Re: [PATCH 01/28] drm/i915: sprite support for ValleyView

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Fri, Mar 01, 2013 at 01:14:04PM -0800, Jesse Barnes wrote:
> No constant alpha yet though, that needs a new ioctl and/or property to
> get/set.
> 
> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
> ---
>  drivers/gpu/drm/i915/i915_dma.c      |    4 +
>  drivers/gpu/drm/i915/i915_drv.h      |    1 +
>  drivers/gpu/drm/i915/i915_reg.h      |   57 +++++++++
>  drivers/gpu/drm/i915/intel_display.c |   13 ++-
>  drivers/gpu/drm/i915/intel_drv.h     |    3 +-
>  drivers/gpu/drm/i915/intel_sprite.c  |  213 +++++++++++++++++++++++++++++++++-
>  6 files changed, 282 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
> index e16099b..2ba68b0 100644
> --- a/drivers/gpu/drm/i915/i915_dma.c
> +++ b/drivers/gpu/drm/i915/i915_dma.c
> @@ -1637,6 +1637,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
>  	else
>  		dev_priv->num_pipe = 1;
>  
> +	dev_priv->num_plane = 1;
> +	if (IS_VALLEYVIEW(dev))
> +		dev_priv->num_plane = 2;
> +
>  	ret = drm_vblank_init(dev, dev_priv->num_pipe);
>  	if (ret)
>  		goto out_gem_unload;
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index e95337c..48426e1 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -915,6 +915,7 @@ typedef struct drm_i915_private {
>  
>  	int num_pipe;
>  	int num_pch_pll;
> +	int num_plane;
>  
>  	unsigned long cfb_size;
>  	unsigned int cfb_fb;
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index cd226c2..ce3e6f4 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -3237,6 +3237,63 @@
>  #define SPRGAMC(pipe) _PIPE(pipe, _SPRA_GAMC, _SPRB_GAMC)
>  #define SPRSURFLIVE(pipe) _PIPE(pipe, _SPRA_SURFLIVE, _SPRB_SURFLIVE)
>  
> +#define _SPACNTR		0x72180
> +#define   SP_ENABLE			(1<<31)
> +#define   SP_GEAMMA_ENABLE		(1<<30)
> +#define   SP_PIXFORMAT_MASK		(0xf<<26)
> +#define   SP_FORMAT_YUV422		(0<<26)
> +#define   SP_FORMAT_BGR565		(5<<26)
> +#define   SP_FORMAT_BGRX8888		(6<<26)
> +#define   SP_FORMAT_BGRA8888		(7<<26)
> +#define   SP_FORMAT_RGBX1010102		(8<<26)
> +#define   SP_FORMAT_RGBA1010102		(9<<26)
> +#define   SP_FORMAT_RGBX8888		(0xe<<26)
> +#define   SP_FORMAT_RGBA8888		(0xf<<26)
> +#define   SP_SOURCE_KEY			(1<<22)
> +#define   SP_YUV_BYTE_ORDER_MASK	(3<<16)
> +#define   SP_YUV_ORDER_YUYV		(0<<16)
> +#define   SP_YUV_ORDER_UYVY		(1<<16)
> +#define   SP_YUV_ORDER_YVYU		(2<<16)
> +#define   SP_YUV_ORDER_VYUY		(3<<16)
> +#define   SP_TILED			(1<<10)
> +#define _SPALINOFF		0x72184
> +#define _SPASTRIDE		0x72188
> +#define _SPAPOS			0x7218c
> +#define _SPASIZE		0x72190
> +#define _SPAKEYMINVAL		0x72194
> +#define _SPAKEYMSK		0x72198
> +#define _SPASURF		0x7219c
> +#define _SPAKEYMAXVAL		0x721a0
> +#define _SPATILEOFF		0x721a4
> +#define _SPACONSTALPHA		0x721a8
> +#define _SPAGAMC		0x721f4
> +
> +#define _SPBCNTR		0x72280
> +#define _SPBLINOFF		0x72284
> +#define _SPBSTRIDE		0x72288
> +#define _SPBPOS			0x7228c
> +#define _SPBSIZE		0x72290
> +#define _SPBKEYMINVAL		0x72294
> +#define _SPBKEYMSK		0x72298
> +#define _SPBSURF		0x7229c
> +#define _SPBKEYMAXVAL		0x722a0
> +#define _SPBTILEOFF		0x722a4
> +#define _SPBCONSTALPHA		0x722a8
> +#define _SPBGAMC		0x722f4
> +
> +#define SPCNTR(pipe, plane) _PIPE(pipe * 2 + plane, _SPACNTR, _SPBCNTR)
> +#define SPLINOFF(pipe, plane) _PIPE(pipe * 2 + plane, _SPALINOFF, _SPBLINOFF)
> +#define SPSTRIDE(pipe, plane) _PIPE(pipe * 2 + plane, _SPASTRIDE, _SPBSTRIDE)
> +#define SPPOS(pipe, plane) _PIPE(pipe * 2 + plane, _SPAPOS, _SPBPOS)
