[PATCH] drm/amdgpu: use generic fb helpers instead of setting up AMD own's.
Alex Deucher
alexdeucher at gmail.com
Thu Sep 30 15:28:21 UTC 2021
@Christian Koenig
Have you had a chance to look at this yet?
Alex
On Mon, Sep 20, 2021 at 4:44 AM Thomas Zimmermann <tzimmermann at suse.de> wrote:
>
> Hi
>
> Am 20.09.21 um 10:41 schrieb Thomas Zimmermann:
> > (cc'ing dri-devel)
> >
> > Hi
> >
> > Am 13.09.21 um 16:36 schrieb Alex Deucher:
> >> On Thu, Sep 9, 2021 at 11:25 PM Evan Quan <evan.quan at amd.com> wrote:
> >>>
> >>> With the shadow buffer support from generic framebuffer emulation, it's
> >>> possible now to have runpm kicked when no update for console.
> >>>
> >>> Change-Id: I285472c9100ee6f649d3f3f3548f402b9cd34eaf
> >>> Signed-off-by: Evan Quan <evan.quan at amd.com>
> >>> Acked-by: Christian König <christian.koenig at amd.com>
> >>
> >> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> >
> > There was a long discussion about this change within radeon and the
> > result was that it cannot be done. [1] I don't remember the full
> > details, but semantics of the vmap/vunmap for dma-bufs were not
> > compatible IIRC. And the resolution was a redesign of the API.
>
> I posted a patchset with a new interface at [1].
>
> Best regards
> Thomas
>
> [1]
> https://lore.kernel.org/dri-devel/20201209142527.26415-1-tzimmermann@suse.de/
>
> >
> > If that has changed, I'd be happy to see this patch merged. Otherwise,
> > it should better not be taken.
> >
> > Best regards
> > Thomas
> >
> > [1] https://patchwork.freedesktop.org/patch/400054/?series=83765&rev=1
> >
> >>
> >>> --
> >>> v1->v2:
> >>> - rename amdgpu_align_pitch as amdgpu_gem_align_pitch to align with
> >>> other APIs from the same file (Alex)
> >>> ---
> >>> drivers/gpu/drm/amd/amdgpu/Makefile | 2 +-
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 +-
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 11 +-
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 13 +
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 388 --------------------
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 30 +-
> >>> drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 20 -
> >>> 7 files changed, 50 insertions(+), 426 deletions(-)
> >>> delete mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> >>>
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile
> >>> b/drivers/gpu/drm/amd/amdgpu/Makefile
> >>> index 8d0748184a14..73a2151ee43f 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> >>> @@ -45,7 +45,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
> >>> amdgpu_atombios.o atombios_crtc.o amdgpu_connectors.o \
> >>> atom.o amdgpu_fence.o amdgpu_ttm.o amdgpu_object.o
> >>> amdgpu_gart.o \
> >>> amdgpu_encoders.o amdgpu_display.o amdgpu_i2c.o \
> >>> - amdgpu_fb.o amdgpu_gem.o amdgpu_ring.o \
> >>> + amdgpu_gem.o amdgpu_ring.o \
> >>> amdgpu_cs.o amdgpu_bios.o amdgpu_benchmark.o amdgpu_test.o \
> >>> atombios_dp.o amdgpu_afmt.o amdgpu_trace_points.o \
> >>> atombios_encoders.o amdgpu_sa.o atombios_i2c.o \
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> >>> index 682d459e992a..bcc308b7f826 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> >>> @@ -3695,8 +3695,6 @@ int amdgpu_device_init(struct amdgpu_device *adev,
> >>> /* Get a log2 for easy divisions. */
> >>> adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps));
