#define DP_SSS_RESET(pipe) _DP_SSS(0x2, (pipe))
#define DP_SSS_PWR_GATE(pipe) _DP_SSS(0x3, (pipe))
-/* See the PUNIT HAS v0.8 for the below bits */
-enum punit_power_well {
- /* These numbers are fixed and must match the position of the pw bits */
+/**
+ * i915_power_well_id:
+ *
+ * Platform specific IDs used to look up power wells and - except for custom
+ * power wells - to define request/status register flag bit positions. As such
+ * the set of IDs on a given platform must be unique and except for custom
+ * power wells their value must stay fixed.
+ */
+enum i915_power_well_id {
+ /*
+ * VLV/CHV
+ * - PUNIT_REG_PWRGT_CTRL (bit: id*2),
+ * PUNIT_REG_PWRGT_STATUS (bit: id*2) (PUNIT HAS v0.8)
+ */
PUNIT_POWER_WELL_RENDER = 0,
PUNIT_POWER_WELL_MEDIA = 1,
PUNIT_POWER_WELL_DISP2D = 3,
/* - custom power well */
CHV_DISP_PW_PIPE_A, /* 13 */
- /* Not actual bit groups. Used as IDs for lookup_power_well() */
- PUNIT_POWER_WELL_ALWAYS_ON,
-};
-
-enum skl_disp_power_wells {
- /* These numbers are fixed and must match the position of the pw bits */
- SKL_DISP_PW_MISC_IO,
+ /*
+ * GEN9+
+ * - HSW_PWR_WELL_DRIVER (status bit: id*2, req bit: id*2+1)
+ */
+ SKL_DISP_PW_MISC_IO = 0,
SKL_DISP_PW_DDI_A_E,
GLK_DISP_PW_DDI_A = SKL_DISP_PW_DDI_A_E,
CNL_DISP_PW_DDI_A = SKL_DISP_PW_DDI_A_E,
SKL_DISP_PW_1 = 14,
SKL_DISP_PW_2,
- /* Not actual bit groups. Used as IDs for lookup_power_well() */
- SKL_DISP_PW_ALWAYS_ON,
+ /* - custom power wells */
SKL_DISP_PW_DC_OFF,
-
BXT_DPIO_CMN_A,
BXT_DPIO_CMN_BC,
- GLK_DPIO_CMN_C,
+ GLK_DPIO_CMN_C, /* 19 */
+
+ /*
+ * Multiple platforms.
+ * Must start following the highest ID of any platform.
+ * - custom power wells
+ */
+ I915_DISP_PW_ALWAYS_ON = 20,
};
#define SKL_POWER_WELL_STATE(pw) (1 << ((pw) * 2))
*/
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)
static void gen9_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,
1));
}
-static u32 gen9_power_well_requesters(struct drm_i915_private *dev_priv, int id)
+static u32 gen9_power_well_requesters(struct drm_i915_private *dev_priv,
+ enum i915_power_well_id id)
{
u32 req_mask = SKL_POWER_WELL_REQ(id);
u32 ret;
static void gen9_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;
case CNL_DISP_PW_AUX_D:
break;
default:
- WARN(1, "Unknown power well %lu\n", power_well->id);
+ WARN(1, "Unknown power well %u\n", power_well->id);
return;
}
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;
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;
#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;
.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",
};
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;
.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",