[Intel-gfx] [PATCH 2/2] drm/i915: turbo & RC6 support for VLV v6
Jesse Barnes
jbarnes at virtuousgeek.org
Fri Apr 12 19:50:45 CEST 2013
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)
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
drivers/gpu/drm/i915/i915_debugfs.c | 58 ++++++++--
drivers/gpu/drm/i915/i915_drv.h | 5 +
drivers/gpu/drm/i915/i915_irq.c | 5 +-
drivers/gpu/drm/i915/i915_reg.h | 21 ++++
drivers/gpu/drm/i915/i915_sysfs.c | 68 ++++++++----
drivers/gpu/drm/i915/intel_pm.c | 198 +++++++++++++++++++++++++++++++++--
6 files changed, 317 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index be88532..ee2791f 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -941,7 +941,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
MEMSTAT_VID_SHIFT);
seq_printf(m, "Current P-state: %d\n",
(rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
- } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
+ } else if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) {
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);
@@ -1006,6 +1006,25 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
max_freq = rp_state_cap & 0xff;
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
max_freq * GT_FREQUENCY_MULTIPLIER);
+ } else if (IS_VALLEYVIEW(dev)) {
+ u32 freq_sts, val;
+
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS,
+ &freq_sts);
+ seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
+ seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
+
+ valleyview_punit_read(dev_priv, PUNIT_FUSE_BUS1, &val);
+ seq_printf(m, "max GPU freq: %d MHz\n",
+ vlv_gpu_freq(dev_priv->mem_freq, val));
+
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_LFM, &val);
+ seq_printf(m, "min GPU freq: %d MHz\n",
+ vlv_gpu_freq(dev_priv->mem_freq, val));
+
+ seq_printf(m, "current GPU freq: %d MHz\n",
+ vlv_gpu_freq(dev_priv->mem_freq,
+ (freq_sts >> 8) & 0xff));
} else {
seq_printf(m, "no P-state info available\n");
}
@@ -1806,7 +1825,11 @@ i915_max_freq_get(void *data, u64 *val)
if (ret)
return ret;
- *val = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
+ if (IS_VALLEYVIEW(dev))
+ *val = vlv_gpu_freq(dev_priv->mem_freq,
+ dev_priv->rps.max_delay);
+ else
+ *val = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
@@ -1831,9 +1854,16 @@ i915_max_freq_set(void *data, u64 val)
/*
* Turbo will still be enabled, but won't go above the set value.
*/
- do_div(val, GT_FREQUENCY_MULTIPLIER);
- dev_priv->rps.max_delay = val;
- gen6_set_rps(dev, val);
+ if (IS_VALLEYVIEW(dev)) {
+ val = vlv_freq_opcode(dev_priv->mem_freq, val);
+ dev_priv->rps.max_delay = val;
+ gen6_set_rps(dev, val);
+ } else {
+ do_div(val, GT_FREQUENCY_MULTIPLIER);
+ dev_priv->rps.max_delay = val;
+ gen6_set_rps(dev, val);
+ }
+
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
@@ -1857,7 +1887,11 @@ i915_min_freq_get(void *data, u64 *val)
if (ret)
return ret;
- *val = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
+ if (IS_VALLEYVIEW(dev))
+ *val = vlv_gpu_freq(dev_priv->mem_freq,
+ dev_priv->rps.min_delay);
+ else
+ *val = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
@@ -1882,9 +1916,15 @@ i915_min_freq_set(void *data, u64 val)
/*
* Turbo will still be enabled, but won't go below the set value.
