![Thierry Reding](/assets/img/avatar_default.png)
The final parameter to ttm_bo_reserve() is a pointer, therefore callers should use NULL instead of 0. Fixes a bunch of sparse warnings of this type: warning: Using plain integer as NULL pointer Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
216 lines
5 KiB
C
216 lines
5 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include "bochs.h"
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static struct fb_ops bochsfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = drm_fb_helper_check_var,
|
|
.fb_set_par = drm_fb_helper_set_par,
|
|
.fb_fillrect = sys_fillrect,
|
|
.fb_copyarea = sys_copyarea,
|
|
.fb_imageblit = sys_imageblit,
|
|
.fb_pan_display = drm_fb_helper_pan_display,
|
|
.fb_blank = drm_fb_helper_blank,
|
|
.fb_setcmap = drm_fb_helper_setcmap,
|
|
};
|
|
|
|
static int bochsfb_create_object(struct bochs_device *bochs,
|
|
struct drm_mode_fb_cmd2 *mode_cmd,
|
|
struct drm_gem_object **gobj_p)
|
|
{
|
|
struct drm_device *dev = bochs->dev;
|
|
struct drm_gem_object *gobj;
|
|
u32 size;
|
|
int ret = 0;
|
|
|
|
size = mode_cmd->pitches[0] * mode_cmd->height;
|
|
ret = bochs_gem_create(dev, size, true, &gobj);
|
|
if (ret)
|
|
return ret;
|
|
|
|
*gobj_p = gobj;
|
|
return ret;
|
|
}
|
|
|
|
static int bochsfb_create(struct drm_fb_helper *helper,
|
|
struct drm_fb_helper_surface_size *sizes)
|
|
{
|
|
struct bochs_device *bochs =
|
|
container_of(helper, struct bochs_device, fb.helper);
|
|
struct drm_device *dev = bochs->dev;
|
|
struct fb_info *info;
|
|
struct drm_framebuffer *fb;
|
|
struct drm_mode_fb_cmd2 mode_cmd;
|
|
struct device *device = &dev->pdev->dev;
|
|
struct drm_gem_object *gobj = NULL;
|
|
struct bochs_bo *bo = NULL;
|
|
int size, ret;
|
|
|
|
if (sizes->surface_bpp != 32)
|
|
return -EINVAL;
|
|
|
|
mode_cmd.width = sizes->surface_width;
|
|
mode_cmd.height = sizes->surface_height;
|
|
mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
|
|
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
|
|
sizes->surface_depth);
|
|
size = mode_cmd.pitches[0] * mode_cmd.height;
|
|
|
|
/* alloc, pin & map bo */
|
|
ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
|
|
if (ret) {
|
|
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
bo = gem_to_bochs_bo(gobj);
|
|
|
|
ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
|
|
if (ret) {
|
|
DRM_ERROR("failed to pin fbcon\n");
|
|
ttm_bo_unreserve(&bo->bo);
|
|
return ret;
|
|
}
|
|
|
|
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
|
|
&bo->kmap);
|
|
if (ret) {
|
|
DRM_ERROR("failed to kmap fbcon\n");
|
|
ttm_bo_unreserve(&bo->bo);
|
|
return ret;
|
|
}
|
|
|
|
ttm_bo_unreserve(&bo->bo);
|
|
|
|
/* init fb device */
|
|
info = framebuffer_alloc(0, device);
|
|
if (info == NULL)
|
|
return -ENOMEM;
|
|
|
|
info->par = &bochs->fb.helper;
|
|
|
|
ret = bochs_framebuffer_init(bochs->dev, &bochs->fb.gfb, &mode_cmd, gobj);
|
|
if (ret)
|
|
return ret;
|
|
|
|
bochs->fb.size = size;
|
|
|
|
/* setup helper */
|
|
fb = &bochs->fb.gfb.base;
|
|
bochs->fb.helper.fb = fb;
|
|
bochs->fb.helper.fbdev = info;
|
|
|
|
strcpy(info->fix.id, "bochsdrmfb");
|
|
|
|
info->flags = FBINFO_DEFAULT;
|
|
info->fbops = &bochsfb_ops;
|
|
|
|
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
|
|
drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
|
|
sizes->fb_height);
|
|
|
|
info->screen_base = bo->kmap.virtual;
|
|
info->screen_size = size;
|
|
|
|
#if 0
|
|
/* FIXME: get this right for mmap(/dev/fb0) */
|
|
info->fix.smem_start = bochs_bo_mmap_offset(bo);
|
|
info->fix.smem_len = size;
|
|
#endif
|
|
|
|
ret = fb_alloc_cmap(&info->cmap, 256, 0);
|
|
if (ret) {
|
|
DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bochs_fbdev_destroy(struct bochs_device *bochs)
|
|
{
|
|
struct bochs_framebuffer *gfb = &bochs->fb.gfb;
|
|
struct fb_info *info;
|
|
|
|
DRM_DEBUG_DRIVER("\n");
|
|
|
|
if (bochs->fb.helper.fbdev) {
|
|
info = bochs->fb.helper.fbdev;
|
|
|
|
unregister_framebuffer(info);
|
|
if (info->cmap.len)
|
|
fb_dealloc_cmap(&info->cmap);
|
|
framebuffer_release(info);
|
|
}
|
|
|
|
if (gfb->obj) {
|
|
drm_gem_object_unreference_unlocked(gfb->obj);
|
|
gfb->obj = NULL;
|
|
}
|
|
|
|
drm_fb_helper_fini(&bochs->fb.helper);
|
|
drm_framebuffer_unregister_private(&gfb->base);
|
|
drm_framebuffer_cleanup(&gfb->base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void bochs_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
|
|
u16 blue, int regno)
|
|
{
|
|
}
|
|
|
|
void bochs_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
|
|
u16 *blue, int regno)
|
|
{
|
|
*red = regno;
|
|
*green = regno;
|
|
*blue = regno;
|
|
}
|
|
|
|
static const struct drm_fb_helper_funcs bochs_fb_helper_funcs = {
|
|
.gamma_set = bochs_fb_gamma_set,
|
|
.gamma_get = bochs_fb_gamma_get,
|
|
.fb_probe = bochsfb_create,
|
|
};
|
|
|
|
int bochs_fbdev_init(struct bochs_device *bochs)
|
|
{
|
|
int ret;
|
|
|
|
drm_fb_helper_prepare(bochs->dev, &bochs->fb.helper,
|
|
&bochs_fb_helper_funcs);
|
|
|
|
ret = drm_fb_helper_init(bochs->dev, &bochs->fb.helper,
|
|
1, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
drm_fb_helper_single_add_all_connectors(&bochs->fb.helper);
|
|
drm_helper_disable_unused_functions(bochs->dev);
|
|
drm_fb_helper_initial_config(&bochs->fb.helper, 32);
|
|
|
|
bochs->fb.initialized = true;
|
|
return 0;
|
|
}
|
|
|
|
void bochs_fbdev_fini(struct bochs_device *bochs)
|
|
{
|
|
if (!bochs->fb.initialized)
|
|
return;
|
|
|
|
bochs_fbdev_destroy(bochs);
|
|
bochs->fb.initialized = false;
|
|
}
|