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path: root/drivers/gpu/drm/i915/intel_runtime_pm.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
-rw-r--r--drivers/gpu/drm/i915/intel_runtime_pm.c947
1 files changed, 435 insertions, 512 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index f630d632a976..b66d8e136aa3 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -50,10 +50,11 @@
*/
bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
- int power_well_id);
+ enum i915_power_well_id power_well_id);
static struct i915_power_well *
-lookup_power_well(struct drm_i915_private *dev_priv, int power_well_id);
+lookup_power_well(struct drm_i915_private *dev_priv,
+ enum i915_power_well_id power_well_id);
const char *
intel_display_power_domain_str(enum intel_display_power_domain domain)
@@ -168,18 +169,6 @@ static void intel_power_well_put(struct drm_i915_private *dev_priv,
intel_power_well_disable(dev_priv, power_well);
}
-/*
- * We should only use the power well if we explicitly asked the hardware to
- * enable it, so check if it's enabled and also check if we've requested it to
- * be enabled.
- */
-static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- return I915_READ(HSW_PWR_WELL_DRIVER) ==
- (HSW_PWR_WELL_ENABLE_REQUEST | HSW_PWR_WELL_STATE_ENABLED);
-}
-
/**
* __intel_display_power_is_enabled - unlocked check for a power domain
* @dev_priv: i915 device instance
@@ -278,7 +267,8 @@ void intel_display_set_init_power(struct drm_i915_private *dev_priv,
* to be enabled, and it will only be disabled if none of the registers is
* requesting it to be enabled.
*/
-static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv)
+static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv,
+ u8 irq_pipe_mask, bool has_vga)
{
struct pci_dev *pdev = dev_priv->drm.pdev;
@@ -292,85 +282,55 @@ static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv)
* sure vgacon can keep working normally without triggering interrupts
* and error messages.
*/
- vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
- outb(inb(VGA_MSR_READ), VGA_MSR_WRITE);
- vga_put(pdev, VGA_RSRC_LEGACY_IO);
-
- if (IS_BROADWELL(dev_priv))
- gen8_irq_power_well_post_enable(dev_priv,
- 1 << PIPE_C | 1 << PIPE_B);
-}
-
-static void hsw_power_well_pre_disable(struct drm_i915_private *dev_priv)
-{
- if (IS_BROADWELL(dev_priv))
- gen8_irq_power_well_pre_disable(dev_priv,
- 1 << PIPE_C | 1 << PIPE_B);
-}
-
-static void skl_power_well_post_enable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- struct pci_dev *pdev = dev_priv->drm.pdev;
-
- /*
- * After we re-enable the power well, if we touch VGA register 0x3d5
- * we'll get unclaimed register interrupts. This stops after we write
- * anything to the VGA MSR register. The vgacon module uses this
- * register all the time, so if we unbind our driver and, as a
- * consequence, bind vgacon, we'll get stuck in an infinite loop at
- * console_unlock(). So make here we touch the VGA MSR register, making
- * sure vgacon can keep working normally without triggering interrupts
- * and error messages.
- */
- if (power_well->id == SKL_DISP_PW_2) {
+ if (has_vga) {
vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
outb(inb(VGA_MSR_READ), VGA_MSR_WRITE);
vga_put(pdev, VGA_RSRC_LEGACY_IO);
-
- gen8_irq_power_well_post_enable(dev_priv,
- 1 << PIPE_C | 1 << PIPE_B);
}
+
+ if (irq_pipe_mask)
+ gen8_irq_power_well_post_enable(dev_priv, irq_pipe_mask);
}
-static void skl_power_well_pre_disable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
+static void hsw_power_well_pre_disable(struct drm_i915_private *dev_priv,
+ u8 irq_pipe_mask)
{
- if (power_well->id == SKL_DISP_PW_2)
- gen8_irq_power_well_pre_disable(dev_priv,
- 1 << PIPE_C | 1 << PIPE_B);
+ if (irq_pipe_mask)
+ gen8_irq_power_well_pre_disable(dev_priv, irq_pipe_mask);
}
-static void gen9_wait_for_power_well_enable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
+