*/
- do_div(val, GT_FREQUENCY_MULTIPLIER);
- dev_priv->rps.min_delay = val;
- gen6_set_rps(dev, val);
+ if (IS_VALLEYVIEW(dev)) {
+ val = vlv_freq_opcode(dev_priv->mem_freq, val);
+ dev_priv->rps.min_delay = val;
+ valleyview_set_rps(dev, val);
+ } else {
+ do_div(val, GT_FREQUENCY_MULTIPLIER);
+ dev_priv->rps.min_delay = val;
+ gen6_set_rps(dev, val);
+ }
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index db7d0be..3d146f6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1842,6 +1842,9 @@ extern void intel_disable_fbc(struct drm_device *dev);
extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
extern void intel_init_pch_refclk(struct drm_device *dev);
extern void gen6_set_rps(struct drm_device *dev, u8 val);
+extern void valleyview_set_rps(struct drm_device *dev, u8 val);
+extern int valleyview_rps_max_freq(struct drm_i915_private *dev_priv);
+extern int valleyview_rps_min_freq(struct drm_i915_private *dev_priv);
extern void intel_detect_pch(struct drm_device *dev);
extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
extern int intel_enable_rc6(const struct drm_device *dev);
@@ -1873,6 +1876,8 @@ int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val)
int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val);
int valleyview_punit_read(struct drm_i915_private *dev_priv, u8 addr, u32 *val);
int valleyview_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val);
+int valleyview_nc_read(struct drm_i915_private *dev_priv, u8 addr, u32 *val);
+
int vlv_gpu_freq(int ddr_freq, int val);
int vlv_freq_opcode(int ddr_freq, int val);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 4c5bdd0..8eda16e 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -448,7 +448,10 @@ static void gen6_pm_rps_work(struct work_struct *work)
*/
if (!(new_delay > dev_priv->rps.max_delay ||
new_delay < dev_priv->rps.min_delay)) {
- gen6_set_rps(dev_priv->dev, new_delay);
+ if (IS_VALLEYVIEW(dev_priv->dev))
+ valleyview_set_rps(dev_priv->dev, new_delay);
+ else
+ gen6_set_rps(dev_priv->dev, new_delay);
}
mutex_unlock(&dev_priv->rps.hw_lock);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 466bfb2..281b35f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4403,6 +4403,7 @@
#define GEN6_RC_CTL_RC6_ENABLE (1<<18)
#define GEN6_RC_CTL_RC1e_ENABLE (1<<20)
#define GEN6_RC_CTL_RC7_ENABLE (1<<22)
+#define GEN7_RC_CTL_TO_MODE (1<<28)
#define GEN6_RC_CTL_EI_MODE(x) ((x)<<27)
#define GEN6_RC_CTL_HW_ENABLE (1<<31)
#define GEN6_RP_DOWN_TIMEOUT 0xA010
@@ -4493,12 +4494,32 @@
#define IOSF_BAR_SHIFT 1
#define IOSF_SB_BUSY (1<<0)
#define IOSF_PORT_PUNIT 0x4
+#define IOSF_PORT_NC 0x11
#define VLV_IOSF_DATA 0x182104
#define VLV_IOSF_ADDR 0x182108
#define PUNIT_OPCODE_REG_READ 6
#define PUNIT_OPCODE_REG_WRITE 7
+#define PUNIT_REG_GPU_LFM 0xd3
+#define PUNIT_REG_GPU_FREQ_REQ 0xd4
+#define PUNIT_REG_GPU_FREQ_STS 0xd8
+#define PUNIT_REG_MEDIA_TURBO_FREQ_REQ 0xdc
+
+#define PUNIT_FUSE_BUS2 0xf6 /* bits 47:40 */
+#define PUNIT_FUSE_BUS1 0xf5 /* bits 55:48 */
+
+#define IOSF_NC_FB_GFX_FREQ_FUSE 0x1c
+#define FB_GFX_MAX_FREQ_FUSE_SHIFT 3
+#define FB_GFX_MAX_FREQ_FUSE_MASK 0x000007f8
+#define FB_GFX_FGUARANTEED_FREQ_FUSE_SHIFT 11
+#define FB_GFX_FGUARANTEED_FREQ_FUSE_MASK 0x0007f800
+#define IOSF_NC_FB_GFX_FMAX_FUSE_HI 0x34
