Am 14.04.25 um 12:46 schrieb Samuel Zhang: > gart tlb may be staled when switch to a new gpu index. this cause gpu > fetchs wrong data from gtt memory. Flush gart tlb at the end of gmc > resume to fix it.
Well that's complete nonsense. When the TLB contains entries after a resume than that is a major bug in the hypervisor. Christian. > > Signed-off-by: Samuel Zhang <guoqing.zh...@amd.com> > Change-Id: If2a3780319f5ecf3dcb0f1c07f85151ed65f522d > --- > drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c > b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c > index 73ac05b9a1bf..0e7957b4389a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c > @@ -2543,7 +2543,7 @@ static int gmc_v9_0_resume(struct amdgpu_ip_block > *ip_block) > return r; > > amdgpu_vmid_reset_all(ip_block->adev); > - > + amdgpu_gart_invalidate_tlb(adev); > return 0; > } >
