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Message-Id: <20180131182807.32134-14-suzuki.poulose@arm.com>
Date: Wed, 31 Jan 2018 18:28:00 +0000
From: Suzuki K Poulose <suzuki.poulose@....com>
To: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org, ard.biesheuvel@...aro.org,
will.deacon@....com, mark.rutland@....com, marc.zyngier@....com,
catalin.marinas@....com, ckadabi@...eaurora.org,
dave.martin@....com, jnair@...iumnetworks.com,
Suzuki K Poulose <suzuki.poulose@....com>
Subject: [PATCH v2 13/20] arm64: capabilities: Clean up midr range helpers
We are about to introduce generic MIDR range helpers. Clean
up the existing helpers in erratum handling, preparing them
to use generic version.
Cc: Dave Martin <dave.martin@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: Mark Rutland <mark.rutland@....com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
---
arch/arm64/kernel/cpu_errata.c | 100 +++++++++++++++++++++++------------------
1 file changed, 56 insertions(+), 44 deletions(-)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 22ec3960a0c5..4351d48b0b0f 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -174,20 +174,35 @@ static void qcom_enable_link_stack_sanitization(
}
#endif /* CONFIG_HARDEN_BRANCH_PREDICTOR */
-#define MIDR_RANGE(model, min, max) \
- .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
- .matches = is_affected_midr_range, \
- .midr_model = model, \
- .midr_range_min = min, \
- .midr_range_max = max
+#define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
+ .matches = is_affected_midr_range, \
+ .midr_model = model, \
+ .midr_range_min = MIDR_CPU_VAR_REV(v_min, r_min), \
+ .midr_range_max = MIDR_CPU_VAR_REV(v_max, r_max)
-#define MIDR_ALL_VERSIONS(model) \
- .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
- .matches = is_affected_midr_range, \
- .midr_model = model, \
- .midr_range_min = 0, \
+#define CAP_MIDR_ALL_VERSIONS(model) \
+ .matches = is_affected_midr_range, \
+ .midr_model = model, \
+ .midr_range_min = MIDR_CPU_VAR_REV(0, 0), \
.midr_range_max = (MIDR_VARIANT_MASK | MIDR_REVISION_MASK)
+#define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
+ CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)
+
+/* Errata affecting a range of revisions of given model variant */
+#define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max) \
+ ERRATA_MIDR_RANGE(m, var, r_min, var, r_max)
+
+/* Errata affecting a single variant/revision of a model */
+#define ERRATA_MIDR_REV(model, var, rev) \
+ ERRATA_MIDR_RANGE(model, var, rev, var, rev)
+
+/* Errata affecting all variants/revisions of a given a model */
+#define ERRATA_MIDR_ALL_VERSIONS(model) \
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
+ CAP_MIDR_ALL_VERSIONS(model)
+
const struct arm64_cpu_capabilities arm64_errata[] = {
#if defined(CONFIG_ARM64_ERRATUM_826319) || \
defined(CONFIG_ARM64_ERRATUM_827319) || \
@@ -196,7 +211,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[012] */
.desc = "ARM errata 826319, 827319, 824069",
.capability = ARM64_WORKAROUND_CLEAN_CACHE,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x02),
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0x0, 0x0, 0x2),
.cpu_enable = cpu_enable_cache_maint_trap,
},
#endif
@@ -205,7 +220,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[01] */
.desc = "ARM errata 819472",
.capability = ARM64_WORKAROUND_CLEAN_CACHE,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x01),
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0x0, 0x0, 0x01),
.cpu_enable = cpu_enable_cache_maint_trap,
},
#endif
@@ -214,9 +229,9 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A57 r0p0 - r1p2 */
.desc = "ARM erratum 832075",
.capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
- MIDR_RANGE(MIDR_CORTEX_A57,
- MIDR_CPU_VAR_REV(0, 0),
- MIDR_CPU_VAR_REV(1, 2)),
+ ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
+ 0, 0,
+ 1, 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_834220
@@ -224,9 +239,9 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A57 r0p0 - r1p2 */
.desc = "ARM erratum 834220",
