freebsd-nq/sys/dev/drm2/i915/intel_fb.c

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/*
* Copyright © 2007 David Airlie
*
* 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, sublicense,
* 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 above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* David Airlie
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dev/drm2/drmP.h>
#include <dev/drm2/drm.h>
#include <dev/drm2/drm_crtc.h>
#include <dev/drm2/drm_fb_helper.h>
#include <dev/drm2/i915/i915_drm.h>
#include <dev/drm2/i915/i915_drv.h>
#include <dev/drm2/i915/intel_drv.h>
static int intelfb_create(struct intel_fbdev *ifbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = ifbdev->helper.dev;
#if 0
struct drm_i915_private *dev_priv = dev->dev_private;
struct fb_info *info;
#endif
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_i915_gem_object *obj;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = roundup2(size, PAGE_SIZE);
obj = i915_gem_alloc_object(dev, size);
if (!obj) {
DRM_ERROR("failed to allocate framebuffer\n");
ret = -ENOMEM;
goto out;
}
DRM_LOCK(dev);
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, false);
if (ret) {
DRM_ERROR("failed to pin fb: %d\n", ret);
goto out_unref;
}
#if 0
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = ifbdev;
#endif
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
#if 0
ifbdev->helper.fbdev = info;
strcpy(info->fix.id, "inteldrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unpin;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_unpin;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
info->fix.smem_len = size;
info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_unpin;
}
info->screen_size = size;
// memset(info->screen_base, 0, size);
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
#endif
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
fb->width, fb->height,
obj->gtt_offset, obj);
DRM_UNLOCK(dev);
#if 1
KIB_NOTYET();
#else
vga_switcheroo_client_fb_set(dev->pdev, info);
#endif
return 0;
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
DRM_UNLOCK(dev);
out:
return ret;
}
static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
int new_fb = 0;
int ret;
if (!helper->fb) {
ret = intelfb_create(ifbdev, sizes);
if (ret)
return ret;
new_fb = 1;
}
return new_fb;
}
static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
.gamma_set = intel_crtc_fb_gamma_set,
.gamma_get = intel_crtc_fb_gamma_get,
.fb_probe = intel_fb_find_or_create_single,
};
static void intel_fbdev_destroy(struct drm_device *dev,
struct intel_fbdev *ifbdev)
{
#if 0
struct fb_info *info;
#endif
struct intel_framebuffer *ifb = &ifbdev->ifb;
#if 0
if (ifbdev->helper.fbdev) {
info = ifbdev->helper.fbdev;
unregister_framebuffer(info);
iounmap(info->screen_base);
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
#endif
drm_fb_helper_fini(&ifbdev->helper);
drm_framebuffer_cleanup(&ifb->base);
if (ifb->obj) {
drm_gem_object_unreference_unlocked(&ifb->obj->base);
ifb->obj = NULL;
}
}
extern int sc_txtmouse_no_retrace_wait;
int intel_fbdev_init(struct drm_device *dev)
{
struct intel_fbdev *ifbdev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS,
M_WAITOK | M_ZERO);
dev_priv->fbdev = ifbdev;
ifbdev->helper.funcs = &intel_fb_helper_funcs;
ret = drm_fb_helper_init(dev, &ifbdev->helper,
dev_priv->num_pipe,
INTELFB_CONN_LIMIT);
if (ret) {
free(ifbdev, DRM_MEM_KMS);
return ret;
}
drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
drm_fb_helper_initial_config(&ifbdev->helper, 32);
sc_txtmouse_no_retrace_wait = 1;
return 0;
}
void intel_fbdev_fini(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
if (!dev_priv->fbdev)
return;
intel_fbdev_destroy(dev, dev_priv->fbdev);
free(dev_priv->fbdev, DRM_MEM_KMS);
dev_priv->fbdev = NULL;
}
void intel_fb_output_poll_changed(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
}
void intel_fb_restore_mode(struct drm_device *dev)
{
int ret;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_mode_config *config = &dev->mode_config;
struct drm_plane *plane;
sx_xlock(&dev->mode_config.mutex);
ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
/* Be sure to shut off any planes that may be active */
list_for_each_entry(plane, &config->plane_list, head)
plane->funcs->disable_plane(plane);
sx_xunlock(&dev->mode_config.mutex);
}