linux/drivers/gpu/drm/i915/intel_sprite.c
cpaul@redhat.com d8c0fafcbd drm/i915/gen9: Get rid of redundant watermark values
Now that we've make skl_wm_levels make a little more sense, we can
remove all of the redundant wm information. Up until now we'd been
storing two copies of all of the skl watermarks: one being the
skl_pipe_wm structs, the other being the global wm struct in
drm_i915_private containing the raw register values. This is confusing
and problematic, since it means we're prone to accidentally letting the
two copies go out of sync. So, get rid of all of the functions
responsible for computing the register values and just use a single
helper, skl_write_wm_level(), to convert and write the new watermarks on
the fly.

Changes since v1:
- Fixup skl_write_wm_level()
- Fixup skl_wm_level_from_reg_val()
- Don't forget to copy *active to intel_crtc->wm.active.skl
Changes since v2:
- Fix usage of wrong cstate
Changes since v3 (by Paulo):
- Rebase

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v2)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476814189-6062-1-git-send-email-paulo.r.zanoni@intel.com
2016-10-19 18:24:18 -02:00

1164 lines
33 KiB
C

/*
* Copyright © 2011 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Jesse Barnes <jbarnes@virtuousgeek.org>
*
* New plane/sprite handling.
*
* The older chips had a separate interface for programming plane related
* registers; newer ones are much simpler and we can use the new DRM plane
* support.
*/
#include <drm/drmP.h>
#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 "intel_frontbuffer.h"
#include <drm/i915_drm.h>
#include "i915_drv.h"
static bool
format_is_yuv(uint32_t format)
{
switch (format) {
case DRM_FORMAT_YUYV:
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
case DRM_FORMAT_YVYU:
return true;
default:
return false;
}
}
int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
int usecs)
{
/* paranoia */
if (!adjusted_mode->crtc_htotal)
return 1;
return DIV_ROUND_UP(usecs * adjusted_mode->crtc_clock,
1000 * adjusted_mode->crtc_htotal);
}
/**
* intel_pipe_update_start() - start update of a set of display registers
* @crtc: the crtc of which the registers are going to be updated
* @start_vbl_count: vblank counter return pointer used for error checking
*
* Mark the start of an update to pipe registers that should be updated
* atomically regarding vblank. If the next vblank will happens within
* the next 100 us, this function waits until the vblank passes.
*
* After a successful call to this function, interrupts will be disabled
* until a subsequent call to intel_pipe_update_end(). That is done to
* avoid random delays. The value written to @start_vbl_count should be
* supplied to intel_pipe_update_end() for error checking.
*/
void intel_pipe_update_start(struct intel_crtc *crtc)
{
const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
long timeout = msecs_to_jiffies_timeout(1);
int scanline, min, max, vblank_start;
wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
DEFINE_WAIT(wait);
vblank_start = adjusted_mode->crtc_vblank_start;
if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
vblank_start = DIV_ROUND_UP(vblank_start, 2);
/* FIXME needs to be calibrated sensibly */
min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, 100);
max = vblank_start - 1;
local_irq_disable();
if (min <= 0 || max <= 0)
return;
if (WARN_ON(drm_crtc_vblank_get(&crtc->base)))
return;
crtc->debug.min_vbl = min;
crtc->debug.max_vbl = max;
trace_i915_pipe_update_start(crtc);
for (;;) {
/*
* prepare_to_wait() has a memory barrier, which guarantees
* other CPUs can see the task state update by the time we
* read the scanline.
*/
prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
scanline = intel_get_crtc_scanline(crtc);
if (scanline < min || scanline > max)
break;
if (timeout <= 0) {
DRM_ERROR("Potential atomic update failure on pipe %c\n",
pipe_name(crtc->pipe));
break;
}
local_irq_enable();
timeout = schedule_timeout(timeout);
local_irq_disable();
}
finish_wait(wq, &wait);
drm_crtc_vblank_put(&crtc->base);
crtc->debug.scanline_start = scanline;
crtc->debug.start_vbl_time = ktime_get();
crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc);
trace_i915_pipe_update_vblank_evaded(crtc);
}
/**
* intel_pipe_update_end() - end update of a set of display registers
* @crtc: the crtc of which the registers were updated
* @start_vbl_count: start vblank counter (used for error checking)
*
* Mark the end of an update started with intel_pipe_update_start(). This
* re-enables interrupts and verifies the update was actually completed
* before a vblank using the value of @start_vbl_count.
