3.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Widawsky <b...@bwidawsk.net>
commit f82855d342b6c8483c56e6d2e200a71731509a39 upstream.
The shift changed, hurray.
Reported-by: Kenneth Graunke <kenn...@whitecape.org>
Cc: Paulo Zanoni <przan...@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zan...@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zan...@intel.com>
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/gpu/drm/i915/i915_debugfs.c | 10 +++++++---
drivers/gpu/drm/i915/i915_reg.h | 2 ++
2 files changed, 9 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -888,7 +888,7 @@ static int i915_cur_delayinfo(struct seq
u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
- u32 rpstat;
+ u32 rpstat, cagf;
u32 rpupei, rpcurup, rpprevup;
u32 rpdownei, rpcurdown, rpprevdown;
int max_freq;
@@ -907,6 +907,11 @@ static int i915_cur_delayinfo(struct seq
rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
+ if (IS_HASWELL(dev))
+ cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
+ else
+ cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
+ cagf *= GT_FREQUENCY_MULTIPLIER;
gen6_gt_force_wake_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
@@ -919,8 +924,7 @@ static int i915_cur_delayinfo(struct seq
gt_perf_status & 0xff);
seq_printf(m, "Render p-state limit: %d\n",
rp_state_limits & 0xff);
- seq_printf(m, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >>
- GEN6_CAGF_SHIFT) *
GT_FREQUENCY_MULTIPLIER);
+ seq_printf(m, "CAGF: %dMHz\n", cagf);
seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
GEN6_CURICONT_MASK);
seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4211,7 +4211,9 @@
#define GEN6_RP_INTERRUPT_LIMITS 0xA014
#define GEN6_RPSTAT1 0xA01C
#define GEN6_CAGF_SHIFT 8
+#define HSW_CAGF_SHIFT 7
#define GEN6_CAGF_MASK (0x7f << GEN6_CAGF_SHIFT)
+#define HSW_CAGF_MASK (0x7f << HSW_CAGF_SHIFT)
#define GEN6_RP_CONTROL 0xA024
#define GEN6_RP_MEDIA_TURBO (1<<11)
#define GEN6_RP_MEDIA_MODE_MASK (3<<9)
--
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