> +#define SPSIZE(pipe, plane) _PIPE(pipe * 2 + plane, _SPASIZE, _SPBSIZE)
> +#define SPKEYMINVAL(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMINVAL, _SPBKEYMINVAL)
> +#define SPKEYMSK(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMSK, _SPBKEYMSK)
> +#define SPSURF(pipe, plane) _PIPE(pipe * 2 + plane, _SPASURF, _SPBSURF)
> +#define SPKEYMAXVAL(pipe, plane) _PIPE(pipe * 2 + plane, _SPAKEYMAXVAL, _SPBKEYMAXVAL)
> +#define SPTILEOFF(pipe, plane) _PIPE(pipe * 2 + plane, _SPATILEOFF, _SPBTILEOFF)
> +#define SPCONSTALPHA(pipe, plane) _PIPE(pipe * 2 + plane, _SPACONSTALPHA, _SPBCONSTALPHA)
> +#define SPGAMC(pipe, plane) _PIPE(pipe * 2 + plane, _SPAGAMC, _SPBGAMC)
> +
>  /* VBIOS regs */
>  #define VGACNTRL		0x71400
>  # define VGA_DISP_DISABLE			(1 << 31)
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 9b0cd86..5baf850 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -8511,6 +8511,8 @@ int intel_framebuffer_init(struct drm_device *dev,
>  	case DRM_FORMAT_C8:
>  	case DRM_FORMAT_RGB565:
>  	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_RGBX8888:
> +	case DRM_FORMAT_BGRX8888:
>  	case DRM_FORMAT_ARGB8888:
>  		break;
>  	case DRM_FORMAT_XRGB1555:
> @@ -8842,7 +8844,7 @@ void intel_modeset_init_hw(struct drm_device *dev)
>  void intel_modeset_init(struct drm_device *dev)
>  {
>  	struct drm_i915_private *dev_priv = dev->dev_private;
> -	int i, ret;
> +	int i, j, ret;
>  
>  	drm_mode_config_init(dev);
>  
> @@ -8877,9 +8879,12 @@ void intel_modeset_init(struct drm_device *dev)
>  
>  	for (i = 0; i < dev_priv->num_pipe; i++) {
>  		intel_crtc_init(dev, i);
> -		ret = intel_plane_init(dev, i);
> -		if (ret)
> -			DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret);
> +		for (j = 0; j < dev_priv->num_plane; j++) {
> +			ret = intel_plane_init(dev, i, j);
> +			if (ret)
> +				DRM_DEBUG_KMS("pipe %d plane %d init failed: %d\n",
> +					      i, j, ret);
> +		}
>  	}
>  
>  	intel_cpu_pll_init(dev);
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 010e998..494037d 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -242,6 +242,7 @@ struct intel_crtc {
>  
>  struct intel_plane {
>  	struct drm_plane base;
> +	int plane;
>  	enum pipe pipe;
>  	struct drm_i915_gem_object *obj;
>  	bool can_scale;
> @@ -488,7 +489,7 @@ extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
>  extern int intel_edp_target_clock(struct intel_encoder *,
>  				  struct drm_display_mode *mode);
>  extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
> -extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
> +extern int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
>  extern void intel_flush_display_plane(struct drm_i915_private *dev_priv,
>  				      enum plane plane);
>  
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index d086e48..74864a1 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -37,6 +37,181 @@
>  #include "i915_drv.h"
>  
>  static void
> +vlv_update_plane(struct drm_plane *dplane, struct drm_framebuffer *fb,
> +		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
> +		 unsigned int crtc_w, unsigned int crtc_h,
> +		 uint32_t x, uint32_t y,
> +		 uint32_t src_w, uint32_t src_h)
> +{
> +	struct drm_device *dev = dplane->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	struct intel_plane *intel_plane = to_intel_plane(dplane);
> +	int pipe = intel_plane->pipe;
> +	int plane = intel_plane->plane;
> +	u32 sprctl;
> +	int pixel_size;