*/
void intel_pipe_update_end(struct intel_crtc *crtc, struct intel_flip_work *work)
{
enum pipe pipe = crtc->pipe;
int scanline_end = intel_get_crtc_scanline(crtc);
u32 end_vbl_count = intel_crtc_get_vblank_counter(crtc);
ktime_t end_vbl_time = ktime_get();
if (work) {
work->flip_queued_vblank = end_vbl_count;
smp_mb__before_atomic();
atomic_set(&work->pending, 1);
}
trace_i915_pipe_update_end(crtc, end_vbl_count, scanline_end);
/* We're still in the vblank-evade critical section, this can't race.
* Would be slightly nice to just grab the vblank count and arm the
* event outside of the critical section - the spinlock might spin for a
* while ... */
if (crtc->base.state->event) {
WARN_ON(drm_crtc_vblank_get(&crtc->base) != 0);
spin_lock(&crtc->base.dev->event_lock);
drm_crtc_arm_vblank_event(&crtc->base, crtc->base.state->event);
spin_unlock(&crtc->base.dev->event_lock);
crtc->base.state->event = NULL;
}
local_irq_enable();
if (crtc->debug.start_vbl_count &&
crtc->debug.start_vbl_count != end_vbl_count) {
DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u) time %lld us, min %d, max %d, scanline start %d, end %d\n",
pipe_name(pipe), crtc->debug.start_vbl_count,
end_vbl_count,
ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time),
crtc->debug.min_vbl, crtc->debug.max_vbl,
crtc->debug.scanline_start, scanline_end);
}
}
static void
skl_update_plane(struct drm_plane *drm_plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = drm_plane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(drm_plane);
struct drm_framebuffer *fb = plane_state->base.fb;
const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
struct drm_crtc *crtc = crtc_state->base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
const int pipe = intel_plane->pipe;
const int plane = intel_plane->plane + 1;
const struct skl_plane_wm *p_wm =
&crtc_state->wm.skl.optimal.planes[plane];
u32 plane_ctl;
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
u32 surf_addr = plane_state->main.offset;
unsigned int rotation = plane_state->base.rotation;
u32 stride = skl_plane_stride(fb, 0, rotation);
int crtc_x = plane_state->base.dst.x1;
int crtc_y = plane_state->base.dst.y1;
uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
uint32_t x = plane_state->main.x;
uint32_t y = plane_state->main.y;
uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
plane_ctl = PLANE_CTL_ENABLE |
PLANE_CTL_PIPE_GAMMA_ENABLE |
PLANE_CTL_PIPE_CSC_ENABLE;
plane_ctl |= skl_plane_ctl_format(fb->pixel_format);
plane_ctl |= skl_plane_ctl_tiling(fb->modifier[0]);
plane_ctl |= skl_plane_ctl_rotation(rotation);
if (wm->dirty_pipes & drm_crtc_mask(crtc))
skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, plane);
if (key->flags) {
I915_WRITE(PLANE_KEYVAL(pipe, plane), key->min_value);
I915_WRITE(PLANE_KEYMAX(pipe, plane), key->max_value);
I915_WRITE(PLANE_KEYMSK(pipe, plane), key->channel_mask);
}
if (key->flags & I915_SET_COLORKEY_DESTINATION)
plane_ctl |= PLANE_CTL_KEY_ENABLE_DESTINATION;
else if (key->flags & I915_SET_COLORKEY_SOURCE)
plane_ctl |= PLANE_CTL_KEY_ENABLE_SOURCE;
/* Sizes are 0 based */
src_w--;
src_h--;
crtc_w--;
crtc_h--;
I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
I915_WRITE(PLANE_SIZE(pipe, plane), (src_h << 16) | src_w);
/* program plane scaler */
if (plane_state->scaler_id >= 0) {
int scaler_id = plane_state->scaler_id;
const struct intel_scaler *scaler;
DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", plane,
PS_PLANE_SEL(plane));
scaler = &crtc_state->scaler_state.scalers[scaler_id];
I915_WRITE(SKL_PS_CTRL(pipe, scaler_id),
PS_SCALER_EN | PS_PLANE_SEL(plane) | scaler->mode);
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),
intel_fb_gtt_offset(fb, rotation) + surf_addr);
POSTING_READ(PLANE_SURF(pipe, plane));
}
static void
skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
{
struct drm_device *dev = dplane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(dplane);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
const int pipe = intel_plane->pipe;
const int plane = intel_plane->plane + 1;
/*
* We only populate skl_results on watermark updates, and if the
* plane's visiblity isn't actually changing neither is its watermarks.
