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drm/radeon/kms: prevent parallel AtomBIOS calls

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This just adds a mutex around the atombios table execution
so we don't call it from two contexts at once.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Rafał Miłecki 2009-12-17 00:00:46 +01:00 • committed by Dave Airlie
parent d79766fab9
commit c31ad97f18
3 changed files with 12 additions and 2 deletions
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drivers/gpu/drm/radeon/radeon_device.c
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@ -481,6 +481,7 @@ int radeon_atombios_init(struct radeon_device *rdev)
atom_card_info->pll_write = cail_pll_write;
rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
mutex_init(&rdev->mode_info.atom_context->mutex);
radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
atom_allocate_fb_scratch(rdev->mode_info.atom_context);
return 0;