+#define FB_FMAX_VMIN_FREQ_HI_MASK 0x00000007
+#define IOSF_NC_FB_GFX_FMAX_FUSE_LO 0x30
+#define FB_FMAX_VMIN_FREQ_LO_SHIFT 27
+#define FB_FMAX_VMIN_FREQ_LO_MASK 0xf8000000
+
#define GEN6_GT_CORE_STATUS 0x138060
#define GEN6_CORE_CPD_STATE_MASK (7<<4)
#define GEN6_RCn_MASK 7
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index a3a3e22..ee050e9 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -212,7 +212,10 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
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 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute
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);
@@ -246,21 +252,33 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
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 = (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);
+
+ hw_max = valleyview_rps_max_freq(dev_priv);
+ hw_min = valleyview_rps_min_freq(dev_priv);
+ } else {
+ val /= GT_FREQUENCY_MULTIPLIER;
- if (val < hw_min || val > hw_max || val < dev_priv->rps.min_delay) {
+ rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
+ hw_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;
}
- 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;
@@ -277,7 +295,10 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute
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);
@@ -297,21 +318,32 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
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 = (rp_state_cap & 0xff);
- 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 = (rp_state_cap & 0xff);
+ 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;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 7f313c0..379c7ad 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2481,6 +2481,52 @@ void gen6_set_rps(struct drm_device *dev, u8 val)
trace_intel_gpu_freq_change(val * 50);
}
+void valleyview_set_rps(struct drm_device *dev, u8 val)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned long timeout = jiffies + msecs_to_jiffies(10);
+ u32 limits = gen6_rps_limits(dev_priv, &val);
+ u32 pval;
+
+ WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
+ WARN_ON(val > dev_priv->rps.max_delay);
+ WARN_ON(val < dev_priv->rps.min_delay);
+
+ DRM_DEBUG_DRIVER("gpu freq request from %d to %d\n",
+ vlv_gpu_freq(dev_priv->mem_freq,
+ dev_priv->rps.cur_delay),
+ vlv_gpu_freq(dev_priv->mem_freq, val));
+
+ if (val == dev_priv->rps.cur_delay)
+ return;
+
+ valleyview_punit_write(dev_priv, PUNIT_REG_GPU_FREQ_REQ, val);
+
+ do {
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS, &pval);
+ if (time_after(jiffies, timeout)) {
+ DRM_DEBUG_DRIVER("timed out waiting for Punit\n");
+ break;
+ }
+ udelay(10);
+ } while (pval & 1);
+
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS, &pval);
+ if ((pval >> 8) != val)
+ DRM_DEBUG_DRIVER("punit overrode freq: %d requested, but got %d\n",
+ val, pval >> 8);
+
+ /* Make sure we continue to get interrupts
+ * until we hit the minimum or maximum frequencies.
+ */
+ I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, limits);
+
+ dev_priv->rps.cur_delay = pval >> 8;
+
+ trace_intel_gpu_freq_change(vlv_gpu_freq(dev_priv->mem_freq, val));
+}
+
+
