diff options
Diffstat (limited to 'meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/5674-drm-amdkfd-Don-t-use-kmap_atomic.patch')
| -rw-r--r-- | meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/5674-drm-amdkfd-Don-t-use-kmap_atomic.patch | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/5674-drm-amdkfd-Don-t-use-kmap_atomic.patch b/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/5674-drm-amdkfd-Don-t-use-kmap_atomic.patch deleted file mode 100644 index 1e5d8b68..00000000 --- a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/5674-drm-amdkfd-Don-t-use-kmap_atomic.patch +++ /dev/null @@ -1,52 +0,0 @@ -From 8d0304033d057267bdd902ae3bc2d05619b8f123 Mon Sep 17 00:00:00 2001 -From: Felix Kuehling <Felix.Kuehling@amd.com> -Date: Fri, 4 May 2018 18:59:38 -0400 -Subject: [PATCH 5674/5725] drm/amdkfd: Don't use kmap_atomic - -kmap_atomic is an optimization that's only useful for CONFIG_HIGHMEM -which isn't applicable on x86_64. It also requires a lot more care -because it disabled page faults. This causes problems with -copy_from_user in the atomic section unless pages are faulted in -explicitly. - -Since KFD only supports 64-bit kernels, we don't need to handle the -complication of HIGHMEM and kmap_atomic. Use plain kmap instead. - -Bug: SWDEV-138474 - -Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> -Signed-off-by: Kalyan Alle <kalyan.alle@amd.com> - -Conflicts: - drivers/gpu/drm/amd/amdkfd/kfd_chardev.c - -Change-Id: I6ecbd7c10fb8b589dc1ab8af8795ff3e6d416db1 ---- - drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -index 73338f0..9ec224c 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -@@ -2100,7 +2100,7 @@ static int kfd_copy_userptr_bos(struct cma_iter *si, struct cma_iter *di, - - for (i = 0; i < nl; i++) { - unsigned int n; -- void *kaddr = kmap_atomic(process_pages[i]); -+ void *kaddr = kmap(process_pages[i]); - - if (cma_write) { - n = copy_from_user(kaddr+offset_in_page, -@@ -2111,7 +2111,7 @@ static int kfd_copy_userptr_bos(struct cma_iter *si, struct cma_iter *di, - kaddr+offset_in_page, - copy_size); - } -- kunmap_atomic(kaddr); -+ kunmap(kaddr); - if (n) { - ret = -EFAULT; - break; --- -2.7.4 - |