This patch enables skylake sprite plane display scaling using shared
scalers atomic desgin.
v2:
-use single copy of scaler limits (Matt)
v3:
-detaching scalers moved to crtc commit path (Matt)
v4:
-changes to align with updated scaler structures (Matt, me)
-keep sprite src rect in 16.16 format (Matt, Daniel)
v5:
-rebased on top of 90/270 rotation changes (me)
-Refactored skl_update_plane to reduce its size (Daniel)
It is a step towards having a single function covering all planes.
Signed-off-by: Chandra Konduru <chandra.kond...@intel.com>
Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
Testcase: kms_plane_scaling
---
drivers/gpu/drm/i915/intel_sprite.c | 125 ++++++++++++++---------------------
1 file changed, 48 insertions(+), 77 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_sprite.c
b/drivers/gpu/drm/i915/intel_sprite.c
index 2f42777..497bc1d 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -33,6 +33,7 @@
#include <drm/drm_crtc.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_rect.h>
+#include <drm/drm_atomic.h>
#include <drm/drm_plane_helper.h>
#include "intel_drv.h"
#include <drm/i915_drm.h>
@@ -197,80 +198,17 @@ skl_update_plane(struct drm_plane *drm_plane, struct
drm_crtc *crtc,
u32 tile_height, plane_offset, plane_size;
unsigned int rotation;
int x_offset, y_offset;
+ struct intel_crtc_state *crtc_state = to_intel_crtc(crtc)->config;
+ int scaler_id;
plane_ctl = PLANE_CTL_ENABLE |
PLANE_CTL_PIPE_CSC_ENABLE;
- switch (fb->pixel_format) {
- case DRM_FORMAT_RGB565:
- plane_ctl |= PLANE_CTL_FORMAT_RGB_565;
- break;
- case DRM_FORMAT_XBGR8888:
- plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX;
- break;
- case DRM_FORMAT_XRGB8888:
- plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888;
- break;
- /*
- * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
- * to be already pre-multiplied. We need to add a knob (or a different
- * DRM_FORMAT) for user-space to configure that.
- */
- case DRM_FORMAT_ABGR8888:
- plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888 |
- PLANE_CTL_ORDER_RGBX |
- PLANE_CTL_ALPHA_SW_PREMULTIPLY;
- break;
- case DRM_FORMAT_ARGB8888:
- plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888 |
- PLANE_CTL_ALPHA_SW_PREMULTIPLY;
- break;
- case DRM_FORMAT_YUYV:
- plane_ctl |= PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YUYV;
- break;
- case DRM_FORMAT_YVYU:
- plane_ctl |= PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YVYU;
- break;
- case DRM_FORMAT_UYVY:
- plane_ctl |= PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY;
- break;
- case DRM_FORMAT_VYUY:
- plane_ctl |= PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY;
- break;
- default:
- BUG();
- }
-
- switch (fb->modifier[0]) {
- case DRM_FORMAT_MOD_NONE:
- break;
- case I915_FORMAT_MOD_X_TILED:
- plane_ctl |= PLANE_CTL_TILED_X;
- break;
- case I915_FORMAT_MOD_Y_TILED:
- plane_ctl |= PLANE_CTL_TILED_Y;
- break;
- case I915_FORMAT_MOD_Yf_TILED:
- plane_ctl |= PLANE_CTL_TILED_YF;
- break;
- default:
- MISSING_CASE(fb->modifier[0]);
- }
+ plane_ctl |= skl_plane_ctl_format(fb->pixel_format);
+ plane_ctl |= skl_plane_ctl_tiling(fb->modifier[0]);
rotation = drm_plane->state->rotation;
- switch (rotation) {
- case BIT(DRM_ROTATE_90):
- plane_ctl |= PLANE_CTL_ROTATE_90;
- break;
-
- case BIT(DRM_ROTATE_180):
- plane_ctl |= PLANE_CTL_ROTATE_180;
- break;
-
- case BIT(DRM_ROTATE_270):
- plane_ctl |= PLANE_CTL_ROTATE_270;
- break;
- }
+ plane_ctl |= skl_plane_ctl_rotation(rotation);
intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
pixel_size, true,
@@ -279,6 +217,8 @@ skl_update_plane(struct drm_plane *drm_plane, struct
drm_crtc *crtc,
stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
fb->pixel_format);
+ scaler_id = to_intel_plane_state(drm_plane->state)->scaler_id;
+
/* Sizes are 0 based */
src_w--;
src_h--;
@@ -316,8 +256,27 @@ skl_update_plane(struct drm_plane *drm_plane, struct
drm_crtc *crtc,
I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
- I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
+
+ /* program plane scaler */
+ if (scaler_id >= 0) {
+ uint32_t ps_ctrl = 0;
+
+ DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", plane,
+ PS_PLANE_SEL(plane));
+ ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(plane) |
+ crtc_state->scaler_state.scalers[scaler_id].mode;
+ I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl);
+ I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
+ I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) |
crtc_y);
+ I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id),
+ ((crtc_w + 1) << 16)|(crtc_h + 1));
+
+ I915_WRITE(PLANE_POS(pipe, plane), 0);
+ } else {
+ I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
+ }
+
I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
POSTING_READ(PLANE_SURF(pipe, plane));
@@ -894,7 +853,9 @@ static int
intel_check_sprite_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
+ struct drm_device *dev = plane->dev;
struct intel_crtc *intel_crtc = to_intel_crtc(state->base.crtc);
+ struct intel_crtc_state *crtc_state;
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_framebuffer *fb = state->base.fb;
int crtc_x, crtc_y;
@@ -906,8 +867,11 @@ intel_check_sprite_plane(struct drm_plane *plane,
int hscale, vscale;
int max_scale, min_scale;
int pixel_size;
+ int ret;
intel_crtc = intel_crtc ? intel_crtc : to_intel_crtc(plane->crtc);
+ crtc_state = state->base.state ?
+ intel_atomic_get_crtc_state(state->base.state, intel_crtc) :
NULL;
if (!fb) {
state->visible = false;
@@ -934,6 +898,11 @@ intel_check_sprite_plane(struct drm_plane *plane,
max_scale = intel_plane->max_downscale << 16;
min_scale = intel_plane->can_scale ? 1 : (1 << 16);
+ if (INTEL_INFO(dev)->gen >= 9) {
+ min_scale = 1;
+ max_scale = skl_max_scale(intel_crtc, crtc_state);
+ }
+
drm_rect_rotate(src, fb->width << 16, fb->height << 16,
state->base.rotation);
@@ -1029,8 +998,8 @@ intel_check_sprite_plane(struct drm_plane *plane,
width_bytes = ((src_x * pixel_size) & 63) +
src_w * pixel_size;
- if (src_w > 2048 || src_h > 2048 ||
- width_bytes > 4096 || fb->pitches[0] > 4096) {
+ if (INTEL_INFO(dev)->gen < 9 && (src_w > 2048 || src_h > 2048 ||
+ width_bytes > 4096 || fb->pitches[0] > 4096)) {
DRM_DEBUG_KMS("Source dimensions exceed hardware
limits\n");
return -EINVAL;
}
@@ -1084,6 +1053,13 @@ finish:
}
}
+ if (INTEL_INFO(dev)->gen >= 9) {
+ ret = skl_update_scaler_users(intel_crtc, crtc_state,
intel_plane,
+ state, 0);
+ if (ret)
+ return ret;
+ }
+
return 0;
}
@@ -1295,12 +1271,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe,
int plane)
}
break;
case 9:
- /*
- * FIXME: Skylake planes can be scaled (with some restrictions),
- * but this is for another time.
- */
- intel_plane->can_scale = false;
- intel_plane->max_downscale = 1;
+ intel_plane->can_scale = true;
intel_plane->update_plane = skl_update_plane;
intel_plane->disable_plane = skl_disable_plane;
state->scaler_id = -1;
