![Thomas Hellstrom](/assets/img/avatar_default.png)
It makes more sense to have all the buffer object related code in a single file rather than splitting it up between the resource code and buffer object pinning utilities. Place all buffer object related code in vmwgfx_bo.c. Fix up headers and export resource functionality when needed in the buffer object code. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com>
854 lines
20 KiB
C
854 lines
20 KiB
C
/**************************************************************************
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*
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* Copyright © 2007 David Airlie
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* Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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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
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include <linux/export.h>
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#include <drm/drmP.h>
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#include "vmwgfx_drv.h"
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#include "vmwgfx_kms.h"
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#include <drm/ttm/ttm_placement.h>
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#define VMW_DIRTY_DELAY (HZ / 30)
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struct vmw_fb_par {
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struct vmw_private *vmw_priv;
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void *vmalloc;
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struct mutex bo_mutex;
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struct vmw_buffer_object *vmw_bo;
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unsigned bo_size;
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struct drm_framebuffer *set_fb;
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struct drm_display_mode *set_mode;
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u32 fb_x;
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u32 fb_y;
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bool bo_iowrite;
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u32 pseudo_palette[17];
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unsigned max_width;
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unsigned max_height;
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struct {
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spinlock_t lock;
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bool active;
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unsigned x1;
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unsigned y1;
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unsigned x2;
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unsigned y2;
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} dirty;
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struct drm_crtc *crtc;
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struct drm_connector *con;
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struct delayed_work local_work;
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};
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static int vmw_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
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unsigned blue, unsigned transp,
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struct fb_info *info)
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{
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struct vmw_fb_par *par = info->par;
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u32 *pal = par->pseudo_palette;
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if (regno > 15) {
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DRM_ERROR("Bad regno %u.\n", regno);
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return 1;
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}
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switch (par->set_fb->format->depth) {
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case 24:
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case 32:
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pal[regno] = ((red & 0xff00) << 8) |
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(green & 0xff00) |
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((blue & 0xff00) >> 8);
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break;
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default:
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DRM_ERROR("Bad depth %u, bpp %u.\n",
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par->set_fb->format->depth,
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par->set_fb->format->cpp[0] * 8);
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return 1;
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}
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return 0;
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}
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static int vmw_fb_check_var(struct fb_var_screeninfo *var,
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struct fb_info *info)
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{
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int depth = var->bits_per_pixel;
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struct vmw_fb_par *par = info->par;
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struct vmw_private *vmw_priv = par->vmw_priv;
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switch (var->bits_per_pixel) {
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case 32:
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depth = (var->transp.length > 0) ? 32 : 24;
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break;
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default:
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DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel);
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return -EINVAL;
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}
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switch (depth) {
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case 24:
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var->red.offset = 16;
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var->green.offset = 8;
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var->blue.offset = 0;
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var->red.length = 8;
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var->green.length = 8;
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var->blue.length = 8;
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var->transp.length = 0;
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var->transp.offset = 0;
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break;
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case 32:
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var->red.offset = 16;
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var->green.offset = 8;
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var->blue.offset = 0;
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var->red.length = 8;
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var->green.length = 8;
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var->blue.length = 8;
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var->transp.length = 8;
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var->transp.offset = 24;
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break;
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default:
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DRM_ERROR("Bad depth %u.\n", depth);
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return -EINVAL;
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}
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if ((var->xoffset + var->xres) > par->max_width ||
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(var->yoffset + var->yres) > par->max_height) {
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DRM_ERROR("Requested geom can not fit in framebuffer\n");
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return -EINVAL;
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}
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if (!vmw_kms_validate_mode_vram(vmw_priv,
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var->xres * var->bits_per_pixel/8,
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var->yoffset + var->yres)) {
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DRM_ERROR("Requested geom can not fit in framebuffer\n");
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return -EINVAL;
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}
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return 0;
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}
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static int vmw_fb_blank(int blank, struct fb_info *info)
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{
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return 0;
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}
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/**
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* vmw_fb_dirty_flush - flush dirty regions to the kms framebuffer
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*
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* @work: The struct work_struct associated with this task.
