IPS was the precursor to RPS on Ironlake. It serves the same function,
and so should be pulled under the intel_gt_pm umbrella.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 37 ++++++++---------
drivers/gpu/drm/i915/i915_irq.c | 21 +++++-----
drivers/gpu/drm/i915/intel_gt_pm.c | 83 +++++++++++++++++++++-----------------
drivers/gpu/drm/i915/intel_pm.c | 8 ++--
4 files changed, 80 insertions(+), 69 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cd92d0295b63..cfbcaa8556e0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -784,23 +784,10 @@ struct intel_rps {
struct intel_rps_ei ei;
};
-struct intel_rc6 {
- u64 prev_hw_residency[4];
- u64 cur_residency[4];
-};
-
-struct intel_gt_pm {
- struct intel_rc6 rc6;
- struct intel_rps rps;
-
- u32 imr;
- u32 ier;
-};
-
/* defined intel_pm.c */
extern spinlock_t mchdev_lock;
-struct intel_ilk_power_mgmt {
+struct intel_ips {
u8 cur_delay;
u8 min_delay;
u8 max_delay;
@@ -819,6 +806,24 @@ struct intel_ilk_power_mgmt {
int r_t;
};
+struct intel_rc6 {
+ u64 prev_hw_residency[4];
+ u64 cur_residency[4];
+};
+
+struct intel_gt_pm {
+ struct intel_rc6 rc6;
+ struct intel_rps rps;
+ /*
+ * ilk-only ips/rps state. Everything in here is protected by the
+ * global mchdev_lock in intel_gt_pm.c
+ */
+ struct intel_ips ips;
+
+ u32 imr;
+ u32 ier;
+};
+
struct drm_i915_private;
struct i915_power_well;
@@ -1780,10 +1785,6 @@ struct drm_i915_private {
struct intel_gt_pm gt_pm;
- /* ilk-only ips/rps state. Everything in here is protected by the global
- * mchdev_lock in intel_pm.c */
- struct intel_ilk_power_mgmt ips;
-
struct i915_power_domains power_domains;
struct i915_psr psr;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index dfb711ca4d27..9a52692395f2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -852,6 +852,7 @@ int intel_get_crtc_scanline(struct intel_crtc *crtc)
static void ironlake_rps_change_irq_handler(struct drm_i915_private *dev_priv)
{
+ struct intel_ips *ips = &dev_priv->gt_pm.ips;
u32 busy_up, busy_down, max_avg, min_avg;
u8 new_delay;
@@ -859,7 +860,7 @@ static void ironlake_rps_change_irq_handler(struct drm_i915_private *dev_priv)
I915_WRITE16(MEMINTRSTS, I915_READ(MEMINTRSTS));
- new_delay = dev_priv->ips.cur_delay;
+ new_delay = ips->cur_delay;
I915_WRITE16(MEMINTRSTS, MEMINT_EVAL_CHG);
busy_up = I915_READ(RCPREVBSYTUPAVG);
@@ -869,19 +870,19 @@ static void ironlake_rps_change_irq_handler(struct drm_i915_private *dev_priv)
/* Handle RCS change request from hw */
if (busy_up > max_avg) {
- if (dev_priv->ips.cur_delay != dev_priv->ips.max_delay)
- new_delay = dev_priv->ips.cur_delay - 1;
- if (new_delay < dev_priv->ips.max_delay)
- new_delay = dev_priv->ips.max_delay;
+ if (ips->cur_delay != ips->max_delay)
+ new_delay = ips->cur_delay - 1;
+ if (new_delay < ips->max_delay)
+ new_delay = ips->max_delay;
} else if (busy_down < min_avg) {
- if (dev_priv->ips.cur_delay != dev_priv->ips.min_delay)
- new_delay = dev_priv->ips.cur_delay + 1;
