diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sbi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sbi.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_sbi.c b/drivers/gpu/drm/i915/intel_sbi.c index 5c6e517c73f4..41e85ac773dc 100644 --- a/drivers/gpu/drm/i915/intel_sbi.c +++ b/drivers/gpu/drm/i915/intel_sbi.c @@ -17,7 +17,7 @@ static int intel_sbi_rw(struct drm_i915_private *i915, u16 reg, struct intel_uncore *uncore = &i915->uncore; u32 cmd; - lockdep_assert_held(&i915->sb_lock); + lockdep_assert_held(&i915->sbi_lock); if (intel_wait_for_register_fw(uncore, SBI_CTL_STAT, SBI_BUSY, 0, @@ -57,6 +57,16 @@ static int intel_sbi_rw(struct drm_i915_private *i915, u16 reg, return 0; } +void intel_sbi_lock(struct drm_i915_private *i915) +{ + mutex_lock(&i915->sbi_lock); +} + +void intel_sbi_unlock(struct drm_i915_private *i915) +{ + mutex_unlock(&i915->sbi_lock); +} + u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg, enum intel_sbi_destination destination) { @@ -72,3 +82,13 @@ void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value, { intel_sbi_rw(i915, reg, destination, &value, false); } + +void intel_sbi_init(struct drm_i915_private *i915) +{ + mutex_init(&i915->sbi_lock); +} + +void intel_sbi_fini(struct drm_i915_private *i915) +{ + mutex_destroy(&i915->sbi_lock); +} |