[PATCH 54/65] split-rc6/rps
Chris Wilson
chris at chris-wilson.co.uk
Fri Jan 19 09:15:04 UTC 2018
---
drivers/gpu/drm/i915/i915_drv.c | 6 +--
drivers/gpu/drm/i915/i915_drv.h | 5 ---
drivers/gpu/drm/i915/i915_gem.c | 9 ++--
drivers/gpu/drm/i915/i915_gem_request.c | 4 +-
drivers/gpu/drm/i915/intel_display.c | 5 ++-
drivers/gpu/drm/i915/intel_gt_pm.c | 75 +++++++++++++--------------------
drivers/gpu/drm/i915/intel_gt_pm.h | 14 +++---
7 files changed, 53 insertions(+), 65 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f27ac03b04d4..a0c8ef90a419 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1051,7 +1051,7 @@ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv)
*/
static void i915_driver_cleanup_mmio(struct drm_i915_private *dev_priv)
{
- intel_sanitize_gt_powersave(dev_priv);
+ intel_gt_pm_sanitize(dev_priv);
intel_uncore_fini(dev_priv);
i915_mmio_cleanup(dev_priv);
pci_dev_put(dev_priv->bridge_dev);
@@ -1160,7 +1160,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
intel_uncore_sanitize(dev_priv);
/* BIOS often leaves RC6 enabled, but disable it for hw init */
- intel_sanitize_gt_powersave(dev_priv);
+ intel_gt_pm_sanitize(dev_priv);
intel_opregion_setup(dev_priv);
@@ -1713,7 +1713,7 @@ static int i915_drm_resume(struct drm_device *dev)
int ret;
disable_rpm_wakeref_asserts(dev_priv);
- intel_sanitize_gt_powersave(dev_priv);
+ intel_gt_pm_sanitize(dev_priv);
ret = i915_ggtt_enable_hw(dev_priv);
if (ret)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 41a7559e9275..7e7c03999b19 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -939,14 +939,9 @@ struct intel_rc6 {
bool enabled;
};
-struct intel_llc_pstate {
- bool enabled;
-};
-
struct intel_gen6_power_mgmt {
struct intel_rps rps;
struct intel_rc6 rc6;
- struct intel_llc_pstate llc_pstate;
};
/* defined intel_pm.c */
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a6deb133b011..08d39216eb17 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3152,8 +3152,9 @@ void i915_gem_reset(struct drm_i915_private *dev_priv)
i915_gem_restore_fences(dev_priv);
if (dev_priv->gt.awake) {
- intel_sanitize_gt_powersave(dev_priv);
- intel_enable_gt_powersave(dev_priv);
+ intel_gt_pm_sanitize(dev_priv);
+ intel_gt_enable_rps(dev_priv);
+ intel_gt_enable_rc6(dev_priv);
if (INTEL_GEN(dev_priv) >= 6)
gen6_rps_busy(dev_priv);
}
@@ -5269,7 +5270,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
goto err_context;
}
- intel_init_gt_powersave(dev_priv);
+ intel_gt_pm_init(dev_priv);
ret = intel_uc_init(dev_priv);
if (ret)
@@ -5323,7 +5324,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
intel_uc_fini(dev_priv);
err_pm:
if (ret != -EIO) {
- intel_cleanup_gt_powersave(dev_priv);
+ intel_gt_pm_fini(dev_priv);
i915_gem_cleanup_engines(dev_priv);
}
err_context:
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index 0811c21adb7b..460609229958 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -276,7 +276,9 @@ static void mark_busy(struct drm_i915_private *i915)
i915->gt.awake = true;
- intel_enable_gt_powersave(i915);
+ intel_gt_enable_rps(i915);
+ intel_gt_enable_rc6(i915);
+
i915_update_gfx_val(i915);
if (INTEL_GEN(i915) >= 6)
gen6_rps_busy(i915);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8a3de22589ef..b3883f8f7f7c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -15239,7 +15239,8 @@ void intel_modeset_cleanup(struct drm_device *dev)
flush_work(&dev_priv->atomic_helper.free_work);
WARN_ON(!llist_empty(&dev_priv->atomic_helper.free_list));
- intel_disable_gt_powersave(dev_priv);
+ intel_gt_disable_rps(dev_priv);
+ intel_gt_disable_rc6(dev_priv);
/*
* Interrupts and polling as the first thing to avoid creating havoc.