*/
if (!dplane->state->visible)
skl_write_plane_wm(to_intel_crtc(crtc),
&cstate->wm.skl.optimal.planes[plane],
&dev_priv->wm.skl_results.ddb, plane);
I915_WRITE(PLANE_CTL(pipe, plane), 0);
I915_WRITE(PLANE_SURF(pipe, plane), 0);
POSTING_READ(PLANE_SURF(pipe, plane));
}
static void
chv_update_csc(struct intel_plane *intel_plane, uint32_t format)
{
struct drm_i915_private *dev_priv = to_i915(intel_plane->base.dev);
int plane = intel_plane->plane;
/* Seems RGB data bypasses the CSC always */
if (!format_is_yuv(format))
return;
/*
* BT.601 limited range YCbCr -> full range RGB
*
* |r| | 6537 4769 0| |cr |
* |g| = |-3330 4769 -1605| x |y-64|
* |b| | 0 4769 8263| |cb |
*
* Cb and Cr apparently come in as signed already, so no
* need for any offset. For Y we need to remove the offset.
*/
I915_WRITE(SPCSCYGOFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(-64));
I915_WRITE(SPCSCCBOFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(0));
I915_WRITE(SPCSCCROFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(0));
I915_WRITE(SPCSCC01(plane), SPCSC_C1(4769) | SPCSC_C0(6537));
I915_WRITE(SPCSCC23(plane), SPCSC_C1(-3330) | SPCSC_C0(0));
I915_WRITE(SPCSCC45(plane), SPCSC_C1(-1605) | SPCSC_C0(4769));
I915_WRITE(SPCSCC67(plane), SPCSC_C1(4769) | SPCSC_C0(0));
I915_WRITE(SPCSCC8(plane), SPCSC_C0(8263));
I915_WRITE(SPCSCYGICLAMP(plane), SPCSC_IMAX(940) | SPCSC_IMIN(64));
I915_WRITE(SPCSCCBICLAMP(plane), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
I915_WRITE(SPCSCCRICLAMP(plane), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
I915_WRITE(SPCSCYGOCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
I915_WRITE(SPCSCCBOCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
I915_WRITE(SPCSCCROCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
}
static void
vlv_update_plane(struct drm_plane *dplane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = dplane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(dplane);
struct drm_framebuffer *fb = plane_state->base.fb;
int pipe = intel_plane->pipe;
int plane = intel_plane->plane;
u32 sprctl;
u32 sprsurf_offset, linear_offset;
unsigned int rotation = dplane->state->rotation;
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
int crtc_x = plane_state->base.dst.x1;
int crtc_y = plane_state->base.dst.y1;
uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
uint32_t x = plane_state->base.src.x1 >> 16;
uint32_t y = plane_state->base.src.y1 >> 16;
uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
sprctl = SP_ENABLE;
switch (fb->pixel_format) {
case DRM_FORMAT_YUYV:
sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
break;
case DRM_FORMAT_YVYU:
sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
break;
case DRM_FORMAT_UYVY:
sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
break;
case DRM_FORMAT_VYUY:
sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
break;
case DRM_FORMAT_RGB565:
sprctl |= SP_FORMAT_BGR565;
break;
case DRM_FORMAT_XRGB8888:
sprctl |= SP_FORMAT_BGRX8888;
break;
case DRM_FORMAT_ARGB8888:
sprctl |= SP_FORMAT_BGRA8888;
break;
case DRM_FORMAT_XBGR2101010:
sprctl |= SP_FORMAT_RGBX1010102;
break;
case DRM_FORMAT_ABGR2101010:
sprctl |= SP_FORMAT_RGBA1010102;
break;
case DRM_FORMAT_XBGR8888:
sprctl |= SP_FORMAT_RGBX8888;
break;
case DRM_FORMAT_ABGR8888:
sprctl |= SP_FORMAT_RGBA8888;
break;
default:
/*
* If we get here one of the upper layers failed to filter
* out the unsupported plane formats
*/
BUG();
break;
}
/*
* Enable gamma to match primary/cursor plane behaviour.
