On 1/28/21 5:09 PM, Mike Leach wrote:
Creates an system management API to allow complex configurations and
features to be programmed into a CoreSight infrastructure.
A feature is defined as a programming set for a device or class of
devices.
A configuration is a set of features across the system that are enabled
for a trace session.
The API will manage system wide configuration, and allow complex
programmed features to be added to individual device instances, and
provide for system wide configuration selection on trace capture
operations.
This patch creates the initial data object and the initial API for
loading configurations and features.
Signed-off-by: Mike Leach <mike.le...@linaro.org>
+/**
+ * Representation of register value.
+ *
+ * Supports full 64 bit register value, or 32 bit value with optional mask
+ * value.
+ *
+ * @type: define register usage and interpretation.
+ * @offset: the address offset for register in the hardware device (per
device specification).
+ * @hw_info: optional hardware device type specific information. (ETM / CTI
specific etc)
+ * @val64: 64 bit value.
+ * @val32: 32 bit value.
+ * @mask32: 32 bit mask when using 32 bit value to access device register.
+ */
+struct cscfg_regval_desc {
+ struct {
+ u32 type:8;
+ u32 offset:12;
+ u32 hw_info:12;
+ };
+ union {
+ u64 val64;
+ struct {
+ u32 val32;
Since this is also overloaded with param_idx for VAL_PARAM type, please
make this explicit by doing something like this, to avoid having
to explain things in the code, undocumented here.
union {
u32 val32;
u32 param_idx;
};
Cheers
Suzuki
