diff options
Diffstat (limited to 'src/VBox/Additions/linux/drm/vbox_drv.h')
| -rw-r--r-- | src/VBox/Additions/linux/drm/vbox_drv.h | 557 |
1 files changed, 557 insertions, 0 deletions
diff --git a/src/VBox/Additions/linux/drm/vbox_drv.h b/src/VBox/Additions/linux/drm/vbox_drv.h new file mode 100644 index 00000000..8eb9f83e --- /dev/null +++ b/src/VBox/Additions/linux/drm/vbox_drv.h @@ -0,0 +1,557 @@ +/* $Id: vbox_drv.h $ */ +/** @file + * VirtualBox Additions Linux kernel video driver + */ + +/* + * Copyright (C) 2013-2023 Oracle and/or its affiliates. + * This file is based on ast_drv.h + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * Authors: Dave Airlie <airlied@redhat.com> + * Michael Thayer <michael.thayer@oracle.com, + * Hans de Goede <hdegoede@redhat.com> + */ + +#ifndef GA_INCLUDED_SRC_linux_drm_vbox_drv_h +#define GA_INCLUDED_SRC_linux_drm_vbox_drv_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <linux/version.h> + +/* iprt/linux/version.h copy - start */ +/** @def RTLNX_VER_MIN + * Evaluates to true if the linux kernel version is equal or higher to the + * one specfied. */ +#define RTLNX_VER_MIN(a_Major, a_Minor, a_Patch) \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(a_Major, a_Minor, a_Patch)) + +/** @def RTLNX_VER_MAX + * Evaluates to true if the linux kernel version is less to the one specfied + * (exclusive). */ +#define RTLNX_VER_MAX(a_Major, a_Minor, a_Patch) \ + (LINUX_VERSION_CODE < KERNEL_VERSION(a_Major, a_Minor, a_Patch)) + +/** @def RTLNX_VER_RANGE + * Evaluates to true if the linux kernel version is equal or higher to the given + * minimum version and less (but not equal) to the maximum version (exclusive). */ +#define RTLNX_VER_RANGE(a_MajorMin, a_MinorMin, a_PatchMin, a_MajorMax, a_MinorMax, a_PatchMax) \ + ( LINUX_VERSION_CODE >= KERNEL_VERSION(a_MajorMin, a_MinorMin, a_PatchMin) \ + && LINUX_VERSION_CODE < KERNEL_VERSION(a_MajorMax, a_MinorMax, a_PatchMax) ) + + +/** @def RTLNX_RHEL_MIN + * Require a minium RedHat release. + * @param a_iMajor The major release number (RHEL_MAJOR). + * @param a_iMinor The minor release number (RHEL_MINOR). + * @sa RTLNX_RHEL_MAX, RTLNX_RHEL_RANGE, RTLNX_RHEL_MAJ_PREREQ + */ +#if defined(RHEL_MAJOR) && defined(RHEL_MINOR) +# define RTLNX_RHEL_MIN(a_iMajor, a_iMinor) \ + ((RHEL_MAJOR) > (a_iMajor) || ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) >= (a_iMinor))) +#else +# define RTLNX_RHEL_MIN(a_iMajor, a_iMinor) (0) +#endif + +/** @def RTLNX_RHEL_MAX + * Require a maximum RedHat release, true for all RHEL versions below it. + * @param a_iMajor The major release number (RHEL_MAJOR). + * @param a_iMinor The minor release number (RHEL_MINOR). + * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_RANGE, RTLNX_RHEL_MAJ_PREREQ + */ +#if defined(RHEL_MAJOR) && defined(RHEL_MINOR) +# define RTLNX_RHEL_MAX(a_iMajor, a_iMinor) \ + ((RHEL_MAJOR) < (a_iMajor) || ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) < (a_iMinor))) +#else +# define RTLNX_RHEL_MAX(a_iMajor, a_iMinor) (0) +#endif + +/** @def RTLNX_RHEL_RANGE + * Check that it's a RedHat kernel in the given version range. + * The max version is exclusive, the minimum inclusive. + * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_MAX, RTLNX_RHEL_MAJ_PREREQ + */ +#if defined(RHEL_MAJOR) && defined(RHEL_MINOR) +# define RTLNX_RHEL_RANGE(a_iMajorMin, a_iMinorMin, a_iMajorMax, a_iMinorMax) \ + (RTLNX_RHEL_MIN(a_iMajorMin, a_iMinorMin) && RTLNX_RHEL_MAX(a_iMajorMax, a_iMinorMax)) +#else +# define RTLNX_RHEL_RANGE(a_iMajorMin, a_iMinorMin, a_iMajorMax, a_iMinorMax) (0) +#endif + +/** @def RTLNX_RHEL_MAJ_PREREQ + * Require a minimum minor release number for the given RedHat release. + * @param a_iMajor RHEL_MAJOR must _equal_ this. + * @param a_iMinor RHEL_MINOR must be greater or equal to this. + * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_MAX + */ +#if defined(RHEL_MAJOR) && defined(RHEL_MINOR) +# define RTLNX_RHEL_MAJ_PREREQ(a_iMajor, a_iMinor) ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) >= (a_iMinor)) +#else +# define RTLNX_RHEL_MAJ_PREREQ(a_iMajor, a_iMinor) (0) +#endif + + +/** @def RTLNX_SUSE_MAJ_PREREQ + * Require a minimum minor release number for the given SUSE release. + * @param a_iMajor CONFIG_SUSE_VERSION must _equal_ this. + * @param a_iMinor CONFIG_SUSE_PATCHLEVEL must be greater or equal to this. + */ +#if defined(CONFIG_SUSE_VERSION) && defined(CONFIG_SUSE_PATCHLEVEL) +# define RTLNX_SUSE_MAJ_PREREQ(a_iMajor, a_iMinor) ((CONFIG_SUSE_VERSION) == (a_iMajor) && (CONFIG_SUSE_PATCHLEVEL) >= (a_iMinor)) +#else +# define RTLNX_SUSE_MAJ_PREREQ(a_iMajor, a_iMinor) (0) +#endif +/* iprt/linux/version.h copy - end */ + +#if RTLNX_VER_MAX(4,5,0) +# include <linux/types.h> +# include <linux/spinlock_types.h> +#endif + +#include <linux/genalloc.h> +#include <linux/io.h> +#include <linux/string.h> +#include <linux/pci.h> + + +#if RTLNX_VER_MAX(3,14,0) || RTLNX_RHEL_MAJ_PREREQ(7,1) +#define U8_MAX ((u8)~0U) +#define S8_MAX ((s8)(U8_MAX>>1)) +#define S8_MIN ((s8)(-S8_MAX - 1)) +#define U16_MAX ((u16)~0U) +#define S16_MAX ((s16)(U16_MAX>>1)) +#define S16_MIN ((s16)(-S16_MAX - 1)) +#define U32_MAX ((u32)~0U) +#define S32_MAX ((s32)(U32_MAX>>1)) +#define S32_MIN ((s32)(-S32_MAX - 1)) +#define U64_MAX ((u64)~0ULL) +#define S64_MAX ((s64)(U64_MAX>>1)) +#define S64_MIN ((s64)(-S64_MAX - 1)) +#endif + +#if RTLNX_VER_MIN(5,5,0) || RTLNX_RHEL_MIN(8,3) || RTLNX_SUSE_MAJ_PREREQ(15,3) +# include <drm/drm_file.h> +# include <drm/drm_drv.h> +# include <drm/drm_device.h> +# include <drm/drm_ioctl.h> +# include <drm/drm_fourcc.h> +# if RTLNX_VER_MAX(5,15,0) && !RTLNX_RHEL_RANGE(8,7, 8,99) && !RTLNX_RHEL_MAJ_PREREQ(9,1) && !RTLNX_SUSE_MAJ_PREREQ(15,5) +# include <drm/drm_irq.h> +# endif +# include <drm/drm_vblank.h> +#else /* < 5.5.0 || RHEL < 8.3 || SLES < 15-SP3 */ +# include <drm/drmP.h> +#endif +#if RTLNX_VER_MIN(4,11,0) || RTLNX_RHEL_MAJ_PREREQ(7,5) +# include <drm/drm_encoder.h> +#endif +#include <drm/drm_fb_helper.h> +#if RTLNX_VER_MIN(3,18,0) || RTLNX_RHEL_MAJ_PREREQ(7,2) +# include <drm/drm_gem.h> +#endif + +#if RTLNX_VER_MIN(6,3,0) || RTLNX_RHEL_RANGE(8,9, 8,99) || RTLNX_RHEL_RANGE(9,3, 9,99) +# include <drm/ttm/ttm_bo.h> +#else +# include <drm/ttm/ttm_bo_api.h> +# include <drm/ttm/ttm_bo_driver.h> +#endif +#include <drm/ttm/ttm_placement.h> +#if RTLNX_VER_MAX(5,13,0) && !RTLNX_RHEL_RANGE(8,6, 8,99) +# include <drm/ttm/ttm_memory.h> +#endif +#if RTLNX_VER_MAX(5,12,0) && !RTLNX_RHEL_MAJ_PREREQ(8,5) +# include <drm/ttm/ttm_module.h> +#endif +#if RTLNX_VER_MIN(5,10,0) +# include <drm/ttm/ttm_resource.h> +#endif + +#if RTLNX_VER_MIN(6,0,0) || RTLNX_RHEL_RANGE(8,8, 8,99) || RTLNX_RHEL_MAJ_PREREQ(9,2) || RTLNX_SUSE_MAJ_PREREQ(15,5) +# include <drm/drm_framebuffer.h> +#endif + +#include "vboxvideo_guest.h" +#include "vboxvideo_vbe.h" +#include "hgsmi_ch_setup.h" + +#include "product-generated.h" + +#if RTLNX_VER_MAX(4,12,0) && !RTLNX_RHEL_MAJ_PREREQ(7,5) +static inline void drm_gem_object_put_unlocked(struct