> >>>
> >>> - amdgpu_fbdev_init(adev);
> >>> -
> >>> r = amdgpu_pm_sysfs_init(adev);
> >>> if (r) {
> >>> adev->pm_sysfs_en = false;
> >>> @@ -3854,8 +3852,6 @@ void amdgpu_device_fini_hw(struct amdgpu_device
> >>> *adev)
> >>> amdgpu_ucode_sysfs_fini(adev);
> >>> sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes);
> >>>
> >>> - amdgpu_fbdev_fini(adev);
> >>> -
> >>> amdgpu_irq_fini_hw(adev);
> >>>
> >>> amdgpu_device_ip_fini_early(adev);
> >>> @@ -3931,7 +3927,7 @@ int amdgpu_device_suspend(struct drm_device
> >>> *dev, bool fbcon)
> >>> drm_kms_helper_poll_disable(dev);
> >>>
> >>> if (fbcon)
> >>> - amdgpu_fbdev_set_suspend(adev, 1);
> >>> +
> >>> drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
> >>>
> >>> cancel_delayed_work_sync(&adev->delayed_init_work);
> >>>
> >>> @@ -4009,7 +4005,7 @@ int amdgpu_device_resume(struct drm_device
> >>> *dev, bool fbcon)
> >>> flush_delayed_work(&adev->delayed_init_work);
> >>>
> >>> if (fbcon)
> >>> - amdgpu_fbdev_set_suspend(adev, 0);
> >>> +
> >>> drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, false);
> >>>
> >>> drm_kms_helper_poll_enable(dev);
> >>>
> >>> @@ -4638,7 +4634,7 @@ int amdgpu_do_asic_reset(struct list_head
> >>> *device_list_handle,
> >>> if (r)
> >>> goto out;
> >>>
> >>> - amdgpu_fbdev_set_suspend(tmp_adev, 0);
> >>> +
> >>> drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper,
> >>> false);
> >>>
> >>> /*
> >>> * The GPU enters bad state once
> >>> faulty pages
> >>> @@ -5025,7 +5021,7 @@ int amdgpu_device_gpu_recover(struct
> >>> amdgpu_device *adev,
> >>> */
> >>> amdgpu_unregister_gpu_instance(tmp_adev);
> >>>
> >>> - amdgpu_fbdev_set_suspend(tmp_adev, 1);
> >>> +
> >>> drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
> >>>
> >>> /* disable ras on ALL IPs */
> >>> if (!need_emergency_restart &&
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> >>> index 7a7316731911..58bfc7f00d76 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> >>> @@ -1572,13 +1572,10 @@ int amdgpu_display_suspend_helper(struct
> >>> amdgpu_device *adev)
> >>> continue;
> >>> }
> >>> robj = gem_to_amdgpu_bo(fb->obj[0]);
> >>> - /* don't unpin kernel fb objects */
> >>> - if (!amdgpu_fbdev_robj_is_fb(adev, robj)) {
> >>> - r = amdgpu_bo_reserve(robj, true);
> >>> - if (r == 0) {
> >>> - amdgpu_bo_unpin(robj);
> >>> - amdgpu_bo_unreserve(robj);
> >>> - }
> >>> + r = amdgpu_bo_reserve(robj, true);
> >>> + if (r == 0) {
> >>> + amdgpu_bo_unpin(robj);
> >>> + amdgpu_bo_unreserve(robj);
> >>> }
> >>> }
> >>> return 0;
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> >>> index 987482c26b1a..db21af5e84ed 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> >>> @@ -1348,6 +1348,19 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
> >>> goto err_pci;
> >>> }
> >>>
> >>> + /*
> >>> + * 1. don't init fbdev on hw without DCE
> >>> + * 2. don't init fbdev if there are no connectors
> >>> + */
> >>> + if (adev->mode_info.mode_config_initialized &&
> >>> +
> >>> !list_empty(&adev_to_drm(adev)->mode_config.connector_list)) {
> >>> + /* select 8 bpp console on low vram cards */
> >>> + if (adev->gmc.real_vram_size <= (32*1024*1024))
> >>> + drm_fbdev_generic_setup(adev_to_drm(adev), 8);
> >>> + else
> >>> + drm_fbdev_generic_setup(adev_to_drm(adev), 32);
> >>> + }
> >>> +
> >>> ret = amdgpu_debugfs_init(adev);
