![Hans de Goede](/assets/img/avatar_default.png)
Store fbhelper and afb struct directly in vbox_private and use drm_fb_helper_fbdev_setup to replace vbox_fbdev_init, note we cannot use drm_fb_helper_fbdev_teardown since we use a private framebuffer for the fbdev. And replace vbox_driver_lastclose with drm_fb_helper_lastclose. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
413 lines
10 KiB
C
413 lines
10 KiB
C
/*
|
|
* Copyright (C) 2013-2017 Oracle Corporation
|
|
* This file is based on ast_main.c
|
|
* 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>
|
|
*/
|
|
#include <drm/drm_fb_helper.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
|
|
#include "vbox_drv.h"
|
|
#include "vbox_err.h"
|
|
#include "vboxvideo_guest.h"
|
|
#include "vboxvideo_vbe.h"
|
|
|
|
static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
|
|
{
|
|
struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
|
|
|
|
if (vbox_fb->obj)
|
|
drm_gem_object_put_unlocked(vbox_fb->obj);
|
|
|
|
drm_framebuffer_cleanup(fb);
|
|
kfree(fb);
|
|
}
|
|
|
|
void vbox_enable_accel(struct vbox_private *vbox)
|
|
{
|
|
unsigned int i;
|
|
struct vbva_buffer *vbva;
|
|
|
|
if (!vbox->vbva_info || !vbox->vbva_buffers) {
|
|
/* Should never happen... */
|
|
DRM_ERROR("vboxvideo: failed to set up VBVA.\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < vbox->num_crtcs; ++i) {
|
|
if (vbox->vbva_info[i].vbva)
|
|
continue;
|
|
|
|
vbva = (void __force *)vbox->vbva_buffers +
|
|
i * VBVA_MIN_BUFFER_SIZE;
|
|
if (!vbva_enable(&vbox->vbva_info[i],
|
|
vbox->guest_pool, vbva, i)) {
|
|
/* very old host or driver error. */
|
|
DRM_ERROR("vboxvideo: vbva_enable failed\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void vbox_disable_accel(struct vbox_private *vbox)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < vbox->num_crtcs; ++i)
|
|
vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
|
|
}
|
|
|
|
void vbox_report_caps(struct vbox_private *vbox)
|
|
{
|
|
u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
|
|
VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
|
|
|
|
if (vbox->initial_mode_queried)
|
|
caps |= VBVACAPS_VIDEO_MODE_HINTS;
|
|
|
|
hgsmi_send_caps_info(vbox->guest_pool, caps);
|
|
}
|
|
|
|
/**
|
|
* Send information about dirty rectangles to VBVA. If necessary we enable
|
|
* VBVA first, as this is normally disabled after a change of master in case
|
|
* the new master does not send dirty rectangle information (is this even
|
|
* allowed?)
|
|
*/
|
|
void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
|
|
struct drm_clip_rect *rects,
|
|
unsigned int num_rects)
|
|
{
|
|
struct vbox_private *vbox = fb->dev->dev_private;
|
|
struct drm_display_mode *mode;
|
|
struct drm_crtc *crtc;
|
|
int crtc_x, crtc_y;
|
|
unsigned int i;
|
|
|
|
mutex_lock(&vbox->hw_mutex);
|
|
list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
|
|
if (crtc->primary->state->fb != fb)
|
|
continue;
|
|
|
|
mode = &crtc->state->mode;
|
|
crtc_x = crtc->primary->state->src_x >> 16;
|
|
crtc_y = crtc->primary->state->src_y >> 16;
|
|
|
|
vbox_enable_accel(vbox);
|
|
|
|
for (i = 0; i < num_rects; ++i) {
|
|
struct vbva_cmd_hdr cmd_hdr;
|
|
unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
|
|
|
|
if ((rects[i].x1 > crtc_x + mode->hdisplay) ||
|
|
