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drm/i915: Rename power_domains.wakeref to init_wakeref

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Rename power_domains.wakeref to power_domains.init_wakeref to make the
use of this reference clearer. The next patch adds tracking for another
power reference user of the power_domains functionality.

While at it add a missing zero wakeref assert when setting the wakeref.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130212200.2811939-8-imre.deak@intel.com
This commit is contained in:
Imre Deak
2020-11-30 23:21:58 +02:00
parent 719065500b
commit a0b024ed10
3 changed files with 11 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/i915/display/intel_display_power.c
View File

@@ -5658,7 +5658,8 @@ void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
* resources powered until display HW readout is complete. We drop
* this reference in intel_power_domains_enable().
*/
power_domains->wakeref =
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
power_domains->init_wakeref =
intel_display_power_get(i915, POWER_DOMAIN_INIT);
/* Disable power support if the user asked so. */
@@ -5683,7 +5684,7 @@ void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
void intel_power_domains_driver_remove(struct drm_i915_private *i915)
{
intel_wakeref_t wakeref __maybe_unused =
fetch_and_zero(&i915->power_domains.wakeref);
fetch_and_zero(&i915->power_domains.init_wakeref);
/* Remove the refcount we took to keep power well support disabled. */
if (!i915->params.disable_power_well)
@@ -5712,7 +5713,7 @@ void intel_power_domains_driver_remove(struct drm_i915_private *i915)
void intel_power_domains_enable(struct drm_i915_private *i915)
{
intel_wakeref_t wakeref __maybe_unused =
fetch_and_zero(&i915->power_domains.wakeref);
fetch_and_zero(&i915->power_domains.init_wakeref);
intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
intel_power_domains_verify_state(i915);
@@ -5729,8 +5730,8 @@ void intel_power_domains_disable(struct drm_i915_private *i915)
{
struct i915_power_domains *power_domains = &i915->power_domains;
drm_WARN_ON(&i915->drm, power_domains->wakeref);
power_domains->wakeref =
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
power_domains->init_wakeref =
intel_display_power_get(i915, POWER_DOMAIN_INIT);
intel_power_domains_verify_state(i915);
@@ -5752,7 +5753,7 @@ void intel_power_domains_suspend(struct drm_i915_private *i915,
{
struct i915_power_domains *power_domains = &i915->power_domains;
intel_wakeref_t wakeref __maybe_unused =
fetch_and_zero(&power_domains->wakeref);
fetch_and_zero(&power_domains->init_wakeref);
intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
@@ -5811,8 +5812,8 @@ void intel_power_domains_resume(struct drm_i915_private *i915)
intel_power_domains_init_hw(i915, true);
power_domains->display_core_suspended = false;
} else {
drm_WARN_ON(&i915->drm, power_domains->wakeref);
power_domains->wakeref =
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
power_domains->init_wakeref =
intel_display_power_get(i915, POWER_DOMAIN_INIT);
}

2
drivers/gpu/drm/i915/display/intel_display_power.h
View File

@@ -212,7 +212,7 @@ struct i915_power_domains {
bool display_core_suspended;
int power_well_count;
intel_wakeref_t wakeref;
intel_wakeref_t init_wakeref;
struct mutex lock;
int domain_use_count[POWER_DOMAIN_NUM];

2
drivers/gpu/drm/i915/i915_debugfs.c
View File

@@ -1243,7 +1243,7 @@ static int i915_runtime_pm_status(struct seq_file *m, void *unused)
seq_puts(m, "Runtime power management not supported\n");
seq_printf(m, "Runtime power status: %s\n",
enableddisabled(!dev_priv->power_domains.wakeref));
enableddisabled(!dev_priv->power_domains.init_wakeref));
seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
seq_printf(m, "IRQs disabled: %s\n",