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path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3732-drm-ttm-use-an-operation-ctx-for-ttm_mem_global_allo.patch
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From 012588f2adc3bcf8a12fb7d158a0721260d04f37 Mon Sep 17 00:00:00 2001
From: Roger He <Hongbo.He@amd.com>
Date: Fri, 8 Dec 2017 15:21:18 +0800
Subject: [PATCH 3732/4131] drm/ttm: use an operation ctx for
 ttm_mem_global_alloc_page
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

forward the operation context to ttm_mem_global_alloc_page as well,
and the ultimate goal is swapout enablement for reserved BOs.

Here reserved BOs refer to all the BOs which share same reservation object

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/ttm/ttm_memory.c         | 10 +++-------
 drivers/gpu/drm/ttm/ttm_page_alloc.c     |  6 +++++-
 drivers/gpu/drm/ttm/ttm_page_alloc_dma.c |  9 +++++++--
 3 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index ed43a6b..c1cbefe 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -545,15 +545,11 @@ int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
 EXPORT_SYMBOL(ttm_mem_global_alloc);
 
 int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
-			      struct page *page,
-			      bool no_wait, bool interruptible)
+				struct page *page, uint64_t size,
+				struct ttm_operation_ctx *ctx)
 {
 
 	struct ttm_mem_zone *zone = NULL;
-	struct ttm_operation_ctx ctx = {
-		.interruptible = false,
-		.no_wait_gpu = false
-	};
 
 	/**
 	 * Page allocations may be registed in a single zone
@@ -567,7 +563,7 @@ int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
 	if (glob->zone_dma32 && page_to_pfn(page) > 0x00100000UL)
 		zone = glob->zone_kernel;
 #endif
-	return ttm_mem_global_alloc_zone(glob, zone, size, &ctx);
+	return ttm_mem_global_alloc_zone(glob, zone, size, ctx);
 }
 
 void ttm_mem_global_free_page(struct ttm_mem_global *glob, struct page *page)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index cd2d4de..ae8ec03 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -869,6 +869,10 @@ void ttm_page_alloc_fini(void)
 int ttm_pool_populate(struct ttm_tt *ttm)
 {
 	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
+	struct ttm_operation_ctx ctx = {
+		.interruptible = false,
+		.no_wait_gpu = false
+	};
 	unsigned i;
 	int ret;
 
@@ -885,7 +889,7 @@ int ttm_pool_populate(struct ttm_tt *ttm)
 		}
 
 		ret = ttm_mem_global_alloc_page(mem_glob, ttm->pages[i],
-						false, false);
+							PAGE_SIZE, &ctx);
 		if (unlikely(ret != 0)) {
 			ttm_pool_unpopulate(ttm);
 			return -ENOMEM;
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index 90ddbdc..f9e8307 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -878,7 +878,12 @@ static int ttm_dma_pool_get_pages(struct dma_pool *pool,
 int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev)
 {
 	struct ttm_tt *ttm = &ttm_dma->ttm;
-	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
+        struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
+	struct ttm_operation_ctx ctx = {
+		.interruptible = false,
+		.no_wait_gpu = false
+	};
+	unsigned long num_pages = ttm->num_pages;
 	struct dma_pool *pool;
 	enum pool_type type;
 	unsigned i;
@@ -913,7 +918,7 @@ int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev)
 		}
 
 		ret = ttm_mem_global_alloc_page(mem_glob, ttm->pages[i],
-						false, false);
+						pool->size, &ctx);
 		if (unlikely(ret != 0)) {
 			ttm_dma_unpopulate(ttm_dma, dev);
 			return -ENOMEM;
-- 
2.7.4