* FIXME should be user controllable via propertiesa.
*/
sprctl |= SP_GAMMA_ENABLE;
if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
sprctl |= SP_TILED;
/* Sizes are 0 based */
src_w--;
src_h--;
crtc_w--;
crtc_h--;
intel_add_fb_offsets(&x, &y, plane_state, 0);
sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
if (rotation == DRM_ROTATE_180) {
sprctl |= SP_ROTATE_180;
x += src_w;
y += src_h;
}
linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
if (key->flags) {
I915_WRITE(SPKEYMINVAL(pipe, plane), key->min_value);
I915_WRITE(SPKEYMAXVAL(pipe, plane), key->max_value);
I915_WRITE(SPKEYMSK(pipe, plane), key->channel_mask);
}
if (key->flags & I915_SET_COLORKEY_SOURCE)
sprctl |= SP_SOURCE_KEY;
if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
chv_update_csc(intel_plane, fb->pixel_format);
I915_WRITE(SPSTRIDE(pipe, plane), fb->pitches[0]);
I915_WRITE(SPPOS(pipe, plane), (crtc_y << 16) | crtc_x);
if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
I915_WRITE(SPTILEOFF(pipe, plane), (y << 16) | x);
else
I915_WRITE(SPLINOFF(pipe, plane), linear_offset);
I915_WRITE(SPCONSTALPHA(pipe, plane), 0);
I915_WRITE(SPSIZE(pipe, plane), (crtc_h << 16) | crtc_w);
I915_WRITE(SPCNTR(pipe, plane), sprctl);
I915_WRITE(SPSURF(pipe, plane),
intel_fb_gtt_offset(fb, rotation) + sprsurf_offset);
POSTING_READ(SPSURF(pipe, plane));
}
static void
vlv_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
{
struct drm_device *dev = dplane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(dplane);
int pipe = intel_plane->pipe;
int plane = intel_plane->plane;
I915_WRITE(SPCNTR(pipe, plane), 0);
I915_WRITE(SPSURF(pipe, plane), 0);
POSTING_READ(SPSURF(pipe, plane));
}
static void
ivb_update_plane(struct drm_plane *plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_framebuffer *fb = plane_state->base.fb;
enum pipe pipe = intel_plane->pipe;
u32 sprctl, sprscale = 0;
u32 sprsurf_offset, linear_offset;
unsigned int rotation = plane_state->base.rotation;
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
int crtc_x = plane_state->base.dst.x1;
int crtc_y = plane_state->base.dst.y1;
uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
uint32_t x = plane_state->base.src.x1 >> 16;
uint32_t y = plane_state->base.src.y1 >> 16;
uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
sprctl = SPRITE_ENABLE;
switch (fb->pixel_format) {
case DRM_FORMAT_XBGR8888:
sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
break;
case DRM_FORMAT_XRGB8888:
sprctl |= SPRITE_FORMAT_RGBX888;
break;
case DRM_FORMAT_YUYV:
sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
break;
case DRM_FORMAT_YVYU:
sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
break;
case DRM_FORMAT_UYVY:
sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
break;
case DRM_FORMAT_VYUY:
sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
break;
default:
BUG();
}
/*
* Enable gamma to match primary/cursor plane behaviour.