static void gen6_disable_rps(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2727,6 +2773,126 @@ static void gen6_update_ring_freq(struct drm_device *dev)
}
}
+int valleyview_rps_max_freq(struct drm_i915_private *dev_priv)
+{
+ u32 val, rp0;
+
+ valleyview_nc_read(dev_priv, IOSF_NC_FB_GFX_FREQ_FUSE, &val);
+
+ rp0 = (val & FB_GFX_MAX_FREQ_FUSE_MASK) >> FB_GFX_MAX_FREQ_FUSE_SHIFT;
+ /* Clamp to max */
+ rp0 = min(rp0, (u32)0xea);
+
+ return rp0;
+}
+
+static int valleyview_rps_rpe_freq(struct drm_i915_private *dev_priv)
+{
+ u32 val, rpe;
+
+ valleyview_nc_read(dev_priv, IOSF_NC_FB_GFX_FMAX_FUSE_LO, &val);
+ rpe = (val & FB_FMAX_VMIN_FREQ_LO_MASK) >> FB_FMAX_VMIN_FREQ_LO_SHIFT;
+ valleyview_nc_read(dev_priv, IOSF_NC_FB_GFX_FMAX_FUSE_HI, &val);
+ rpe |= (val & FB_FMAX_VMIN_FREQ_HI_MASK) << 5;
+
+ return rpe;
+}
+
+int valleyview_rps_min_freq(struct drm_i915_private *dev_priv)
+{
+ u32 val;
+
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_LFM, &val);
+
+ return val & 0xff;
+}
+
+static void valleyview_enable_rps(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
+ u32 gtfifodbg, val, rpe;
+ int i;
+
+ WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
+
+ if ((gtfifodbg = I915_READ(GTFIFODBG))) {
+ DRM_ERROR("GT fifo had a previous error %x\n", gtfifodbg);
+ I915_WRITE(GTFIFODBG, gtfifodbg);
+ }
+
+ gen6_gt_force_wake_get(dev_priv);
+
+ I915_WRITE(GEN6_RP_UP_THRESHOLD, 59400);
+ I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 245000);
+ I915_WRITE(GEN6_RP_UP_EI, 66000);
+ I915_WRITE(GEN6_RP_DOWN_EI, 350000);
+
+ I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
+
+ I915_WRITE(GEN6_RP_CONTROL,
+ GEN6_RP_MEDIA_TURBO |
+ GEN6_RP_MEDIA_HW_NORMAL_MODE |
+ GEN6_RP_MEDIA_IS_GFX |
+ GEN6_RP_ENABLE |
+ GEN6_RP_UP_BUSY_AVG |
+ GEN6_RP_DOWN_IDLE_CONT);
+
+ I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 0x00280000);
+ I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000);
+ I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25);
+
+ for_each_ring(ring, dev_priv, i)
+ I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
+
+ I915_WRITE(GEN6_RC6_THRESHOLD, 0xc350);
+
+ /* allows RC6 residency counter to work */
+ I915_WRITE(0x138104, _MASKED_BIT_ENABLE(0x3));
+ I915_WRITE(GEN6_RC_CONTROL,
+ GEN7_RC_CTL_TO_MODE);
+
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS, &val);
+ dev_priv->mem_freq = 800 + (266 * (val >> 6) & 3);
+ DRM_DEBUG_DRIVER("DDR speed: %d MHz", dev_priv->mem_freq);
+
+ DRM_DEBUG_DRIVER("GPLL enabled? %s\n", val & 0x10 ? "yes" : "no");
+ DRM_DEBUG_DRIVER("GPU status: 0x%08x\n", val);
+
+ DRM_DEBUG_DRIVER("current GPU freq: %d\n",
+ vlv_gpu_freq(dev_priv->mem_freq, (val >> 8) & 0xff));
+ dev_priv->rps.cur_delay = (val >> 8) & 0xff;
+
+ dev_priv->rps.max_delay = valleyview_rps_max_freq(dev_priv);
+ DRM_DEBUG_DRIVER("max GPU freq: %d\n", vlv_gpu_freq(dev_priv->mem_freq,
+ dev_priv->rps.max_delay));
+
+ rpe = valleyview_rps_rpe_freq(dev_priv);
+ DRM_DEBUG_DRIVER("RPe GPU freq: %d\n",
+ vlv_gpu_freq(dev_priv->mem_freq, rpe));
+
+ val = valleyview_rps_min_freq(dev_priv);
+ DRM_DEBUG_DRIVER("min GPU freq: %d\n", vlv_gpu_freq(dev_priv->mem_freq,
+ val));
+ dev_priv->rps.min_delay = val;
+
+ DRM_DEBUG_DRIVER("setting GPU freq to %d\n",
+ vlv_gpu_freq(dev_priv->mem_freq, rpe));
+
+ valleyview_set_rps(dev_priv->dev, rpe);
