0b4c0f3f0e
This breaks the connection between the core drm connector list and the fbdev connector usage, and allows them to become disjoint in the future. It also removes the untype void* that was in the connector struct to support this. All connectors are added to the fbdev now but this could be changed in the future. Signed-off-by: Dave Airlie <airlied@redhat.com>
422 lines
10 KiB
C
422 lines
10 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/fb.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 "radeon_drm.h"
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#include "radeon.h"
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#include "drm_fb_helper.h"
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#include <linux/vga_switcheroo.h>
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/* object hierarchy -
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this contains a helper + a radeon fb
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the helper contains a pointer to radeon framebuffer baseclass.
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*/
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struct radeon_fbdev {
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struct drm_fb_helper helper;
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struct radeon_framebuffer rfb;
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struct list_head fbdev_list;
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struct radeon_device *rdev;
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};
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static struct fb_ops radeonfb_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 int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
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{
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int aligned = width;
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int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
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int pitch_mask = 0;
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switch (bpp / 8) {
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case 1:
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pitch_mask = align_large ? 255 : 127;
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break;
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case 2:
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pitch_mask = align_large ? 127 : 31;
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break;
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case 3:
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case 4:
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pitch_mask = align_large ? 63 : 15;
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break;
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}
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aligned += pitch_mask;
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aligned &= ~pitch_mask;
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return aligned;
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}
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static struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
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.gamma_set = radeon_crtc_fb_gamma_set,
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.gamma_get = radeon_crtc_fb_gamma_get,
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};
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static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
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{
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struct radeon_bo *rbo = gobj->driver_private;
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int ret;
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ret = radeon_bo_reserve(rbo, false);
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if (likely(ret == 0)) {
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radeon_bo_kunmap(rbo);
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radeon_bo_unreserve(rbo);
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}
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drm_gem_object_unreference_unlocked(gobj);
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}
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static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
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struct drm_mode_fb_cmd *mode_cmd,
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struct drm_gem_object **gobj_p)
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{
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struct radeon_device *rdev = rfbdev->rdev;
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struct drm_gem_object *gobj = NULL;
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struct radeon_bo *rbo = NULL;
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bool fb_tiled = false; /* useful for testing */
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u32 tiling_flags = 0;
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int ret;
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int aligned_size, size;
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/* need to align pitch with crtc limits */
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mode_cmd->pitch = radeon_align_pitch(rdev, mode_cmd->width, mode_cmd->bpp, fb_tiled) * ((mode_cmd->bpp + 1) / 8);
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size = mode_cmd->pitch * mode_cmd->height;
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aligned_size = ALIGN(size, PAGE_SIZE);
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ret = radeon_gem_object_create(rdev, aligned_size, 0,
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RADEON_GEM_DOMAIN_VRAM,
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false, ttm_bo_type_kernel,
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&gobj);
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if (ret) {
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printk(KERN_ERR "failed to allocate framebuffer (%d)\n",
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aligned_size);
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return -ENOMEM;
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}
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rbo = gobj->driver_private;
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if (fb_tiled)
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tiling_flags = RADEON_TILING_MACRO;
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#ifdef __BIG_ENDIAN
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switch (mode_cmd->bpp) {
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case 32:
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tiling_flags |= RADEON_TILING_SWAP_32BIT;
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break;
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case 16:
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tiling_flags |= RADEON_TILING_SWAP_16BIT;
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default:
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break;
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}
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#endif
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if (tiling_flags) {
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ret = radeon_bo_set_tiling_flags(rbo,
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tiling_flags | RADEON_TILING_SURFACE,
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mode_cmd->pitch);
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if (ret)
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dev_err(rdev->dev, "FB failed to set tiling flags\n");
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}
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ret = radeon_bo_reserve(rbo, false);
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if (unlikely(ret != 0))
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goto out_unref;
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ret = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, NULL);
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if (ret) {
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radeon_bo_unreserve(rbo);
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goto out_unref;
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}
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if (fb_tiled)
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radeon_bo_check_tiling(rbo, 0, 0);
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ret = radeon_bo_kmap(rbo, NULL);
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radeon_bo_unreserve(rbo);
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if (ret) {
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goto out_unref;
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}
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*gobj_p = gobj;
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return 0;
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out_unref:
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radeonfb_destroy_pinned_object(gobj);
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*gobj_p = NULL;
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return ret;
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}
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static int radeonfb_create(struct radeon_fbdev *rfbdev,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct radeon_device *rdev = rfbdev->rdev;
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struct fb_info *info;
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struct drm_framebuffer *fb = NULL;
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struct drm_mode_fb_cmd mode_cmd;
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struct drm_gem_object *gobj = NULL;
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struct radeon_bo *rbo = NULL;
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struct device *device = &rdev->pdev->dev;
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int ret;
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unsigned long tmp;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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/* avivo can't scanout real 24bpp */
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if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
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sizes->surface_bpp = 32;
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mode_cmd.bpp = sizes->surface_bpp;
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mode_cmd.depth = sizes->surface_depth;
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ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
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rbo = gobj->driver_private;
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/* okay we have an object now allocate the framebuffer */
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info = framebuffer_alloc(0, device);
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if (info == NULL) {
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ret = -ENOMEM;
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goto out_unref;
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}
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info->par = rfbdev;
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radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
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fb = &rfbdev->rfb.base;
