[PATCH] drm/i915/gt: Report full vm address range

[PATCH] drm/i915/gt: Report full vm address range

[Andi Shyti]

Commit 9bb66c179f50 ("drm/i915: Reserve some kernel space per
vm") has reserved an object for kernel space usage.

Userspace, though, needs to know the full address range.

Fixes: 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm")
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Chris Wilson <chris.p.wilson@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Michal Mrozek <michal.mrozek@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: <stable@vger.kernel.org> # v6.2+
---
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index fa46d2308b0e..d76831f50106 100644
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -982,8 +982,9 @@ static int gen8_init_rsvd(struct i915_address_space *vm)
 
 	vm->rsvd.vma = i915_vma_make_unshrinkable(vma);
 	vm->rsvd.obj = obj;
-	vm->total -= vma->node.size;
+
 	return 0;
+
 unref:
 	i915_gem_object_put(obj);
 	return ret;
-- 
2.43.0

✗ Fi.CI.BAT: failure for drm/i915/gt: Report full vm address range

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 15569 bytes --]

== Series Details ==

Series: drm/i915/gt: Report full vm address range
URL   : https://patchwork.freedesktop.org/series/131095/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_14428 -> Patchwork_131095v1
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_131095v1 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_131095v1, please notify your bug team (I915-ci-infra@lists.freedesktop.org) to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/index.html

Participating hosts (35 -> 32)
------------------------------

  Additional (1): fi-glk-j4005 
  Missing    (4): bat-kbl-2 bat-dg1-7 bat-arls-2 fi-snb-2520m 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_131095v1:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_softpin@allocator-basic:
    - bat-dg2-14:         [PASS][1] -> [FAIL][2] +3 other tests fail
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-14/igt@gem_softpin@allocator-basic.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-14/igt@gem_softpin@allocator-basic.html

  * igt@gem_softpin@allocator-basic-reserve:
    - bat-atsm-1:         [PASS][3] -> [FAIL][4] +2 other tests fail
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-atsm-1/igt@gem_softpin@allocator-basic-reserve.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-atsm-1/igt@gem_softpin@allocator-basic-reserve.html
    - bat-dg2-9:          [PASS][5] -> [FAIL][6] +2 other tests fail
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-9/igt@gem_softpin@allocator-basic-reserve.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-9/igt@gem_softpin@allocator-basic-reserve.html
    - bat-dg2-8:          [PASS][7] -> [FAIL][8] +2 other tests fail
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-8/igt@gem_softpin@allocator-basic-reserve.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-8/igt@gem_softpin@allocator-basic-reserve.html

