On Fri, 2017-02-17 at 17:39 +0200, Imre Deak wrote:
> So far the sync_hw hook wasn't called for power wells not belonging to
> any power domain, that is the GEN9 PW1 and MISC_IO power wells. This
> wasn't a problem so far since the goal of the sync_hw hook - to clear
> the corresponding BIOS request bit - was guaranteed by clearing the
> whole BIOS request register elsewhere. This will change with the next
> patch, so fix up the inconsistency.
>
> While at it clean up the power well iterator helpers and move them to
> the rest of iterators.
>
> v2:
> - Clean up the power well iterator helpers. (Ander)
> - Move the helpers to i915_drv.h.
>
> Cc: Ander Conselvan de Oliveira <conselv...@gmail.com>
> Cc: David Weinehall <david.weineh...@linux.intel.com>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Signed-off-by: Imre Deak <imre.d...@intel.com>
> Reviewed-by: Ander Conselvan de Oliveira <conselv...@gmail.com> (v1)
s/(v1)//
Ander
> ---
> drivers/gpu/drm/i915/i915_drv.h | 20 ++++++++++++++++++++
> drivers/gpu/drm/i915/intel_runtime_pm.c | 28 ++++------------------------
> 2 files changed, 24 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index b5f150b..d138508 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -500,6 +500,26 @@ struct i915_hotplug {
> for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
> for_each_if (BIT_ULL(domain) & (mask))
>
> +#define for_each_power_well(__dev_priv, __power_well)
> \
> + for ((__power_well) = (__dev_priv)->power_domains.power_wells; \
> + (__power_well) - (__dev_priv)->power_domains.power_wells < \
> + (__dev_priv)->power_domains.power_well_count; \
> + (__power_well)++)
> +
> +#define for_each_power_well_rev(__dev_priv, __power_well)
> \
> + for ((__power_well) = (__dev_priv)->power_domains.power_wells +
> \
> + (__dev_priv)->power_domains.power_well_count - 1;
> \
> + (__power_well) - (__dev_priv)->power_domains.power_wells >= 0;
> \
> + (__power_well)--)
> +
> +#define for_each_power_domain_well(__dev_priv, __power_well, __domain_mask)
> \
> + for_each_power_well(__dev_priv, __power_well)
> \
> + for_each_if ((__power_well)->domains & (__domain_mask))
> +
> +#define for_each_power_domain_well_rev(__dev_priv, __power_well,
> __domain_mask) \
> + for_each_power_well_rev(__dev_priv, __power_well)
> \
> + for_each_if ((__power_well)->domains & (__domain_mask))
> +
> struct drm_i915_private;
> struct i915_mm_struct;
> struct i915_mmu_object;
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 0f64bc1..9bbbdbc 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -49,19 +49,6 @@
> * present for a given platform.
> */
>
> -#define for_each_power_well(i, power_well, domain_mask, power_domains)
> \
> - for (i = 0; \
> - i < (power_domains)->power_well_count && \
> - ((power_well) = &(power_domains)->power_wells[i]); \
> - i++) \
> - for_each_if ((power_well)->domains & (domain_mask))
> -
> -#define for_each_power_well_rev(i, power_well, domain_mask, power_domains) \
> - for (i = (power_domains)->power_well_count - 1; \
> - i >= 0 && ((power_well) = &(power_domains)->power_wells[i]);\
> - i--) \
> - for_each_if ((power_well)->domains & (domain_mask))
> -
> bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
> int power_well_id);
>
> @@ -198,19 +185,15 @@ static bool hsw_power_well_enabled(struct
> drm_i915_private *dev_priv,
> bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
> enum intel_display_power_domain domain)
> {
> - struct i915_power_domains *power_domains;
> struct i915_power_well *power_well;
> bool is_enabled;
> - int i;
>
> if (dev_priv->pm.suspended)
> return false;
>
> - power_domains = &dev_priv->power_domains;
> -
> is_enabled = true;
>
> - for_each_power_well_rev(i, power_well, BIT_ULL(domain), power_domains) {
> + for_each_power_domain_well_rev(dev_priv, power_well, BIT_ULL(domain)) {
> if (power_well->always_on)
> continue;
>
> @@ -1663,9 +1646,8 @@ __intel_display_power_get_domain(struct
> drm_i915_private *dev_priv,
> {
> struct i915_power_domains *power_domains = &dev_priv->power_domains;
> struct i915_power_well *power_well;
> - int i;
>
> - for_each_power_well(i, power_well, BIT_ULL(domain), power_domains)
> + for_each_power_domain_well(dev_priv, power_well, BIT_ULL(domain))
> intel_power_well_get(dev_priv, power_well);
>
> power_domains->domain_use_count[domain]++;
> @@ -1749,7 +1731,6 @@ void intel_display_power_put(struct drm_i915_private
> *dev_priv,
> {
> struct i915_power_domains *power_domains;
> struct i915_power_well *power_well;
> - int i;
>
> power_domains = &dev_priv->power_domains;
>
> @@ -1760,7 +1741,7 @@ void intel_display_power_put(struct drm_i915_private
> *dev_priv,
> intel_display_power_domain_str(domain));
> power_domains->domain_use_count[domain]--;
>
> - for_each_power_well_rev(i, power_well, BIT_ULL(domain), power_domains)
> + for_each_power_domain_well_rev(dev_priv, power_well, BIT_ULL(domain))
> intel_power_well_put(dev_priv, power_well);
>
> mutex_unlock(&power_domains->lock);
> @@ -2424,10 +2405,9 @@ static void intel_power_domains_sync_hw(struct
> drm_i915_private *dev_priv)
> {
> struct i915_power_domains *power_domains = &dev_priv->power_domains;
> struct i915_power_well *power_well;
> - int i;
>
> mutex_lock(&power_domains->lock);
> - for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) {
> + for_each_power_well(dev_priv, power_well) {
> power_well->ops->sync_hw(dev_priv, power_well);
> power_well->hw_enabled = power_well->ops->is_enabled(dev_priv,
>
> power_well);
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