Merge tag 'riscv-for-linus-6.11-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - Support for NUMA (via SRAT and SLIT), console output (via SPCR), and
   cache info (via PPTT) on ACPI-based systems.

 - The trap entry/exit code no longer breaks the return address stack
   predictor on many systems, which results in an improvement to trap
   latency.

 - Support for HAVE_ARCH_STACKLEAK.

 - The sv39 linear map has been extended to support 128GiB mappings.

 - The frequency of the mtime CSR is now visible via hwprobe.

* tag 'riscv-for-linus-6.11-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits)
  RISC-V: Provide the frequency of time CSR via hwprobe
  riscv: Extend sv39 linear mapping max size to 128G
  riscv: enable HAVE_ARCH_STACKLEAK
  riscv: signal: Remove unlikely() from WARN_ON() condition
  riscv: Improve exception and system call latency
  RISC-V: Select ACPI PPTT drivers
  riscv: cacheinfo: initialize cacheinfo's level and type from ACPI PPTT
  riscv: cacheinfo: remove the useless input parameter (node) of ci_leaf_init()
  RISC-V: ACPI: Enable SPCR table for console output on RISC-V
  riscv: boot: remove duplicated targets line
  trace: riscv: Remove deprecated kprobe on ftrace support
  riscv: cpufeature: Extract common elements from extension checking
  riscv: Introduce vendor variants of extension helpers
  riscv: Add vendor extensions to /proc/cpuinfo
  riscv: Extend cpufeature.c to detect vendor extensions
  RISC-V: run savedefconfig for defconfig
  RISC-V: hwprobe: sort EXT_KEY()s in hwprobe_isa_ext0() alphabetically
  ACPI: NUMA: replace pr_info with pr_debug in arch_acpi_numa_init
  ACPI: NUMA: change the ACPI_NUMA to a hidden option
  ACPI: NUMA: Add handler for SRAT RINTC affinity structure
  ...

1 files changed, 26 insertions, 22 deletions

diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c
index 685594769535..8d1b5c35d2a7 100644
--- a/arch/riscv/kernel/sys_hwprobe.c
+++ b/arch/riscv/kernel/sys_hwprobe.c
@@ -9,6 +9,7 @@
 #include <asm/cpufeature.h>
 #include <asm/hwprobe.h>
 #include <asm/processor.h>
+#include <asm/delay.h>
 #include <asm/sbi.h>
 #include <asm/switch_to.h>
 #include <asm/uaccess.h>
@@ -93,44 +94,45 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair,
 		 * regardless of the kernel's configuration, as no other checks, besides
 		 * presence in the hart_isa bitmap, are made.
 		 */
+		EXT_KEY(ZACAS);
+		EXT_KEY(ZAWRS);
 		EXT_KEY(ZBA);
 		EXT_KEY(ZBB);
-		EXT_KEY(ZBS);
-		EXT_KEY(ZICBOZ);
 		EXT_KEY(ZBC);
-
 		EXT_KEY(ZBKB);
 		EXT_KEY(ZBKC);
 		EXT_KEY(ZBKX);
+		EXT_KEY(ZBS);
+		EXT_KEY(ZCA);
+		EXT_KEY(ZCB);
+		EXT_KEY(ZCMOP);
+		EXT_KEY(ZICBOZ);
+		EXT_KEY(ZICOND);
+		EXT_KEY(ZIHINTNTL);
+		EXT_KEY(ZIHINTPAUSE);
+		EXT_KEY(ZIMOP);
 		EXT_KEY(ZKND);
 		EXT_KEY(ZKNE);
 		EXT_KEY(ZKNH);
 		EXT_KEY(ZKSED);
 		EXT_KEY(ZKSH);
 		EXT_KEY(ZKT);
-		EXT_KEY(ZIHINTNTL);
 		EXT_KEY(ZTSO);
-		EXT_KEY(ZACAS);
-		EXT_KEY(ZICOND);
-		EXT_KEY(ZIHINTPAUSE);
-		EXT_KEY(ZIMOP);
-		EXT_KEY(ZCA);
-		EXT_KEY(ZCB);
-		EXT_KEY(ZCMOP);
-		EXT_KEY(ZAWRS);
 
 		/*
 		 * All the following extensions must depend on the kernel
 		 * support of V.
 		 */
 		if (has_vector()) {
-			EXT_KEY(ZVE32X);
-			EXT_KEY(ZVE32F);
-			EXT_KEY(ZVE64X);
-			EXT_KEY(ZVE64F);
-			EXT_KEY(ZVE64D);
 			EXT_KEY(ZVBB);
 			EXT_KEY(ZVBC);
+			EXT_KEY(ZVE32F);
+			EXT_KEY(ZVE32X);
+			EXT_KEY(ZVE64D);
+			EXT_KEY(ZVE64F);
+			EXT_KEY(ZVE64X);
+			EXT_KEY(ZVFH);
+			EXT_KEY(ZVFHMIN);
 			EXT_KEY(ZVKB);
 			EXT_KEY(ZVKG);
 			EXT_KEY(ZVKNED);
@@ -139,16 +141,14 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair,
 			EXT_KEY(ZVKSED);
 			EXT_KEY(ZVKSH);
 			EXT_KEY(ZVKT);
-			EXT_KEY(ZVFH);
-			EXT_KEY(ZVFHMIN);
 		}
 
 		if (has_fpu()) {
-			EXT_KEY(ZFH);
-			EXT_KEY(ZFHMIN);
-			EXT_KEY(ZFA);
 			EXT_KEY(ZCD);
 			EXT_KEY(ZCF);
+			EXT_KEY(ZFA);
+			EXT_KEY(ZFH);
+			EXT_KEY(ZFHMIN);
 		}
 #undef EXT_KEY
 	}
@@ -237,6 +237,10 @@ static void hwprobe_one_pair(struct riscv_hwprobe *pair,
 		pair->value = user_max_virt_addr();
 		break;
 
+	case RISCV_HWPROBE_KEY_TIME_CSR_FREQ:
+		pair->value = riscv_timebase;
+		break;
+
 	/*
 	 * For forward compatibility, unknown keys don't fail the whole
 	 * call, but get their element key set to -1 and value set to 0