Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 core platform updates from Ingo Molnar:
 "Intel Quark and Geode SoC platform updates"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/intel/quark: Drop IMR lock bit support
  x86/platform/intel/mid: Remove dead code
  x86/platform: Make platform/geode/net5501.c explicitly non-modular
  x86/platform: Make platform/geode/alix.c explicitly non-modular
  x86/platform: Make platform/geode/geos.c explicitly non-modular
  x86/platform: Make platform/intel-quark/imr_selftest.c explicitly non-modular
  x86/platform: Make platform/intel-quark/imr.c explicitly non-modular

arch/x86/include/asm/imr.h

@@ -53,7 +53,7 @@
 #define IMR_MASK		(IMR_ALIGN - 1)
 
 int imr_add_range(phys_addr_t base, size_t size,
-		  unsigned int rmask, unsigned int wmask, bool lock);
+		  unsigned int rmask, unsigned int wmask);
 
 int imr_remove_range(phys_addr_t base, size_t size);
 

arch/x86/platform/geode/alix.c

@@ -21,7 +21,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/string.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
@@ -35,6 +35,11 @@
 #define BIOS_SIGNATURE_COREBOOT		0x500
 #define BIOS_REGION_SIZE		0x10000
 
+/*
+ * This driver is not modular, but to keep back compatibility
+ * with existing use cases, continuing with module_param is
+ * the easiest way forward.
+ */
 static bool force = 0;
 module_param(force, bool, 0444);
 /* FIXME: Award bios is not automatically detected as Alix platform */
@@ -192,9 +197,4 @@ static int __init alix_init(void)
 
 	return 0;
 }
-
-module_init(alix_init);
-
-MODULE_AUTHOR("Ed Wildgoose <kernel@wildgooses.com>");
-MODULE_DESCRIPTION("PCEngines ALIX System Setup");
-MODULE_LICENSE("GPL");
+device_initcall(alix_init);

arch/x86/platform/geode/geos.c

@@ -19,7 +19,6 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/string.h>
-#include <linux/module.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
@@ -120,9 +119,4 @@ static int __init geos_init(void)
 
 	return 0;
 }
-
-module_init(geos_init);
-
-MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>");
-MODULE_DESCRIPTION("Traverse Technologies Geos System Setup");
-MODULE_LICENSE("GPL");
+device_initcall(geos_init);

arch/x86/platform/geode/net5501.c

@@ -20,7 +20,6 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/string.h>
-#include <linux/module.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
@@ -146,9 +145,4 @@ static int __init net5501_init(void)
 
 	return 0;
 }
-
-module_init(net5501_init);
-
-MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>");
-MODULE_DESCRIPTION("Soekris net5501 System Setup");
-MODULE_LICENSE("GPL");
+device_initcall(net5501_init);

arch/x86/platform/intel-mid/mfld.c

@@ -52,10 +52,7 @@ static unsigned long __init mfld_calibrate_tsc(void)
 	/* mark tsc clocksource as reliable */
 	set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
 
-	if (fast_calibrate)
-		return fast_calibrate;
-
-	return 0;
+	return fast_calibrate;
 }
 
 static void __init penwell_arch_setup(void)

arch/x86/platform/intel-mid/mrfl.c

@@ -81,10 +81,7 @@ static unsigned long __init tangier_calibrate_tsc(void)
 	/* mark tsc clocksource as reliable */
 	set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
 
-	if (fast_calibrate)
-		return fast_calibrate;
-
-	return 0;
+	return fast_calibrate;
 }
 
 static void __init tangier_arch_setup(void)

arch/x86/platform/intel-quark/imr.c

@@ -1,5 +1,5 @@
 /**
- * imr.c
+ * imr.c -- Intel Isolated Memory Region driver
  *
  * Copyright(c) 2013 Intel Corporation.
  * Copyright(c) 2015 Bryan O'Donoghue <pure.logic@nexus-software.ie>
@@ -31,7 +31,6 @@
 #include <linux/debugfs.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/module.h>
 #include <linux/types.h>
 
 struct imr_device {
@@ -135,11 +134,9 @@ static int imr_read(struct imr_device *idev, u32 imr_id, struct imr_regs *imr)
  * @idev:	pointer to imr_device structure.
  * @imr_id:	IMR entry to write.
  * @imr:	IMR structure representing address and access masks.
- * @lock:	indicates if the IMR lock bit should be applied.
  * @return:	0 on success or error code passed from mbi_iosf on failure.
  */
-static int imr_write(struct imr_device *idev, u32 imr_id,
-		     struct imr_regs *imr, bool lock)
+static int imr_write(struct imr_device *idev, u32 imr_id, struct imr_regs *imr)
 {
 	unsigned long flags;
 	u32 reg = imr_id * IMR_NUM_REGS + idev->reg_base;
@@ -163,15 +160,6 @@ static int imr_write(struct imr_device *idev, u32 imr_id,
 	if (ret)
 		goto failed;
 
