[Xen-devel] [PATCH v7 3/6] xen/arm: zynqmp: introduce zynqmp specific defines

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>

From: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>

Introduce zynqmp specific defines for the firmware calls.
See EEMI:
https://www.xilinx.com/support/documentation/user_guides/ug1200-eemi-api.pdf

The error codes are described, under XIlPM Error Codes:
https://www.xilinx.com/support/documentation/user_guides/ug1137-zynq-ultrascale-mpsoc-swdev.pdf

- pm_api_id
These are the EEMI function IDs. Unavoidable.

- pm_ret_status
These are the EEMI return statuses. Unavoidable.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefanos@xxxxxxxxxx>

---

Changes in v7:
- introduce EEMI_FID
- remove tabs

Changes in v6:
- improve commit message
- remove MM_*, node ids and reset ids

Changes in v5:
- remove MMIO access related definitions

Changes in v4:
- define PM_MMIO_SHIFT
---
 xen/include/asm-arm/platforms/xilinx-zynqmp-eemi.h | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/xen/include/asm-arm/platforms/xilinx-zynqmp-eemi.h 
b/xen/include/asm-arm/platforms/xilinx-zynqmp-eemi.h
index 43cefb5..9779b6a 100644
--- a/xen/include/asm-arm/platforms/xilinx-zynqmp-eemi.h
+++ b/xen/include/asm-arm/platforms/xilinx-zynqmp-eemi.h
@@ -15,6 +15,96 @@
 #define __ASM_ASM_PLATFORMS_ZYNQMP_H
 
 #include <asm/processor.h>
+#include <asm/smccc.h>
+
+/* Service calls.  */
+#define PM_GET_TRUSTZONE_VERSION       0xa03
+
+/* SMC function IDs for SiP Service queries */
+#define ZYNQMP_SIP_SVC_CALL_COUNT       0xff00
+#define ZYNQMP_SIP_SVC_UID              0xff01
+#define ZYNQMP_SIP_SVC_VERSION          0xff03
+
+#define EEMI_FID(fid) ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+                                         ARM_SMCCC_CONV_64,   \
+                                         ARM_SMCCC_OWNER_SIP, \
+                                         fid)
+
+enum pm_api_id {
+    /* Miscellaneous API functions: */
+    PM_GET_API_VERSION = 1, /* Do not change or move */
+    PM_SET_CONFIGURATION,
+    PM_GET_NODE_STATUS,
+    PM_GET_OP_CHARACTERISTIC,
+    PM_REGISTER_NOTIFIER,
+    /* API for suspending of PUs: */
+    PM_REQ_SUSPEND,
+    PM_SELF_SUSPEND,
+    PM_FORCE_POWERDOWN,
+    PM_ABORT_SUSPEND,
+    PM_REQ_WAKEUP,
+    PM_SET_WAKEUP_SOURCE,
+    PM_SYSTEM_SHUTDOWN,
+    /* API for managing PM slaves: */
+    PM_REQ_NODE,
+    PM_RELEASE_NODE,
+    PM_SET_REQUIREMENT,
+    PM_SET_MAX_LATENCY,
+    /* Direct control API functions: */
+    PM_RESET_ASSERT,
+    PM_RESET_GET_STATUS,
+    PM_MMIO_WRITE,
+    PM_MMIO_READ,
+    PM_INIT,
+    PM_FPGA_LOAD,
+    PM_FPGA_GET_STATUS,
+    PM_GET_CHIPID,
+    /* ID 25 is been used by U-boot to process secure boot images */
+    /* Secure library generic API functions */
+    PM_SECURE_SHA = 26,
+    PM_SECURE_RSA,
+    /* Pin control API functions */
+    PM_PINCTRL_REQUEST,
+    PM_PINCTRL_RELEASE,
+    PM_PINCTRL_GET_FUNCTION,
+    PM_PINCTRL_SET_FUNCTION,
+    PM_PINCTRL_CONFIG_PARAM_GET,
+    PM_PINCTRL_CONFIG_PARAM_SET,
+    /* PM IOCTL API */
+    PM_IOCTL,
+    /* API to query information from firmware */
+    PM_QUERY_DATA,
+    /* Clock control API functions */
+    PM_CLOCK_ENABLE,
+    PM_CLOCK_DISABLE,
+    PM_CLOCK_GETSTATE,
+    PM_CLOCK_SETDIVIDER,
+    PM_CLOCK_GETDIVIDER,
+    PM_CLOCK_SETRATE,
+    PM_CLOCK_GETRATE,
+    PM_CLOCK_SETPARENT,
+    PM_CLOCK_GETPARENT,
+    PM_API_MAX
+};
+
+/**
+ * @XST_PM_SUCCESS:            Success
+ * @XST_PM_INTERNAL:   Unexpected error
+ * @XST_PM_CONFLICT:   Conflicting requirements
+ * @XST_PM_NO_ACCESS:  Access rights violation
+ * @XST_PM_INVALID_NODE:       Does not apply to node passed as argument
+ * @XST_PM_DOUBLE_REQ: Duplicate request
+ * @XST_PM_ABORT_SUSPEND:      Target has aborted suspend
+ */
+enum pm_ret_status {
+    XST_PM_SUCCESS = 0,
+    XST_PM_INTERNAL = 2000,
+    XST_PM_CONFLICT,
+    XST_PM_NO_ACCESS,
+    XST_PM_INVALID_NODE,
+    XST_PM_DOUBLE_REQ,
+    XST_PM_ABORT_SUSPEND,
+};
 
 extern bool zynqmp_eemi(struct cpu_user_regs *regs);
 
-- 
1.9.1


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