From 068a700195329fc4cb18ea837fe18540ceb498a4 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Fri, 3 May 2019 11:58:57 -0700 Subject: [PATCH] iris: leave the top 4Gb of the high heap VMA unused This ports commit 9e7b0988d6e98690eb8902e477b51713a6ef9cae from anv to iris. Thanks to Lionel for noticing that it was missing! --- src/gallium/drivers/iris/iris_bufmgr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/iris/iris_bufmgr.c b/src/gallium/drivers/iris/iris_bufmgr.c index c38b960c5dd..221b21d029c 100644 --- a/src/gallium/drivers/iris/iris_bufmgr.c +++ b/src/gallium/drivers/iris/iris_bufmgr.c @@ -1681,9 +1681,13 @@ iris_bufmgr_init(struct gen_device_info *devinfo, int fd) util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_DYNAMIC], IRIS_MEMZONE_DYNAMIC_START + IRIS_BORDER_COLOR_POOL_SIZE, _4GB_minus_1 - IRIS_BORDER_COLOR_POOL_SIZE); + + /* Leave the last 4GB out of the high vma range, so that no state + * base address + size can overflow 48 bits. + */ util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_OTHER], IRIS_MEMZONE_OTHER_START, - gtt_size - IRIS_MEMZONE_OTHER_START); + (gtt_size - _4GB) - IRIS_MEMZONE_OTHER_START); // XXX: driconf bufmgr->bo_reuse = env_var_as_boolean("bo_reuse", true); -- 2.30.2