master->driver_priv = NULL;
}
-static void i915_get_mem_freq(struct drm_device *dev)
+static void i915_pineview_get_mem_freq(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
u32 tmp;
- if (!IS_PINEVIEW(dev))
- return;
-
tmp = I915_READ(CLKCFG);
switch (tmp & CLKCFG_FSB_MASK) {
}
}
+static void i915_ironlake_get_mem_freq(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ u16 ddrpll, csipll;
+
+ ddrpll = I915_READ16(DDRMPLL1);
+ csipll = I915_READ16(CSIPLL0);
+
+ switch (ddrpll & 0xff) {
+ case 0xc:
+ dev_priv->mem_freq = 800;
+ break;
+ case 0x10:
+ dev_priv->mem_freq = 1066;
+ break;
+ case 0x14:
+ dev_priv->mem_freq = 1333;
+ break;
+ case 0x18:
+ dev_priv->mem_freq = 1600;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("unknown memory frequency 0x%02x\n",
+ ddrpll & 0xff);
+ dev_priv->mem_freq = 0;
+ break;
+ }
+
+ dev_priv->r_t = dev_priv->mem_freq;
+
+ switch (csipll & 0x3ff) {
+ case 0x00c:
+ dev_priv->fsb_freq = 3200;
+ break;
+ case 0x00e:
+ dev_priv->fsb_freq = 3733;
+ break;
+ case 0x010:
+ dev_priv->fsb_freq = 4266;
+ break;
+ case 0x012:
+ dev_priv->fsb_freq = 4800;
+ break;
+ case 0x014:
+ dev_priv->fsb_freq = 5333;
+ break;
+ case 0x016:
+ dev_priv->fsb_freq = 5866;
+ break;
+ case 0x018:
+ dev_priv->fsb_freq = 6400;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("unknown fsb frequency 0x%04x\n",
+ csipll & 0x3ff);
+ dev_priv->fsb_freq = 0;
+ break;
+ }
+
+ if (dev_priv->fsb_freq == 3200) {
+ dev_priv->c_m = 0;
+ } else if (dev_priv->fsb_freq > 3200 && dev_priv->fsb_freq <= 4800) {
+ dev_priv->c_m = 1;
+ } else {
+ dev_priv->c_m = 2;
+ }
+}
+
+struct v_table {
+ u8 vid;
+ unsigned long vd; /* in .1 mil */
+ unsigned long vm; /* in .1 mil */
+ u8 pvid;
+};
+
+static struct v_table v_table[] = {
+ { 0, 16125, 15000, 0x7f, },
+ { 1, 16000, 14875, 0x7e, },
+ { 2, 15875, 14750, 0x7d, },
+ { 3, 15750, 14625, 0x7c, },
+ { 4, 15625, 14500, 0x7b, },
+ { 5, 15500, 14375, 0x7a, },
+ { 6, 15375, 14250, 0x79, },
+ { 7, 15250, 14125, 0x78, },
+ { 8, 15125, 14000, 0x77, },
+ { 9, 15000, 13875, 0x76, },
+ { 10, 14875, 13750, 0x75, },
+ { 11, 14750, 13625, 0x74, },
+ { 12, 14625, 13500, 0x73, },
+ { 13, 14500, 13375, 0x72, },
+ { 14, 14375, 13250, 0x71, },
+ { 15, 14250, 13125, 0x70, },
+ { 16, 14125, 13000, 0x6f, },
+ { 17, 14000, 12875, 0x6e, },
+ { 18, 13875, 12750, 0x6d, },
+ { 19, 13750, 12625, 0x6c, },
+ { 20, 13625, 12500, 0x6b, },
+ { 21, 13500, 12375, 0x6a, },
+ { 22, 13375, 12250, 0x69, },
+ { 23, 13250, 12125, 0x68, },
+ { 24, 13125, 12000, 0x67, },
+ { 25, 13000, 11875, 0x66, },
+ { 26, 12875, 11750, 0x65, },
+ { 27, 12750, 11625, 0x64, },
+ { 28, 12625, 11500, 0x63, },
+ { 29, 12500, 11375, 0x62, },
+ { 30, 12375, 11250, 0x61, },
+ { 31, 12250, 11125, 0x60, },
+ { 32, 12125, 11000, 0x5f, },