  * igt@i915_selftest@live@gtt:
    - bat-atsm-1:         [PASS][9] -> [DMESG-FAIL][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-atsm-1/igt@i915_selftest@live@gtt.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-atsm-1/igt@i915_selftest@live@gtt.html
    - fi-cfl-guc:         [PASS][11] -> [DMESG-FAIL][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-cfl-guc/igt@i915_selftest@live@gtt.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-guc/igt@i915_selftest@live@gtt.html
    - bat-jsl-3:          [PASS][13] -> [DMESG-FAIL][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-jsl-3/igt@i915_selftest@live@gtt.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-3/igt@i915_selftest@live@gtt.html
    - fi-kbl-x1275:       [PASS][15] -> [DMESG-FAIL][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-kbl-x1275/igt@i915_selftest@live@gtt.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-kbl-x1275/igt@i915_selftest@live@gtt.html
    - fi-cfl-8109u:       NOTRUN -> [DMESG-FAIL][17]
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8109u/igt@i915_selftest@live@gtt.html
    - bat-adln-1:         [PASS][18] -> [DMESG-FAIL][19]
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-adln-1/igt@i915_selftest@live@gtt.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-adln-1/igt@i915_selftest@live@gtt.html
    - bat-dg2-8:          [PASS][20] -> [DMESG-FAIL][21]
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-8/igt@i915_selftest@live@gtt.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-8/igt@i915_selftest@live@gtt.html
    - fi-kbl-guc:         [PASS][22] -> [DMESG-FAIL][23]
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-kbl-guc/igt@i915_selftest@live@gtt.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-kbl-guc/igt@i915_selftest@live@gtt.html
    - bat-adls-6:         [PASS][24] -> [DMESG-FAIL][25]
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-adls-6/igt@i915_selftest@live@gtt.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-adls-6/igt@i915_selftest@live@gtt.html
    - bat-adlm-1:         [PASS][26] -> [DMESG-FAIL][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-adlm-1/igt@i915_selftest@live@gtt.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-adlm-1/igt@i915_selftest@live@gtt.html
    - bat-jsl-1:          NOTRUN -> [DMESG-FAIL][28]
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@i915_selftest@live@gtt.html
    - fi-tgl-1115g4:      [PASS][29] -> [DMESG-FAIL][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-tgl-1115g4/igt@i915_selftest@live@gtt.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-tgl-1115g4/igt@i915_selftest@live@gtt.html
    - bat-arls-1:         [PASS][31] -> [DMESG-FAIL][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-arls-1/igt@i915_selftest@live@gtt.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-arls-1/igt@i915_selftest@live@gtt.html
    - bat-adlp-6:         [PASS][33] -> [DMESG-FAIL][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-adlp-6/igt@i915_selftest@live@gtt.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-adlp-6/igt@i915_selftest@live@gtt.html
    - bat-mtlp-6:         [PASS][35] -> [DMESG-FAIL][36]
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-mtlp-6/igt@i915_selftest@live@gtt.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-mtlp-6/igt@i915_selftest@live@gtt.html
    - bat-rpls-3:         [PASS][37] -> [DMESG-FAIL][38]
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-rpls-3/igt@i915_selftest@live@gtt.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-rpls-3/igt@i915_selftest@live@gtt.html
    - fi-glk-j4005:       NOTRUN -> [DMESG-FAIL][39]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-glk-j4005/igt@i915_selftest@live@gtt.html
    - bat-adlp-9:         [PASS][40] -> [DMESG-FAIL][41]
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-adlp-9/igt@i915_selftest@live@gtt.html
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-adlp-9/igt@i915_selftest@live@gtt.html
    - fi-kbl-7567u:       [PASS][42] -> [DMESG-FAIL][43]
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-kbl-7567u/igt@i915_selftest@live@gtt.html
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-kbl-7567u/igt@i915_selftest@live@gtt.html
    - fi-cfl-8700k:       [PASS][44] -> [DMESG-FAIL][45]
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-cfl-8700k/igt@i915_selftest@live@gtt.html
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8700k/igt@i915_selftest@live@gtt.html
    - bat-dg2-14:         [PASS][46] -> [DMESG-FAIL][47]
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-14/igt@i915_selftest@live@gtt.html
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-14/igt@i915_selftest@live@gtt.html
    - fi-bsw-nick:        [PASS][48] -> [DMESG-FAIL][49]
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-bsw-nick/igt@i915_selftest@live@gtt.html
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-bsw-nick/igt@i915_selftest@live@gtt.html
    - bat-rplp-1:         [PASS][50] -> [DMESG-FAIL][51]
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-rplp-1/igt@i915_selftest@live@gtt.html
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-rplp-1/igt@i915_selftest@live@gtt.html
    - fi-rkl-11600:       [PASS][52] -> [DMESG-FAIL][53]
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-rkl-11600/igt@i915_selftest@live@gtt.html
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-rkl-11600/igt@i915_selftest@live@gtt.html

  * igt@i915_selftest@live@hangcheck:
    - bat-dg2-8:          [PASS][54] -> [ABORT][55]
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-8/igt@i915_selftest@live@hangcheck.html
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-8/igt@i915_selftest@live@hangcheck.html

  
#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * igt@i915_pm_rpm@module-reload:
    - {bat-mtlp-9}:       [PASS][56] -> [CRASH][57]
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-mtlp-9/igt@i915_pm_rpm@module-reload.html
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-mtlp-9/igt@i915_pm_rpm@module-reload.html

