xref: /OK3568_Linux_fs/kernel/drivers/gpu/drm/bochs/bochs_mm.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  */
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include "bochs.h"
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun /* ---------------------------------------------------------------------- */
8*4882a593Smuzhiyun 
bochs_mm_init(struct bochs_device * bochs)9*4882a593Smuzhiyun int bochs_mm_init(struct bochs_device *bochs)
10*4882a593Smuzhiyun {
11*4882a593Smuzhiyun 	struct drm_vram_mm *vmm;
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun 	vmm = drm_vram_helper_alloc_mm(bochs->dev, bochs->fb_base,
14*4882a593Smuzhiyun 				       bochs->fb_size);
15*4882a593Smuzhiyun 	return PTR_ERR_OR_ZERO(vmm);
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun 
bochs_mm_fini(struct bochs_device * bochs)18*4882a593Smuzhiyun void bochs_mm_fini(struct bochs_device *bochs)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun 	if (!bochs->dev->vram_mm)
21*4882a593Smuzhiyun 		return;
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun 	drm_vram_helper_release_mm(bochs->dev);
24*4882a593Smuzhiyun }
25