98 	u32 fbc_ctl;  in i8xx_fbc_deactivate()  local
101 	fbc_ctl = I915_READ(FBC_CONTROL);  in i8xx_fbc_deactivate()
102 	if ((fbc_ctl & FBC_CTL_EN) == 0)  in i8xx_fbc_deactivate()
105 	fbc_ctl &= ~FBC_CTL_EN;  in i8xx_fbc_deactivate()
106 	I915_WRITE(FBC_CONTROL, fbc_ctl);  in i8xx_fbc_deactivate()
122 	u32 fbc_ctl;  in i8xx_fbc_activate()  local
150 	fbc_ctl = I915_READ(FBC_CONTROL);  in i8xx_fbc_activate()
151 	fbc_ctl &= 0x3fff << FBC_CTL_INTERVAL_SHIFT;  in i8xx_fbc_activate()
152 	fbc_ctl |= FBC_CTL_EN | FBC_CTL_PERIODIC;  in i8xx_fbc_activate()
154 		fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */  in i8xx_fbc_activate()
155 	fbc_ctl |= (cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;  in i8xx_fbc_activate()
156 	fbc_ctl |= params->vma->fence->id;  in i8xx_fbc_activate()
157 	I915_WRITE(FBC_CONTROL, fbc_ctl);  in i8xx_fbc_activate()