Use drm_format_plane_cpp() for pixel_size

> +
> +	sprctl = I915_READ(SPCNTR(pipe, plane));
> +
> +	/* Mask out pixel format bits in case we change it */
> +	sprctl &= ~SP_PIXFORMAT_MASK;
> +	sprctl &= ~SP_YUV_BYTE_ORDER_MASK;
> +	sprctl &= ~SP_TILED;
> +
> +	switch (fb->pixel_format) {
> +	case DRM_FORMAT_YUYV:
> +		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
> +		pixel_size = 2;
> +		break;
> +	case DRM_FORMAT_YVYU:
> +		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
> +		pixel_size = 2;
> +		break;
> +	case DRM_FORMAT_UYVY:
> +		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
> +		pixel_size = 2;
> +		break;
> +	case DRM_FORMAT_VYUY:
> +		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
> +		pixel_size = 2;
> +		break;
> +	case DRM_FORMAT_BGR565:
> +		sprctl |= SP_FORMAT_BGR565;
> +		pixel_size = 2;
> +		break;
> +	case DRM_FORMAT_BGRX8888:
> +		sprctl |= SP_FORMAT_BGRX8888;
> +		pixel_size = 4;
> +		break;
> +	case DRM_FORMAT_BGRA8888:
> +		sprctl |= SP_FORMAT_BGRA8888;
> +		pixel_size = 4;
> +		break;
> +	case DRM_FORMAT_RGBX1010102:
> +		sprctl |= SP_FORMAT_RGBX1010102;
> +		pixel_size = 4;
> +		break;
> +	case DRM_FORMAT_RGBA1010102:
> +		sprctl |= SP_FORMAT_RGBA1010102;
> +		pixel_size = 4;
> +		break;
> +	case DRM_FORMAT_RGBX8888:
> +		sprctl |= SP_FORMAT_RGBX8888;
> +		pixel_size = 4;
> +		break;
> +	case DRM_FORMAT_RGBA8888:
> +		sprctl |= SP_FORMAT_RGBA8888;
> +		pixel_size = 4;
> +		break;
> +	default:
> +		DRM_DEBUG_DRIVER("bad pixel format, assuming BGRX8888\n");
> +		sprctl |= SP_FORMAT_BGRX8888;
> +		pixel_size = 4;
> +		break;

BUG();

> +	}
> +
> +	if (obj->tiling_mode != I915_TILING_NONE)
> +		sprctl |= SP_TILED;
> +
> +	sprctl |= SP_ENABLE;
> +
> +	/* Sizes are 0 based */
> +	src_w--;
> +	src_h--;
> +	crtc_w--;
> +	crtc_h--;
> +
> +	intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
> +
> +	I915_WRITE(SPSTRIDE(pipe, plane), fb->pitches[0]);
> +	I915_WRITE(SPPOS(pipe, plane), (crtc_y << 16) | crtc_x);
> +	if (obj->tiling_mode != I915_TILING_NONE) {
> +		I915_WRITE(SPTILEOFF(pipe, plane), (y << 16) | x);
> +	} else {
> +		unsigned long offset;
> +
> +		offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
> +		I915_WRITE(SPLINOFF(pipe, plane), offset);
> +	}

intel_gen4_compute_page_offset() should be used.

> +	I915_WRITE(SPSIZE(pipe, plane), (crtc_h << 16) | crtc_w);
> +	I915_WRITE(SPCNTR(pipe, plane), sprctl);
> +	I915_MODIFY_DISPBASE(SPSURF(pipe, plane), obj->gtt_offset);
> +	POSTING_READ(SPSURF(pipe, plane));
> +}
> +
> +static void
> +vlv_disable_plane(struct drm_plane *dplane)
> +{
> +	struct drm_device *dev = dplane->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	struct intel_plane *intel_plane = to_intel_plane(dplane);
> +	int pipe = intel_plane->pipe;
> +	int plane = intel_plane->plane;
> +
> +	I915_WRITE(SPCNTR(pipe, plane), I915_READ(SPCNTR(pipe, plane)) &
> +		   ~SP_ENABLE);
> +	/* Activate double buffered register update */
> +	I915_MODIFY_DISPBASE(SPSURF(pipe, plane), 0);
> +	POSTING_READ(SPSURF(pipe, plane));
> +
> +	intel_wait_for_vblank(dev, pipe);

We don't do this for ilk/ivb. I guess we should. Although w/ my sprite
clipping patches, it needs to be placed into intel_disable_plane() to
avoid double waits when fully clipped. Also having it in
intel_disable_plane() would be a bit more symmetric with the other
intel_wait_for_vblank() call in intel_update_plane().

> +
> +	dev_priv->sprite_scaling_enabled = false;
> +	intel_update_watermarks(dev);

ivb only stuff. Not needed on vlv.