+
+ /* requires MSI enabled */
+ I915_WRITE(GEN6_PMIER, GEN6_PM_DEFERRED_EVENTS);
+ spin_lock_irq(&dev_priv->rps.lock);
+ WARN_ON(dev_priv->rps.pm_iir != 0);
+ I915_WRITE(GEN6_PMIMR, 0);
+ spin_unlock_irq(&dev_priv->rps.lock);
+ /* enable all PM interrupts */
+ I915_WRITE(GEN6_PMINTRMSK, 0);
+
+ gen6_gt_force_wake_put(dev_priv);
+}
+
void ironlake_teardown_rc6(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3453,7 +3619,7 @@ void intel_disable_gt_powersave(struct drm_device *dev)
if (IS_IRONLAKE_M(dev)) {
ironlake_disable_drps(dev);
ironlake_disable_rc6(dev);
- } else if (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev)) {
+ } else if (INTEL_INFO(dev)->gen >= 6) {
cancel_delayed_work_sync(&dev_priv->rps.delayed_resume_work);
mutex_lock(&dev_priv->rps.hw_lock);
gen6_disable_rps(dev);
@@ -3469,8 +3635,13 @@ static void intel_gen6_powersave_work(struct work_struct *work)
struct drm_device *dev = dev_priv->dev;
mutex_lock(&dev_priv->rps.hw_lock);
- gen6_enable_rps(dev);
- gen6_update_ring_freq(dev);
+
+ if (IS_VALLEYVIEW(dev)) {
+ valleyview_enable_rps(dev);
+ } else {
+ gen6_enable_rps(dev);
+ gen6_update_ring_freq(dev);
+ }
mutex_unlock(&dev_priv->rps.hw_lock);
}
@@ -3482,7 +3653,7 @@ void intel_enable_gt_powersave(struct drm_device *dev)
ironlake_enable_drps(dev);
ironlake_enable_rc6(dev);
intel_init_emon(dev);
- } else if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) {
+ } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
/*
* PCU communication is slow and this doesn't need to be
* done at any specific time, so do this out of our fast path
@@ -4527,14 +4698,13 @@ int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val)
return 0;
}
-static int vlv_punit_rw(struct drm_i915_private *dev_priv, u8 opcode,
+static int vlv_punit_rw(struct drm_i915_private *dev_priv, u32 port, u8 opcode,
u8 addr, u32 *val)
{
- u32 cmd, devfn, port, be, bar;
+ u32 cmd, devfn, be, bar;
bar = 0;
be = 0xf;
- port = IOSF_PORT_PUNIT;
devfn = PCI_DEVFN(2, 0);
cmd = (devfn << IOSF_DEVFN_SHIFT) | (opcode << IOSF_OPCODE_SHIFT) |
@@ -4556,7 +4726,7 @@ static int vlv_punit_rw(struct drm_i915_private *dev_priv, u8 opcode,
I915_WRITE(VLV_IOSF_DOORBELL_REQ, cmd);
if (wait_for((I915_READ(VLV_IOSF_DOORBELL_REQ) & IOSF_SB_BUSY) == 0,
- 500)) {
+ 5)) {
DRM_ERROR("timeout waiting for pcode %s (%d) to finish\n",
opcode == PUNIT_OPCODE_REG_READ ? "read" : "write",
addr);
@@ -4572,12 +4742,20 @@ static int vlv_punit_rw(struct drm_i915_private *dev_priv, u8 opcode,
int valleyview_punit_read(struct drm_i915_private *dev_priv, u8 addr, u32 *val)
{
- return vlv_punit_rw(dev_priv, PUNIT_OPCODE_REG_READ, addr, val);
+ return vlv_punit_rw(dev_priv, IOSF_PORT_PUNIT, PUNIT_OPCODE_REG_READ,
+ addr, val);
}
int valleyview_punit_write(struct drm_i915_private *dev_priv, u8 addr, u32 val)
{
- return vlv_punit_rw(dev_priv, PUNIT_OPCODE_REG_WRITE, addr, &val);
+ return vlv_punit_rw(dev_priv, IOSF_PORT_PUNIT, PUNIT_OPCODE_REG_WRITE,
+ addr, &val);
+}
+
+int valleyview_nc_read(struct drm_i915_private *dev_priv, u8 addr, u32 *val)
+{
+ return vlv_punit_rw(dev_priv, IOSF_PORT_NC, PUNIT_OPCODE_REG_READ,
+ addr, val);
}
int vlv_gpu_freq(int ddr_freq, int val)
--
1.7.10.4
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