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drm/radeon/kms: add support to atom parser for FB read/write

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FB read/write really doesn't need to access the actual VRAM, we
can just use a scratch area. This is required for using atom displayport
calls later.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2009-11-17 06:29:46 +10:00
parent f846761853
commit d904ef9b00
3 changed files with 8 additions and 4 deletions
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2
drivers/gpu/drm/radeon/radeon_device.c
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@ -481,11 +481,13 @@ int radeon_atombios_init(struct radeon_device *rdev)
rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
atom_allocate_fb_scratch(rdev->mode_info.atom_context);
return 0;
}
void radeon_atombios_fini(struct radeon_device *rdev)
{
kfree(rdev->mode_info.atom_context->scratch);
kfree(rdev->mode_info.atom_context);
kfree(rdev->mode_info.atom_card_info);
}