On Thu, 14 Sep 2017 11:55:04 +0200, Sagar Arun Kamble
<sagar.a.kamble@xxxxxxxxx> wrote:
From: "Kamble, Sagar A" <sagar.a.kamble@xxxxxxxxx>
This patch is moving guc_enable_communication and
guc_disable_communication to intel_guc.c and making it available for
use through intel_guc.h.
Intent is to reuse this function for calling from intel_uc_init_hw
and also as part of intel_uc_fini_hw where it will be coupled with
other teardown related to GuC in the upcoming patch.
Hmm, but both intel_uc_init_hw() and intel_uc_fini_hw() shall stay in
intel_uc.c and the best place for guc_[enable|disable]_communication()
functions is also in intel_uc.c as they provide generic switch between
MMIO/CT send mechanism, so I'm not so sure that we need this patch.
Michal
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_guc.c | 21 +++++++++++++++++++++
drivers/gpu/drm/i915/intel_guc.h | 2 ++
drivers/gpu/drm/i915/intel_uc.c | 29 ++++-------------------------
3 files changed, 27 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_guc.c
b/drivers/gpu/drm/i915/intel_guc.c
index 5559e00..75bb830 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -181,3 +181,24 @@ void intel_guc_auth_huc(struct intel_guc *guc,
struct intel_huc *huc)
out:
i915_vma_unpin(vma);
}
+
+int intel_guc_enable_communication(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+
+ if (HAS_GUC_CT(dev_priv))
+ return intel_guc_enable_ct(guc);
+
+ guc->send = intel_guc_send_mmio;
+ return 0;
+}
+
+void intel_guc_disable_communication(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+
+ if (HAS_GUC_CT(dev_priv))
+ intel_guc_disable_ct(guc);
+
+ guc->send = intel_guc_send_nop;
+}
diff --git a/drivers/gpu/drm/i915/intel_guc.h
b/drivers/gpu/drm/i915/intel_guc.h
index 9a282aa..8ed0e81 100644
--- a/drivers/gpu/drm/i915/intel_guc.h
+++ b/drivers/gpu/drm/i915/intel_guc.h
@@ -149,6 +149,8 @@ static inline u32 guc_ggtt_offset(struct i915_vma
*vma)
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32
len);
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32
len);
void intel_guc_auth_huc(struct intel_guc *guc, struct intel_huc *huc);
+int intel_guc_enable_communication(struct intel_guc *guc);
+void intel_guc_disable_communication(struct intel_guc *guc);
/* intel_guc_loader.c */
int intel_guc_select_fw(struct intel_guc *guc);
diff --git a/drivers/gpu/drm/i915/intel_uc.c
b/drivers/gpu/drm/i915/intel_uc.c
index a3fc4c8..30c004c 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -265,27 +265,6 @@ static void guc_free_load_err_log(struct intel_guc
*guc)
i915_gem_object_put(guc->load_err_log);
}
-static int guc_enable_communication(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
-
- if (HAS_GUC_CT(dev_priv))
- return intel_guc_enable_ct(guc);
-
- guc->send = intel_guc_send_mmio;
- return 0;
-}
-
-static void guc_disable_communication(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
-
- if (HAS_GUC_CT(dev_priv))
- intel_guc_disable_ct(guc);
-
- guc->send = intel_guc_send_nop;
-}
-
int intel_uc_init_hw(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
@@ -295,7 +274,7 @@ int intel_uc_init_hw(struct drm_i915_private
*dev_priv)
if (!i915.enable_guc_loading)
return 0;
- guc_disable_communication(guc);
+ intel_guc_disable_communication(guc);
gen9_reset_guc_interrupts(dev_priv);
/* We need to notify the guc whenever we change the GGTT */
@@ -347,7 +326,7 @@ int intel_uc_init_hw(struct drm_i915_private
*dev_priv)
intel_guc_init_send_regs(guc);
- ret = guc_enable_communication(guc);
+ ret = intel_guc_enable_communication(guc);
if (ret)
goto err_log_capture;
@@ -373,7 +352,7 @@ int intel_uc_init_hw(struct drm_i915_private
*dev_priv)
* marks the GPU as wedged until reset).
*/
err_interrupts:
- guc_disable_communication(guc);
+ intel_guc_disable_communication(guc);
gen9_disable_guc_interrupts(dev_priv);
err_log_capture:
guc_capture_load_err_log(guc);
@@ -410,7 +389,7 @@ void intel_uc_fini_hw(struct drm_i915_private
*dev_priv)
if (i915.enable_guc_submission)
i915_guc_submission_disable(dev_priv);
- guc_disable_communication(&dev_priv->guc);
+ intel_guc_disable_communication(&dev_priv->guc);
if (i915.enable_guc_submission) {
gen9_disable_guc_interrupts(dev_priv);
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