* FIXME should be user controllable via propertiesa.
*/
sprctl |= SPRITE_GAMMA_ENABLE;
if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
sprctl |= SPRITE_TILED;
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
sprctl &= ~SPRITE_TRICKLE_FEED_DISABLE;
else
sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
sprctl |= SPRITE_PIPE_CSC_ENABLE;
/* Sizes are 0 based */
src_w--;
src_h--;
crtc_w--;
crtc_h--;
if (crtc_w != src_w || crtc_h != src_h)
sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
intel_add_fb_offsets(&x, &y, plane_state, 0);
sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
if (rotation == DRM_ROTATE_180) {
sprctl |= SPRITE_ROTATE_180;
/* HSW and BDW does this automagically in hardware */
if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv)) {
x += src_w;
y += src_h;
}
}
linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
if (key->flags) {
I915_WRITE(SPRKEYVAL(pipe), key->min_value);
I915_WRITE(SPRKEYMAX(pipe), key->max_value);
I915_WRITE(SPRKEYMSK(pipe), key->channel_mask);
}
if (key->flags & I915_SET_COLORKEY_DESTINATION)
sprctl |= SPRITE_DEST_KEY;
else if (key->flags & I915_SET_COLORKEY_SOURCE)
sprctl |= SPRITE_SOURCE_KEY;
I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
/* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
* register */
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
I915_WRITE(SPROFFSET(pipe), (y << 16) | x);
else if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
else
I915_WRITE(SPRLINOFF(pipe), linear_offset);
I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
if (intel_plane->can_scale)
I915_WRITE(SPRSCALE(pipe), sprscale);
I915_WRITE(SPRCTL(pipe), sprctl);
I915_WRITE(SPRSURF(pipe),
intel_fb_gtt_offset(fb, rotation) + sprsurf_offset);
POSTING_READ(SPRSURF(pipe));
}
static void
ivb_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
{
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(plane);
int pipe = intel_plane->pipe;
I915_WRITE(SPRCTL(pipe), 0);
/* Can't leave the scaler enabled... */
if (intel_plane->can_scale)
I915_WRITE(SPRSCALE(pipe), 0);
I915_WRITE(SPRSURF(pipe), 0);
POSTING_READ(SPRSURF(pipe));
}
static void
ilk_update_plane(struct drm_plane *plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_framebuffer *fb = plane_state->base.fb;
int pipe = intel_plane->pipe;
u32 dvscntr, dvsscale;
u32 dvssurf_offset, linear_offset;
unsigned int rotation = plane_state->base.rotation;
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
int crtc_x = plane_state->base.dst.x1;
int crtc_y = plane_state->base.dst.y1;
uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
uint32_t x = plane_state->base.src.x1 >> 16;
uint32_t y = plane_state->base.src.y1 >> 16;
uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
dvscntr = DVS_ENABLE;
switch (fb->pixel_format) {
case DRM_FORMAT_XBGR8888:
dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
break;
case DRM_FORMAT_XRGB8888:
dvscntr |= DVS_FORMAT_RGBX888;
break;
case DRM_FORMAT_YUYV:
dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
break;
case DRM_FORMAT_YVYU:
dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
break;
case DRM_FORMAT_UYVY:
dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
break;
case DRM_FORMAT_VYUY:
dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
break;
default:
BUG();
}
/*
* Enable gamma to match primary/cursor plane behaviour.
* FIXME should be user controllable via propertiesa.
