/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**************************************************************************
*
* Copyright ( c ) 2009 - 2025 Broadcom . All Rights Reserved . The term
* “ Broadcom ” refers to Broadcom Inc . and / or its subsidiaries .
*
**************************************************************************/
#ifndef VMWGFX_KMS_H_
#define VMWGFX_KMS_H_
#include "vmwgfx_cursor_plane.h"
#include "vmwgfx_drv.h"
#include <drm/drm_encoder.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_probe_helper.h>
/**
* struct vmw_du_update_plane - Closure structure for vmw_du_helper_plane_update
* @ plane : Plane which is being updated .
* @ old_state : Old state of plane .
* @ dev_priv : Device private .
* @ du : Display unit on which to update the plane .
* @ vfb : Framebuffer which is blitted to display unit .
* @ out_fence : Out fence for resource finish .
* @ mutex : The mutex used to protect resource reservation .
* @ cpu_blit : True if need cpu blit .
* @ intr : Whether to perform waits interruptible if possible .
*
* This structure loosely represent the set of operations needed to perform a
* plane update on a display unit . Implementer will define that functionality
* according to the function callbacks for this structure . In brief it involves
* surface / buffer object validation , populate FIFO commands and command
* submission to the device .
*/
struct vmw_du_update_plane {
/**
* @ calc_fifo_size : Calculate fifo size .
*
* Determine fifo size for the commands needed for update . The number of
* damage clips on display unit @ num_hits will be passed to allocate
* sufficient fifo space .
*
* Return : Fifo size needed
*/
uint32_t (*calc_fifo_size)(struct vmw_du_update_plane *update,
uint32_t num_hits);
/**
* @ post_prepare : Populate fifo for resource preparation .
*
* Some surface resource or buffer object need some extra cmd submission
* like update GB image for proxy surface and define a GMRFB for screen
* object . That should be done here as this callback will be
* called after FIFO allocation with the address of command buufer .
*
* This callback is optional .
*
* Return : Size of commands populated to command buffer .
*/
uint32_t (*post_prepare)(struct vmw_du_update_plane *update, void *cmd);
/**
* @ pre_clip : Populate fifo before clip .
*
* This is where pre clip related command should be populated like
* surface copy / DMA , etc .
*
* This callback is optional .
*
* Return : Size of commands populated to command buffer .
*/
uint32_t (*pre_clip)(struct vmw_du_update_plane *update, void *cmd,
uint32_t num_hits);
/**
* @ clip : Populate fifo for clip .
*
* This is where to populate clips for surface copy / dma or blit commands
* if needed . This will be called times have damage in display unit ,
* which is one if doing full update . @ clip is the damage in destination
* coordinates which is crtc / DU and @ src_x , @ src_y is damage clip src in
* framebuffer coordinate .
*
* This callback is optional .
*
* Return : Size of commands populated to command buffer .
*/
uint32_t (*clip)(struct vmw_du_update_plane *update, void *cmd,
struct drm_rect *clip, uint32_t src_x, uint32_t src_y);
/**
* @ post_clip : Populate fifo after clip .
*
* This is where to populate display unit update commands or blit
* commands .
*
* Return : Size of commands populated to command buffer .
*/
uint32_t (*post_clip)(struct vmw_du_update_plane *update, void *cmd,
struct drm_rect *bb);
struct drm_plane *plane;
struct drm_plane_state *old_state;
struct vmw_private *dev_priv;
struct vmw_display_unit *du;
struct vmw_framebuffer *vfb;
struct vmw_fence_obj **out_fence;
struct mutex *mutex;
bool intr;
};
/**
* struct vmw_du_update_plane_surface - closure structure for surface
* @ base : base closure structure .
* @ cmd_start : FIFO command start address ( used by SOU only ) .
*/
struct vmw_du_update_plane_surface {
struct vmw_du_update_plane base;
/* This member is to handle special case SOU surface update */
void *cmd_start;
};
/**
* struct vmw_du_update_plane_buffer - Closure structure for buffer object
* @ base : Base closure structure .
* @ fb_left : x1 for fb damage bounding box .
* @ fb_top : y1 for fb damage bounding box .
*/
struct vmw_du_update_plane_buffer {
struct vmw_du_update_plane base;
int fb_left, fb_top;
};
/**
* struct vmw_kms_dirty - closure structure for the vmw_kms_helper_dirty
* function .
*
* @ fifo_commit : Callback that is called once for each display unit after
* all clip rects . This function must commit the fifo space reserved by the
* helper . Set up by the caller .
* @ clip : Callback that is called for each cliprect on each display unit .
* Set up by the caller .
* @ fifo_reserve_size : Fifo size that the helper should try to allocat for
* each display unit . Set up by the caller .
* @ dev_priv : Pointer to the device private . Set up by the helper .
* @ unit : The current display unit . Set up by the helper before a call to @ clip .
* @ cmd : The allocated fifo space . Set up by the helper before the first @ clip
* call .
* @ crtc : The crtc for which to build dirty commands .
* @ num_hits : Number of clip rect commands for this display unit .
