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From f0be1c63c25b658f20a8b144e1c0bc5b14aeb30c Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Tue, 24 May 2016 17:07:01 -0400
Subject: [PATCH 1437/4131] drm/amdgpu: Remove unnecessary kmapping of HSA GTT
BOs
Kmapping of all HSA GTT BOs is unnecessary and limits the maximum
size of GTT BOs that can be mapped to 4GB.
Change-Id: I2ed8eb7a4e5e2c9403c8ca2ce0530f0179db2694
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 6cf2ec2..a094aa4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -155,13 +155,6 @@ static int try_pin_bo(struct amdgpu_bo *bo, uint32_t domain)
ret = amdgpu_bo_pin(bo, domain, NULL);
if (ret != 0)
goto error;
- if (domain == AMDGPU_GEM_DOMAIN_GTT) {
- ret = amdgpu_bo_kmap(bo, NULL);
- if (ret != 0) {
- pr_err("amdgpu: failed kmap GTT BO\n");
- goto error;
- }
- }
} else {
/* amdgpu_bo_pin doesn't support userptr. Therefore we
* can use the bo->pin_count for our version of
@@ -186,8 +179,6 @@ static int unpin_bo(struct amdgpu_bo *bo)
{
int ret = 0;
- amdgpu_bo_kunmap(bo);
-
if (!amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) {
ret = amdgpu_bo_unpin(bo);
if (ret != 0)
--
2.7.4
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