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authorTakashi Iwai <tiwai@suse.de>2013-08-23 14:12:22 +0200
committerTakashi Iwai <tiwai@suse.de>2013-08-23 14:12:22 +0200
commit68538bf2bce557c3b5fe8c59b034d45352500db1 (patch)
treea84b68990cadcbfc277acc7b7f2b75716750e203 /drivers/thermal/x86_pkg_temp_thermal.c
parenta8cc20999799a94929a56393ff39b32245e33d64 (diff)
parent43bcb402f84fe459102120b4e2d28d7117f16cd0 (diff)
Merge tag 'asoc-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.12 - DAPM is now mandatory for CODEC drivers in order to avoid the repeated regressions in the special cases for non-DAPM CODECs and make it easier to integrate with other components on boards. All existing drivers have had some level of DAPM support added. - A lot of cleanups in DAPM plus support for maintaining controls in a specific state while a DAPM widget all contributed by Lars-Peter Clausen. - Core helpers for bitbanged AC'97 reset from Markus Pargmann. - New drivers and support for Analog Devices ADAU1702 and ADAU1401(a), Asahi Kasei Microdevices AK4554, Atmel AT91ASM9x5 and WM8904 based machines, Freescale S/PDIF and SSI AC'97, Renesas R-Car SoCs, Samsung Exynos5420 SoCs, Texas Instruments PCM1681 and PCM1792A and Wolfson Microelectronics WM8997. - Support for building drivers that can support it cross-platform for compile test.
Diffstat (limited to 'drivers/thermal/x86_pkg_temp_thermal.c')
-rw-r--r--drivers/thermal/x86_pkg_temp_thermal.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
index 5de56f671a9..f36950e4134 100644
--- a/drivers/thermal/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/x86_pkg_temp_thermal.c
@@ -54,6 +54,8 @@ MODULE_PARM_DESC(notify_delay_ms,
* is some wrong values returned by cpuid for number of thresholds.
*/
#define MAX_NUMBER_OF_TRIPS 2
+/* Limit number of package temp zones */
+#define MAX_PKG_TEMP_ZONE_IDS 256
struct phy_dev_entry {
struct list_head list;
@@ -394,12 +396,16 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
char buffer[30];
int thres_count;
u32 eax, ebx, ecx, edx;
+ u8 *temp;
cpuid(6, &eax, &ebx, &ecx, &edx);
thres_count = ebx & 0x07;
if (!thres_count)
return -ENODEV;
+ if (topology_physical_package_id(cpu) > MAX_PKG_TEMP_ZONE_IDS)
+ return -ENODEV;
+
thres_count = clamp_val(thres_count, 0, MAX_NUMBER_OF_TRIPS);
err = get_tj_max(cpu, &tj_max);
@@ -417,13 +423,14 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
spin_lock(&pkg_work_lock);
if (topology_physical_package_id(cpu) > max_phy_id)
max_phy_id = topology_physical_package_id(cpu);
- pkg_work_scheduled = krealloc(pkg_work_scheduled,
- (max_phy_id+1) * sizeof(u8), GFP_ATOMIC);
- if (!pkg_work_scheduled) {
+ temp = krealloc(pkg_work_scheduled,
+ (max_phy_id+1) * sizeof(u8), GFP_ATOMIC);
+ if (!temp) {
spin_unlock(&pkg_work_lock);
err = -ENOMEM;
goto err_ret_free;
}
+ pkg_work_scheduled = temp;
pkg_work_scheduled[topology_physical_package_id(cpu)] = 0;
spin_unlock(&pkg_work_lock);
@@ -511,7 +518,7 @@ static int get_core_online(unsigned int cpu)
/* Check if there is already an instance for this package */
if (!phdev) {
- if (!cpu_has(c, X86_FEATURE_DTHERM) &&
+ if (!cpu_has(c, X86_FEATURE_DTHERM) ||
!cpu_has(c, X86_FEATURE_PTS))
return -ENODEV;
if (pkg_temp_thermal_device_add(cpu))
@@ -562,7 +569,7 @@ static struct notifier_block pkg_temp_thermal_notifier __refdata = {
};
static const struct x86_cpu_id __initconst pkg_temp_thermal_ids[] = {
- { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_DTHERM },
+ { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_PTS },
{}
};
MODULE_DEVICE_TABLE(x86cpu, pkg_temp_thermal_ids);
@@ -592,7 +599,6 @@ static int __init pkg_temp_thermal_init(void)
return 0;
err_ret:
- get_online_cpus();
for_each_online_cpu(i)
put_core_offline(i);
put_online_cpus();