The video sprites support various video surface formats natively and can
handle scaling as well. So add support for them using the new DRM core
sprite support functions.
v2: use drm specific fourcc header and defines
v3: address Daniel's comments:
- don't take struct mutex around register access (only needed for
regs in the GT power well)
- don't hold struct mutex across vblank waits
- fix up update_plane API (pass obj instead of GTT offset)
- add interlaced defines for sprite regs
- drop unnecessary 'reg' variables
- comment double buffered reg flushing
Also fix w/h confusion when writing the scaling reg.
For this version, I tested DPMS since it came up in the last review;
DPMS off/on works ok when a video player is working under X, but for
power saving we'll probably want to do something smarter. I'll leave
that for a separate patch on top. Likewise with the refcounting/fb
layer handling, which are really separate cleanups.
Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/i915_reg.h | 127 ++++++++++
drivers/gpu/drm/i915/intel_display.c | 29 ++-
drivers/gpu/drm/i915/intel_drv.h | 23 ++
drivers/gpu/drm/i915/intel_fb.c | 6 +
drivers/gpu/drm/i915/intel_sprite.c | 425 ++++++++++++++++++++++++++++++++++
6 files changed, 601 insertions(+), 10 deletions(-)
create mode 100644 drivers/gpu/drm/i915/intel_sprite.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 0ae6a7c..808b255 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -28,6 +28,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
intel_dvo.o \
intel_ringbuffer.o \
intel_overlay.o \
+ intel_sprite.o \
intel_opregion.o \
dvo_ch7xxx.o \
dvo_ch7017.o \
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5a09416..7929a55 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2450,6 +2450,8 @@
#define WM3_LP_ILK 0x45110
#define WM3_LP_EN (1<<31)
#define WM1S_LP_ILK 0x45120
+#define WM2S_LP_IVB 0x45124
+#define WM3S_LP_IVB 0x45128
#define WM1S_LP_EN (1<<31)
/* Memory latency timer register */
@@ -2666,6 +2668,131 @@
#define _DSPBSURF 0x7119C
#define _DSPBTILEOFF 0x711A4
+/* Sprite A control */
+#define _DVSACNTR 0x72180
+#define DVS_ENABLE (1<<31)
+#define DVS_GAMMA_ENABLE (1<<30)
+#define DVS_PIXFORMAT_MASK (3<<25)
+#define DVS_FORMAT_YUV422 (0<<25)
+#define DVS_FORMAT_RGBX101010 (1<<25)
+#define DVS_FORMAT_RGBX888 (2<<25)
+#define DVS_FORMAT_RGBX161616 (3<<25)
+#define DVS_SOURCE_KEY (1<<22)
+#define DVS_RGB_ORDER_RGBX (1<<20)
+#define DVS_YUV_BYTE_ORDER_MASK (3<<16)
+#define DVS_YUV_ORDER_YUYV (0<<16)
+#define DVS_YUV_ORDER_UYVY (1<<16)
+#define DVS_YUV_ORDER_YVYU (2<<16)
+#define DVS_YUV_ORDER_VYUY (3<<16)
+#define DVS_DEST_KEY (1<<2)
+#define DVS_TRICKLE_FEED_DISABLE (1<<14)
+#define DVS_TILED (1<<10)
+#define _DVSASTRIDE 0x72188
+#define _DVSAPOS 0x7218c
+#define _DVSASIZE 0x72190
+#define _DVSAKEYVAL 0x72194
+#define _DVSAKEYMSK 0x72198
+#define _DVSASURF 0x7219c
+#define _DVSAKEYMAXVAL 0x721a0
+#define _DVSATILEOFF 0x721a4
+#define _DVSASURFLIVE 0x721ac
+#define _DVSASCALE 0x72204
+#define DVS_SCALE_ENABLE (1<<31)
+#define DVS_FILTER_MASK (3<<29)
+#define DVS_FILTER_MEDIUM (0<<29)
+#define DVS_FILTER_ENHANCING (1<<29)
+#define DVS_FILTER_SOFTENING (2<<29)
+#define DVS_VERTICAL_OFFSET_HALF (1<<28) /* must be enabled below */
+#define DVS_VERTICAL_OFFSET_ENABLE (1<<27)
