[radeon-alex:amd-mainline-dkms-5.0 3711/3724] drivers/gpu//drm/ttm/ttm_bo_vm.c:137:44: error: 'struct vm_fault' has no member named 'virtual_address'
kbuild test robot
lkp at intel.com
Fri Sep 20 08:39:30 UTC 2019
Hi Flora,
FYI, the error/warning still remains.
tree: git://people.freedesktop.org/~agd5f/linux.git amd-mainline-dkms-5.0
head: a51a5ad4b8daf0dd0a437d51a19c2baa98953675
commit: 5165cd1453625e59650a1ed9b0f269b41529e421 [3711/3724] Revert "Revert "drm/amd/autoconf: Test whether vm_fault->{address/vma} is available""
config: i386-allyesconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-13) 7.4.0
reproduce:
git checkout 5165cd1453625e59650a1ed9b0f269b41529e421
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>
All errors (new ones prefixed by >>):
from <command-line>:0:
include/linux/sched/mm.h:234:20: note: previous definition of 'memalloc_nofs_restore' was here
static inline void memalloc_nofs_restore(unsigned int flags)
^~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:61:21: error: redefinition of 'kvmalloc'
static inline void *kvmalloc(size_t size, gfp_t flags)
^~~~~~~~
In file included from include/linux/scatterlist.h:8:0,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from include/kcl/kcl_drm.h:6,
from drivers/gpu//drm/ttm/backport/backport.h:6,
from <command-line>:0:
include/linux/mm.h:602:21: note: previous definition of 'kvmalloc' was here
static inline void *kvmalloc(size_t size, gfp_t flags)
^~~~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:71:21: error: redefinition of 'kvzalloc'
static inline void *kvzalloc(size_t size, gfp_t flags)
^~~~~~~~
In file included from include/linux/scatterlist.h:8:0,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from include/kcl/kcl_drm.h:6,
from drivers/gpu//drm/ttm/backport/backport.h:6,
from <command-line>:0:
include/linux/mm.h:610:21: note: previous definition of 'kvzalloc' was here
static inline void *kvzalloc(size_t size, gfp_t flags)
^~~~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:81:20: error: static declaration of 'kvfree' follows non-static declaration
static inline void kvfree(const void *addr)
^~~~~~
In file included from include/linux/scatterlist.h:8:0,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from include/kcl/kcl_drm.h:6,
from drivers/gpu//drm/ttm/backport/backport.h:6,
from <command-line>:0:
include/linux/mm.h:630:13: note: previous declaration of 'kvfree' was here
extern void kvfree(const void *addr);
^~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:101:21: error: redefinition of 'kvmalloc_array'
static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
^~~~~~~~~~~~~~
In file included from include/linux/scatterlist.h:8:0,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from include/kcl/kcl_drm.h:6,
from drivers/gpu//drm/ttm/backport/backport.h:6,
from <command-line>:0:
include/linux/mm.h:615:21: note: previous definition of 'kvmalloc_array' was here
static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
^~~~~~~~~~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:114:21: error: redefinition of 'kvcalloc'
static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
^~~~~~~~
In file included from include/linux/scatterlist.h:8:0,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from include/kcl/kcl_drm.h:6,
from drivers/gpu//drm/ttm/backport/backport.h:6,
from <command-line>:0:
include/linux/mm.h:625:21: note: previous definition of 'kvcalloc' was here
static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
^~~~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:11:0,
from <command-line>:0:
include/kcl/kcl_mm.h:121:20: error: redefinition of 'mmgrab'
static inline void mmgrab(struct mm_struct *mm)
^~~~~~
In file included from include/kcl/kcl_mm.h:6:0,
from drivers/gpu//drm/ttm/backport/backport.h:11,
from <command-line>:0:
include/linux/sched/mm.h:34:20: note: previous definition of 'mmgrab' was here
static inline void mmgrab(struct mm_struct *mm)
^~~~~~
In file included from drivers/gpu//drm/ttm/backport/backport.h:12:0,
from <command-line>:0:
include/kcl/kcl_list.h:6:20: error: redefinition of 'list_bulk_move_tail'
static inline void list_bulk_move_tail(struct list_head *head,
^~~~~~~~~~~~~~~~~~~