.capability = ARM64_WORKAROUND_834220,
- MIDR_RANGE(MIDR_CORTEX_A57,
- MIDR_CPU_VAR_REV(0, 0),
- MIDR_CPU_VAR_REV(1, 2)),
+ ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
+ 0, 0,
+ 1, 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_845719
@@ -234,7 +249,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[01234] */
.desc = "ARM erratum 845719",
.capability = ARM64_WORKAROUND_845719,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x04),
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0x0, 0x0, 0x4),
},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_23154
@@ -242,7 +257,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cavium ThunderX, pass 1.x */
.desc = "Cavium erratum 23154",
.capability = ARM64_WORKAROUND_CAVIUM_23154,
- MIDR_RANGE(MIDR_THUNDERX, 0x00, 0x01),
+ ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX, 0x0, 0x0, 0x01),
},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_27456
@@ -250,15 +265,15 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cavium ThunderX, T88 pass 1.x - 2.1 */
.desc = "Cavium erratum 27456",
.capability = ARM64_WORKAROUND_CAVIUM_27456,
- MIDR_RANGE(MIDR_THUNDERX,
- MIDR_CPU_VAR_REV(0, 0),
- MIDR_CPU_VAR_REV(1, 1)),
+ ERRATA_MIDR_RANGE(MIDR_THUNDERX,
+ 0, 0,
+ 1, 1),
},
{
/* Cavium ThunderX, T81 pass 1.0 */
.desc = "Cavium erratum 27456",
.capability = ARM64_WORKAROUND_CAVIUM_27456,
- MIDR_RANGE(MIDR_THUNDERX_81XX, 0x00, 0x00),
+ ERRATA_MIDR_REV(MIDR_THUNDERX_81XX, 0x0, 0x0),
},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_30115
@@ -266,20 +281,21 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cavium ThunderX, T88 pass 1.x - 2.2 */
.desc = "Cavium erratum 30115",
.capability = ARM64_WORKAROUND_CAVIUM_30115,
- MIDR_RANGE(MIDR_THUNDERX, 0x00,
- (1 << MIDR_VARIANT_SHIFT) | 2),
+ ERRATA_MIDR_RANGE(MIDR_THUNDERX,
+ 0x0, 0x0,
+ 0x1, 0x2),
},
{
/* Cavium ThunderX, T81 pass 1.0 - 1.2 */
.desc = "Cavium erratum 30115",
.capability = ARM64_WORKAROUND_CAVIUM_30115,
- MIDR_RANGE(MIDR_THUNDERX_81XX, 0x00, 0x02),
+ ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0x0, 0x0, 0x02),
},
{
/* Cavium ThunderX, T83 pass 1.0 */
.desc = "Cavium erratum 30115",
.capability = ARM64_WORKAROUND_CAVIUM_30115,
- MIDR_RANGE(MIDR_THUNDERX_83XX, 0x00, 0x00),
+ ERRATA_MIDR_REV(MIDR_THUNDERX_83XX, 0x0, 0x0),
},
#endif
{
@@ -293,9 +309,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
{
.desc = "Qualcomm Technologies Falkor erratum 1003",
.capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
- MIDR_RANGE(MIDR_QCOM_FALKOR_V1,
- MIDR_CPU_VAR_REV(0, 0),
- MIDR_CPU_VAR_REV(0, 0)),
+ ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
},
{
.desc = "Qualcomm Technologies Kryo erratum 1003",
@@ -309,9 +323,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
{
.desc = "Qualcomm Technologies Falkor erratum 1009",
.capability = ARM64_WORKAROUND_REPEAT_TLBI,
- MIDR_RANGE(MIDR_QCOM_FALKOR_V1,
- MIDR_CPU_VAR_REV(0, 0),
- MIDR_CPU_VAR_REV(0, 0)),
+ ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_858921
@@ -319,47 +331,47 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A73 all versions */
.desc = "ARM erratum 858921",
.capability = ARM64_WORKAROUND_858921,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
},
#endif
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
.cpu_enable = enable_psci_bp_hardening,
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
.cpu_enable = enable_psci_bp_hardening,
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
.cpu_enable = enable_psci_bp_hardening,
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
.cpu_enable = enable_psci_bp_hardening,
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
.cpu_enable = qcom_enable_link_stack_sanitization,
},
{
.capability = ARM64_HARDEN_BP_POST_GUEST_EXIT,
- MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
.cpu_enable = enable_psci_bp_hardening,
},
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
+ ERRATA_MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
.cpu_enable = enable_psci_bp_hardening,
},
#endif
--
2.14.3
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