drm_gem_object *obj) +{ + drm_gem_object_unreference_unlocked(obj); +} +#endif + +#if RTLNX_VER_MAX(4,12,0) && !RTLNX_RHEL_MAJ_PREREQ(7,5) +static inline void drm_gem_object_put(struct drm_gem_object *obj) +{ + drm_gem_object_unreference(obj); +} +#endif + +#define DRIVER_AUTHOR VBOX_VENDOR + +#define DRIVER_NAME "vboxvideo" +#define DRIVER_DESC VBOX_PRODUCT " Graphics Card" +#define DRIVER_DATE "20130823" + +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 + +#define VBOX_MAX_CURSOR_WIDTH 64 +#define VBOX_MAX_CURSOR_HEIGHT 64 +#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT) +#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8) + +#define VBOX_MAX_SCREENS 32 + +#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \ + VBVA_ADAPTER_INFORMATION_SIZE) +#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE +#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \ + sizeof(HGSMIHOSTFLAGS)) +#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE + +/** Field "pdev" of struct drm_device was removed in 5.14. This macro + * transparently handles this change. Input argument is a pointer + * to struct drm_device. */ +#if RTLNX_VER_MIN(5,14,0) || RTLNX_RHEL_RANGE(8,6, 8,99) +# define VBOX_DRM_TO_PCI_DEV(_dev) to_pci_dev(_dev->dev) +#else +# define VBOX_DRM_TO_PCI_DEV(_dev) _dev->pdev +#endif + +/** Field "num_pages" of struct ttm_resource was renamed to "size" in 6.2 and + * now represents number of bytes. This macro handles this change. Input + * argument is a pointer to struct ttm_resource. */ +#if RTLNX_VER_MIN(6,2,0) || RTLNX_RHEL_RANGE(8,9, 8,99) || RTLNX_RHEL_RANGE(9,3, 9,99) +# define VBOX_BO_RESOURCE_NUM_PAGES(_resource) PFN_UP(_resource->size) +#else +# define VBOX_BO_RESOURCE_NUM_PAGES(_resource) _resource->num_pages +#endif + +/** How frequently we refresh if the guest is not providing dirty rectangles. */ +#define VBOX_REFRESH_PERIOD (HZ / 2) + +#if RTLNX_VER_MAX(3,13,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2) +static inline void *devm_kcalloc(struct device *dev, size_t n, size_t size, + gfp_t flags) +{ + return devm_kzalloc(dev, n * size, flags); +} +#endif + +struct vbox_fbdev; + +struct vbox_private { + struct drm_device *dev; + + u8 __iomem *guest_heap; + u8 __iomem *vbva_buffers; + struct gen_pool *guest_pool; + struct VBVABUFFERCONTEXT *vbva_info; + bool any_pitch; + u32 num_crtcs; + /** Amount of available VRAM, including space used for buffers. */ + u32 full_vram_size; + /** Amount of available VRAM, not including space used for buffers. */ + u32 available_vram_size; + /** Array of structures for receiving mode hints. */ + VBVAMODEHINT *last_mode_hints; + + struct vbox_fbdev *fbdev; + + int fb_mtrr; + + struct { +#if RTLNX_VER_MAX(5,0,0) && !RTLNX_RHEL_MAJ_PREREQ(7,7) && !RTLNX_RHEL_MAJ_PREREQ(8,1) + struct drm_global_reference mem_global_ref; + struct ttm_bo_global_ref bo_global_ref; +#endif +#if RTLNX_VER_MIN(5,13,0) || RTLNX_RHEL_RANGE(8,6, 8,99) + struct ttm_device bdev; +#else + struct ttm_bo_device bdev; +#endif + bool mm_initialised; + } ttm; + + struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */ + /** + * We decide whether or not user-space supports display hot-plug + * depending on whether they react to a hot-plug event after the initial + * mode query. + */ + bool initial_mode_queried; + /** + * Do we know that the current user can send us dirty rectangle information? + * If not, do periodic refreshes until we do know. + */ + bool need_refresh_timer; + /** + * As