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Sultan Alsawaf 73c8c29baa drm/amd/amdgpu: Ensure isp_kernel_buffer_alloc() creates a new BO
When the BO pointer provided to amdgpu_bo_create_kernel() points to
non-NULL, amdgpu_bo_create_kernel() takes it as a hint to pin that address
rather than allocate a new BO.

This functionality is never desired for allocating ISP buffers. A new BO
should always be created when isp_kernel_buffer_alloc() is called, per the
description for isp_kernel_buffer_alloc().

Ensure this by zeroing *bo right before the amdgpu_bo_create_kernel() call.

Fixes: 55d42f6169 ("drm/amd/amdgpu: Add helper functions for isp buffers")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
History 2025-11-11 21:54:16 -05:00
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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.