![Francisco Jerez](/assets/img/avatar_default.png)
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
439 lines
12 KiB
C
439 lines
12 KiB
C
/*
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* Copyright © 2007 David Airlie
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* David Airlie
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/sysrq.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/screen_info.h>
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#include <linux/vga_switcheroo.h>
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#include "drmP.h"
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#include "drm.h"
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#include "drm_crtc.h"
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#include "drm_crtc_helper.h"
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#include "drm_fb_helper.h"
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#include "nouveau_drv.h"
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#include "nouveau_drm.h"
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#include "nouveau_crtc.h"
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#include "nouveau_fb.h"
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#include "nouveau_fbcon.h"
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#include "nouveau_dma.h"
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static int
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nouveau_fbcon_sync(struct fb_info *info)
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{
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struct nouveau_fbdev *nfbdev = info->par;
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struct drm_device *dev = nfbdev->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_channel *chan = dev_priv->channel;
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int ret, i;
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if (!chan || !chan->accel_done ||
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info->state != FBINFO_STATE_RUNNING ||
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info->flags & FBINFO_HWACCEL_DISABLED)
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return 0;
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if (RING_SPACE(chan, 4)) {
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nouveau_fbcon_gpu_lockup(info);
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return 0;
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}
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BEGIN_RING(chan, 0, 0x0104, 1);
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OUT_RING(chan, 0);
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BEGIN_RING(chan, 0, 0x0100, 1);
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OUT_RING(chan, 0);
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nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
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FIRE_RING(chan);
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ret = -EBUSY;
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for (i = 0; i < 100000; i++) {
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if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) {
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ret = 0;
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break;
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}
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DRM_UDELAY(1);
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}
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if (ret) {
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nouveau_fbcon_gpu_lockup(info);
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return 0;
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}
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chan->accel_done = false;
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return 0;
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}
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static struct fb_ops nouveau_fbcon_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = drm_fb_helper_check_var,
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.fb_set_par = drm_fb_helper_set_par,
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.fb_fillrect = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_sync = nouveau_fbcon_sync,
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.fb_pan_display = drm_fb_helper_pan_display,
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.fb_blank = drm_fb_helper_blank,
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.fb_setcmap = drm_fb_helper_setcmap,
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};
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static struct fb_ops nv04_fbcon_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = drm_fb_helper_check_var,
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.fb_set_par = drm_fb_helper_set_par,
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.fb_fillrect = nv04_fbcon_fillrect,
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.fb_copyarea = nv04_fbcon_copyarea,
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.fb_imageblit = nv04_fbcon_imageblit,
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.fb_sync = nouveau_fbcon_sync,
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.fb_pan_display = drm_fb_helper_pan_display,
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.fb_blank = drm_fb_helper_blank,
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.fb_setcmap = drm_fb_helper_setcmap,
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};
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static struct fb_ops nv50_fbcon_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = drm_fb_helper_check_var,
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.fb_set_par = drm_fb_helper_set_par,
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.fb_fillrect = nv50_fbcon_fillrect,
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.fb_copyarea = nv50_fbcon_copyarea,
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.fb_imageblit = nv50_fbcon_imageblit,
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.fb_sync = nouveau_fbcon_sync,
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.fb_pan_display = drm_fb_helper_pan_display,
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.fb_blank = drm_fb_helper_blank,
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.fb_setcmap = drm_fb_helper_setcmap,
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};
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static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
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u16 blue, int regno)
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{
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struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
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nv_crtc->lut.r[regno] = red;
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nv_crtc->lut.g[regno] = green;
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nv_crtc->lut.b[regno] = blue;
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}
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static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
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u16 *blue, int regno)
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{
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struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
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*red = nv_crtc->lut.r[regno];
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*green = nv_crtc->lut.g[regno];
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*blue = nv_crtc->lut.b[regno];
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}
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static void
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nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
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{
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struct fb_info *info = nfbdev->helper.fbdev;
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struct fb_fillrect rect;
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/* Clear the entire fbcon. The drm will program every connector
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* with it's preferred mode. If the sizes differ, one display will
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* quite likely have garbage around the console.