long as the user is not sending us dirty rectangle information, + * refresh the whole screen at regular intervals. + */ + struct delayed_work refresh_work; + struct work_struct hotplug_work; + u32 input_mapping_width; + u32 input_mapping_height; + /** + * Is user-space using an X.Org-style layout of one large frame-buffer + * encompassing all screen ones or is the fbdev console active? + */ + bool single_framebuffer; + u32 cursor_width; + u32 cursor_height; + u32 cursor_hot_x; + u32 cursor_hot_y; + size_t cursor_data_size; + u8 cursor_data[CURSOR_DATA_SIZE]; +}; + +#undef CURSOR_PIXEL_COUNT +#undef CURSOR_DATA_SIZE + +#if RTLNX_VER_MIN(4,19,0) || RTLNX_RHEL_MIN(8,3) +int vbox_driver_load(struct drm_device *dev); +#else +int vbox_driver_load(struct drm_device *dev, unsigned long flags); +#endif +#if RTLNX_VER_MIN(4,11,0) || RTLNX_RHEL_MAJ_PREREQ(7,5) +void vbox_driver_unload(struct drm_device *dev); +#else +int vbox_driver_unload(struct drm_device *dev); +#endif +void vbox_driver_lastclose(struct drm_device *dev); + +struct vbox_gem_object; + +#ifndef VGA_PORT_HGSMI_HOST +#define VGA_PORT_HGSMI_HOST 0x3b0 +#define VGA_PORT_HGSMI_GUEST 0x3d0 +#endif + +struct vbox_connector { + struct drm_connector base; + char name[32]; + struct vbox_crtc *vbox_crtc; + struct { + u32 width; + u32 height; + bool disconnected; + } mode_hint; +}; + +struct vbox_crtc { + struct drm_crtc base; + bool blanked; + bool disconnected; + unsigned int crtc_id; + u32 fb_offset; + bool cursor_enabled; + u32 x_hint; + u32 y_hint; +}; + +struct vbox_encoder { + struct drm_encoder base; +}; + +struct vbox_framebuffer { + struct drm_framebuffer base; + struct drm_gem_object *obj; +}; + +struct vbox_fbdev { + struct drm_fb_helper helper; + struct vbox_framebuffer afb; + int size; + struct ttm_bo_kmap_obj mapping; + int x1, y1, x2, y2; /* dirty rect */ + spinlock_t dirty_lock; +}; + +#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base) +#define to_vbox_connector(x) container_of(x, struct vbox_connector, base) +#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base) +#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base) + +int vbox_mode_init(struct drm_device *dev); +void vbox_mode_fini(struct drm_device *dev); + +#if RTLNX_VER_MAX(3,3,0) +# define DRM_MODE_FB_CMD drm_mode_fb_cmd +#else +# define DRM_MODE_FB_CMD drm_mode_fb_cmd2 +#endif + +#if RTLNX_VER_MAX(3,15,0) && !RTLNX_RHEL_MAJ_PREREQ(7,1) +# define CRTC_FB(crtc) ((crtc)->fb) +#else +# define CRTC_FB(crtc) ((crtc)->primary->fb) +#endif + +void vbox_enable_accel(struct vbox_private *vbox); +void vbox_disable_accel(struct vbox_private *vbox); +void vbox_report_caps(struct vbox_private *vbox); + +void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb, + struct drm_clip_rect *rects, + unsigned int num_rects); + +int vbox_framebuffer_init(struct drm_device *dev, + struct vbox_framebuffer *vbox_fb, +#if RTLNX_VER_MIN(4,5,0) || RTLNX_RHEL_MAJ_PREREQ(7,3) + const struct DRM_MODE_FB_CMD *mode_cmd, +#else + struct DRM_MODE_FB_CMD *mode_cmd, +#endif + struct drm_gem_object *obj); + +int vbox_fbdev_init(struct drm_device *dev); +void vbox_fbdev_fini(struct drm_device *dev); +void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr); + +struct vbox_bo { + struct ttm_buffer_object bo; + struct ttm_placement placement; + struct ttm_bo_kmap_obj kmap; + struct drm_gem_object gem; +#if RTLNX_VER_MAX(3,18,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2) + u32 placements[3]; +#else + struct ttm_place