[Intel-gfx] [PATCH 2/4] drm/i915/guc: Move host2guc_*() to intel_uc.c
Arkadiusz Hiler
arkadiusz.hiler at intel.com
Thu Nov 24 11:30:41 UTC 2016
host2guc_*() series of functions were introduced in the
i915_guc_submission.c and their scope was limited only to that file.
Those are not submission specific though.
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski at intel.com>
---
drivers/gpu/drm/i915/Makefile | 3 +-
drivers/gpu/drm/i915/i915_guc_submission.c | 138 ------------------------
drivers/gpu/drm/i915/intel_uc.c | 164 +++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_uc.h | 13 +++
4 files changed, 179 insertions(+), 139 deletions(-)
create mode 100644 drivers/gpu/drm/i915/intel_uc.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 580602d..3c30916 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -55,7 +55,8 @@ i915-y += i915_cmd_parser.o \
intel_uncore.o
# general-purpose microcontroller (GuC) support
-i915-y += intel_guc_loader.o \
+i915-y += intel_uc.o \
+ intel_guc_loader.o \
i915_guc_submission.o
# autogenerated null render state
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index e14220e..556b7f8 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -66,144 +66,6 @@
*/
/*
- * Read GuC command/status register (SOFT_SCRATCH_0)
- * Return true if it contains a response rather than a command
- */
-static inline bool host2guc_action_response(struct drm_i915_private *dev_priv,
- u32 *status)
-{
- u32 val = I915_READ(SOFT_SCRATCH(0));
- *status = val;
- return GUC2HOST_IS_RESPONSE(val);
-}
-
-static int host2guc_action(struct intel_guc *guc, u32 *data, u32 len)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- u32 status;
- int i;
- int ret;
-
- if (WARN_ON(len < 1 || len > 15))
- return -EINVAL;
-
- mutex_lock(&guc->action_lock);
- intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
-
- dev_priv->guc.action_count += 1;
- dev_priv->guc.action_cmd = data[0];
-
- for (i = 0; i < len; i++)
- I915_WRITE(SOFT_SCRATCH(i), data[i]);
-
- POSTING_READ(SOFT_SCRATCH(i - 1));
-
- I915_WRITE(HOST2GUC_INTERRUPT, HOST2GUC_TRIGGER);
-
- /*
- * Fast commands should complete in less than 10us, so sample quickly
- * up to that length of time, then switch to a slower sleep-wait loop.
- * No HOST2GUC command should ever take longer than 10ms.
- */
- ret = wait_for_us(host2guc_action_response(dev_priv, &status), 10);
- if (ret)
- ret = wait_for(host2guc_action_response(dev_priv, &status), 10);
- if (status != GUC2HOST_STATUS_SUCCESS) {
- /*
- * Either the GuC explicitly returned an error (which
- * we convert to -EIO here) or no response at all was
- * received within the timeout limit (-ETIMEDOUT)
- */
- if (ret != -ETIMEDOUT)
- ret = -EIO;
-
- DRM_WARN("Action 0x%X failed; ret=%d status=0x%08X response=0x%08X\n",
- data[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
-
- dev_priv->guc.action_fail += 1;
- dev_priv->guc.action_err = ret;
- }
- dev_priv->guc.action_status = status;
-
- intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
- mutex_unlock(&guc->action_lock);
-
- return ret;
-}
-
-/*
- * Tell the GuC to allocate or deallocate a specific doorbell
- */
-
-static int host2guc_allocate_doorbell(struct intel_guc *guc,
- struct i915_guc_client *client)
-{
- u32 data[2];
-
- data[0] = HOST2GUC_ACTION_ALLOCATE_DOORBELL;
- data[1] = client->ctx_index;
-
- return host2guc_action(guc, data, 2);
-}
-
-static int host2guc_release_doorbell(struct intel_guc *guc,
- struct i915_guc_client *client)
-{
- u32 data[2];
-
- data[0] = HOST2GUC_ACTION_DEALLOCATE_DOORBELL;
- data[1] = client->ctx_index;
-
- return host2guc_action(guc, data, 2);
-}
-
-static int host2guc_sample_forcewake(struct intel_guc *guc,
- struct i915_guc_client *client)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- u32 data[2];
-
- data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
- /* WaRsDisableCoarsePowerGating:skl,bxt */
- if (!intel_enable_rc6() || NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
- data[1] = 0;
- else
- /* bit 0 and 1 are for Render and Media domain separately */
- data[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
-
- return host2guc_action(guc, data, ARRAY_SIZE(data));
-}
-
-static int host2guc_logbuffer_flush_complete(struct intel_guc *guc)
-{
- u32 data[1];
-
- data[0] = HOST2GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE;
-
- return host2guc_action(guc, data, 1);
-}
-
-static int host2guc_force_logbuffer_flush(struct intel_guc *guc)
-{
- u32 data[2];
-
- data[0] = HOST2GUC_ACTION_FORCE_LOG_BUFFER_FLUSH;
- data[1] = 0;
-
- return host2guc_action(guc, data, 2);
-}
-
-static int host2guc_logging_control(struct intel_guc *guc, u32 control_val)
-{
- u32 data[2];
-
- data[0] = HOST2GUC_ACTION_UK_LOG_ENABLE_LOGGING;
- data[1] = control_val;
-
- return host2guc_action(guc, data, 2);
-}
-
-/*
* Initialise, update, or clear doorbell data shared with the GuC
*
* These functions modify shared data and so need access to the mapped
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
new file mode 100644
index 0000000..d833382
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+
+#include "i915_drv.h"
+#include "intel_uc.h"
+
+/*
+ * Read GuC command/status register (SOFT_SCRATCH_0)
+ * Return true if it contains a response rather than a command
+ */
+bool host2guc_action_response(struct drm_i915_private *dev_priv, u32 *status)
+{
+ u32 val = I915_READ(SOFT_SCRATCH(0));
+ *status = val;
+ return GUC2HOST_IS_RESPONSE(val);
+}
+
+int host2guc_action(struct intel_guc *guc, u32 *data, u32 len)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ u32 status;
+ int i;
+ int ret;
+
+ if (WARN_ON(len < 1 || len > 15))
+ return -EINVAL;
+
+ mutex_lock(&guc->action_lock);
+ intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
+
+ dev_priv->guc.action_count += 1;
+ dev_priv->guc.action_cmd = data[0];
+
+ for (i = 0; i < len; i++)
+ I915_WRITE(SOFT_SCRATCH(i), data[i]);
+
+ POSTING_READ(SOFT_SCRATCH(i - 1));
+
+ I915_WRITE(HOST2GUC_INTERRUPT, HOST2GUC_TRIGGER);
+
+ /*
+ * Fast commands should complete in less than 10us, so sample quickly
+ * up to that length of time, then switch to a slower sleep-wait loop.