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*
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* This function flushes the dirty regions of the vmalloc framebuffer to the
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* kms framebuffer, and if the kms framebuffer is visible, also updated the
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* corresponding displays. Note that this function runs even if the kms
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* framebuffer is not bound to a crtc and thus not visible, but it's turned
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* off during hibernation using the par->dirty.active bool.
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*/
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static void vmw_fb_dirty_flush(struct work_struct *work)
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{
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struct vmw_fb_par *par = container_of(work, struct vmw_fb_par,
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local_work.work);
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struct vmw_private *vmw_priv = par->vmw_priv;
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struct fb_info *info = vmw_priv->fb_info;
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unsigned long irq_flags;
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s32 dst_x1, dst_x2, dst_y1, dst_y2, w = 0, h = 0;
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u32 cpp, max_x, max_y;
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struct drm_clip_rect clip;
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struct drm_framebuffer *cur_fb;
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u8 *src_ptr, *dst_ptr;
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struct vmw_buffer_object *vbo = par->vmw_bo;
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void *virtual;
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if (!READ_ONCE(par->dirty.active))
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return;
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mutex_lock(&par->bo_mutex);
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cur_fb = par->set_fb;
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if (!cur_fb)
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goto out_unlock;
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(void) ttm_read_lock(&vmw_priv->reservation_sem, false);
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(void) ttm_bo_reserve(&vbo->base, false, false, NULL);
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virtual = vmw_bo_map_and_cache(vbo);
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if (!virtual)
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goto out_unreserve;
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spin_lock_irqsave(&par->dirty.lock, irq_flags);
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if (!par->dirty.active) {
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spin_unlock_irqrestore(&par->dirty.lock, irq_flags);
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goto out_unreserve;
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}
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/*
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* Handle panning when copying from vmalloc to framebuffer.
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* Clip dirty area to framebuffer.
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*/
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cpp = cur_fb->format->cpp[0];
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max_x = par->fb_x + cur_fb->width;
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max_y = par->fb_y + cur_fb->height;
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dst_x1 = par->dirty.x1 - par->fb_x;
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dst_y1 = par->dirty.y1 - par->fb_y;
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dst_x1 = max_t(s32, dst_x1, 0);
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dst_y1 = max_t(s32, dst_y1, 0);
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dst_x2 = par->dirty.x2 - par->fb_x;
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dst_y2 = par->dirty.y2 - par->fb_y;
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dst_x2 = min_t(s32, dst_x2, max_x);
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dst_y2 = min_t(s32, dst_y2, max_y);
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w = dst_x2 - dst_x1;
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h = dst_y2 - dst_y1;
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w = max_t(s32, 0, w);
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h = max_t(s32, 0, h);
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par->dirty.x1 = par->dirty.x2 = 0;
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par->dirty.y1 = par->dirty.y2 = 0;
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spin_unlock_irqrestore(&par->dirty.lock, irq_flags);
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if (w && h) {
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dst_ptr = (u8 *)virtual +
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(dst_y1 * par->set_fb->pitches[0] + dst_x1 * cpp);
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src_ptr = (u8 *)par->vmalloc +
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((dst_y1 + par->fb_y) * info->fix.line_length +
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(dst_x1 + par->fb_x) * cpp);
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while (h-- > 0) {
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memcpy(dst_ptr, src_ptr, w*cpp);
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dst_ptr += par->set_fb->pitches[0];
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src_ptr += info->fix.line_length;
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}
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clip.x1 = dst_x1;
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clip.x2 = dst_x2;
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clip.y1 = dst_y1;
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clip.y2 = dst_y2;
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}
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out_unreserve:
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ttm_bo_unreserve(&vbo->base);
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ttm_read_unlock(&vmw_priv->reservation_sem);
