Files
linux/drivers/gpu/drm/vmwgfx/vmwgfx_cursor_plane.h
Ian Forbes eef295a850 drm/vmwgfx: Restore Guest-Backed only cursor plane support
The referenced fixes commit broke the cursor plane for configurations
which have Guest-Backed surfaces but no cursor MOB support.

Fixes: 965544150d ("drm/vmwgfx: Refactor cursor handling")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patch.msgid.link/20251103201920.381503-1-ian.forbes@broadcom.com
2025-11-07 00:01:15 -05:00

83 lines
2.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**************************************************************************
*
* Copyright (c) 2024-2025 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*
**************************************************************************/
#ifndef VMWGFX_CURSOR_PLANE_H
#define VMWGFX_CURSOR_PLANE_H
#include "device_include/svga3d_cmd.h"
#include "drm/drm_file.h"
#include "drm/drm_fourcc.h"
#include "drm/drm_plane.h"
#include <linux/types.h>
struct SVGA3dCmdHeader;
struct ttm_buffer_object;
struct vmw_bo;
struct vmw_cursor;
struct vmw_private;
struct vmw_surface;
struct vmw_user_object;
#define vmw_plane_to_vcp(x) container_of(x, struct vmw_cursor_plane, base)
static const u32 __maybe_unused vmw_cursor_plane_formats[] = {
DRM_FORMAT_ARGB8888,
};
enum vmw_cursor_update_type {
VMW_CURSOR_UPDATE_NONE = 0,
VMW_CURSOR_UPDATE_LEGACY,
VMW_CURSOR_UPDATE_GB_ONLY,
VMW_CURSOR_UPDATE_MOB,
};
struct vmw_cursor_plane_state {
enum vmw_cursor_update_type update_type;
bool changed;
bool surface_changed;
struct vmw_bo *mob;
struct {
s32 hotspot_x;
s32 hotspot_y;
u32 id;
} legacy;
};
/**
* Derived class for cursor plane object
*
* @base DRM plane object
* @cursor.cursor_mobs Cursor mobs available for re-use
*/
struct vmw_cursor_plane {
struct drm_plane base;
struct vmw_bo *cursor_mobs[3];
};
struct vmw_surface_metadata;
void *vmw_cursor_snooper_create(struct drm_file *file_priv,
struct vmw_surface_metadata *metadata);
void vmw_cursor_cmd_dma_snoop(SVGA3dCmdHeader *header,
struct vmw_surface *srf,
struct ttm_buffer_object *bo);
void vmw_cursor_plane_destroy(struct drm_plane *plane);
int vmw_cursor_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state);
void vmw_cursor_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state);
int vmw_cursor_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state);
void vmw_cursor_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state);
#endif /* VMWGFX_CURSOR_H */