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From f80903c5950399758f2bce1975966272f6d4bcbb Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Thu, 13 Apr 2017 14:56:28 -0400
Subject: [PATCH 1709/4131] drm/amdgpu: Raise KFD system memory limits to 15/16
Change-Id: I6ab918e3c05b6079154d97e76e473c3820f136e5
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
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 2878ef6..3c65aaf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -101,8 +101,8 @@ static bool check_if_add_bo_to_vm(struct amdgpu_vm *avm,
}
/* Set memory usage limits. Current, limits are
- * System (kernel) memory - 3/8th System RAM
- * Userptr memory - 3/4th System RAM
+ * System (kernel) memory - 15/16th System RAM
+ * Userptr memory - 15/16th System RAM
*/
void amdgpu_amdkfd_gpuvm_init_mem_limits(void)
{
@@ -114,8 +114,8 @@ 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 >> 3);
- kfd_mem_limit.max_userptr_mem_limit = mem - (mem >> 2);
+ kfd_mem_limit.max_system_mem_limit = mem - (mem >> 4); /* 15/16 */
+ kfd_mem_limit.max_userptr_mem_limit = mem - (mem >> 4); /* 15/16 */
pr_debug("Kernel memory limit %lluM, userptr limit %lluM\n",
(kfd_mem_limit.max_system_mem_limit >> 20),
(kfd_mem_limit.max_userptr_mem_limit >> 20));
--
2.7.4
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