drm/radeon: fix UVD on big endian

This fixes the kernel side so that the ring should come
up and ring and IB tests should work.  The userspace
UVD drivers will also need big endian fixes.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 0e5341695922b504298b103df17c936e95a34d0a..6948eb88c2b7848cad2ff436e0df835bdd8d7999 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2687,6 +2687,9 @@ void r600_uvd_rbc_stop(struct radeon_device *rdev)
 int r600_uvd_init(struct radeon_device *rdev)
 {
        int i, j, r;
+       /* disable byte swapping */
+       u32 lmi_swap_cntl = 0;
+       u32 mp_swap_cntl = 0;
 
        /* raise clocks while booting up the VCPU */
        radeon_set_uvd_clocks(rdev, 53300, 40000);
@@ -2711,9 +2714,13 @@ int r600_uvd_init(struct radeon_device *rdev)
        WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
                             (1 << 21) | (1 << 9) | (1 << 20));
 
-       /* disable byte swapping */
-       WREG32(UVD_LMI_SWAP_CNTL, 0);
-       WREG32(UVD_MP_SWAP_CNTL, 0);
+#ifdef __BIG_ENDIAN
+       /* swap (8 in 32) RB and IB */
+       lmi_swap_cntl = 0xa;
+       mp_swap_cntl = 0;
+#endif
+       WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
+       WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
 
        WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
        WREG32(UVD_MPC_SET_MUXA1, 0x0);

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 9f55adefa8e05084ff7888d9accff1ad3741bf5c..cad735dd02c6f95260a92b268a446d1fbebe3be5 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -627,19 +627,19 @@ int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
        }
 
        /* stitch together an UVD create msg */
-       msg[0] = 0x00000de4;
-       msg[1] = 0x00000000;
-       msg[2] = handle;
-       msg[3] = 0x00000000;
-       msg[4] = 0x00000000;
-       msg[5] = 0x00000000;
-       msg[6] = 0x00000000;
-       msg[7] = 0x00000780;
-       msg[8] = 0x00000440;
-       msg[9] = 0x00000000;
-       msg[10] = 0x01b37000;
+       msg[0] = cpu_to_le32(0x00000de4);
+       msg[1] = cpu_to_le32(0x00000000);
+       msg[2] = cpu_to_le32(handle);
+       msg[3] = cpu_to_le32(0x00000000);
+       msg[4] = cpu_to_le32(0x00000000);
+       msg[5] = cpu_to_le32(0x00000000);
+       msg[6] = cpu_to_le32(0x00000000);
+       msg[7] = cpu_to_le32(0x00000780);
+       msg[8] = cpu_to_le32(0x00000440);
+       msg[9] = cpu_to_le32(0x00000000);
+       msg[10] = cpu_to_le32(0x01b37000);
        for (i = 11; i < 1024; ++i)
-               msg[i] = 0x0;
+               msg[i] = cpu_to_le32(0x0);
 
        radeon_bo_kunmap(bo);
        radeon_bo_unreserve(bo);
@@ -673,12 +673,12 @@ int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
        }
 
        /* stitch together an UVD destroy msg */
-       msg[0] = 0x00000de4;
-       msg[1] = 0x00000002;
-       msg[2] = handle;
-       msg[3] = 0x00000000;
+       msg[0] = cpu_to_le32(0x00000de4);
+       msg[1] = cpu_to_le32(0x00000002);
+       msg[2] = cpu_to_le32(handle);
+       msg[3] = cpu_to_le32(0x00000000);
        for (i = 4; i < 1024; ++i)
-               msg[i] = 0x0;
+               msg[i] = cpu_to_le32(0x0);
 
        radeon_bo_kunmap(bo);
        radeon_bo_unreserve(bo);