The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714174832.4061752-1-robh@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Add ddr performance monitor support for i.MX93.
There are 11 counters for ddr performance events.
- Counter 0 is a 64-bit counter that counts only clock cycles.
- Counter 1-10 are 32-bit counters that can monitor counter-specific
events in addition to counting reference events.
For example:
perf stat -a -e imx9_ddr0/ddrc_pm_1,counter=1/,imx9_ddr0/ddrc_pm_2,counter=2/ ls
Besides, this ddr pmu support AXI filter capability. It's implemented as
counter-specific events. It now supports read transaction, write transaction
and read beat events which corresponding respecitively to counter 2, 3 and 4.
axi_mask and axi_id need to be as event parameters.
For example:
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_trans_filt,counter=2,axi_mask=ID_MASK,axi_id=ID/
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_wr_trans_filt,counter=3,axi_mask=ID_MASK,axi_id=ID/
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_beat_filt,counter=4,axi_mask=ID_MASK,axi_id=ID/
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230418102910.2065651-1-xu.yang_2@nxp.com
[will: Remove redundant error message on platform_get_irq() failure]
Signed-off-by: Will Deacon <will@kernel.org>