placements[3]; +#endif + int pin_count; +}; + +#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem) + +static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo) +{ + return container_of(bo, struct vbox_bo, bo); +} + +#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base) + +int vbox_dumb_create(struct drm_file *file, + struct drm_device *dev, + struct drm_mode_create_dumb *args); +#if RTLNX_VER_MAX(3,12,0) && !RTLNX_RHEL_MAJ_PREREQ(7,3) +int vbox_dumb_destroy(struct drm_file *file, + struct drm_device *dev, u32 handle); +#endif + +void vbox_gem_free_object(struct drm_gem_object *obj); +int vbox_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + u32 handle, u64 *offset); + +#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT) + +int vbox_mm_init(struct vbox_private *vbox); +void vbox_mm_fini(struct vbox_private *vbox); + +int vbox_bo_create(struct drm_device *dev, int size, int align, + u32 flags, struct vbox_bo **pvboxbo); + +int vbox_gem_create(struct drm_device *dev, + u32 size, bool iskernel, struct drm_gem_object **obj); + +#define VBOX_MEM_TYPE_VRAM 0x1 +#define VBOX_MEM_TYPE_SYSTEM 0x2 + +int vbox_bo_pin(struct vbox_bo *bo, u32 mem_type, u64 *gpu_addr); +int vbox_bo_unpin(struct vbox_bo *bo); + +static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait) +{ + int ret; + +#if RTLNX_VER_MIN(4,7,0) || RTLNX_RHEL_MAJ_PREREQ(7,4) + ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL); +#else + ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0); +#endif + if (ret) { + if (ret != -ERESTARTSYS && ret != -EBUSY) + DRM_ERROR("reserve failed %p\n", bo); + return ret; + } + return 0; +} + +static inline void vbox_bo_unreserve(struct vbox_bo *bo) +{ + ttm_bo_unreserve(&bo->bo); +} + +void vbox_ttm_placement(struct vbox_bo *bo, u32 mem_type); +int vbox_bo_push_sysram(struct vbox_bo *bo); +int vbox_mmap(struct file *filp, struct vm_area_struct *vma); + +/* vbox_prime.c */ +int vbox_gem_prime_pin(struct drm_gem_object *obj); +void vbox_gem_prime_unpin(struct drm_gem_object *obj); +struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj); +#if RTLNX_VER_MAX(3,18,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2) +struct drm_gem_object *vbox_gem_prime_import_sg_table( + struct drm_device *dev, size_t size, struct sg_table *table); +#else +struct drm_gem_object *vbox_gem_prime_import_sg_table( + struct drm_device *dev, struct dma_buf_attachment *attach, + struct sg_table *table); +#endif +void *vbox_gem_prime_vmap(struct drm_gem_object *obj); +void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); +#if RTLNX_VER_MAX(6,6,0) && !RTLNX_RHEL_RANGE(9,4, 9,99) +int vbox_gem_prime_mmap(struct drm_gem_object *obj, + struct vm_area_struct *area); +#endif + +/* vbox_irq.c */ +int vbox_irq_init(struct vbox_private *vbox); +void vbox_irq_fini(struct vbox_private *vbox); +void vbox_report_hotplug(struct vbox_private *vbox); +#if RTLNX_VER_MAX(5,15,0) && !RTLNX_RHEL_MAJ_PREREQ(9,1) && !RTLNX_SUSE_MAJ_PREREQ(15,5) +irqreturn_t vbox_irq_handler(int irq, void *arg); +#endif + +/* vbox_hgsmi.c */ +void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size, + u8 channel, u16 channel_info); +void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf); +int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf); + +static inline void vbox_write_ioport(u16 index, u16 data) +{ + outw(index, VBE_DISPI_IOPORT_INDEX); + outw(data, VBE_DISPI_IOPORT_DATA); +} + +#endif /* !GA_INCLUDED_SRC_linux_drm_vbox_drv_h */ |