+ * No HOST2GUC command should ever take longer than 10ms.
+ */
+ ret = wait_for_us(host2guc_action_response(dev_priv, &status), 10);
+ if (ret)
+ ret = wait_for(host2guc_action_response(dev_priv, &status), 10);
+ if (status != GUC2HOST_STATUS_SUCCESS) {
+ /*
+ * Either the GuC explicitly returned an error (which
+ * we convert to -EIO here) or no response at all was
+ * received within the timeout limit (-ETIMEDOUT)
+ */
+ if (ret != -ETIMEDOUT)
+ ret = -EIO;
+
+ DRM_WARN("Action 0x%X failed; ret=%d status=0x%08X response=0x%08X\n",
+ data[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
+
+ dev_priv->guc.action_fail += 1;
+ dev_priv->guc.action_err = ret;
+ }
+ dev_priv->guc.action_status = status;
+
+ intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
+ mutex_unlock(&guc->action_lock);
+
+ return ret;
+}
+
+/*
+ * Tell the GuC to allocate or deallocate a specific doorbell
+ */
+
+int host2guc_allocate_doorbell(struct intel_guc *guc,
+ struct i915_guc_client *client)
+{
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_ALLOCATE_DOORBELL;
+ data[1] = client->ctx_index;
+
+ return host2guc_action(guc, data, 2);
+}
+
+int host2guc_release_doorbell(struct intel_guc *guc,
+ struct i915_guc_client *client)
+{
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_DEALLOCATE_DOORBELL;
+ data[1] = client->ctx_index;
+
+ return host2guc_action(guc, data, 2);
+}
+
+int host2guc_sample_forcewake(struct intel_guc *guc,
+ struct i915_guc_client *client)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
+ /* WaRsDisableCoarsePowerGating:skl,bxt */
+ if (!intel_enable_rc6() || NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
+ data[1] = 0;
+ else
+ /* bit 0 and 1 are for Render and Media domain separately */
+ data[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
+
+ return host2guc_action(guc, data, ARRAY_SIZE(data));
+}
+
+int host2guc_logbuffer_flush_complete(struct intel_guc *guc)
+{
+ u32 data[1];
+
+ data[0] = HOST2GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE;
+
+ return host2guc_action(guc, data, 1);
+}
+
+int host2guc_force_logbuffer_flush(struct intel_guc *guc)
+{
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_FORCE_LOG_BUFFER_FLUSH;
+ data[1] = 0;
+
+ return host2guc_action(guc, data, 2);
+}
+
+int host2guc_logging_control(struct intel_guc *guc, u32 control_val)
+{
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_UK_LOG_ENABLE_LOGGING;
+ data[1] = control_val;
+
+ return host2guc_action(guc, data, 2);
+}
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 0d8a493..ec2d141 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -168,6 +168,19 @@ struct intel_guc {
struct mutex action_lock;
};
+/* intel_uc.c */
+bool host2guc_action_response(struct drm_i915_private *dev_priv, u32 *status);
+int host2guc_action(struct intel_guc *guc, u32 *data, u32 len);
+int host2guc_allocate_doorbell(struct intel_guc *guc,
+ struct i915_guc_client *client);
+int host2guc_release_doorbell(struct intel_guc *guc,
+ struct i915_guc_client *client);
+int host2guc_sample_forcewake(struct intel_guc *guc,
+ struct i915_guc_client *client);
+int host2guc_logbuffer_flush_complete(struct intel_guc *guc);
+int host2guc_force_logbuffer_flush(struct intel_guc *guc);
+int host2guc_logging_control(struct intel_guc *guc, u32 control_val);
+
/* intel_guc_loader.c */
extern void intel_guc_init(struct drm_device *dev);
extern int intel_guc_setup(struct drm_device *dev);
--
2.7.4
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