  * igt@i915_selftest@live@gtt:
    - {bat-mtlp-9}:       [PASS][58] -> [DMESG-FAIL][59]
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-mtlp-9/igt@i915_selftest@live@gtt.html
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-mtlp-9/igt@i915_selftest@live@gtt.html
    - {bat-arls-4}:       [PASS][60] -> [DMESG-FAIL][61]
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-arls-4/igt@i915_selftest@live@gtt.html
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-arls-4/igt@i915_selftest@live@gtt.html

  
Known issues
------------

  Here are the changes found in Patchwork_131095v1 that come from known issues:

### CI changes ###

#### Possible fixes ####

  * boot:
    - bat-jsl-1:          [FAIL][62] ([i915#8293]) -> [PASS][63]
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-jsl-1/boot.html
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/boot.html
    - fi-cfl-8109u:       [FAIL][64] ([i915#8293]) -> [PASS][65]
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/fi-cfl-8109u/boot.html
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8109u/boot.html

  

### IGT changes ###

#### Issues hit ####

  * igt@debugfs_test@basic-hwmon:
    - bat-jsl-1:          NOTRUN -> [SKIP][66] ([i915#9318])
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@debugfs_test@basic-hwmon.html

  * igt@gem_huc_copy@huc-copy:
    - fi-cfl-8109u:       NOTRUN -> [SKIP][67] ([i915#2190])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8109u/igt@gem_huc_copy@huc-copy.html
    - bat-jsl-1:          NOTRUN -> [SKIP][68] ([i915#2190])
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@gem_huc_copy@huc-copy.html
    - fi-glk-j4005:       NOTRUN -> [SKIP][69] ([i915#2190])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-glk-j4005/igt@gem_huc_copy@huc-copy.html

  * igt@gem_lmem_swapping@basic:
    - fi-glk-j4005:       NOTRUN -> [SKIP][70] ([i915#4613]) +3 other tests skip
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-glk-j4005/igt@gem_lmem_swapping@basic.html

  * igt@gem_lmem_swapping@verify-random:
    - fi-cfl-8109u:       NOTRUN -> [SKIP][71] ([i915#4613]) +3 other tests skip
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8109u/igt@gem_lmem_swapping@verify-random.html
    - bat-jsl-1:          NOTRUN -> [SKIP][72] ([i915#4613]) +3 other tests skip
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@gem_lmem_swapping@verify-random.html

  * igt@i915_selftest@live@migrate:
    - bat-dg2-9:          [PASS][73] -> [ABORT][74] ([i915#10366])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-dg2-9/igt@i915_selftest@live@migrate.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-dg2-9/igt@i915_selftest@live@migrate.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-glk-j4005:       NOTRUN -> [SKIP][75] +10 other tests skip
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-glk-j4005/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - bat-jsl-1:          NOTRUN -> [SKIP][76] ([i915#4103]) +1 other test skip
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_dsc@dsc-basic:
    - bat-jsl-1:          NOTRUN -> [SKIP][77] ([i915#3555] / [i915#9886])
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@kms_dsc@dsc-basic.html

  * igt@kms_force_connector_basic@force-load-detect:
    - bat-jsl-1:          NOTRUN -> [SKIP][78]
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@kms_force_connector_basic@force-load-detect.html

  * igt@kms_pm_backlight@basic-brightness:
    - fi-cfl-8109u:       NOTRUN -> [SKIP][79] +11 other tests skip
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/fi-cfl-8109u/igt@kms_pm_backlight@basic-brightness.html

  * igt@kms_setmode@basic-clone-single-crtc:
    - bat-jsl-1:          NOTRUN -> [SKIP][80] ([i915#3555])
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-jsl-1/igt@kms_setmode@basic-clone-single-crtc.html

  
#### Possible fixes ####

  * igt@kms_pm_rpm@basic-rte:
    - {bat-mtlp-9}:       [DMESG-WARN][81] -> [PASS][82]
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14428/bat-mtlp-9/igt@kms_pm_rpm@basic-rte.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/bat-mtlp-9/igt@kms_pm_rpm@basic-rte.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#10366]: https://gitlab.freedesktop.org/drm/intel/issues/10366
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#8293]: https://gitlab.freedesktop.org/drm/intel/issues/8293
  [i915#9318]: https://gitlab.freedesktop.org/drm/intel/issues/9318
  [i915#9886]: https://gitlab.freedesktop.org/drm/intel/issues/9886


