blob: 1074bc5dd418e3a33b9214969dd850d0f230464d [file] [log] [blame]
/*
* 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/screen_info.h>
#include <linux/vga_switcheroo.h>
#include <linux/console.h>
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
#include "drm_fb_helper.h"
#include "nouveau_drv.h"
#include "nouveau_drm.h"
#include "nouveau_crtc.h"
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_dma.h"
static void
nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
struct nouveau_fbdev *nfbdev = info->par;
struct drm_device *dev = nfbdev->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int ret;
if (info->state != FBINFO_STATE_RUNNING)
return;
ret = -ENODEV;
if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
mutex_trylock(&dev_priv->channel->mutex)) {
if (dev_priv->card_type < NV_50)
ret = nv04_fbcon_fillrect(info, rect);
else
if (dev_priv->card_type < NV_C0)
ret = nv50_fbcon_fillrect(info, rect);
else
ret = nvc0_fbcon_fillrect(info, rect);
mutex_unlock(&dev_priv->channel->mutex);
}
if (ret == 0)
return;
if (ret != -ENODEV)
nouveau_fbcon_gpu_lockup(info);
cfb_fillrect(info, rect);
}
static void
nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
{
struct nouveau_fbdev *nfbdev = info->par;
struct drm_device *dev = nfbdev->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int ret;
if (info->state != FBINFO_STATE_RUNNING)
return;
ret = -ENODEV;
if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
mutex_trylock(&dev_priv->channel->mutex)) {
if (dev_priv->card_type < NV_50)
ret = nv04_fbcon_copyarea(info, image);
else
if (dev_priv->card_type < NV_C0)
ret = nv50_fbcon_copyarea(info, image);
else
ret = nvc0_fbcon_copyarea(info, image);
mutex_unlock(&dev_priv->channel->mutex);
}
if (ret == 0)
return;
if (ret != -ENODEV)
nouveau_fbcon_gpu_lockup(info);
cfb_copyarea(info, image);
}
static void
nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct nouveau_fbdev *nfbdev = info->par;
struct drm_device *dev = nfbdev->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int ret;
if (info->state != FBINFO_STATE_RUNNING)
return;
ret = -ENODEV;
if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
mutex_trylock(&dev_priv->channel->mutex)) {
if (dev_priv->card_type < NV_50)
ret = nv04_fbcon_imageblit(info, image);
else
if (dev_priv->card_type < NV_C0)
ret = nv50_fbcon_imageblit(info, image);
else
ret = nvc0_fbcon_imageblit(info, image);
mutex_unlock(&dev_priv->channel->mutex);
}
if (ret == 0)
return;
if (ret != -ENODEV)
nouveau_fbcon_gpu_lockup(info);
cfb_imageblit(info, image);
}
static int
nouveau_fbcon_sync(struct fb_info *info)
{
struct nouveau_fbdev *nfbdev = info->par;
struct drm_device *dev = nfbdev->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = dev_priv->channel;
int ret;
if (!chan || !chan->accel_done || in_interrupt() ||
info->state != FBINFO_STATE_RUNNING ||
info->flags & FBINFO_HWACCEL_DISABLED)
return 0;
if (!mutex_trylock(&chan->mutex))
return 0;
ret = nouveau_channel_idle(chan);
mutex_unlock(&chan->mutex);
if (ret) {
nouveau_fbcon_gpu_lockup(info);
return 0;
}
chan->accel_done = false;
return 0;
}
static struct fb_ops nouveau_fbcon_ops = {
.owner = THIS_MODULE,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_fillrect = nouveau_fbcon_fillrect,
.fb_copyarea = nouveau_fbcon_copyarea,
.fb_imageblit = nouveau_fbcon_imageblit,
.fb_sync = nouveau_fbcon_sync,
.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 struct fb_ops nouveau_fbcon_sw_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 void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno)
{
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
nv_crtc->lut.r[regno] = red;
nv_crtc->lut.g[regno] = green;
nv_crtc->lut.b[regno] = blue;
}
static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, int regno)
{
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
*red = nv_crtc->lut.r[regno];
*green = nv_crtc->lut.g[regno];
*blue = nv_crtc->lut.b[regno];
}
static void
nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
{
struct fb_info *info = nfbdev->helper.fbdev;
struct fb_fillrect rect;
/* Clear the entire fbcon. The drm will program every connector
* with it's preferred mode. If the sizes differ, one display will
* quite likely have garbage around the console.