+ { 33, 12000, 10875, 0x5e, },
+ { 34, 11875, 10750, 0x5d, },
+ { 35, 11750, 10625, 0x5c, },
+ { 36, 11625, 10500, 0x5b, },
+ { 37, 11500, 10375, 0x5a, },
+ { 38, 11375, 10250, 0x59, },
+ { 39, 11250, 10125, 0x58, },
+ { 40, 11125, 10000, 0x57, },
+ { 41, 11000, 9875, 0x56, },
+ { 42, 10875, 9750, 0x55, },
+ { 43, 10750, 9625, 0x54, },
+ { 44, 10625, 9500, 0x53, },
+ { 45, 10500, 9375, 0x52, },
+ { 46, 10375, 9250, 0x51, },
+ { 47, 10250, 9125, 0x50, },
+ { 48, 10125, 9000, 0x4f, },
+ { 49, 10000, 8875, 0x4e, },
+ { 50, 9875, 8750, 0x4d, },
+ { 51, 9750, 8625, 0x4c, },
+ { 52, 9625, 8500, 0x4b, },
+ { 53, 9500, 8375, 0x4a, },
+ { 54, 9375, 8250, 0x49, },
+ { 55, 9250, 8125, 0x48, },
+ { 56, 9125, 8000, 0x47, },
+ { 57, 9000, 7875, 0x46, },
+ { 58, 8875, 7750, 0x45, },
+ { 59, 8750, 7625, 0x44, },
+ { 60, 8625, 7500, 0x43, },
+ { 61, 8500, 7375, 0x42, },
+ { 62, 8375, 7250, 0x41, },
+ { 63, 8250, 7125, 0x40, },
+ { 64, 8125, 7000, 0x3f, },
+ { 65, 8000, 6875, 0x3e, },
+ { 66, 7875, 6750, 0x3d, },
+ { 67, 7750, 6625, 0x3c, },
+ { 68, 7625, 6500, 0x3b, },
+ { 69, 7500, 6375, 0x3a, },
+ { 70, 7375, 6250, 0x39, },
+ { 71, 7250, 6125, 0x38, },
+ { 72, 7125, 6000, 0x37, },
+ { 73, 7000, 5875, 0x36, },
+ { 74, 6875, 5750, 0x35, },
+ { 75, 6750, 5625, 0x34, },
+ { 76, 6625, 5500, 0x33, },
+ { 77, 6500, 5375, 0x32, },
+ { 78, 6375, 5250, 0x31, },
+ { 79, 6250, 5125, 0x30, },
+ { 80, 6125, 5000, 0x2f, },
+ { 81, 6000, 4875, 0x2e, },
+ { 82, 5875, 4750, 0x2d, },
+ { 83, 5750, 4625, 0x2c, },
+ { 84, 5625, 4500, 0x2b, },
+ { 85, 5500, 4375, 0x2a, },
+ { 86, 5375, 4250, 0x29, },
+ { 87, 5250, 4125, 0x28, },
+ { 88, 5125, 4000, 0x27, },
+ { 89, 5000, 3875, 0x26, },
+ { 90, 4875, 3750, 0x25, },
+ { 91, 4750, 3625, 0x24, },
+ { 92, 4625, 3500, 0x23, },
+ { 93, 4500, 3375, 0x22, },
+ { 94, 4375, 3250, 0x21, },
+ { 95, 4250, 3125, 0x20, },
+ { 96, 4125, 3000, 0x1f, },
+ { 97, 4125, 3000, 0x1e, },
+ { 98, 4125, 3000, 0x1d, },
+ { 99, 4125, 3000, 0x1c, },
+ { 100, 4125, 3000, 0x1b, },
+ { 101, 4125, 3000, 0x1a, },
+ { 102, 4125, 3000, 0x19, },
+ { 103, 4125, 3000, 0x18, },
+ { 104, 4125, 3000, 0x17, },
+ { 105, 4125, 3000, 0x16, },
+ { 106, 4125, 3000, 0x15, },
+ { 107, 4125, 3000, 0x14, },
+ { 108, 4125, 3000, 0x13, },
+ { 109, 4125, 3000, 0x12, },
+ { 110, 4125, 3000, 0x11, },
+ { 111, 4125, 3000, 0x10, },
+ { 112, 4125, 3000, 0x0f, },
+ { 113, 4125, 3000, 0x0e, },
+ { 114, 4125, 3000, 0x0d, },
+ { 115, 4125, 3000, 0x0c, },
+ { 116, 4125, 3000, 0x0b, },
+ { 117, 4125, 3000, 0x0a, },
+ { 118, 4125, 3000, 0x09, },
+ { 119, 4125, 3000, 0x08, },
+ { 120, 1125, 0, 0x07, },
+ { 121, 1000, 0, 0x06, },
+ { 122, 875, 0, 0x05, },
+ { 123, 750, 0, 0x04, },
+ { 124, 625, 0, 0x03, },
+ { 125, 500, 0, 0x02, },
+ { 126, 375, 0, 0x01, },
+ { 127, 0, 0, 0x00, },
+};
+
