cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gma_display.h (2821B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright © 2006-2011 Intel Corporation
      4 *
      5 * Authors:
      6 *	Eric Anholt <eric@anholt.net>
      7 *	Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
      8 */
      9
     10#ifndef _GMA_DISPLAY_H_
     11#define _GMA_DISPLAY_H_
     12
     13#include <linux/pm_runtime.h>
     14#include <drm/drm_vblank.h>
     15
     16struct drm_encoder;
     17struct drm_mode_set;
     18
     19struct gma_clock_t {
     20	/* given values */
     21	int n;
     22	int m1, m2;
     23	int p1, p2;
     24	/* derived values */
     25	int dot;
     26	int vco;
     27	int m;
     28	int p;
     29};
     30
     31struct gma_range_t {
     32	int min, max;
     33};
     34
     35struct gma_p2_t {
     36	int dot_limit;
     37	int p2_slow, p2_fast;
     38};
     39
     40struct gma_limit_t {
     41	struct gma_range_t dot, vco, n, m, m1, m2, p, p1;
     42	struct gma_p2_t p2;
     43	bool (*find_pll)(const struct gma_limit_t *, struct drm_crtc *,
     44			 int target, int refclk,
     45			 struct gma_clock_t *best_clock);
     46};
     47
     48struct gma_clock_funcs {
     49	void (*clock)(int refclk, struct gma_clock_t *clock);
     50	const struct gma_limit_t *(*limit)(struct drm_crtc *crtc, int refclk);
     51	bool (*pll_is_valid)(struct drm_crtc *crtc,
     52			     const struct gma_limit_t *limit,
     53			     struct gma_clock_t *clock);
     54};
     55
     56/* Common pipe related functions */
     57extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type);
     58extern void gma_wait_for_vblank(struct drm_device *dev);
     59extern int gma_pipe_set_base(struct drm_crtc *crtc, int x, int y,
     60			     struct drm_framebuffer *old_fb);
     61extern void gma_crtc_load_lut(struct drm_crtc *crtc);
     62extern void gma_crtc_dpms(struct drm_crtc *crtc, int mode);
     63extern void gma_crtc_prepare(struct drm_crtc *crtc);
     64extern void gma_crtc_commit(struct drm_crtc *crtc);
     65extern void gma_crtc_disable(struct drm_crtc *crtc);
     66extern void gma_crtc_destroy(struct drm_crtc *crtc);
     67extern int gma_crtc_page_flip(struct drm_crtc *crtc,
     68			      struct drm_framebuffer *fb,
     69			      struct drm_pending_vblank_event *event,
     70			      uint32_t page_flip_flags,
     71			      struct drm_modeset_acquire_ctx *ctx);
     72extern int gma_crtc_set_config(struct drm_mode_set *set,
     73			       struct drm_modeset_acquire_ctx *ctx);
     74
     75extern void gma_crtc_save(struct drm_crtc *crtc);
     76extern void gma_crtc_restore(struct drm_crtc *crtc);
     77
     78extern const struct drm_crtc_funcs gma_crtc_funcs;
     79
     80extern void gma_encoder_prepare(struct drm_encoder *encoder);
     81extern void gma_encoder_commit(struct drm_encoder *encoder);
     82extern void gma_encoder_destroy(struct drm_encoder *encoder);
     83
     84/* Common clock related functions */
     85extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk);
     86extern void gma_clock(int refclk, struct gma_clock_t *clock);
     87extern bool gma_pll_is_valid(struct drm_crtc *crtc,
     88			     const struct gma_limit_t *limit,
     89			     struct gma_clock_t *clock);
     90extern bool gma_find_best_pll(const struct gma_limit_t *limit,
     91			      struct drm_crtc *crtc, int target, int refclk,
     92			      struct gma_clock_t *best_clock);
     93#endif