+
+void r300_mc_program(struct radeon_device *rdev)
+{
+ struct r100_mc_save save;
+ int r;
+
+ r = r100_debugfs_mc_info_init(rdev);
+ if (r) {
+ dev_err(rdev->dev, "Failed to create r100_mc debugfs file.\n");
+ }
+
+ /* Stops all mc clients */
+ r100_mc_stop(rdev, &save);
+ if (rdev->flags & RADEON_IS_AGP) {
+ WREG32(R_00014C_MC_AGP_LOCATION,
+ S_00014C_MC_AGP_START(rdev->mc.gtt_start >> 16) |
+ S_00014C_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
+ WREG32(R_000170_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
+ WREG32(R_00015C_AGP_BASE_2,
+ upper_32_bits(rdev->mc.agp_base) & 0xff);
+ } else {
+ WREG32(R_00014C_MC_AGP_LOCATION, 0x0FFFFFFF);
+ WREG32(R_000170_AGP_BASE, 0);
+ WREG32(R_00015C_AGP_BASE_2, 0);
+ }
+ /* Wait for mc idle */
+ if (r300_mc_wait_for_idle(rdev))
+ DRM_INFO("Failed to wait MC idle before programming MC.\n");
+ /* Program MC, should be a 32bits limited address space */
+ WREG32(R_000148_MC_FB_LOCATION,
+ S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
+ S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
+ r100_mc_resume(rdev, &save);
+}