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*/
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rect.dx = rect.dy = 0;
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rect.width = info->var.xres_virtual;
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rect.height = info->var.yres_virtual;
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rect.color = 0;
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rect.rop = ROP_COPY;
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info->fbops->fb_fillrect(info, &rect);
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}
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static int
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nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct drm_device *dev = nfbdev->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct fb_info *info;
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struct drm_framebuffer *fb;
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struct nouveau_framebuffer *nouveau_fb;
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struct nouveau_bo *nvbo;
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struct drm_mode_fb_cmd mode_cmd;
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struct pci_dev *pdev = dev->pdev;
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struct device *device = &pdev->dev;
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int size, ret;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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mode_cmd.bpp = sizes->surface_bpp;
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mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
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mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
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mode_cmd.depth = sizes->surface_depth;
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size = mode_cmd.pitch * mode_cmd.height;
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size = roundup(size, PAGE_SIZE);
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ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM,
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0, 0x0000, false, true, &nvbo);
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if (ret) {
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NV_ERROR(dev, "failed to allocate framebuffer\n");
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goto out;
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}
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ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
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if (ret) {
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NV_ERROR(dev, "failed to pin fb: %d\n", ret);
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nouveau_bo_ref(NULL, &nvbo);
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goto out;
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}
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ret = nouveau_bo_map(nvbo);
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if (ret) {
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NV_ERROR(dev, "failed to map fb: %d\n", ret);
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nouveau_bo_unpin(nvbo);
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nouveau_bo_ref(NULL, &nvbo);
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goto out;
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}
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mutex_lock(&dev->struct_mutex);
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info = framebuffer_alloc(0, device);
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if (!info) {
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ret = -ENOMEM;
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goto out_unref;
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}
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ret = fb_alloc_cmap(&info->cmap, 256, 0);
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if (ret) {
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ret = -ENOMEM;
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goto out_unref;
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}
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info->par = nfbdev;
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nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
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nouveau_fb = &nfbdev->nouveau_fb;
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fb = &nouveau_fb->base;
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/* setup helper */
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nfbdev->helper.fb = fb;
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nfbdev->helper.fbdev = info;
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strcpy(info->fix.id, "nouveaufb");
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if (nouveau_nofbaccel)
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info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
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else
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info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
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FBINFO_HWACCEL_FILLRECT |
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FBINFO_HWACCEL_IMAGEBLIT;
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info->fbops = &nouveau_fbcon_ops;
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info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset -
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dev_priv->vm_vram_base;
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info->fix.smem_len = size;
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info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
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info->screen_size = size;
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drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
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drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
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/* FIXME: we really shouldn't expose mmio space at all */
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info->fix.mmio_start = pci_resource_start(pdev, 1);
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info->fix.mmio_len = pci_resource_len(pdev, 1);
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/* Set aperture base/size for vesafb takeover */
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info->apertures = dev_priv->apertures;
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if (!info->apertures) {
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ret = -ENOMEM;
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goto out_unref;
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}
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info->pixmap.size = 64*1024;
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info->pixmap.buf_align = 8;
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info->pixmap.access_align = 32;
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info->pixmap.flags = FB_PIXMAP_SYSTEM;
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info->pixmap.scan_align = 1;
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if (dev_priv->channel && !nouveau_nofbaccel) {
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switch (dev_priv->card_type) {
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case NV_50:
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nv50_fbcon_accel_init(info);
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info->fbops = &nv50_fbcon_ops;
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break;
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default:
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nv04_fbcon_accel_init(info);
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info->fbops = &nv04_fbcon_ops;
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break;
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};
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}
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nouveau_fbcon_zfill(dev, nfbdev);
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/* To allow resizeing without swapping buffers */
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NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
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nouveau_fb->base.width,
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nouveau_fb->base.height,
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nvbo->bo.offset, nvbo);
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mutex_unlock(&dev->struct_mutex);
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vga_switcheroo_client_fb_set(dev->pdev, info);
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return 0;
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out_unref:
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mutex_unlock(&dev->struct_mutex);
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out:
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return ret;
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}
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static int
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nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
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int new_fb = 0;
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int ret;
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if (!helper->fb) {
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ret = nouveau_fbcon_create(nfbdev, sizes);
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if (ret)
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return ret;
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new_fb = 1;
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}
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return new_fb;
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}
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void
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nouveau_fbcon_output_poll_changed(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
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}
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static int
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nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
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{
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struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
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struct fb_info *info;
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if (nfbdev->helper.fbdev) {
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info = nfbdev->helper.fbdev;
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unregister_framebuffer(info);
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if (info->cmap.len)
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fb_dealloc_cmap(&info->cmap);
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framebuffer_release(info);
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}
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if (nouveau_fb->nvbo) {
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nouveau_bo_unmap(nouveau_fb->nvbo);
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drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
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nouveau_fb->nvbo = NULL;
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}
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drm_fb_helper_fini(&nfbdev->helper);
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drm_framebuffer_cleanup(&nouveau_fb->base);
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return 0;
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}
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void nouveau_fbcon_gpu_lockup(struct fb_info *info)
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{
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struct nouveau_fbdev *nfbdev = info->par;
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struct drm_device *dev = nfbdev->dev;
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NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
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info->flags |= FBINFO_HWACCEL_DISABLED;
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}
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static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
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.gamma_set = nouveau_fbcon_gamma_set,
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.gamma_get = nouveau_fbcon_gamma_get,
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.fb_probe = nouveau_fbcon_find_or_create_single,
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};
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int nouveau_fbcon_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_fbdev *nfbdev;
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int ret;
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nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
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if (!nfbdev)
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return -ENOMEM;
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nfbdev->dev = dev;
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dev_priv->nfbdev = nfbdev;
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nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
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ret = drm_fb_helper_init(dev, &nfbdev->helper,
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nv_two_heads(dev) ? 2 : 1, 4);
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if (ret) {
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kfree(nfbdev);
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return ret;
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}
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drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
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drm_fb_helper_initial_config(&nfbdev->helper, 32);
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return 0;
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}
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void nouveau_fbcon_fini(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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if (!dev_priv->nfbdev)
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return;
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nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
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kfree(dev_priv->nfbdev);
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dev_priv->nfbdev = NULL;
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}
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void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
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dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
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}
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void nouveau_fbcon_restore_accel(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
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}
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void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
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}
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void nouveau_fbcon_zfill_all(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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nouveau_fbcon_zfill(dev, dev_priv->nfbdev);
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}
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