC6pp_RESIDENCY_TIME 0x138110
+#define GEN6_RPNSWREQ 0xA008
+#define GEN6_RC_VIDEO_FREQ 0xA00C
+#define GEN6_RC_CONTROL 0xA090
+#define GEN6_RP_DOWN_TIMEOUT 0xA010
+#define GEN6_RP_INTERRUPT_LIMITS 0xA014
+#define GEN6_RPSTAT1 0xA01C
+#define GEN6_RP_CONTROL 0xA024
+#define GEN6_RP_UP_THRESHOLD 0xA02C
+#define GEN6_RP_DOWN_THRESHOLD 0xA030
+#define GEN6_RP_CUR_UP_EI 0xA050
+#define GEN6_RP_CUR_UP 0xA054
+#define GEN6_RP_PREV_UP 0xA058
+#define GEN6_RP_CUR_DOWN_EI 0xA05C
+#define GEN6_RP_CUR_DOWN 0xA060
+#define GEN6_RP_PREV_DOWN 0xA064
+#define GEN6_RP_UP_EI 0xA068
+#define GEN6_RP_DOWN_EI 0xA06C
+#define GEN6_RP_IDLE_HYSTERSIS 0xA070
+#define GEN6_RC_STATE 0xA094
+#define GEN6_RC1_WAKE_RATE_LIMIT 0xA098
+#define GEN6_RC6_WAKE_RATE_LIMIT 0xA09C
+#define GEN6_RC6pp_WAKE_RATE_LIMIT 0xA0A0
+#define GEN6_RC_EVALUATION_INTERVAL 0xA0A8
+#define GEN6_RC_IDLE_HYSTERSIS 0xA0AC
+#define GEN6_RC_SLEEP 0xA0B0
+#define GEN6_RC1e_THRESHOLD 0xA0B4
+#define GEN6_RC6_THRESHOLD 0xA0B8
+#define GEN6_RC6p_THRESHOLD 0xA0BC
+#define GEN6_RC6pp_THRESHOLD 0xA0C0
+#define GEN6_PMINTRMSK 0xA168
+
#endif /* _I810_REG_H */
diff --git a/tools/intel_reg_dumper.c b/tools/intel_reg_dumper.c
index c5249cb..9f281eb 100644
--- a/tools/intel_reg_dumper.c
+++ b/tools/intel_reg_dumper.c
@@ -1826,6 +1826,23 @@ _intel_dump_regs(struct reg_debug *regs, int count)
}
}
+DEBUGSTRING(gen6_rp_control)
+{
+ snprintf(result, len, "%s",
+ (val & (1 << 7)) ? "enabled" : "disabled");
+}
+
+static struct reg_debug gen6_rp_debug_regs[] = {
+ DEFINEREG2(GEN6_RP_CONTROL, gen6_rp_control),
+ DEFINEREG(GEN6_RPNSWREQ),
+ DEFINEREG(GEN6_RP_DOWN_TIMEOUT),
+ DEFINEREG(GEN6_RP_INTERRUPT_LIMITS),
+ DEFINEREG(GEN6_RP_UP_THRESHOLD),
+ DEFINEREG(GEN6_RP_UP_EI),
+ DEFINEREG(GEN6_RP_DOWN_EI),
+ DEFINEREG(GEN6_RP_IDLE_HYSTERSIS),
+};
+
static void
intel_dump_other_regs(void)
{
@@ -2097,5 +2114,8 @@ int main(int argc, char** argv)
intel_dump_other_regs();
}
+ if (IS_GEN6(devid) || IS_GEN7(devid))
+ intel_dump_regs(gen6_rp_debug_regs);
+
return 0;
}
--
1.7.9