- if (new_delay > dev_priv->ips.min_delay)
- new_delay = dev_priv->ips.min_delay;
+ if (ips->cur_delay != ips->min_delay)
+ new_delay = ips->cur_delay + 1;
+ if (new_delay > ips->min_delay)
+ new_delay = ips->min_delay;
}
if (ironlake_set_drps(dev_priv, new_delay))
- dev_priv->ips.cur_delay = new_delay;
+ ips->cur_delay = new_delay;
spin_unlock(&mchdev_lock);
diff --git a/drivers/gpu/drm/i915/intel_gt_pm.c b/drivers/gpu/drm/i915/intel_gt_pm.c
index 18ab1b3a2945..def292cfd181 100644
--- a/drivers/gpu/drm/i915/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/intel_gt_pm.c
@@ -65,6 +65,7 @@ bool ironlake_set_drps(struct drm_i915_private *dev_priv, u8 val)
static void ironlake_enable_drps(struct drm_i915_private *dev_priv)
{
+ struct intel_ips *ips = &dev_priv->gt_pm.ips;
u32 rgvmodectl;
u8 fmax, fmin, fstart, vstart;
@@ -95,12 +96,12 @@ static void ironlake_enable_drps(struct drm_i915_private *dev_priv)
vstart = (I915_READ(PXVFREQ(fstart)) & PXVFREQ_PX_MASK) >>
PXVFREQ_PX_SHIFT;
- dev_priv->ips.fmax = fmax; /* IPS callback will increase this */
- dev_priv->ips.fstart = fstart;
+ ips->fmax = fmax; /* IPS callback will increase this */
+ ips->fstart = fstart;
- dev_priv->ips.max_delay = fstart;
- dev_priv->ips.min_delay = fmin;
- dev_priv->ips.cur_delay = fstart;
+ ips->max_delay = fstart;
+ ips->min_delay = fmin;
+ ips->cur_delay = fstart;
DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n",
fmax, fmin, fstart);
@@ -123,11 +124,11 @@ static void ironlake_enable_drps(struct drm_i915_private *dev_priv)
ironlake_set_drps(dev_priv, fstart);
- dev_priv->ips.last_count1 = I915_READ(DMIEC) +
- I915_READ(DDREC) + I915_READ(CSIEC);
- dev_priv->ips.last_time1 = jiffies_to_msecs(jiffies);
- dev_priv->ips.last_count2 = I915_READ(GFXEC);
- dev_priv->ips.last_time2 = ktime_get_raw_ns();
+ ips->last_count1 =
+ I915_READ(DMIEC) + I915_READ(DDREC) + I915_READ(CSIEC);
+ ips->last_time1 = jiffies_to_msecs(jiffies);
+ ips->last_count2 = I915_READ(GFXEC);
+ ips->last_time2 = ktime_get_raw_ns();
spin_unlock_irq(&mchdev_lock);
}
@@ -148,7 +149,7 @@ static void ironlake_disable_drps(struct drm_i915_private *dev_priv)
I915_WRITE(DEIMR, I915_READ(DEIMR) | DE_PCU_EVENT);
/* Go back to the starting frequency */
- ironlake_set_drps(dev_priv, dev_priv->ips.fstart);
+ ironlake_set_drps(dev_priv, dev_priv->gt_pm.ips.fstart);
mdelay(1);
rgvswctl |= MEMCTL_CMD_STS;
I915_WRITE(MEMSWCTL, rgvswctl);
@@ -1857,6 +1858,7 @@ static const struct cparams {
static unsigned long __i915_chipset_val(struct drm_i915_private *dev_priv)
{
+ struct intel_ips *ips = &dev_priv->gt_pm.ips;
u64 total_count, diff, ret;
u32 count1, count2, count3, m = 0, c = 0;
unsigned long now = jiffies_to_msecs(jiffies), diff1;
@@ -1864,7 +1866,7 @@ static unsigned long __i915_chipset_val(struct drm_i915_private *dev_priv)
lockdep_assert_held(&mchdev_lock);
- diff1 = now - dev_priv->ips.last_time1;
+ diff1 = now - ips->last_time1;
/*
* Prevent division-by-zero if we are asking too fast.