In file included from include/linux/preempt.h:11:0,
from include/linux/rcupdate.h:40,
from include/kcl/kcl_rcupdate.h:4,
from include/kcl/kcl_fence.h:5,
from drivers/gpu//drm/ttm/backport/backport.h:5,
from <command-line>:0:
include/linux/list.h:195:20: note: previous definition of 'list_bulk_move_tail' was here
static inline void list_bulk_move_tail(struct list_head *head,
^~~~~~~~~~~~~~~~~~~
drivers/gpu//drm/ttm/ttm_bo_vm.c: In function 'ttm_bo_vm_fault':
>> drivers/gpu//drm/ttm/ttm_bo_vm.c:137:44: error: 'struct vm_fault' has no member named 'virtual_address'
unsigned long address = (unsigned long)vmf->virtual_address;
^~
cc1: some warnings being treated as errors
vim +137 drivers/gpu//drm/ttm/ttm_bo_vm.c
cbe12e74ee4e29 Thomas Hellstrom 2013-10-09 104
c67fa6edc8b11a Tan Xiaojun 2017-12-25 105 static unsigned long ttm_bo_io_mem_pfn(struct ttm_buffer_object *bo,
c67fa6edc8b11a Tan Xiaojun 2017-12-25 106 unsigned long page_offset)
c67fa6edc8b11a Tan Xiaojun 2017-12-25 107 {
c67fa6edc8b11a Tan Xiaojun 2017-12-25 108 struct ttm_bo_device *bdev = bo->bdev;
c67fa6edc8b11a Tan Xiaojun 2017-12-25 109
c67fa6edc8b11a Tan Xiaojun 2017-12-25 110 if (bdev->driver->io_mem_pfn)
c67fa6edc8b11a Tan Xiaojun 2017-12-25 111 return bdev->driver->io_mem_pfn(bo, page_offset);
c67fa6edc8b11a Tan Xiaojun 2017-12-25 112
e83bf4adf54ad3 Tan Xiaojun 2017-12-25 113 return ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT)
e83bf4adf54ad3 Tan Xiaojun 2017-12-25 114 + page_offset;
c67fa6edc8b11a Tan Xiaojun 2017-12-25 115 }
d37fb8b746a5e8 Anatoli Antonovitch 2019-06-26 116 #if defined(HAVE_2ARGS_VIRTUAL_MM_FAULT_FUNCTION)
1eb7eed2b3f8a5 Evan Quan 2017-05-12 117 static vm_fault_t ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
1eb7eed2b3f8a5 Evan Quan 2017-05-12 118 #else
4daa4fba3a3899 Souptick Joarder 2018-06-02 119 static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf)
1eb7eed2b3f8a5 Evan Quan 2017-05-12 120 #endif
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 121 {
fadbbdd244af97 Flora Cui 2019-09-06 122 #if !defined(HAVE_2ARGS_VIRTUAL_MM_FAULT_FUNCTION)
11bac80004499e Dave Jiang 2017-02-24 123 struct vm_area_struct *vma = vmf->vma;
1eb7eed2b3f8a5 Evan Quan 2017-05-12 124 #endif
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 125 struct ttm_buffer_object *bo = (struct ttm_buffer_object *)
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 126 vma->vm_private_data;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 127 struct ttm_bo_device *bdev = bo->bdev;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 128 unsigned long page_offset;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 129 unsigned long page_last;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 130 unsigned long pfn;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 131 struct ttm_tt *ttm = NULL;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 132 struct page *page;
4daa4fba3a3899 Souptick Joarder 2018-06-02 133 int err;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 134 int i;
4daa4fba3a3899 Souptick Joarder 2018-06-02 135 vm_fault_t ret = VM_FAULT_NOPAGE;
5165cd1453625e Flora Cui 2019-09-11 136 #ifndef HAVE_VM_FAULT_ADDRESS_VMA
1eb7eed2b3f8a5 Evan Quan 2017-05-12 @137 unsigned long address = (unsigned long)vmf->virtual_address;
1eb7eed2b3f8a5 Evan Quan 2017-05-12 138 #else
1a29d85eb0f19b Jan Kara 2016-12-14 139 unsigned long address = vmf->address;
1eb7eed2b3f8a5 Evan Quan 2017-05-12 140 #endif
eba67093f53532 Thomas Hellstrom 2010-11-11 141 struct ttm_mem_type_manager *man =
eba67093f53532 Thomas Hellstrom 2010-11-11 142 &bdev->man[bo->mem.mem_type];
3943875e7b73fd Thomas Hellstrom 2013-11-06 143 struct vm_area_struct cvma;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 144
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 145 /*
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 146 * Work around locking order reversal in fault / nopfn
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 147 * between mmap_sem and bo_reserve: Perform a trylock operation
c58f009e01c918 Thomas Hellstrom 2013-11-14 148 * for reserve, and if it fails, retry the fault after waiting
c58f009e01c918 Thomas Hellstrom 2013-11-14 149 * for the buffer to become unreserved.
