From e312af6c2a920b8df2adee1ae31f5c364a4091fb Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Tue, 31 Aug 2021 17:42:15 -0400 Subject: [PATCH] drm/amdkfd: make needs_pcie_atomics FW-version dependent On some GPUs the PCIe atomic requirement for KFD depends on the MEC firmware version. Add a firmware version check for this. The minimum firmware version that works without atomics can be updated in the device_info structure for each GPU type. Move PCIe atomic detection from kgd2kfd_probe into kgd2kfd_device_init because the MEC firmware is not loaded yet at the probe stage. Signed-off-by: Felix Kuehling Reviewed-by: Guchun Chen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 44 +++++++++++++++++++++------------ drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 + 2 files changed, 29 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 16a57b7..30fde85 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -468,6 +468,7 @@ static const struct kfd_device_info navi10_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 145, .num_sdma_engines = 2, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -487,6 +488,7 @@ static const struct kfd_device_info navi12_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 145, .num_sdma_engines = 2, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -506,6 +508,7 @@ static const struct kfd_device_info navi14_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 145, .num_sdma_engines = 2, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -525,6 +528,7 @@ static const struct kfd_device_info sienna_cichlid_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 4, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -544,6 +548,7 @@ static const struct kfd_device_info navy_flounder_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 2, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -562,7 +567,8 @@ static const struct kfd_device_info vangogh_device_info = { .mqd_size_aligned = MQD_SIZE_ALIGNED, .needs_iommu_device = false, .supports_cwsr = true, - .needs_pci_atomics = false, + .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 1, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 2, @@ -582,6 +588,7 @@ static const struct kfd_device_info dimgrey_cavefish_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 2, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -601,6 +608,7 @@ static const struct kfd_device_info beige_goby_device_info = { .needs_iommu_device = false, .supports_cwsr = true, .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 1, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 8, @@ -619,7 +627,8 @@ static const struct kfd_device_info yellow_carp_device_info = { .mqd_size_aligned = MQD_SIZE_ALIGNED, .needs_iommu_device = false, .supports_cwsr = true, - .needs_pci_atomics = false, + .needs_pci_atomics = true, + .no_atomic_fw_version = 92, .num_sdma_engines = 1, .num_xgmi_sdma_engines = 0, .num_sdma_queues_per_engine = 2, @@ -708,20 +717,6 @@ struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, if (!kfd) return NULL; - /* Allow BIF to recode atomics to PCIe 3.0 AtomicOps. - * 32 and 64-bit requests are possible and must be - * supported. - */ - kfd->pci_atomic_requested = amdgpu_amdkfd_have_atomics_support(kgd); - if (device_info->needs_pci_atomics && - !kfd->pci_atomic_requested) { - dev_info(kfd_device, - "skipped device %x:%x, PCI rejects atomics\n", - pdev->vendor, pdev->device); - kfree(kfd); - return NULL; - } - kfd->kgd = kgd; kfd->device_info = device_info; kfd->pdev = pdev; @@ -821,6 +816,23 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, kfd->vm_info.vmid_num_kfd = kfd->vm_info.last_vmid_kfd - kfd->vm_info.first_vmid_kfd + 1; + /* Allow BIF to recode atomics to PCIe 3.0 AtomicOps. + * 32 and 64-bit requests are possible and must be + * supported. + */ + kfd->pci_atomic_requested = amdgpu_amdkfd_have_atomics_support(kfd->kgd); + if (!kfd->pci_atomic_requested && + kfd->device_info->needs_pci_atomics && + (!kfd->device_info->no_atomic_fw_version || + kfd->mec_fw_version < kfd->device_info->no_atomic_fw_version)) { + dev_info(kfd_device, + "skipped device %x:%x, PCI rejects atomics %d<%d\n", + kfd->pdev->vendor, kfd->pdev->device, + kfd->mec_fw_version, + kfd->device_info->no_atomic_fw_version); + return false; + } + /* Verify module parameters regarding mapped process number*/ if ((hws_max_conc_proc < 0) || (hws_max_conc_proc > kfd->vm_info.vmid_num_kfd)) { diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index ab83b0d..6d8f9bb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -207,6 +207,7 @@ struct kfd_device_info { bool supports_cwsr; bool needs_iommu_device; bool needs_pci_atomics; + uint32_t no_atomic_fw_version; unsigned int num_sdma_engines; unsigned int num_xgmi_sdma_engines; unsigned int num_sdma_queues_per_engine; -- 2.7.4