From 1abc4dc7e2ca7886b6b06bcf2ff1451702c83f9b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Thu, 26 Jun 2014 17:02:37 +0300 Subject: [PATCH] drm/i915: Parametrize VLV_DDL registers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The VLV/CHV DDL registers are uniform, and neatly enough the register offsets are sane so we can easily unify them to a single set of defines and just pass the pipe as the parameter to compute the register offset. Note that we now fill out the drain latency for pipe C on CHV which we didn't do before. The rest of the pipe C watermarks are still untouched but that will be remedied later by adding a proper cherryview_update_wm() function. v2: Add a note about CHV pipe C changes (Paulo) Reviewed-by: Paulo Zanoni Signed-off-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 54 ++++++++------------------------- drivers/gpu/drm/i915/intel_pm.c | 44 ++++++++++++--------------- 2 files changed, 32 insertions(+), 66 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index a87eb18b4c90..fbdb08f4cd76 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3999,47 +3999,19 @@ enum punit_power_well { /* drain latency register values*/ #define DRAIN_LATENCY_PRECISION_32 32 #define DRAIN_LATENCY_PRECISION_64 64 -#define VLV_DDL1 (VLV_DISPLAY_BASE + 0x70050) -#define DDL_CURSORA_PRECISION_64 (1<<31) -#define DDL_CURSORA_PRECISION_32 (0<<31) -#define DDL_CURSORA_SHIFT 24 -#define DDL_SPRITEB_PRECISION_64 (1<<23) -#define DDL_SPRITEB_PRECISION_32 (0<<23) -#define DDL_SPRITEB_SHIFT 16 -#define DDL_SPRITEA_PRECISION_64 (1<<15) -#define DDL_SPRITEA_PRECISION_32 (0<<15) -#define DDL_SPRITEA_SHIFT 8 -#define DDL_PLANEA_PRECISION_64 (1<<7) -#define DDL_PLANEA_PRECISION_32 (0<<7) -#define DDL_PLANEA_SHIFT 0 - -#define VLV_DDL2 (VLV_DISPLAY_BASE + 0x70054) -#define DDL_CURSORB_PRECISION_64 (1<<31) -#define DDL_CURSORB_PRECISION_32 (0<<31) -#define DDL_CURSORB_SHIFT 24 -#define DDL_SPRITED_PRECISION_64 (1<<23) -#define DDL_SPRITED_PRECISION_32 (0<<23) -#define DDL_SPRITED_SHIFT 16 -#define DDL_SPRITEC_PRECISION_64 (1<<15) -#define DDL_SPRITEC_PRECISION_32 (0<<15) -#define DDL_SPRITEC_SHIFT 8 -#define DDL_PLANEB_PRECISION_64 (1<<7) -#define DDL_PLANEB_PRECISION_32 (0<<7) -#define DDL_PLANEB_SHIFT 0 - -#define VLV_DDL3 (VLV_DISPLAY_BASE + 0x70058) -#define DDL_CURSORC_PRECISION_64 (1<<31) -#define DDL_CURSORC_PRECISION_32 (0<<31) -#define DDL_CURSORC_SHIFT 24 -#define DDL_SPRITEF_PRECISION_64 (1<<23) -#define DDL_SPRITEF_PRECISION_32 (0<<23) -#define DDL_SPRITEF_SHIFT 16 -#define DDL_SPRITEE_PRECISION_64 (1<<15) -#define DDL_SPRITEE_PRECISION_32 (0<<15) -#define DDL_SPRITEE_SHIFT 8 -#define DDL_PLANEC_PRECISION_64 (1<<7) -#define DDL_PLANEC_PRECISION_32 (0<<7) -#define DDL_PLANEC_SHIFT 0 +#define VLV_DDL(pipe) (VLV_DISPLAY_BASE + 0x70050 + 4 * (pipe)) +#define DDL_CURSOR_PRECISION_64 (1<<31) +#define DDL_CURSOR_PRECISION_32 (0<<31) +#define DDL_CURSOR_SHIFT 24 +#define DDL_SPRITE1_PRECISION_64 (1<<23) +#define DDL_SPRITE1_PRECISION_32 (0<<23) +#define DDL_SPRITE1_SHIFT 16 +#define DDL_SPRITE0_PRECISION_64 (1<<15) +#define DDL_SPRITE0_PRECISION_32 (0<<15) +#define DDL_SPRITE0_SHIFT 8 +#define DDL_PLANE_PRECISION_64 (1<<7) +#define DDL_PLANE_PRECISION_32 (0<<7) +#define DDL_PLANE_SHIFT 0 /* FIFO watermark sizes etc */ #define G4X_FIFO_LINE_SIZE 64 diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0f9164d854de..2573c6967559 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -1313,35 +1313,29 @@ static bool vlv_compute_drain_latency(struct drm_device *dev, static void vlv_update_drain_latency(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - int planea_prec, planea_dl, planeb_prec, planeb_dl; - int cursora_prec, cursora_dl, cursorb_prec, cursorb_dl; - int plane_prec_mult, cursor_prec_mult; /* Precision multiplier is - either 16 or 32 */ + enum pipe pipe; - /* For plane A, Cursor A */ - if (vlv_compute_drain_latency(dev, 0, &plane_prec_mult, &planea_dl, - &cursor_prec_mult, &cursora_dl)) { - cursora_prec = (cursor_prec_mult == DRAIN_LATENCY_PRECISION_32) ? - DDL_CURSORA_PRECISION_32 : DDL_CURSORA_PRECISION_64; - planea_prec = (plane_prec_mult == DRAIN_LATENCY_PRECISION_32) ? - DDL_PLANEA_PRECISION_32 : DDL_PLANEA_PRECISION_64; + for_each_pipe(pipe) { + int plane_prec, plane_dl; + int cursor_prec, cursor_dl; + int plane_prec_mult, cursor_prec_mult; - I915_WRITE(VLV_DDL1, cursora_prec | - (cursora_dl << DDL_CURSORA_SHIFT) | - planea_prec | planea_dl); - } + if (!vlv_compute_drain_latency(dev, pipe, &plane_prec_mult, &plane_dl, + &cursor_prec_mult, &cursor_dl)) + continue; - /* For plane B, Cursor B */ - if (vlv_compute_drain_latency(dev, 1, &plane_prec_mult, &planeb_dl, - &cursor_prec_mult, &cursorb_dl)) { - cursorb_prec = (cursor_prec_mult == DRAIN_LATENCY_PRECISION_32) ? - DDL_CURSORB_PRECISION_32 : DDL_CURSORB_PRECISION_64; - planeb_prec = (plane_prec_mult == DRAIN_LATENCY_PRECISION_32) ? - DDL_PLANEB_PRECISION_32 : DDL_PLANEB_PRECISION_64; + /* + * FIXME CHV spec still lists 16 and 32 as the precision + * values. Need to figure out if spec is outdated or what. + */ + cursor_prec = (cursor_prec_mult == DRAIN_LATENCY_PRECISION_64) ? + DDL_CURSOR_PRECISION_64 : DDL_CURSOR_PRECISION_32; + plane_prec = (plane_prec_mult == DRAIN_LATENCY_PRECISION_64) ? + DDL_PLANE_PRECISION_64 : DDL_PLANE_PRECISION_32; - I915_WRITE(VLV_DDL2, cursorb_prec | - (cursorb_dl << DDL_CURSORB_SHIFT) | - planeb_prec | planeb_dl); + I915_WRITE(VLV_DDL(pipe), cursor_prec | + (cursor_dl << DDL_CURSOR_SHIFT) | + plane_prec | (plane_dl << DDL_PLANE_SHIFT)); } }