+#define _DVSAGAMC 0x72300
+
+#define _DVSBCNTR 0x73180
+#define _DVSBSTRIDE 0x73188
+#define _DVSBPOS 0x7318c
+#define _DVSBSIZE 0x73190
+#define _DVSBKEYVAL 0x73194
+#define _DVSBKEYMSK 0x73198
+#define _DVSBSURF 0x7319c
+#define _DVSBKEYMAXVAL 0x731a0
+#define _DVSBTILEOFF 0x731a4
+#define _DVSBSURFLIVE 0x731ac
+#define _DVSBSCALE 0x73204
+#define _DVSBGAMC 0x73300
+
+#define DVSCNTR(pipe) _PIPE(pipe, _DVSACNTR, _DVSBCNTR)
+#define DVSSTRIDE(pipe) _PIPE(pipe, _DVSASTRIDE, _DVSBSTRIDE)
+#define DVSPOS(pipe) _PIPE(pipe, _DVSAPOS, _DVSBPOS)
+#define DVSSURF(pipe) _PIPE(pipe, _DVSASURF, _DVSBSURF)
+#define DVSSIZE(pipe) _PIPE(pipe, _DVSASIZE, _DVSBSIZE)
+#define DVSSCALE(pipe) _PIPE(pipe, _DVSASCALE, _DVSBSCALE)
+#define DVSTILEOFF(pipe) _PIPE(pipe, _DVSATILEOFF, _DVSBTILEOFF)
+
+#define _SPRA_CTL 0x70280
+#define SPRITE_ENABLE (1<<31)
+#define SPRITE_GAMMA_ENABLE (1<<30)
+#define SPRITE_PIXFORMAT_MASK (7<<25)
+#define SPRITE_FORMAT_YUV422 (0<<25)
+#define SPRITE_FORMAT_RGBX101010 (1<<25)
+#define SPRITE_FORMAT_RGBX888 (2<<25)
+#define SPRITE_FORMAT_RGBX161616 (3<<25)
+#define SPRITE_FORMAT_YUV444 (4<<25)
+#define SPRITE_FORMAT_XR_BGR101010 (5<<25)
+#define SPRITE_CSC_ENABLE (1<<24)
+#define SPRITE_SOURCE_KEY (1<<22)
+#define SPRITE_RGB_ORDER_RGBX (1<<20) /* only for 888 and
161616 */
+#define SPRITE_YUV_TO_RGB_CSC_DISABLE (1<<19)
+#define SPRITE_YUV_CSC_FORMAT_BT709 (1<<18) /* 0 is BT601 */
+#define SPRITE_YUV_BYTE_ORDER_MASK (3<<16)
+#define SPRITE_YUV_ORDER_YUYV (0<<16)
+#define SPRITE_YUV_ORDER_UYVY (1<<16)
+#define SPRITE_YUV_ORDER_YVYU (2<<16)
+#define SPRITE_YUV_ORDER_VYUY (3<<16)
+#define SPRITE_TRICKLE_FEED_DISABLE (1<<14)
+#define SPRITE_INT_GAMMA_ENABLE (1<<13)
+#define SPRITE_TILED (1<<10)
+#define SPRITE_DEST_KEY (1<<2)
+#define _SPRA_STRIDE 0x70288
+#define _SPRA_POS 0x7028c
+#define _SPRA_SIZE 0x70290
+#define _SPRA_KEYVAL 0x70294
+#define _SPRA_KEYMSK 0x70298
+#define _SPRA_SURF 0x7029c
+#define _SPRA_KEYMAX 0x702a0
+#define _SPRA_TILEOFF 0x702a4
+#define _SPRA_SCALE 0x70304
+#define SPRITE_SCALE_ENABLE (1<<31)
+#define SPRITE_FILTER_MASK (3<<29)
+#define SPRITE_FILTER_MEDIUM (0<<29)
+#define SPRITE_FILTER_ENHANCING (1<<29)
+#define SPRITE_FILTER_SOFTENING (2<<29)
+#define SPRITE_VERTICAL_OFFSET_HALF (1<<28) /* must be enabled below */
+#define SPRITE_VERTICAL_OFFSET_ENABLE (1<<27)
+#define _SPRA_GAMC 0x70400
+
+#define _SPRB_CTL 0x71280
+#define _SPRB_STRIDE 0x71288
+#define _SPRB_POS 0x7128c
+#define _SPRB_SIZE 0x71290
+#define _SPRB_KEYVAL 0x71294
+#define _SPRB_KEYMSK 0x71298
+#define _SPRB_SURF 0x7129c
+#define _SPRB_KEYMAX 0x712a0
+#define _SPRB_TILEOFF 0x712a4
+#define _SPRB_SCALE 0x71304
+#define _SPRB_GAMC 0x71400
+
+#define SPRCTL(pipe) _PIPE(pipe, _SPRA_CTL, _SPRB_CTL)
+#define SPRSTRIDE(pipe) _PIPE(pipe, _SPRA_STRIDE, _SPRB_STRIDE)
+#define SPRPOS(pipe) _PIPE(pipe, _SPRA_POS, _SPRB_POS)
+#define SPRSIZE(pipe) _PIPE(pipe, _SPRA_SIZE, _SPRB_SIZE)
+#define SPRKEYVAL(pipe) _PIPE(pipe, _SPRA_KEYVAL, _SPRB_KEYVAL)
+#define SPRKEYMSK(pipe) _PIPE(pipe, _SPRA_KEYMSK, _SPRB_KEYMSK)
+#define SPRSURF(pipe) _PIPE(pipe, _SPRA_SURF, _SPRB_SURF)
+#define SPRKEYMAX(pipe) _PIPE(pipe, _SPRA_KEYMAX, _SPRB_KEYMAX)
+#define SPRTILEOFF(pipe) _PIPE(pipe, _SPRA_TILEOFF, _SPRB_TILEOFF)
