diff options
author | Mukul Joshi <mukul.joshi@amd.com> | 2023-06-09 18:11:53 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-07 20:51:47 +0300 |
commit | e77673d14f2cec6d47d2da4e58dce87c2d66e54f (patch) | |
tree | 3acede7626f29cb93a0e527bd8b10c8990b00384 /drivers/gpu | |
parent | bc8ba5f2da3e7bd63bc1750f6c7e480c406de8b0 (diff) | |
download | linux-e77673d14f2cec6d47d2da4e58dce87c2d66e54f.tar.xz |
drm/amdgpu: Update invalid PTE flag setting
Update the invalid PTE flag setting with TF enabled.
This is to ensure, in addition to transitioning the
retry fault to a no-retry fault, it also causes the
wavefront to enter the trap handler. With the current
setting, the fault only transitions to a no-retry fault.
Additionally, have 2 sets of invalid PTE settings, one for
TF enabled, the other for TF disabled. The setting with
TF disabled, doesn't work with TF enabled.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 31 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 |
9 files changed, 45 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index 56d73fade568..fdc25cd559b6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -331,6 +331,8 @@ struct amdgpu_gmc { u64 VM_CONTEXT_PAGE_TABLE_END_ADDR_LO32[16]; u64 VM_CONTEXT_PAGE_TABLE_END_ADDR_HI32[16]; u64 MC_VM_MX_L1_TLB_CNTL; + + u64 noretry_flags; }; #define amdgpu_gmc_flush_gpu_tlb(adev, vmid, vmhub, type) ((adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid), (vmhub), (type))) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 291977b93b1d..8eda8f7ac612 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2604,7 +2604,7 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid, /* Intentionally setting invalid PTE flag * combination to force a no-retry-fault */ - flags = AMDGPU_PTE_SNOOPED | AMDGPU_PTE_PRT; + flags = AMDGPU_VM_NORETRY_FLAGS; value = 0; } else if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_NEVER) { /* Redirect the access to the dummy page */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 9c85d494f2a2..b81fcb962d8f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -84,7 +84,13 @@ struct amdgpu_mem_stats; /* PDE Block Fragment Size for VEGA10 */ #define AMDGPU_PDE_BFS(a) ((uint64_t)a << 59) +/* Flag combination to set no-retry with TF disabled */ +#define AMDGPU_VM_NORETRY_FLAGS (AMDGPU_PTE_EXECUTABLE | AMDGPU_PDE_PTE | \ + AMDGPU_PTE_TF) +/* Flag combination to set no-retry with TF enabled */ +#define AMDGPU_VM_NORETRY_FLAGS_TF (AMDGPU_PTE_VALID | AMDGPU_PTE_SYSTEM | \ + AMDGPU_PTE_PRT) /* For GFX9 */ #define AMDGPU_PTE_MTYPE_VG10(a) ((uint64_t)(a) << 57) #define AMDGPU_PTE_MTYPE_VG10_MASK AMDGPU_PTE_MTYPE_VG10(3ULL) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index dea1a64be44d..24ddf6a0512a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -778,6 +778,27 @@ int amdgpu_vm_pde_update(struct amdgpu_vm_update_params *params, 1, 0, flags); } +/** + * amdgpu_vm_pte_update_noretry_flags - Update PTE no-retry flags + * + * @adev - amdgpu_device pointer + * @flags: pointer to PTE flags + * + * Update PTE no-retry flags when TF is enabled. + */ +static void amdgpu_vm_pte_update_noretry_flags(struct amdgpu_device *adev, + uint64_t *flags) +{ + /* + * Update no-retry flags with the corresponding TF + * no-retry combination. + */ + if ((*flags & AMDGPU_VM_NORETRY_FLAGS) == AMDGPU_VM_NORETRY_FLAGS) { + *flags &= ~AMDGPU_VM_NORETRY_FLAGS; + *flags |= adev->gmc.noretry_flags; + } +} + /* * amdgpu_vm_pte_update_flags - figure out flags for PTE updates * @@ -804,6 +825,16 @@ static void amdgpu_vm_pte_update_flags(struct amdgpu_vm_update_params *params, flags |= AMDGPU_PTE_EXECUTABLE; } + /* + * Update no-retry flags to use the no-retry flag combination + * with TF enabled. The AMDGPU_VM_NORETRY_FLAGS flag combination + * does not work when TF is enabled. So, replace them with + * AMDGPU_VM_NORETRY_FLAGS_TF flag combination which works for + * all cases. + */ + if (level == AMDGPU_VM_PTB) + amdgpu_vm_pte_update_noretry_flags(adev, &flags); + /* APUs mapping system memory may need different MTYPEs on different * NUMA nodes. Only do this for contiguous ranges that can be assumed * to be on the same NUMA node. diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index 0c8a47989576..13b89f78d07d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -751,6 +751,7 @@ static int gmc_v10_0_early_init(void *handle) adev->gmc.private_aperture_start = 0x1000000000000000ULL; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c index c571f0d95994..c68ecb7dfa39 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c @@ -651,6 +651,7 @@ static int gmc_v11_0_early_init(void *handle) adev->gmc.private_aperture_start = 0x1000000000000000ULL; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index acd2b407860f..027b14603037 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -942,6 +942,7 @@ static int gmc_v7_0_early_init(void *handle) adev->gmc.shared_aperture_end + 1; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 85dead2a5702..581ed922dbe3 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -1056,6 +1056,7 @@ static int gmc_v8_0_early_init(void *handle) adev->gmc.shared_aperture_end + 1; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 67e669e0141c..ebdbc823fae3 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1622,6 +1622,7 @@ static int gmc_v9_0_early_init(void *handle) adev->gmc.private_aperture_start = 0x1000000000000000ULL; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; return 0; } |