[PATCH 3/3] drm/xe: Update GuC/HuC firmware autoselect logic
Srivatsa, Anusha
anusha.srivatsa at intel.com
Mon Apr 3 18:09:10 UTC 2023
> -----Original Message-----
> From: De Marchi, Lucas <lucas.demarchi at intel.com>
> Sent: Wednesday, March 29, 2023 8:46 PM
> To: Srivatsa, Anusha <anusha.srivatsa at intel.com>
> Cc: intel-xe at lists.freedesktop.org; Harrison, John C
> <john.c.harrison at intel.com>; Ceraolo Spurio, Daniele
> <daniele.ceraolospurio at intel.com>; dri-devel at lists.freedesktop.org; Daniel
> Vetter <daniel.vetter at ffwll.ch>; Dave Airlie <airlied at redhat.com>
> Subject: Re: [PATCH 3/3] drm/xe: Update GuC/HuC firmware autoselect logic
>
> On Tue, Mar 28, 2023 at 04:31:13PM -0700, Anusha Srivatsa wrote:
> >
> >
> >> -----Original Message-----
> >> From: De Marchi, Lucas <lucas.demarchi at intel.com>
> >> Sent: Thursday, March 23, 2023 10:18 PM
> >> To: intel-xe at lists.freedesktop.org
> >> Cc: Srivatsa, Anusha <anusha.srivatsa at intel.com>; Harrison, John C
> >> <john.c.harrison at intel.com>; Ceraolo Spurio, Daniele
> >> <daniele.ceraolospurio at intel.com>; dri-devel at lists.freedesktop.org;
> >> Daniel Vetter <daniel.vetter at ffwll.ch>; Dave Airlie
> >> <airlied at redhat.com>; De Marchi, Lucas <lucas.demarchi at intel.com>
> >> Subject: [PATCH 3/3] drm/xe: Update GuC/HuC firmware autoselect logic
> >>
> >> Update the logic to autoselect GuC/HuC for the platforms with the
> >> following
> >> improvements:
> >>
> >> - Document what is the firmware file that is expected to be
> >> loaded and what is checked from blob headers
> >> - When the platform is under force-probe it's desired to enforce
> >> the full-version requirement so the correct firmware is used
> >> before widespread adoption and backward-compatibility
> >>
> >Extra line ^
> >
> >> commitments
> >> - Directory from which we expect firmware blobs to be available in
> >> upstream linux-firmware repository depends on the platform: for
> >> the ones supported by i915 it uses the i915/ directory, but the ones
> >> expected to be supported by xe, it's on the xe/ directory. This
> >> means that for platforms in the intersection, the firmware is
> >> loaded from a different directory, but that is not much important
> >> in the firmware repo and it avoids firmware duplication.
> >>
> >> - Make the table with the firmware definitions clearly state the
> >> versions being expected. Now with macros to select the version it's
> >> possible to choose between full-version/major-version for GuC and
> >> full-version/no-version for HuC. These are similar to the macros used
> >> in i915, but implemented in a slightly different way to avoid
> >> duplicating the macros for each firmware/type and functionality,
> >> besides adding the support for different directories.
> >>
> >> - There is no check added regarding force-probe since xe should
> >> reuse the same firmware files published for i915 for past
> >> platforms. This can be improved later with additional
> >> kunit checking against a hardcoded list of platforms that
> >Extra line here.
> >
> >> falls in this category.
> >> - As mentioned in the TODO, the major version fallback was not
> >> implemented before as currently each platform only supports one
> >> major. That can be easily added later.
> >>
> >> - GuC version for MTL and PVC were updated to 70.6.4, using the exact
> >> full version, while the
> >>
> >> After this the GuC firmware used by PVC changes to pvc_guc_70.5.2.bin
> >> since it's using a file not published yet.
