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25 #ifndef _INTEL_DPLL_MGR_H_
26 #define _INTEL_DPLL_MGR_H_
28 #include <linux/types.h>
30 #include "intel_wakeref.h"
32 #define for_each_shared_dpll(__i915, __pll, __i) \
33 for ((__i) = 0; (__i) < (__i915)->display.dpll.num_shared_dpll && \
34 ((__pll) = &(__i915)->display.dpll.shared_dplls[(__i)]) ; (__i)++)
37 struct drm_i915_private;
38 struct intel_atomic_state;
40 struct intel_crtc_state;
42 struct intel_shared_dpll;
43 struct intel_shared_dpll_funcs;
46 * enum intel_dpll_id - possible DPLL ids
48 * Enumeration of possible IDs for a DPLL. Real shared dpll ids must be >= 0.
52 * @DPLL_ID_PRIVATE: non-shared dpll in use
57 * @DPLL_ID_PCH_PLL_A: DPLL A in ILK, SNB and IVB
59 DPLL_ID_PCH_PLL_A = 0,
61 * @DPLL_ID_PCH_PLL_B: DPLL B in ILK, SNB and IVB
63 DPLL_ID_PCH_PLL_B = 1,
67 * @DPLL_ID_WRPLL1: HSW and BDW WRPLL1
71 * @DPLL_ID_WRPLL2: HSW and BDW WRPLL2
75 * @DPLL_ID_SPLL: HSW and BDW SPLL
79 * @DPLL_ID_LCPLL_810: HSW and BDW 0.81 GHz LCPLL
81 DPLL_ID_LCPLL_810 = 3,
83 * @DPLL_ID_LCPLL_1350: HSW and BDW 1.35 GHz LCPLL
85 DPLL_ID_LCPLL_1350 = 4,
87 * @DPLL_ID_LCPLL_2700: HSW and BDW 2.7 GHz LCPLL
89 DPLL_ID_LCPLL_2700 = 5,
93 * @DPLL_ID_SKL_DPLL0: SKL and later DPLL0
95 DPLL_ID_SKL_DPLL0 = 0,
97 * @DPLL_ID_SKL_DPLL1: SKL and later DPLL1
99 DPLL_ID_SKL_DPLL1 = 1,
101 * @DPLL_ID_SKL_DPLL2: SKL and later DPLL2
103 DPLL_ID_SKL_DPLL2 = 2,
105 * @DPLL_ID_SKL_DPLL3: SKL and later DPLL3
107 DPLL_ID_SKL_DPLL3 = 3,
111 * @DPLL_ID_ICL_DPLL0: ICL/TGL combo PHY DPLL0
113 DPLL_ID_ICL_DPLL0 = 0,
115 * @DPLL_ID_ICL_DPLL1: ICL/TGL combo PHY DPLL1
117 DPLL_ID_ICL_DPLL1 = 1,
119 * @DPLL_ID_EHL_DPLL4: EHL combo PHY DPLL4
121 DPLL_ID_EHL_DPLL4 = 2,
123 * @DPLL_ID_ICL_TBTPLL: ICL/TGL TBT PLL
125 DPLL_ID_ICL_TBTPLL = 2,
127 * @DPLL_ID_ICL_MGPLL1: ICL MG PLL 1 port 1 (C),
128 * TGL TC PLL 1 port 1 (TC1)
130 DPLL_ID_ICL_MGPLL1 = 3,
132 * @DPLL_ID_ICL_MGPLL2: ICL MG PLL 1 port 2 (D)
133 * TGL TC PLL 1 port 2 (TC2)
135 DPLL_ID_ICL_MGPLL2 = 4,
137 * @DPLL_ID_ICL_MGPLL3: ICL MG PLL 1 port 3 (E)
138 * TGL TC PLL 1 port 3 (TC3)
140 DPLL_ID_ICL_MGPLL3 = 5,
142 * @DPLL_ID_ICL_MGPLL4: ICL MG PLL 1 port 4 (F)
143 * TGL TC PLL 1 port 4 (TC4)
145 DPLL_ID_ICL_MGPLL4 = 6,
147 * @DPLL_ID_TGL_MGPLL5: TGL TC PLL port 5 (TC5)
149 DPLL_ID_TGL_MGPLL5 = 7,
151 * @DPLL_ID_TGL_MGPLL6: TGL TC PLL port 6 (TC6)
153 DPLL_ID_TGL_MGPLL6 = 8,
156 * @DPLL_ID_DG1_DPLL0: DG1 combo PHY DPLL0
158 DPLL_ID_DG1_DPLL0 = 0,
160 * @DPLL_ID_DG1_DPLL1: DG1 combo PHY DPLL1
162 DPLL_ID_DG1_DPLL1 = 1,
164 * @DPLL_ID_DG1_DPLL2: DG1 combo PHY DPLL2
166 DPLL_ID_DG1_DPLL2 = 2,
168 * @DPLL_ID_DG1_DPLL3: DG1 combo PHY DPLL3
170 DPLL_ID_DG1_DPLL3 = 3,
173 #define I915_NUM_PLLS 9
175 enum icl_port_dpll_id {
176 ICL_PORT_DPLL_DEFAULT,
177 ICL_PORT_DPLL_MG_PHY,
182 struct intel_dpll_hw_state {
195 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
196 * lower part of ctrl1 and they get shifted into position when writing
197 * the register. This allows us to easily compare the state to share
201 /* HDMI only, 0 when used for DP */
211 u32 ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10, pcsdw12;
214 * ICL uses the following, already defined:
215 * u32 cfgcr0, cfgcr1;
218 u32 mg_clktop2_coreclkctl1;
219 u32 mg_clktop2_hsclkctl;
223 u32 mg_pll_frac_lock;
226 u32 mg_pll_tdc_coldst_bias;
227 u32 mg_pll_bias_mask;
228 u32 mg_pll_tdc_coldst_bias_mask;
232 * struct intel_shared_dpll_state - hold the DPLL atomic state
234 * This structure holds an atomic state for the DPLL, that can represent
235 * either its current state (in struct &intel_shared_dpll) or a desired
236 * future state which would be applied by an atomic mode set (stored in
237 * a struct &intel_atomic_state).
