Commit e57415d8 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie

drm/radeon/kms: fix agp mode setup on cards that use pcie bridges

Asics that use an AGP to PCIE bridge don't have the AGP_STATUS
register so just use whatever mode the host side setup.
Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <glisse@freedesktop.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 09f0c489
......@@ -156,7 +156,13 @@ int radeon_agp_init(struct radeon_device *rdev)
}
mode.mode = info.mode;
/* chips with the agp to pcie bridge don't have the AGP_STATUS register
* Just use the whatever mode the host sets up.
*/
if (rdev->family <= CHIP_RV350)
agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
else
agp_status = mode.mode;
is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
if (is_v3) {
......
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