3.5.7.9 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Alex Deucher <alexander.deuc...@amd.com> commit 8f612b23a17dce86fef75407e698de6243cc99a1 upstream. Need to adjust the backend map depending on which RB is enabled. This is the trinity equivalent of: f7eb97300832f4fe5fe916c5d84cd2e25169330e May fix: https://bugs.freedesktop.org/show_bug.cgi?id=57919 Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> [ luis: adjust context ] Signed-off-by: Luis Henriques <luis.henriq...@canonical.com> --- drivers/gpu/drm/radeon/ni.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 6a0664d..c3abd25 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -612,11 +612,22 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(DMIF_ADDR_CONFIG, gb_addr_config); WREG32(HDP_ADDR_CONFIG, gb_addr_config); - tmp = gb_addr_config & NUM_PIPES_MASK; - tmp = r6xx_remap_render_backend(rdev, tmp, - rdev->config.cayman.max_backends_per_se * - rdev->config.cayman.max_shader_engines, - CAYMAN_MAX_BACKENDS, disabled_rb_mask); + if ((rdev->config.cayman.max_backends_per_se == 1) && + (rdev->flags & RADEON_IS_IGP)) { + if ((disabled_rb_mask & 3) == 1) { + /* RB0 disabled, RB1 enabled */ + tmp = 0x11111111; + } else { + /* RB1 disabled, RB0 enabled */ + tmp = 0x00000000; + } + } else { + tmp = gb_addr_config & NUM_PIPES_MASK; + tmp = r6xx_remap_render_backend(rdev, tmp, + rdev->config.cayman.max_backends_per_se * + rdev->config.cayman.max_shader_engines, + CAYMAN_MAX_BACKENDS, disabled_rb_mask); + } WREG32(GB_BACKEND_MAP, tmp); cgts_tcc_disable = 0xffff0000; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