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if (w && h) {
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WARN_ON_ONCE(par->set_fb->funcs->dirty(cur_fb, NULL, 0, 0,
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&clip, 1));
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vmw_fifo_flush(vmw_priv, false);
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}
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out_unlock:
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mutex_unlock(&par->bo_mutex);
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}
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static void vmw_fb_dirty_mark(struct vmw_fb_par *par,
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unsigned x1, unsigned y1,
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unsigned width, unsigned height)
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{
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unsigned long flags;
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unsigned x2 = x1 + width;
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unsigned y2 = y1 + height;
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spin_lock_irqsave(&par->dirty.lock, flags);
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if (par->dirty.x1 == par->dirty.x2) {
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par->dirty.x1 = x1;
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par->dirty.y1 = y1;
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par->dirty.x2 = x2;
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par->dirty.y2 = y2;
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/* if we are active start the dirty work
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* we share the work with the defio system */
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if (par->dirty.active)
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schedule_delayed_work(&par->local_work,
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VMW_DIRTY_DELAY);
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} else {
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if (x1 < par->dirty.x1)
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par->dirty.x1 = x1;
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if (y1 < par->dirty.y1)
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par->dirty.y1 = y1;
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if (x2 > par->dirty.x2)
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par->dirty.x2 = x2;
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if (y2 > par->dirty.y2)
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par->dirty.y2 = y2;
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}
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spin_unlock_irqrestore(&par->dirty.lock, flags);
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}
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static int vmw_fb_pan_display(struct fb_var_screeninfo *var,
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struct fb_info *info)
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{
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struct vmw_fb_par *par = info->par;
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if ((var->xoffset + var->xres) > var->xres_virtual ||
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(var->yoffset + var->yres) > var->yres_virtual) {
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DRM_ERROR("Requested panning can not fit in framebuffer\n");
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return -EINVAL;
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}
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mutex_lock(&par->bo_mutex);
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par->fb_x = var->xoffset;
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par->fb_y = var->yoffset;
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if (par->set_fb)
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vmw_fb_dirty_mark(par, par->fb_x, par->fb_y, par->set_fb->width,
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par->set_fb->height);
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mutex_unlock(&par->bo_mutex);
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return 0;
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}
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static void vmw_deferred_io(struct fb_info *info,
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struct list_head *pagelist)
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{
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struct vmw_fb_par *par = info->par;
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unsigned long start, end, min, max;
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unsigned long flags;
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struct page *page;
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int y1, y2;
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min = ULONG_MAX;
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max = 0;
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list_for_each_entry(page, pagelist, lru) {
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start = page->index << PAGE_SHIFT;
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end = start + PAGE_SIZE - 1;
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min = min(min, start);
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max = max(max, end);
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}
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if (min < max) {
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y1 = min / info->fix.line_length;
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y2 = (max / info->fix.line_length) + 1;
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spin_lock_irqsave(&par->dirty.lock, flags);
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par->dirty.x1 = 0;
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par->dirty.y1 = y1;
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par->dirty.x2 = info->var.xres;
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par->dirty.y2 = y2;
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spin_unlock_irqrestore(&par->dirty.lock, flags);
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/*
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* Since we've already waited on this work once, try to
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* execute asap.
