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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sti_plane.h (2032B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (C) STMicroelectronics SA 2014
      4 * Author: Benjamin Gaignard <benjamin.gaignard@st.com> for STMicroelectronics.
      5 */
      6
      7#ifndef _STI_PLANE_H_
      8#define _STI_PLANE_H_
      9
     10#include <drm/drm_atomic_helper.h>
     11#include <drm/drm_plane_helper.h>
     12
     13#define to_sti_plane(x) container_of(x, struct sti_plane, drm_plane)
     14
     15#define STI_PLANE_TYPE_SHIFT 8
     16#define STI_PLANE_TYPE_MASK (~((1 << STI_PLANE_TYPE_SHIFT) - 1))
     17
     18enum sti_plane_type {
     19	STI_GDP = 1 << STI_PLANE_TYPE_SHIFT,
     20	STI_VDP = 2 << STI_PLANE_TYPE_SHIFT,
     21	STI_CUR = 3 << STI_PLANE_TYPE_SHIFT,
     22	STI_BCK = 4 << STI_PLANE_TYPE_SHIFT
     23};
     24
     25enum sti_plane_id_of_type {
     26	STI_ID_0 = 0,
     27	STI_ID_1 = 1,
     28	STI_ID_2 = 2,
     29	STI_ID_3 = 3
     30};
     31
     32enum sti_plane_desc {
     33	STI_GDP_0       = STI_GDP | STI_ID_0,
     34	STI_GDP_1       = STI_GDP | STI_ID_1,
     35	STI_GDP_2       = STI_GDP | STI_ID_2,
     36	STI_GDP_3       = STI_GDP | STI_ID_3,
     37	STI_HQVDP_0     = STI_VDP | STI_ID_0,
     38	STI_CURSOR      = STI_CUR,
     39	STI_BACK        = STI_BCK
     40};
     41
     42enum sti_plane_status {
     43	STI_PLANE_READY,
     44	STI_PLANE_UPDATED,
     45	STI_PLANE_DISABLING,
     46	STI_PLANE_FLUSHING,
     47	STI_PLANE_DISABLED,
     48};
     49
     50#define FPS_LENGTH 128
     51struct sti_fps_info {
     52	bool output;
     53	unsigned int curr_frame_counter;
     54	unsigned int last_frame_counter;
     55	unsigned int curr_field_counter;
     56	unsigned int last_field_counter;
     57	ktime_t	     last_timestamp;
     58	char fps_str[FPS_LENGTH];
     59	char fips_str[FPS_LENGTH];
     60};
     61
     62/**
     63 * STI plane structure
     64 *
     65 * @plane:              drm plane it is bound to (if any)
     66 * @desc:               plane type & id
     67 * @status:             to know the status of the plane
     68 * @fps_info:           frame per second info
     69 */
     70struct sti_plane {
     71	struct drm_plane drm_plane;
     72	enum sti_plane_desc desc;
     73	enum sti_plane_status status;
     74	struct sti_fps_info fps_info;
     75};
     76
     77const char *sti_plane_to_str(struct sti_plane *plane);
     78void sti_plane_update_fps(struct sti_plane *plane,
     79			  bool new_frame,
     80			  bool new_field);
     81
     82void sti_plane_init_property(struct sti_plane *plane,
     83			     enum drm_plane_type type);
     84#endif