> >>> if (ret)
> >>> DRM_ERROR("Creating debugfs files failed (%d).\n",
> >>> ret);
> >>> 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;
> >>> -}
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> >>> index 9e2525b96d04..355db8438522 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> >>> @@ -876,6 +876,32 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev,
> >>> void *data,
> >>> return r;
> >>> }
> >>>
> >>> +static int amdgpu_gem_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;
> >>> +}
> >>> +
> >>> int amdgpu_mode_dumb_create(struct drm_file *file_priv,
> >>> struct drm_device *dev,
> >>> struct drm_mode_create_dumb *args)
> >>> @@ -896,8 +922,8 @@ int amdgpu_mode_dumb_create(struct drm_file
> >>> *file_priv,
> >>> if (adev->mman.buffer_funcs_enabled)
> >>> flags |= AMDGPU_GEM_CREATE_VRAM_CLEARED;
> >>>
> >>> - args->pitch = amdgpu_align_pitch(adev, args->width,
> >>> - DIV_ROUND_UP(args->bpp, 8), 0);
> >>> + args->pitch = amdgpu_gem_align_pitch(adev, args->width,
> >>> + DIV_ROUND_UP(args->bpp,
> >>> 8), 0);
> >>> args->size = (u64)args->pitch * args->height;
> >>> args->size = ALIGN(args->size, PAGE_SIZE);
> >>> domain = amdgpu_bo_get_preferred_domain(adev,
> >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
> >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
> >>> index 89fb372ed49c..6043bf6fd414 100644
> >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
> >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
> >>> @@ -232,8 +232,6 @@ struct amdgpu_i2c_chan {
> >>> struct mutex mutex;
> >>> };
> >>>
> >>> -struct amdgpu_fbdev;
> >>> -
> >>> struct amdgpu_afmt {
> >>> bool enabled;
> >>> int offset;
> >>> @@ -309,13 +307,6 @@ struct amdgpu_framebuffer {
> >>> uint64_t address;
> >>> };
> >>>
> >>> -struct amdgpu_fbdev {
> >>> - struct drm_fb_helper helper;
> >>> - struct amdgpu_framebuffer rfb;
> >>> - struct list_head fbdev_list;
> >>> - struct amdgpu_device *adev;
> >>> -};
> >>> -
> >>> struct amdgpu_mode_info {
> >>> struct atom_context *atom_context;
> >>> struct card_info *atom_card_info;
> >>> @@ -341,8 +332,6 @@ struct amdgpu_mode_info {
> >>> struct edid *bios_hardcoded_edid;
> >>> int bios_hardcoded_edid_size;
> >>>
> >>> - /* pointer to fbdev info structure */
> >>> - struct amdgpu_fbdev *rfbdev;
> >>> /* firmware flags */
> >>> u32 firmware_flags;
> >>> /* pointer to backlight encoder */
> >>> @@ -631,15 +620,6 @@ bool amdgpu_crtc_get_scanout_position(struct
> >>> drm_crtc *crtc,
> >>> int *hpos, ktime_t *stime, ktime_t *etime,
> >>> const struct drm_display_mode *mode);
> >>>
> >>> -/* fbdev layer */
> >>> -int amdgpu_fbdev_init(struct amdgpu_device *adev);
> >>> -void amdgpu_fbdev_fini(struct amdgpu_device *adev);
> >>> -void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
> >>> -int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
> >>> -bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct
> >>> amdgpu_bo *robj);
> >>> -
> >>> -int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int
> >>> bpp, bool tiled);
> >>> -
> >>> /* amdgpu_display.c */
> >>> void amdgpu_display_print_display_setup(struct drm_device *dev);
> >>> int amdgpu_display_modeset_create_props(struct amdgpu_device *adev);
> >>> --
> >>> 2.29.0
> >>>
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
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