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*/
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cancel_delayed_work(&par->local_work);
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schedule_delayed_work(&par->local_work, 0);
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}
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};
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static struct fb_deferred_io vmw_defio = {
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.delay = VMW_DIRTY_DELAY,
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.deferred_io = vmw_deferred_io,
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};
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/*
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* Draw code
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*/
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static void vmw_fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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{
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cfb_fillrect(info, rect);
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vmw_fb_dirty_mark(info->par, rect->dx, rect->dy,
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rect->width, rect->height);
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}
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static void vmw_fb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
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{
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cfb_copyarea(info, region);
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vmw_fb_dirty_mark(info->par, region->dx, region->dy,
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region->width, region->height);
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}
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static void vmw_fb_imageblit(struct fb_info *info, const struct fb_image *image)
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{
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cfb_imageblit(info, image);
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vmw_fb_dirty_mark(info->par, image->dx, image->dy,
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image->width, image->height);
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}
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/*
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* Bring up code
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*/
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static int vmw_fb_create_bo(struct vmw_private *vmw_priv,
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size_t size, struct vmw_buffer_object **out)
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{
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struct vmw_buffer_object *vmw_bo;
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int ret;
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(void) ttm_write_lock(&vmw_priv->reservation_sem, false);
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vmw_bo = kmalloc(sizeof(*vmw_bo), GFP_KERNEL);
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if (!vmw_bo) {
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ret = -ENOMEM;
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goto err_unlock;
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}
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ret = vmw_bo_init(vmw_priv, vmw_bo, size,
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&vmw_sys_placement,
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false,
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&vmw_bo_bo_free);
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if (unlikely(ret != 0))
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goto err_unlock; /* init frees the buffer on failure */
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*out = vmw_bo;
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ttm_write_unlock(&vmw_priv->reservation_sem);
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return 0;
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err_unlock:
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ttm_write_unlock(&vmw_priv->reservation_sem);
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return ret;
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}
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static int vmw_fb_compute_depth(struct fb_var_screeninfo *var,
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int *depth)
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{
