#include <drm/i915_drm.h>
#include <asm/msr.h>
#include <asm/processor.h>
+#include "intel_ips.h"
#define PCI_DEVICE_ID_INTEL_THERMAL_SENSOR 0x3b32
#define thm_writel(off, val) writel((val), ips->regmap + (off))
static const int IPS_ADJUST_PERIOD = 5000; /* ms */
+static bool late_i915_load = false;
/* For initial average collection */
static const int IPS_SAMPLE_PERIOD = 200; /* ms */
u64 orig_turbo_ratios;
};
+static bool
+ips_gpu_turbo_enabled(struct ips_driver *ips);
+
/**
* ips_cpu_busy - is CPU busy?
* @ips: IPS driver struct
*/
static bool ips_gpu_busy(struct ips_driver *ips)
{
- if (!ips->gpu_turbo_enabled)
+ if (!ips_gpu_turbo_enabled(ips))
return false;
return ips->gpu_busy();
*/
static void ips_gpu_raise(struct ips_driver *ips)
{
- if (!ips->gpu_turbo_enabled)
+ if (!ips_gpu_turbo_enabled(ips))
return;
if (!ips->gpu_raise())
*/
static void ips_gpu_lower(struct ips_driver *ips)
{
- if (!ips->gpu_turbo_enabled)
+ if (!ips_gpu_turbo_enabled(ips))
return;
if (!ips->gpu_lower())
return false;
}
+static bool
+ips_gpu_turbo_enabled(struct ips_driver *ips)
+{
+ if (!ips->gpu_busy && late_i915_load) {
+ if (ips_get_i915_syms(ips)) {
+ dev_info(&ips->dev->dev,
+ "i915 driver attached, reenabling gpu turbo\n");
+ ips->gpu_turbo_enabled = !(thm_readl(THM_HTS) & HTS_GTD_DIS);
+ }
+ }
+
+ return ips->gpu_turbo_enabled;
+}
+
+void
+ips_link_to_i915_driver(void)
+{
+ /* We can't cleanly get at the various ips_driver structs from
+ * this caller (the i915 driver), so just set a flag saying
+ * that it's time to try getting the symbols again.
+ */
+ late_i915_load = true;
+}
+EXPORT_SYMBOL_GPL(ips_link_to_i915_driver);
+
static DEFINE_PCI_DEVICE_TABLE(ips_id_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_THERMAL_SENSOR), },