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| author |   Yan Zhao <yan.y.zhao@intel.com> | 2020-12-23 11:45:00 +0800 |
|---|---|---|
| committer |   Zhenyu Wang <zhenyuw@linux.intel.com> | 2020-12-25 11:15:15 +0800 |
| commit | 3c4f2120d890b53855366c2e53ebe20806ed0cad (patch) | |
| tree | a816fdc0d3e087588851abdb94fcaa039c2e73e9 /drivers/gpu/drm/i915/gvt/reg.h | |
| parent | drm/i915/gvt: parse init context to update cmd accessible reg whitelist (diff) | |
| download | linux-dev-3c4f2120d890b53855366c2e53ebe20806ed0cad.tar.xz linux-dev-3c4f2120d890b53855366c2e53ebe20806ed0cad.zip | |
drm/i915/gvt: scan VM ctx pages
Logical Context is actually a big batch buffer consisting of multiple
LRI commands + saved registers. It comprises Ring Context (the first
0x50 dwords) and Engine Context. The registers defined in Engine Context
are command accessible, and safe to execute in VM Context.
This patch
1. stops copy Ring Context and only copys Engine Context from VM Context
2. audits VM Engine Contexts to disallow undesired LRIs
(if accessing registers out of Engine Context that hardware generates).
Cc: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Wang Zhi <zhi.a.wang@intel.com>
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20201223034500.16983-1-yan.y.zhao@intel.com
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/reg.h b/drivers/gpu/drm/i915/gvt/reg.h index b58860dee970..244cc7320b54 100644 --- a/drivers/gpu/drm/i915/gvt/reg.h +++ b/drivers/gpu/drm/i915/gvt/reg.h @@ -133,4 +133,6 @@ #define RING_GFX_MODE(base) _MMIO((base) + 0x29c) #define VF_GUARDBAND _MMIO(0x83a4) + +#define BCS_TILE_REGISTER_VAL_OFFSET (0x43*4) #endif |