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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c388
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;
-}