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 150 */
1bebc270578bf8 Evan Quan 2019-02-18 151 if (unlikely(!kcl_reservation_object_trylock(bo->resv))) {
c58f009e01c918 Thomas Hellstrom 2013-11-14 152 if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) {
e6b6346419c9f5 Chengming Gui 2019-08-28 153 #ifdef FAULT_FLAG_RETRY_NOWAIT
c58f009e01c918 Thomas Hellstrom 2013-11-14 154 if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
8129fdad387ae3 Thomas Zimmermann 2018-06-21 155 ttm_bo_get(bo);
9bd71d59838222 changzhu 2018-09-30 156 up_read(&vma->vm_mm->mmap_sem);
c58f009e01c918 Thomas Hellstrom 2013-11-14 157 (void) ttm_bo_wait_unreserved(bo);
f44907593d746d Thomas Zimmermann 2018-06-21 158 ttm_bo_put(bo);
c58f009e01c918 Thomas Hellstrom 2013-11-14 159 }
1eb7eed2b3f8a5 Evan Quan 2017-05-12 160 #else
1eb7eed2b3f8a5 Evan Quan 2017-05-12 161 up_read(&vma->vm_mm->mmap_sem);
1eb7eed2b3f8a5 Evan Quan 2017-05-12 162 #endif
c58f009e01c918 Thomas Hellstrom 2013-11-14 163
c58f009e01c918 Thomas Hellstrom 2013-11-14 164 return VM_FAULT_RETRY;
c58f009e01c918 Thomas Hellstrom 2013-11-14 165 }
c58f009e01c918 Thomas Hellstrom 2013-11-14 166
c58f009e01c918 Thomas Hellstrom 2013-11-14 167 /*
c58f009e01c918 Thomas Hellstrom 2013-11-14 168 * If we'd want to change locking order to
c58f009e01c918 Thomas Hellstrom 2013-11-14 169 * mmap_sem -> bo::reserve, we'd use a blocking reserve here
c58f009e01c918 Thomas Hellstrom 2013-11-14 170 * instead of retrying the fault...
c58f009e01c918 Thomas Hellstrom 2013-11-14 171 */
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 172 return VM_FAULT_NOPAGE;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 173 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 174
667a50db0477d4 Thomas Hellstrom 2014-01-03 175 /*
667a50db0477d4 Thomas Hellstrom 2014-01-03 176 * Refuse to fault imported pages. This should be handled
667a50db0477d4 Thomas Hellstrom 2014-01-03 177 * (if at all) by redirecting mmap to the exporter.