+static void hsw_wait_for_power_well_enable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
{
- int id = power_well->id;
+ enum i915_power_well_id id = power_well->id;
/* Timeout for PW1:10 us, AUX:not specified, other PWs:20 us. */
WARN_ON(intel_wait_for_register(dev_priv,
- HSW_PWR_WELL_DRIVER,
- SKL_POWER_WELL_STATE(id),
- SKL_POWER_WELL_STATE(id),
+ HSW_PWR_WELL_CTL_DRIVER(id),
+ HSW_PWR_WELL_CTL_STATE(id),
+ HSW_PWR_WELL_CTL_STATE(id),
1));
}
-static u32 gen9_power_well_requesters(struct drm_i915_private *dev_priv, int id)
+static u32 hsw_power_well_requesters(struct drm_i915_private *dev_priv,
+ enum i915_power_well_id id)
{
- u32 req_mask = SKL_POWER_WELL_REQ(id);
+ u32 req_mask = HSW_PWR_WELL_CTL_REQ(id);
u32 ret;
- ret = I915_READ(HSW_PWR_WELL_BIOS) & req_mask ? 1 : 0;
- ret |= I915_READ(HSW_PWR_WELL_DRIVER) & req_mask ? 2 : 0;
- ret |= I915_READ(HSW_PWR_WELL_KVMR) & req_mask ? 4 : 0;
- ret |= I915_READ(HSW_PWR_WELL_DEBUG) & req_mask ? 8 : 0;
+ ret = I915_READ(HSW_PWR_WELL_CTL_BIOS(id)) & req_mask ? 1 : 0;
+ ret |= I915_READ(HSW_PWR_WELL_CTL_DRIVER(id)) & req_mask ? 2 : 0;
+ ret |= I915_READ(HSW_PWR_WELL_CTL_KVMR) & req_mask ? 4 : 0;
+ ret |= I915_READ(HSW_PWR_WELL_CTL_DEBUG(id)) & req_mask ? 8 : 0;
return ret;
}
-static void gen9_wait_for_power_well_disable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
+static void hsw_wait_for_power_well_disable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
{
- int id = power_well->id;
+ enum i915_power_well_id id = power_well->id;
bool disabled;
u32 reqs;
@@ -383,9 +343,9 @@ static void gen9_wait_for_power_well_disable(struct drm_i915_private *dev_priv,
* Skip the wait in case any of the request bits are set and print a
* diagnostic message.
*/
- wait_for((disabled = !(I915_READ(HSW_PWR_WELL_DRIVER) &
- SKL_POWER_WELL_STATE(id))) ||
- (reqs = gen9_power_well_requesters(dev_priv, id)), 1);
+ wait_for((disabled = !(I915_READ(HSW_PWR_WELL_CTL_DRIVER(id)) &
+ HSW_PWR_WELL_CTL_STATE(id))) ||
+ (reqs = hsw_power_well_requesters(dev_priv, id)), 1);
if (disabled)
return;
@@ -394,216 +354,85 @@ static void gen9_wait_for_power_well_disable(struct drm_i915_private *dev_priv,
!!(reqs & 1), !!(reqs & 2), !!(reqs & 4), !!(reqs & 8));
}
-static void hsw_set_power_well(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well, bool enable)
+static void gen9_wait_for_power_well_fuses(struct drm_i915_private *dev_priv,
+ enum skl_power_gate pg)
{
- bool is_enabled, enable_requested;
- uint32_t tmp;
+ /* Timeout 5us for PG#0, for other PGs 1us */
+ WARN_ON(intel_wait_for_register(dev_priv, SKL_FUSE_STATUS,
+ SKL_FUSE_PG_DIST_STATUS(pg),
+ SKL_FUSE_PG_DIST_STATUS(pg), 1));
+}
- tmp = I915_READ(HSW_PWR_WELL_DRIVER);
- is_enabled = tmp & HSW_PWR_WELL_STATE_ENABLED;
- enable_requested = tmp & HSW_PWR_WELL_ENABLE_REQUEST;
-
- if (enable) {
- if (!enable_requested)
- I915_WRITE(HSW_PWR_WELL_DRIVER,
- HSW_PWR_WELL_ENABLE_REQUEST);
-
- if (!is_enabled) {
- DRM_DEBUG_KMS("Enabling power well\n");
- if (intel_wait_for_register(dev_priv,
- HSW_PWR_WELL_DRIVER,
- HSW_PWR_WELL_STATE_ENABLED,
- HSW_PWR_WELL_STATE_ENABLED,
- 20))
- DRM_ERROR("Timeout enabling power well\n");
- hsw_power_well_post_enable(dev_priv);
- }
+static void hsw_power_well_enable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ enum i915_power_well_id id = power_well->id;
+ bool wait_fuses = power_well->hsw.has_fuses;
+ enum skl_power_gate pg;
+ u32 val;
- } else {
- if (enable_requested) {
- hsw_power_well_pre_disable(dev_priv);
- I915_WRITE(HSW_PWR_WELL_DRIVER, 0);
- POSTING_READ(HSW_PWR_WELL_DRIVER);
- DRM_DEBUG_KMS("Requesting to disable the power well\n");
- }
+ if (wait_fuses) {
+ pg = SKL_PW_TO_PG(id);
+ /*
+ * For PW1 we have to wait both for the PW0/PG0 fuse state
+ * before enabling the power well and PW1/PG1's own fuse
+ * state after the enabling. For all other power wells with
+ * fuses we only have to wait for that PW/PG's fuse state
+ * after the enabling.