-	/* Lock bit must be set separately to addr_lo address bits. */
-	if (lock) {
-		imr->addr_lo |= IMR_LOCK;
-		ret = iosf_mbi_write(QRK_MBI_UNIT_MM, MBI_REG_WRITE,
-				     reg - IMR_NUM_REGS, imr->addr_lo);
-		if (ret)
-			goto failed;
-	}
-
 	local_irq_restore(flags);
 	return 0;
 failed:
@@ -269,17 +257,6 @@ static int imr_debugfs_register(struct imr_device *idev)
 	return PTR_ERR_OR_ZERO(idev->file);
 }
 
-/**
- * imr_debugfs_unregister - unregister debugfs hooks.
- *
- * @idev:	pointer to imr_device structure.
- * @return:
- */
-static void imr_debugfs_unregister(struct imr_device *idev)
-{
-	debugfs_remove(idev->file);
-}
-
 /**
  * imr_check_params - check passed address range IMR alignment and non-zero size
  *
@@ -334,11 +311,10 @@ static inline int imr_address_overlap(phys_addr_t addr, struct imr_regs *imr)
  * @size:	physical size of region in bytes must be aligned to 1KiB.
  * @read_mask:	read access mask.
  * @write_mask:	write access mask.
- * @lock:	indicates whether or not to permanently lock this region.
  * @return:	zero on success or negative value indicating error.
  */
 int imr_add_range(phys_addr_t base, size_t size,
-		  unsigned int rmask, unsigned int wmask, bool lock)
+		  unsigned int rmask, unsigned int wmask)
 {
 	phys_addr_t end;
 	unsigned int i;
@@ -411,7 +387,7 @@ int imr_add_range(phys_addr_t base, size_t size,
 	imr.rmask = rmask;
 	imr.wmask = wmask;
 
-	ret = imr_write(idev, reg, &imr, lock);
+	ret = imr_write(idev, reg, &imr);
 	if (ret < 0) {
 		/*
 		 * In the highly unlikely event iosf_mbi_write failed
@@ -422,7 +398,7 @@ int imr_add_range(phys_addr_t base, size_t size,
 		imr.addr_hi = 0;
 		imr.rmask = IMR_READ_ACCESS_ALL;
 		imr.wmask = IMR_WRITE_ACCESS_ALL;
-		imr_write(idev, reg, &imr, false);
+		imr_write(idev, reg, &imr);
 	}
 failed:
 	mutex_unlock(&idev->lock);
@@ -518,7 +494,7 @@ static int __imr_remove_range(int reg, phys_addr_t base, size_t size)
 	imr.rmask = IMR_READ_ACCESS_ALL;
 	imr.wmask = IMR_WRITE_ACCESS_ALL;
 
-	ret = imr_write(idev, reg, &imr, false);
+	ret = imr_write(idev, reg, &imr);
 
 failed:
 	mutex_unlock(&idev->lock);
@@ -599,7 +575,7 @@ static void __init imr_fixup_memmap(struct imr_device *idev)
 	 * We don't round up @size since it is already PAGE_SIZE aligned.
 	 * See vmlinux.lds.S for details.
 	 */
-	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, false);
+	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU);
 	if (ret < 0) {
 		pr_err("unable to setup IMR for kernel: %zu KiB (%lx - %lx)\n",
 			size / 1024, start, end);
@@ -614,7 +590,6 @@ static const struct x86_cpu_id imr_ids[] __initconst = {
 	{ X86_VENDOR_INTEL, 5, 9 },	/* Intel Quark SoC X1000. */
 	{}
 };
-MODULE_DEVICE_TABLE(x86cpu, imr_ids);
 
