From: nickel@altlinux.org To: devel-kernel@lists.altlinux.org Subject: [d-kernel] [PATCH 1/2] Revert "drm/amdgpu: move nbio sdma_doorbell_range() into sdma code for vega" Date: Fri, 21 Oct 2022 12:48:24 +0300 Message-ID: <20221021094825.399779-2-nickel@altlinux.org> (raw) In-Reply-To: <20221021094825.399779-1-nickel@altlinux.org> From: Nikolai Kostrigin <nickel@altlinux.org> This reverts commit 9f55f36f749a7608eeef57d7d72991a9bd557341. Fix amdgpu regression for kernel 5.10. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2216 Signed-off-by: Nikolai Kostrigin <nickel@altlinux.org> --- 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(-) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index a1a8e026b9fa6..1f2e2460e121e 100644 --- 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_device *adev) 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); diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index abd649285a22d..7212b9900e0ab 100644 --- 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 *handle) 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 *handle) /* 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; } -- 2.33.4
next prev parent reply other threads:[~2022-10-21 9:48 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-21 9:48 [d-kernel] [PATCH 0/2] Fix amdgpu regression for kernel 5.10 nickel 2022-10-21 9:48 ` nickel [this message] 2022-10-21 9:48 ` [d-kernel] [PATCH 2/2] Revert "drm/amdgpu: make sure to init common IP before gmc" nickel 2022-10-21 10:13 ` [d-kernel] [PATCH 0/2] Fix amdgpu regression for kernel 5.10 Vitaly Chikunov
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