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drm/i915: Parametrize and fix SWF registers

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Parametrize the SWF registers. This also fixes the register offsets,
which were mostly garbage in the old defines.

Also save/restore only as many SWF registers that each platform has.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2015-09-18 20:03:43 +03:00 committed by Daniel Vetter
parent fd8f507c0d
commit 85fa792bee
3 changed files with 50 additions and 25 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1031,7 +1031,7 @@ struct i915_suspend_saved_registers {
u32 saveMI_ARB_STATE;
u32 saveSWF0[16];
u32 saveSWF1[16];
u32 saveSWF2[3];
u32 saveSWF3[3];
uint64_t saveFENCE[I915_MAX_NUM_FENCES];
u32 savePCH_PORT_HOTPLUG;
u16 saveGCDGMBUS;

28
drivers/gpu/drm/i915/i915_reg.h
View File

@ -4991,20 +4991,20 @@ enum skl_disp_power_wells {
#define I915_LO_DISPBASE(val) (val & ~DISP_BASEADDR_MASK)
#define I915_HI_DISPBASE(val) (val & DISP_BASEADDR_MASK)
/* VBIOS flags */
#define SWF00 (dev_priv->info.display_mmio_offset + 0x71410)
#define SWF01 (dev_priv->info.display_mmio_offset + 0x71414)
#define SWF02 (dev_priv->info.display_mmio_offset + 0x71418)
#define SWF03 (dev_priv->info.display_mmio_offset + 0x7141c)
#define SWF04 (dev_priv->info.display_mmio_offset + 0x71420)
#define SWF05 (dev_priv->info.display_mmio_offset + 0x71424)
#define SWF06 (dev_priv->info.display_mmio_offset + 0x71428)
#define SWF10 (dev_priv->info.display_mmio_offset + 0x70410)
#define SWF11 (dev_priv->info.display_mmio_offset + 0x70414)
#define SWF14 (dev_priv->info.display_mmio_offset + 0x71420)
#define SWF30 (dev_priv->info.display_mmio_offset + 0x72414)
#define SWF31 (dev_priv->info.display_mmio_offset + 0x72418)
#define SWF32 (dev_priv->info.display_mmio_offset + 0x7241c)
/*
* VBIOS flags
* gen2:
* [00:06] alm,mgm
* [10:16] all
* [30:32] alm,mgm
* gen3+:
* [00:0f] all
* [10:1f] all
* [30:32] all
*/
#define SWF0(i) (dev_priv->info.display_mmio_offset + 0x70410 + (i) * 4)
#define SWF1(i) (dev_priv->info.display_mmio_offset + 0x71410 + (i) * 4)
#define SWF3(i) (dev_priv->info.display_mmio_offset + 0x72414 + (i) * 4)
/* Pipe B */
#define _PIPEBDSL (dev_priv->info.display_mmio_offset + 0x71000)

45
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -122,12 +122,24 @@ int i915_save_state(struct drm_device *dev)
dev_priv->regfile.saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);
/* Scratch space */
for (i = 0; i < 16; i++) {
dev_priv->regfile.saveSWF0[i] = I915_READ(SWF00 + (i << 2));
dev_priv->regfile.saveSWF1[i] = I915_READ(SWF10 + (i << 2));
if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
for (i = 0; i < 7; i++) {
dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
}
for (i = 0; i < 3; i++)
dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
} else if (IS_GEN2(dev_priv)) {
for (i = 0; i < 7; i++)
dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
} else if (HAS_GMCH_DISPLAY(dev_priv)) {
for (i = 0; i < 16; i++) {
dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
}
for (i = 0; i < 3; i++)
dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
}
for (i = 0; i < 3; i++)
dev_priv->regfile.saveSWF2[i] = I915_READ(SWF30 + (i << 2));
mutex_unlock(&dev->struct_mutex);
@ -156,12 +168,25 @@ int i915_restore_state(struct drm_device *dev)
/* Memory arbitration state */
I915_WRITE(MI_ARB_STATE, dev_priv->regfile.saveMI_ARB_STATE | 0xffff0000);
for (i = 0; i < 16; i++) {
I915_WRITE(SWF00 + (i << 2), dev_priv->regfile.saveSWF0[i]);
I915_WRITE(SWF10 + (i << 2), dev_priv->regfile.saveSWF1[i]);
/* Scratch space */
if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
for (i = 0; i < 7; i++) {
I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
}
for (i = 0; i < 3; i++)
I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
} else if (IS_GEN2(dev_priv)) {
for (i = 0; i < 7; i++)
I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
} else if (HAS_GMCH_DISPLAY(dev_priv)) {
for (i = 0; i < 16; i++) {
I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
}
for (i = 0; i < 3; i++)
I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
}
for (i = 0; i < 3; i++)
I915_WRITE(SWF30 + (i << 2), dev_priv->regfile.saveSWF2[i]);
mutex_unlock(&dev->struct_mutex);