*/
dvscntr |= DVS_GAMMA_ENABLE;
if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
dvscntr |= DVS_TILED;
if (IS_GEN6(dev_priv))
dvscntr |= DVS_TRICKLE_FEED_DISABLE; /* must disable */
/* Sizes are 0 based */
src_w--;
src_h--;
crtc_w--;
crtc_h--;
dvsscale = 0;
if (crtc_w != src_w || crtc_h != src_h)
dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
intel_add_fb_offsets(&x, &y, plane_state, 0);
dvssurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
if (rotation == DRM_ROTATE_180) {
dvscntr |= DVS_ROTATE_180;
x += src_w;
y += src_h;
}
linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
if (key->flags) {
I915_WRITE(DVSKEYVAL(pipe), key->min_value);
I915_WRITE(DVSKEYMAX(pipe), key->max_value);
I915_WRITE(DVSKEYMSK(pipe), key->channel_mask);
}
if (key->flags & I915_SET_COLORKEY_DESTINATION)
dvscntr |= DVS_DEST_KEY;
else if (key->flags & I915_SET_COLORKEY_SOURCE)
dvscntr |= DVS_SOURCE_KEY;
I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
if (fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
else
I915_WRITE(DVSLINOFF(pipe), linear_offset);
I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
I915_WRITE(DVSSCALE(pipe), dvsscale);
I915_WRITE(DVSCNTR(pipe), dvscntr);
I915_WRITE(DVSSURF(pipe),
intel_fb_gtt_offset(fb, rotation) + dvssurf_offset);
POSTING_READ(DVSSURF(pipe));
}
static void
ilk_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
{
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(plane);
int pipe = intel_plane->pipe;
I915_WRITE(DVSCNTR(pipe), 0);
/* Disable the scaler */
I915_WRITE(DVSSCALE(pipe), 0);
I915_WRITE(DVSSURF(pipe), 0);
POSTING_READ(DVSSURF(pipe));
}
static int
intel_check_sprite_plane(struct drm_plane *plane,
struct intel_crtc_state *crtc_state,
struct intel_plane_state *state)
{
struct drm_i915_private *dev_priv = to_i915(plane->dev);
struct drm_crtc *crtc = state->base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_framebuffer *fb = state->base.fb;
int crtc_x, crtc_y;
unsigned int crtc_w, crtc_h;
uint32_t src_x, src_y, src_w, src_h;
struct drm_rect *src = &state->base.src;
struct drm_rect *dst = &state->base.dst;
const struct drm_rect *clip = &state->clip;
int hscale, vscale;
int max_scale, min_scale;
bool can_scale;
int ret;
src->x1 = state->base.src_x;
src->y1 = state->base.src_y;
src->x2 = state->base.src_x + state->base.src_w;
src->y2 = state->base.src_y + state->base.src_h;
dst->x1 = state->base.crtc_x;
dst->y1 = state->base.crtc_y;
dst->x2 = state->base.crtc_x + state->base.crtc_w;
dst->y2 = state->base.crtc_y + state->base.crtc_h;
if (!fb) {
state->base.visible = false;
return 0;
}
/* Don't modify another pipe's plane */
if (intel_plane->pipe != intel_crtc->pipe) {
DRM_DEBUG_KMS("Wrong plane <-> crtc mapping\n");
return -EINVAL;
}
/* FIXME check all gen limits */
if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > 16384) {
DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n");
return -EINVAL;
}
/* setup can_scale, min_scale, max_scale */
if (INTEL_GEN(dev_priv) >= 9) {
/* use scaler when colorkey is not required */
if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
can_scale = 1;
min_scale = 1;
max_scale = skl_max_scale(intel_crtc, crtc_state);
} else {
can_scale = 0;
min_scale = DRM_PLANE_HELPER_NO_SCALING;
max_scale = DRM_PLANE_HELPER_NO_SCALING;
}
} else {
can_scale = intel_plane->can_scale;
max_scale = intel_plane->max_downscale << 16;
min_scale = intel_plane->can_scale ? 1 : (1 << 16);
}
/*
* FIXME the following code does a bunch of fuzzy adjustments to the
* coordinates and sizes. We probably need some way to decide whether
* more strict checking should be done instead.
