diff options
| author |   Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2023-05-31 16:54:12 -0700 |
|---|---|---|
| committer | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2023-06-05 09:53:51 -0700 |
| commit | 98d2722a85c4ad5f2baf2272cbb0fab67f797b69 (patch) | |
| tree | cc4c27f59a6c5789cb58eb560d105943fc3c205a /drivers/gpu/drm/i915/i915_reg.h | |
| parent | drm/i915/huc: Load GSC-enabled HuC via DMA xfer if the fuse says so (diff) | |
| download | wireguard-linux-98d2722a85c4ad5f2baf2272cbb0fab67f797b69.tar.xz wireguard-linux-98d2722a85c4ad5f2baf2272cbb0fab67f797b69.zip | |
drm/i915/huc: differentiate the 2 steps of the MTL HuC auth flow
Before we add the second step of the MTL HuC auth (via GSC), we need to
have the ability to differentiate between them. To do so, the huc
authentication check is duplicated for GuC and GSC auth, with
GSC-enabled binaries being considered fully authenticated only after
the GSC auth step.
To report the difference between the 2 auth steps, a new case is added
to the HuC getparam. This way, the clear media driver can start
submitting before full auth, as partial auth is enough for those
workloads.
v2: fix authentication status check for DG2
v3: add a better comment at the top of the HuC file to explain the
different approaches to load and auth (John)
v4: update call to intel_huc_is_authenticated in the pxp code to check
for GSC authentication
v5: drop references to meu and esclamation mark in huc_auth print (John)
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> #v2
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531235415.1467475-5-daniele.ceraolospurio@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c4197e31962e..e0fc0f588c45 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -941,6 +941,9 @@ #define HECI_H_GS1(base) _MMIO((base) + 0xc4c) #define HECI_H_GS1_ER_PREP REG_BIT(0) +#define HECI_FWSTS5(base) _MMIO((base) + 0xc68) +#define HECI_FWSTS5_HUC_AUTH_DONE (1 << 19) + #define HSW_GTT_CACHE_EN _MMIO(0x4024) #define GTT_CACHE_EN_ALL 0xF0007FFF #define GEN7_WR_WATERMARK _MMIO(0x4028) |