[Intel-gfx] [PATCH 04/10] drm/i915/uc: Move intel_uc_fw_fetch() to intel_uc.c

Arkadiusz Hiler arkadiusz.hiler at intel.com
Thu Mar 2 16:03:48 UTC 2017


The file fits better.

Additionally rename it to intel_uc_prepare_fw(), as the function does
more than simple fetch.

v2: remove second declaration, reorder (M. Wajdeczko)

Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
---
 drivers/gpu/drm/i915/intel_guc_loader.c | 137 +-------------------------------
 drivers/gpu/drm/i915/intel_huc.c        |   2 +-
 drivers/gpu/drm/i915/intel_uc.c         | 135 +++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_uc.h         |   4 +-
 4 files changed, 139 insertions(+), 139 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 9f09e26..20e3337 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -26,7 +26,6 @@
  *    Dave Gordon <david.s.gordon at intel.com>
  *    Alex Dai <yu.dai at intel.com>
  */
-#include <linux/firmware.h>
 #include "i915_drv.h"
 #include "intel_uc.h"
 
@@ -587,140 +586,6 @@ int intel_guc_init_hw(struct drm_i915_private *dev_priv)
 	return ret;
 }
 
-void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
-			 struct intel_uc_fw *uc_fw)
-{
-	struct pci_dev *pdev = dev_priv->drm.pdev;
-	struct drm_i915_gem_object *obj;
-	const struct firmware *fw = NULL;
-	struct uc_css_header *css;
-	size_t size;
-	int err;
-
-	DRM_DEBUG_DRIVER("before requesting firmware: uC fw fetch status %s\n",
-		intel_uc_fw_status_repr(uc_fw->fetch_status));
-
-	err = request_firmware(&fw, uc_fw->path, &pdev->dev);
-	if (err)
-		goto fail;
-	if (!fw)
-		goto fail;
-
-	DRM_DEBUG_DRIVER("fetch uC fw from %s succeeded, fw %p\n",
-		uc_fw->path, fw);
-
-	/* Check the size of the blob before examining buffer contents */
-	if (fw->size < sizeof(struct uc_css_header)) {
-		DRM_NOTE("Firmware header is missing\n");
-		goto fail;
-	}
-
-	css = (struct uc_css_header *)fw->data;
-
-	/* Firmware bits always start from header */
-	uc_fw->header_offset = 0;
-	uc_fw->header_size = (css->header_size_dw - css->modulus_size_dw -
-		css->key_size_dw - css->exponent_size_dw) * sizeof(u32);
-
-	if (uc_fw->header_size != sizeof(struct uc_css_header)) {
-		DRM_NOTE("CSS header definition mismatch\n");
-		goto fail;
-	}
-
-	/* then, uCode */
-	uc_fw->ucode_offset = uc_fw->header_offset + uc_fw->header_size;
-	uc_fw->ucode_size = (css->size_dw - css->header_size_dw) * sizeof(u32);
-
-	/* now RSA */
-	if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) {
-		DRM_NOTE("RSA key size is bad\n");
-		goto fail;
-	}
-	uc_fw->rsa_offset = uc_fw->ucode_offset + uc_fw->ucode_size;
-	uc_fw->rsa_size = css->key_size_dw * sizeof(u32);
-
-	/* At least, it should have header, uCode and RSA. Size of all three. */
-	size = uc_fw->header_size + uc_fw->ucode_size + uc_fw->rsa_size;
-	if (fw->size < size) {
-		DRM_NOTE("Missing firmware components\n");
-		goto fail;
-	}
-
-	/*
-	 * The GuC firmware image has the version number embedded at a well-known
-	 * offset within the firmware blob; note that major / minor version are
-	 * TWO bytes each (i.e. u16), although all pointers and offsets are defined
-	 * in terms of bytes (u8).
-	 */
-	switch (uc_fw->fw) {
-	case INTEL_UC_FW_TYPE_GUC:
-		/* Header and uCode will be loaded to WOPCM. Size of the two. */
-		size = uc_fw->header_size + uc_fw->ucode_size;
-
-		/* Top 32k of WOPCM is reserved (8K stack + 24k RC6 context). */
-		if (size > intel_guc_wopcm_size(dev_priv)) {
-			DRM_ERROR("Firmware is too large to fit in WOPCM\n");
-			goto fail;
-		}
-		uc_fw->major_ver_found = css->guc.sw_version >> 16;
-		uc_fw->minor_ver_found = css->guc.sw_version & 0xFFFF;
-		break;
-
-	case INTEL_UC_FW_TYPE_HUC:
-		uc_fw->major_ver_found = css->huc.sw_version >> 16;
-		uc_fw->minor_ver_found = css->huc.sw_version & 0xFFFF;
-		break;
-
-	default:
-		DRM_ERROR("Unknown firmware type %d\n", uc_fw->fw);
-		err = -ENOEXEC;
-		goto fail;
-	}
-
-	if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
-	    uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
-		DRM_NOTE("uC firmware version %d.%d, required %d.%d\n",
-			uc_fw->major_ver_found, uc_fw->minor_ver_found,
-			uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
-		err = -ENOEXEC;
-		goto fail;
-	}
-
-	DRM_DEBUG_DRIVER("firmware version %d.%d OK (minimum %d.%d)\n",
-			uc_fw->major_ver_found, uc_fw->minor_ver_found,
-			uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
-
-	mutex_lock(&dev_priv->drm.struct_mutex);
-	obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
-	mutex_unlock(&dev_priv->drm.struct_mutex);
-	if (IS_ERR_OR_NULL(obj)) {
-		err = obj ? PTR_ERR(obj) : -ENOMEM;
-		goto fail;
-	}
-
-	uc_fw->obj = obj;
-	uc_fw->size = fw->size;
-
-	DRM_DEBUG_DRIVER("uC fw fetch status SUCCESS, obj %p\n",
-			uc_fw->obj);
-
-	release_firmware(fw);
-	uc_fw->fetch_status = INTEL_UC_FIRMWARE_SUCCESS;
-	return;
-
-fail:
-	DRM_WARN("Failed to fetch valid uC firmware from %s (error %d)\n",
-		 uc_fw->path, err);
-	DRM_DEBUG_DRIVER("uC fw fetch status FAIL; err %d, fw %p, obj %p\n",
-		err, fw, uc_fw->obj);
-
-	obj = fetch_and_zero(&uc_fw->obj);
-	if (obj)
-		i915_gem_object_put(obj);
-
-	release_firmware(fw);		/* OK even if fw is NULL */
-	uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
-}
 
 /**
  * intel_guc_init() - define parameters and fetch firmware
@@ -779,7 +644,7 @@ void intel_guc_init(struct drm_i915_private *dev_priv)
 
 	guc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
 	DRM_DEBUG_DRIVER("GuC firmware pending, path %s\n", fw_path);
-	intel_uc_fw_fetch(dev_priv, guc_fw);
+	intel_uc_prepare_fw(dev_priv, guc_fw);
 	/* status must now be FAIL or SUCCESS */
 }
 
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c
index babe0eb..566fa7e 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -187,7 +187,7 @@ void intel_huc_init(struct drm_i915_private *dev_priv)
 
 	WARN(huc_fw->path == NULL, "HuC present but no fw path\n");
 
-	intel_uc_fw_fetch(dev_priv, huc_fw);
+	intel_uc_prepare_fw(dev_priv, huc_fw);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index c46bc85..7155aa7 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -24,6 +24,7 @@
 
 #include "i915_drv.h"
 #include "intel_uc.h"
+#include <linux/firmware.h>
 
 void intel_uc_init_early(struct drm_i915_private *dev_priv)
 {
@@ -114,3 +115,137 @@ int intel_guc_sample_forcewake(struct intel_guc *guc)
 	return intel_guc_send(guc, action, ARRAY_SIZE(action));
 }
 
+void intel_uc_prepare_fw(struct drm_i915_private *dev_priv,
+			 struct intel_uc_fw *uc_fw)
+{
+	struct pci_dev *pdev = dev_priv->drm.pdev;
+	struct drm_i915_gem_object *obj;
+	const struct firmware *fw = NULL;
+	struct uc_css_header *css;
+	size_t size;
+	int err;
+
+	DRM_DEBUG_DRIVER("before requesting firmware: uC fw fetch status %s\n",
+		intel_uc_fw_status_repr(uc_fw->fetch_status));
+
+	err = request_firmware(&fw, uc_fw->path, &pdev->dev);
+	if (err)
+		goto fail;
+	if (!fw)
+		goto fail;
+
+	DRM_DEBUG_DRIVER("fetch uC fw from %s succeeded, fw %p\n",
+		uc_fw->path, fw);
+
+	/* Check the size of the blob before examining buffer contents */
+	if (fw->size < sizeof(struct uc_css_header)) {
+		DRM_NOTE("Firmware header is missing\n");
+		goto fail;
+	}
+
+	css = (struct uc_css_header *)fw->data;
+
+	/* Firmware bits always start from header */
+	uc_fw->header_offset = 0;
+	uc_fw->header_size = (css->header_size_dw - css->modulus_size_dw -
+		css->key_size_dw - css->exponent_size_dw) * sizeof(u32);
+
+	if (uc_fw->header_size != sizeof(struct uc_css_header)) {
+		DRM_NOTE("CSS header definition mismatch\n");
+		goto fail;
+	}
+
+	/* then, uCode */
+	uc_fw->ucode_offset = uc_fw->header_offset + uc_fw->header_size;
+	uc_fw->ucode_size = (css->size_dw - css->header_size_dw) * sizeof(u32);
+
+	/* now RSA */
+	if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) {
+		DRM_NOTE("RSA key size is bad\n");
+		goto fail;
+	}
+	uc_fw->rsa_offset = uc_fw->ucode_offset + uc_fw->ucode_size;
+	uc_fw->rsa_size = css->key_size_dw * sizeof(u32);
+
+	/* At least, it should have header, uCode and RSA. Size of all three. */
+	size = uc_fw->header_size + uc_fw->ucode_size + uc_fw->rsa_size;
+	if (fw->size < size) {
+		DRM_NOTE("Missing firmware components\n");
+		goto fail;
+	}
+
+	/*
+	 * The GuC firmware image has the version number embedded at a
+	 * well-known offset within the firmware blob; note that major / minor
+	 * version are TWO bytes each (i.e. u16), although all pointers and
+	 * offsets are defined in terms of bytes (u8).
+	 */
+	switch (uc_fw->fw) {
+	case INTEL_UC_FW_TYPE_GUC:
+		/* Header and uCode will be loaded to WOPCM. Size of the two. */
+		size = uc_fw->header_size + uc_fw->ucode_size;
+
+		/* Top 32k of WOPCM is reserved (8K stack + 24k RC6 context). */
+		if (size > intel_guc_wopcm_size(dev_priv)) {
+			DRM_ERROR("Firmware is too large to fit in WOPCM\n");
+			goto fail;
+		}
+		uc_fw->major_ver_found = css->guc.sw_version >> 16;
+		uc_fw->minor_ver_found = css->guc.sw_version & 0xFFFF;
+		break;
+
+	case INTEL_UC_FW_TYPE_HUC:
+		uc_fw->major_ver_found = css->huc.sw_version >> 16;
+		uc_fw->minor_ver_found = css->huc.sw_version & 0xFFFF;
+		break;
+
+	default:
+		DRM_ERROR("Unknown firmware type %d\n", uc_fw->fw);
+		err = -ENOEXEC;
+		goto fail;
+	}
+
+	if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
+	    uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
+		DRM_NOTE("uC firmware version %d.%d, required %d.%d\n",
+			uc_fw->major_ver_found, uc_fw->minor_ver_found,
+			uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
+		err = -ENOEXEC;
+		goto fail;
+	}
+
+	DRM_DEBUG_DRIVER("firmware version %d.%d OK (minimum %d.%d)\n",
+			uc_fw->major_ver_found, uc_fw->minor_ver_found,
+			uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
+
+	mutex_lock(&dev_priv->drm.struct_mutex);
+	obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
+	mutex_unlock(&dev_priv->drm.struct_mutex);
+	if (IS_ERR_OR_NULL(obj)) {
+		err = obj ? PTR_ERR(obj) : -ENOMEM;
+		goto fail;
+	}
+
+	uc_fw->obj = obj;
+	uc_fw->size = fw->size;
+
+	DRM_DEBUG_DRIVER("uC fw fetch status SUCCESS, obj %p\n",
+			uc_fw->obj);
+
+	release_firmware(fw);
+	uc_fw->fetch_status = INTEL_UC_FIRMWARE_SUCCESS;
+	return;
+
+fail:
+	DRM_WARN("Failed to fetch valid uC firmware from %s (error %d)\n",
+		 uc_fw->path, err);
+	DRM_DEBUG_DRIVER("uC fw fetch status FAIL; err %d, fw %p, obj %p\n",
+		err, fw, uc_fw->obj);
+
+	obj = fetch_and_zero(&uc_fw->obj);
+	if (obj)
+		i915_gem_object_put(obj);
+
+	release_firmware(fw);		/* OK even if fw is NULL */
+	uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
+}
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 41b7351..5fa13dc 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -185,6 +185,8 @@ struct intel_huc {
 
 /* intel_uc.c */
 void intel_uc_init_early(struct drm_i915_private *dev_priv);
+void intel_uc_prepare_fw(struct drm_i915_private *dev_priv,
+			 struct intel_uc_fw *uc_fw);
 int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len);
 int intel_guc_sample_forcewake(struct intel_guc *guc);
 
@@ -195,8 +197,6 @@ void intel_guc_fini(struct drm_i915_private *dev_priv);
 const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status);
 int intel_guc_suspend(struct drm_i915_private *dev_priv);
 int intel_guc_resume(struct drm_i915_private *dev_priv);
-void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
-	struct intel_uc_fw *uc_fw);
 u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
 
 /* i915_guc_submission.c */
-- 
2.9.3



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