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drm/i915/gvt: fix high-order allocation failure on late load

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If the module happens to be loaded later at runtime there is a chance
memory is already fragmented enough to fail allocation of firmware
blob storage and consequently GVT init. Since it doesn't seem to be
necessary to have the blob contiguous, use vmalloc() instead to avoid
the issue.

Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1579723824-25711-1-git-send-email-igor.druzhinin@citrix.com
This commit is contained in:
Igor Druzhinin 2020-01-22 20:10:24 +00:00 committed by Zhenyu Wang
parent 5e822e44ce
commit c216f12bed
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/gvt/firmware.c
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@ -146,7 +146,7 @@ void intel_gvt_free_firmware(struct intel_gvt *gvt)
clean_firmware_sysfs(gvt);
kfree(gvt->firmware.cfg_space);
kfree(gvt->firmware.mmio);
vfree(gvt->firmware.mmio);
}
static int verify_firmware(struct intel_gvt *gvt,
@ -229,7 +229,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt)
firmware->cfg_space = mem;
mem = kmalloc(info->mmio_size, GFP_KERNEL);
mem = vmalloc(info->mmio_size);
if (!mem) {
kfree(path);
kfree(firmware->cfg_space);