diff options
| author | Michał Winiarski <michal.winiarski@intel.com> | 2017-10-25 22:00:11 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-26 21:35:21 +0100 |
| commit | b8e5eb960b28bc120b03f174dfa3ac1e32e1d10f (patch) | |
| tree | aa380db66b8a3be23f6ac315dde025619d60e2aa /drivers/gpu/drm/i915/intel_guc.c | |
| parent | 89922d0145755b0d22906925e9bac9dc78524fc3 (diff) | |
| download | op-kernel-dev-b8e5eb960b28bc120b03f174dfa3ac1e32e1d10f.zip op-kernel-dev-b8e5eb960b28bc120b03f174dfa3ac1e32e1d10f.tar.gz | |
drm/i915/guc: Allocate separate shared data object for GuC communication
We were using first page of kernel context render state for sharing data
with GuC. While it's justified by the fact that those pages are not used
(note, GuC still enforces this layout and refuses to work if we remove
the extra page in front), it's also confusing (why are we using this
particular page?). Let's allocate a separate object instead.
v2: Drop kernel_context from GuC suspend/resume action handlers (Michel)
Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171025200020.16636-4-michal.winiarski@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index 10037c0..f74d50f 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -268,7 +268,6 @@ int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset) int intel_guc_suspend(struct drm_i915_private *dev_priv) { struct intel_guc *guc = &dev_priv->guc; - struct i915_gem_context *ctx; u32 data[3]; if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS) @@ -276,14 +275,10 @@ int intel_guc_suspend(struct drm_i915_private *dev_priv) gen9_disable_guc_interrupts(dev_priv); - ctx = dev_priv->kernel_context; - data[0] = INTEL_GUC_ACTION_ENTER_S_STATE; /* any value greater than GUC_POWER_D0 */ data[1] = GUC_POWER_D1; - /* first page is shared data with GuC */ - data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + - LRC_GUCSHR_PN * PAGE_SIZE; + data[2] = guc_ggtt_offset(guc->shared_data); return intel_guc_send(guc, data, ARRAY_SIZE(data)); } @@ -295,7 +290,6 @@ int intel_guc_suspend(struct drm_i915_private *dev_priv) int intel_guc_resume(struct drm_i915_private *dev_priv) { struct intel_guc *guc = &dev_priv->guc; - struct i915_gem_context *ctx; u32 data[3]; if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS) @@ -304,13 +298,9 @@ int intel_guc_resume(struct drm_i915_private *dev_priv) if (i915_modparams.guc_log_level >= 0) gen9_enable_guc_interrupts(dev_priv); - ctx = dev_priv->kernel_context; - data[0] = INTEL_GUC_ACTION_EXIT_S_STATE; data[1] = GUC_POWER_D0; - /* first page is shared data with GuC */ - data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + - LRC_GUCSHR_PN * PAGE_SIZE; + data[2] = guc_ggtt_offset(guc->shared_data); return intel_guc_send(guc, data, ARRAY_SIZE(data)); } |