> >>
> >> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
> >> ---
> >> drivers/gpu/drm/xe/xe_uc_fw.c | 315 +++++++++++++++++-----------
> >> drivers/gpu/drm/xe/xe_uc_fw.h | 2 +-
> >> drivers/gpu/drm/xe/xe_uc_fw_types.h | 7 +
> >> 3 files changed, 204 insertions(+), 120 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/xe/xe_uc_fw.c
> >> b/drivers/gpu/drm/xe/xe_uc_fw.c index 174c42873ebb..653bc3584cc5
> >> 100644
> >> --- a/drivers/gpu/drm/xe/xe_uc_fw.c
> >> +++ b/drivers/gpu/drm/xe/xe_uc_fw.c
> >> @@ -17,6 +17,137 @@
> >> #include "xe_mmio.h"
> >> #include "xe_uc_fw.h"
> >>
> >> +/*
> >> + * List of required GuC and HuC binaries per-platform. They must be
> >> +ordered
> >> + * based on platform, from newer to older.
> >> + *
> >> + * Versioning follows the guidelines from
> >> + * Documentation/driver-api/firmware/firmware-usage-guidelines.rst.
> >> +There is a
> >> + * distinction for platforms being officially supported by the driver or not.
> >> + * Platforms not available publicly or not yet officially supported
> >> +by the
> >> + * driver (under force-probe), use the mmp_ver(): the firmware
> >> +autoselect logic
> >> + * will select the firmware from disk with filename that matches the
> >> +full
> >> + * "mpp version", i.e. major.minor.patch. mmp_ver() should only be
> >> +used for
> >> + * this case.
> >> + *
> >> + * For platforms officially supported by the driver, the filename
> >> +always only
> >> + * ever contains the major version (GuC) or no version at all (HuC).
> >> + *
> >> + * After loading the file, the driver parses the versions embedded in the blob.
> >> + * The major version needs to match a major version supported by the
> >> +driver (if
> >> + * any). The minor version is also checked and a notice emitted to
> >> +the log if
> >> + * the version found is smaller than the version wanted. This is
> >> +done only for
> >> + * informational purposes so users may have a chance to upgrade, but
> >> +the driver
> >> + * still loads and use the older firmware.
> >> + *
> >> + * Examples:
> >> + *
> >> + * 1) Platform officially supported by i915 - using Tigerlake as example.
> >> + * Driver loads the following firmware blobs from disk:
> >> + *
> >> + * - i915/tgl_guc_<major>.bin
> >> + * - i915/tgl_huc.bin
> >> + *
> >> + * <major> number for GuC is checked that it matches the version inside
> >> + * the blob. <minor> version is checked and if smaller than the expected
> >> + * an info message is emitted about that.
> >> + *
> >> + * 1) XE_<FUTUREINTELPLATFORM>, still under require_force_probe.
> >> Using
> >> + * "wipplat" as a short-name. Driver loads the following firmware blobs
> >> + * from disk:
> >> + *
> >> + * - xe/wipplat_guc_<major>.<minor>.<patch>.bin
> >> + * - xe/wipplat_huc_<major>.<minor>.<patch>.bin
> >> + *
> >> + * <major> and <minor> are checked that they match the version inside
> >> + * the blob. Both of them need to match exactly what the driver is
> >> + * expecting, otherwise it fails.
> >> + *
> >> + * 3) Platform officially supported by xe and out of force-probe. Using
> >> + * "plat" as a short-name. Except for the different directory, the
> >> + * behavior is the same as (1). Driver loads the following firmware
> >> + * blobs from disk:
> >> + *
> >> + * - xe/plat_guc_<major>.bin
> >> + * - xe/plat_huc.bin
> >> + *
> >> + * <major> number for GuC is checked that it matches the version inside
> >> + * the blob. <minor> version is checked and if smaller than the expected
> >> + * an info message is emitted about that.
> >> + *
> >> + * For the platforms already released with a major version, they
> >> +should never be
> >> + * removed from the table. Instead new entries with newer versions
> >> +may be added
> >> + * before them, so they take precedence.