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switch (var->bits_per_pixel) {
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case 32:
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*depth = (var->transp.length > 0) ? 32 : 24;
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break;
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default:
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DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel);
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return -EINVAL;
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}
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return 0;
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}
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static int vmwgfx_set_config_internal(struct drm_mode_set *set)
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{
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struct drm_crtc *crtc = set->crtc;
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struct drm_modeset_acquire_ctx ctx;
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int ret;
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drm_modeset_acquire_init(&ctx, 0);
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restart:
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ret = crtc->funcs->set_config(set, &ctx);
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if (ret == -EDEADLK) {
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drm_modeset_backoff(&ctx);
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goto restart;
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}
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drm_modeset_drop_locks(&ctx);
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drm_modeset_acquire_fini(&ctx);
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return ret;
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}
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static int vmw_fb_kms_detach(struct vmw_fb_par *par,
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bool detach_bo,
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bool unref_bo)
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{
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struct drm_framebuffer *cur_fb = par->set_fb;
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int ret;
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/* Detach the KMS framebuffer from crtcs */
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if (par->set_mode) {
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struct drm_mode_set set;
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set.crtc = par->crtc;
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set.x = 0;
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set.y = 0;
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set.mode = NULL;
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set.fb = NULL;
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set.num_connectors = 0;
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set.connectors = &par->con;
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ret = vmwgfx_set_config_internal(&set);
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if (ret) {
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DRM_ERROR("Could not unset a mode.\n");
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return ret;
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}
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drm_mode_destroy(par->vmw_priv->dev, par->set_mode);
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par->set_mode = NULL;
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}
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if (cur_fb) {
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drm_framebuffer_put(cur_fb);
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par->set_fb = NULL;
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}
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if (par->vmw_bo && detach_bo && unref_bo)
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vmw_bo_unreference(&par->vmw_bo);
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return 0;
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}
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static int vmw_fb_kms_framebuffer(struct fb_info *info)
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{
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struct drm_mode_fb_cmd2 mode_cmd;
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struct vmw_fb_par *par = info->par;
