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From 76dc0f4898902fdbdf9c5c231b854ca717b437d1 Mon Sep 17 00:00:00 2001
From: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Date: Wed, 19 Oct 2016 17:37:59 -0400
Subject: [PATCH 1543/4131] drm/amdgpu: Fix KFD System Memory usage limit
Change-Id: I0b0bb2a0672b33d06c7fac51ef56b816640f9103
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 5b6fd44..9b3ee7e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -73,7 +73,7 @@ static bool check_if_add_bo_to_vm(struct amdgpu_vm *avm,
}
/* Set memory usage limits. Current, limits are
- * System (kernel) memory - 1/4th System RAM
+ * System (kernel) memory - 3/8th System RAM
* Userptr memory - 3/4th System RAM
*/
void amdgpu_amdkfd_gpuvm_init_mem_limits(void)
@@ -86,8 +86,8 @@ 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 >> 2) - (mem >> 4);
- kfd_mem_limit.max_userptr_mem_limit = mem - (mem >> 4);
+ kfd_mem_limit.max_system_mem_limit = (mem >> 1) - (mem >> 3);
+ kfd_mem_limit.max_userptr_mem_limit = mem - (mem >> 2);
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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