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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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550.40.07
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@@ -30,6 +30,7 @@
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#include "uvm_va_space_mm.h"
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#include <asm/io.h>
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#include <linux/log2.h>
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#include <linux/iommu.h>
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#include <linux/mm_types.h>
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#include <linux/acpi.h>
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@@ -50,6 +51,12 @@
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#define UVM_IOMMU_SVA_BIND_DEVICE(dev, mm) iommu_sva_bind_device(dev, mm)
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#endif
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// Type to represent a 128-bit SMMU command queue command.
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struct smmu_cmd {
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NvU64 low;
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NvU64 high;
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};
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// Base address of SMMU CMDQ-V for GSMMU0.
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#define SMMU_CMDQV_BASE_ADDR(smmu_base) (smmu_base + 0x200000)
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#define SMMU_CMDQV_BASE_LEN 0x00830000
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@@ -101,9 +108,9 @@
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// Base address offset for the VCMDQ registers.
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#define SMMU_VCMDQ_CMDQ_BASE 0x10000
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// Size of the command queue. Each command is 8 bytes and we can't
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// have a command queue greater than one page.
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#define SMMU_VCMDQ_CMDQ_BASE_LOG2SIZE 9
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// Size of the command queue. Each command is 16 bytes and we can't
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// have a command queue greater than one page in size.
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#define SMMU_VCMDQ_CMDQ_BASE_LOG2SIZE (PAGE_SHIFT - ilog2(sizeof(struct smmu_cmd)))
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#define SMMU_VCMDQ_CMDQ_ENTRIES (1UL << SMMU_VCMDQ_CMDQ_BASE_LOG2SIZE)
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// We always use VINTF63 for the WAR
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@@ -175,7 +182,6 @@ static NV_STATUS uvm_ats_smmu_war_init(uvm_parent_gpu_t *parent_gpu)
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iowrite32((VINTF << SMMU_CMDQV_CMDQ_ALLOC_MAP_VIRT_INTF_INDX_SHIFT) | SMMU_CMDQV_CMDQ_ALLOC_MAP_ALLOC,
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smmu_cmdqv_base + SMMU_CMDQV_CMDQ_ALLOC_MAP(VCMDQ));
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BUILD_BUG_ON((SMMU_VCMDQ_CMDQ_BASE_LOG2SIZE + 3) > PAGE_SHIFT);
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smmu_vcmdq_write64(smmu_cmdqv_base, SMMU_VCMDQ_CMDQ_BASE,
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page_to_phys(parent_gpu->smmu_war.smmu_cmdq) | SMMU_VCMDQ_CMDQ_BASE_LOG2SIZE);
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smmu_vcmdq_write32(smmu_cmdqv_base, SMMU_VCMDQ_CONS, 0);
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