@@ -15268,7 +15269,7 @@ void intel_modeset_cleanup(struct drm_device *dev)
intel_cleanup_overlay(dev_priv);
- intel_cleanup_gt_powersave(dev_priv);
+ intel_gt_pm_fini(dev_priv);
intel_teardown_gmbus(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_gt_pm.c b/drivers/gpu/drm/i915/intel_gt_pm.c
index 35dd3f19c132..7017cba8e939 100644
--- a/drivers/gpu/drm/i915/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/intel_gt_pm.c
@@ -2201,16 +2201,18 @@ static void intel_init_emon(struct drm_i915_private *dev_priv)
dev_priv->ips.corr = (lcfuse & LCFUSE_HIV_MASK);
}
-void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv)
+void intel_gt_pm_sanitize(struct drm_i915_private *dev_priv)
{
dev_priv->gt_pm.rps.enabled = true; /* force RPS disabling */
+ intel_gt_disable_rps(dev_priv);
+
dev_priv->gt_pm.rc6.enabled = true; /* force RC6 disabling */
- intel_disable_gt_powersave(dev_priv);
+ intel_gt_disable_rc6(dev_priv);
gen6_reset_rps_interrupts(dev_priv);
}
-void intel_init_gt_powersave(struct drm_i915_private *dev_priv)
+void intel_gt_pm_init(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
@@ -2265,22 +2267,13 @@ void intel_init_gt_powersave(struct drm_i915_private *dev_priv)
/* Finally allow us to boost to max by default */
rps->boost_freq = rps->max_freq;
- mutex_unlock(&rps->lock);
-}
-
-static inline void intel_enable_llc_pstate(struct drm_i915_private *i915)
-{
- lockdep_assert_held(&i915->gt_pm.rps.lock);
-
- if (i915->gt_pm.llc_pstate.enabled)
- return;
+ if (INTEL_GEN(dev_priv) >= 6)
+ gen6_update_ring_freq(dev_priv);
- gen6_update_ring_freq(i915);
-
- i915->gt_pm.llc_pstate.enabled = true;
+ mutex_unlock(&rps->lock);
}
-static void intel_enable_rc6(struct drm_i915_private *dev_priv)
+static void __enable_rc6(struct drm_i915_private *dev_priv)
{
lockdep_assert_held(&dev_priv->gt_pm.rps.lock);
@@ -2301,7 +2294,7 @@ static void intel_enable_rc6(struct drm_i915_private *dev_priv)
dev_priv->gt_pm.rc6.enabled = true;
}
-static void intel_enable_rps(struct drm_i915_private *dev_priv)
+static void __enable_rps(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
@@ -2334,37 +2327,27 @@ static void intel_enable_rps(struct drm_i915_private *dev_priv)
rps->enabled = true;
}
-void intel_enable_gt_powersave(struct drm_i915_private *dev_priv)
+void intel_gt_enable_rc6(struct drm_i915_private *dev_priv)
{
- /* Powersaving is controlled by the host when inside a VM */
- if (intel_vgpu_active(dev_priv))
+ if (!HAS_RC6(dev_priv))
return;
mutex_lock(&dev_priv->gt_pm.rps.lock);
-
- if (HAS_RC6(dev_priv))
- intel_enable_rc6(dev_priv);
- if (HAS_RPS(dev_priv))
- intel_enable_rps(dev_priv);
- if (HAS_LLC(dev_priv))
- intel_enable_llc_pstate(dev_priv);
-
+ __enable_rc6(dev_priv);
mutex_unlock(&dev_priv->gt_pm.rps.lock);
}
-static inline void intel_disable_llc_pstate(struct drm_i915_private *i915)
+void intel_gt_enable_rps(struct drm_i915_private *dev_priv)
{
