Le lundi 02 octobre 2023 à 21:55 +1100, Jonathan Gray a écrit :
> On Fri, Sep 29, 2023 at 10:09:17PM +0200, Solène Rapenne wrote:
> > amdgpu_bar_sizes: RBCAP0 0x3f000 sizes: 256M 512M 1G 2G 4G 8G
> > amdgpu_bar_sizes: RBCTRL0 0xd40 8G
> > GMC real 0x1ff000000 vis 0x1ff000000, FB off 0x7c00000000 size
> > 0x200000000,
> > gart size 0x20000000
>
> Does limiting to a 32-bit size help?
>
> Index: sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c
> ===================================================================
> RCS file: /cvs/src/sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c,v
> retrieving revision 1.14
> diff -u -p -r1.14 amdgpu_ttm.c
> --- sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c 13 Aug 2023 10:36:26 -
> 0000 1.14
> +++ sys/dev/pci/drm/amd/amdgpu/amdgpu_ttm.c 2 Oct 2023 10:48:45 -
> 0000
> @@ -1791,6 +1791,13 @@ int amdgpu_ttm_init(struct amdgpu_device
> return r;
> }
>
> +#ifdef __OpenBSD__
> + if (amdgpu_vis_vram_limit == 0 && ((adev->flags & AMD_IS_APU)
> == 0)) {
> + if (amdgpu_vis_vram_limit > 4096)
> + amdgpu_vis_vram_limit = 4096;
> + }
> +#endif
> +
> /* Reduce size of CPU-visible VRAM if requested */
> vis_vram_limit = (u64)amdgpu_vis_vram_limit * 1024 * 1024;
> if (amdgpu_vis_vram_limit > 0 &&
> @@ -1810,11 +1817,13 @@ int amdgpu_ttm_init(struct amdgpu_device
> adev->mman.aper_base_kaddr = ioremap_wc(adev-
> >gmc.aper_base,
> adev->gmc.visible_vram_size);
> #else
> - if (bus_space_map(adev->memt, adev->gmc.aper_base,
> + r = bus_space_map(adev->memt, adev->gmc.aper_base,
> adev->gmc.visible_vram_size,
> BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE,
> - &adev->mman.aper_bsh)) {
> + &adev->mman.aper_bsh);
> + if (r) {
> adev->mman.aper_base_kaddr = NULL;
> + printf("bus_space_map ret %d\n", r);
> } else {
> adev->mman.aper_base_kaddr = bus_space_vaddr(adev-
> >memt,
> adev->mman.aper_bsh);
>
with this change, I see no behavior change, gnome/gdm still freeze while
starting xenodm + cwm works fine. 3D works for the few video games I
tried.