(rects[i].y1 > crtc_y + mode->vdisplay) ||
|
|
(rects[i].x2 < crtc_x) ||
|
|
(rects[i].y2 < crtc_y))
|
|
continue;
|
|
|
|
cmd_hdr.x = (s16)rects[i].x1;
|
|
cmd_hdr.y = (s16)rects[i].y1;
|
|
cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
|
|
cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
|
|
|
|
if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
|
|
vbox->guest_pool))
|
|
continue;
|
|
|
|
vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
|
|
&cmd_hdr, sizeof(cmd_hdr));
|
|
vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
|
|
}
|
|
}
|
|
mutex_unlock(&vbox->hw_mutex);
|
|
}
|
|
|
|
static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
|
|
struct drm_file *file_priv,
|
|
unsigned int flags, unsigned int color,
|
|
struct drm_clip_rect *rects,
|
|
unsigned int num_rects)
|
|
{
|
|
vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_framebuffer_funcs vbox_fb_funcs = {
|
|
.destroy = vbox_user_framebuffer_destroy,
|
|
.dirty = vbox_user_framebuffer_dirty,
|
|
};
|
|
|
|
int vbox_framebuffer_init(struct vbox_private *vbox,
|
|
struct vbox_framebuffer *vbox_fb,
|
|
const struct DRM_MODE_FB_CMD *mode_cmd,
|
|
struct drm_gem_object *obj)
|
|
{
|
|
int ret;
|
|
|
|
drm_helper_mode_fill_fb_struct(&vbox->ddev, &vbox_fb->base, mode_cmd);
|
|
vbox_fb->obj = obj;
|
|
ret = drm_framebuffer_init(&vbox->ddev, &vbox_fb->base, &vbox_fb_funcs);
|
|
if (ret) {
|
|
DRM_ERROR("framebuffer init failed %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vbox_accel_init(struct vbox_private *vbox)
|
|
{
|
|
unsigned int i;
|
|
|
|
vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
|
|
sizeof(*vbox->vbva_info), GFP_KERNEL);
|
|
if (!vbox->vbva_info)
|
|
return -ENOMEM;
|
|
|
|
/* Take a command buffer for each screen from the end of usable VRAM. */
|
|
vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
|
|
|
|
vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0,
|
|
vbox->available_vram_size,
|
|
vbox->num_crtcs *
|
|
VBVA_MIN_BUFFER_SIZE);
|
|
if (!vbox->vbva_buffers)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < vbox->num_crtcs; ++i)
|
|
vbva_setup_buffer_context(&vbox->vbva_info[i],
|
|
vbox->available_vram_size +
|
|
i * VBVA_MIN_BUFFER_SIZE,
|
|
VBVA_MIN_BUFFER_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vbox_accel_fini(struct vbox_private *vbox)
|
|
{
|
|
vbox_disable_accel(vbox);
|
|
pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
|
|
}
|
|
|
|
/** Do we support the 4.3 plus mode hint reporting interface? */
|
|
static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
|
|
{
|
|
u32 have_hints, have_cursor;
|
|
int ret;
|
|
|
|
ret = hgsmi_query_conf(vbox->guest_pool,
|
|
VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
|
|
&have_hints);
|
|
if (ret)
|
|
return false;
|
|
|
|
ret = hgsmi_query_conf(vbox->guest_pool,
|
|
VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
|
|
&have_cursor);
|
|
if (ret)
|
|
return false;
|
|
|
|
return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
|
|
}
|
|
|
|
bool vbox_check_supported(u16 id)
|
|
{
|
|
u16 dispi_id;
|
|
|
|
vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
|
|
dispi_id = inw(VBE_DISPI_IOPORT_DATA);
|
|
|
|
return dispi_id == id;
|
|
}
|
|
|
|
/**
|
|
* Set up our heaps and data exchange buffers in VRAM before handing the rest
|
|
* to the memory manager.
