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| author |   Stuart Summers <stuart.summers@intel.com> | 2021-07-21 15:30:33 -0700 |
|---|---|---|
| committer |   Matt Roper <matthew.d.roper@intel.com> | 2021-07-22 09:37:26 -0700 |
| commit | 50a9ea0843da815bf0e05fad4c9d80f89ab5349e (patch) | |
| tree | 957bce35ea6540316b022e9298ea1ad8aaff3b22 /drivers/gpu/drm/i915/gt/intel_lrc.c | |
| parent | drm/i915/selftests: Allow for larger engine counts (diff) | |
| download | linux-dev-50a9ea0843da815bf0e05fad4c9d80f89ab5349e.tar.xz linux-dev-50a9ea0843da815bf0e05fad4c9d80f89ab5349e.zip | |
drm/i915/xehp: Handle new device context ID format
Xe_HP changes the format of the context ID from past platforms.
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721223043.834562-9-matthew.d.roper@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 8ada1afe3d22..7f8fe6726504 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -1101,6 +1101,14 @@ setup_indirect_ctx_bb(const struct intel_context *ce, * bits 55-60: SW counter * bits 61-63: engine class * + * On Xe_HP, the upper dword of the descriptor has a new format: + * + * bits 32-37: virtual function number + * bit 38: mbz, reserved for use by hardware + * bits 39-54: SW context ID + * bits 55-57: reserved + * bits 58-63: SW counter + * * engine info, SW context ID and SW counter need to form a unique number * (Context ID) per lrc. */ |