Build changes
-------------

  * Linux: CI_DRM_14428 -> Patchwork_131095v1

  CI-20190529: 20190529
  CI_DRM_14428: 790a1d4e546a1d7f1cc5316c77f21379a4083250 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7760: 7760
  Patchwork_131095v1: 790a1d4e546a1d7f1cc5316c77f21379a4083250 @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

1d0007feff06 drm/i915/gt: Report full vm address range

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v1/index.html

[-- Attachment #2: Type: text/html, Size: 17238 bytes --]

RE: [PATCH] drm/i915/gt: Report full vm address range

[Mrozek, Michal]

Commit 9bb66c179f50 ("drm/i915: Reserve some kernel space per
vm") has reserved an object for kernel space usage.

Userspace, though, needs to know the full address range.

Fixes: 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm")
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Chris Wilson <chris.p.wilson@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Michal Mrozek <michal.mrozek@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: <stable@vger.kernel.org> # v6.2+
---
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index fa46d2308b0e..d76831f50106 100644
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -982,8 +982,9 @@ static int gen8_init_rsvd(struct i915_address_space *vm)
 
 	vm->rsvd.vma = i915_vma_make_unshrinkable(vma);
 	vm->rsvd.obj = obj;
-	vm->total -= vma->node.size;
+
 	return 0;
+
 unref:
 	i915_gem_object_put(obj);
 	return ret;
-- 
2.43.0

Acked-by: Michal Mrozek <michal.mrozek@intel.com>

Re: [PATCH] drm/i915/gt: Report full vm address range

[Lionel Landwerlin]

Hi Andi,

In Mesa we've been relying on I915_CONTEXT_PARAM_GTT_SIZE so as long as 
that is adjusted by the kernel, we should be able to continue working 
without issues.

Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

Thanks,

-Lionel

On 13/03/2024 21:39, Andi Shyti wrote:
> Commit 9bb66c179f50 ("drm/i915: Reserve some kernel space per
> vm") has reserved an object for kernel space usage.
>
> Userspace, though, needs to know the full address range.
>
> Fixes: 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm")
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Cc: Andrzej Hajda <andrzej.hajda@intel.com>
> Cc: Chris Wilson <chris.p.wilson@linux.intel.com>
> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
> Cc: Michal Mrozek <michal.mrozek@intel.com>
> Cc: Nirmoy Das <nirmoy.das@intel.com>
> Cc: <stable@vger.kernel.org> # v6.2+
> ---
>   drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> index fa46d2308b0e..d76831f50106 100644
> --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> @@ -982,8 +982,9 @@ static int gen8_init_rsvd(struct i915_address_space *vm)
>   
>   	vm->rsvd.vma = i915_vma_make_unshrinkable(vma);
>   	vm->rsvd.obj = obj;
> -	vm->total -= vma->node.size;
> +
>   	return 0;
> +
>   unref:
>   	i915_gem_object_put(obj);
>   	return ret;

Re: [PATCH] drm/i915/gt: Report full vm address range

[Nirmoy Das]

On 3/14/2024 3:04 PM, Lionel Landwerlin wrote:
> Hi Andi,
>
> In Mesa we've been relying on I915_CONTEXT_PARAM_GTT_SIZE so as long 
> as that is adjusted by the kernel

What do you mean by adjusted by, should it be a aligned size?

I915_CONTEXT_PARAM_GTT_SIZE ioctl is returning vm->total which is 
adjusted(reduced by a page).

This patch might cause silent error as it is not removing WABB which is 
using the reserved page to add dummy blt and if userspace is using that

page then it will be overwritten.