+ */
+ if (pg == SKL_PG1)
+ gen9_wait_for_power_well_fuses(dev_priv, SKL_PG0);
}
+
+ val = I915_READ(HSW_PWR_WELL_CTL_DRIVER(id));
+ I915_WRITE(HSW_PWR_WELL_CTL_DRIVER(id), val | HSW_PWR_WELL_CTL_REQ(id));
+ hsw_wait_for_power_well_enable(dev_priv, power_well);
+
+ if (wait_fuses)
+ gen9_wait_for_power_well_fuses(dev_priv, pg);
+
+ hsw_power_well_post_enable(dev_priv, power_well->hsw.irq_pipe_mask,
+ power_well->hsw.has_vga);
}
-#define SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_AUX_D) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
- SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- BIT_ULL(POWER_DOMAIN_MODESET) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
+static void hsw_power_well_disable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ enum i915_power_well_id id = power_well->id;
+ u32 val;
-#define BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_GMBUS) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define BXT_DISPLAY_DC_OFF_POWER_DOMAINS ( \
- BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- BIT_ULL(POWER_DOMAIN_MODESET) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define BXT_DPIO_CMN_A_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define BXT_DPIO_CMN_BC_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_INIT))
+ hsw_power_well_pre_disable(dev_priv, power_well->hsw.irq_pipe_mask);
-#define GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO))
-#define GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO))
-#define GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO))
-#define GLK_DPIO_CMN_A_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DPIO_CMN_B_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DPIO_CMN_C_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DISPLAY_AUX_A_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DISPLAY_AUX_B_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DISPLAY_AUX_C_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define GLK_DISPLAY_DC_OFF_POWER_DOMAINS ( \
- GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- BIT_ULL(POWER_DOMAIN_MODESET) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
+ val = I915_READ(HSW_PWR_WELL_CTL_DRIVER(id));
+ I915_WRITE(HSW_PWR_WELL_CTL_DRIVER(id),
+ val & ~HSW_PWR_WELL_CTL_REQ(id));
+ hsw_wait_for_power_well_disable(dev_priv, power_well);
+}
-#define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_AUX_D) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_AUX_A_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_AUX_B_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_B) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_AUX_C_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_C) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_AUX_D_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_AUX_D) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-#define CNL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
- CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- BIT_ULL(POWER_DOMAIN_MODESET) | \
- BIT_ULL(POWER_DOMAIN_AUX_A) | \
- BIT_ULL(POWER_DOMAIN_INIT))
+/*
+ * We should only use the power well if we explicitly asked the hardware to
+ * enable it, so check if it's enabled and also check if we've requested it to
+ * be enabled.
+ */
+static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ enum i915_power_well_id id = power_well->id;
+ u32 mask = HSW_PWR_WELL_CTL_REQ(id) | HSW_PWR_WELL_CTL_STATE(id);
+
+ return (I915_READ(HSW_PWR_WELL_CTL_DRIVER(id)) & mask) == mask;
+}
static void assert_can_enable_dc9(struct drm_i915_private *dev_priv)
{
+ enum i915_power_well_id id = SKL_DISP_PW_2;
+
WARN_ONCE((I915_READ(DC_STATE_EN) & DC_STATE_EN_DC9),
"DC9 already programmed to be enabled.\n");
WARN_ONCE(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5,
"DC5 still not disabled to enable DC9.\n");
- WARN_ONCE(I915_READ(HSW_PWR_WELL_DRIVER) &
- SKL_POWER_WELL_REQ(SKL_DISP_PW_2),
+ WARN_ONCE(I915_READ(HSW_PWR_WELL_CTL_DRIVER(id)) &
+ HSW_PWR_WELL_CTL_REQ(id),
"Power well 2 on.\n");
WARN_ONCE(intel_irqs_enabled(dev_priv),
"Interrupts not disabled yet.\n");
@@ -799,181 +628,39 @@ void skl_disable_dc6(struct drm_i915_private *dev_priv)
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
}
-static void skl_set_power_well(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well, bool enable)
-{
- uint32_t tmp, fuse_status;
