On Tue, Oct 25, 2022 at 11:02:33AM +0200, Salvatore Bonaccorso wrote: > Hi Greg, > > On Mon, Oct 24, 2022 at 01:33:01PM +0200, Greg Kroah-Hartman wrote: > > From: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > > > > This reverts commit 9f55f36f749a7608eeef57d7d72991a9bd557341 which is > > commit e3163bc8ffdfdb405e10530b140135b2ee487f89 upstream. > > > > This commit causes repeated WARN_ONs from > > > > drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amd > > gpu_dm.c:7391 amdgpu_dm_atomic_commit_tail+0x23b9/0x2430 [amdgpu] > > > > dmesg fills up with the following messages and drm initialization takes > > a very long time. > > > > Cc: <stable@xxxxxxxxxxxxxxx> # 5.10 > > Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 5 ----- > > drivers/gpu/drm/amd/amdgpu/soc15.c | 25 +++++++++++++++++++++++++ > > 2 files changed, 25 insertions(+), 5 deletions(-) > > > > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c > > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c > > @@ -1475,11 +1475,6 @@ static int sdma_v4_0_start(struct amdgpu > > WREG32_SDMA(i, mmSDMA0_CNTL, temp); > > > > if (!amdgpu_sriov_vf(adev)) { > > - ring = &adev->sdma.instance[i].ring; > > - adev->nbio.funcs->sdma_doorbell_range(adev, i, > > - ring->use_doorbell, ring->doorbell_index, > > - adev->doorbell_index.sdma_doorbell_range); > > - > > /* unhalt engine */ > > temp = RREG32_SDMA(i, mmSDMA0_F32_CNTL); > > temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0); > > --- a/drivers/gpu/drm/amd/amdgpu/soc15.c > > +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c > > @@ -1332,6 +1332,25 @@ static int soc15_common_sw_fini(void *ha > > return 0; > > } > > > > +static void soc15_doorbell_range_init(struct amdgpu_device *adev) > > +{ > > + int i; > > + struct amdgpu_ring *ring; > > + > > + /* sdma/ih doorbell range are programed by hypervisor */ > > + if (!amdgpu_sriov_vf(adev)) { > > + for (i = 0; i < adev->sdma.num_instances; i++) { > > + ring = &adev->sdma.instance[i].ring; > > + adev->nbio.funcs->sdma_doorbell_range(adev, i, > > + ring->use_doorbell, ring->doorbell_index, > > + adev->doorbell_index.sdma_doorbell_range); > > + } > > + > > + adev->nbio.funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell, > > + adev->irq.ih.doorbell_index); > > + } > > +} > > + > > static int soc15_common_hw_init(void *handle) > > { > > struct amdgpu_device *adev = (struct amdgpu_device *)handle; > > @@ -1351,6 +1370,12 @@ static int soc15_common_hw_init(void *ha > > > > /* enable the doorbell aperture */ > > soc15_enable_doorbell_aperture(adev, true); > > + /* HW doorbell routing policy: doorbell writing not > > + * in SDMA/IH/MM/ACV range will be routed to CP. So > > + * we need to init SDMA/IH/MM/ACV doorbell range prior > > + * to CP ip block init and ring test. > > + */ > > + soc15_doorbell_range_init(adev); > > > > return 0; > > } > > Can you please as well revert 7b0db849ea030a70b8fb9c9afec67c81f955482e > on top? > > See https://lore.kernel.org/stable/BL1PR12MB5144F3CC640A18DF0C36E414F72E9@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > Both of these reverts need to be applied to fix regressions which were > reported in https://gitlab.freedesktop.org/drm/amd/-/issues/2216 and > downstream in Debian (https://bugs.debian.org/1022025). > > If it is now not anymore possible for 5.10.150 can you pick the revert > for 5.10.151? Now queued up. greg k-h