667a50db0477d4 Thomas Hellstrom 2014-01-03 178 */
667a50db0477d4 Thomas Hellstrom 2014-01-03 179 if (bo->ttm && (bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 180 ret = VM_FAULT_SIGBUS;
667a50db0477d4 Thomas Hellstrom 2014-01-03 181 goto out_unlock;
667a50db0477d4 Thomas Hellstrom 2014-01-03 182 }
667a50db0477d4 Thomas Hellstrom 2014-01-03 183
82c5da6bf8b55a Jerome Glisse 2010-04-09 184 if (bdev->driver->fault_reserve_notify) {
5d50fcbda7b0ac Christian König 2019-01-11 185 struct dma_fence *moving = dma_fence_get(bo->moving);
5d50fcbda7b0ac Christian König 2019-01-11 186
4daa4fba3a3899 Souptick Joarder 2018-06-02 187 err = bdev->driver->fault_reserve_notify(bo);
4daa4fba3a3899 Souptick Joarder 2018-06-02 188 switch (err) {
82c5da6bf8b55a Jerome Glisse 2010-04-09 189 case 0:
82c5da6bf8b55a Jerome Glisse 2010-04-09 190 break;
82c5da6bf8b55a Jerome Glisse 2010-04-09 191 case -EBUSY:
82c5da6bf8b55a Jerome Glisse 2010-04-09 192 case -ERESTARTSYS:
de8dfb8e3449c7 Tom St Denis 2018-01-26 193 ret = VM_FAULT_NOPAGE;
82c5da6bf8b55a Jerome Glisse 2010-04-09 194 goto out_unlock;
82c5da6bf8b55a Jerome Glisse 2010-04-09 195 default:
de8dfb8e3449c7 Tom St Denis 2018-01-26 196 ret = VM_FAULT_SIGBUS;
82c5da6bf8b55a Jerome Glisse 2010-04-09 197 goto out_unlock;
82c5da6bf8b55a Jerome Glisse 2010-04-09 198 }
5d50fcbda7b0ac Christian König 2019-01-11 199
5d50fcbda7b0ac Christian König 2019-01-11 200 if (bo->moving != moving) {
5d50fcbda7b0ac Christian König 2019-01-11 201 spin_lock(&bdev->glob->lru_lock);
5d50fcbda7b0ac Christian König 2019-01-11 202 ttm_bo_move_to_lru_tail(bo, NULL);
5d50fcbda7b0ac Christian König 2019-01-11 203 spin_unlock(&bdev->glob->lru_lock);
5d50fcbda7b0ac Christian König 2019-01-11 204 }
5d50fcbda7b0ac Christian König 2019-01-11 205 dma_fence_put(moving);
82c5da6bf8b55a Jerome Glisse 2010-04-09 206 }
e024e11070a0a0 Dave Airlie 2009-06-24 207
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 208 /*
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 209 * Wait for buffer data in transit, due to a pipelined
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 210 * move.
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 211 */
1eb7eed2b3f8a5 Evan Quan 2017-05-12 212 ret = ttm_bo_vm_fault_idle(bo, vma, vmf);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 213 if (unlikely(ret != 0)) {
e6b6346419c9f5 Chengming Gui 2019-08-28 214 #ifdef FAULT_FLAG_RETRY_NOWAIT
de8dfb8e3449c7 Tom St Denis 2018-01-26 215 if (ret == VM_FAULT_RETRY &&
3089c1df10e293 Nicolai Hähnle 2017-02-18 216 !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
1eb7eed2b3f8a5 Evan Quan 2017-05-12 217 #else
1eb7eed2b3f8a5 Evan Quan 2017-05-12 218 if (ret == VM_FAULT_RETRY) {
1eb7eed2b3f8a5 Evan Quan 2017-05-12 219 #endif
3089c1df10e293 Nicolai Hähnle 2017-02-18 220 /* The BO has already been unreserved. */
de8dfb8e3449c7 Tom St Denis 2018-01-26 221 return ret;
3089c1df10e293 Nicolai Hähnle 2017-02-18 222 }
3089c1df10e293 Nicolai Hähnle 2017-02-18 223
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 224 goto out_unlock;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 225 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 226
4daa4fba3a3899 Souptick Joarder 2018-06-02 227 err = ttm_mem_io_lock(man, true);
4daa4fba3a3899 Souptick Joarder 2018-06-02 228 if (unlikely(err != 0)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 229 ret = VM_FAULT_NOPAGE;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 230 goto out_unlock;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 231 }