*/
drm_rect_rotate(src, fb->width << 16, fb->height << 16,
state->base.rotation);
hscale = drm_rect_calc_hscale_relaxed(src, dst, min_scale, max_scale);
BUG_ON(hscale < 0);
vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale);
BUG_ON(vscale < 0);
state->base.visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale);
crtc_x = dst->x1;
crtc_y = dst->y1;
crtc_w = drm_rect_width(dst);
crtc_h = drm_rect_height(dst);
if (state->base.visible) {
/* check again in case clipping clamped the results */
hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
if (hscale < 0) {
DRM_DEBUG_KMS("Horizontal scaling factor out of limits\n");
drm_rect_debug_print("src: ", src, true);
drm_rect_debug_print("dst: ", dst, false);
return hscale;
}
vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
if (vscale < 0) {
DRM_DEBUG_KMS("Vertical scaling factor out of limits\n");
drm_rect_debug_print("src: ", src, true);
drm_rect_debug_print("dst: ", dst, false);
return vscale;
}
/* Make the source viewport size an exact multiple of the scaling factors. */
drm_rect_adjust_size(src,
drm_rect_width(dst) * hscale - drm_rect_width(src),
drm_rect_height(dst) * vscale - drm_rect_height(src));
drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16,
state->base.rotation);
/* sanity check to make sure the src viewport wasn't enlarged */
WARN_ON(src->x1 < (int) state->base.src_x ||
src->y1 < (int) state->base.src_y ||
src->x2 > (int) state->base.src_x + state->base.src_w ||
src->y2 > (int) state->base.src_y + state->base.src_h);
/*
* Hardware doesn't handle subpixel coordinates.
* Adjust to (macro)pixel boundary, but be careful not to
* increase the source viewport size, because that could
* push the downscaling factor out of bounds.
*/
src_x = src->x1 >> 16;
src_w = drm_rect_width(src) >> 16;
src_y = src->y1 >> 16;
src_h = drm_rect_height(src) >> 16;
if (format_is_yuv(fb->pixel_format)) {
src_x &= ~1;
src_w &= ~1;
/*
* Must keep src and dst the
* same if we can't scale.
*/
if (!can_scale)
crtc_w &= ~1;
if (crtc_w == 0)
state->base.visible = false;
}
}
/* Check size restrictions when scaling */
if (state->base.visible && (src_w != crtc_w || src_h != crtc_h)) {
unsigned int width_bytes;
int cpp = drm_format_plane_cpp(fb->pixel_format, 0);
WARN_ON(!can_scale);
/* FIXME interlacing min height is 6 */
if (crtc_w < 3 || crtc_h < 3)
state->base.visible = false;
if (src_w < 3 || src_h < 3)
state->base.visible = false;
width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
if (INTEL_GEN(dev_priv) < 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;
}
}
if (state->base.visible) {
src->x1 = src_x << 16;
src->x2 = (src_x + src_w) << 16;
src->y1 = src_y << 16;
src->y2 = (src_y + src_h) << 16;
}
dst->x1 = crtc_x;
dst->x2 = crtc_x + crtc_w;
dst->y1 = crtc_y;
dst->y2 = crtc_y + crtc_h;
if (INTEL_GEN(dev_priv) >= 9) {
ret = skl_check_plane_surface(state);
if (ret)
return ret;
}
return 0;
}
int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_intel_sprite_colorkey *set = data;
struct drm_plane *plane;
struct drm_plane_state *plane_state;
struct drm_atomic_state *state;
struct drm_modeset_acquire_ctx ctx;
int ret = 0;
/* Make sure we don't try to enable both src & dest simultaneously */
if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
return -EINVAL;
if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
set->flags & I915_SET_COLORKEY_DESTINATION)
return -EINVAL;
plane = drm_plane_find(dev, set->plane_id);
if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
return -ENOENT;
drm_modeset_acquire_init(&ctx, 0);
state = drm_atomic_state_alloc(plane->dev);
if (!state) {
ret = -ENOMEM;
goto out;
}