> >> + *
> >> + * TODO: Currently there's no fallback on major version. That's
> >> +because xe
> >> + * driver only supports the one major version of each firmware in the table.
> >> + * This needs to be fixed when the major version of GuC is updated.
> >> + */
> >> +
> >> +struct uc_fw_entry {
> >> + enum xe_platform platform;
> >> + struct {
> >> + const char *path;
> >> + u16 major;
> >> + u16 minor;
> >> + bool full_ver_required;
> >> + };
> >> +};
> >> +
> >> +struct fw_blobs_by_type {
> >> + const struct uc_fw_entry *entries;
> >> + u32 count;
> >> +};
> >> +
> >> +#define XE_GUC_FIRMWARE_DEFS(fw_def, mmp_ver, major_ver)
> >> \
> >> + fw_def(METEORLAKE, mmp_ver( i915, guc, mtl, 70, 6, 4))
> >> \
> >> + fw_def(PVC, mmp_ver( xe, guc, pvc, 70, 6, 4))
> >> \
> >> + fw_def(ALDERLAKE_P, major_ver(i915, guc, adlp, 70, 5))
> >> \
> >> + fw_def(ALDERLAKE_S, major_ver(i915, guc, tgl, 70, 5))
> >> \
> >> + fw_def(DG2, major_ver(i915, guc, dg2, 70, 5))
> >> \
> >> + fw_def(DG1, major_ver(i915, guc, dg1, 70, 5))
> >> \
> >> + fw_def(TIGERLAKE, major_ver(i915, guc, tgl, 70, 5))
> >> +
> >> +#define XE_HUC_FIRMWARE_DEFS(fw_def, mmp_ver, no_ver)
> >> \
> >> + fw_def(ALDERLAKE_S, no_ver(i915, huc, tgl))
> >> \
> >> + fw_def(DG1, no_ver(i915, huc, dg1))
> >> \
> >> + fw_def(TIGERLAKE, no_ver(i915, huc, tgl))
> >> +
> >> +#define MAKE_FW_PATH(dir__, uc__, shortname__, version__)
> >> \
> >> + __stringify(dir__) "/" __stringify(shortname__) "_"
> >> +__stringify(uc__)
> >> version__ ".bin"
> >> +
> >> +#define fw_filename_mmp_ver(dir_, uc_, shortname_, a, b, c)
> >> \
> >> + MAKE_FW_PATH(dir_, uc_, shortname_, "_" __stringify(a ## . ## b ## .
> >> ## c))
> >> +#define fw_filename_major_ver(dir_, uc_, shortname_, a, b)
> >> \
> >> + MAKE_FW_PATH(dir_, uc_, shortname_, "_" __stringify(a)) #define
> >> +fw_filename_no_ver(dir_, uc_, shortname_)
> >> \
> >> + MAKE_FW_PATH(dir_, uc_, shortname_, "")
> >> +
> >> +#define uc_fw_entry_mmp_ver(dir_, uc_, shortname_, a, b, c)
> >> \
> >> + { fw_filename_mmp_ver(dir_, uc_, shortname_, a, b, c),
> >> \
> >> + a, b, true }
> >> +#define uc_fw_entry_major_ver(dir_, uc_, shortname_, a, b)
> >> \
> >> + { fw_filename_major_ver(dir_, uc_, shortname_, a, b),
> >> \
> >> + a, b }
> >Why is b required here?
>
> because it is setting the minor in the corresponding struct uc_fw_entry.
> From the tables above, basically for the rows using major_ver(), it will use up to
> the major version in the arguments to decide what is the
> *file* to load. The path for the file is constructed with the macro above, so it
> can be used by both MODULE_FIRMWARE and by setting the patch in the
> uc_fw_entry. The same major_ver() is used to fill out the rest of the
> uc_fw_entry, where we need the minor too.
>
> See doucumentation above. Copying the relevant part here:
>
> <major> number for GuC is checked that it matches the version inside
> the blob. <minor> version is checked and if smaller than the expected
> an info message is emitted about that.
