From: Julien Grall <julien.grall@arm.com>
To: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Cc: james.morse@arm.com, marc.zyngier@arm.com,
julien.thierry@arm.com, suzuki.poulose@arm.com,
catalin.marinas@arm.com, will.deacon@arm.com,
Julien Grall <julien.grall@arm.com>
Subject: [PATCH v3 12/15] arm64/lib: Add an helper to free memory allocated by the ASID allocator
Date: Wed, 24 Jul 2019 17:25:31 +0100 [thread overview]
Message-ID: <20190724162534.7390-13-julien.grall@arm.com> (raw)
In-Reply-To: <20190724162534.7390-1-julien.grall@arm.com>
Some users of the ASID allocator (e.g VMID) may require to free any
resource if the initialization fail. So introduce a function allows to
free any memory allocated by the ASID allocator.
Signed-off-by: Julien Grall <julien.grall@arm.com>
---
Changes in v3:
- Patch added
---
arch/arm64/include/asm/lib_asid.h | 2 ++
arch/arm64/lib/asid.c | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/arch/arm64/include/asm/lib_asid.h b/arch/arm64/include/asm/lib_asid.h
index c18e9eca500e..ff78865a6823 100644
--- a/arch/arm64/include/asm/lib_asid.h
+++ b/arch/arm64/include/asm/lib_asid.h
@@ -74,4 +74,6 @@ int asid_allocator_init(struct asid_info *info,
u32 bits, unsigned int asid_per_ctxt,
void (*flush_cpu_ctxt_cb)(void));
+void asid_allocator_free(struct asid_info *info);
+
#endif
diff --git a/arch/arm64/lib/asid.c b/arch/arm64/lib/asid.c
index 0b3a99c4aed4..d23f0df656c1 100644
--- a/arch/arm64/lib/asid.c
+++ b/arch/arm64/lib/asid.c
@@ -183,3 +183,8 @@ int asid_allocator_init(struct asid_info *info,
return 0;
}
+
+void asid_allocator_free(struct asid_info *info)
+{
+ kfree(info->map);
+}
--
2.11.0
next prev parent reply other threads:[~2019-07-24 16:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-24 16:25 [PATCH v3 00/15] kvm/arm: Align the VMID allocation with the arm64 ASID one Julien Grall
2019-07-24 16:25 ` [PATCH v3 01/15] arm64/mm: Introduce asid_info structure and move asid_generation/asid_map to it Julien Grall
2019-07-24 16:25 ` [PATCH v3 02/15] arm64/mm: Move active_asids and reserved_asids to asid_info Julien Grall
2019-07-24 16:25 ` [PATCH v3 03/15] arm64/mm: Move bits " Julien Grall
2019-07-24 16:25 ` [PATCH v3 04/15] arm64/mm: Move the variable lock and tlb_flush_pending " Julien Grall
2019-07-24 16:25 ` [PATCH v3 05/15] arm64/mm: Remove dependency on MM in new_context Julien Grall
2019-07-24 16:25 ` [PATCH v3 06/15] arm64/mm: Store the number of asid allocated per context Julien Grall
2019-07-24 16:25 ` [PATCH v3 07/15] arm64/mm: Introduce NUM_ASIDS Julien Grall
2019-07-24 16:25 ` [PATCH v3 08/15] arm64/mm: Split asid_inits in 2 parts Julien Grall
2019-07-24 16:25 ` [PATCH v3 09/15] arm64/mm: Split the function check_and_switch_context in 3 parts Julien Grall
2019-07-25 16:28 ` Catalin Marinas
2019-07-24 16:25 ` [PATCH v3 10/15] arm64/mm: Introduce a callback to flush the local context Julien Grall
2019-07-24 16:25 ` [PATCH v3 11/15] arm64: Move the ASID allocator code in a separate file Julien Grall
2019-07-24 16:25 ` Julien Grall [this message]
2019-07-24 16:25 ` [PATCH v3 13/15] arm/kvm: Introduce a new VMID allocator Julien Grall
2019-07-24 16:25 ` [PATCH v3 14/15] arch/arm64: Introduce a capability to tell whether 16-bit VMID is available Julien Grall
2019-07-24 16:25 ` [PATCH v3 15/15] kvm/arm: Align the VMID allocation with the arm64 ASID one Julien Grall
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