diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c deleted file mode 100644 index cd0acbea75da..000000000000 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ /dev/null @@ -1,388 +0,0 @@ -/* - * Copyright © 2007 David Airlie - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * David Airlie - */ - -#include <linux/module.h> -#include <linux/pm_runtime.h> -#include <linux/slab.h> -#include <linux/vga_switcheroo.h> - -#include <drm/amdgpu_drm.h> -#include <drm/drm_crtc.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fourcc.h> - -#include "amdgpu.h" -#include "cikd.h" -#include "amdgpu_gem.h" - -#include "amdgpu_display.h" - -/* object hierarchy - - this contains a helper + a amdgpu fb - the helper contains a pointer to amdgpu framebuffer baseclass. -*/ - -static int -amdgpufb_open(struct fb_info *info, int user) -{ - struct drm_fb_helper *fb_helper = info->par; - int ret = pm_runtime_get_sync(fb_helper->dev->dev); - if (ret < 0 && ret != -EACCES) { - pm_runtime_mark_last_busy(fb_helper->dev->dev); - pm_runtime_put_autosuspend(fb_helper->dev->dev); - return ret; - } - return 0; -} - -static int -amdgpufb_release(struct fb_info *info, int user) -{ - struct drm_fb_helper *fb_helper = info->par; - - pm_runtime_mark_last_busy(fb_helper->dev->dev); - pm_runtime_put_autosuspend(fb_helper->dev->dev); - return 0; -} - -static const struct fb_ops amdgpufb_ops = { - .owner = THIS_MODULE, - DRM_FB_HELPER_DEFAULT_OPS, - .fb_open = amdgpufb_open, - .fb_release = amdgpufb_release, - .fb_fillrect = drm_fb_helper_cfb_fillrect, - .fb_copyarea = drm_fb_helper_cfb_copyarea, - .fb_imageblit = drm_fb_helper_cfb_imageblit, -}; - - -int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int cpp, bool tiled) -{ - int aligned = width; - int pitch_mask = 0; - - switch (cpp) { - case 1: - pitch_mask = 255; - break; - case 2: - pitch_mask = 127; - break; - case 3: - case 4: - pitch_mask = 63; - break; - } - - aligned += pitch_mask; - aligned &= ~pitch_mask; - return aligned * cpp; -} - -static void amdgpufb_destroy_pinned_object(struct drm_gem_object *gobj) -{ - struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj); - int ret; - - ret = amdgpu_bo_reserve(abo, true); - if (likely(ret == 0)) { - amdgpu_bo_kunmap(abo); - amdgpu_bo_unpin(abo); - amdgpu_bo_unreserve(abo); - } - drm_gem_object_put(gobj); -} - -static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev, - struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object **gobj_p) -{ - const struct drm_format_info *info; - struct amdgpu_device *adev = rfbdev->adev; - struct drm_gem_object *gobj = NULL; - struct amdgpu_bo *abo = NULL; - bool fb_tiled = false; /* useful for testing */ - u32 tiling_flags = 0, domain; - int ret; - int aligned_size, size; - int height = mode_cmd->height; - u32 cpp; - u64 flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | - AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | - AMDGPU_GEM_CREATE_VRAM_CLEARED; - - info = drm_get_format_info(adev_to_drm(adev), mode_cmd); - cpp = info->cpp[0]; - - /* need to align pitch with crtc limits */ - mode_cmd->pitches[0] = amdgpu_align_pitch(adev, mode_cmd->width, cpp, - fb_tiled); - domain = amdgpu_display_supported_domains(adev, flags); - height = ALIGN(mode_cmd->height, 8); - size = mode_cmd->pitches[0] * height; - aligned_size = ALIGN(size, PAGE_SIZE); - ret = amdgpu_gem_object_create(adev, aligned_size, 0, domain, flags, - ttm_bo_type_device, NULL, &gobj); - if (ret) { - pr_err("failed to allocate framebuffer (%d)\n", aligned_size); - return -ENOMEM; - } - abo = gem_to_amdgpu_bo(gobj); - - if (fb_tiled) - tiling_flags = AMDGPU_TILING_SET(ARRAY_MODE, GRPH_ARRAY_2D_TILED_THIN1); - - ret = amdgpu_bo_reserve(abo, false); - if (unlikely(ret != 0)) - goto out_unref; - - if (tiling_flags) { - ret = amdgpu_bo_set_tiling_flags(abo, - tiling_flags); - if (ret) - dev_err(adev->dev, "FB failed to set tiling flags\n"); - } - - ret = amdgpu_bo_pin(abo, domain); - if (ret) { - amdgpu_bo_unreserve(abo); - goto out_unref; - } - - ret = amdgpu_ttm_alloc_gart(&abo->tbo); - if (ret) { - amdgpu_bo_unreserve(abo); - dev_err(adev->dev, "%p bind failed\n", abo); - goto out_unref; - } - - ret = amdgpu_bo_kmap(abo, NULL); - amdgpu_bo_unreserve(abo); - if (ret) { - goto out_unref; - } - - *gobj_p = gobj; - return 0; -out_unref: - amdgpufb_destroy_pinned_object(gobj); - *gobj_p = NULL; - return ret; -} - -static int amdgpufb_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct amdgpu_fbdev *rfbdev = (struct amdgpu_fbdev *)helper; - struct amdgpu_device *adev = rfbdev->adev; - struct fb_info *info; - struct drm_framebuffer *fb = NULL; - struct drm_mode_fb_cmd2 mode_cmd; - struct drm_gem_object *gobj = NULL; - struct amdgpu_bo *abo = NULL; - int ret; - - memset(&mode_cmd, 0, sizeof(mode_cmd)); - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - - if (sizes->surface_bpp == 24) - sizes->surface_bpp = 32; - - mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, - sizes->surface_depth); - - ret = amdgpufb_create_pinned_object(rfbdev, &mode_cmd, &gobj); - if (ret) { - DRM_ERROR("failed to create fbcon object %d\n", ret); - return ret; - } - - abo = gem_to_amdgpu_bo(gobj); - - /* okay we have an object now allocate the framebuffer */ - info = drm_fb_helper_alloc_fbi(helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto out; - } - - ret = amdgpu_display_gem_fb_init(adev_to_drm(adev), &rfbdev->rfb, - &mode_cmd, gobj); - if (ret) { - DRM_ERROR("failed to initialize framebuffer %d\n", ret); - goto out; - } - - fb = &rfbdev->rfb.base; - - /* setup helper */ - rfbdev->helper.fb = fb; - - info->fbops = &amdgpufb_ops; - - info->fix.smem_start = amdgpu_gmc_vram_cpu_pa(adev, abo); - info->fix.smem_len = amdgpu_bo_size(abo); - info->screen_base = amdgpu_bo_kptr(abo); - info->screen_size = amdgpu_bo_size(abo); - - drm_fb_helper_fill_info(info, &rfbdev->helper, sizes); - - /* setup aperture base/size for vesafb takeover */ - info->apertures->ranges[0].base = adev_to_drm(adev)->mode_config.fb_base; - info->apertures->ranges[0].size = adev->gmc.aper_size; - - /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ - - if (info->screen_base == NULL) { - ret = -ENOSPC; - goto out; - } - - DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); - DRM_INFO("vram apper at 0x%lX\n", (unsigned long)adev->gmc.aper_base); - DRM_INFO("size %lu\n", (unsigned long)amdgpu_bo_size(abo)); - DRM_INFO("fb depth is %d\n", fb->format->depth); - DRM_INFO(" pitch is %d\n", fb->pitches[0]); - - vga_switcheroo_client_fb_set(adev->pdev, info); - return 0; - -out: - if (fb && ret) { - drm_gem_object_put(gobj); - drm_framebuffer_unregister_private(fb); - drm_framebuffer_cleanup(fb); - kfree(fb); - } - return ret; -} - -static int amdgpu_fbdev_destroy(struct drm_device *dev, struct amdgpu_fbdev *rfbdev) -{ - struct amdgpu_framebuffer *rfb = &rfbdev->rfb; - int i; - - drm_fb_helper_unregister_fbi(&rfbdev->helper); - - if (rfb->base.obj[0]) { - for (i = 0; i < rfb->base.format->num_planes; i++) - drm_gem_object_put(rfb->base.obj[0]); - amdgpufb_destroy_pinned_object(rfb->base.obj[0]); - rfb->base.obj[0] = NULL; - drm_framebuffer_unregister_private(&rfb->base); - drm_framebuffer_cleanup(&rfb->base); - } - drm_fb_helper_fini(&rfbdev->helper); - - return 0; -} - -static const struct drm_fb_helper_funcs amdgpu_fb_helper_funcs = { - .fb_probe = amdgpufb_create, -}; - -int amdgpu_fbdev_init(struct amdgpu_device *adev) -{ - struct amdgpu_fbdev *rfbdev; - int bpp_sel = 32; - int ret; - - /* don't init fbdev on hw without DCE */ - if (!adev->mode_info.mode_config_initialized) - return 0; - - /* don't init fbdev if there are no connectors */ - if (list_empty(&adev_to_drm(adev)->mode_config.connector_list)) - return 0; - - /* select 8 bpp console on low vram cards */ - if (adev->gmc.real_vram_size <= (32*1024*1024)) - bpp_sel = 8; - - rfbdev = kzalloc(sizeof(struct amdgpu_fbdev), GFP_KERNEL); - if (!rfbdev) - return -ENOMEM; - - rfbdev->adev = adev; - adev->mode_info.rfbdev = rfbdev; - - drm_fb_helper_prepare(adev_to_drm(adev), &rfbdev->helper, - &amdgpu_fb_helper_funcs); - - ret = drm_fb_helper_init(adev_to_drm(adev), &rfbdev->helper); - if (ret) { - kfree(rfbdev); - return ret; - } - - /* disable all the possible outputs/crtcs before entering KMS mode */ - if (!amdgpu_device_has_dc_support(adev) && !amdgpu_virtual_display) - drm_helper_disable_unused_functions(adev_to_drm(adev)); - - drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); - return 0; -} - -void amdgpu_fbdev_fini(struct amdgpu_device *adev) -{ - if (!adev->mode_info.rfbdev) - return; - - amdgpu_fbdev_destroy(adev_to_drm(adev), adev->mode_info.rfbdev); - kfree(adev->mode_info.rfbdev); - adev->mode_info.rfbdev = NULL; -} - -void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state) -{ - if (adev->mode_info.rfbdev) - drm_fb_helper_set_suspend_unlocked(&adev->mode_info.rfbdev->helper, - state); -} - -int amdgpu_fbdev_total_size(struct amdgpu_device *adev) -{ - struct amdgpu_bo *robj; - int size = 0; - - if (!adev->mode_info.rfbdev) - return 0; - - robj = gem_to_amdgpu_bo(adev->mode_info.rfbdev->rfb.base.obj[0]); - size += amdgpu_bo_size(robj); - return size; -} - -bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj) -{ - if (!adev->mode_info.rfbdev) - return false; - if (robj == gem_to_amdgpu_bo(adev->mode_info.rfbdev->rfb.base.obj[0])) - return true; - return false; -} |