Regards,

Nirmoy

> , we should be able to continue working without issues.
>
> Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
>
> Thanks,
>
> -Lionel
>
> On 13/03/2024 21:39, Andi Shyti wrote:
>> Commit 9bb66c179f50 ("drm/i915: Reserve some kernel space per
>> vm") has reserved an object for kernel space usage.
>>
>> Userspace, though, needs to know the full address range.
>>
>> Fixes: 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm")
>> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
>> Cc: Andrzej Hajda <andrzej.hajda@intel.com>
>> Cc: Chris Wilson <chris.p.wilson@linux.intel.com>
>> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
>> Cc: Michal Mrozek <michal.mrozek@intel.com>
>> Cc: Nirmoy Das <nirmoy.das@intel.com>
>> Cc: <stable@vger.kernel.org> # v6.2+
>> ---
>>   drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c 
>> b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
>> index fa46d2308b0e..d76831f50106 100644
>> --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
>> +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
>> @@ -982,8 +982,9 @@ static int gen8_init_rsvd(struct 
>> i915_address_space *vm)
>>         vm->rsvd.vma = i915_vma_make_unshrinkable(vma);
>>       vm->rsvd.obj = obj;
>> -    vm->total -= vma->node.size;
>> +
>>       return 0;
>> +
>>   unref:
>>       i915_gem_object_put(obj);
>>       return ret;
>
>

Re: [PATCH] drm/i915/gt: Report full vm address range

[Andi Shyti]

Hi Nirmoy,

> > In Mesa we've been relying on I915_CONTEXT_PARAM_GTT_SIZE so as long as
> > that is adjusted by the kernel
> 
> What do you mean by adjusted by, should it be a aligned size?
> 
> I915_CONTEXT_PARAM_GTT_SIZE ioctl is returning vm->total which is
> adjusted(reduced by a page).
> 
> This patch might cause silent error as it is not removing WABB which is
> using the reserved page to add dummy blt and if userspace is using that
> 
> page then it will be overwritten.

yes, I think this could happen, but there is no solution,
unfortunately. We need to fail at some point.

On the other hand, I think mesa is miscalculating the vm size. In
userspace the total size is derived by the bit size
(maxNBitValue()).

By doing so, I guess there will always be cases of
miscalculation.

There are two solutions here:

 1. we track two sizes, one the true available size and one the
    total size. But this looks like a dirty hack to me.
 2. UMD fixes the size calculation by taking for granted what the
    driver provides and we don't have anything to do in KMD.

Lionel, Michal, thoughts?

Andi

RE: [PATCH] drm/i915/gt: Report full vm address range

[Mrozek, Michal]

> > Lionel, Michal, thoughts?
Compute UMD needs to know exact GTT total size.

Re: [PATCH] drm/i915/gt: Report full vm address range

[Andi Shyti]

Hi Michal,

On Mon, Mar 18, 2024 at 05:21:54AM +0000, Mrozek, Michal wrote:
> > > Lionel, Michal, thoughts?
> Compute UMD needs to know exact GTT total size.

the problem is that we cannot apply the workaround without
reserving one page from the GTT total size and we need to apply
the workaround.

If we provide the total GTT size we will have one page that will
be contended between kernel and userspace and, if userspace is
unaware that the page belongs to the kernel, we might step on
each other toe.

The ask here from kernel side is to relax the check on the
maxNBitValue() in userspace and take what the kernel provides.

Thanks,
Andi

RE: [PATCH] drm/i915/gt: Report full vm address range

[Mrozek, Michal]

> If we provide the total GTT size we will have one page that will be contended between kernel and userspace and, if userspace is unaware that the page belongs to the > kernel, we might step on each other toe.

That's fine, Compute needs to know total GTT size.
Not available GTT size.