+#define SPRSCALE(pipe) _PIPE(pipe, _SPRA_SCALE, _SPRB_SCALE)
+#define SPRGAMC(pipe) _PIPE(pipe, _SPRA_GAMC, _SPRB_GAMC)
+
/* 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 d3b2259..3f165d3 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -915,8 +915,8 @@ static void assert_panel_unlocked(struct drm_i915_private
*dev_priv,
pipe_name(pipe));
}
-static void assert_pipe(struct drm_i915_private *dev_priv,
- enum pipe pipe, bool state)
+void assert_pipe(struct drm_i915_private *dev_priv,
+ enum pipe pipe, bool state)
{
int reg;
u32 val;
@@ -929,8 +929,6 @@ static void assert_pipe(struct drm_i915_private *dev_priv,
"pipe %c assertion failure (expected %s, current %s)\n",
pipe_name(pipe), state_string(state), state_string(cur_state));
}
-#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
-#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
static void assert_plane_enabled(struct drm_i915_private *dev_priv,
enum plane plane)
@@ -4439,7 +4437,8 @@ static void ironlake_update_wm(struct drm_device *dev)
ILK_LP0_CURSOR_LATENCY,
&plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEA_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) |
+ (plane_wm << WM0_PIPE_SPRITE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
" plane %d, " "cursor: %d\n",
plane_wm, cursor_wm);
@@ -4453,7 +4452,8 @@ static void ironlake_update_wm(struct drm_device *dev)
ILK_LP0_CURSOR_LATENCY,
&plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEB_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) |
+ (plane_wm << WM0_PIPE_SPRITE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
" plane %d, cursor: %d\n",
plane_wm, cursor_wm);
@@ -4521,7 +4521,8 @@ static void sandybridge_update_wm(struct drm_device *dev)
&sandybridge_cursor_wm_info, latency,
&plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEA_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) |
+ (plane_wm << WM0_PIPE_SPRITE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
" plane %d, " "cursor: %d\n",
plane_wm, cursor_wm);
@@ -4533,7 +4534,8 @@ static void sandybridge_update_wm(struct drm_device *dev)
&sandybridge_cursor_wm_info, latency,
&plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEB_ILK,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) |
+ (plane_wm << WM0_PIPE_SPRITE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
" plane %d, cursor: %d\n",
plane_wm, cursor_wm);
@@ -4547,7 +4549,8 @@ static void sandybridge_update_wm(struct drm_device *dev)
&sandybridge_cursor_wm_info, latency,
&plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEC_IVB,
- (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) |
+ (plane_wm << WM0_PIPE_SPRITE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe C -"
" plane %d, cursor: %d\n",
plane_wm, cursor_wm);
@@ -8694,7 +8697,7 @@ static void i915_disable_vga(struct drm_device *dev)
void intel_modeset_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- int i;
+ int i, ret;
drm_mode_config_init(dev);
@@ -8724,6 +8727,12 @@ void intel_modeset_init(struct drm_device *dev)
for (i = 0; i < dev_priv->num_pipe; i++) {
intel_crtc_init(dev, i);
+ if (HAS_PCH_SPLIT(dev)) {
+ ret = intel_plane_init(dev, i);
+ if (ret)
+ DRM_ERROR("plane %d init failed: %d\n",
+ i, ret);
+ }
}
/* Just disable it once at startup */
