On Thu, May 30, 2019 at 4:40 PM Matt Roper <matthew.d.roper@xxxxxxxxx> wrote:
>
> EHL defines two new MOCS table entries but is otherwise compatible with
> the ICL MOCS table.
>
> These table entries (16 and 17) should still be considered unused for
> ICL and as such their behavior remains undefined for that platform.
>
> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/intel_mocs.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
> index 79df66022d3a..1f9db50b1869 100644
> --- a/drivers/gpu/drm/i915/gt/intel_mocs.c
> +++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
> @@ -200,6 +200,14 @@ static const struct drm_i915_mocs_entry broxton_mocs_table[] = {
> MOCS_ENTRY(15, \
> LE_3_WB | LE_TC_1_LLC | LE_LRUM(2) | LE_AOM(1), \
> L3_3_WB), \
> + /* Bypass LLC - Uncached (EHL+) */ \
> + MOCS_ENTRY(16, \
> + LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
> + L3_1_UC), \
> + /* Bypass LLC - L3 (Read-Only) (EHL+) */ \
> + MOCS_ENTRY(17, \
> + LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
> + L3_3_WB), \
> /* Self-Snoop - L3 + LLC */ \
> MOCS_ENTRY(18, \
> LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SSE(3), \
> --
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Lucas De Marchi
> 2.14.5
>
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--
Lucas De Marchi
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