mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-04 02:25:58 +00:00
965544150d
Refactor cursor handling to make the code maintainable again. Over the last 12 years the svga device improved support for virtualized cursors and at the same time the drm interfaces evolved quite a bit from pre-atomic to current atomic ones. vmwgfx only added new code over the years, instead of adjusting/refactoring the paths. Export the cursor plane handling to its own file. Remove special handling of the legacy cursor support to make it fit within the global cursor plane mechanism. Finally redo dirty tracking because memcmp never worked correctly resulting in the cursor not being properly updated in the guest. Signed-off-by: Zack Rusin <zack.rusin@broadcom.com> Reviewed-by: Maaz Mombasawala <maaz.mombasawala@broadcom.com> Reviewed-by: Martin Krastev <martin.krastev@broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250307125836.3877138-2-zack.rusin@broadcom.com
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/**************************************************************************
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*
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* Copyright (c) 2024-2025 Broadcom. All Rights Reserved. The term
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*
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**************************************************************************/
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#ifndef VMWGFX_CURSOR_PLANE_H
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#define VMWGFX_CURSOR_PLANE_H
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#include "device_include/svga3d_cmd.h"
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#include "drm/drm_file.h"
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#include "drm/drm_fourcc.h"
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#include "drm/drm_plane.h"
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#include <linux/types.h>
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struct SVGA3dCmdHeader;
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struct ttm_buffer_object;
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struct vmw_bo;
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struct vmw_cursor;
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struct vmw_private;
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struct vmw_surface;
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struct vmw_user_object;
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#define vmw_plane_to_vcp(x) container_of(x, struct vmw_cursor_plane, base)
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static const u32 __maybe_unused vmw_cursor_plane_formats[] = {
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DRM_FORMAT_ARGB8888,
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};
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enum vmw_cursor_update_type {
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VMW_CURSOR_UPDATE_NONE = 0,
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VMW_CURSOR_UPDATE_LEGACY,
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VMW_CURSOR_UPDATE_MOB,
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};
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struct vmw_cursor_plane_state {
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enum vmw_cursor_update_type update_type;
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bool changed;
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bool surface_changed;
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struct vmw_bo *mob;
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struct {
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s32 hotspot_x;
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s32 hotspot_y;
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u32 id;
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} legacy;
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};
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/**
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* Derived class for cursor plane object
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*
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* @base DRM plane object
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* @cursor.cursor_mobs Cursor mobs available for re-use
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*/
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struct vmw_cursor_plane {
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struct drm_plane base;
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struct vmw_bo *cursor_mobs[3];
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};
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struct vmw_surface_metadata;
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void *vmw_cursor_snooper_create(struct drm_file *file_priv,
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struct vmw_surface_metadata *metadata);
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void vmw_cursor_cmd_dma_snoop(SVGA3dCmdHeader *header,
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struct vmw_surface *srf,
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struct ttm_buffer_object *bo);
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void vmw_cursor_plane_destroy(struct drm_plane *plane);
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int vmw_cursor_plane_atomic_check(struct drm_plane *plane,
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struct drm_atomic_state *state);
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void vmw_cursor_plane_atomic_update(struct drm_plane *plane,
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struct drm_atomic_state *state);
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int vmw_cursor_plane_prepare_fb(struct drm_plane *plane,
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struct drm_plane_state *new_state);
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void vmw_cursor_plane_cleanup_fb(struct drm_plane *plane,
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struct drm_plane_state *old_state);
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#endif /* VMWGFX_CURSOR_H */
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