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 23c5622..f91de00 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -176,10 +176,27 @@ struct intel_crtc {
bool use_pll_a;
};
+struct intel_plane {
+ struct drm_plane base;
+ enum pipe pipe;
+ struct drm_i915_gem_object *obj;
+ int max_downscale;
+ u32 lut_r[1024], lut_g[1024], lut_b[1024];
+ void (*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,
+ uint32_t x, uint32_t y,
+ uint32_t src_w, uint32_t src_h);
+ void (*disable_plane)(struct drm_plane *plane);
+};
+
#define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
#define to_intel_connector(x) container_of(x, struct intel_connector, base)
#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
#define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
+#define to_intel_plane(x) container_of(x, struct intel_plane, base)
#define DIP_HEADER_SIZE 5
@@ -289,6 +306,7 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct
drm_display_mode *mode,
extern bool intel_dpd_is_edp(struct drm_device *dev);
extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
+extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
/* intel_panel.c */
extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
@@ -379,6 +397,11 @@ extern int intel_overlay_attrs(struct drm_device *dev,
void *data,
extern void intel_fb_output_poll_changed(struct drm_device *dev);
extern void intel_fb_restore_mode(struct drm_device *dev);
+extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
+ bool state);
+#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
+#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
+
extern void intel_init_clock_gating(struct drm_device *dev);
extern void intel_write_eld(struct drm_encoder *encoder,
struct drm_display_mode *mode);
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index dc1db4f..068b086 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -270,8 +270,14 @@ void intel_fb_restore_mode(struct drm_device *dev)
{
int ret;
drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_plane *plane;
ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
+
+ /* Be sure to shut off any planes that may be active */
+ list_for_each_entry(plane, &config->plane_list, head)
+ plane->funcs->disable_plane(plane);
}
diff --git a/drivers/gpu/drm/i915/intel_sprite.c
b/drivers/gpu/drm/i915/intel_sprite.c
new file mode 100644
index 0000000..d8ae3e4
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -0,0 +1,425 @@
+/*
+ * 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 <jbar...@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 "drmP.h"
+#include "drm_crtc.h"
+#include "drm_fourcc.h"
+#include "intel_drv.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+/*
+ * Note on refcounting:
+ * When the user creates an fb for the GEM object to be used for the plane,
+ * a ref is taken on the object. However, if the application exits before
+ * disabling the plane, the DRM close handling will free all the fbs and
+ * unless we take a ref on the object, it will be destroyed before the
+ * plane disable hook is called, causing obvious trouble with our efforts
+ * to look up and unpin the object. So we take a ref after we move the
+ * object to the display plane so it won't be destroyed until our disable
+ * hook is called and we drop our private reference.