- uint32_t req_mask, state_mask;
- bool is_enabled, enable_requested, check_fuse_status = false;
-
- tmp = I915_READ(HSW_PWR_WELL_DRIVER);
- fuse_status = I915_READ(SKL_FUSE_STATUS);
-
- switch (power_well->id) {
- case SKL_DISP_PW_1:
- if (intel_wait_for_register(dev_priv,
- SKL_FUSE_STATUS,
- SKL_FUSE_PG0_DIST_STATUS,
- SKL_FUSE_PG0_DIST_STATUS,
- 1)) {
- DRM_ERROR("PG0 not enabled\n");
- return;
- }
- break;
- case SKL_DISP_PW_2:
- if (!(fuse_status & SKL_FUSE_PG1_DIST_STATUS)) {
- DRM_ERROR("PG1 in disabled state\n");
- return;
- }
- break;
- case SKL_DISP_PW_MISC_IO:
- case SKL_DISP_PW_DDI_A_E: /* GLK_DISP_PW_DDI_A, CNL_DISP_PW_DDI_A */
- case SKL_DISP_PW_DDI_B:
- case SKL_DISP_PW_DDI_C:
- case SKL_DISP_PW_DDI_D:
- case GLK_DISP_PW_AUX_A: /* CNL_DISP_PW_AUX_A */
- case GLK_DISP_PW_AUX_B: /* CNL_DISP_PW_AUX_B */
- case GLK_DISP_PW_AUX_C: /* CNL_DISP_PW_AUX_C */
- case CNL_DISP_PW_AUX_D:
- break;
- default:
- WARN(1, "Unknown power well %lu\n", power_well->id);
- return;
- }
-
- req_mask = SKL_POWER_WELL_REQ(power_well->id);
- enable_requested = tmp & req_mask;
- state_mask = SKL_POWER_WELL_STATE(power_well->id);
- is_enabled = tmp & state_mask;
-
- if (!enable && enable_requested)
- skl_power_well_pre_disable(dev_priv, power_well);
-
- if (enable) {
- if (!enable_requested) {
- WARN((tmp & state_mask) &&
- !I915_READ(HSW_PWR_WELL_BIOS),
- "Invalid for power well status to be enabled, unless done by the BIOS, \
- when request is to disable!\n");
- I915_WRITE(HSW_PWR_WELL_DRIVER, tmp | req_mask);
- }
-
- if (!is_enabled) {
- DRM_DEBUG_KMS("Enabling %s\n", power_well->name);
- check_fuse_status = true;
- }
-
- gen9_wait_for_power_well_enable(dev_priv, power_well);
- } else {
- if (enable_requested) {
- I915_WRITE(HSW_PWR_WELL_DRIVER, tmp & ~req_mask);
- POSTING_READ(HSW_PWR_WELL_DRIVER);
- DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
- }
-
- gen9_wait_for_power_well_disable(dev_priv, power_well);
- }
-
- if (check_fuse_status) {
- if (power_well->id == SKL_DISP_PW_1) {
- if (intel_wait_for_register(dev_priv,
- SKL_FUSE_STATUS,
- SKL_FUSE_PG1_DIST_STATUS,
- SKL_FUSE_PG1_DIST_STATUS,
- 1))
- DRM_ERROR("PG1 distributing status timeout\n");
- } else if (power_well->id == SKL_DISP_PW_2) {
- if (intel_wait_for_register(dev_priv,
- SKL_FUSE_STATUS,
- SKL_FUSE_PG2_DIST_STATUS,
- SKL_FUSE_PG2_DIST_STATUS,
- 1))
- DRM_ERROR("PG2 distributing status timeout\n");
- }
- }
-
- if (enable && !is_enabled)
- skl_power_well_post_enable(dev_priv, power_well);
-}
-
static void hsw_power_well_sync_hw(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- /* Take over the request bit if set by BIOS. */
- if (I915_READ(HSW_PWR_WELL_BIOS) & HSW_PWR_WELL_ENABLE_REQUEST) {
- if (!(I915_READ(HSW_PWR_WELL_DRIVER) &
- HSW_PWR_WELL_ENABLE_REQUEST))
- I915_WRITE(HSW_PWR_WELL_DRIVER,
- HSW_PWR_WELL_ENABLE_REQUEST);
- I915_WRITE(HSW_PWR_WELL_BIOS, 0);
- }
-}
-
-static void hsw_power_well_enable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- hsw_set_power_well(dev_priv, power_well, true);
-}
-
-static void hsw_power_well_disable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- hsw_set_power_well(dev_priv, power_well, false);
-}
-
-static bool skl_power_well_enabled(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- uint32_t mask = SKL_POWER_WELL_REQ(power_well->id) |
- SKL_POWER_WELL_STATE(power_well->id);
-
- return (I915_READ(HSW_PWR_WELL_DRIVER) & mask) == mask;
-}
-
-static void skl_power_well_sync_hw(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- uint32_t mask = SKL_POWER_WELL_REQ(power_well->id);
- uint32_t bios_req = I915_READ(HSW_PWR_WELL_BIOS);
+ enum i915_power_well_id id = power_well->id;
+ u32 mask = HSW_PWR_WELL_CTL_REQ(id);
+ u32 bios_req = I915_READ(HSW_PWR_WELL_CTL_BIOS(id));
/* Take over the request bit if set by BIOS. */
if (bios_req & mask) {
- uint32_t drv_req = I915_READ(HSW_PWR_WELL_DRIVER);
+ u32 drv_req = I915_READ(HSW_PWR_WELL_CTL_DRIVER(id));
if (!(drv_req & mask))
- I915_WRITE(HSW_PWR_WELL_DRIVER, drv_req | mask);
- I915_WRITE(HSW_PWR_WELL_BIOS, bios_req & ~mask);
+ I915_WRITE(HSW_PWR_WELL_CTL_DRIVER(id), drv_req | mask);
+ I915_WRITE(HSW_PWR_WELL_CTL_BIOS(id), bios_req & ~mask);
}
}
-static void skl_power_well_enable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- skl_set_power_well(dev_priv, power_well, true);
-}
-
-static void skl_power_well_disable(struct drm_i915_private *dev_priv,
