From: "Suesens, Sebastian" <sebastian.suesens@zeiss.com>
To: "intel-gfx@lists.freedesktop.org" <intel-gfx@lists.freedesktop.org>
Subject: How to fix Linux CMA on x86 with internal graphic card i915/hda_intel ioremap error?
Date: Thu, 28 Mar 2024 06:29:46 +0000 [thread overview]
Message-ID: <AS1P190MB1822E12B130B87D1A768637AF13B2@AS1P190MB1822.EURP190.PROD.OUTLOOK.COM> (raw)
Hello,
I enabled the CMA (CONFIG_CMA=y) for an x86 machine on Linux kernel v5.10 and v5.15 When I boot the system the CMA reserved memory, but when the graphic card driver i915 or hda_intel is loaded the system crashed.
I see that ioremap on RAM at 0x0000000000000000 - 0x00000000d0000000 get fail. When I blacklist the i915 and hda_intel module the system boots fine with cma memory reserved.
I think this has something to do with the shared memory which this driver use.
Does anyone know if a kernel config or something else prevents this crash?
Please answer me in CC.
Regards Sebastian
next reply other threads:[~2024-03-31 8:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-28 6:29 Suesens, Sebastian [this message]
2024-04-17 9:08 ` How to fix Linux CMA on x86 with internal graphic card i915/hda_intel ioremap error? Jani Nikula
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