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25 #ifndef _INTEL_DPLL_MGR_H_
26 #define _INTEL_DPLL_MGR_H_
28 #include <linux/types.h>
30 #include "intel_display_power.h"
31 #include "intel_wakeref.h"
33 #define for_each_shared_dpll(__i915, __pll, __i) \
34 for ((__i) = 0; (__i) < (__i915)->display.dpll.num_shared_dpll && \
35 ((__pll) = &(__i915)->display.dpll.shared_dplls[(__i)]) ; (__i)++)
38 struct drm_i915_private;
40 struct intel_atomic_state;
42 struct intel_crtc_state;
44 struct intel_shared_dpll;
45 struct intel_shared_dpll_funcs;
48 * enum intel_dpll_id - possible DPLL ids
50 * Enumeration of possible IDs for a DPLL. Real shared dpll ids must be >= 0.
54 * @DPLL_ID_PRIVATE: non-shared dpll in use
59 * @DPLL_ID_PCH_PLL_A: DPLL A in ILK, SNB and IVB
61 DPLL_ID_PCH_PLL_A = 0,
63 * @DPLL_ID_PCH_PLL_B: DPLL B in ILK, SNB and IVB
65 DPLL_ID_PCH_PLL_B = 1,
69 * @DPLL_ID_WRPLL1: HSW and BDW WRPLL1
73 * @DPLL_ID_WRPLL2: HSW and BDW WRPLL2
77 * @DPLL_ID_SPLL: HSW and BDW SPLL
81 * @DPLL_ID_LCPLL_810: HSW and BDW 0.81 GHz LCPLL
83 DPLL_ID_LCPLL_810 = 3,
85 * @DPLL_ID_LCPLL_1350: HSW and BDW 1.35 GHz LCPLL
87 DPLL_ID_LCPLL_1350 = 4,
89 * @DPLL_ID_LCPLL_2700: HSW and BDW 2.7 GHz LCPLL
91 DPLL_ID_LCPLL_2700 = 5,
95 * @DPLL_ID_SKL_DPLL0: SKL and later DPLL0
97 DPLL_ID_SKL_DPLL0 = 0,
99 * @DPLL_ID_SKL_DPLL1: SKL and later DPLL1
101 DPLL_ID_SKL_DPLL1 = 1,
103 * @DPLL_ID_SKL_DPLL2: SKL and later DPLL2
105 DPLL_ID_SKL_DPLL2 = 2,
107 * @DPLL_ID_SKL_DPLL3: SKL and later DPLL3
109 DPLL_ID_SKL_DPLL3 = 3,
113 * @DPLL_ID_ICL_DPLL0: ICL/TGL combo PHY DPLL0
115 DPLL_ID_ICL_DPLL0 = 0,
117 * @DPLL_ID_ICL_DPLL1: ICL/TGL combo PHY DPLL1
119 DPLL_ID_ICL_DPLL1 = 1,
121 * @DPLL_ID_EHL_DPLL4: EHL combo PHY DPLL4
123 DPLL_ID_EHL_DPLL4 = 2,
125 * @DPLL_ID_ICL_TBTPLL: ICL/TGL TBT PLL
127 DPLL_ID_ICL_TBTPLL = 2,
129 * @DPLL_ID_ICL_MGPLL1: ICL MG PLL 1 port 1 (C),
130 * TGL TC PLL 1 port 1 (TC1)
132 DPLL_ID_ICL_MGPLL1 = 3,
134 * @DPLL_ID_ICL_MGPLL2: ICL MG PLL 1 port 2 (D)
135 * TGL TC PLL 1 port 2 (TC2)
137 DPLL_ID_ICL_MGPLL2 = 4,
139 * @DPLL_ID_ICL_MGPLL3: ICL MG PLL 1 port 3 (E)
140 * TGL TC PLL 1 port 3 (TC3)
142 DPLL_ID_ICL_MGPLL3 = 5,
144 * @DPLL_ID_ICL_MGPLL4: ICL MG PLL 1 port 4 (F)
145 * TGL TC PLL 1 port 4 (TC4)
147 DPLL_ID_ICL_MGPLL4 = 6,
149 * @DPLL_ID_TGL_MGPLL5: TGL TC PLL port 5 (TC5)
151 DPLL_ID_TGL_MGPLL5 = 7,
153 * @DPLL_ID_TGL_MGPLL6: TGL TC PLL port 6 (TC6)
155 DPLL_ID_TGL_MGPLL6 = 8,
158 * @DPLL_ID_DG1_DPLL0: DG1 combo PHY DPLL0
160 DPLL_ID_DG1_DPLL0 = 0,
162 * @DPLL_ID_DG1_DPLL1: DG1 combo PHY DPLL1
164 DPLL_ID_DG1_DPLL1 = 1,
166 * @DPLL_ID_DG1_DPLL2: DG1 combo PHY DPLL2
168 DPLL_ID_DG1_DPLL2 = 2,
170 * @DPLL_ID_DG1_DPLL3: DG1 combo PHY DPLL3
172 DPLL_ID_DG1_DPLL3 = 3,
175 #define I915_NUM_PLLS 9
177 enum icl_port_dpll_id {
178 ICL_PORT_DPLL_DEFAULT,
179 ICL_PORT_DPLL_MG_PHY,
184 struct i9xx_dpll_hw_state {
191 struct hsw_dpll_hw_state {
196 struct skl_dpll_hw_state {
198 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
199 * lower part of ctrl1 and they get shifted into position when writing
200 * the register. This allows us to easily compare the state to share
204 /* HDMI only, 0 when used for DP */
208 struct bxt_dpll_hw_state {
209 u32 ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10, pcsdw12;
212 struct icl_dpll_hw_state {
219 u32 mg_clktop2_coreclkctl1;
220 u32 mg_clktop2_hsclkctl;
224 u32 mg_pll_frac_lock;
227 u32 mg_pll_tdc_coldst_bias;
228 u32 mg_pll_bias_mask;
229 u32 mg_pll_tdc_coldst_bias_mask;
232 struct intel_mpllb_state {
233 u32 clock; /* in KHz */
244 struct intel_c10pll_state {
245 u32 clock; /* in KHz */
251 struct intel_c20pll_state {
252 u32 clock; /* in kHz */
261 struct intel_cx0pll_state {
263 struct intel_c10pll_state c10;
264 struct intel_c20pll_state c20;
269 struct intel_dpll_hw_state {
271 struct i9xx_dpll_hw_state i9xx;
272 struct hsw_dpll_hw_state hsw;
273 struct skl_dpll_hw_state skl;
274 struct bxt_dpll_hw_state bxt;
275 struct icl_dpll_hw_state icl;
276 struct intel_mpllb_state mpllb;
277 struct intel_cx0pll_state cx0pll;
282 * struct intel_shared_dpll_state - hold the DPLL atomic state
284 * This structure holds an atomic state for the DPLL, that can represent
285 * either its current state (in struct &intel_shared_dpll) or a desired
286 * future state which would be applied by an atomic mode set (stored in
287 * a struct &intel_atomic_state).