*/
rect.dx = rect.dy = 0;
rect.width = info->var.xres_virtual;
rect.height = info->var.yres_virtual;
rect.color = 0;
rect.rop = ROP_COPY;
info->fbops->fb_fillrect(info, &rect);
}
static int
nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = nfbdev->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct nouveau_framebuffer *nouveau_fb;
struct nouveau_channel *chan;
struct nouveau_bo *nvbo;
struct drm_mode_fb_cmd2 mode_cmd;
struct pci_dev *pdev = dev->pdev;
struct device *device = &pdev->dev;
int size, ret;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = roundup(size, PAGE_SIZE);
ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
0, 0x0000, &nvbo);
if (ret) {
NV_ERROR(dev, "failed to allocate framebuffer\n");
goto out;
}
ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
if (ret) {
NV_ERROR(dev, "failed to pin fb: %d\n", ret);
nouveau_bo_ref(NULL, &nvbo);
goto out;
}
ret = nouveau_bo_map(nvbo);
if (ret) {
NV_ERROR(dev, "failed to map fb: %d\n", ret);
nouveau_bo_unpin(nvbo);
nouveau_bo_ref(NULL, &nvbo);
goto out;
}
chan = nouveau_nofbaccel ? NULL : dev_priv->channel;
if (chan && dev_priv->card_type >= NV_50) {
ret = nouveau_bo_vma_add(nvbo, chan->vm, &nfbdev->nouveau_fb.vma);
if (ret) {
NV_ERROR(dev, "failed to map fb into chan: %d\n", ret);
chan = NULL;
}
}
mutex_lock(&dev->struct_mutex);
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unref;
}
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unref;
}
info->par = nfbdev;
nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
nouveau_fb = &nfbdev->nouveau_fb;
fb = &nouveau_fb->base;
/* setup helper */
nfbdev->helper.fb = fb;
nfbdev->helper.fbdev = info;
strcpy(info->fix.id, "nouveaufb");
if (nouveau_nofbaccel)
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
else
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_IMAGEBLIT;
info->flags |= FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &nouveau_fbcon_sw_ops;
info->fix.smem_start = nvbo->bo.mem.bus.base +
nvbo->bo.mem.bus.offset;
info->fix.smem_len = size;
info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
info->screen_size = size;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
/* Set aperture base/size for vesafb takeover */
info->apertures = dev_priv->apertures;
if (!info->apertures) {
ret = -ENOMEM;
goto out_unref;
}
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
mutex_unlock(&dev->struct_mutex);
if (dev_priv->channel && !nouveau_nofbaccel) {
ret = -ENODEV;
if (dev_priv->card_type < NV_50)
ret = nv04_fbcon_accel_init(info);
else
if (dev_priv->card_type < NV_C0)
ret = nv50_fbcon_accel_init(info);
else
ret = nvc0_fbcon_accel_init(info);
if (ret == 0)
info->fbops = &nouveau_fbcon_ops;
}
nouveau_fbcon_zfill(dev, nfbdev);
/* To allow resizeing without swapping buffers */
NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
nouveau_fb->base.width,
nouveau_fb->base.height,
nvbo->bo.offset, nvbo);
vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_unref:
mutex_unlock(&dev->struct_mutex);
out:
return ret;
}
static int
nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
int new_fb = 0;
int ret;
if (!helper->fb) {
ret = nouveau_fbcon_create(nfbdev, sizes);
if (ret)
return ret;
new_fb = 1;
}
return new_fb;
}
void
nouveau_fbcon_output_poll_changed(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
}
static int
nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
{
struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
struct fb_info *info;
if (nfbdev->helper.fbdev) {
info = nfbdev->helper.fbdev;
unregister_framebuffer(info);
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
if (nouveau_fb->nvbo) {
nouveau_bo_unmap(nouveau_fb->nvbo);
nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
nouveau_fb->nvbo = NULL;
}
drm_fb_helper_fini(&nfbdev->helper);
drm_framebuffer_cleanup(&nouveau_fb->base);
return 0;
}
void nouveau_fbcon_gpu_lockup(struct fb_info *info)
{
struct nouveau_fbdev *nfbdev = info->par;
struct drm_device *dev = nfbdev->dev;
NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
info->flags |= FBINFO_HWACCEL_DISABLED;
}
static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
.gamma_set = nouveau_fbcon_gamma_set,
.gamma_get = nouveau_fbcon_gamma_get,
.fb_probe = nouveau_fbcon_find_or_create_single,
};
int nouveau_fbcon_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fbdev *nfbdev;
int preferred_bpp;
int ret;
nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
if (!nfbdev)
return -ENOMEM;
nfbdev->dev = dev;
dev_priv->nfbdev = nfbdev;
nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
ret = drm_fb_helper_init(dev, &nfbdev->helper,
dev->mode_config.num_crtc, 4);
if (ret) {
kfree(nfbdev);
return ret;
}
drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
if (dev_priv->vram_size <= 32 * 1024 * 1024)
preferred_bpp = 8;
else if (dev_priv->vram_size <= 64 * 1024 * 1024)
preferred_bpp = 16;
else
preferred_bpp = 32;
drm_fb_helper_initial_config(&nfbdev->helper, preferred_bpp);
return 0;
}
void nouveau_fbcon_fini(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
if (!dev_priv->nfbdev)
return;
nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
kfree(dev_priv->nfbdev);
dev_priv->nfbdev = NULL;
}
void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
}
void nouveau_fbcon_restore_accel(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
}
void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
console_lock();
if (state == 0)
nouveau_fbcon_save_disable_accel(dev);
fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
if (state == 1)
nouveau_fbcon_restore_accel(dev);
console_unlock();
}
void nouveau_fbcon_zfill_all(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
nouveau_fbcon_zfill(dev, dev_priv->nfbdev);
}