- struct i915_power_well *power_well)
-{
- skl_set_power_well(dev_priv, power_well, false);
-}
-
static void bxt_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- bxt_ddi_phy_init(dev_priv, power_well->data);
+ bxt_ddi_phy_init(dev_priv, power_well->bxt.phy);
}
static void bxt_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- bxt_ddi_phy_uninit(dev_priv, power_well->data);
+ bxt_ddi_phy_uninit(dev_priv, power_well->bxt.phy);
}
static bool bxt_dpio_cmn_power_well_enabled(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- return bxt_ddi_phy_is_enabled(dev_priv, power_well->data);
+ return bxt_ddi_phy_is_enabled(dev_priv, power_well->bxt.phy);
}
static void bxt_verify_ddi_phy_power_wells(struct drm_i915_private *dev_priv)
@@ -982,16 +669,16 @@ static void bxt_verify_ddi_phy_power_wells(struct drm_i915_private *dev_priv)
power_well = lookup_power_well(dev_priv, BXT_DPIO_CMN_A);
if (power_well->count > 0)
- bxt_ddi_phy_verify_state(dev_priv, power_well->data);
+ bxt_ddi_phy_verify_state(dev_priv, power_well->bxt.phy);
power_well = lookup_power_well(dev_priv, BXT_DPIO_CMN_BC);
if (power_well->count > 0)
- bxt_ddi_phy_verify_state(dev_priv, power_well->data);
+ bxt_ddi_phy_verify_state(dev_priv, power_well->bxt.phy);
if (IS_GEMINILAKE(dev_priv)) {
power_well = lookup_power_well(dev_priv, GLK_DPIO_CMN_C);
if (power_well->count > 0)
- bxt_ddi_phy_verify_state(dev_priv, power_well->data);
+ bxt_ddi_phy_verify_state(dev_priv, power_well->bxt.phy);
}
}
@@ -1089,7 +776,7 @@ static void i830_pipes_power_well_sync_hw(struct drm_i915_private *dev_priv,
static void vlv_set_power_well(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well, bool enable)
{
- enum punit_power_well power_well_id = power_well->id;
+ enum i915_power_well_id power_well_id = power_well->id;
u32 mask;
u32 state;
u32 ctrl;
@@ -1137,7 +824,7 @@ static void vlv_power_well_disable(struct drm_i915_private *dev_priv,
static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- int power_well_id = power_well->id;
+ enum i915_power_well_id power_well_id = power_well->id;
bool enabled = false;
u32 mask;
u32 state;
@@ -1324,8 +1011,9 @@ static void vlv_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
#define POWER_DOMAIN_MASK (GENMASK_ULL(POWER_DOMAIN_NUM - 1, 0))
-static struct i915_power_well *lookup_power_well(struct drm_i915_private *dev_priv,
- int power_well_id)
+static struct i915_power_well *
+lookup_power_well(struct drm_i915_private *dev_priv,
+ enum i915_power_well_id power_well_id)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
int i;
@@ -1672,7 +1360,7 @@ void chv_phy_powergate_lanes(struct intel_encoder *encoder,
static bool chv_pipe_power_well_enabled(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- enum pipe pipe = power_well->id;
+ enum pipe pipe = PIPE_A;
bool enabled;
u32 state, ctrl;
@@ -1702,7 +1390,7 @@ static void chv_set_pipe_power_well(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well,
bool enable)
{
- enum pipe pipe = power_well->id;
+ enum pipe pipe = PIPE_A;
u32 state;
u32 ctrl;
@@ -1735,7 +1423,7 @@ out:
static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- WARN_ON_ONCE(power_well->id != PIPE_A);
+ WARN_ON_ONCE(power_well->id != CHV_DISP_PW_PIPE_A);
chv_set_pipe_power_well(dev_priv, power_well, true);
@@ -1745,7 +1433,7 @@ static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
- WARN_ON_ONCE(power_well->id != PIPE_A);
+ WARN_ON_ONCE(power_well->id != CHV_DISP_PW_PIPE_A);
vlv_display_power_well_deinit(dev_priv);
@@ -1861,37 +1549,13 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
intel_runtime_pm_put(dev_priv);
}
-#define HSW_DISPLAY_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
- BIT_ULL(POWER_DOMAIN_INIT))
-
-#define BDW_DISPLAY_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
- BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
- BIT_ULL(POWER_DOMAIN_VGA) | \
- BIT_ULL(POWER_DOMAIN_AUDIO) | \
+#define I830_PIPES_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PIPE_A) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
BIT_ULL(POWER_DOMAIN_INIT))
#define VLV_DISPLAY_POWER_DOMAINS ( \
@@ -1974,13 +1638,201 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
BIT_ULL(POWER_DOMAIN_AUX_D) | \
BIT_ULL(POWER_DOMAIN_INIT))
-#define I830_PIPES_POWER_DOMAINS ( \
- BIT_ULL(POWER_DOMAIN_PIPE_A) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B) | \
- BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
- BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+#define HSW_DISPLAY_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+
+#define BDW_DISPLAY_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+
+#define SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_AUX_D) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define SKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT_ULL(POWER_DOMAIN_MODESET) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+
+#define BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_GMBUS) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define BXT_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT_ULL(POWER_DOMAIN_MODESET) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define BXT_DPIO_CMN_A_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define BXT_DPIO_CMN_BC_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+
+#define GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO))
+#define GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO))
+#define GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO))
+#define GLK_DPIO_CMN_A_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DPIO_CMN_B_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DPIO_CMN_C_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DISPLAY_AUX_A_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DISPLAY_AUX_B_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DISPLAY_AUX_C_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define GLK_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT_ULL(POWER_DOMAIN_MODESET) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+
+#define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C) | \
+ BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_AUX_D) | \
+ BIT_ULL(POWER_DOMAIN_AUDIO) | \
+ BIT_ULL(POWER_DOMAIN_VGA) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_AUX_A_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_AUX_B_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_B) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_AUX_C_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_C) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_AUX_D_POWER_DOMAINS ( \
+ BIT_ULL(POWER_DOMAIN_AUX_D) | \
+ BIT_ULL(POWER_DOMAIN_INIT))
+#define CNL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT_ULL(POWER_DOMAIN_MODESET) | \
+ BIT_ULL(POWER_DOMAIN_AUX_A) | \
BIT_ULL(POWER_DOMAIN_INIT))
static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
@@ -2010,6 +1862,7 @@ static struct i915_power_well i9xx_always_on_power_well[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
};
@@ -2026,11 +1879,13 @@ static struct i915_power_well i830_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "pipes",
.domains = I830_PIPES_POWER_DOMAINS,
.ops = &i830_pipes_power_well_ops,
+ .id = I830_DISP_PW_PIPES,
},
};
@@ -2041,13 +1896,6 @@ static const struct i915_power_well_ops hsw_power_well_ops = {
.is_enabled = hsw_power_well_enabled,
};
-static const struct i915_power_well_ops skl_power_well_ops = {
- .sync_hw = skl_power_well_sync_hw,
- .enable = skl_power_well_enable,
- .disable = skl_power_well_disable,
- .is_enabled = skl_power_well_enabled,
-};
-
static const struct i915_power_well_ops gen9_dc_off_power_well_ops = {
.sync_hw = i9xx_power_well_sync_hw_noop,
.enable = gen9_dc_off_power_well_enable,
@@ -2068,11 +1916,16 @@ static struct i915_power_well hsw_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "display",
.domains = HSW_DISPLAY_POWER_DOMAINS,
.ops = &hsw_power_well_ops,
+ .id = HSW_DISP_PW_GLOBAL,
+ {
+ .hsw.has_vga = true,
+ },
},
};
@@ -2082,11 +1935,17 @@ static struct i915_power_well bdw_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "display",
.domains = BDW_DISPLAY_POWER_DOMAINS,
.ops = &hsw_power_well_ops,
+ .id = HSW_DISP_PW_GLOBAL,
+ {
+ .hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
+ .hsw.has_vga = true,
+ },
},
};
@@ -2117,7 +1976,7 @@ static struct i915_power_well vlv_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
- .id = PUNIT_POWER_WELL_ALWAYS_ON,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "display",
@@ -2175,6 +2034,7 @@ static struct i915_power_well chv_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "display",
@@ -2184,7 +2044,7 @@ static struct i915_power_well chv_power_wells[] = {
* required for any pipe to work.
