From: Mark Rutland <mark.rutland@arm.com>
To: daniel.lezcano@linaro.org
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, tglx@linutronix.de,
fu.wei@linaro.org, lorenzo.pieralisi@arm.com,
hanjun.guo@linaro.org, marc.zyngier@arm.com
Subject: [PATCH 10/16] clocksource: arm_arch_timer: add structs to describe MMIO timer
Date: Wed, 19 Apr 2017 17:44:27 +0100 [thread overview]
Message-ID: <1492620273-30037-11-git-send-email-mark.rutland@arm.com> (raw)
In-Reply-To: <1492620273-30037-1-git-send-email-mark.rutland@arm.com>
From: Fu Wei <fu.wei@linaro.org>
In preparation for ACPI GTDT support, this patch adds structs to
describe the MMIO timers indepedent of the firmware interface.
Subsequent patches will use these to split the FW/HW probing logic, so
that the HW probing logic can be shared by ACPI and DT.
Signed-off-by: Fu Wei <fu.wei@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
---
include/clocksource/arm_arch_timer.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 4a98c06..cc805b7 100644
--- a/include/clocksource/arm_arch_timer.h
+++ b/include/clocksource/arm_arch_timer.h
@@ -57,6 +57,8 @@ enum arch_timer_spi_nr {
#define ARCH_TIMER_MEM_PHYS_ACCESS 2
#define ARCH_TIMER_MEM_VIRT_ACCESS 3
+#define ARCH_TIMER_MEM_MAX_FRAMES 8
+
#define ARCH_TIMER_USR_PCT_ACCESS_EN (1 << 0) /* physical counter */
#define ARCH_TIMER_USR_VCT_ACCESS_EN (1 << 1) /* virtual counter */
#define ARCH_TIMER_VIRT_EVT_EN (1 << 2)
@@ -72,6 +74,20 @@ struct arch_timer_kvm_info {
int virtual_irq;
};
+struct arch_timer_mem_frame {
+ bool valid;
+ phys_addr_t cntbase;
+ size_t size;
+ int phys_irq;
+ int virt_irq;
+};
+
+struct arch_timer_mem {
+ phys_addr_t cntctlbase;
+ size_t size;
+ struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES];
+};
+
#ifdef CONFIG_ARM_ARCH_TIMER
extern u32 arch_timer_get_rate(void);
--
1.9.1
next prev parent reply other threads:[~2017-04-19 16:45 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-19 16:44 [GIT PULL 00/16] clocksource: arm_arch_timer: GTDT-based MMIO timer support Mark Rutland
2017-04-19 16:44 ` [PATCH 01/16] clocksource: arm_arch_timer: clean up printk usage Mark Rutland
2017-04-19 16:44 ` [PATCH 02/16] clocksource: arm_arch_timer: rename type macros Mark Rutland
2017-04-19 16:44 ` [PATCH 03/16] clocksource: arm_arch_timer: rename the PPI enum Mark Rutland
2017-04-19 16:44 ` [PATCH 04/16] clocksource: arm_arch_timer: move enums and defines to header file Mark Rutland
2017-04-19 16:44 ` [PATCH 05/16] clocksource: arm_arch_timer: add a new enum for spi type Mark Rutland
2017-04-19 16:44 ` [PATCH 06/16] clocksource: arm_arch_timer: rework PPI selection Mark Rutland
2017-04-19 16:44 ` [PATCH 07/16] clocksource: arm_arch_timer: split dt-only rate handling Mark Rutland
2017-04-19 16:44 ` [PATCH 08/16] clocksource: arm_arch_timer: refactor arch_timer_needs_probing Mark Rutland
2017-04-19 16:44 ` [PATCH 09/16] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call Mark Rutland
2017-04-19 16:44 ` Mark Rutland [this message]
2017-04-19 16:44 ` [PATCH 11/16] clocksource: arm_arch_timer: split MMIO timer probing Mark Rutland
2017-04-19 16:44 ` [PATCH 12/16] acpi/arm64: Add GTDT table parse driver Mark Rutland
2017-04-19 16:44 ` [PATCH 13/16] clocksource: arm_arch_timer: simplify ACPI support code Mark Rutland
2017-04-19 16:44 ` [PATCH 14/16] acpi/arm64: Add memory-mapped timer support in GTDT driver Mark Rutland
2017-04-19 16:44 ` [PATCH 15/16] clocksource: arm_arch_timer: add GTDT support for memory-mapped timer Mark Rutland
2017-04-19 16:44 ` [PATCH 16/16] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver Mark Rutland
2017-04-19 21:39 ` [GIT PULL 00/16] clocksource: arm_arch_timer: GTDT-based MMIO timer support Daniel Lezcano
2017-04-20 8:26 ` Mark Rutland
2017-04-20 8:35 ` Fu Wei
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1492620273-30037-11-git-send-email-mark.rutland@arm.com \
--to=mark.rutland@arm.com \
--cc=daniel.lezcano@linaro.org \
--cc=fu.wei@linaro.org \
--cc=hanjun.guo@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=marc.zyngier@arm.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).