4daa4fba3a3899 Souptick Joarder 2018-06-02 232 err = ttm_mem_io_reserve_vm(bo);
4daa4fba3a3899 Souptick Joarder 2018-06-02 233 if (unlikely(err != 0)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 234 ret = VM_FAULT_SIGBUS;
eba67093f53532 Thomas Hellstrom 2010-11-11 235 goto out_io_unlock;
eba67093f53532 Thomas Hellstrom 2010-11-11 236 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 237
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 238 page_offset = ((address - vma->vm_start) >> PAGE_SHIFT) +
d386735588c3e2 Thomas Hellstrom 2013-12-08 239 vma->vm_pgoff - drm_vma_node_start(&bo->vma_node);
d386735588c3e2 Thomas Hellstrom 2013-12-08 240 page_last = vma_pages(vma) + vma->vm_pgoff -
d386735588c3e2 Thomas Hellstrom 2013-12-08 241 drm_vma_node_start(&bo->vma_node);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 242
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 243 if (unlikely(page_offset >= bo->num_pages)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 244 ret = VM_FAULT_SIGBUS;
eba67093f53532 Thomas Hellstrom 2010-11-11 245 goto out_io_unlock;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 246 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 247
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 248 /*
3943875e7b73fd Thomas Hellstrom 2013-11-06 249 * Make a local vma copy to modify the page_prot member
3943875e7b73fd Thomas Hellstrom 2013-11-06 250 * and vm_flags if necessary. The vma parameter is protected
3943875e7b73fd Thomas Hellstrom 2013-11-06 251 * by mmap_sem in write mode.
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 252 */
3943875e7b73fd Thomas Hellstrom 2013-11-06 253 cvma = *vma;
3943875e7b73fd Thomas Hellstrom 2013-11-06 254 cvma.vm_page_prot = vm_get_page_prot(cvma.vm_flags);
3943875e7b73fd Thomas Hellstrom 2013-11-06 255
82c5da6bf8b55a Jerome Glisse 2010-04-09 256 if (bo->mem.bus.is_iomem) {
3943875e7b73fd Thomas Hellstrom 2013-11-06 257 cvma.vm_page_prot = ttm_io_prot(bo->mem.placement,
3943875e7b73fd Thomas Hellstrom 2013-11-06 258 cvma.vm_page_prot);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 259 } else {
d0cef9fa4411eb Roger He 2017-12-21 260 struct ttm_operation_ctx ctx = {
d0cef9fa4411eb Roger He 2017-12-21 261 .interruptible = false,
aa7662b67bf6f5 Roger He 2018-01-17 262 .no_wait_gpu = false,
aa7662b67bf6f5 Roger He 2018-01-17 263 .flags = TTM_OPT_FLAG_FORCE_ALLOC
aa7662b67bf6f5 Roger He 2018-01-17 264
d0cef9fa4411eb Roger He 2017-12-21 265 };
d0cef9fa4411eb Roger He 2017-12-21 266
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 267 ttm = bo->ttm;
3943875e7b73fd Thomas Hellstrom 2013-11-06 268 cvma.vm_page_prot = ttm_io_prot(bo->mem.placement,
3943875e7b73fd Thomas Hellstrom 2013-11-06 269 cvma.vm_page_prot);
b1e5f172325547 Jerome Glisse 2011-11-02 270
b1e5f172325547 Jerome Glisse 2011-11-02 271 /* Allocate all page at once, most common usage */
25893a14c938d5 Christian König 2018-02-01 272 if (ttm_tt_populate(ttm, &ctx)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 273 ret = VM_FAULT_OOM;
b1e5f172325547 Jerome Glisse 2011-11-02 274 goto out_io_unlock;
b1e5f172325547 Jerome Glisse 2011-11-02 275 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 276 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 277
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 278 /*
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 279 * Speculatively prefault a number of pages. Only error on
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 280 * first page.