* Cleared by the helper before the first @ clip call . Updated by the @ clip
* callback .
* @ fb_x : Clip rect left side in framebuffer coordinates .
* @ fb_y : Clip rect right side in framebuffer coordinates .
* @ unit_x1 : Clip rect left side in crtc coordinates .
* @ unit_y1 : Clip rect top side in crtc coordinates .
* @ unit_x2 : Clip rect right side in crtc coordinates .
* @ unit_y2 : Clip rect bottom side in crtc coordinates .
*
* The clip rect coordinates are updated by the helper for each @ clip call .
* Note that this may be derived from if more info needs to be passed between
* helper caller and helper callbacks .
*/
struct vmw_kms_dirty {
void (*fifo_commit)(struct vmw_kms_dirty *);
void (*clip)(struct vmw_kms_dirty *);
size_t fifo_reserve_size;
struct vmw_private *dev_priv;
struct vmw_display_unit *unit;
void *cmd;
struct drm_crtc *crtc;
u32 num_hits;
s32 fb_x;
s32 fb_y;
s32 unit_x1;
s32 unit_y1;
s32 unit_x2;
s32 unit_y2;
};
#define vmw_framebuffer_to_vfb(x) \
container_of(x, struct vmw_framebuffer, base)
#define vmw_framebuffer_to_vfbs(x) \
container_of(x, struct vmw_framebuffer_surface, base.base)
#define vmw_framebuffer_to_vfbd(x) \
container_of(x, struct vmw_framebuffer_bo, base.base)
/**
* Base class for framebuffers
*
* @ pin is called the when ever a crtc uses this framebuffer
* @ unpin is called
*/
struct vmw_framebuffer {
struct drm_framebuffer base;
bool bo;
};
struct vmw_framebuffer_surface {
struct vmw_framebuffer base;
struct vmw_user_object uo;
};
struct vmw_framebuffer_bo {
struct vmw_framebuffer base;
struct vmw_bo *buffer;
};
static const uint32_t __maybe_unused vmw_primary_plane_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_RGB565,
DRM_FORMAT_XRGB1555,
};
#define vmw_crtc_state_to_vcs(x) container_of(x, struct vmw_crtc_state, base)
#define vmw_plane_state_to_vps(x) container_of(x, struct vmw_plane_state, base)
#define vmw_connector_state_to_vcs(x) \
container_of(x, struct vmw_connector_state, base)
/**
* Derived class for crtc state object
*
* @ base DRM crtc object
*/
struct vmw_crtc_state {
struct drm_crtc_state base;
};
/**
* Derived class for plane state object
*
* @ base DRM plane object
* @ surf Display surface for STDU
* @ bo display bo for SOU
* @ content_fb_type Used by STDU .
* @ bo_size Size of the bo , used by Screen Object Display Unit
* @ pinned pin count for STDU display surface
*/
struct vmw_plane_state {
struct drm_plane_state base;
struct vmw_user_object uo;
int content_fb_type;
unsigned long bo_size;
int pinned;
/* For CPU Blit */
unsigned int cpp;
struct vmw_cursor_plane_state cursor;
};
/**
* Derived class for connector state object
*
* @ base DRM connector object
* @ is_implicit connector property
*
*/
struct vmw_connector_state {
struct drm_connector_state base;
/**
* @ gui_x :
*
* vmwgfx connector property representing the x position of this display
* unit ( connector is synonymous to display unit ) in overall topology .
* This is what the device expect as xRoot while creating screen .
*/
int gui_x;
/**
* @ gui_y :
*
* vmwgfx connector property representing the y position of this display
* unit ( connector is synonymous to display unit ) in overall topology .
* This is what the device expect as yRoot while creating screen .
*/
int gui_y;
};
/**
* Base class display unit .
*
* Since the SVGA hw doesn ' t have a concept of a crtc , encoder or connector
* so the display unit is all of them at the same time . This is true for both
* legacy multimon and screen objects .
*/
struct vmw_display_unit {
struct drm_crtc crtc;
struct drm_encoder encoder;
struct drm_connector connector;
struct drm_plane primary;
struct vmw_cursor_plane cursor;
unsigned unit;
/*
* Prefered mode tracking .
