On 12/05/2017 14:53, Chris Wilson wrote:
Storing both the mask and the id is redundant as we can trivially
compute one from the other. As the mask is more frequently used, remove
the id.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuopp...@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
drivers/gpu/drm/i915/intel_uncore.c | 12 ++++++------
drivers/gpu/drm/i915/intel_uncore.h | 6 ++----
3 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index bd9abef40c66..a2c9c3e792e1 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1468,7 +1468,7 @@ static int i915_forcewake_domains(struct seq_file *m,
void *data)
for_each_fw_domain(fw_domain, i915, tmp)
seq_printf(m, "%s.wake_count = %u\n",
- intel_uncore_forcewake_domain_to_str(fw_domain->id),
+ intel_uncore_forcewake_domain_to_str(fw_domain),
READ_ONCE(fw_domain->wake_count));
return 0;
diff --git a/drivers/gpu/drm/i915/intel_uncore.c
b/drivers/gpu/drm/i915/intel_uncore.c
index 08d7d08438c0..7eaa592aed26 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -40,8 +40,10 @@ static const char * const forcewake_domain_names[] = {
};
const char *
-intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id)
+intel_uncore_forcewake_domain_to_str(const struct
intel_uncore_forcewake_domain *d)
{
+ unsigned int id = ilog2(d->mask);
+
BUILD_BUG_ON(ARRAY_SIZE(forcewake_domain_names) != FW_DOMAIN_ID_COUNT);
if (id >= 0 && id < FW_DOMAIN_ID_COUNT)
@@ -77,7 +79,7 @@ fw_domain_wait_ack_clear(const struct drm_i915_private *i915,
FORCEWAKE_KERNEL) == 0,
FORCEWAKE_ACK_TIMEOUT_MS))
DRM_ERROR("%s: timed out waiting for forcewake ack to clear.\n",
- intel_uncore_forcewake_domain_to_str(d->id));
+ intel_uncore_forcewake_domain_to_str(d));
}
static inline void
@@ -95,7 +97,7 @@ fw_domain_wait_ack(const struct drm_i915_private *i915,
FORCEWAKE_KERNEL),
FORCEWAKE_ACK_TIMEOUT_MS))
DRM_ERROR("%s: timed out waiting for forcewake ack request.\n",
- intel_uncore_forcewake_domain_to_str(d->id));
+ intel_uncore_forcewake_domain_to_str(d));
}
static inline void
@@ -209,7 +211,7 @@ intel_uncore_fw_release_timer(struct hrtimer *timer)
struct intel_uncore_forcewake_domain *domain =
container_of(timer, struct intel_uncore_forcewake_domain, timer);
struct drm_i915_private *dev_priv =
- container_of(domain, struct drm_i915_private,
uncore.fw_domain[domain->id]);
+ container_of(domain, struct drm_i915_private,
uncore.fw_domain[ilog2(domain->mask)]);
Not sure I see the benefit of removing one field and then needing this
ilog2 in the timer callback.
Regards,
Tvrtko
unsigned long irqflags;
assert_rpm_device_not_suspended(dev_priv);
@@ -1149,8 +1151,6 @@ static void fw_domain_init(struct drm_i915_private
*dev_priv,
d->reg_set = reg_set;
d->reg_ack = reg_ack;
- d->id = domain_id;
-
BUILD_BUG_ON(FORCEWAKE_RENDER != (1 << FW_DOMAIN_ID_RENDER));
BUILD_BUG_ON(FORCEWAKE_BLITTER != (1 << FW_DOMAIN_ID_BLITTER));
BUILD_BUG_ON(FORCEWAKE_MEDIA != (1 << FW_DOMAIN_ID_MEDIA));
diff --git a/drivers/gpu/drm/i915/intel_uncore.h
b/drivers/gpu/drm/i915/intel_uncore.h
index ff6fe2bb0ccf..5fec5fd4346c 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -93,8 +93,7 @@ struct intel_uncore {
u32 fw_reset;
struct intel_uncore_forcewake_domain {
- enum forcewake_domain_id id;
- enum forcewake_domains mask;
+ unsigned int mask;
unsigned int wake_count;
struct hrtimer timer;
i915_reg_t reg_set;
@@ -123,8 +122,7 @@ void intel_uncore_resume_early(struct drm_i915_private
*dev_priv);
u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv);
void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
-const char *intel_uncore_forcewake_domain_to_str(const enum
forcewake_domain_id id);
-
+const char *intel_uncore_forcewake_domain_to_str(const struct
intel_uncore_forcewake_domain *domain);
enum forcewake_domains
intel_uncore_forcewake_for_reg(struct drm_i915_private *dev_priv,
i915_reg_t reg, unsigned int op);
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