From 0e442c60dd39ac6924b11a20497734bd2303744c Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 19 Oct 2009 10:09:33 +0900 Subject: drm/i915: add FIFO watermark support for G4x Turns out G4x needs to have sensible watermarks set, especially for self-refresh enabled modes. Add support for it. Signed-off-by: Jesse Barnes Tested-by: Dirk Hohndel Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_reg.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_reg.h') diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 78f336e0083..1687edf6879 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1799,17 +1799,29 @@ #define DSPARB_AEND_SHIFT 0 #define DSPFW1 0x70034 +#define DSPFW_SR_SHIFT 23 +#define DSPFW_CURSORB_SHIFT 16 +#define DSPFW_PLANEB_SHIFT 8 #define DSPFW2 0x70038 +#define DSPFW_CURSORA_MASK 0x00003f00 +#define DSPFW_CURSORA_SHIFT 16 #define DSPFW3 0x7003c +#define DSPFW_HPLL_SR_EN (1<<31) +#define DSPFW_CURSOR_SR_SHIFT 24 #define IGD_SELF_REFRESH_EN (1<<30) /* FIFO watermark sizes etc */ +#define G4X_FIFO_LINE_SIZE 64 #define I915_FIFO_LINE_SIZE 64 #define I830_FIFO_LINE_SIZE 32 + +#define G4X_FIFO_SIZE 127 #define I945_FIFO_SIZE 127 /* 945 & 965 */ #define I915_FIFO_SIZE 95 #define I855GM_FIFO_SIZE 127 /* In cachelines */ #define I830_FIFO_SIZE 95 + +#define G4X_MAX_WM 0x3f #define I915_MAX_WM 0x3f #define IGD_DISPLAY_FIFO 512 /* in 64byte unit */ -- cgit v1.2.3