*/
.domains = CHV_DISPLAY_POWER_DOMAINS,
- .id = PIPE_A,
+ .id = CHV_DISP_PW_PIPE_A,
.ops = &chv_pipe_power_well_ops,
},
{
@@ -2202,7 +2062,7 @@ static struct i915_power_well chv_power_wells[] = {
};
bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
- int power_well_id)
+ enum i915_power_well_id power_well_id)
{
struct i915_power_well *power_well;
bool ret;
@@ -2219,20 +2079,23 @@ static struct i915_power_well skl_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
- .id = SKL_DISP_PW_ALWAYS_ON,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "power well 1",
/* Handled by the DMC firmware */
.domains = 0,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
+ {
+ .hsw.has_fuses = true,
+ },
},
{
.name = "MISC IO power well",
/* Handled by the DMC firmware */
.domains = 0,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_MISC_IO,
},
{
@@ -2244,31 +2107,36 @@ static struct i915_power_well skl_power_wells[] = {
{
.name = "power well 2",
.domains = SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_2,
+ {
+ .hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
+ .hsw.has_vga = true,
+ .hsw.has_fuses = true,
+ },
},
{
.name = "DDI A/E IO power well",
.domains = SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_A_E,
},
{
.name = "DDI B IO power well",
.domains = SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_B,
},
{
.name = "DDI C IO power well",
.domains = SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_C,
},
{
.name = "DDI D IO power well",
.domains = SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_D,
},
};
@@ -2279,12 +2147,16 @@ static struct i915_power_well bxt_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "power well 1",
.domains = 0,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
+ {
+ .hsw.has_fuses = true,
+ },
},
{
.name = "DC off",
@@ -2295,22 +2167,31 @@ static struct i915_power_well bxt_power_wells[] = {
{
.name = "power well 2",
.domains = BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_2,
+ {
+ .hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
+ .hsw.has_vga = true,
+ .hsw.has_fuses = true,
+ },
},
{
.name = "dpio-common-a",
.domains = BXT_DPIO_CMN_A_POWER_DOMAINS,
.ops = &bxt_dpio_cmn_power_well_ops,
.id = BXT_DPIO_CMN_A,
- .data = DPIO_PHY1,
+ {
+ .bxt.phy = DPIO_PHY1,
+ },
},
{
.name = "dpio-common-bc",
.domains = BXT_DPIO_CMN_BC_POWER_DOMAINS,
.ops = &bxt_dpio_cmn_power_well_ops,
.id = BXT_DPIO_CMN_BC,
- .data = DPIO_PHY0,
+ {
+ .bxt.phy = DPIO_PHY0,
+ },
},
};
@@ -2320,13 +2201,17 @@ static struct i915_power_well glk_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "power well 1",
/* Handled by the DMC firmware */
.domains = 0,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
+ {
+ .hsw.has_fuses = true,
+ },
},
{
.name = "DC off",
@@ -2337,64 +2222,75 @@ static struct i915_power_well glk_power_wells[] = {
{
.name = "power well 2",
.domains = GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_2,
+ {
+ .hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
+ .hsw.has_vga = true,
+ .hsw.has_fuses = true,
+ },
},
{
.name = "dpio-common-a",
.domains = GLK_DPIO_CMN_A_POWER_DOMAINS,
.ops = &bxt_dpio_cmn_power_well_ops,
.id = BXT_DPIO_CMN_A,
- .data = DPIO_PHY1,
+ {
+ .bxt.phy = DPIO_PHY1,
+ },
},
{
.name = "dpio-common-b",
.domains = GLK_DPIO_CMN_B_POWER_DOMAINS,
.ops = &bxt_dpio_cmn_power_well_ops,
.id = BXT_DPIO_CMN_BC,
- .data = DPIO_PHY0,
+ {
+ .bxt.phy = DPIO_PHY0,
+ },
},
{
.name = "dpio-common-c",
.domains = GLK_DPIO_CMN_C_POWER_DOMAINS,
.ops = &bxt_dpio_cmn_power_well_ops,
.id = GLK_DPIO_CMN_C,
- .data = DPIO_PHY2,
+ {
+ .bxt.phy = DPIO_PHY2,
+ },
},
{
.name = "AUX A",
.domains = GLK_DISPLAY_AUX_A_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = GLK_DISP_PW_AUX_A,
