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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#ifndef EXOSPHERE_FLOW_CTLR_H
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#define EXOSPHERE_FLOW_CTLR_H
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#include <stdint.h>
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#include "cpu_context.h"
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#include "memory_map.h"
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/* Exosphere register definitions for the Tegra X1 Flow Controller. */
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static inline uintptr_t get_flow_base(void) {
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return MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_FLOWCTRL);
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}
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#define FLOW_BASE (get_flow_base())
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#define MAKE_FLOW_REG(ofs) (*((volatile uint32_t *)(FLOW_BASE + ofs)))
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#define FLOW_CTLR_HALT_COP_EVENTS_0 MAKE_FLOW_REG(0x004)
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#define FLOW_CTLR_L2FLUSH_CONTROL_0 MAKE_FLOW_REG(0x094)
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static const struct {
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unsigned int CPUN_CSR_OFS;
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unsigned int HALT_CPUN_EVENTS_OFS;
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unsigned int CC4_COREN_CTRL_OFS;
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} g_flow_core_offsets[NUM_CPU_CORES] = {
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{0x008, 0x000, 0x06C},
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{0x018, 0x014, 0x070},
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{0x020, 0x01C, 0x074},
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{0x028, 0x024, 0x078},
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};
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static inline void flow_set_cc4_ctrl(uint32_t core, uint32_t cc4_ctrl) {
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MAKE_FLOW_REG(g_flow_core_offsets[core].CC4_COREN_CTRL_OFS) = cc4_ctrl;
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}
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static inline void flow_set_halt_events(uint32_t core, uint32_t halt_events) {
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MAKE_FLOW_REG(g_flow_core_offsets[core].HALT_CPUN_EVENTS_OFS) = halt_events;
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}
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static inline void flow_set_csr(uint32_t core, uint32_t csr) {
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MAKE_FLOW_REG(g_flow_core_offsets[core].CPUN_CSR_OFS) = csr;
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}
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static inline void flow_clear_csr0_and_events(uint32_t core) {
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MAKE_FLOW_REG(g_flow_core_offsets[core].CPUN_CSR_OFS) = 0;
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MAKE_FLOW_REG(g_flow_core_offsets[core].HALT_CPUN_EVENTS_OFS) = 0;
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}
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#endif
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