From b0436f0fe8d1fefe9eec2471094202e6f6c532f6 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu, 10 Jun 2021 09:01:51 +0200
Subject: drm/vma: Add a driver_private member to vma_node.
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Git-commit: f425821b946847282708121600fffc20344183a0
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
This allows drivers to distinguish between different types of vma_node's.
The readonly flag was unused and is thus removed.
This is a temporary solution, until i915 is converted completely to
use ttm for bo's.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch> #irc
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210610070152.572423-4-thomas.hellstrom@linux.intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_gem.c | 9 ---------
include/drm/drm_vma_manager.h | 2 +-
2 files changed, 1 insertion(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index d62fb1a3c916..ba2e64ed8b47 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1148,15 +1148,6 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
return -EACCES;
}
- if (node->readonly) {
- if (vma->vm_flags & VM_WRITE) {
- drm_gem_object_put(obj);
- return -EINVAL;
- }
-
- vma->vm_flags &= ~VM_MAYWRITE;
- }
-
ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT,
vma);
diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index 76ac5e97a559..4f8c35206f7c 100644
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -53,7 +53,7 @@ struct drm_vma_offset_node {
rwlock_t vm_lock;
struct drm_mm_node vm_node;
struct rb_root vm_files;
- bool readonly:1;
+ void *driver_private;
};
struct drm_vma_offset_manager {
--
2.38.1