+struct cparams {
+ int i;
+ int t;
+ int m;
+ int c;
+};
+
+static struct cparams cparams[] = {
+ { 1, 1333, 301, 28664 },
+ { 1, 1066, 294, 24460 },
+ { 1, 800, 294, 25192 },
+ { 0, 1333, 276, 27605 },
+ { 0, 1066, 276, 27605 },
+ { 0, 800, 231, 23784 },
+};
+
+unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
+{
+ u64 total_count, diff, ret;
+ u32 count1, count2, count3, m = 0, c = 0;
+ unsigned long now = jiffies_to_msecs(jiffies), diff1;
+ int i;
+
+ diff1 = now - dev_priv->last_time1;
+
+ count1 = I915_READ(DMIEC);
+ count2 = I915_READ(DDREC);
+ count3 = I915_READ(CSIEC);
+
+ total_count = count1 + count2 + count3;
+
+ /* FIXME: handle per-counter overflow */
+ if (total_count < dev_priv->last_count1) {
+ diff = ~0UL - dev_priv->last_count1;
+ diff += total_count;
+ } else {
+ diff = total_count - dev_priv->last_count1;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cparams); i++) {
+ if (cparams[i].i == dev_priv->c_m &&
+ cparams[i].t == dev_priv->r_t) {
+ m = cparams[i].m;
+ c = cparams[i].c;
+ break;
+ }
+ }
+
+ div_u64(diff, diff1);
+ ret = ((m * diff) + c);
+ div_u64(ret, 10);
+
+ dev_priv->last_count1 = total_count;
+ dev_priv->last_time1 = now;
+
+ return ret;
+}
+
+unsigned long i915_mch_val(struct drm_i915_private *dev_priv)
+{
+ unsigned long m, x, b;
+ u32 tsfs;
+
+ tsfs = I915_READ(TSFS);
+
+ m = ((tsfs & TSFS_SLOPE_MASK) >> TSFS_SLOPE_SHIFT);
+ x = I915_READ8(TR1);
+
+ b = tsfs & TSFS_INTR_MASK;
+
+ return ((m * x) / 127) - b;
+}
+
+static unsigned long pvid_to_extvid(struct drm_i915_private *dev_priv, u8 pxvid)
+{
+ unsigned long val = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(v_table); i++) {
+ if (v_table[i].pvid == pxvid) {
+ if (IS_MOBILE(dev_priv->dev))
+ val = v_table[i].vm;
+ else
+ val = v_table[i].vd;
+ }
+ }
+
+ return val;
+}
+
+void i915_update_gfx_val(struct drm_i915_private *dev_priv)
+{
+ struct timespec now, diff1;
+ u64 diff;
+ unsigned long diffms;
+ u32 count;
+
+ getrawmonotonic(&now);
+ diff1 = timespec_sub(now, dev_priv->last_time2);
+
+ /* Don't divide by 0 */
+ diffms = diff1.tv_sec * 1000 + diff1.tv_nsec / 1000000;
+ if (!diffms)
+ return;
+
+ count = I915_READ(GFXEC);
+
+ if (count < dev_priv->last_count2) {
+ diff = ~0UL - dev_priv->last_count2;
+ diff += count;
+ } else {
+ diff = count - dev_priv->last_count2;
+ }
+
+ dev_priv->last_count2 = count;
+ dev_priv->last_time2 = now;
+
+ /* More magic constants... */
+ diff = diff * 1181;
+ div_u64(diff, diffms * 10);
+ dev_priv->gfx_power = diff;
+}
+
+unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
+{
+ unsigned long t, corr, state1, corr2, state2;
+ u32 pxvid, ext_v;
+
+ pxvid = I915_READ(PXVFREQ_BASE + (dev_priv->cur_delay * 4));
+ pxvid = (pxvid >> 24) & 0x7f;
+ ext_v = pvid_to_extvid(dev_priv, pxvid);
+