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 281 */
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 282 for (i = 0; i < TTM_BO_VM_NUM_PREFAULT; ++i) {
95cf9264d5f36c Tom Lendacky 2017-07-17 283 if (bo->mem.bus.is_iomem) {
18e2e6b7e2735e Anatoli Antonovitch 2019-06-28 284 #ifdef pgprot_decrypted
95cf9264d5f36c Tom Lendacky 2017-07-17 285 /* Iomem should not be marked encrypted */
95cf9264d5f36c Tom Lendacky 2017-07-17 286 cvma.vm_page_prot = pgprot_decrypted(cvma.vm_page_prot);
1eb7eed2b3f8a5 Evan Quan 2017-05-12 287 #endif
c67fa6edc8b11a Tan Xiaojun 2017-12-25 288 pfn = ttm_bo_io_mem_pfn(bo, page_offset);
95cf9264d5f36c Tom Lendacky 2017-07-17 289 } else {
b1e5f172325547 Jerome Glisse 2011-11-02 290 page = ttm->pages[page_offset];
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 291 if (unlikely(!page && i == 0)) {
de8dfb8e3449c7 Tom St Denis 2018-01-26 292 ret = VM_FAULT_OOM;
eba67093f53532 Thomas Hellstrom 2010-11-11 293 goto out_io_unlock;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 294 } else if (unlikely(!page)) {
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 295 break;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 296 }
58aa6622d32af7 Thomas Hellstrom 2014-01-03 297 page->index = drm_vma_node_start(&bo->vma_node) +
58aa6622d32af7 Thomas Hellstrom 2014-01-03 298 page_offset;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 299 pfn = page_to_pfn(page);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 300 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 301
7dfe8b6187f43d Thomas Hellstrom 2014-01-03 302 if (vma->vm_flags & VM_MIXEDMAP)
1eb7eed2b3f8a5 Evan Quan 2017-05-12 303 ret = vmf_insert_mixed(&cvma, address,
bb02f27489fe44 Junwei Zhang 2018-08-22 304 __pfn_to_pfn_t(pfn, PFN_DEV | (bo->ssg_can_map ? PFN_MAP : 0)));
7dfe8b6187f43d Thomas Hellstrom 2014-01-03 305 else
4daa4fba3a3899 Souptick Joarder 2018-06-02 306 ret = vmf_insert_pfn(&cvma, address, pfn);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 307 /*
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 308 * Somebody beat us to this PTE or prefaulting to
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 309 * an already populated PTE, or prefaulting error.
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 310 */
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 311
4daa4fba3a3899 Souptick Joarder 2018-06-02 312 if (unlikely((ret == VM_FAULT_NOPAGE && i > 0)))
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 313 break;
4daa4fba3a3899 Souptick Joarder 2018-06-02 314 else if (unlikely(ret & VM_FAULT_ERROR))
eba67093f53532 Thomas Hellstrom 2010-11-11 315 goto out_io_unlock;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 316
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 317 address += PAGE_SIZE;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 318 if (unlikely(++page_offset >= page_last))
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 319 break;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 320 }
de8dfb8e3449c7 Tom St Denis 2018-01-26 321 ret = VM_FAULT_NOPAGE;
eba67093f53532 Thomas Hellstrom 2010-11-11 322 out_io_unlock:
eba67093f53532 Thomas Hellstrom 2010-11-11 323 ttm_mem_io_unlock(man);
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 324 out_unlock:
1bebc270578bf8 Evan Quan 2019-02-18 325 kcl_reservation_object_unlock(bo->resv);
de8dfb8e3449c7 Tom St Denis 2018-01-26 326 return ret;
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 327 }
ba4e7d973dd09b Thomas Hellstrom 2009-06-10 328
:::::: The code at line 137 was first introduced by commit
:::::: 1eb7eed2b3f8a53b8f348b415501f1ba07cc383c drm/amdkcl: [4.11] fix for uapi/linux/sched/types.h
:::::: TO: Evan Quan <evan.quan at amd.com>
:::::: CC: tianci yin <tianci.yin at amd.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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