drm/amdgpu: implement new cgs interface for acpi function
Add a new driver internal interface for accessing ACPI
methods. These will be used by various new components
including powerplay.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h
index 992dcd8..8bf6ee5 100644
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -129,6 +129,39 @@
typedef unsigned long cgs_handle_t;
+#define CGS_ACPI_METHOD_ATCS 0x53435441
+#define CGS_ACPI_METHOD_ATIF 0x46495441
+#define CGS_ACPI_METHOD_ATPX 0x58505441
+#define CGS_ACPI_FIELD_METHOD_NAME 0x00000001
+#define CGS_ACPI_FIELD_INPUT_ARGUMENT_COUNT 0x00000002
+#define CGS_ACPI_MAX_BUFFER_SIZE 256
+#define CGS_ACPI_TYPE_ANY 0x00
+#define CGS_ACPI_TYPE_INTEGER 0x01
+#define CGS_ACPI_TYPE_STRING 0x02
+#define CGS_ACPI_TYPE_BUFFER 0x03
+#define CGS_ACPI_TYPE_PACKAGE 0x04
+
+struct cgs_acpi_method_argument {
+ uint32_t type;
+ uint32_t method_length;
+ uint32_t data_length;
+ union{
+ uint32_t value;
+ void *pointer;
+ };
+};
+
+struct cgs_acpi_method_info {
+ uint32_t size;
+ uint32_t field;
+ uint32_t input_count;
+ uint32_t name;
+ struct cgs_acpi_method_argument *pinput_argument;
+ uint32_t output_count;
+ struct cgs_acpi_method_argument *poutput_argument;
+ uint32_t padding[9];
+};
+
/**
* cgs_gpu_mem_info() - Return information about memory heaps
* @cgs_device: opaque device handle
@@ -493,6 +526,13 @@
enum amd_ip_block_type block_type,
enum amd_clockgating_state state);
+typedef int (*cgs_call_acpi_method)(void *cgs_device,
+ uint32_t acpi_method,
+ uint32_t acpi_function,
+ void *pinput, void *poutput,
+ uint32_t output_count,
+ uint32_t input_size,
+ uint32_t output_size);
struct cgs_ops {
/* memory management calls (similar to KFD interface) */
cgs_gpu_mem_info_t gpu_mem_info;
@@ -533,7 +573,8 @@
/* cg pg interface*/
cgs_set_powergating_state set_powergating_state;
cgs_set_clockgating_state set_clockgating_state;
- /* ACPI (TODO) */
+ /* ACPI */
+ cgs_call_acpi_method call_acpi_method;
};
struct cgs_os_ops; /* To be define in OS-specific CGS header */
@@ -620,5 +661,7 @@
CGS_CALL(set_powergating_state, dev, block_type, state)
#define cgs_set_clockgating_state(dev, block_type, state) \
CGS_CALL(set_clockgating_state, dev, block_type, state)
+#define cgs_call_acpi_method(dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size) \
+ CGS_CALL(call_acpi_method, dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size)
#endif /* _CGS_COMMON_H */