>
>
> Lucas De Marchi
Thanks for the explanation. The auto select logic looks good.
With the extra lines removed from commit message,
Reviewed-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
> >
> >
> >Anusha
> >> +#define uc_fw_entry_no_ver(dir_, uc_, shortname_)
> >> \
> >> + { fw_filename_no_ver(dir_, uc_, shortname_),
> >> \
> >> + 0, 0 }
> >> +
> >> +/* All blobs need to be declared via MODULE_FIRMWARE() */ #define
> >> +XE_UC_MODULE_FIRMWARE(platform__, fw_filename)
> >> \
> >> + MODULE_FIRMWARE(fw_filename);
> >> +
> >> +#define XE_UC_FW_ENTRY(platform__, entry__)
> >> \
> >> + {
> >> \
> >> + .platform = XE_ ## platform__,
> >> \
> >> + entry__,
> >> \
> >> + },
> >> +
> >> +XE_GUC_FIRMWARE_DEFS(XE_UC_MODULE_FIRMWARE,
> >> \
> >> + fw_filename_mmp_ver, fw_filename_major_ver)
> >> +XE_HUC_FIRMWARE_DEFS(XE_UC_MODULE_FIRMWARE,
> >> \
> >> + fw_filename_mmp_ver, fw_filename_no_ver)
> >> +
> >> static struct xe_gt *
> >> __uc_fw_to_gt(struct xe_uc_fw *uc_fw, enum xe_uc_fw_type type) { @@
> >> -
> >> 37,123 +168,38 @@ static struct xe_device *uc_fw_to_xe(struct
> >> xe_uc_fw
> >> *uc_fw)
> >> return gt_to_xe(uc_fw_to_gt(uc_fw)); }
> >>
> >> -/*
> >> - * List of required GuC and HuC binaries per-platform.
> >> - * Must be ordered based on platform, from newer to older.
> >> - */
> >> -#define XE_GUC_FIRMWARE_DEFS(fw_def, guc_def) \
> >> - fw_def(METEORLAKE, guc_def(mtl, 70, 5, 2)) \
> >> - fw_def(PVC, guc_def(pvc, 70, 5, 2)) \
> >> - fw_def(ALDERLAKE_P, guc_def(adlp, 70, 5, 2)) \
> >> - fw_def(ALDERLAKE_S, guc_def(tgl, 70, 5, 2)) \
> >> - fw_def(DG2, guc_def(dg2, 70, 5, 2)) \
> >> - fw_def(DG1, guc_def(dg1, 70, 5, 2)) \
> >> - fw_def(TIGERLAKE, guc_def(tgl, 70, 5, 2))
> >> -
> >> -#define XE_HUC_FIRMWARE_DEFS(fw_def, huc_def, huc_ver) \
> >> - fw_def(ALDERLAKE_S, huc_def(tgl)) \
> >> - fw_def(DG1, huc_def(dg1)) \
> >> - fw_def(TIGERLAKE, huc_def(tgl))
> >> -
> >> -#define __MAKE_HUC_FW_PATH(prefix_, name_) \
> >> - "i915/" \
> >> - __stringify(prefix_) "_" name_ ".bin"
> >> -
> >> -#define __MAKE_UC_FW_PATH_MAJOR(prefix_, name_, major_) \
> >> - "i915/" \
> >> - __stringify(prefix_) "_" name_ "_" \
> >> - __stringify(major_) ".bin"
> >> -
> >> -#define __MAKE_UC_FW_PATH_FULL_VER(prefix_, name_, major_, minor_,
> >> patch_) \
> >> - "i915/" \
> >> - __stringify(prefix_) "_" name_ "_" \
