271 lines
7.3 KiB
C
271 lines
7.3 KiB
C
/*
|
|
* 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 <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/string.h>
|
|
//#include <linux/mm.h>
|
|
//#include <linux/tty.h>
|
|
#include <linux/sysrq.h>
|
|
//#include <linux/delay.h>
|
|
#include <linux/fb.h>
|
|
//#include <linux/init.h>
|
|
//#include <linux/vga_switcheroo.h>
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_crtc.h>
|
|
#include <drm/drm_fb_helper.h>
|
|
#include "intel_drv.h"
|
|
#include <drm/i915_drm.h>
|
|
#include "i915_drv.h"
|
|
|
|
static struct drm_i915_gem_object *fb_obj;
|
|
|
|
struct drm_i915_gem_object *get_fb_obj()
|
|
{
|
|
return fb_obj;
|
|
};
|
|
|
|
struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
|
|
{
|
|
#define BYTES_PER_LONG (BITS_PER_LONG/8)
|
|
#define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG))
|
|
int fb_info_size = sizeof(struct fb_info);
|
|
struct fb_info *info;
|
|
char *p;
|
|
|
|
if (size)
|
|
fb_info_size += PADDING;
|
|
|
|
p = kzalloc(fb_info_size + size, GFP_KERNEL);
|
|
|
|
if (!p)
|
|
return NULL;
|
|
|
|
info = (struct fb_info *) p;
|
|
|
|
if (size)
|
|
info->par = p + fb_info_size;
|
|
|
|
return info;
|
|
#undef PADDING
|
|
#undef BYTES_PER_LONG
|
|
}
|
|
|
|
|
|
static struct fb_ops intelfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = drm_fb_helper_check_var,
|
|
.fb_set_par = drm_fb_helper_set_par,
|
|
// .fb_fillrect = cfb_fillrect,
|
|
// .fb_copyarea = cfb_copyarea,
|
|
// .fb_imageblit = cfb_imageblit,
|
|
// .fb_pan_display = drm_fb_helper_pan_display,
|
|
.fb_blank = drm_fb_helper_blank,
|
|
// .fb_setcmap = drm_fb_helper_setcmap,
|
|
// .fb_debug_enter = drm_fb_helper_debug_enter,
|
|
// .fb_debug_leave = drm_fb_helper_debug_leave,
|
|
};
|
|
|
|
static int intelfb_create(struct drm_fb_helper *helper,
|
|
struct drm_fb_helper_surface_size *sizes)
|
|
{
|
|
struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
|
|
struct drm_device *dev = ifbdev->helper.dev;
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct fb_info *info;
|
|
struct drm_framebuffer *fb;
|
|
struct drm_mode_fb_cmd2 mode_cmd = {};
|
|
struct drm_i915_gem_object *obj;
|
|
struct device *device = &dev->pdev->dev;
|
|
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] = ALIGN(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 = ALIGN(size, PAGE_SIZE);
|
|
obj = i915_gem_alloc_object(dev, size);
|
|
if (!obj) {
|
|
DRM_ERROR("failed to allocate framebuffer\n");
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
|
|
#if 0
|
|
// skip this part and use existing framebiffer
|
|
|
|
/* 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;
|
|
}
|
|
#endif
|
|
|
|
/***********************************************************************/
|
|
{
|
|
#define LFB_SIZE 0xC00000
|
|
|
|
static struct drm_mm_node lfb_vm_node;
|
|
|
|
lfb_vm_node.size = LFB_SIZE;
|
|
lfb_vm_node.start = 0;
|
|
lfb_vm_node.mm = NULL;
|
|
|
|
obj->gtt_space = &lfb_vm_node;
|
|
obj->gtt_offset = 0;
|
|
obj->pin_count = 2;
|
|
obj->cache_level = I915_CACHE_NONE;
|
|
obj->base.write_domain = 0;
|
|
obj->base.read_domains = I915_GEM_DOMAIN_GTT;
|
|
|
|
}
|
|
/***********************************************************************/
|
|
|
|
info = framebuffer_alloc(0, device);
|
|
if (!info) {
|
|
ret = -ENOMEM;
|
|
goto out_unpin;
|
|
}
|
|
|
|
info->par = ifbdev;
|
|
|
|
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
|
|
if (ret)
|
|
goto out_unpin;
|
|
|
|
fb = &ifbdev->ifb.base;
|
|
|
|
ifbdev->helper.fb = fb;
|
|
ifbdev->helper.fbdev = info;
|
|
|
|
strcpy(info->fix.id, "inteldrmfb");
|
|
|
|
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
|
|
info->fbops = &intelfb_ops;
|
|
|
|
/* 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->gtt.mappable_end;
|
|
|
|
info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
|
|
info->fix.smem_len = size;
|
|
|
|
info->screen_base = (void*) 0xFE000000;
|
|
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) */
|
|
|
|
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
|
|
fb->width, fb->height,
|
|
obj->gtt_offset, obj);
|
|
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
fb_obj = obj;
|
|
|
|
return 0;
|
|
|
|
out_unpin:
|
|
i915_gem_object_unpin(obj);
|
|
out_unref:
|
|
drm_gem_object_unreference(&obj->base);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
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 = intelfb_create,
|
|
};
|
|
|
|
|
|
int intel_fbdev_init(struct drm_device *dev)
|
|
{
|
|
struct intel_fbdev *ifbdev;
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
int ret;
|
|
|
|
ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
|
|
if (!ifbdev)
|
|
return -ENOMEM;
|
|
|
|
dev_priv->fbdev = ifbdev;
|
|
ifbdev->helper.funcs = &intel_fb_helper_funcs;
|
|
|
|
ret = drm_fb_helper_init(dev, &ifbdev->helper,
|
|
INTEL_INFO(dev)->num_pipes,
|
|
INTELFB_CONN_LIMIT);
|
|
if (ret) {
|
|
kfree(ifbdev);
|
|
return ret;
|
|
}
|
|
|
|
drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void intel_fbdev_initial_config(struct drm_device *dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
|
|
/* Due to peculiar init order wrt to hpd handling this is separate. */
|
|
drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32);
|
|
}
|
|
|
|
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);
|
|
}
|