},
{
.name = "AUX B",
.domains = GLK_DISPLAY_AUX_B_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = GLK_DISP_PW_AUX_B,
},
{
.name = "AUX C",
.domains = GLK_DISPLAY_AUX_C_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = GLK_DISP_PW_AUX_C,
},
{
.name = "DDI A IO power well",
.domains = GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = GLK_DISP_PW_DDI_A,
},
{
.name = "DDI B IO power well",
.domains = GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_B,
},
{
.name = "DDI C IO power well",
.domains = GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_C,
},
};
@@ -2405,36 +2301,40 @@ static struct i915_power_well cnl_power_wells[] = {
.always_on = 1,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
+ .id = I915_DISP_PW_ALWAYS_ON,
},
{
.name = "power well 1",
/* Handled by the DMC firmware */
.domains = 0,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
+ {
+ .hsw.has_fuses = true,
+ },
},
{
.name = "AUX A",
.domains = CNL_DISPLAY_AUX_A_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = CNL_DISP_PW_AUX_A,
},
{
.name = "AUX B",
.domains = CNL_DISPLAY_AUX_B_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = CNL_DISP_PW_AUX_B,
},
{
.name = "AUX C",
.domains = CNL_DISPLAY_AUX_C_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = CNL_DISP_PW_AUX_C,
},
{
.name = "AUX D",
.domains = CNL_DISPLAY_AUX_D_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = CNL_DISP_PW_AUX_D,
},
{
@@ -2446,31 +2346,36 @@ static struct i915_power_well cnl_power_wells[] = {
{
.name = "power well 2",
.domains = CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_2,
+ {
+ .hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
+ .hsw.has_vga = true,
+ .hsw.has_fuses = true,
+ },
},
{
.name = "DDI A IO power well",
.domains = CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = CNL_DISP_PW_DDI_A,
},
{
.name = "DDI B IO power well",
.domains = CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_B,
},
{
.name = "DDI C IO power well",
.domains = CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_C,
},
{
.name = "DDI D IO power well",
.domains = CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS,
- .ops = &skl_power_well_ops,
+ .ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_DDI_D,
},
};
@@ -2534,6 +2439,22 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
return mask;
}
+static void assert_power_well_ids_unique(struct drm_i915_private *dev_priv)
+{
+ struct i915_power_domains *power_domains = &dev_priv->power_domains;
+ u64 power_well_ids;
+ int i;
+
+ power_well_ids = 0;
+ for (i = 0; i < power_domains->power_well_count; i++) {
+ enum i915_power_well_id id = power_domains->power_wells[i].id;
+
+ WARN_ON(id >= sizeof(power_well_ids) * 8);
+ WARN_ON(power_well_ids & BIT_ULL(id));
+ power_well_ids |= BIT_ULL(id);
+ }
+}
+
#define set_power_wells(power_domains, __power_wells) ({ \
(power_domains)->power_wells = (__power_wells); \
(power_domains)->power_well_count = ARRAY_SIZE(__power_wells); \
@@ -2585,6 +2506,8 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv)
set_power_wells(power_domains, i9xx_always_on_power_well);
}
+ assert_power_well_ids_unique(dev_priv);
+
return 0;
}
@@ -2820,7 +2743,7 @@ static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume
/* 2. Enable Comp */
val = I915_READ(CHICKEN_MISC_2);
- val &= ~COMP_PWR_DOWN;
+ val &= ~CNL_COMP_PWR_DOWN;
I915_WRITE(CHICKEN_MISC_2, val);
val = I915_READ(CNL_PORT_COMP_DW3);
@@ -2894,7 +2817,7 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv)
/* 5. Disable Comp */
val = I915_READ(CHICKEN_MISC_2);
- val |= COMP_PWR_DOWN;
+ val |= CNL_COMP_PWR_DOWN;
I915_WRITE(CHICKEN_MISC_2, val);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 20:33:20 +0000