145 	u32 dpfc_ctl;  in g4x_fbc_enable()  local
149 	dpfc_ctl = DPFC_CTL_PLANE(crtc->plane) | DPFC_SR_EN;  in g4x_fbc_enable()
151 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in g4x_fbc_enable()
153 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in g4x_fbc_enable()
154 	dpfc_ctl |= DPFC_CTL_FENCE_EN | obj->fence_reg;  in g4x_fbc_enable()
159 	I915_WRITE(DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in g4x_fbc_enable()
166 	u32 dpfc_ctl;  in g4x_fbc_disable()  local
171 	dpfc_ctl = I915_READ(DPFC_CONTROL);  in g4x_fbc_disable()
172 	if (dpfc_ctl & DPFC_CTL_EN) {  in g4x_fbc_disable()
173 		dpfc_ctl &= ~DPFC_CTL_EN;  in g4x_fbc_disable()
174 		I915_WRITE(DPFC_CONTROL, dpfc_ctl);  in g4x_fbc_disable()
196 	u32 dpfc_ctl;  in ilk_fbc_enable()  local
202 	dpfc_ctl = DPFC_CTL_PLANE(crtc->plane);  in ilk_fbc_enable()
209 		dpfc_ctl |= DPFC_CTL_LIMIT_4X;  in ilk_fbc_enable()
212 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in ilk_fbc_enable()
215 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in ilk_fbc_enable()
218 	dpfc_ctl |= DPFC_CTL_FENCE_EN;  in ilk_fbc_enable()
220 		dpfc_ctl |= obj->fence_reg;  in ilk_fbc_enable()
226 	I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in ilk_fbc_enable()
241 	u32 dpfc_ctl;  in ilk_fbc_disable()  local
246 	dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);  in ilk_fbc_disable()
247 	if (dpfc_ctl & DPFC_CTL_EN) {  in ilk_fbc_disable()
248 		dpfc_ctl &= ~DPFC_CTL_EN;  in ilk_fbc_disable()
249 		I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);  in ilk_fbc_disable()
265 	u32 dpfc_ctl;  in gen7_fbc_enable()  local
270 	dpfc_ctl = 0;  in gen7_fbc_enable()
272 		dpfc_ctl |= IVB_DPFC_CTL_PLANE(crtc->plane);  in gen7_fbc_enable()
280 		dpfc_ctl |= DPFC_CTL_LIMIT_4X;  in gen7_fbc_enable()
283 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;  in gen7_fbc_enable()
286 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;  in gen7_fbc_enable()
290 	dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;  in gen7_fbc_enable()
293 		dpfc_ctl |= FBC_CTL_FALSE_COLOR;  in gen7_fbc_enable()
307 	I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);  in gen7_fbc_enable()