diff options
| author | Roman Li <Roman.Li@amd.com> | 2017-12-15 17:18:19 -0500 |
|---|---|---|
| committer | Harry Wentland <harry.wentland@amd.com> | 2018-03-06 21:47:16 -0500 |
| commit | 6acd1c2f51039524430b045ef2a20b13ee362f26 (patch) | |
| tree | 102ba35ca35e851e8c0b37a13228dabf413d8a1c | |
| parent | d1879b7c1acb14154ffe79096782e5eb7a16d50e (diff) | |
drm/amd/display: Fix FBC topology change
With FBC enabled there was a potential null-deref
on topology change due to hardcorded pipe index.
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 86cdd7b4811f..9353872b4eca 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1690,9 +1690,13 @@ static void apply_min_clocks( * Check if FBC can be enabled */ static bool should_enable_fbc(struct dc *dc, - struct dc_state *context) + struct dc_state *context, + uint32_t *pipe_idx) { - struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[0]; + uint32_t i; + struct pipe_ctx *pipe_ctx = NULL; + struct resource_context *res_ctx = &context->res_ctx; + ASSERT(dc->fbc_compressor); @@ -1704,6 +1708,14 @@ static bool should_enable_fbc(struct dc *dc, if (context->stream_count != 1) return false; + for (i = 0; i < dc->res_pool->pipe_count; i++) { + if (res_ctx->pipe_ctx[i].stream) { + pipe_ctx = &res_ctx->pipe_ctx[i]; + *pipe_idx = i; + break; + } + } + /* Only supports eDP */ if (pipe_ctx->stream->sink->link->connector_signal != SIGNAL_TYPE_EDP) return false; @@ -1729,11 +1741,14 @@ static bool should_enable_fbc(struct dc *dc, static void enable_fbc(struct dc *dc, struct dc_state *context) { - if (should_enable_fbc(dc, context)) { + uint32_t pipe_idx = 0; + + if (should_enable_fbc(dc, context, &pipe_idx)) { /* Program GRPH COMPRESSED ADDRESS and PITCH */ struct compr_addr_and_pitch_params params = {0, 0, 0}; struct compressor *compr = dc->fbc_compressor; - struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[0]; + struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[pipe_idx]; + params.source_view_width = pipe_ctx->stream->timing.h_addressable; params.source_view_height = pipe_ctx->stream->timing.v_addressable; |