734bd6cc41
The generic timer support libraries call the actual system register accessor function via a single pair of functions ArmArchTimerReadReg() and ArmArchTimerWriteReg(), which take an enum argument to identify the register, and return output values by pointer reference. Since these functions are never called with a non-immediate argument, we can simply replace each invocation with the underlying system register accessor instead. This is mostly functionally equivalent, with the exception of the bounds check for the enum (which is pointless given the fact that we never pass a variable), the check for the presence of the architected timer (which only makes sense for ARMv7, but is highly unlikely to vary between platforms that are similar enough to run the same firmware image), and a check for enum values that refer to the HYP view of the timer, which we never referred to anywhere in the code in the first place. So get rid of the middle man, and update the ArmGenericTimerPhyCounterLib and ArmGenericTimerVirtCounterLib implementations to call the system register accessors directly. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2011-2015, ARM Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __ARM_V7_H__
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#define __ARM_V7_H__
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#include <Chipset/ArmV7Mmu.h>
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// ARM Interrupt ID in Exception Table
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#define ARM_ARCH_EXCEPTION_IRQ EXCEPT_ARM_IRQ
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// ID_PFR1 - ARM Processor Feature Register 1 definitions
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#define ARM_PFR1_SEC (0xFUL << 4)
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#define ARM_PFR1_TIMER (0xFUL << 16)
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#define ARM_PFR1_GIC (0xFUL << 28)
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// Domain Access Control Register
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#define DOMAIN_ACCESS_CONTROL_MASK(a) (3UL << (2 * (a)))
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#define DOMAIN_ACCESS_CONTROL_NONE(a) (0UL << (2 * (a)))
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#define DOMAIN_ACCESS_CONTROL_CLIENT(a) (1UL << (2 * (a)))
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#define DOMAIN_ACCESS_CONTROL_RESERVED(a) (2UL << (2 * (a)))
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#define DOMAIN_ACCESS_CONTROL_MANAGER(a) (3UL << (2 * (a)))
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// CPSR - Coprocessor Status Register definitions
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#define CPSR_MODE_USER 0x10
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#define CPSR_MODE_FIQ 0x11
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#define CPSR_MODE_IRQ 0x12
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#define CPSR_MODE_SVC 0x13
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#define CPSR_MODE_ABORT 0x17
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#define CPSR_MODE_HYP 0x1A
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#define CPSR_MODE_UNDEFINED 0x1B
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#define CPSR_MODE_SYSTEM 0x1F
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#define CPSR_MODE_MASK 0x1F
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#define CPSR_ASYNC_ABORT (1 << 8)
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#define CPSR_IRQ (1 << 7)
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#define CPSR_FIQ (1 << 6)
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// CPACR - Coprocessor Access Control Register definitions
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#define CPACR_CP_DENIED(cp) 0x00
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#define CPACR_CP_PRIV(cp) ((0x1 << ((cp) << 1)) & 0x0FFFFFFF)
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#define CPACR_CP_FULL(cp) ((0x3 << ((cp) << 1)) & 0x0FFFFFFF)
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#define CPACR_ASEDIS (1 << 31)
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#define CPACR_D32DIS (1 << 30)
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#define CPACR_CP_FULL_ACCESS 0x0FFFFFFF
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// NSACR - Non-Secure Access Control Register definitions
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#define NSACR_CP(cp) ((1 << (cp)) & 0x3FFF)
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#define NSACR_NSD32DIS (1 << 14)
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#define NSACR_NSASEDIS (1 << 15)
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#define NSACR_PLE (1 << 16)
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#define NSACR_TL (1 << 17)
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#define NSACR_NS_SMP (1 << 18)
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#define NSACR_RFR (1 << 19)
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// SCR - Secure Configuration Register definitions
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#define SCR_NS (1 << 0)
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#define SCR_IRQ (1 << 1)
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#define SCR_FIQ (1 << 2)
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#define SCR_EA (1 << 3)
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#define SCR_FW (1 << 4)
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#define SCR_AW (1 << 5)
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// MIDR - Main ID Register definitions
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#define ARM_CPU_TYPE_SHIFT 4
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#define ARM_CPU_TYPE_MASK 0xFFF
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#define ARM_CPU_TYPE_AEMv8 0xD0F
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#define ARM_CPU_TYPE_A53 0xD03
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#define ARM_CPU_TYPE_A57 0xD07
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#define ARM_CPU_TYPE_A15 0xC0F
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#define ARM_CPU_TYPE_A12 0xC0D
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#define ARM_CPU_TYPE_A9 0xC09
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#define ARM_CPU_TYPE_A7 0xC07
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#define ARM_CPU_TYPE_A5 0xC05
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#define ARM_CPU_REV_MASK ((0xF << 20) | (0xF) )
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#define ARM_CPU_REV(rn, pn) ((((rn) & 0xF) << 20) | ((pn) & 0xF))
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#define ARM_VECTOR_TABLE_ALIGNMENT ((1 << 5)-1)
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VOID
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EFIAPI
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ArmEnableSWPInstruction (
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VOID
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);
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UINTN
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EFIAPI
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ArmReadCbar (
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VOID
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);
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UINTN
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EFIAPI
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ArmReadTpidrurw (
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VOID
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);
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VOID
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EFIAPI
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ArmWriteTpidrurw (
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UINTN Value
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);
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UINT32
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EFIAPI
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ArmReadNsacr (
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VOID
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);
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VOID
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EFIAPI
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ArmWriteNsacr (
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IN UINT32 Nsacr
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);
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#endif // __ARM_V7_H__
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