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-rw-r--r--drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c95
-rw-r--r--drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.h1
-rw-r--r--drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c50
-rw-r--r--drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h1
4 files changed, 127 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
index 4c728ba6f4f7..3b4ff3e31aed 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
@@ -11,6 +11,7 @@
#include "gt/intel_ring.h"
#include "intel_gsc_binary_headers.h"
#include "intel_gsc_fw.h"
+#include "intel_gsc_uc_heci_cmd_submit.h"
#define GSC_FW_STATUS_REG _MMIO(0x116C40)
#define GSC_FW_CURRENT_STATE REG_GENMASK(3, 0)
@@ -303,6 +304,88 @@ static int gsc_fw_wait(struct intel_gt *gt)
500);
}
+struct intel_gsc_mkhi_header {
+ u8 group_id;
+#define MKHI_GROUP_ID_GFX_SRV 0x30
+
+ u8 command;
+#define MKHI_GFX_SRV_GET_HOST_COMPATIBILITY_VERSION (0x42)
+
+ u8 reserved;
+ u8 result;
+} __packed;
+
+struct mtl_gsc_ver_msg_in {
+ struct intel_gsc_mtl_header header;
+ struct intel_gsc_mkhi_header mkhi;
+} __packed;
+
+struct mtl_gsc_ver_msg_out {
+ struct intel_gsc_mtl_header header;
+ struct intel_gsc_mkhi_header mkhi;
+ u16 proj_major;
+ u16 compat_major;
+ u16 compat_minor;
+ u16 reserved[5];
+} __packed;
+
+#define GSC_VER_PKT_SZ SZ_4K
+
+static int gsc_fw_query_compatibility_version(struct intel_gsc_uc *gsc)
+{
+ struct intel_gt *gt = gsc_uc_to_gt(gsc);
+ struct mtl_gsc_ver_msg_in *msg_in;
+ struct mtl_gsc_ver_msg_out *msg_out;
+ struct i915_vma *vma;
+ u64 offset;
+ void *vaddr;
+ int err;
+
+ err = intel_guc_allocate_and_map_vma(&gt->uc.guc, GSC_VER_PKT_SZ * 2,
+ &vma, &vaddr);
+ if (err) {
+ gt_err(gt, "failed to allocate vma for GSC version query\n");
+ return err;
+ }
+
+ offset = i915_ggtt_offset(vma);
+ msg_in = vaddr;
+ msg_out = vaddr + GSC_VER_PKT_SZ;
+
+ intel_gsc_uc_heci_cmd_emit_mtl_header(&msg_in->header,
+ HECI_MEADDRESS_MKHI,
+ sizeof(*msg_in), 0);
+ msg_in->mkhi.group_id = MKHI_GROUP_ID_GFX_SRV;
+ msg_in->mkhi.command = MKHI_GFX_SRV_GET_HOST_COMPATIBILITY_VERSION;
+
+ err = intel_gsc_uc_heci_cmd_submit_packet(&gt->uc.gsc,
+ offset,
+ sizeof(*msg_in),
+ offset + GSC_VER_PKT_SZ,
+ GSC_VER_PKT_SZ);
+ if (err) {
+ gt_err(gt,
+ "failed to submit GSC request for compatibility version: %d\n",
+ err);
+ goto out_vma;
+ }
+
+ if (msg_out->header.message_size != sizeof(*msg_out)) {
+ gt_err(gt, "invalid GSC reply length %u [expected %zu], s=0x%x, f=0x%x, r=0x%x\n",
+ msg_out->header.message_size, sizeof(*msg_out),
+ msg_out->header.status, msg_out->header.flags, msg_out->mkhi.result);
+ err = -EPROTO;
+ goto out_vma;
+ }
+
+ gsc->fw.file_selected.ver.major = msg_out->compat_major;
+ gsc->fw.file_selected.ver.minor = msg_out->compat_minor;
+
+out_vma:
+ i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP);
+ return err;
+}
+
int intel_gsc_uc_fw_upload(struct intel_gsc_uc *gsc)
{
struct intel_gt *gt = gsc_uc_to_gt(gsc);
@@ -360,11 +443,21 @@ int intel_gsc_uc_fw_upload(struct intel_gsc_uc *gsc)
if (err)
goto fail;
+ err = gsc_fw_query_compatibility_version(gsc);
+ if (err)
+ goto fail;
+
+ /* we only support compatibility version 1.0 at the moment */
+ err = intel_uc_check_file_version(gsc_fw, NULL);
+ if (err)
+ goto fail;
+
/* FW is not fully operational until we enable SW proxy */
intel_uc_fw_change_status(gsc_fw, INTEL_UC_FIRMWARE_TRANSFERRED);
- gt_info(gt, "Loaded GSC firmware %s (r%u.%u.%u.%u, svn%u)\n",
+ gt_info(gt, "Loaded GSC firmware %s (cv%u.%u, r%u.%u.%u.%u, svn %u)\n",
