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drm/i915/uc: Consider enable_guc modparam during fw selection

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We can use value of enable_guc modparam during firmware path selection
and start using firmware status to see if GuC/HuC is being used.
This is first step to make enable_guc modparam read-only.

v2: rebased, don't care about <0 (Chris)
v3: oops

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190731223321.36436-3-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2019-07-31 22:33:19 +00:00 committed by Chris Wilson
parent 57a68c3507
commit db81bc6eb9
4 changed files with 33 additions and 6 deletions
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5
drivers/gpu/drm/i915/gt/uc/intel_guc.h
View File

@ -172,6 +172,11 @@ int intel_guc_suspend(struct intel_guc *guc);
int intel_guc_resume(struct intel_guc *guc);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
static inline bool intel_guc_is_supported(struct intel_guc *guc)
{
return intel_uc_fw_supported(&guc->fw);
}
static inline bool intel_guc_is_running(struct intel_guc *guc)
{
return intel_uc_fw_is_running(&guc->fw);

5
drivers/gpu/drm/i915/gt/uc/intel_huc.h
View File

@ -55,6 +55,11 @@ static inline int intel_huc_sanitize(struct intel_huc *huc)
return 0;
}
static inline bool intel_huc_is_supported(struct intel_huc *huc)
{
return intel_uc_fw_supported(&huc->fw);
}
static inline bool intel_huc_is_authenticated(struct intel_huc *huc)
{
return intel_uc_fw_is_running(&huc->fw);

6
drivers/gpu/drm/i915/gt/uc/intel_uc.h
View File

@ -51,8 +51,7 @@ int intel_uc_runtime_resume(struct intel_uc *uc);
static inline bool intel_uc_supports_guc(struct intel_uc *uc)
{
GEM_BUG_ON(i915_modparams.enable_guc < 0);
return i915_modparams.enable_guc > 0;
return intel_guc_is_supported(&uc->guc);
}
static inline bool intel_uc_supports_guc_submission(struct intel_uc *uc)
@ -63,8 +62,7 @@ static inline bool intel_uc_supports_guc_submission(struct intel_uc *uc)
static inline bool intel_uc_supports_huc(struct intel_uc *uc)
{
GEM_BUG_ON(i915_modparams.enable_guc < 0);
return i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC;
return intel_huc_is_supported(&uc->huc);
}
#endif

23
drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
View File

@ -132,6 +132,25 @@ __uc_fw_auto_select(struct intel_uc_fw *uc_fw, enum intel_platform p, u8 rev)
uc_fw->path = NULL;
}
}
/* We don't want to enable GuC/HuC on pre-Gen11 by default */
if (i915_modparams.enable_guc == -1 && p < INTEL_ICELAKE)
uc_fw->path = NULL;
}
static const char *__override_guc_firmware_path(void)
{
if (i915_modparams.enable_guc & (ENABLE_GUC_SUBMISSION |
ENABLE_GUC_LOAD_HUC))
return i915_modparams.guc_firmware_path;
return "";
}
static const char *__override_huc_firmware_path(void)
{
if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC)
return i915_modparams.huc_firmware_path;
return "";
}
static bool
@ -139,10 +158,10 @@ __uc_fw_override(struct intel_uc_fw *uc_fw)
{
switch (uc_fw->type) {
case INTEL_UC_FW_TYPE_GUC:
uc_fw->path = i915_modparams.guc_firmware_path;
uc_fw->path = __override_guc_firmware_path();
break;
case INTEL_UC_FW_TYPE_HUC:
uc_fw->path = i915_modparams.huc_firmware_path;
uc_fw->path = __override_huc_firmware_path();
break;
}