+ state1 = ext_v;
+
+ t = i915_mch_val(dev_priv);
+
+ /* Revel in the empirically derived constants */
+
+ /* Correction factor in 1/100000 units */
+ if (t > 80)
+ corr = ((t * 2349) + 135940);
+ else if (t >= 50)
+ corr = ((t * 964) + 29317);
+ else /* < 50 */
+ corr = ((t * 301) + 1004);
+
+ corr = corr * ((150142 * state1) / 10000 - 78642);
+ corr /= 100000;
+ corr2 = (corr * dev_priv->corr);
+
+ state2 = (corr2 * state1) / 10000;
+ state2 /= 100; /* convert to mW */
+
+ i915_update_gfx_val(dev_priv);
+
+ return dev_priv->gfx_power + state2;
+}
+
+/* Global for IPS driver to get at the current i915 device */
+static struct drm_i915_private *i915_mch_dev;
+/*
+ * Lock protecting IPS related data structures
+ * - i915_mch_dev
+ * - dev_priv->max_delay
+ * - dev_priv->min_delay
+ * - dev_priv->fmax
+ * - dev_priv->gpu_busy
+ */
+DEFINE_SPINLOCK(mchdev_lock);
+
+/**
+ * i915_read_mch_val - return value for IPS use
+ *
+ * Calculate and return a value for the IPS driver to use when deciding whether
+ * we have thermal and power headroom to increase CPU or GPU power budget.
+ */
+unsigned long i915_read_mch_val(void)
+{
+ struct drm_i915_private *dev_priv;
+ unsigned long chipset_val, graphics_val, ret = 0;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev)
+ goto out_unlock;
+ dev_priv = i915_mch_dev;
+
+ chipset_val = i915_chipset_val(dev_priv);
+ graphics_val = i915_gfx_val(dev_priv);
+
+ ret = chipset_val + graphics_val;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_read_mch_val);
+
+/**
+ * i915_gpu_raise - raise GPU frequency limit
+ *
+ * Raise the limit; IPS indicates we have thermal headroom.
+ */
+bool i915_gpu_raise(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ if (dev_priv->max_delay > dev_priv->fmax)
+ dev_priv->max_delay--;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_raise);
+
+/**
+ * i915_gpu_lower - lower GPU frequency limit
+ *
+ * IPS indicates we're close to a thermal limit, so throttle back the GPU
+ * frequency maximum.
+ */
+bool i915_gpu_lower(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ if (dev_priv->max_delay < dev_priv->min_delay)
+ dev_priv->max_delay++;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_lower);
+
+/**
+ * i915_gpu_busy - indicate GPU business to IPS
+ *
+ * Tell the IPS driver whether or not the GPU is busy.
+ */
+bool i915_gpu_busy(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = false;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev)
+ goto out_unlock;
+ dev_priv = i915_mch_dev;
+
+ ret = dev_priv->busy;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_busy);
+
+/**
+ * i915_gpu_turbo_disable - disable graphics turbo
+ *
+ * Disable graphics turbo by resetting the max frequency and setting the
+ * current frequency to the default.