|
|
*/
|
|
int vbox_hw_init(struct vbox_private *vbox)
|
|
{
|
|
int ret = -ENOMEM;
|
|
|
|
vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
|
|
vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
|
|
|
|
DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
|
|
|
|
/* Map guest-heap at end of vram */
|
|
vbox->guest_heap =
|
|
pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
|
|
GUEST_HEAP_SIZE);
|
|
if (!vbox->guest_heap)
|
|
return -ENOMEM;
|
|
|
|
/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
|
|
vbox->guest_pool = gen_pool_create(4, -1);
|
|
if (!vbox->guest_pool)
|
|
goto err_unmap_guest_heap;
|
|
|
|
ret = gen_pool_add_virt(vbox->guest_pool,
|
|
(unsigned long)vbox->guest_heap,
|
|
GUEST_HEAP_OFFSET(vbox),
|
|
GUEST_HEAP_USABLE_SIZE, -1);
|
|
if (ret)
|
|
goto err_destroy_guest_pool;
|
|
|
|
ret = hgsmi_test_query_conf(vbox->guest_pool);
|
|
if (ret) {
|
|
DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
|
|
goto err_destroy_guest_pool;
|
|
}
|
|
|
|
/* Reduce available VRAM size to reflect the guest heap. */
|
|
vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
|
|
/* Linux drm represents monitors as a 32-bit array. */
|
|
hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
|
|
&vbox->num_crtcs);
|
|
vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
|
|
|
|
if (!have_hgsmi_mode_hints(vbox)) {
|
|
ret = -ENOTSUPP;
|
|
goto err_destroy_guest_pool;
|
|
}
|
|
|
|
vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
|
|
sizeof(struct vbva_modehint),
|
|
GFP_KERNEL);
|
|
if (!vbox->last_mode_hints) {
|
|
ret = -ENOMEM;
|
|
goto err_destroy_guest_pool;
|
|
}
|
|
|
|
ret = vbox_accel_init(vbox);
|
|
if (ret)
|
|
goto err_destroy_guest_pool;
|
|
|
|
return 0;
|
|
|
|
err_destroy_guest_pool:
|
|
gen_pool_destroy(vbox->guest_pool);
|
|
err_unmap_guest_heap:
|
|
pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
|
|
return ret;
|
|
}
|
|
|
|
void vbox_hw_fini(struct vbox_private *vbox)
|
|
{
|
|
vbox_accel_fini(vbox);
|
|
gen_pool_destroy(vbox->guest_pool);
|
|
pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
|
|
}
|
|
|
|
int vbox_gem_create(struct vbox_private *vbox,
|
|
u32 size, bool iskernel, struct drm_gem_object **obj)
|
|
{
|
|
struct vbox_bo *vboxbo;
|
|
int ret;
|
|
|
|
*obj = NULL;
|
|
|
|
size = roundup(size, PAGE_SIZE);
|
|
if (size == 0)
|
|
return -EINVAL;
|
|
|
|
ret = vbox_bo_create(vbox, size, 0, 0, &vboxbo);
|
|
if (ret) {
|
|
if (ret != -ERESTARTSYS)
|
|
DRM_ERROR("failed to allocate GEM object\n");
|
|
return ret;
|
|
}
|
|
|
|
*obj = &vboxbo->gem;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vbox_dumb_create(struct drm_file *file,
|
|
struct drm_device *dev, struct drm_mode_create_dumb *args)
|
|
{
|
|
struct vbox_private *vbox =
|
|
container_of(dev, struct vbox_private, ddev);
|
|
struct drm_gem_object *gobj;
|
|
u32 handle;
|
|
int ret;
|
|
|
|
args->pitch = args->width * ((args->bpp + 7) / 8);
|
|
args->size = args->pitch * args->height;
|
|
|
|
ret = vbox_gem_create(vbox, args->size, false, &gobj);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = drm_gem_handle_create(file, gobj, &handle);
|
|
drm_gem_object_put_unlocked(gobj);
|
|
if (ret)
|
|
return ret;
|
|
|
|
args->handle = handle;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void vbox_gem_free_object(struct drm_gem_object *obj)
|
|
{
|
|
struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
|
|
|
|
ttm_bo_put(&vbox_bo->bo);
|
|
}
|
|
|
|
static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
|
|
{
|
|
return drm_vma_node_offset_addr(&bo->bo.vma_node);
|
|
}
|
|
|
|
int
|
|
vbox_dumb_mmap_offset(struct drm_file *file,
|
|
struct drm_device *dev,
|
|
u32 handle, u64 *offset)
|
|
{
|
|
struct drm_gem_object *obj;
|
|
int ret;
|
|
struct vbox_bo *bo;
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
obj = drm_gem_object_lookup(file, handle);
|
|
if (!obj) {
|
|
ret = -ENOENT;
|
|
goto out_unlock;
|
|
}
|
|
|
|
bo = gem_to_vbox_bo(obj);
|
|
*offset = vbox_bo_mmap_offset(bo);
|
|
|
|
drm_gem_object_put(obj);
|
|
ret = 0;
|
|
|
|
out_unlock:
|
|
mutex_unlock(&dev->struct_mutex);
|
|
return ret;
|
|
}
|