leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge tag 'gvt-fixes-2021-04-20' of https://github.com/intel/gvt-linux into drm-intel-fixes

Browse Source 
gvt-fixes-2021-04-20

- Fix cmd parser regression on BDW (Zhenyu)

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210420023312.GL1551@zhen-hp.sh.intel.com
This commit is contained in:
Rodrigo Vivi 2021-04-20 09:41:32 -04:00
commit 2d292995bb
1 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/i915/gvt/cmd_parser.c
View File

@ -916,19 +916,26 @@ static int cmd_reg_handler(struct parser_exec_state *s,
if (!strncmp(cmd, "srm", 3) ||
!strncmp(cmd, "lrm", 3)) {
if (offset != i915_mmio_reg_offset(GEN8_L3SQCREG4) &&
offset != 0x21f0) {
if (offset == i915_mmio_reg_offset(GEN8_L3SQCREG4) ||
offset == 0x21f0 ||
(IS_BROADWELL(gvt->gt->i915) &&
offset == i915_mmio_reg_offset(INSTPM)))
return 0;
else {
gvt_vgpu_err("%s access to register (%x)\n",
cmd, offset);
return -EPERM;
} else
return 0;
}
}
if (!strncmp(cmd, "lrr-src", 7) ||
!strncmp(cmd, "lrr-dst", 7)) {
gvt_vgpu_err("not allowed cmd %s\n", cmd);
return -EPERM;
if (IS_BROADWELL(gvt->gt->i915) && offset == 0x215c)
return 0;
else {
gvt_vgpu_err("not allowed cmd %s reg (%x)\n", cmd, offset);
return -EPERM;
}
}
if (!strncmp(cmd, "pipe_ctrl", 9)) {