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/* setup helper */
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rfbdev->helper.fb = fb;
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rfbdev->helper.fbdev = info;
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rfbdev->helper.funcs = &radeon_fb_helper_funcs;
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memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo));
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strcpy(info->fix.id, "radeondrmfb");
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drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
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info->flags = FBINFO_DEFAULT;
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info->fbops = &radeonfb_ops;
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tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
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info->fix.smem_start = rdev->mc.aper_base + tmp;
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info->fix.smem_len = radeon_bo_size(rbo);
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info->screen_base = rbo->kptr;
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info->screen_size = radeon_bo_size(rbo);
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drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height);
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/* setup aperture base/size for vesafb takeover */
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info->aperture_base = rdev->ddev->mode_config.fb_base;
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info->aperture_size = rdev->mc.real_vram_size;
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info->fix.mmio_start = 0;
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info->fix.mmio_len = 0;
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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 (info->screen_base == NULL) {
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ret = -ENOSPC;
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goto out_unref;
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}
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DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
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DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base);
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DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
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DRM_INFO("fb depth is %d\n", fb->depth);
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DRM_INFO(" pitch is %d\n", fb->pitch);
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vga_switcheroo_client_fb_set(rdev->ddev->pdev, info);
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return 0;
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out_unref:
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if (rbo) {
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}
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if (fb && ret) {
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drm_gem_object_unreference(gobj);
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drm_framebuffer_cleanup(fb);
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kfree(fb);
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}
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return ret;
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}
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static int radeon_fb_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 radeon_fbdev *rfbdev = (struct radeon_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 = radeonfb_create(rfbdev, 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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static char *mode_option;
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int radeon_parse_options(char *options)
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{
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char *this_opt;
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if (!options || !*options)
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return 0;
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while ((this_opt = strsep(&options, ",")) != NULL) {
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if (!*this_opt)
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continue;
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mode_option = this_opt;
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}
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return 0;
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}
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static int radeonfb_probe(struct radeon_fbdev *rfbdev)
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{
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struct radeon_device *rdev = rfbdev->rdev;
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int bpp_sel = 32;
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/* select 8 bpp console on RN50 or 16MB cards */
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if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024))
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bpp_sel = 8;
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return drm_fb_helper_single_fb_probe(&rfbdev->helper, bpp_sel);
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}
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void radeonfb_hotplug(struct drm_device *dev)
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{
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struct radeon_device *rdev = dev->dev_private;
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int max_width, max_height;
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max_width = rdev->mode_info.rfbdev->rfb.base.width;
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max_height = rdev->mode_info.rfbdev->rfb.base.height;
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drm_helper_fb_hotplug_event(&rdev->mode_info.rfbdev->helper, max_width, max_height);
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radeonfb_probe(rdev->mode_info.rfbdev);
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}
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static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
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{
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struct fb_info *info;
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struct radeon_framebuffer *rfb = &rfbdev->rfb;
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struct radeon_bo *rbo;
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int r;
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if (rfbdev->helper.fbdev) {
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info = rfbdev->helper.fbdev;
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unregister_framebuffer(info);
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framebuffer_release(info);
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}
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if (rfb->obj) {
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rbo = rfb->obj->driver_private;
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r = radeon_bo_reserve(rbo, false);
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if (likely(r == 0)) {
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radeon_bo_kunmap(rbo);
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radeon_bo_unpin(rbo);
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radeon_bo_unreserve(rbo);
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}
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drm_gem_object_unreference_unlocked(rfb->obj);
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}
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drm_fb_helper_free(&rfbdev->helper);
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drm_framebuffer_cleanup(&rfb->base);
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return 0;
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}
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MODULE_LICENSE("GPL");
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int radeon_fbdev_init(struct radeon_device *rdev)
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{
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struct radeon_fbdev *rfbdev;
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rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
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if (!rfbdev)
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return -ENOMEM;
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rfbdev->rdev = rdev;
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rdev->mode_info.rfbdev = rfbdev;
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drm_fb_helper_init_crtc_count(rdev->ddev, &rfbdev->helper,
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rdev->num_crtc,
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RADEONFB_CONN_LIMIT);
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rfbdev->helper.fb_probe = radeon_fb_find_or_create_single;
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drm_fb_helper_single_add_all_connectors(&rfbdev->helper);
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drm_fb_helper_initial_config(&rfbdev->helper);
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radeonfb_probe(rfbdev);
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return 0;
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}
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void radeon_fbdev_fini(struct radeon_device *rdev)
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{
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if (!rdev->mode_info.rfbdev)
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return;
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radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev);
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kfree(rdev->mode_info.rfbdev);
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rdev->mode_info.rfbdev = NULL;
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}
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void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state)
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{
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fb_set_suspend(rdev->mode_info.rfbdev->helper.fbdev, state);
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}
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int radeon_fbdev_total_size(struct radeon_device *rdev)
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{
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struct radeon_bo *robj;
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int size = 0;
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robj = rdev->mode_info.rfbdev->rfb.obj->driver_private;
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size += radeon_bo_size(robj);
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return size;
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}
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bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
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{
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if (robj == rdev->mode_info.rfbdev->rfb.obj->driver_private)
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return true;
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return false;
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}
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