From 4b8121817eb5ed90109fc753520eed2b5607d869 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Thu, 13 Apr 2017 14:56:28 -0400 Subject: [PATCH] drm/amdgpu: Raise KFD system memory limits to 29/32 Change-Id: I6ab918e3c05b6079154d97e76e473c3820f136e5 Signed-off-by: Felix Kuehling --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index f1a6e3ca89b29..fbf2ba741a182 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -94,8 +94,8 @@ static bool check_if_add_bo_to_vm(struct amdgpu_vm *avm, } /* Set memory usage limits. Current, limits are - * System (TTM + userptr) memory - 3/4th System RAM - * TTM memory - 3/8th System RAM + * System (TTM + userptr) memory - 29/32th System RAM + * TTM memory - 29/32th System RAM */ void amdgpu_amdkfd_gpuvm_init_mem_limits(void) { @@ -107,8 +107,8 @@ void amdgpu_amdkfd_gpuvm_init_mem_limits(void) mem *= si.mem_unit; spin_lock_init(&kfd_mem_limit.mem_limit_lock); - kfd_mem_limit.max_system_mem_limit = (mem >> 1) + (mem >> 2); - kfd_mem_limit.max_ttm_mem_limit = (mem >> 1) - (mem >> 3); + kfd_mem_limit.max_system_mem_limit = mem - (3 * (mem >> 5)); /* 29/32 */ + kfd_mem_limit.max_ttm_mem_limit = mem - (3 * (mem >> 5)); /* 29/32 */ 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));