@@ -1873,7 +1875,7 @@ static unsigned long __i915_chipset_val(struct drm_i915_private *dev_priv)
* in such cases.
*/
if (diff1 <= 10)
- return dev_priv->ips.chipset_power;
+ return ips->chipset_power;
count1 = I915_READ(DMIEC);
count2 = I915_READ(DDREC);
@@ -1882,16 +1884,15 @@ static unsigned long __i915_chipset_val(struct drm_i915_private *dev_priv)
total_count = count1 + count2 + count3;
/* FIXME: handle per-counter overflow */
- if (total_count < dev_priv->ips.last_count1) {
- diff = ~0UL - dev_priv->ips.last_count1;
+ if (total_count < ips->last_count1) {
+ diff = ~0UL - ips->last_count1;
diff += total_count;
} else {
- diff = total_count - dev_priv->ips.last_count1;
+ diff = total_count - ips->last_count1;
}
for (i = 0; i < ARRAY_SIZE(cparams); i++) {
- if (cparams[i].i == dev_priv->ips.c_m &&
- cparams[i].t == dev_priv->ips.r_t) {
+ if (cparams[i].i == ips->c_m && cparams[i].t == ips->r_t) {
m = cparams[i].m;
c = cparams[i].c;
break;
@@ -1902,10 +1903,10 @@ static unsigned long __i915_chipset_val(struct drm_i915_private *dev_priv)
ret = ((m * diff) + c);
ret = div_u64(ret, 10);
- dev_priv->ips.last_count1 = total_count;
- dev_priv->ips.last_time1 = now;
+ ips->last_count1 = total_count;
+ ips->last_time1 = now;
- dev_priv->ips.chipset_power = ret;
+ ips->chipset_power = ret;
return ret;
}
@@ -1967,13 +1968,14 @@ static u32 pvid_to_extvid(struct drm_i915_private *dev_priv, u8 pxvid)
static void __i915_update_gfx_val(struct drm_i915_private *dev_priv)
{
+ struct intel_ips *ips = &dev_priv->gt_pm.ips;
u64 now, diff, diffms;
u32 count;
lockdep_assert_held(&mchdev_lock);
now = ktime_get_raw_ns();
- diffms = now - dev_priv->ips.last_time2;
+ diffms = now - ips->last_time2;
do_div(diffms, NSEC_PER_MSEC);
/* Don't divide by 0 */
@@ -1982,20 +1984,20 @@ static void __i915_update_gfx_val(struct drm_i915_private *dev_priv)
count = I915_READ(GFXEC);
- if (count < dev_priv->ips.last_count2) {
- diff = ~0UL - dev_priv->ips.last_count2;
+ if (count < ips->last_count2) {
+ diff = ~0UL - ips->last_count2;
diff += count;
} else {
- diff = count - dev_priv->ips.last_count2;
+ diff = count - ips->last_count2;
}
- dev_priv->ips.last_count2 = count;
- dev_priv->ips.last_time2 = now;
+ ips->last_count2 = count;
+ ips->last_time2 = now;
/* More magic constants... */
diff = diff * 1181;
diff = div_u64(diff, diffms * 10);
- dev_priv->ips.gfx_power = diff;
+ ips->gfx_power = diff;
}
void i915_update_gfx_val(struct drm_i915_private *dev_priv)
@@ -2014,6 +2016,7 @@ void i915_update_gfx_val(struct drm_i915_private *dev_priv)
static unsigned long __i915_gfx_val(struct drm_i915_private *dev_priv)
{
+ struct intel_ips *ips = &dev_priv->gt_pm.ips;
unsigned long t, corr, state1, corr2, state2;
u32 pxvid, ext_v;
