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| author | Leonid Moiseichuk <lmoiseichuk@nvidia.com> | 2015-06-02 09:36:43 -0400 |
|---|---|---|
| committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2015-06-06 10:23:53 -0400 |
| commit | d5fd0689c23683c161128cf9b51077d3b8c1c2bc (patch) | |
| tree | 60a7722a550c2bb41c17123e6f9c717ba119e786 /drivers/gpu/nvgpu/gk20a/channel_gk20a.c | |
| parent | 837ceffcab417865db8adbdf1a2038ebde8ec1a5 (diff) | |
gpu: nvgpu: minor cleanups in cyclestats snapshots
There are two minor cleanups of cyclestats snapshots code implemented:
1. In case of unacceptably small buffer passed as a cyclestats snapshot
it causes a kernel panic during list element removal:
NvRmGpuTest_Channel_Cyclestats_Snapshot_Gen for 1 clients,
each has 4 KB mappings and 1 perfmons
[ 304.533073] Unable to handle kernel NULL .... address 00000008
[ 304.541825] pgd = ffffffc04fc9f000
[ 304.545277] [00000008] *pgd=0000000000000000
[ 304.549554] Internal error: Oops: 96000045 [#1] PREEMPT SMPa
....
[ 304.584978] PC is at css_gr_free_client_data+0x28/0xe4
[ 304.590105] LR is at gr_gk20a_css_attach+0x6e0/0x700
2. Also fix with improved allocation of perfmon IDs implemented.
Bug 1573150
Change-Id: I58b753434141bf573463563fdd699c11ea914943
Signed-off-by: Leonid Moiseichuk <lmoiseichuk@nvidia.com>
Reviewed-on: http://git-master/r/751385
(cherry picked from commit e9314c29df3fb708a20fff58cfa64c2ead857b0f)
Reviewed-on: http://git-master/r/753275
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/channel_gk20a.c')
0 files changed, 0 insertions, 0 deletions