> >> - __stringify(major_) "." \
> >> - __stringify(minor_) "." \
> >> - __stringify(patch_) ".bin"
> >> -
> >> -#define MAKE_GUC_FW_PATH(prefix_, major_, minor_, patch_) \
> >> - __MAKE_UC_FW_PATH_MAJOR(prefix_, "guc", major_)
> >> -
> >> -#define MAKE_HUC_FW_PATH(prefix_) \
> >> - __MAKE_HUC_FW_PATH(prefix_, "huc")
> >> -
> >> -#define MAKE_HUC_FW_PATH_FULL_VER(prefix_, major_, minor_, patch_)
> \
> >> - __MAKE_UC_FW_PATH_FULL_VER(prefix_, "huc", major_, minor_,
> >> patch_)
> >> -
> >> -
> >> -/* All blobs need to be declared via MODULE_FIRMWARE() */ -#define
> >> XE_UC_MODULE_FW(platform_, uc_) \
> >> - MODULE_FIRMWARE(uc_);
> >> -
> >> -XE_GUC_FIRMWARE_DEFS(XE_UC_MODULE_FW, MAKE_GUC_FW_PATH) -
> >> XE_HUC_FIRMWARE_DEFS(XE_UC_MODULE_FW, MAKE_HUC_FW_PATH,
> >> MAKE_HUC_FW_PATH_FULL_VER)
> >> -
> >> -/* The below structs and macros are used to iterate across the list
> >> of blobs */ - struct __packed uc_fw_blob {
> >> - u8 major;
> >> - u8 minor;
> >> - const char *path;
> >> -};
> >> -
> >> -#define UC_FW_BLOB(major_, minor_, path_) \
> >> - { .major = major_, .minor = minor_, .path = path_ }
> >> -
> >> -#define GUC_FW_BLOB(prefix_, major_, minor_, patch_) \
> >> - UC_FW_BLOB(major_, minor_, \
> >> - MAKE_GUC_FW_PATH(prefix_, major_, minor_, patch_))
> >> -
> >> -#define HUC_FW_BLOB(prefix_) \
> >> - UC_FW_BLOB(0, 0, MAKE_HUC_FW_PATH(prefix_))
> >> -
> >> -#define HUC_FW_VERSION_BLOB(prefix_, major_, minor_, bld_num_) \
> >> - UC_FW_BLOB(major_, minor_, \
> >> - MAKE_HUC_FW_PATH_FULL_VER(prefix_, major_, minor_,
> >> bld_num_))
> >> -
> >> -struct uc_fw_platform_requirement {
> >> - enum xe_platform p;
> >> - const struct uc_fw_blob blob;
> >> -};
> >> -
> >> -#define MAKE_FW_LIST(platform_, uc_) \ -{ \
> >> - .p = XE_##platform_, \
> >> - .blob = uc_, \
> >> -},
> >> -
> >> -struct fw_blobs_by_type {
> >> - const struct uc_fw_platform_requirement *blobs;
> >> - u32 count;
> >> -};
> >> -
> >> static void
> >> uc_fw_auto_select(struct xe_device *xe, struct xe_uc_fw *uc_fw) {
> >> - static const struct uc_fw_platform_requirement blobs_guc[] = {
> >> - XE_GUC_FIRMWARE_DEFS(MAKE_FW_LIST, GUC_FW_BLOB)
> >> + static const struct uc_fw_entry entries_guc[] = {
> >> + XE_GUC_FIRMWARE_DEFS(XE_UC_FW_ENTRY,
> >> + uc_fw_entry_mmp_ver,
> >> + uc_fw_entry_major_ver)
> >> };
