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target/arm: Document the architectural names of our GTIMERs

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As we are about to add more physical and virtual timers let's make it
clear what each timer does.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250204125009.2281315-8-peter.maydell@linaro.org
[PMM: Add timer register name prefix to each comment]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alex Bennée 2025-03-07 10:08:21 +00:00 • committed by Peter Maydell
parent f9f99d7ca5
commit 47e2c5510f
1 changed files with 5 additions and 5 deletions
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10
target/arm/gtimer.h
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@ -10,11 +10,11 @@
#define TARGET_ARM_GTIMER_H
enum {
GTIMER_PHYS = 0,
GTIMER_VIRT = 1,
GTIMER_HYP = 2,
GTIMER_SEC = 3,
GTIMER_HYPVIRT = 4,
GTIMER_PHYS = 0, /* CNTP_* ; EL1 physical timer */
GTIMER_VIRT = 1, /* CNTV_* ; EL1 virtual timer */
GTIMER_HYP = 2, /* CNTHP_* ; EL2 physical timer */
GTIMER_SEC = 3, /* CNTPS_* ; EL3 physical timer */
GTIMER_HYPVIRT = 4, /* CNTHV_* ; EL2 virtual timer ; only if FEAT_VHE */
GTIMER_S_EL2_PHYS = 5, /* CNTHPS_* ; only if FEAT_SEL2 */
GTIMER_S_EL2_VIRT = 6, /* CNTHVS_* ; only if FEAT_SEL2 */
#define NUM_GTIMERS 7