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struct fb_var_screeninfo *var = &info->var;
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struct drm_framebuffer *cur_fb;
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struct vmw_framebuffer *vfb;
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int ret = 0, depth;
|
|
size_t new_bo_size;
|
|
|
|
ret = vmw_fb_compute_depth(var, &depth);
|
|
if (ret)
|
|
return ret;
|
|
|
|
mode_cmd.width = var->xres;
|
|
mode_cmd.height = var->yres;
|
|
mode_cmd.pitches[0] = ((var->bits_per_pixel + 7) / 8) * mode_cmd.width;
|
|
mode_cmd.pixel_format =
|
|
drm_mode_legacy_fb_format(var->bits_per_pixel, depth);
|
|
|
|
cur_fb = par->set_fb;
|
|
if (cur_fb && cur_fb->width == mode_cmd.width &&
|
|
cur_fb->height == mode_cmd.height &&
|
|
cur_fb->format->format == mode_cmd.pixel_format &&
|
|
cur_fb->pitches[0] == mode_cmd.pitches[0])
|
|
return 0;
|
|
|
|
/* Need new buffer object ? */
|
|
new_bo_size = (size_t) mode_cmd.pitches[0] * (size_t) mode_cmd.height;
|
|
ret = vmw_fb_kms_detach(par,
|
|
par->bo_size < new_bo_size ||
|
|
par->bo_size > 2*new_bo_size,
|
|
true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!par->vmw_bo) {
|
|
ret = vmw_fb_create_bo(par->vmw_priv, new_bo_size,
|
|
&par->vmw_bo);
|
|
if (ret) {
|
|
DRM_ERROR("Failed creating a buffer object for "
|
|
"fbdev.\n");
|
|
return ret;
|
|
}
|
|
par->bo_size = new_bo_size;
|
|
}
|
|
|
|
vfb = vmw_kms_new_framebuffer(par->vmw_priv, par->vmw_bo, NULL,
|
|
true, &mode_cmd);
|
|
if (IS_ERR(vfb))
|
|
return PTR_ERR(vfb);
|
|
|
|
par->set_fb = &vfb->base;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_fb_set_par(struct fb_info *info)
|
|
{
|
|
struct vmw_fb_par *par = info->par;
|
|
struct vmw_private *vmw_priv = par->vmw_priv;
|
|
struct drm_mode_set set;
|
|
struct fb_var_screeninfo *var = &info->var;
|
|
struct drm_display_mode new_mode = { DRM_MODE("fb_mode",
|
|
DRM_MODE_TYPE_DRIVER,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
|
|
};
|
|
struct drm_display_mode *old_mode;
|
|
struct drm_display_mode *mode;
|
|
int ret;
|
|
|
|
old_mode = par->set_mode;
|
|
mode = drm_mode_duplicate(vmw_priv->dev, &new_mode);
|
|
if (!mode) {
|
|
DRM_ERROR("Could not create new fb mode.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mode->hdisplay = var->xres;
|
|
mode->vdisplay = var->yres;
|
|
vmw_guess_mode_timing(mode);
|
|
|
|
if (old_mode && drm_mode_equal(old_mode, mode)) {
|
|
drm_mode_destroy(vmw_priv->dev, mode);
|
|
mode = old_mode;
|
|
old_mode = NULL;
|
|
} else if (!vmw_kms_validate_mode_vram(vmw_priv,
|
|
mode->hdisplay *
|
|
DIV_ROUND_UP(var->bits_per_pixel, 8),
|
|
mode->vdisplay)) {
|
|
drm_mode_destroy(vmw_priv->dev, mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&par->bo_mutex);
|
|
ret = vmw_fb_kms_framebuffer(info);
|
|
if (ret)
|
|
goto out_unlock;
|
|
|
|
par->fb_x = var->xoffset;
|
|
par->fb_y = var->yoffset;
|
|
|
|
set.crtc = par->crtc;
|
|
set.x = 0;
|
|
set.y = 0;
|
|
set.mode = mode;
|
|
set.fb = par->set_fb;
|
|
set.num_connectors = 1;
|
|
set.connectors = &par->con;
|
|
|
|
ret = vmwgfx_set_config_internal(&set);
|
|
if (ret)
|
|
goto out_unlock;
|
|
|
|
vmw_fb_dirty_mark(par, par->fb_x, par->fb_y,
|
|
par->set_fb->width, par->set_fb->height);
|
|
|
|
/* If there already was stuff dirty we wont
|
|
* schedule a new work, so lets do it now */
|
|
|
|
schedule_delayed_work(&par->local_work, 0);
|
|
|
|
out_unlock:
|
|
if (old_mode)
|
|
drm_mode_destroy(vmw_priv->dev, old_mode);
|
|
par->set_mode = mode;
|
|
|
|
mutex_unlock(&par->bo_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static struct fb_ops vmw_fb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = vmw_fb_check_var,
|
|
.fb_set_par = vmw_fb_set_par,
|
|
.fb_setcolreg = vmw_fb_setcolreg,
|
|
.fb_fillrect = vmw_fb_fillrect,
|
|
.fb_copyarea = vmw_fb_copyarea,
|
|
.fb_imageblit = vmw_fb_imageblit,
|
|
.fb_pan_display = vmw_fb_pan_display,
|
|
.fb_blank = vmw_fb_blank,
|
|
};
|
|
|
|
int vmw_fb_init(struct vmw_private *vmw_priv)
|
|
{
|
|
struct device *device = &vmw_priv->dev->pdev->dev;
|
|
struct vmw_fb_par *par;
|
|
struct fb_info *info;
|
|
unsigned fb_width, fb_height;
|
|
unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size;
|
|
struct drm_display_mode *init_mode;
|
|
int ret;
|
|
|
|
fb_bpp = 32;
|
|
fb_depth = 24;
|
|
|
|
/* XXX As shouldn't these be as well. */
|
|
fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
|
|
fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
|
|
|
|
fb_pitch = fb_width * fb_bpp / 8;
|
|
fb_size = fb_pitch * fb_height;
|
|
fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET);
|
|
|
