Adds to support register dump on lpu and dou of pipeline and gcu on D71
Changes since v1:
- For a constant format without additional arguments, use seq_puts()
instead of seq_printf().
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190917112525.25490-1-lowry.li@arm.com
For downscaling there is a restriction, the downscaling needed engine
clock can not acceed the real engine clock, and the clock requirement
mostly depend on the specific HW, to solve this problem:
1. Add a pipeline func - downscaling_clk_check for CORE to query the real
HW if downscaling can be supported.
2. Add new property clock ratio which is the ratio of:
(mclk << 32) / pxlclk
then User driver can use this ratio to do the clock check to avoid post
an invalid downscaling to kernel.
v2: Rebase and Delete debug print
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
D71 consists of a number of Register Blocks, every Block controls a
specific HW function, every block has a common block_header to represent
its type and pipeline information.
GCU (Global Control Unit) is the first Block which describe the global
information of D71 HW, Like number of block contained and the number of
pipeline supported.
So the d71_enum_resources parsed GCU and create pipeline according
the GCU configuration, and then iterate and detect the blocks that
indicated by the GCU and block_header.
And this change also added two struct d71_dev/d71_pipeline to extend
komeda_dev/komeda_pipeline to add some d71 only members.
v2:
- Return the specific errno not -1.
- Use DRM_DEBUG as default debug msg printer.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
