diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc_fwif.h | 23 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc_loader.c | 41 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uc.h | 6 |
3 files changed, 53 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h index 3202b32b5638..ed1ab40854a4 100644 --- a/drivers/gpu/drm/i915/intel_guc_fwif.h +++ b/drivers/gpu/drm/i915/intel_guc_fwif.h @@ -145,7 +145,7 @@ * The GuC firmware layout looks like this: * * +-------------------------------+ - * | guc_css_header | + * | uc_css_header | * | | * | contains major/minor version | * +-------------------------------+ @@ -172,9 +172,16 @@ * 3. Length info of each component can be found in header, in dwords. * 4. Modulus and exponent key are not required by driver. They may not appear * in fw. So driver will load a truncated firmware in this case. + * + * HuC firmware layout is same as GuC firmware. + * + * HuC firmware css header is different. However, the only difference is where + * the version information is saved. The uc_css_header is unified to support + * both. Driver should get HuC version from uc_css_header.huc_sw_version, while + * uc_css_header.guc_sw_version for GuC. */ -struct guc_css_header { +struct uc_css_header { uint32_t module_type; /* header_size includes all non-uCode bits, including css_header, rsa * key, modulus key and exponent data. */ @@ -205,8 +212,16 @@ struct guc_css_header { char username[8]; char buildnumber[12]; - uint32_t device_id; - uint32_t guc_sw_version; + union { + struct { + uint32_t branch_client_version; + uint32_t sw_version; + } guc; + struct { + uint32_t sw_version; + uint32_t reserved; + } huc; + }; uint32_t prod_preprod_fw; uint32_t reserved[12]; uint32_t header_info; diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index 90434b2c4575..2d523575d763 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -589,7 +589,7 @@ void intel_uc_fw_fetch(struct drm_i915_private *dev_priv, struct pci_dev *pdev = dev_priv->drm.pdev; struct drm_i915_gem_object *obj; const struct firmware *fw = NULL; - struct guc_css_header *css; + struct uc_css_header *css; size_t size; int err; @@ -606,19 +606,19 @@ void intel_uc_fw_fetch(struct drm_i915_private *dev_priv, uc_fw->path, fw); /* Check the size of the blob before examining buffer contents */ - if (fw->size < sizeof(struct guc_css_header)) { + if (fw->size < sizeof(struct uc_css_header)) { DRM_NOTE("Firmware header is missing\n"); goto fail; } - css = (struct guc_css_header *)fw->data; + 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 guc_css_header)) { + if (uc_fw->header_size != sizeof(struct uc_css_header)) { DRM_NOTE("CSS header definition mismatch\n"); goto fail; } @@ -642,21 +642,36 @@ void intel_uc_fw_fetch(struct drm_i915_private *dev_priv, goto fail; } - /* Header and uCode will be loaded to WOPCM. Size of the two. */ - size = uc_fw->header_size + uc_fw->ucode_size; - if (size > guc_wopcm_size(dev_priv)) { - DRM_NOTE("Firmware is too large to fit in WOPCM\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). */ - uc_fw->major_ver_found = css->guc_sw_version >> 16; - uc_fw->minor_ver_found = css->guc_sw_version & 0xFFFF; + 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 > 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) { diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 905ed445d559..bb7faa404352 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -100,6 +100,11 @@ enum intel_uc_fw_status { INTEL_UC_FIRMWARE_SUCCESS }; +enum intel_uc_fw_type { + INTEL_UC_FW_TYPE_GUC, + INTEL_UC_FW_TYPE_HUC +}; + /* * This structure encapsulates all the data needed during the process * of fetching, caching, and loading the firmware image into the GuC. @@ -116,6 +121,7 @@ struct intel_uc_fw { uint16_t major_ver_found; uint16_t minor_ver_found; + enum intel_uc_fw_type fw; uint32_t header_size; uint32_t header_offset; uint32_t rsa_size; |