> >> - static const struct uc_fw_platform_requirement blobs_huc[] = {
> >> - XE_HUC_FIRMWARE_DEFS(MAKE_FW_LIST, HUC_FW_BLOB,
> >> HUC_FW_VERSION_BLOB)
> >> + static const struct uc_fw_entry entries_huc[] = {
> >> + XE_HUC_FIRMWARE_DEFS(XE_UC_FW_ENTRY,
> >> + uc_fw_entry_mmp_ver,
> >> + uc_fw_entry_no_ver)
> >> };
> >> static const struct fw_blobs_by_type
> blobs_all[XE_UC_FW_NUM_TYPES]
> >> = {
> >> - [XE_UC_FW_TYPE_GUC] = { blobs_guc, ARRAY_SIZE(blobs_guc)
> >> },
> >> - [XE_UC_FW_TYPE_HUC] = { blobs_huc, ARRAY_SIZE(blobs_huc)
> >> },
> >> + [XE_UC_FW_TYPE_GUC] = { entries_guc,
> >> ARRAY_SIZE(entries_guc) },
> >> + [XE_UC_FW_TYPE_HUC] = { entries_huc,
> >> ARRAY_SIZE(entries_huc) },
> >> };
> >> - static const struct uc_fw_platform_requirement *fw_blobs;
> >> + static const struct uc_fw_entry *entries;
> >> enum xe_platform p = xe->info.platform;
> >> - u32 fw_count;
> >> + u32 count;
> >> int i;
> >>
> >> XE_BUG_ON(uc_fw->type >= ARRAY_SIZE(blobs_all));
> >> - fw_blobs = blobs_all[uc_fw->type].blobs;
> >> - fw_count = blobs_all[uc_fw->type].count;
> >> -
> >> - for (i = 0; i < fw_count && p <= fw_blobs[i].p; i++) {
> >> - if (p == fw_blobs[i].p) {
> >> - const struct uc_fw_blob *blob = &fw_blobs[i].blob;
> >> -
> >> - uc_fw->path = blob->path;
> >> - uc_fw->major_ver_wanted = blob->major;
> >> - uc_fw->minor_ver_wanted = blob->minor;
> >> + entries = blobs_all[uc_fw->type].entries;
> >> + count = blobs_all[uc_fw->type].count;
> >> +
> >> + for (i = 0; i < count && p <= entries[i].platform; i++) {
> >> + if (p == entries[i].platform) {
> >> + uc_fw->path = entries[i].path;
> >> + uc_fw->major_ver_wanted = entries[i].major;
> >> + uc_fw->minor_ver_wanted = entries[i].minor;
> >> + uc_fw->full_ver_required = entries[i].full_ver_required;
> >> break;
> >> }
> >> }
> >> @@ -227,6 +273,47 @@ static void guc_read_css_info(struct xe_uc_fw
> >> *uc_fw, struct uc_css_header *css)
> >> uc_fw->private_data_size = css->private_data_size; }
> >>
> >> +static int uc_fw_check_version_requirements(struct xe_uc_fw *uc_fw) {
> >> + struct xe_device *xe = uc_fw_to_xe(uc_fw);
> >> +
> >> + /* Driver has no requirement on any version, any is good. */
> >> + if (!uc_fw->major_ver_wanted)
> >> + return 0;
> >> +
> >> + /*
> >> + * If full version is required, both major and minor should match.
> >> + * Otherwise, at least the major version.
