[PATCH 08/13] drm/i915/guc: Create intel_guc.c for defining GuC specific functionality
Sagar Arun Kamble
sagar.a.kamble at intel.com
Mon Sep 18 09:09:17 UTC 2017
Create intel_guc.c and added GuC specific functionality from
intel_uc.c. Moved below functions to intel_guc.c.
1. intel_guc_send_nop
2. gen8_guc_raise_irq
3. intel_guc_init_early
4. guc_send_regs
5. intel_guc_init_send_regs
6. intel_guc_send_mmio
7. intel_guc_sample_forcewake
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Michał Winiarski <michal.winiarski at intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/intel_guc.c | 146 +++++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_uc.c | 121 --------------------------------
drivers/gpu/drm/i915/intel_uc.h | 11 +--
4 files changed, 154 insertions(+), 125 deletions(-)
create mode 100644 drivers/gpu/drm/i915/intel_guc.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 1cb8059..e13fc19 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -59,6 +59,7 @@ i915-y += i915_cmd_parser.o \
# general-purpose microcontroller (GuC) support
i915-y += intel_uc.o \
+ intel_guc.o \
intel_guc_ct.o \
intel_guc_log.o \
intel_guc_loader.o \
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
new file mode 100644
index 0000000..d8b3559
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright © 2017 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"
+
+int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len)
+{
+ WARN(1, "Unexpected send: action=%#x\n", *action);
+ return -ENODEV;
+}
+
+static void gen8_guc_raise_irq(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+
+ I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER);
+}
+
+void intel_guc_init_early(struct intel_guc *guc)
+{
+ intel_guc_ct_init_early(&guc->ct);
+
+ mutex_init(&guc->send_mutex);
+ guc->send = intel_guc_send_nop;
+ guc->notify = gen8_guc_raise_irq;
+}
+
+static inline i915_reg_t guc_send_reg(struct intel_guc *guc, u32 i)
+{
+ GEM_BUG_ON(!guc->send_regs.base);
+ GEM_BUG_ON(!guc->send_regs.count);
+ GEM_BUG_ON(i >= guc->send_regs.count);
+
+ return _MMIO(guc->send_regs.base + 4 * i);
+}
+
+void intel_guc_init_send_regs(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ enum forcewake_domains fw_domains = 0;
+ unsigned int i;
+
+ guc->send_regs.base = i915_mmio_reg_offset(SOFT_SCRATCH(0));
+ guc->send_regs.count = SOFT_SCRATCH_COUNT - 1;
+
+ for (i = 0; i < guc->send_regs.count; i++) {
+ fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
+ guc_send_reg(guc, i),
+ FW_REG_READ | FW_REG_WRITE);
+ }
+ guc->send_regs.fw_domains = fw_domains;
+}
+
+/*
+ * This function implements the MMIO based host to GuC interface.
+ */
+int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ u32 status;
+ int i;
+ int ret;
+
+ GEM_BUG_ON(!len);
+ GEM_BUG_ON(len > guc->send_regs.count);
+
+ /* If CT is available, we expect to use MMIO only during init/fini */
+ GEM_BUG_ON(HAS_GUC_CT(dev_priv) &&
+ *action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
+ *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
+
+ mutex_lock(&guc->send_mutex);
+ intel_uncore_forcewake_get(dev_priv, guc->send_regs.fw_domains);
+
+ for (i = 0; i < len; i++)
+ I915_WRITE(guc_send_reg(guc, i), action[i]);
+
+ POSTING_READ(guc_send_reg(guc, i - 1));
+
+ intel_guc_notify(guc);
+
+ /*
+ * No GuC command should ever take longer than 10ms.
+ * Fast commands should still complete in 10us.
+ */
+ ret = __intel_wait_for_register_fw(dev_priv,
+ guc_send_reg(guc, 0),
+ INTEL_GUC_RECV_MASK,
+ INTEL_GUC_RECV_MASK,
+ 10, 10, &status);
+ if (status != INTEL_GUC_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("INTEL_GUC_SEND: Action 0x%X failed;"
+ " ret=%d status=0x%08X response=0x%08X\n",
+ action[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
+ }
+
+ intel_uncore_forcewake_put(dev_priv, guc->send_regs.fw_domains);
+ mutex_unlock(&guc->send_mutex);
+
+ return ret;
+}
+
+int intel_guc_sample_forcewake(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ u32 action[2];
+
+ action[0] = INTEL_GUC_ACTION_SAMPLE_FORCEWAKE;
+ /* WaRsDisableCoarsePowerGating:skl,bxt */
+ if (!intel_enable_rc6() || NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
+ action[1] = 0;
+ else
+ /* bit 0 and 1 are for Render and Media domain separately */
+ action[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
+
+ return intel_guc_send(guc, action, ARRAY_SIZE(action));
+}
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index af4bc3b..f7c5112 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -94,22 +94,6 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
i915.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
}
-static void gen8_guc_raise_irq(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
-
- I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER);
-}
-
-static void intel_guc_init_early(struct intel_guc *guc)
-{
- intel_guc_ct_init_early(&guc->ct);
-
- mutex_init(&guc->send_mutex);
- guc->send = intel_guc_send_nop;
- guc->notify = gen8_guc_raise_irq;
-}
-
void intel_uc_init_early(struct drm_i915_private *dev_priv)
{
intel_guc_init_early(&dev_priv->guc);
@@ -265,32 +249,6 @@ void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
__intel_uc_fw_fini(&dev_priv->huc.fw);
}
-static inline i915_reg_t guc_send_reg(struct intel_guc *guc, u32 i)
-{
- GEM_BUG_ON(!guc->send_regs.base);
- GEM_BUG_ON(!guc->send_regs.count);
- GEM_BUG_ON(i >= guc->send_regs.count);
-
- return _MMIO(guc->send_regs.base + 4 * i);
-}
-
-void intel_guc_init_send_regs(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- enum forcewake_domains fw_domains = 0;
- unsigned int i;
-
- guc->send_regs.base = i915_mmio_reg_offset(SOFT_SCRATCH(0));
- guc->send_regs.count = SOFT_SCRATCH_COUNT - 1;
-
- for (i = 0; i < guc->send_regs.count; i++) {
- fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
- guc_send_reg(guc, i),
- FW_REG_READ | FW_REG_WRITE);
- }
- guc->send_regs.fw_domains = fw_domains;
-}
-
static void guc_capture_load_err_log(struct intel_guc *guc)
{
if (!guc->log.vma || i915.guc_log_level < 0)
@@ -461,82 +419,3 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
i915_ggtt_disable_guc(dev_priv);
}
-
-int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len)
-{
- WARN(1, "Unexpected send: action=%#x\n", *action);
- return -ENODEV;
-}
-
-/*
- * This function implements the MMIO based host to GuC interface.
- */
-int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- u32 status;
- int i;
- int ret;
-
- GEM_BUG_ON(!len);
- GEM_BUG_ON(len > guc->send_regs.count);
-
- /* If CT is available, we expect to use MMIO only during init/fini */
- GEM_BUG_ON(HAS_GUC_CT(dev_priv) &&
- *action != INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER &&
- *action != INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER);
-
- mutex_lock(&guc->send_mutex);
- intel_uncore_forcewake_get(dev_priv, guc->send_regs.fw_domains);
-
- for (i = 0; i < len; i++)
- I915_WRITE(guc_send_reg(guc, i), action[i]);
-
- POSTING_READ(guc_send_reg(guc, i - 1));
-
- intel_guc_notify(guc);
-
- /*
- * No GuC command should ever take longer than 10ms.
- * Fast commands should still complete in 10us.
- */
- ret = __intel_wait_for_register_fw(dev_priv,
- guc_send_reg(guc, 0),
- INTEL_GUC_RECV_MASK,
- INTEL_GUC_RECV_MASK,
- 10, 10, &status);
- if (status != INTEL_GUC_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("INTEL_GUC_SEND: Action 0x%X failed;"
- " ret=%d status=0x%08X response=0x%08X\n",
- action[0], ret, status, I915_READ(SOFT_SCRATCH(15)));
- }
-
- intel_uncore_forcewake_put(dev_priv, guc->send_regs.fw_domains);
- mutex_unlock(&guc->send_mutex);
-
- return ret;
-}
-
-int intel_guc_sample_forcewake(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- u32 action[2];
-
- action[0] = INTEL_GUC_ACTION_SAMPLE_FORCEWAKE;
- /* WaRsDisableCoarsePowerGating:skl,bxt */
- if (!intel_enable_rc6() || NEEDS_WaRsDisableCoarsePowerGating(dev_priv))
- action[1] = 0;
- else
- /* bit 0 and 1 are for Render and Media domain separately */
- action[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
-
- return intel_guc_send(guc, action, ARRAY_SIZE(action));
-}
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 77e6d83..fea206b 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -208,10 +208,6 @@ struct intel_huc {
void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
int intel_uc_init_hw(struct drm_i915_private *dev_priv);
void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
-int intel_guc_sample_forcewake(struct intel_guc *guc);
-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_init_send_regs(struct intel_guc *guc);
static inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
{
@@ -223,6 +219,13 @@ static inline void intel_guc_notify(struct intel_guc *guc)
guc->notify(guc);
}
+/* intel_guc.c */
+int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
+void intel_guc_init_early(struct intel_guc *guc);
+void intel_guc_init_send_regs(struct intel_guc *guc);
+int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
+int intel_guc_sample_forcewake(struct intel_guc *guc);
+
/* intel_guc_loader.c */
int intel_guc_select_fw(struct intel_guc *guc);
int intel_guc_init_hw(struct intel_guc *guc);
--
1.9.1
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