Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[sfrench/cifs-2.6.git] / drivers / gpu / drm / radeon / r600.c
index 1b6d0001b20e86fad42fa10bd2b6483200088397..a1198d99cdf97ac7f99ea26f6a73a583e3859eb0 100644 (file)
@@ -1654,6 +1654,12 @@ void r600_ring_init(struct radeon_device *rdev, unsigned ring_size)
        rdev->cp.align_mask = 16 - 1;
 }
 
+void r600_cp_fini(struct radeon_device *rdev)
+{
+       r600_cp_stop(rdev);
+       radeon_ring_fini(rdev);
+}
+
 
 /*
  * GPU scratch registers helpers function.
@@ -1861,6 +1867,12 @@ int r600_startup(struct radeon_device *rdev)
                        return r;
        }
        r600_gpu_init(rdev);
+       r = r600_blit_init(rdev);
+       if (r) {
+               r600_blit_fini(rdev);
+               rdev->asic->copy = NULL;
+               dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
+       }
        /* pin copy shader into vram */
        if (rdev->r600_blit.shader_obj) {
                r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
@@ -2045,19 +2057,15 @@ int r600_init(struct radeon_device *rdev)
        r = r600_pcie_gart_init(rdev);
        if (r)
                return r;
-       r = r600_blit_init(rdev);
-       if (r) {
-               r600_blit_fini(rdev);
-               rdev->asic->copy = NULL;
-               dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
-       }
 
        rdev->accel_working = true;
        r = r600_startup(rdev);
        if (r) {
-               r600_suspend(rdev);
+               dev_err(rdev->dev, "disabling GPU acceleration\n");
+               r600_cp_fini(rdev);
                r600_wb_fini(rdev);
-               radeon_ring_fini(rdev);
+               r600_irq_fini(rdev);
+               radeon_irq_kms_fini(rdev);
                r600_pcie_gart_fini(rdev);
                rdev->accel_working = false;
        }
@@ -2083,20 +2091,17 @@ int r600_init(struct radeon_device *rdev)
 
 void r600_fini(struct radeon_device *rdev)
 {
-       /* Suspend operations */
-       r600_suspend(rdev);
-
        r600_audio_fini(rdev);
        r600_blit_fini(rdev);
+       r600_cp_fini(rdev);
+       r600_wb_fini(rdev);
        r600_irq_fini(rdev);
        radeon_irq_kms_fini(rdev);
-       radeon_ring_fini(rdev);
-       r600_wb_fini(rdev);
        r600_pcie_gart_fini(rdev);
+       radeon_agp_fini(rdev);
        radeon_gem_fini(rdev);
        radeon_fence_driver_fini(rdev);
        radeon_clocks_fini(rdev);
-       radeon_agp_fini(rdev);
        radeon_bo_fini(rdev);
        radeon_atombios_fini(rdev);
        kfree(rdev->bios);
@@ -2900,3 +2905,18 @@ int r600_debugfs_mc_info_init(struct radeon_device *rdev)
        return 0;
 #endif
 }
+
+/**
+ * r600_ioctl_wait_idle - flush host path cache on wait idle ioctl
+ * rdev: radeon device structure
+ * bo: buffer object struct which userspace is waiting for idle
+ *
+ * Some R6XX/R7XX doesn't seems to take into account HDP flush performed
+ * through ring buffer, this leads to corruption in rendering, see
+ * http://bugzilla.kernel.org/show_bug.cgi?id=15186 to avoid this we
+ * directly perform HDP flush by writing register through MMIO.
+ */
+void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo)
+{
+       WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+}