mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 02:06:49 +07:00
23010e43b3
This is a purely cosmetic change to make changes in this area easier. And hey, it's not only clearer and typechecked, but actually shorter, too! [anholt: To clarify, this is a change to let us later make drm_i915_gem_object subclass drm_gem_object, instead of having drm_gem_object have a pointer to i915's private data] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net>
283 lines
7.3 KiB
C
283 lines
7.3 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/slab.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/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_fb_helper.h"
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#include "intel_drv.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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struct intelfb_par {
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struct drm_fb_helper helper;
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struct intel_framebuffer *intel_fb;
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struct drm_display_mode *our_mode;
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};
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static struct fb_ops intelfb_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_setcolreg = drm_fb_helper_setcolreg,
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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_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 drm_fb_helper_funcs intel_fb_helper_funcs = {
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.gamma_set = intel_crtc_fb_gamma_set,
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.gamma_get = intel_crtc_fb_gamma_get,
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};
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/**
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* Currently it is assumed that the old framebuffer is reused.
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*
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* LOCKING
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* caller should hold the mode config lock.
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*
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*/
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int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc)
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{
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struct fb_info *info;
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struct drm_framebuffer *fb;
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struct drm_display_mode *mode = crtc->desired_mode;
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fb = crtc->fb;
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if (!fb)
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return 1;
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info = fb->fbdev;
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if (!info)
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return 1;
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if (!mode)
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return 1;
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info->var.xres = mode->hdisplay;
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info->var.right_margin = mode->hsync_start - mode->hdisplay;
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info->var.hsync_len = mode->hsync_end - mode->hsync_start;
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info->var.left_margin = mode->htotal - mode->hsync_end;
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info->var.yres = mode->vdisplay;
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info->var.lower_margin = mode->vsync_start - mode->vdisplay;
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info->var.vsync_len = mode->vsync_end - mode->vsync_start;
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info->var.upper_margin = mode->vtotal - mode->vsync_end;
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info->var.pixclock = 10000000 / mode->htotal * 1000 / mode->vtotal * 100;
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/* avoid overflow */
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info->var.pixclock = info->var.pixclock * 1000 / mode->vrefresh;
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return 0;
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}
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EXPORT_SYMBOL(intelfb_resize);
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static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
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uint32_t fb_height, uint32_t surface_width,
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uint32_t surface_height,
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uint32_t surface_depth, uint32_t surface_bpp,
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struct drm_framebuffer **fb_p)
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{
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struct fb_info *info;
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struct intelfb_par *par;
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struct drm_framebuffer *fb;
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struct intel_framebuffer *intel_fb;
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struct drm_mode_fb_cmd mode_cmd;
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struct drm_gem_object *fbo = NULL;
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struct drm_i915_gem_object *obj_priv;
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struct device *device = &dev->pdev->dev;
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int size, ret, mmio_bar = IS_I9XX(dev) ? 0 : 1;
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/* we don't do packed 24bpp */
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if (surface_bpp == 24)
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surface_bpp = 32;
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mode_cmd.width = surface_width;
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mode_cmd.height = surface_height;
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mode_cmd.bpp = surface_bpp;
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mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
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mode_cmd.depth = surface_depth;
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size = mode_cmd.pitch * mode_cmd.height;
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size = ALIGN(size, PAGE_SIZE);
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fbo = drm_gem_object_alloc(dev, size);
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if (!fbo) {
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DRM_ERROR("failed to allocate framebuffer\n");
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ret = -ENOMEM;
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goto out;
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}
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obj_priv = to_intel_bo(fbo);
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mutex_lock(&dev->struct_mutex);
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ret = i915_gem_object_pin(fbo, 64*1024);
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if (ret) {
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DRM_ERROR("failed to pin fb: %d\n", ret);
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goto out_unref;
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}
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/* Flush everything out, we'll be doing GTT only from now on */
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i915_gem_object_set_to_gtt_domain(fbo, 1);
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ret = intel_framebuffer_create(dev, &mode_cmd, &fb, fbo);
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if (ret) {
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DRM_ERROR("failed to allocate fb.\n");
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goto out_unpin;
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}
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list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);
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intel_fb = to_intel_framebuffer(fb);
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*fb_p = fb;
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info = framebuffer_alloc(sizeof(struct intelfb_par), device);
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if (!info) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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par = info->par;
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par->helper.funcs = &intel_fb_helper_funcs;
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par->helper.dev = dev;
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ret = drm_fb_helper_init_crtc_count(&par->helper, 2,
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INTELFB_CONN_LIMIT);
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if (ret)
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goto out_unref;
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strcpy(info->fix.id, "inteldrmfb");
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info->flags = FBINFO_DEFAULT;
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info->fbops = &intelfb_ops;
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/* setup aperture base/size for vesafb takeover */
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info->aperture_base = dev->mode_config.fb_base;
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if (IS_I9XX(dev))
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info->aperture_size = pci_resource_len(dev->pdev, 2);
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else
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info->aperture_size = pci_resource_len(dev->pdev, 0);
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info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset;
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info->fix.smem_len = size;
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info->flags = FBINFO_DEFAULT;
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info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset,
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size);
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if (!info->screen_base) {
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ret = -ENOSPC;
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goto out_unpin;
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}
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info->screen_size = size;
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// memset(info->screen_base, 0, 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, fb, fb_width, 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(dev->pdev, mmio_bar);
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info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar);
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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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fb->fbdev = info;
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par->intel_fb = intel_fb;
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/* To allow resizeing without swapping buffers */
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DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
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intel_fb->base.width, intel_fb->base.height,
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obj_priv->gtt_offset, fbo);
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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_unpin:
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i915_gem_object_unpin(fbo);
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out_unref:
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drm_gem_object_unreference(fbo);
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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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int intelfb_probe(struct drm_device *dev)
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{
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int ret;
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DRM_DEBUG_KMS("\n");
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ret = drm_fb_helper_single_fb_probe(dev, 32, intelfb_create);
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return ret;
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}
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EXPORT_SYMBOL(intelfb_probe);
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int intelfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
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{
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struct fb_info *info;
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if (!fb)
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return -EINVAL;
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info = fb->fbdev;
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if (info) {
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struct intelfb_par *par = info->par;
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unregister_framebuffer(info);
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iounmap(info->screen_base);
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if (info->par)
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drm_fb_helper_free(&par->helper);
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framebuffer_release(info);
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}
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return 0;
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}
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EXPORT_SYMBOL(intelfb_remove);
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MODULE_LICENSE("GPL and additional rights");
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