cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

nouveau_encoder.h (4360B)

      1/*
      2 * Copyright (C) 2008 Maarten Maathuis.
      3 * All Rights Reserved.
      4 *
      5 * Permission is hereby granted, free of charge, to any person obtaining
      6 * a copy of this software and associated documentation files (the
      7 * "Software"), to deal in the Software without restriction, including
      8 * without limitation the rights to use, copy, modify, merge, publish,
      9 * distribute, sublicense, and/or sell copies of the Software, and to
     10 * permit persons to whom the Software is furnished to do so, subject to
     11 * the following conditions:
     12 *
     13 * The above copyright notice and this permission notice (including the
     14 * next paragraph) shall be included in all copies or substantial
     15 * portions of the Software.
     16 *
     17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24 *
     25 */
     26
     27#ifndef __NOUVEAU_ENCODER_H__
     28#define __NOUVEAU_ENCODER_H__
     29
     30#include <subdev/bios/dcb.h>
     31
     32#include <drm/display/drm_dp_helper.h>
     33#include <drm/display/drm_dp_mst_helper.h>
     34#include <drm/drm_encoder_slave.h>
     35
     36#include "dispnv04/disp.h"
     37
     38struct nv50_head_atom;
     39struct nouveau_connector;
     40
     41#define NV_DPMS_CLEARED 0x80
     42
     43struct nvkm_i2c_port;
     44
     45struct nouveau_encoder {
     46	struct drm_encoder_slave base;
     47
     48	struct dcb_output *dcb;
     49	int or;
     50	int link;
     51
     52	struct i2c_adapter *i2c;
     53	struct nvkm_i2c_aux *aux;
     54
     55	/* different to drm_encoder.crtc, this reflects what's
     56	 * actually programmed on the hw, not the proposed crtc */
     57	struct drm_crtc *crtc;
     58	u32 ctrl;
     59
     60	/* Protected by nouveau_drm.audio.lock */
     61	struct {
     62		bool enabled;
     63		struct drm_connector *connector;
     64	} audio;
     65
     66	struct drm_display_mode mode;
     67	int last_dpms;
     68
     69	struct nv04_output_reg restore;
     70
     71	union {
     72		struct {
     73			struct nv50_mstm *mstm;
     74			int link_nr;
     75			int link_bw;
     76
     77			/* Protects DP state that needs to be accessed outside
     78			 * connector reprobing contexts
     79			 */
     80			struct mutex hpd_irq_lock;
     81
     82			u8 dpcd[DP_RECEIVER_CAP_SIZE];
     83			u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
     84			struct drm_dp_desc desc;
     85
     86			u8 sink_count;
     87		} dp;
     88	};
     89
     90	struct {
     91		bool dp_interlace : 1;
     92	} caps;
     93
     94	void (*enc_save)(struct drm_encoder *encoder);
     95	void (*enc_restore)(struct drm_encoder *encoder);
     96	void (*update)(struct nouveau_encoder *, u8 head,
     97		       struct nv50_head_atom *, u8 proto, u8 depth);
     98};
     99
    100struct nv50_mstm {
    101	struct nouveau_encoder *outp;
    102
    103	struct drm_dp_mst_topology_mgr mgr;
    104
    105	/* Protected under nouveau_encoder->dp.hpd_irq_lock */
    106	bool can_mst;
    107	bool is_mst;
    108	bool suspended;
    109
    110	bool modified;
    111	bool disabled;
    112	int links;
    113};
    114
    115struct nouveau_encoder *
    116find_encoder(struct drm_connector *connector, int type);
    117
    118static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
    119{
    120	struct drm_encoder_slave *slave = to_encoder_slave(enc);
    121
    122	return container_of(slave, struct nouveau_encoder, base);
    123}
    124
    125static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
    126{
    127	return &enc->base.base;
    128}
    129
    130static inline const struct drm_encoder_slave_funcs *
    131get_slave_funcs(struct drm_encoder *enc)
    132{
    133	return to_encoder_slave(enc)->slave_funcs;
    134}
    135
    136/* nouveau_dp.c */
    137enum nouveau_dp_status {
    138	NOUVEAU_DP_NONE,
    139	NOUVEAU_DP_SST,
    140	NOUVEAU_DP_MST,
    141};
    142
    143int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
    144void nouveau_dp_irq(struct nouveau_drm *drm,
    145		    struct nouveau_connector *nv_connector);
    146enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
    147					struct nouveau_encoder *,
    148					const struct drm_display_mode *,
    149					unsigned *clock);
    150
    151struct nouveau_connector *
    152nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
    153struct nouveau_connector *
    154nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
    155
    156int nv50_mstm_detect(struct nouveau_encoder *encoder);
    157void nv50_mstm_remove(struct nv50_mstm *mstm);
    158bool nv50_mstm_service(struct nouveau_drm *drm,
    159		       struct nouveau_connector *nv_connector,
    160		       struct nv50_mstm *mstm);
    161#endif /* __NOUVEAU_ENCODER_H__ */