> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Christian König > Sent: Tuesday, January 24, 2017 9:10 AM > To: amd-gfx at lists.freedesktop.org > Subject: [PATCH 1/2] drm/amdgpu: fix 64bit shift for KV/KB > > From: Christian König <christian.koenig at amd.com> > > Fixes "access stolen VRAM directly on KV/KB" otherwise that won't > work as expected with more than 4GB RAM. > > Signed-off-by: Christian König <christian.koenig at amd.com> Series is: Reviewed-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c > b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c > index ccce04d..8d05e0c 100644 > --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c > @@ -378,7 +378,7 @@ static int gmc_v7_0_mc_init(struct amdgpu_device > *adev) > > #ifdef CONFIG_X86_64 > if (adev->flags & AMD_IS_APU) { > - adev->mc.aper_base = RREG32(mmMC_VM_FB_OFFSET) << > 22ULL; > + adev->mc.aper_base = > ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22; > adev->mc.aper_size = adev->mc.real_vram_size; > } > #endif > -- > 2.5.0 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