- lockdep_assert_held(&i915->gt_pm.rps.lock);
-
- if (!i915->gt_pm.llc_pstate.enabled)
+ if (!HAS_RPS(dev_priv))
return;
- /* Currently there is no HW configuration to be done to disable. */
-
- i915->gt_pm.llc_pstate.enabled = false;
+ mutex_lock(&dev_priv->gt_pm.rps.lock);
+ __enable_rps(dev_priv);
+ mutex_unlock(&dev_priv->gt_pm.rps.lock);
}
-static void intel_disable_rc6(struct drm_i915_private *dev_priv)
+static void __disable_rc6(struct drm_i915_private *dev_priv)
{
lockdep_assert_held(&dev_priv->gt_pm.rps.lock);
@@ -2383,7 +2366,14 @@ static void intel_disable_rc6(struct drm_i915_private *dev_priv)
dev_priv->gt_pm.rc6.enabled = false;
}
-static void intel_disable_rps(struct drm_i915_private *dev_priv)
+void intel_gt_disable_rc6(struct drm_i915_private *dev_priv)
+{
+ mutex_lock(&dev_priv->gt_pm.rps.lock);
+ __disable_rc6(dev_priv);
+ mutex_unlock(&dev_priv->gt_pm.rps.lock);
+}
+
+static void __disable_rps(struct drm_i915_private *dev_priv)
{
lockdep_assert_held(&dev_priv->gt_pm.rps.lock);
@@ -2404,19 +2394,14 @@ static void intel_disable_rps(struct drm_i915_private *dev_priv)
dev_priv->gt_pm.rps.enabled = false;
}
-void intel_disable_gt_powersave(struct drm_i915_private *dev_priv)
+void intel_gt_disable_rps(struct drm_i915_private *dev_priv)
{
mutex_lock(&dev_priv->gt_pm.rps.lock);
-
- intel_disable_rc6(dev_priv);
- intel_disable_rps(dev_priv);
- if (HAS_LLC(dev_priv))
- intel_disable_llc_pstate(dev_priv);
-
+ __disable_rps(dev_priv);
mutex_unlock(&dev_priv->gt_pm.rps.lock);
}
-void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv)
+void intel_gt_pm_fini(struct drm_i915_private *dev_priv)
{
if (IS_VALLEYVIEW(dev_priv))
valleyview_cleanup_gt_powersave(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_gt_pm.h b/drivers/gpu/drm/i915/intel_gt_pm.h
index d5103e8eeb1a..d7715995cb8e 100644
--- a/drivers/gpu/drm/i915/intel_gt_pm.h
+++ b/drivers/gpu/drm/i915/intel_gt_pm.h
@@ -27,12 +27,16 @@
void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
void intel_gpu_ips_teardown(void);
-void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
+void intel_gt_pm_sanitize(struct drm_i915_private *dev_priv);
-void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
-void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
-void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
-void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
+void intel_gt_pm_init(struct drm_i915_private *dev_priv);
+void intel_gt_pm_fini(struct drm_i915_private *dev_priv);
+
+void intel_gt_enable_rps(struct drm_i915_private *dev_priv);
+void intel_gt_disable_rps(struct drm_i915_private *dev_priv);
+
+void intel_gt_enable_rc6(struct drm_i915_private *dev_priv);
+void intel_gt_disable_rc6(struct drm_i915_private *dev_priv);
void gen6_rps_busy(struct drm_i915_private *dev_priv);
void gen6_rps_idle(struct drm_i915_private *dev_priv);
--
2.15.1
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