289 * See also intel_reserve_shared_dplls() and intel_release_shared_dplls().
291 struct intel_shared_dpll_state {
293 * @pipe_mask: mask of pipes using this DPLL, active or not
298 * @hw_state: hardware configuration for the DPLL stored in
299 * struct &intel_dpll_hw_state.
301 struct intel_dpll_hw_state hw_state;
305 * struct dpll_info - display PLL platform specific info
309 * @name: DPLL name; used for logging
314 * @funcs: platform specific hooks
316 const struct intel_shared_dpll_funcs *funcs;
319 * @id: unique indentifier for this DPLL
321 enum intel_dpll_id id;
324 * @power_domain: extra power domain required by the DPLL
326 enum intel_display_power_domain power_domain;
331 * Inform the state checker that the DPLL is kept enabled even if
332 * not in use by any CRTC.
339 * Inform the state checker that the DPLL can be used as a fallback
340 * (for TC->TBT fallback).
342 bool is_alt_port_dpll;
346 * struct intel_shared_dpll - display PLL with tracked state and users
348 struct intel_shared_dpll {
352 * Store the state for the pll, including its hw state
353 * and CRTCs using it.
355 struct intel_shared_dpll_state state;
358 * @index: index for atomic state
363 * @active_mask: mask of active pipes (i.e. DPMS on) using this DPLL
368 * @on: is the PLL actually active? Disabled during modeset
373 * @info: platform specific info
375 const struct dpll_info *info;
378 * @wakeref: In some platforms a device-level runtime pm reference may
379 * need to be grabbed to disable DC states while this DPLL is enabled
381 intel_wakeref_t wakeref;
389 /* shared dpll functions */
390 struct intel_shared_dpll *
391 intel_get_shared_dpll_by_id(struct drm_i915_private *i915,
392 enum intel_dpll_id id);
393 void assert_shared_dpll(struct drm_i915_private *i915,
394 struct intel_shared_dpll *pll,
396 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
397 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
398 int intel_compute_shared_dplls(struct intel_atomic_state *state,
399 struct intel_crtc *crtc,
400 struct intel_encoder *encoder);
401 int intel_reserve_shared_dplls(struct intel_atomic_state *state,
402 struct intel_crtc *crtc,
403 struct intel_encoder *encoder);
404 void intel_release_shared_dplls(struct intel_atomic_state *state,
405 struct intel_crtc *crtc);
406 void intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
407 const struct intel_shared_dpll *pll,
408 struct intel_shared_dpll_state *shared_dpll_state);
409 void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
410 enum icl_port_dpll_id port_dpll_id);
411 void intel_update_active_dpll(struct intel_atomic_state *state,
412 struct intel_crtc *crtc,
413 struct intel_encoder *encoder);
414 int intel_dpll_get_freq(struct drm_i915_private *i915,
415 const struct intel_shared_dpll *pll,
416 const struct intel_dpll_hw_state *dpll_hw_state);
417 bool intel_dpll_get_hw_state(struct drm_i915_private *i915,
418 struct intel_shared_dpll *pll,
419 struct intel_dpll_hw_state *dpll_hw_state);
420 void intel_enable_shared_dpll(const struct intel_crtc_state *crtc_state);
421 void intel_disable_shared_dpll(const struct intel_crtc_state *crtc_state);
422 void intel_shared_dpll_swap_state(struct intel_atomic_state *state);
423 void intel_shared_dpll_init(struct drm_i915_private *i915);
424 void intel_dpll_update_ref_clks(struct drm_i915_private *i915);
425 void intel_dpll_readout_hw_state(struct drm_i915_private *i915);
426 void intel_dpll_sanitize_state(struct drm_i915_private *i915);
428 void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
429 struct drm_printer *p,
430 const struct intel_dpll_hw_state *dpll_hw_state);
431 bool intel_dpll_compare_hw_state(struct drm_i915_private *i915,
432 const struct intel_dpll_hw_state *a,
433 const struct intel_dpll_hw_state *b);
434 enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port);
435 bool intel_dpll_is_combophy(enum intel_dpll_id id);
437 void intel_shared_dpll_state_verify(struct intel_atomic_state *state,
438 struct intel_crtc *crtc);
439 void intel_shared_dpll_verify_disabled(struct intel_atomic_state *state);
441 #endif /* _INTEL_DPLL_MGR_H_ */