> +}
> +
> +static int
> +vlv_update_colorkey(struct drm_plane *dplane,
> +		    struct drm_intel_sprite_colorkey *key)
> +{
> +	struct drm_device *dev = dplane->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	struct intel_plane *intel_plane = to_intel_plane(dplane);
> +	int pipe = intel_plane->pipe;
> +	int plane = intel_plane->plane;
> +	u32 sprctl;
> +
> +	if (key->flags & I915_SET_COLORKEY_DESTINATION)
> +		return -EINVAL;
> +
> +	I915_WRITE(SPKEYMINVAL(pipe, plane), key->min_value);
> +	I915_WRITE(SPKEYMAXVAL(pipe, plane), key->max_value);
> +	I915_WRITE(SPKEYMSK(pipe, plane), key->channel_mask);
> +
> +	sprctl = I915_READ(SPCNTR(pipe, plane));
> +	sprctl &= ~SP_SOURCE_KEY;
> +	if (key->flags & I915_SET_COLORKEY_SOURCE)
> +		sprctl |= SP_SOURCE_KEY;
> +	I915_WRITE(SPCNTR(pipe, plane), sprctl);
> +
> +	POSTING_READ(SPKEYMSK(pipe, plane));
> +
> +	return 0;
> +}
> +
> +static void
> +vlv_get_colorkey(struct drm_plane *dplane,
> +		 struct drm_intel_sprite_colorkey *key)
> +{
> +	struct drm_device *dev = dplane->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	struct intel_plane *intel_plane = to_intel_plane(dplane);
> +	int pipe = intel_plane->pipe;
> +	int plane = intel_plane->plane;
> +	u32 sprctl;
> +
> +	key->min_value = I915_READ(SPKEYMINVAL(pipe, plane));
> +	key->max_value = I915_READ(SPKEYMAXVAL(pipe, plane));
> +	key->channel_mask = I915_READ(SPKEYMSK(pipe, plane));
> +
> +	sprctl = I915_READ(SPCNTR(pipe, plane));
> +	if (sprctl & SP_SOURCE_KEY)
> +		key->flags = I915_SET_COLORKEY_SOURCE;
> +	else
> +		key->flags = I915_SET_COLORKEY_NONE;
> +}
> +
> +static void
>  ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
>  		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
>  		 unsigned int crtc_w, unsigned int crtc_h,
> @@ -670,8 +845,22 @@ static uint32_t snb_plane_formats[] = {
>  	DRM_FORMAT_VYUY,
>  };
>  
> +static uint32_t vlv_plane_formats[] = {
> +	DRM_FORMAT_BGR565,
> +	DRM_FORMAT_BGRA8888,
> +	DRM_FORMAT_RGBA8888,
> +	DRM_FORMAT_BGRX8888,
> +	DRM_FORMAT_RGBX8888,
> +	DRM_FORMAT_RGBX1010102,
> +	DRM_FORMAT_RGBA1010102,

RGB vs. BGR most likely mixed up. Maybe we should change our defines to
follow the drm_fourcc.h order to avoid confusion...

> +	DRM_FORMAT_YUYV,
> +	DRM_FORMAT_YVYU,
> +	DRM_FORMAT_UYVY,
> +	DRM_FORMAT_VYUY,
> +};
> +
>  int
> -intel_plane_init(struct drm_device *dev, enum pipe pipe)
> +intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
>  {
>  	struct intel_plane *intel_plane;
>  	unsigned long possible_crtcs;
> @@ -718,21 +907,37 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe)
>  
>  		plane_formats = snb_plane_formats;
>  		num_plane_formats = ARRAY_SIZE(snb_plane_formats);
> +
> +		if (IS_VALLEYVIEW(dev)) {
> +			intel_plane->max_downscale = 1;
> +			intel_plane->update_plane = vlv_update_plane;
> +			intel_plane->disable_plane = vlv_disable_plane;
> +			intel_plane->update_colorkey = vlv_update_colorkey;
> +			intel_plane->get_colorkey = vlv_get_colorkey;
> +
> +			plane_formats = vlv_plane_formats;
> +			num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
> +		}

A bit odd to first init everything with ivb values and then overwrite
with vlv values.

>  		break;
>  
>  	default:
> -		kfree(intel_plane);
> -		return -ENODEV;
> +		ret = -ENODEV;
> +		goto err_free;

Reworking the error paths seems to be an unrelated change. Maybe split it
to another patch if there's some merit in it.

>  	}
>  
>  	intel_plane->pipe = pipe;
> +	intel_plane->plane = plane;
>  	possible_crtcs = (1 << pipe);
>  	ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
>  			     &intel_plane_funcs,
>  			     plane_formats, num_plane_formats,
>  			     false);
>  	if (ret)
> -		kfree(intel_plane);
> +		goto err_free;
>  
>  	return ret;
> +
> +err_free:
> +	kfree(intel_plane);
> +	return ret;
>  }
> -- 
> 1.7.9.5
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel OTC