From 376002f4b028504a07868f7ee96ad41e0f69ae09 Mon Sep 17 00:00:00 2001 From: Bokun Zhang Date: Tue, 5 Jan 2021 16:15:57 -0500 Subject: drm/amd/amdgpu: Use IP discovery data to determine VCN enablement instead of MMSCH In the past, we use MMSCH to determine whether a VCN is enabled or not. This is not reliable since after a FLR, MMSCH may report junk data. It is better to use IP discovery data. Signed-off-by: Bokun Zhang Signed-off-by: Peng Ju Zhou Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 53 +++++++++-------------------------- 1 file changed, 14 insertions(+), 39 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c') diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index ea6487ca997a..47d4f04cbd69 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -87,16 +87,18 @@ static void vcn_v3_0_enc_ring_set_wptr(struct amdgpu_ring *ring); static int vcn_v3_0_early_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int i; if (amdgpu_sriov_vf(adev)) { - adev->vcn.num_vcn_inst = VCN_INSTANCES_SIENNA_CICHLID; + for (i = 0; i < VCN_INSTANCES_SIENNA_CICHLID; i++) + if (amdgpu_vcn_is_disabled_vcn(adev, VCN_DECODE_RING, i)) + adev->vcn.num_vcn_inst++; adev->vcn.harvest_config = 0; adev->vcn.num_enc_rings = 1; } else { if (adev->asic_type == CHIP_SIENNA_CICHLID) { u32 harvest; - int i; adev->vcn.num_vcn_inst = VCN_INSTANCES_SIENNA_CICHLID; for (i = 0; i < adev->vcn.num_vcn_inst; i++) { @@ -151,7 +153,8 @@ static int vcn_v3_0_sw_init(void *handle) adev->firmware.fw_size += ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE); - if (adev->vcn.num_vcn_inst == VCN_INSTANCES_SIENNA_CICHLID) { + if ((adev->vcn.num_vcn_inst == VCN_INSTANCES_SIENNA_CICHLID) || + (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_SIENNA_CICHLID)) { adev->firmware.ucode[AMDGPU_UCODE_ID_VCN1].ucode_id = AMDGPU_UCODE_ID_VCN1; adev->firmware.ucode[AMDGPU_UCODE_ID_VCN1].fw = adev->vcn.fw; adev->firmware.fw_size += @@ -325,19 +328,17 @@ static int vcn_v3_0_hw_init(void *handle) continue; ring = &adev->vcn.inst[i].ring_dec; - if (ring->sched.ready) { - ring->wptr = 0; - ring->wptr_old = 0; - vcn_v3_0_dec_ring_set_wptr(ring); - } + ring->wptr = 0; + ring->wptr_old = 0; + vcn_v3_0_dec_ring_set_wptr(ring); + ring->sched.ready = true; for (j = 0; j < adev->vcn.num_enc_rings; ++j) { ring = &adev->vcn.inst[i].ring_enc[j]; - if (ring->sched.ready) { - ring->wptr = 0; - ring->wptr_old = 0; - vcn_v3_0_enc_ring_set_wptr(ring); - } + ring->wptr = 0; + ring->wptr_old = 0; + vcn_v3_0_enc_ring_set_wptr(ring); + ring->sched.ready = true; } } } else { @@ -1304,8 +1305,6 @@ static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) uint32_t table_size; uint32_t size, size_dw; - bool is_vcn_ready; - struct mmsch_v3_0_cmd_direct_write direct_wt = { {0} }; struct mmsch_v3_0_cmd_direct_read_modify_write @@ -1497,30 +1496,6 @@ static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) } } - /* 6, check each VCN's init_status - * if it remains as 0, then this VCN is not assigned to current VF - * do not start ring for this VCN - */ - size = sizeof(struct mmsch_v3_0_init_header); - table_loc = (uint32_t *)table->cpu_addr; - memcpy(&header, (void *)table_loc, size); - - for (i = 0; i < adev->vcn.num_vcn_inst; i++) { - if (adev->vcn.harvest_config & (1 << i)) - continue; - - is_vcn_ready = (header.inst[i].init_status == 1); - if (!is_vcn_ready) - DRM_INFO("VCN(%d) engine is disabled by hypervisor\n", i); - - ring = &adev->vcn.inst[i].ring_dec; - ring->sched.ready = is_vcn_ready; - for (j = 0; j < adev->vcn.num_enc_rings; ++j) { - ring = &adev->vcn.inst[i].ring_enc[j]; - ring->sched.ready = is_vcn_ready; - } - } - return 0; } -- cgit v1.2.3