✗ Fi.CI.CHECKPATCH: warning for drm/i915/gt: Report full vm address range (rev2)

[Patchwork]

== Series Details ==

Series: drm/i915/gt: Report full vm address range (rev2)
URL   : https://patchwork.freedesktop.org/series/131095/
State : warning

== Summary ==

Error: dim checkpatch failed
de74046741ce drm/i915/gt: Report full vm address range
-:20: WARNING:BAD_SIGN_OFF: Duplicate signature
#20: 
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>

total: 0 errors, 1 warnings, 0 checks, 10 lines checked

✗ Fi.CI.BAT: failure for drm/i915/gt: Report full vm address range (rev2)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 11059 bytes --]

== Series Details ==

Series: drm/i915/gt: Report full vm address range (rev2)
URL   : https://patchwork.freedesktop.org/series/131095/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_14433 -> Patchwork_131095v2
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_131095v2 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_131095v2, please notify your bug team (I915-ci-infra@lists.freedesktop.org) to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/index.html

Participating hosts (37 -> 34)
------------------------------

  Missing    (3): bat-dg1-7 fi-glk-j4005 fi-snb-2520m 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_131095v2:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_softpin@allocator-basic:
    - bat-dg2-14:         [PASS][1] -> [FAIL][2] +3 other tests fail
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-14/igt@gem_softpin@allocator-basic.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-14/igt@gem_softpin@allocator-basic.html

  * igt@gem_softpin@allocator-basic-reserve:
    - bat-atsm-1:         [PASS][3] -> [FAIL][4] +2 other tests fail
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-atsm-1/igt@gem_softpin@allocator-basic-reserve.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-atsm-1/igt@gem_softpin@allocator-basic-reserve.html
    - bat-dg2-9:          [PASS][5] -> [FAIL][6] +2 other tests fail
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-9/igt@gem_softpin@allocator-basic-reserve.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-9/igt@gem_softpin@allocator-basic-reserve.html
    - bat-dg2-8:          [PASS][7] -> [FAIL][8] +2 other tests fail
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-8/igt@gem_softpin@allocator-basic-reserve.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-8/igt@gem_softpin@allocator-basic-reserve.html

