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In addition of checking if we are running on the BATTLEMAGE, we should also check for not being a VF driver, as VFs can't access necessary registers, and doing so leads to: | .. [drm] GT0: VF is trying to read an inaccessible register 0x35b004+0x0 | RIP: 0010:xe_gt_sriov_vf_read32+0x5e2/0x8a0 [xe] | Call Trace: | xe_mmio_read32+0x110/0x280 [xe] | read_residency_counter+0x42/0xd0 [xe] | dgfx_pkg_residencies_show+0x115/0x190 [xe] | .. [drm] Package G2 counter failed to read, ret -19 or | .. [drm] GT0: VF is trying to read an inaccessible register 0x35b004+0x0 | RIP: 0010:xe_gt_sriov_vf_read32+0x5e2/0x8a0 [xe] | Call Trace: | xe_mmio_read32+0x110/0x280 [xe] | read_residency_counter+0x42/0xd0 [xe] | dgfx_pcie_link_residencies_show+0xe7/0x160 [xe] | .. [drm] PCIE LINK L0 RESIDENCY counter failed to read, ret -19 Similarly, there is no point to expose inject_csc_hw_error on VFs, as HW errors support is already disabled for VFs. Bspec: 53221 Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Soham Purkait <soham.purkait@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Riana Tauro <riana.tauro@intel.com> Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20250905173625.8398-1-michal.wajdeczko@intel.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.