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drm/i915: add power monitoring support

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Add power monitoring support to the i915 driver for use by the IPS
driver.  Export the available power info to the IPS driver through a few
new inter-driver hooks.  When used together, the IPS driver and this
patch can significantly increase graphics performance on Ironlake class
chips.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: Fixed 32-bit compile.  stupid obfuscating div_u64()]
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes
2010-05-20 14:28:11 -07:00
zatwierdzone przez Eric Anholt
rodzic 7a772c492f
commit 7648fa99eb
6 zmienionych plików z 772 dodań i 53 usunięć
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20
drivers/gpu/drm/i915/i915_drv.h
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@@ -619,6 +619,18 @@ typedef struct drm_i915_private {
u8 cur_delay;
u8 min_delay;
u8 max_delay;
u8 fmax;
u8 fstart;
u64 last_count1;
unsigned long last_time1;
u64 last_count2;
struct timespec last_time2;
unsigned long gfx_power;
int c_m;
int r_t;
u8 corr;
spinlock_t *mchdev_lock;
enum no_fbc_reason no_fbc_reason;
@@ -802,6 +814,11 @@ extern int i915_emit_box(struct drm_device *dev,
struct drm_clip_rect *boxes,
int i, int DR1, int DR4);
extern int i965_reset(struct drm_device *dev, u8 flags);
extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
/* i915_irq.c */
void i915_hangcheck_elapsed(unsigned long data);
@@ -1005,7 +1022,7 @@ extern void g4x_disable_fbc(struct drm_device *dev);
extern void intel_disable_fbc(struct drm_device *dev);
extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
extern bool intel_fbc_enabled(struct drm_device *dev);
extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
extern void intel_detect_pch (struct drm_device *dev);
extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
@@ -1030,6 +1047,7 @@ extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
#define I915_WRITE64(reg, val) writeq(val, dev_priv->regs + (reg))
#define I915_READ64(reg) readq(dev_priv->regs + (reg))
#define POSTING_READ(reg) (void)I915_READ(reg)
#define POSTING_READ16(reg) (void)I915_READ16(reg)
#define I915_VERBOSE 0