 /**
  * imr_init - entry point for IMR driver.
@@ -640,22 +615,4 @@ static int __init imr_init(void)
 	imr_fixup_memmap(idev);
 	return 0;
 }
-
-/**
- * imr_exit - exit point for IMR code.
- *
- * Deregisters debugfs, leave IMR state as-is.
- *
- * return:
- */
-static void __exit imr_exit(void)
-{
-	imr_debugfs_unregister(&imr_dev);
-}
-
-module_init(imr_init);
-module_exit(imr_exit);
-
-MODULE_AUTHOR("Bryan O'Donoghue <pure.logic@nexus-software.ie>");
-MODULE_DESCRIPTION("Intel Isolated Memory Region driver");
-MODULE_LICENSE("Dual BSD/GPL");
+device_initcall(imr_init);

arch/x86/platform/intel-quark/imr_selftest.c

@@ -1,5 +1,5 @@
 /**
- * imr_selftest.c
+ * imr_selftest.c -- Intel Isolated Memory Region self-test driver
  *
  * Copyright(c) 2013 Intel Corporation.
  * Copyright(c) 2015 Bryan O'Donoghue <pure.logic@nexus-software.ie>
@@ -15,7 +15,6 @@
 #include <asm/imr.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/module.h>
 #include <linux/types.h>
 
 #define SELFTEST KBUILD_MODNAME ": "
@@ -61,30 +60,30 @@ static void __init imr_self_test(void)
 	int ret;
 
 	/* Test zero zero. */
-	ret = imr_add_range(0, 0, 0, 0, false);
+	ret = imr_add_range(0, 0, 0, 0);
 	imr_self_test_result(ret < 0, "zero sized IMR\n");
 
 	/* Test exact overlap. */
-	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, false);
+	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU);
 	imr_self_test_result(ret < 0, fmt_over, __va(base), __va(base + size));
 
 	/* Test overlap with base inside of existing. */
 	base += size - IMR_ALIGN;
-	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, false);
+	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU);
 	imr_self_test_result(ret < 0, fmt_over, __va(base), __va(base + size));
 
 	/* Test overlap with end inside of existing. */
 	base -= size + IMR_ALIGN * 2;
-	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU, false);
+	ret = imr_add_range(base, size, IMR_CPU, IMR_CPU);
 	imr_self_test_result(ret < 0, fmt_over, __va(base), __va(base + size));
 
 	/* Test that a 1 KiB IMR @ zero with read/write all will bomb out. */
 	ret = imr_add_range(0, IMR_ALIGN, IMR_READ_ACCESS_ALL,
-			    IMR_WRITE_ACCESS_ALL, false);
+			    IMR_WRITE_ACCESS_ALL);
 	imr_self_test_result(ret < 0, "1KiB IMR @ 0x00000000 - access-all\n");
 
 	/* Test that a 1 KiB IMR @ zero with CPU only will work. */
-	ret = imr_add_range(0, IMR_ALIGN, IMR_CPU, IMR_CPU, false);
+	ret = imr_add_range(0, IMR_ALIGN, IMR_CPU, IMR_CPU);
 	imr_self_test_result(ret >= 0, "1KiB IMR @ 0x00000000 - cpu-access\n");
 	if (ret >= 0) {
 		ret = imr_remove_range(0, IMR_ALIGN);
@@ -93,8 +92,7 @@ static void __init imr_self_test(void)
 
 	/* Test 2 KiB works. */
 	size = IMR_ALIGN * 2;
-	ret = imr_add_range(0, size, IMR_READ_ACCESS_ALL,
-			    IMR_WRITE_ACCESS_ALL, false);
+	ret = imr_add_range(0, size, IMR_READ_ACCESS_ALL, IMR_WRITE_ACCESS_ALL);
 	imr_self_test_result(ret >= 0, "2KiB IMR @ 0x00000000\n");
 	if (ret >= 0) {
 		ret = imr_remove_range(0, size);
@@ -106,7 +104,6 @@ static const struct x86_cpu_id imr_ids[] __initconst = {
 	{ X86_VENDOR_INTEL, 5, 9 },	/* Intel Quark SoC X1000. */
 	{}
 };
-MODULE_DEVICE_TABLE(x86cpu, imr_ids);
 
 /**
  * imr_self_test_init - entry point for IMR driver.
@@ -125,13 +122,4 @@ static int __init imr_self_test_init(void)
  *
  * return:
  */
-static void __exit imr_self_test_exit(void)
-{
-}
-
-module_init(imr_self_test_init);
-module_exit(imr_self_test_exit);
-
-MODULE_AUTHOR("Bryan O'Donoghue <pure.logic@nexus-software.ie>");
-MODULE_DESCRIPTION("Intel Isolated Memory Region self-test driver");
-MODULE_LICENSE("Dual BSD/GPL");
+device_initcall(imr_self_test_init);