gsc_fw->file_selected.path,
+ gsc_fw->file_selected.ver.major, gsc_fw->file_selected.ver.minor,
gsc->release.major, gsc->release.minor,
gsc->release.patch, gsc->release.build,
gsc->security_version);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.h b/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.h
index ef70e304904a..09d3fbdad05a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.h
@@ -17,6 +17,7 @@ struct intel_gsc_mtl_header {
#define GSC_HECI_VALIDITY_MARKER 0xA578875A
u8 heci_client_id;
+#define HECI_MEADDRESS_MKHI 7
#define HECI_MEADDRESS_PROXY 10
#define HECI_MEADDRESS_PXP 17
#define HECI_MEADDRESS_HDCP 18
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index 5374a275daa7..d408856ae4c0 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -787,6 +787,34 @@ static int try_firmware_load(struct intel_uc_fw *uc_fw, const struct firmware **
return 0;
}
+int intel_uc_check_file_version(struct intel_uc_fw *uc_fw, bool *old_ver)
+{
+ struct intel_gt *gt = __uc_fw_to_gt(uc_fw);
+ struct intel_uc_fw_file *wanted = &uc_fw->file_wanted;
+ struct intel_uc_fw_file *selected = &uc_fw->file_selected;
+
+ if (!wanted->ver.major || !selected->ver.major)
+ return 0;
+
+ /* Check the file's major version was as it claimed */
+ if (selected->ver.major != wanted->ver.major) {
+ UNEXPECTED(gt, "%s firmware %s: unexpected version: %u.%u != %u.%u\n",
+ intel_uc_fw_type_repr(uc_fw->type), selected->path,
+ selected->ver.major, selected->ver.minor,
+ wanted->ver.major, wanted->ver.minor);
+ if (!intel_uc_fw_is_overridden(uc_fw))
+ return -ENOEXEC;
+ } else if (old_ver) {
+ if (selected->ver.minor < wanted->ver.minor)
+ *old_ver = true;
+ else if ((selected->ver.minor == wanted->ver.minor) &&
+ (selected->ver.patch < wanted->ver.patch))
+ *old_ver = true;
+ }
+
+ return 0;
+}
+
/**
* intel_uc_fw_fetch - fetch uC firmware
* @uc_fw: uC firmware
@@ -854,25 +882,9 @@ int intel_uc_fw_fetch(struct intel_uc_fw *uc_fw)
goto fail;
}
- if (uc_fw->file_wanted.ver.major && uc_fw->file_selected.ver.major) {
- /* Check the file's major version was as it claimed */
- if (uc_fw->file_selected.ver.major != uc_fw->file_wanted.ver.major) {
- UNEXPECTED(gt, "%s firmware %s: unexpected version: %u.%u != %u.%u\n",
- intel_uc_fw_type_repr(uc_fw->type), uc_fw->file_selected.path,
- uc_fw->file_selected.ver.major, uc_fw->file_selected.ver.minor,
- uc_fw->file_wanted.ver.major, uc_fw->file_wanted.ver.minor);
- if (!intel_uc_fw_is_overridden(uc_fw)) {
- err = -ENOEXEC;
- goto fail;
- }
- } else {
- if (uc_fw->file_selected.ver.minor < uc_fw->file_wanted.ver.minor)
- old_ver = true;
- else if ((uc_fw->file_selected.ver.minor == uc_fw->file_wanted.ver.minor) &&
- (uc_fw->file_selected.ver.patch < uc_fw->file_wanted.ver.patch))
- old_ver = true;
- }
- }
+ err = intel_uc_check_file_version(uc_fw, &old_ver);
+ if (err)
+ goto fail;
if (old_ver && uc_fw->file_selected.ver.major) {
/* Preserve the version that was really wanted */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
index 8f0df23a8c3d..9a431726c8d5 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
@@ -292,6 +292,7 @@ static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
void intel_uc_fw_version_from_gsc_manifest(struct intel_uc_fw_ver *ver,
const void *data);
+int intel_uc_check_file_version(struct intel_uc_fw *uc_fw, bool *old_ver);
void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw,
enum intel_uc_fw_type type,
bool needs_ggtt_mapping);
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-11 14:51:48 +0000