+ */
+
+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,
+ uint32_t x, uint32_t y,
+ uint32_t src_w, uint32_t src_h)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ int pipe = intel_plane->pipe;
+ u32 sprctl, sprscale = 0;
+
+ sprctl = I915_READ(SPRCTL(pipe));
+
+ /* Mask out pixel format bits in case we change it */
+ sprctl &= ~(SPRITE_DEST_KEY | SPRITE_SOURCE_KEY);
+ sprctl &= ~SPRITE_PIXFORMAT_MASK;
+ sprctl &= ~SPRITE_RGB_ORDER_RGBX;
+ sprctl &= ~SPRITE_YUV_BYTE_ORDER_MASK;
+
+ switch (fb->pixel_format) {
+ case DRM_FOURCC_BGR32:
+ sprctl |= SPRITE_FORMAT_RGBX888;
+ break;
+ case DRM_FOURCC_RGB32:
+ sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
+ break;
+ case DRM_FOURCC_YUYV:
+ sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
+ break;
+ case DRM_FOURCC_YVYU:
+ sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
+ break;
+ case DRM_FOURCC_UYVY:
+ sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
+ break;
+ case DRM_FOURCC_VYUY:
+ sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
+ sprctl |= DVS_FORMAT_RGBX888;
+ break;
+ }
+
+ sprctl |= SPRITE_TILED;
+
+ /* must disable */
+ sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
+ sprctl |= SPRITE_ENABLE;
+
+ /* Sizes are 0 based */
+ src_w--;
+ src_h--;
+ crtc_w--;
+ crtc_h--;
+
+ /* Adjust watermarks as needed */
+ I915_WRITE(WM1S_LP_ILK, 0x100);
+ I915_WRITE(WM2S_LP_IVB, 0x100);
+ I915_WRITE(WM3S_LP_IVB, 0x100);
+
+ if (crtc_w != src_w || crtc_h != src_h)
+ sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
+
+ I915_WRITE(SPRSTRIDE(pipe), fb->pitch);
+ I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
+ I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
+ I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
+ I915_WRITE(SPRSCALE(pipe), sprscale);
+ I915_WRITE(SPRCTL(pipe), sprctl);
+ I915_WRITE(SPRSURF(pipe), obj->gtt_offset);
+ POSTING_READ(SPRSURF(pipe));
+}
+
+static void
+ivb_disable_plane(struct drm_plane *plane)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ int pipe = intel_plane->pipe;
+
+ I915_WRITE(SPRCTL(pipe), I915_READ(SPRCTL(pipe)) & ~SPRITE_ENABLE);
+ /* Can't leave the scaler enabled... */
+ I915_WRITE(SPRSCALE(pipe), 0);
+ /* Activate double buffered register update */
+ I915_WRITE(SPRSURF(pipe), 0);
+ POSTING_READ(SPRSURF(pipe));
+}
+
+static void
+snb_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,
+ uint32_t x, uint32_t y,
+ uint32_t src_w, uint32_t src_h)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ int pipe = intel_plane->pipe;
+ u32 dvscntr, dvsscale = 0;
+
+ dvscntr = I915_READ(DVSCNTR(pipe));
+
+ /* Mask out pixel format bits in case we change it */
+ dvscntr &= ~(DVS_DEST_KEY | DVS_SOURCE_KEY);
+ dvscntr &= ~DVS_PIXFORMAT_MASK;
+ dvscntr &= ~DVS_RGB_ORDER_RGBX;
+ dvscntr &= ~DVS_YUV_BYTE_ORDER_MASK;
+
+ switch (fb->pixel_format) {
