13 static int intel_sbi_rw(struct drm_i915_private *i915, u16 reg,  in intel_sbi_rw()  argument
17 	struct intel_uncore *uncore = &i915->uncore;  in intel_sbi_rw()
20 	lockdep_assert_held(&i915->sbi_lock);  in intel_sbi_rw()
25 		drm_err(&i915->drm,  in intel_sbi_rw()
44 		drm_err(&i915->drm,  in intel_sbi_rw()
50 		drm_err(&i915->drm, "error during SBI read of reg %x\n", reg);  in intel_sbi_rw()
60 void intel_sbi_lock(struct drm_i915_private *i915)  in intel_sbi_lock()  argument
62 	mutex_lock(&i915->sbi_lock);  in intel_sbi_lock()
65 void intel_sbi_unlock(struct drm_i915_private *i915)  in intel_sbi_unlock()  argument
67 	mutex_unlock(&i915->sbi_lock);  in intel_sbi_unlock()
70 u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg,  in intel_sbi_read()  argument
75 	intel_sbi_rw(i915, reg, destination, &result, true);  in intel_sbi_read()
80 void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value,  in intel_sbi_write()  argument
83 	intel_sbi_rw(i915, reg, destination, &value, false);  in intel_sbi_write()
86 void intel_sbi_init(struct drm_i915_private *i915)  in intel_sbi_init()  argument
88 	mutex_init(&i915->sbi_lock);  in intel_sbi_init()
91 void intel_sbi_fini(struct drm_i915_private *i915)  in intel_sbi_fini()  argument
93 	mutex_destroy(&i915->sbi_lock);  in intel_sbi_fini()