drm/i915/hsw+: Add has_fuses power well attribute
The pattern of a power well backing a set of fuses whose initialization
we need to wait for during power well enabling is common to all GEN9+
platforms. Adding support for this to the HSW power well enable helper
allows us to use the HSW/BDW power well code for GEN9+ as well in a
follow-up patch.
v2:
- Use an enum for power gates instead of raw numbers. (Ville)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170711204236.5618-6-imre.deak@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d7241a2..c83f109 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8023,11 +8023,17 @@ enum {
#define HSW_PWR_WELL_CTL6 _MMIO(0x45414)
/* SKL Fuse Status */
+enum skl_power_gate {
+ SKL_PG0,
+ SKL_PG1,
+ SKL_PG2,
+};
+
#define SKL_FUSE_STATUS _MMIO(0x42000)
-#define SKL_FUSE_DOWNLOAD_STATUS (1<<31)
-#define SKL_FUSE_PG0_DIST_STATUS (1<<27)
-#define SKL_FUSE_PG1_DIST_STATUS (1<<26)
-#define SKL_FUSE_PG2_DIST_STATUS (1<<25)
+#define SKL_FUSE_DOWNLOAD_STATUS (1<<31)
+/* PG0 (HW control->no power well ID), PG1..PG2 (SKL_DISP_PW1..SKL_DISP_PW2) */
+#define SKL_PW_TO_PG(pw) ((pw) - SKL_DISP_PW_1 + SKL_PG1)
+#define SKL_FUSE_PG_DIST_STATUS(pg) (1 << (27 - (pg)))
/* Per-pipe DDI Function Control */
#define _TRANS_DDI_FUNC_CTL_A 0x60400