  * igt@i915_selftest@live@gtt:
    - bat-atsm-1:         [PASS][9] -> [DMESG-FAIL][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-atsm-1/igt@i915_selftest@live@gtt.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-atsm-1/igt@i915_selftest@live@gtt.html
    - fi-cfl-guc:         [PASS][11] -> [DMESG-FAIL][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-cfl-guc/igt@i915_selftest@live@gtt.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-cfl-guc/igt@i915_selftest@live@gtt.html
    - bat-jsl-3:          [PASS][13] -> [DMESG-FAIL][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-jsl-3/igt@i915_selftest@live@gtt.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-jsl-3/igt@i915_selftest@live@gtt.html
    - bat-dg2-9:          [PASS][15] -> [DMESG-FAIL][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-9/igt@i915_selftest@live@gtt.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-9/igt@i915_selftest@live@gtt.html
    - fi-kbl-x1275:       [PASS][17] -> [DMESG-FAIL][18]
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-kbl-x1275/igt@i915_selftest@live@gtt.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-kbl-x1275/igt@i915_selftest@live@gtt.html
    - fi-cfl-8109u:       [PASS][19] -> [DMESG-FAIL][20]
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-cfl-8109u/igt@i915_selftest@live@gtt.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-cfl-8109u/igt@i915_selftest@live@gtt.html
    - bat-adln-1:         [PASS][21] -> [DMESG-FAIL][22]
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-adln-1/igt@i915_selftest@live@gtt.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-adln-1/igt@i915_selftest@live@gtt.html
    - bat-mtlp-8:         [PASS][23] -> [DMESG-FAIL][24]
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-mtlp-8/igt@i915_selftest@live@gtt.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-mtlp-8/igt@i915_selftest@live@gtt.html
    - bat-dg2-8:          [PASS][25] -> [DMESG-FAIL][26]
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-8/igt@i915_selftest@live@gtt.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-8/igt@i915_selftest@live@gtt.html
    - fi-kbl-guc:         [PASS][27] -> [DMESG-FAIL][28]
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-kbl-guc/igt@i915_selftest@live@gtt.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-kbl-guc/igt@i915_selftest@live@gtt.html
    - bat-adls-6:         [PASS][29] -> [DMESG-FAIL][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-adls-6/igt@i915_selftest@live@gtt.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-adls-6/igt@i915_selftest@live@gtt.html
    - bat-adlm-1:         [PASS][31] -> [DMESG-FAIL][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-adlm-1/igt@i915_selftest@live@gtt.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-adlm-1/igt@i915_selftest@live@gtt.html
    - bat-jsl-1:          [PASS][33] -> [DMESG-FAIL][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-jsl-1/igt@i915_selftest@live@gtt.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-jsl-1/igt@i915_selftest@live@gtt.html
    - fi-tgl-1115g4:      [PASS][35] -> [DMESG-FAIL][36]
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-tgl-1115g4/igt@i915_selftest@live@gtt.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-tgl-1115g4/igt@i915_selftest@live@gtt.html
    - bat-arls-1:         [PASS][37] -> [DMESG-FAIL][38]
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-arls-1/igt@i915_selftest@live@gtt.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-arls-1/igt@i915_selftest@live@gtt.html
    - bat-adlp-6:         [PASS][39] -> [DMESG-FAIL][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-adlp-6/igt@i915_selftest@live@gtt.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-adlp-6/igt@i915_selftest@live@gtt.html
    - bat-mtlp-6:         [PASS][41] -> [DMESG-FAIL][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-mtlp-6/igt@i915_selftest@live@gtt.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-mtlp-6/igt@i915_selftest@live@gtt.html
    - bat-rpls-3:         [PASS][43] -> [DMESG-FAIL][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-rpls-3/igt@i915_selftest@live@gtt.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-rpls-3/igt@i915_selftest@live@gtt.html
    - fi-apl-guc:         [PASS][45] -> [DMESG-FAIL][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-apl-guc/igt@i915_selftest@live@gtt.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-apl-guc/igt@i915_selftest@live@gtt.html
    - bat-adlp-9:         [PASS][47] -> [DMESG-FAIL][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-adlp-9/igt@i915_selftest@live@gtt.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-adlp-9/igt@i915_selftest@live@gtt.html
    - fi-kbl-7567u:       [PASS][49] -> [DMESG-FAIL][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-kbl-7567u/igt@i915_selftest@live@gtt.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-kbl-7567u/igt@i915_selftest@live@gtt.html
    - fi-cfl-8700k:       [PASS][51] -> [DMESG-FAIL][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-cfl-8700k/igt@i915_selftest@live@gtt.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-cfl-8700k/igt@i915_selftest@live@gtt.html
    - bat-dg2-14:         [PASS][53] -> [DMESG-FAIL][54]
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-dg2-14/igt@i915_selftest@live@gtt.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-dg2-14/igt@i915_selftest@live@gtt.html
    - fi-bsw-nick:        [PASS][55] -> [DMESG-FAIL][56]
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-bsw-nick/igt@i915_selftest@live@gtt.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-bsw-nick/igt@i915_selftest@live@gtt.html
    - bat-rplp-1:         [PASS][57] -> [DMESG-FAIL][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-rplp-1/igt@i915_selftest@live@gtt.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-rplp-1/igt@i915_selftest@live@gtt.html
    - fi-rkl-11600:       [PASS][59] -> [DMESG-FAIL][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/fi-rkl-11600/igt@i915_selftest@live@gtt.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/fi-rkl-11600/igt@i915_selftest@live@gtt.html

  
#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * igt@i915_selftest@live@gtt:
    - {bat-mtlp-9}:       [PASS][61] -> [DMESG-FAIL][62]
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-mtlp-9/igt@i915_selftest@live@gtt.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-mtlp-9/igt@i915_selftest@live@gtt.html
    - {bat-arls-4}:       [PASS][63] -> [DMESG-FAIL][64]
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_14433/bat-arls-4/igt@i915_selftest@live@gtt.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/bat-arls-4/igt@i915_selftest@live@gtt.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).



Build changes
-------------

  * Linux: CI_DRM_14433 -> Patchwork_131095v2

  CI-20190529: 20190529
  CI_DRM_14433: f5246a1cf97dd1b9bf955148b0ca2cbf0b18d31e @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7765: 67615901aedcc79d8d1523c6484c67c11ba0e316 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_131095v2: f5246a1cf97dd1b9bf955148b0ca2cbf0b18d31e @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

6a30e4d3cdad drm/i915/gt: Report full vm address range

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_131095v2/index.html

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