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drm/i915/pxp: define PXP device flag and kconfig

Browse source 
Ahead of the PXP implementation, define the relevant define flag and
kconfig option.

v2: flip kconfig default to N. Some machines have IFWIs that do not
support PXP, so we need it to be an opt-in until we add support to query
the caps from the mei device.

v10: change comments from "Gen12+" to "Gen12 and newer"

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924191452.1539378-4-alan.previn.teres.alexis@intel.com
This commit is contained in:
Daniele Ceraolo Spurio 2021-09-24 12:14:38 -07:00 committed by Rodrigo Vivi
parent c2004ce99e
commit e6aa71361b
3 changed files with 15 additions and 0 deletions
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11
drivers/gpu/drm/i915/Kconfig
View file

@ -131,6 +131,17 @@ config DRM_I915_GVT_KVMGT
Choose this option if you want to enable KVMGT support for
Intel GVT-g.
config DRM_I915_PXP
bool "Enable Intel PXP support for Intel Gen12 and newer platform"
depends on DRM_I915
depends on INTEL_MEI && INTEL_MEI_PXP
default n
help
PXP (Protected Xe Path) is an i915 component, available on GEN12 and
newer GPUs, that helps to establish the hardware protected session and
manage the status of the alive software session, as well as its life
cycle.
menu "drm/i915 Debugging"
depends on DRM_I915
depends on EXPERT

3
drivers/gpu/drm/i915/i915_drv.h
View file

@ -1700,6 +1700,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs)
#define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \
INTEL_INFO(dev_priv)->has_pxp) && \
VDBOX_MASK(&dev_priv->gt))
#define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)

1
drivers/gpu/drm/i915/intel_device_info.h
View file

@ -133,6 +133,7 @@ enum intel_ppgtt_type {
func(has_logical_ring_elsq); \
func(has_mslices); \
func(has_pooled_eu); \
func(has_pxp); \
func(has_rc6); \
func(has_rc6p); \
func(has_rps); \