239 * See also intel_reserve_shared_dplls() and intel_release_shared_dplls().
241 struct intel_shared_dpll_state {
243 * @pipe_mask: mask of pipes using this DPLL, active or not
248 * @hw_state: hardware configuration for the DPLL stored in
249 * struct &intel_dpll_hw_state.
251 struct intel_dpll_hw_state hw_state;
255 * struct dpll_info - display PLL platform specific info
259 * @name: DPLL name; used for logging
264 * @funcs: platform specific hooks
266 const struct intel_shared_dpll_funcs *funcs;
269 * @id: unique indentifier for this DPLL
271 enum intel_dpll_id id;
273 #define INTEL_DPLL_ALWAYS_ON (1 << 0)
277 * INTEL_DPLL_ALWAYS_ON
278 * Inform the state checker that the DPLL is kept enabled even if
279 * not in use by any CRTC.
285 * struct intel_shared_dpll - display PLL with tracked state and users
287 struct intel_shared_dpll {
291 * Store the state for the pll, including its hw state
292 * and CRTCs using it.
294 struct intel_shared_dpll_state state;
297 * @index: index for atomic state
302 * @active_mask: mask of active pipes (i.e. DPMS on) using this DPLL
307 * @on: is the PLL actually active? Disabled during modeset
312 * @info: platform specific info
314 const struct dpll_info *info;
317 * @wakeref: In some platforms a device-level runtime pm reference may
318 * need to be grabbed to disable DC states while this DPLL is enabled
320 intel_wakeref_t wakeref;
328 /* shared dpll functions */
329 struct intel_shared_dpll *
330 intel_get_shared_dpll_by_id(struct drm_i915_private *i915,
331 enum intel_dpll_id id);
332 void assert_shared_dpll(struct drm_i915_private *i915,
333 struct intel_shared_dpll *pll,
335 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
336 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
337 int intel_compute_shared_dplls(struct intel_atomic_state *state,
338 struct intel_crtc *crtc,
339 struct intel_encoder *encoder);
340 int intel_reserve_shared_dplls(struct intel_atomic_state *state,
341 struct intel_crtc *crtc,
342 struct intel_encoder *encoder);
343 void intel_release_shared_dplls(struct intel_atomic_state *state,
344 struct intel_crtc *crtc);
345 void intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
346 const struct intel_shared_dpll *pll,
347 struct intel_shared_dpll_state *shared_dpll_state);
348 void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
349 enum icl_port_dpll_id port_dpll_id);
350 void intel_update_active_dpll(struct intel_atomic_state *state,
351 struct intel_crtc *crtc,
352 struct intel_encoder *encoder);
353 int intel_dpll_get_freq(struct drm_i915_private *i915,
354 const struct intel_shared_dpll *pll,
355 const struct intel_dpll_hw_state *pll_state);
356 bool intel_dpll_get_hw_state(struct drm_i915_private *i915,
357 struct intel_shared_dpll *pll,
358 struct intel_dpll_hw_state *hw_state);
359 void intel_enable_shared_dpll(const struct intel_crtc_state *crtc_state);
360 void intel_disable_shared_dpll(const struct intel_crtc_state *crtc_state);
361 void intel_shared_dpll_swap_state(struct intel_atomic_state *state);
362 void intel_shared_dpll_init(struct drm_i915_private *i915);
363 void intel_dpll_update_ref_clks(struct drm_i915_private *i915);
364 void intel_dpll_readout_hw_state(struct drm_i915_private *i915);
365 void intel_dpll_sanitize_state(struct drm_i915_private *i915);
367 void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
368 const struct intel_dpll_hw_state *hw_state);
369 enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port);
370 bool intel_dpll_is_combophy(enum intel_dpll_id id);
372 void intel_shared_dpll_state_verify(struct intel_atomic_state *state,
373 struct intel_crtc *crtc);
374 void intel_shared_dpll_verify_disabled(struct intel_atomic_state *state);
376 #endif /* _INTEL_DPLL_MGR_H_ */