+ */
+bool i915_gpu_turbo_disable(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ dev_priv->max_delay = dev_priv->fstart;
+
+ if (!ironlake_set_drps(dev_priv->dev, dev_priv->fstart))
+ ret = false;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_turbo_disable);
+
/**
* i915_driver_load - setup chip and create an initial config
* @dev: DRM device
goto out_workqueue_free;
}
- i915_get_mem_freq(dev);
+ if (IS_PINEVIEW(dev))
+ i915_pineview_get_mem_freq(dev);
+ else if (IS_IRONLAKE(dev))
+ i915_ironlake_get_mem_freq(dev);
/* On the 945G/GM, the chipset reports the MSI capability on the
* integrated graphics even though the support isn't actually there
setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
(unsigned long) dev);
+
+ spin_lock(&mchdev_lock);
+ i915_mch_dev = dev_priv;
+ dev_priv->mchdev_lock = &mchdev_lock;
+ spin_unlock(&mchdev_lock);
+
return 0;
out_workqueue_free:
i915_destroy_error_state(dev);
+ spin_lock(&mchdev_lock);
+ i915_mch_dev = NULL;
+ spin_unlock(&mchdev_lock);
+
destroy_workqueue(dev_priv->wq);
del_timer_sync(&dev_priv->hangcheck_timer);
mutex_lock(&dev->struct_mutex);
+ i915_update_gfx_val(dev_priv);
+
if (IS_I945G(dev) || IS_I945GM(dev)) {
DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
return NULL;
}
+bool ironlake_set_drps(struct drm_device *dev, u8 val)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u16 rgvswctl;
+
+ rgvswctl = I915_READ16(MEMSWCTL);
+ if (rgvswctl & MEMCTL_CMD_STS) {
+ DRM_DEBUG("gpu busy, RCS change rejected\n");
+ return false; /* still busy with another command */
+ }
+
+ rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) |
+ (val << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM;
+ I915_WRITE16(MEMSWCTL, rgvswctl);
+ POSTING_READ16(MEMSWCTL);
+
+ rgvswctl |= MEMCTL_CMD_STS;
+ I915_WRITE16(MEMSWCTL, rgvswctl);
+
+ return true;
+}
+
void ironlake_enable_drps(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 rgvmodectl = I915_READ(MEMMODECTL), rgvswctl;
+ u32 rgvmodectl = I915_READ(MEMMODECTL);
u8 fmax, fmin, fstart, vstart;
int i = 0;
fmin = (rgvmodectl & MEMMODE_FMIN_MASK);
fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >>
MEMMODE_FSTART_SHIFT;
+ fstart = fmax;
+
vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >>
PXVFREQ_PX_SHIFT;
- dev_priv->max_delay = fstart; /* can't go to fmax w/o IPS */
+ dev_priv->fmax = fstart; /* IPS callback will increase this */
+ dev_priv->fstart = fstart;
+
+ dev_priv->max_delay = fmax;
dev_priv->min_delay = fmin;
dev_priv->cur_delay = fstart;
+ DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", fmax, fmin,
+ fstart);
+
I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN);
/*
}
msleep(1);
- rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) |
- (fstart << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM;
- I915_WRITE(MEMSWCTL, rgvswctl);
- POSTING_READ(MEMSWCTL);
+ ironlake_set_drps(dev, fstart);
- rgvswctl |= MEMCTL_CMD_STS;
- I915_WRITE(MEMSWCTL, rgvswctl);
+ dev_priv->last_count1 = I915_READ(0x112e4) + I915_READ(0x112e8) +
+ I915_READ(0x112e0);
+ dev_priv->last_time1 = jiffies_to_msecs(jiffies);
+ dev_priv->last_count2 = I915_READ(0x112f4);
+ getrawmonotonic(&dev_priv->last_time2);
