diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2010-11-17 12:11:03 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-11-18 14:56:59 +1000 |
| commit | 1aa52bd3bc839064d5a3e4de406850f4a3aa5378 (patch) | |
| tree | 5acdc55a07a0309d00329619cb32562f9ea833ed | |
| parent | 268b2510de14f62134d87ba9b4981816192db386 (diff) | |
| download | linux-1aa52bd3bc839064d5a3e4de406850f4a3aa5378.tar.bz2 | |
drm/radeon/kms: fix tiling info on evergreen
We aren't currently using tiling in userspace on evergreen,
but the info we currently return for the tiling info query
(gb_addr_config) is no adequate for userspace tiling alignment
calculations. It does not contain the bank info. Create a custom
tiling info dword with all the necessary info (num channels,
num banks, group size, row size).
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 488c36c8f5e6..4dc5b4714c5a 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1650,7 +1650,36 @@ static void evergreen_gpu_init(struct radeon_device *rdev) } } - rdev->config.evergreen.tile_config = gb_addr_config; + /* setup tiling info dword. gb_addr_config is not adequate since it does + * not have bank info, so create a custom tiling dword. + * bits 3:0 num_pipes + * bits 7:4 num_banks + * bits 11:8 group_size + * bits 15:12 row_size + */ + rdev->config.evergreen.tile_config = 0; + switch (rdev->config.evergreen.max_tile_pipes) { + case 1: + default: + rdev->config.evergreen.tile_config |= (0 << 0); + break; + case 2: + rdev->config.evergreen.tile_config |= (1 << 0); + break; + case 4: + rdev->config.evergreen.tile_config |= (2 << 0); + break; + case 8: + rdev->config.evergreen.tile_config |= (3 << 0); + break; + } + rdev->config.evergreen.tile_config |= + ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4; + rdev->config.evergreen.tile_config |= + ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) << 8; + rdev->config.evergreen.tile_config |= + ((gb_addr_config & 0x30000000) >> 28) << 12; + WREG32(GB_BACKEND_MAP, gb_backend_map); WREG32(GB_ADDR_CONFIG, gb_addr_config); WREG32(DMIF_ADDR_CONFIG, gb_addr_config); |