|
info = framebuffer_alloc(sizeof(*par), device);
|
|
if (!info)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Par
|
|
*/
|
|
vmw_priv->fb_info = info;
|
|
par = info->par;
|
|
memset(par, 0, sizeof(*par));
|
|
INIT_DELAYED_WORK(&par->local_work, &vmw_fb_dirty_flush);
|
|
par->vmw_priv = vmw_priv;
|
|
par->vmalloc = NULL;
|
|
par->max_width = fb_width;
|
|
par->max_height = fb_height;
|
|
|
|
ret = vmw_kms_fbdev_init_data(vmw_priv, 0, par->max_width,
|
|
par->max_height, &par->con,
|
|
&par->crtc, &init_mode);
|
|
if (ret)
|
|
goto err_kms;
|
|
|
|
info->var.xres = init_mode->hdisplay;
|
|
info->var.yres = init_mode->vdisplay;
|
|
|
|
/*
|
|
* Create buffers and alloc memory
|
|
*/
|
|
par->vmalloc = vzalloc(fb_size);
|
|
if (unlikely(par->vmalloc == NULL)) {
|
|
ret = -ENOMEM;
|
|
goto err_free;
|
|
}
|
|
|
|
/*
|
|
* Fixed and var
|
|
*/
|
|
strcpy(info->fix.id, "svgadrmfb");
|
|
info->fix.type = FB_TYPE_PACKED_PIXELS;
|
|
info->fix.visual = FB_VISUAL_TRUECOLOR;
|
|
info->fix.type_aux = 0;
|
|
info->fix.xpanstep = 1; /* doing it in hw */
|
|
info->fix.ypanstep = 1; /* doing it in hw */
|
|
info->fix.ywrapstep = 0;
|
|
info->fix.accel = FB_ACCEL_NONE;
|
|
info->fix.line_length = fb_pitch;
|
|
|
|
info->fix.smem_start = 0;
|
|
info->fix.smem_len = fb_size;
|
|
|
|
info->pseudo_palette = par->pseudo_palette;
|
|
info->screen_base = (char __iomem *)par->vmalloc;
|
|
info->screen_size = fb_size;
|
|
|
|
info->fbops = &vmw_fb_ops;
|
|
|
|
/* 24 depth per default */
|
|
info->var.red.offset = 16;
|
|
info->var.green.offset = 8;
|
|
info->var.blue.offset = 0;
|
|
info->var.red.length = 8;
|
|
info->var.green.length = 8;
|
|
info->var.blue.length = 8;
|
|
info->var.transp.offset = 0;
|
|
info->var.transp.length = 0;
|
|
|
|
info->var.xres_virtual = fb_width;
|
|
info->var.yres_virtual = fb_height;
|
|
info->var.bits_per_pixel = fb_bpp;
|
|
info->var.xoffset = 0;
|
|
info->var.yoffset = 0;
|
|
info->var.activate = FB_ACTIVATE_NOW;
|
|
info->var.height = -1;
|
|
info->var.width = -1;
|
|
|
|
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
|
|
info->apertures = alloc_apertures(1);
|
|
if (!info->apertures) {
|
|
ret = -ENOMEM;
|
|
goto err_aper;
|
|
}
|
|
info->apertures->ranges[0].base = vmw_priv->vram_start;
|
|
info->apertures->ranges[0].size = vmw_priv->vram_size;
|
|
|
|
/*
|
|
* Dirty & Deferred IO
|
|
*/
|
|
par->dirty.x1 = par->dirty.x2 = 0;
|
|
par->dirty.y1 = par->dirty.y2 = 0;
|
|
par->dirty.active = true;
|
|
spin_lock_init(&par->dirty.lock);
|
|
mutex_init(&par->bo_mutex);
|
|
info->fbdefio = &vmw_defio;
|
|
fb_deferred_io_init(info);
|
|
|
|
ret = register_framebuffer(info);
|
|
if (unlikely(ret != 0))
|
|
goto err_defio;
|
|
|
|
vmw_fb_set_par(info);
|
|
|
|
return 0;
|
|
|
|
err_defio:
|
|
fb_deferred_io_cleanup(info);
|
|
err_aper:
|
|
err_free:
|
|
vfree(par->vmalloc);
|
|
err_kms:
|
|
framebuffer_release(info);
|
|
vmw_priv->fb_info = NULL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int vmw_fb_close(struct vmw_private *vmw_priv)
|
|
{
|
|
struct fb_info *info;
|
|
struct vmw_fb_par *par;
|
|
|
|
if (!vmw_priv->fb_info)
|
|
return 0;
|
|
|
|
info = vmw_priv->fb_info;
|
|
par = info->par;
|
|
|
|
/* ??? order */
|
|
fb_deferred_io_cleanup(info);
|
|
cancel_delayed_work_sync(&par->local_work);
|
|
unregister_framebuffer(info);
|
|
|
|
mutex_lock(&par->bo_mutex);
|
|
(void) vmw_fb_kms_detach(par, true, true);
|
|
mutex_unlock(&par->bo_mutex);
|
|
|
|
vfree(par->vmalloc);
|
|
framebuffer_release(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vmw_fb_off(struct vmw_private *vmw_priv)
|
|
{
|
|
struct fb_info *info;
|
|
struct vmw_fb_par *par;
|
|
unsigned long flags;
|
|
|
|
if (!vmw_priv->fb_info)
|
|
return -EINVAL;
|
|
|
|
info = vmw_priv->fb_info;
|
|
par = info->par;
|
|
|
|
spin_lock_irqsave(&par->dirty.lock, flags);
|
|
par->dirty.active = false;
|
|
spin_unlock_irqrestore(&par->dirty.lock, flags);
|
|
|
|
flush_delayed_work(&info->deferred_work);
|
|
flush_delayed_work(&par->local_work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vmw_fb_on(struct vmw_private *vmw_priv)
|
|
{
|
|
struct fb_info *info;
|
|
struct vmw_fb_par *par;
|
|
unsigned long flags;
|
|
|
|
if (!vmw_priv->fb_info)
|
|
return -EINVAL;
|
|
|
|
info = vmw_priv->fb_info;
|
|
par = info->par;
|
|
|
|
spin_lock_irqsave(&par->dirty.lock, flags);
|
|
par->dirty.active = true;
|
|
spin_unlock_irqrestore(&par->dirty.lock, flags);
|
|
|
|
/*
|
|
* Need to reschedule a dirty update, because otherwise that's
|
|
* only done in dirty_mark() if the previous coalesced
|
|
* dirty region was empty.
|
|
*/
|
|
schedule_delayed_work(&par->local_work, 0);
|
|
|
|
return 0;
|
|
}
|