drm/i915: turbo & RC6 support for VLV v7
Uses slightly different interfaces than other platforms.
v2: track actual set freq, not requested (Rohit)
fix debug prints in init code (Jesse)
v3: don't write sleep reg (Jesse)
re-add RC6 wake limit write (Ben)
fixup thresholds to match other platforms (Ben)
clean up mem freq calculation (Ben)
clean up debug prints (Ben)
v4: move defines from punit patch (Ville)
v5: remove writes to nonexistent regs (Jesse)
put RP and RC regs together (Jesse)
fix RC6 enable (Jesse)
v6: use correct fuse reads from NC (Jesse)
split out min/max funcs for use in sysfs (Jesse)
add debugfs & sysfs freq controls (Jesse)
v7: update with Ben's hw_max changes (Jesse)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net> (v6)
[danvet: Follow checkpatch sugggestion to use min_t to avoid casting
fun.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index d5e1890..ca00df2 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -212,7 +212,10 @@
int ret;
mutex_lock(&dev_priv->rps.hw_lock);
- ret = dev_priv->rps.cur_delay * GT_FREQUENCY_MULTIPLIER;
+ if (IS_VALLEYVIEW(dev_priv->dev))
+ ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.cur_delay);
+ else
+ ret = dev_priv->rps.cur_delay * GT_FREQUENCY_MULTIPLIER;
mutex_unlock(&dev_priv->rps.hw_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", ret);
@@ -226,7 +229,10 @@
int ret;
mutex_lock(&dev_priv->rps.hw_lock);
- ret = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
+ if (IS_VALLEYVIEW(dev_priv->dev))
+ ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.max_delay);
+ else
+ ret = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
mutex_unlock(&dev_priv->rps.hw_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", ret);
@@ -246,16 +252,25 @@
if (ret)
return ret;
- val /= GT_FREQUENCY_MULTIPLIER;
-
mutex_lock(&dev_priv->rps.hw_lock);
- rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
- hw_max = dev_priv->rps.hw_max;
- non_oc_max = (rp_state_cap & 0xff);
- hw_min = ((rp_state_cap & 0xff0000) >> 16);
+ if (IS_VALLEYVIEW(dev_priv->dev)) {
+ val = vlv_freq_opcode(dev_priv->mem_freq, val);
- if (val < hw_min || val > hw_max || val < dev_priv->rps.min_delay) {
+ hw_max = valleyview_rps_max_freq(dev_priv);
+ hw_min = valleyview_rps_min_freq(dev_priv);
+ non_oc_max = hw_max;
+ } else {
+ val /= GT_FREQUENCY_MULTIPLIER;
+
+ rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
+ hw_max = dev_priv->rps.hw_max;
+ non_oc_max = (rp_state_cap & 0xff);
+ hw_min = ((rp_state_cap & 0xff0000) >> 16);
+ }
+
+ if (val < hw_min || val > hw_max ||
+ val < dev_priv->rps.min_delay) {
mutex_unlock(&dev_priv->rps.hw_lock);
return -EINVAL;
}
@@ -264,8 +279,12 @@
DRM_DEBUG("User requested overclocking to %d\n",
val * GT_FREQUENCY_MULTIPLIER);
- if (dev_priv->rps.cur_delay > val)
- gen6_set_rps(dev_priv->dev, val);
+ if (dev_priv->rps.cur_delay > val) {
+ if (IS_VALLEYVIEW(dev_priv->dev))
+ valleyview_set_rps(dev_priv->dev, val);
+ else
+ gen6_set_rps(dev_priv->dev, val);
+ }
dev_priv->rps.max_delay = val;
@@ -282,7 +301,10 @@
int ret;
mutex_lock(&dev_priv->rps.hw_lock);
- ret = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
+ if (IS_VALLEYVIEW(dev_priv->dev))
+ ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.min_delay);
+ else
+ ret = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
mutex_unlock(&dev_priv->rps.hw_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", ret);
@@ -302,21 +324,32 @@
if (ret)
return ret;
- val /= GT_FREQUENCY_MULTIPLIER;
-
mutex_lock(&dev_priv->rps.hw_lock);
- rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
- hw_max = dev_priv->rps.hw_max;
- hw_min = ((rp_state_cap & 0xff0000) >> 16);
+ if (IS_VALLEYVIEW(dev)) {
+ val = vlv_freq_opcode(dev_priv->mem_freq, val);
+
+ hw_max = valleyview_rps_max_freq(dev_priv);
+ hw_min = valleyview_rps_min_freq(dev_priv);
+ } else {
+ val /= GT_FREQUENCY_MULTIPLIER;
+
+ rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
+ hw_max = dev_priv->rps.hw_max;
+ hw_min = ((rp_state_cap & 0xff0000) >> 16);
+ }
if (val < hw_min || val > hw_max || val > dev_priv->rps.max_delay) {
mutex_unlock(&dev_priv->rps.hw_lock);
return -EINVAL;
}
- if (dev_priv->rps.cur_delay < val)
- gen6_set_rps(dev_priv->dev, val);
+ if (dev_priv->rps.cur_delay < val) {
+ if (IS_VALLEYVIEW(dev))
+ valleyview_set_rps(dev, val);
+ else
+ gen6_set_rps(dev_priv->dev, val);
+ }
dev_priv->rps.min_delay = val;