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From a4dfc4f1e178727a843e8d194dd6d90ec9018df0 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Tue, 4 Jun 2019 09:36:57 -0400
Subject: [PATCH 2060/2940] drm/amd/amdgpu: remove vram_page_split kernel
option (v3)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This option is no longer needed. The default code paths
are now the only option.
v2: Add HPAGE support and a default for non contiguous maps
v3: Misread 512 pages as MiB ...
Change-Id: I4e200d0da8babdf00594f377c426393d1455c15e
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Chaudhary Amit Kumar <Chaudharyamit.Kumar@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 -
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ------
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 --------
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 14 +++++++++-----
4 files changed, 9 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index b99fef62357f..7cda01df7f70 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -144,7 +144,6 @@ extern uint amdgpu_sdma_phase_quantum;
extern char *amdgpu_disable_cu;
extern char *amdgpu_virtual_display;
extern uint amdgpu_pp_feature_mask;
-extern int amdgpu_vram_page_split;
extern int amdgpu_ssg_enabled;
extern int amdgpu_ngg;
extern int amdgpu_prim_buf_per_se;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 10ff0cce4f27..7b6d600ffc2c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1019,12 +1019,6 @@ static int amdgpu_device_check_arguments(struct amdgpu_device *adev)
amdgpu_device_check_block_size(adev);
- if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 ||
- !is_power_of_2(amdgpu_vram_page_split))) {
- dev_warn(adev->dev, "invalid VRAM page split (%d)\n",
- amdgpu_vram_page_split);
- amdgpu_vram_page_split = 1024;
- }
ret = amdgpu_device_get_job_timeout_settings(adev);
if (ret) {
dev_err(adev->dev, "invalid lockup_timeout parameter syntax\n");
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index b7788f4580ba..dfa64c5acf16 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -110,7 +110,6 @@ int amdgpu_vm_fragment_size = -1;
int amdgpu_vm_block_size = -1;
int amdgpu_vm_fault_stop = 0;
int amdgpu_vm_debug = 0;
-int amdgpu_vram_page_split = 512;
int amdgpu_vm_update_mode = -1;
int amdgpu_exp_hw_support = 0;
int amdgpu_dc = -1;
@@ -347,13 +346,6 @@ module_param_named(vm_debug, amdgpu_vm_debug, int, 0644);
MODULE_PARM_DESC(vm_update_mode, "VM update using CPU (0 = never (default except for large BAR(LB)), 1 = Graphics only, 2 = Compute only (default for LB), 3 = Both");
module_param_named(vm_update_mode, amdgpu_vm_update_mode, int, 0444);
-/**
- * DOC: vram_page_split (int)
- * Override the number of pages after we split VRAM allocations (default 512, -1 = disable). The default is 512.
- */
-MODULE_PARM_DESC(vram_page_split, "Number of pages after we split VRAM allocations (default 512, -1 = disable)");
-module_param_named(vram_page_split, amdgpu_vram_page_split, int, 0444);
-
/**
* DOC: exp_hw_support (int)
* Enable experimental hw support (1 = enable). The default is 0 (disabled).
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index ec9ea3fdbb4a..8aea2f21b202 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -284,17 +284,21 @@ static int amdgpu_vram_mgr_new(struct ttm_mem_type_manager *man,
if (!lpfn)
lpfn = man->size;
- if (place->flags & TTM_PL_FLAG_CONTIGUOUS ||
- amdgpu_vram_page_split == -1) {
+ if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
pages_per_node = ~0ul;
num_nodes = 1;
} else {
- pages_per_node = max((uint32_t)amdgpu_vram_page_split,
- mem->page_alignment);
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ pages_per_node = HPAGE_PMD_NR;
+#else
+ /* default to 2MB */
+ pages_per_node = (2UL << (20UL - PAGE_SHIFT));
+#endif
+ pages_per_node = max((uint32_t)pages_per_node, mem->page_alignment);
num_nodes = DIV_ROUND_UP(mem->num_pages, pages_per_node);
}
- nodes = kvmalloc_array(num_nodes, sizeof(*nodes),
+ nodes = kvmalloc_array((uint32_t)num_nodes, sizeof(*nodes),
GFP_KERNEL | __GFP_ZERO);
if (!nodes)
return -ENOMEM;
--
2.17.1
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