@@ -2039,14 +2042,14 @@ static unsigned long __i915_gfx_val(struct drm_i915_private *dev_priv)
corr = corr * ((150142 * state1) / 10000 - 78642);
corr /= 100000;
- corr2 = (corr * dev_priv->ips.corr);
+ corr2 = (corr * ips->corr);
state2 = (corr2 * state1) / 10000;
state2 /= 100; /* convert to mW */
__i915_update_gfx_val(dev_priv);
- return dev_priv->ips.gfx_power + state2;
+ return ips->gfx_power + state2;
}
unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
@@ -2117,14 +2120,17 @@ EXPORT_SYMBOL_GPL(i915_read_mch_val);
bool i915_gpu_raise(void)
{
struct drm_i915_private *i915;
+ struct intel_ips *ips;
i915 = mchdev_get();
if (!i915)
return false;
+ ips = &i915->gt_pm.ips;
+
spin_lock_irq(&mchdev_lock);
- if (i915->ips.max_delay > i915->ips.fmax)
- i915->ips.max_delay--;
+ if (ips->max_delay > ips->fmax)
+ ips->max_delay--;
spin_unlock_irq(&mchdev_lock);
drm_dev_put(&i915->drm);
@@ -2141,14 +2147,17 @@ EXPORT_SYMBOL_GPL(i915_gpu_raise);
bool i915_gpu_lower(void)
{
struct drm_i915_private *i915;
+ struct intel_ips *ips;
i915 = mchdev_get();
if (!i915)
return false;
+ ips = &i915->gt_pm.ips;
+
spin_lock_irq(&mchdev_lock);
- if (i915->ips.max_delay < i915->ips.min_delay)
- i915->ips.max_delay++;
+ if (ips->max_delay < ips->min_delay)
+ ips->max_delay++;
spin_unlock_irq(&mchdev_lock);
drm_dev_put(&i915->drm);
@@ -2193,8 +2202,8 @@ bool i915_gpu_turbo_disable(void)
return false;
spin_lock_irq(&mchdev_lock);
- i915->ips.max_delay = i915->ips.fstart;
- ret = ironlake_set_drps(i915, i915->ips.fstart);
+ i915->gt_pm.ips.max_delay = i915->gt_pm.ips.fstart;
+ ret = ironlake_set_drps(i915, i915->gt_pm.ips.fstart);
spin_unlock_irq(&mchdev_lock);
drm_dev_put(&i915->drm);
@@ -2305,7 +2314,7 @@ static void intel_init_emon(struct drm_i915_private *dev_priv)
lcfuse = I915_READ(LCFUSE02);
- dev_priv->ips.corr = (lcfuse & LCFUSE_HIV_MASK);
+ dev_priv->gt_pm.ips.corr = (lcfuse & LCFUSE_HIV_MASK);
}
void intel_gt_pm_sanitize(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0bbee12bee41..1ad86ee668d8 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -186,7 +186,7 @@ static void i915_ironlake_get_mem_freq(struct drm_i915_private *dev_priv)
break;
}
- dev_priv->ips.r_t = dev_priv->mem_freq;
+ dev_priv->gt_pm.ips.r_t = dev_priv->mem_freq;
switch (csipll & 0x3ff) {
case 0x00c:
@@ -218,11 +218,11 @@ static void i915_ironlake_get_mem_freq(struct drm_i915_private *dev_priv)
}
if (dev_priv->fsb_freq == 3200) {
- dev_priv->ips.c_m = 0;
+ dev_priv->gt_pm.ips.c_m = 0;
} else if (dev_priv->fsb_freq > 3200 && dev_priv->fsb_freq <= 4800) {
- dev_priv->ips.c_m = 1;
+ dev_priv->gt_pm.ips.c_m = 1;
} else {
- dev_priv->ips.c_m = 2;
+ dev_priv->gt_pm.ips.c_m = 2;
}
}
--
2.16.2
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