diff options
| author | Mukul Joshi <mukul.joshi@amd.com> | 2023-04-25 14:19:05 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:24:52 -0400 |
| commit | 27fb73a0e3aa7478bcb5d2d59d65eec3c68fc165 (patch) | |
| tree | 68799c9ad17edb58434e02a8ae1fb958ed65f6d0 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | |
| parent | f1f6f48a338cdab96efef712dbef6b1e279583e2 (diff) | |
drm/amdkfd: Update KFD TTM mem limit
Use the helper function in TTM to get TTM memory
limit and set KFD's internal mem limit. This ensures
that KFD's TTM mem limit and actual TTM mem limit are
exactly same.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 4432e169fae8..c3990a5eb7c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -36,6 +36,7 @@ #include <uapi/linux/kfd_ioctl.h> #include "amdgpu_xgmi.h" #include "kfd_smi_events.h" +#include <drm/ttm/ttm_tt.h> /* Userptr restore delay, just long enough to allow consecutive VM * changes to accumulate @@ -110,13 +111,16 @@ void amdgpu_amdkfd_gpuvm_init_mem_limits(void) struct sysinfo si; uint64_t mem; + if (kfd_mem_limit.max_system_mem_limit) + return; + si_meminfo(&si); mem = si.freeram - si.freehigh; mem *= si.mem_unit; spin_lock_init(&kfd_mem_limit.mem_limit_lock); kfd_mem_limit.max_system_mem_limit = mem - (mem >> 4); - kfd_mem_limit.max_ttm_mem_limit = (mem >> 1) - (mem >> 3); + kfd_mem_limit.max_ttm_mem_limit = ttm_tt_pages_limit() << PAGE_SHIFT; pr_debug("Kernel memory limit %lluM, TTM limit %lluM\n", (kfd_mem_limit.max_system_mem_limit >> 20), (kfd_mem_limit.max_ttm_mem_limit >> 20)); |