*/
unsigned pref_width;
unsigned pref_height;
bool pref_active;
/*
* Gui positioning
*/
int gui_x;
int gui_y;
bool is_implicit;
int set_gui_x;
int set_gui_y;
struct {
struct work_struct crc_generator_work;
struct hrtimer timer;
ktime_t period_ns;
/* protects concurrent access to the vblank handler */
atomic_t atomic_lock;
/* protected by @atomic_lock */
bool crc_enabled;
struct vmw_surface *surface;
/* protects concurrent access to the crc worker */
spinlock_t crc_state_lock;
/* protected by @crc_state_lock */
bool crc_pending;
u64 frame_start;
u64 frame_end;
} vkms;
};
#define vmw_crtc_to_du(x) \
container_of(x, struct vmw_display_unit, crtc)
#define vmw_connector_to_du(x) \
container_of(x, struct vmw_display_unit, connector)
/*
* Shared display unit functions - vmwgfx_kms . c
*/
void vmw_du_init(struct vmw_display_unit *du);
void vmw_du_cleanup(struct vmw_display_unit *du);
int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
u16 *r, u16 *g, u16 *b,
uint32_t size,
struct drm_modeset_acquire_ctx *ctx);
int vmw_du_connector_set_property(struct drm_connector *connector,
struct drm_property *property,
uint64_t val);
int vmw_du_connector_atomic_set_property(struct drm_connector *connector,
struct drm_connector_state *state,
struct drm_property *property,
uint64_t val);
int
vmw_du_connector_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val);
int vmw_du_connector_dpms(struct drm_connector *connector, int mode);
void vmw_du_connector_save(struct drm_connector *connector);
void vmw_du_connector_restore(struct drm_connector *connector);
enum drm_connector_status
vmw_du_connector_detect(struct drm_connector *connector, bool force);
int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
const struct drm_clip_rect *clips,
const struct drm_vmw_rect *vclips,
s32 dest_x, s32 dest_y,
int num_clips,
int increment,
struct vmw_kms_dirty *dirty);
enum drm_mode_status vmw_connector_mode_valid(struct drm_connector *connector,
const struct drm_display_mode *mode);
int vmw_connector_get_modes(struct drm_connector *connector);
void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_validation_context *ctx,
struct vmw_fence_obj **out_fence,
struct drm_vmw_fence_rep __user *
user_fence_rep);
int vmw_kms_readback(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *vfb,
struct drm_vmw_fence_rep __user *user_fence_rep,
struct drm_vmw_rect *vclips,
uint32_t num_clips);
struct vmw_framebuffer *
vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
struct vmw_user_object *uo,
const struct drm_format_info *info,
const struct drm_mode_fb_cmd2 *mode_cmd);
void vmw_guess_mode_timing(struct drm_display_mode *mode);
void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv);
void vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv);
/* Universal Plane Helpers */
void vmw_du_primary_plane_destroy(struct drm_plane *plane);
/* Atomic Helpers */
int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state);
void vmw_du_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state);
void vmw_du_plane_reset(struct drm_plane *plane);
struct drm_plane_state *vmw_du_plane_duplicate_state(struct drm_plane *plane);
void vmw_du_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state);
void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps);
int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_atomic_state *state);
void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_atomic_state *state);
void vmw_du_crtc_reset(struct drm_crtc *crtc);
struct drm_crtc_state *vmw_du_crtc_duplicate_state(struct drm_crtc *crtc);
void vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state);
void vmw_du_connector_reset(struct drm_connector *connector);
struct drm_connector_state *
vmw_du_connector_duplicate_state(struct drm_connector *connector);
void vmw_du_connector_destroy_state(struct drm_connector *connector,
struct drm_connector_state *state);
/*
* Legacy display unit functions - vmwgfx_ldu . c
*/
int vmw_kms_ldu_init_display(struct vmw_private *dev_priv);
int vmw_kms_ldu_close_display(struct vmw_private *dev_priv);
int vmw_kms_update_proxy(struct vmw_resource *res,
const struct drm_clip_rect *clips,
unsigned num_clips,
int increment);
/*
* Screen Objects display functions - vmwgfx_scrn . c
*/
int vmw_kms_sou_init_display(struct vmw_private *dev_priv);
int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
struct vmw_resource *srf,
s32 dest_x,
s32 dest_y,
unsigned num_clips, int inc,
struct vmw_fence_obj **out_fence,
struct drm_crtc *crtc);
int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
unsigned int num_clips, int increment,
bool interruptible,
struct vmw_fence_obj **out_fence,
struct drm_crtc *crtc);
int vmw_kms_sou_readback(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *vfb,
struct drm_vmw_fence_rep __user *user_fence_rep,
struct drm_vmw_rect *vclips,
uint32_t num_clips,
struct drm_crtc *crtc);
/*
* Screen Target Display Unit functions - vmwgfx_stdu . c
*/
int vmw_kms_stdu_init_display(struct vmw_private *dev_priv);
int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
struct vmw_resource *srf,
s32 dest_x,
s32 dest_y,
unsigned num_clips, int inc,
struct vmw_fence_obj **out_fence,
struct drm_crtc *crtc);
int vmw_kms_stdu_readback(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *vfb,
struct drm_vmw_fence_rep __user *user_fence_rep,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
uint32_t num_clips,
int increment,
struct drm_crtc *crtc);
int vmw_du_helper_plane_update(struct vmw_du_update_plane *update);
/**
* vmw_du_translate_to_crtc - Translate a rect from framebuffer to crtc
* @ state : Plane state .
* @ r : Rectangle to translate .
*/
static inline void vmw_du_translate_to_crtc(struct drm_plane_state *state,
struct drm_rect *r)
{
int translate_crtc_x = -((state->src_x >> 16 ) - state->crtc_x);
int translate_crtc_y = -((state->src_y >> 16 ) - state->crtc_y);
drm_rect_translate(r, translate_crtc_x, translate_crtc_y);
}
#endif
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