diff options
Diffstat (limited to 'drivers/gpu/drm/vboxvideo/vboxvideo_guest.h')
-rw-r--r-- | drivers/gpu/drm/vboxvideo/vboxvideo_guest.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vboxvideo/vboxvideo_guest.h b/drivers/gpu/drm/vboxvideo/vboxvideo_guest.h new file mode 100644 index 0000000000..55fcee3a64 --- /dev/null +++ b/drivers/gpu/drm/vboxvideo/vboxvideo_guest.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: MIT */ +/* Copyright (C) 2006-2016 Oracle Corporation */ + +#ifndef __VBOXVIDEO_GUEST_H__ +#define __VBOXVIDEO_GUEST_H__ + +#include <linux/genalloc.h> +#include "vboxvideo.h" + +/* + * Structure grouping the context needed for sending graphics acceleration + * information to the host via VBVA. Each screen has its own VBVA buffer. + */ +struct vbva_buf_ctx { + /* Offset of the buffer in the VRAM section for the screen */ + u32 buffer_offset; + /* Length of the buffer in bytes */ + u32 buffer_length; + /* Set if we wrote to the buffer faster than the host could read it */ + bool buffer_overflow; + /* VBVA record that we are currently preparing for the host, or NULL */ + struct vbva_record *record; + /* + * Pointer to the VBVA buffer mapped into the current address space. + * Will be NULL if VBVA is not enabled. + */ + struct vbva_buffer *vbva; +}; + +int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location); +int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps); +int hgsmi_test_query_conf(struct gen_pool *ctx); +int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret); +int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags, + u32 hot_x, u32 hot_y, u32 width, u32 height, + u8 *pixels, u32 len); +int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position, + u32 x, u32 y, u32 *x_host, u32 *y_host); + +bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, + struct vbva_buffer *vbva, s32 screen); +void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, + s32 screen); +bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx, + struct gen_pool *ctx); +void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx); +bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, + const void *p, u32 len); +void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx, + u32 buffer_offset, u32 buffer_length); + +void hgsmi_process_display_info(struct gen_pool *ctx, u32 display, + s32 origin_x, s32 origin_y, u32 start_offset, + u32 pitch, u32 width, u32 height, + u16 bpp, u16 flags); +int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y, + u32 width, u32 height); +int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens, + struct vbva_modehint *hints); + +#endif |