134 	u32 dpfc_ctl;  in g4x_fbc_enable()  local
138 	dpfc_ctl = DPFC_CTL_PLANE(intel_crtc->plane) | DPFC_SR_EN;  in g4x_fbc_enable()
140 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in g4x_fbc_enable()
142 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in g4x_fbc_enable()
143 	dpfc_ctl |= DPFC_CTL_FENCE_EN | obj->fence_reg;  in g4x_fbc_enable()
148 	I915_WRITE(DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in g4x_fbc_enable()
156 	u32 dpfc_ctl;  in g4x_fbc_disable()  local
161 	dpfc_ctl = I915_READ(DPFC_CONTROL);  in g4x_fbc_disable()
162 	if (dpfc_ctl & DPFC_CTL_EN) {  in g4x_fbc_disable()
163 		dpfc_ctl &= ~DPFC_CTL_EN;  in g4x_fbc_disable()
164 		I915_WRITE(DPFC_CONTROL, dpfc_ctl);  in g4x_fbc_disable()
190 	u32 dpfc_ctl;  in ilk_fbc_enable()  local
194 	dpfc_ctl = DPFC_CTL_PLANE(intel_crtc->plane);  in ilk_fbc_enable()
201 		dpfc_ctl |= DPFC_CTL_LIMIT_4X;  in ilk_fbc_enable()
204 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in ilk_fbc_enable()
207 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in ilk_fbc_enable()
210 	dpfc_ctl |= DPFC_CTL_FENCE_EN;  in ilk_fbc_enable()
212 		dpfc_ctl |= obj->fence_reg;  in ilk_fbc_enable()
217 	I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in ilk_fbc_enable()
233 	u32 dpfc_ctl;  in ilk_fbc_disable()  local
238 	dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);  in ilk_fbc_disable()
239 	if (dpfc_ctl & DPFC_CTL_EN) {  in ilk_fbc_disable()
240 		dpfc_ctl &= ~DPFC_CTL_EN;  in ilk_fbc_disable()
241 		I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);  in ilk_fbc_disable()
261 	u32 dpfc_ctl;  in gen7_fbc_enable()  local
265 	dpfc_ctl = IVB_DPFC_CTL_PLANE(intel_crtc->plane);  in gen7_fbc_enable()
272 		dpfc_ctl |= DPFC_CTL_LIMIT_4X;  in gen7_fbc_enable()
275 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in gen7_fbc_enable()
278 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in gen7_fbc_enable()
282 	dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;  in gen7_fbc_enable()
285 		dpfc_ctl |= FBC_CTL_FALSE_COLOR;  in gen7_fbc_enable()
287 	I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in gen7_fbc_enable()