> >> + */
> >> + if (uc_fw->major_ver_wanted != uc_fw->major_ver_found ||
> >> + (uc_fw->full_ver_required &&
> >> + uc_fw->minor_ver_wanted != uc_fw->minor_ver_found)) {
> >> + drm_notice(&xe->drm, "%s firmware %s: unexpected version:
> >> %u.%u != %u.%u\n",
> >> + xe_uc_fw_type_repr(uc_fw->type), uc_fw->path,
> >> + uc_fw->major_ver_found, uc_fw->minor_ver_found,
> >> + uc_fw->major_ver_wanted, uc_fw-
> >> >minor_ver_wanted);
> >> + goto fail;
> >> + }
> >> +
> >> + if (uc_fw->minor_ver_wanted > uc_fw->minor_ver_found) {
> >> + drm_notice(&xe->drm, "%s firmware (%u.%u) is recommended,
> >> but only (%u.%u) was found in %s\n",
> >> + xe_uc_fw_type_repr(uc_fw->type),
> >> + uc_fw->major_ver_wanted, uc_fw-
> >> >minor_ver_wanted,
> >> + uc_fw->major_ver_found, uc_fw->minor_ver_found,
> >> + uc_fw->path);
> >> + drm_info(&xe->drm, "Consider updating your linux-firmware
> >> pkg or downloading from %s\n",
> >> + XE_UC_FIRMWARE_URL);
> >> + }
> >> +
> >> + return 0;
> >> +
> >> +fail:
> >> + if (xe_uc_fw_is_overridden(uc_fw))
> >> + return 0;
> >> +
> >> + return -ENOEXEC;
> >> +}
> >> +
> >> int xe_uc_fw_init(struct xe_uc_fw *uc_fw) {
> >> struct xe_device *xe = uc_fw_to_xe(uc_fw); @@ -308,19 +395,9 @@
> int
> >> xe_uc_fw_init(struct xe_uc_fw *uc_fw)
> >> uc_fw->minor_ver_found = FIELD_GET(CSS_SW_VERSION_UC_MINOR,
> >> css->sw_version);
> >>
> >> - if (uc_fw->major_ver_wanted) {
> >> - if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
> >> - uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
> >> - drm_notice(&xe->drm, "%s firmware %s: unexpected
> >> version: %u.%u != %u.%u\n",
> >> - xe_uc_fw_type_repr(uc_fw->type), uc_fw-
> >> >path,
> >> - uc_fw->major_ver_found, uc_fw-
> >> >minor_ver_found,
> >> - uc_fw->major_ver_wanted, uc_fw-
> >> >minor_ver_wanted);
> >> - if (!xe_uc_fw_is_overridden(uc_fw)) {
> >> - err = -ENOEXEC;
> >> - goto fail;
> >> - }
> >> - }
> >> - }
> >> + err = uc_fw_check_version_requirements(uc_fw);
> >> + if (err)
> >> + goto fail;
> >>
> >> if (uc_fw->type == XE_UC_FW_TYPE_GUC)
> >> guc_read_css_info(uc_fw, css);
> >> diff --git a/drivers/gpu/drm/xe/xe_uc_fw.h
> >> b/drivers/gpu/drm/xe/xe_uc_fw.h index bf31c3bb0e0f..e16267e71280
> >> 100644
> >> --- a/drivers/gpu/drm/xe/xe_uc_fw.h
> >> +++ b/drivers/gpu/drm/xe/xe_uc_fw.h
> >> @@ -175,6 +175,6 @@ static inline u32 xe_uc_fw_get_upload_size(struct
> >> xe_uc_fw *uc_fw)
> >> return __xe_uc_fw_get_upload_size(uc_fw);
> >> }
> >>
> >> -#define XE_UC_FIRMWARE_URL
> >> "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
> >> firmware.git/tree/i915"
> >> +#define XE_UC_FIRMWARE_URL
> >> "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
> firmware.git"
> >>
> >> #endif
> >> diff --git a/drivers/gpu/drm/xe/xe_uc_fw_types.h
> >> b/drivers/gpu/drm/xe/xe_uc_fw_types.h
> >> index 1cfd30a655df..6c595aaa2399 100644
> >> --- a/drivers/gpu/drm/xe/xe_uc_fw_types.h
> >> +++ b/drivers/gpu/drm/xe/xe_uc_fw_types.h
> >> @@ -78,6 +78,13 @@ struct xe_uc_fw {
> >> const char *path;
> >> /** @user_overridden: user provided path to uC firmware via
> >> modparam */
> >> bool user_overridden;
> >> + /**
> >> + * @full_version_required: driver still under development and not ready
> >> + * for backward-compatible firmware. To be used only for **new**
> >> + * platforms, i.e. still under require_force_probe protection and not
> >> + * supported by i915.
> >> + */
> >> + bool full_ver_required;
> >> /** @size: size of uC firmware including css header */
> >> size_t size;
> >>
> >> --
> >> 2.39.0
> >
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