}
void ironlake_disable_drps(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 rgvswctl;
- u8 fstart;
+ u16 rgvswctl = I915_READ16(MEMSWCTL);
/* Ack interrupts, disable EFC interrupt */
I915_WRITE(MEMINTREN, I915_READ(MEMINTREN) & ~MEMINT_EVAL_CHG_EN);
I915_WRITE(DEIMR, I915_READ(DEIMR) | DE_PCU_EVENT);
/* Go back to the starting frequency */
- fstart = (I915_READ(MEMMODECTL) & MEMMODE_FSTART_MASK) >>
- MEMMODE_FSTART_SHIFT;
- rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) |
- (fstart << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM;
- I915_WRITE(MEMSWCTL, rgvswctl);
+ ironlake_set_drps(dev, dev_priv->fstart);
msleep(1);
rgvswctl |= MEMCTL_CMD_STS;
I915_WRITE(MEMSWCTL, rgvswctl);
}
+static unsigned long intel_pxfreq(u32 vidfreq)
+{
+ unsigned long freq;
+ int div = (vidfreq & 0x3f0000) >> 16;
+ int post = (vidfreq & 0x3000) >> 12;
+ int pre = (vidfreq & 0x7);
+
+ if (!pre)
+ return 0;
+
+ freq = ((div * 133333) / ((1<<post) * pre));
+
+ return freq;
+}
+
+void intel_init_emon(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 lcfuse;
+ u8 pxw[16];
+ int i;
+
+ /* Disable to program */
+ I915_WRITE(ECR, 0);
+ POSTING_READ(ECR);
+
+ /* Program energy weights for various events */
+ I915_WRITE(SDEW, 0x15040d00);
+ I915_WRITE(CSIEW0, 0x007f0000);
+ I915_WRITE(CSIEW1, 0x1e220004);
+ I915_WRITE(CSIEW2, 0x04000004);
+
+ for (i = 0; i < 5; i++)
+ I915_WRITE(PEW + (i * 4), 0);
+ for (i = 0; i < 3; i++)
+ I915_WRITE(DEW + (i * 4), 0);
+
+ /* Program P-state weights to account for frequency power adjustment */
+ for (i = 0; i < 16; i++) {
+ u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4));
+ unsigned long freq = intel_pxfreq(pxvidfreq);
+ unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >>
+ PXVFREQ_PX_SHIFT;
+ unsigned long val;
+
+ val = vid * vid;
+ val *= (freq / 1000);
+ val *= 255;
+ val /= (127*127*900);
+ if (val > 0xff)
+ DRM_ERROR("bad pxval: %ld\n", val);
+ pxw[i] = val;
+ }
+ /* Render standby states get 0 weight */
+ pxw[14] = 0;
+ pxw[15] = 0;
+
+ for (i = 0; i < 4; i++) {
+ u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) |
+ (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]);
+ I915_WRITE(PXW + (i * 4), val);
+ }
+
+ /* Adjust magic regs to magic values (more experimental results) */
+ I915_WRITE(OGW0, 0);
+ I915_WRITE(OGW1, 0);
+ I915_WRITE(EG0, 0x00007f00);
+ I915_WRITE(EG1, 0x0000000e);
+ I915_WRITE(EG2, 0x000e0000);
+ I915_WRITE(EG3, 0x68000300);
+ I915_WRITE(EG4, 0x42000000);
+ I915_WRITE(EG5, 0x00140031);
+ I915_WRITE(EG6, 0);
+ I915_WRITE(EG7, 0);
+
+ for (i = 0; i < 8; i++)
+ I915_WRITE(PXWL + (i * 4), 0);
+
+ /* Enable PMON + select events */
+ I915_WRITE(ECR, 0x80000019);
+
+ lcfuse = I915_READ(LCFUSE02);
+
+ dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK);
+}
+
void intel_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
intel_init_clock_gating(dev);
- if (IS_IRONLAKE_M(dev))
+ if (IS_IRONLAKE_M(dev)) {
ironlake_enable_drps(dev);
+ intel_init_emon(dev);
+ }
INIT_WORK(&dev_priv->idle_work, intel_idle_update);
setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer,
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff