guc->send = intel_guc_send_mmio;
}
+static void fetch_uc_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;
+
+ uc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
+
+ 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->type) {
+ 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->type);
+ err = -ENOEXEC;
+ goto fail;
+ }
+
+ if (uc_fw->major_ver_wanted == 0 && uc_fw->minor_ver_wanted == 0) {
+ DRM_NOTE("Skipping uC firmware version check\n");
+ } else 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);
+
+ obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
+ if (IS_ERR(obj)) {
+ err = PTR_ERR(obj);
+ 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);
+
+ release_firmware(fw); /* OK even if fw is NULL */
+ uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
+}
+
void intel_uc_init_fw(struct drm_i915_private *dev_priv)
{
if (dev_priv->huc.fw.path)
- intel_uc_prepare_fw(dev_priv, &dev_priv->huc.fw);
+ fetch_uc_fw(dev_priv, &dev_priv->huc.fw);
if (dev_priv->guc.fw.path)
- intel_uc_prepare_fw(dev_priv, &dev_priv->guc.fw);
+ fetch_uc_fw(dev_priv, &dev_priv->guc.fw);
}
void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
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;
-
- uc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
-
- 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->type) {
- 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->type);
- err = -ENOEXEC;
- goto fail;
- }
-
- if (uc_fw->major_ver_wanted == 0 && uc_fw->minor_ver_wanted == 0) {
- DRM_NOTE("Skipping uC firmware version check\n");
- } else 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);
-
- obj = i915_gem_object_create_from_data(dev_priv, fw->data, fw->size);
- if (IS_ERR(obj)) {
- err = PTR_ERR(obj);
- 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);
-
- release_firmware(fw); /* OK even if fw is NULL */
- uc_fw->fetch_status = INTEL_UC_FIRMWARE_FAIL;
-}
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