state->acquire_ctx = &ctx;
while (1) {
plane_state = drm_atomic_get_plane_state(state, plane);
ret = PTR_ERR_OR_ZERO(plane_state);
if (!ret) {
to_intel_plane_state(plane_state)->ckey = *set;
ret = drm_atomic_commit(state);
}
if (ret != -EDEADLK)
break;
drm_atomic_state_clear(state);
drm_modeset_backoff(&ctx);
}
if (ret)
drm_atomic_state_free(state);
out:
drm_modeset_drop_locks(&ctx);
drm_modeset_acquire_fini(&ctx);
return ret;
}
static const uint32_t ilk_plane_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
};
static const uint32_t snb_plane_formats[] = {
DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
};
static const uint32_t vlv_plane_formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_ABGR8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_XBGR2101010,
DRM_FORMAT_ABGR2101010,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
};
static uint32_t skl_plane_formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_ABGR8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
};
int
intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = NULL;
struct intel_plane_state *state = NULL;
unsigned long possible_crtcs;
const uint32_t *plane_formats;
int num_plane_formats;
int ret;
if (INTEL_INFO(dev)->gen < 5)
return -ENODEV;
intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL);
if (!intel_plane) {
ret = -ENOMEM;
goto fail;
}
state = intel_create_plane_state(&intel_plane->base);
if (!state) {
ret = -ENOMEM;
goto fail;
}
intel_plane->base.state = &state->base;
switch (INTEL_INFO(dev)->gen) {
case 5:
case 6:
intel_plane->can_scale = true;
intel_plane->max_downscale = 16;
intel_plane->update_plane = ilk_update_plane;
intel_plane->disable_plane = ilk_disable_plane;
if (IS_GEN6(dev_priv)) {
plane_formats = snb_plane_formats;
num_plane_formats = ARRAY_SIZE(snb_plane_formats);
} else {
plane_formats = ilk_plane_formats;
num_plane_formats = ARRAY_SIZE(ilk_plane_formats);
}
break;
case 7:
case 8:
if (IS_IVYBRIDGE(dev_priv)) {
intel_plane->can_scale = true;
intel_plane->max_downscale = 2;
} else {
intel_plane->can_scale = false;
intel_plane->max_downscale = 1;
}
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
intel_plane->update_plane = vlv_update_plane;
intel_plane->disable_plane = vlv_disable_plane;
plane_formats = vlv_plane_formats;
num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
} else {
intel_plane->update_plane = ivb_update_plane;
intel_plane->disable_plane = ivb_disable_plane;
plane_formats = snb_plane_formats;
num_plane_formats = ARRAY_SIZE(snb_plane_formats);
}
break;
case 9:
intel_plane->can_scale = true;
intel_plane->update_plane = skl_update_plane;
intel_plane->disable_plane = skl_disable_plane;
state->scaler_id = -1;
plane_formats = skl_plane_formats;
num_plane_formats = ARRAY_SIZE(skl_plane_formats);
break;
default:
MISSING_CASE(INTEL_INFO(dev)->gen);
ret = -ENODEV;
goto fail;
}
intel_plane->pipe = pipe;
intel_plane->plane = plane;
intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
intel_plane->check_plane = intel_check_sprite_plane;
possible_crtcs = (1 << pipe);
if (INTEL_INFO(dev)->gen >= 9)
ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
&intel_plane_funcs,
plane_formats, num_plane_formats,
DRM_PLANE_TYPE_OVERLAY,
"plane %d%c", plane + 2, pipe_name(pipe));
else
ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
&intel_plane_funcs,
plane_formats, num_plane_formats,
DRM_PLANE_TYPE_OVERLAY,
"sprite %c", sprite_name(pipe, plane));
if (ret)
goto fail;
intel_create_rotation_property(dev, intel_plane);
drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
return 0;
fail:
kfree(state);
kfree(intel_plane);
return ret;
}