+ case DRM_FOURCC_BGR32:
+ dvscntr |= DVS_FORMAT_RGBX888;
+ break;
+ case DRM_FOURCC_RGB32:
+ dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_RGBX;
+ break;
+ case DRM_FOURCC_YUYV:
+ dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
+ break;
+ case DRM_FOURCC_YVYU:
+ dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
+ break;
+ case DRM_FOURCC_UYVY:
+ dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
+ break;
+ case DRM_FOURCC_VYUY:
+ dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
+ dvscntr |= DVS_FORMAT_RGBX888;
+ break;
+ }
+
+ dvscntr |= DVS_TILED;
+
+ /* must disable */
+ dvscntr |= DVS_TRICKLE_FEED_DISABLE;
+ dvscntr |= DVS_ENABLE;
+
+ /* Sizes are 0 based */
+ src_w--;
+ src_h--;
+ crtc_w--;
+ crtc_h--;
+
+ if (crtc_w != src_w || crtc_h != src_h)
+ dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
+
+ I915_WRITE(DVSSTRIDE(pipe), fb->pitch);
+ I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
+ I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
+ I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
+ I915_WRITE(DVSSCALE(pipe), dvsscale);
+ I915_WRITE(DVSCNTR(pipe), dvscntr);
+ I915_WRITE(DVSSURF(pipe), obj->gtt_offset);
+ POSTING_READ(DVSSURF(pipe));
+}
+
+static void
+snb_disable_plane(struct drm_plane *plane)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ int pipe = intel_plane->pipe;
+
+ I915_WRITE(DVSCNTR(pipe), I915_READ(DVSCNTR(pipe)) & ~DVS_ENABLE);
+ /* Disable the scaler */
+ I915_WRITE(DVSSCALE(pipe), 0);
+ /* Flush double buffered register updates */
+ I915_WRITE(DVSSURF(pipe), 0);
+ POSTING_READ(DVSSURF(pipe));
+}
+
+static int
+intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ struct intel_framebuffer *intel_fb;
+ struct drm_i915_gem_object *obj, *old_obj;
+ int pipe = intel_plane->pipe;
+ int ret = 0;
+ int x = src_x >> 16, y = src_y >> 16;
+ int primary_w = crtc->mode.hdisplay, primary_h = crtc->mode.vdisplay;
+ bool disable_primary = false;
+
+ intel_fb = to_intel_framebuffer(fb);
+ obj = intel_fb->obj;
+
+ old_obj = intel_plane->obj;
+
+ /* Pipe must be running... */
+ if (!(I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE))
+ return -EINVAL;
+
+ if (crtc_x >= primary_w || crtc_y >= primary_h)
+ return -EINVAL;
+
+ /* Don't modify another pipe's plane */
+ if (intel_plane->pipe != intel_crtc->pipe)
+ return -EINVAL;
+
+ /*
+ * Clamp the width & height into the visible area. Note we don't
+ * try to scale the source if part of the visible region is offscreen.
+ * The caller must handle that by adjusting source offset and size.
+ */
+ if (crtc_x < 0) {
+ crtc_w += crtc_x;
+ crtc_x = 0;
+ }
+ if (crtc_x + crtc_w > primary_w)
+ crtc_w = primary_w - crtc_x;
+
+ if (crtc_y < 0) {
+ crtc_h += crtc_y;
+ crtc_y = 0;
+ }
+ if (crtc_y + crtc_h > primary_h)
+ crtc_h = primary_h - crtc_y;
+
+ /*
+ * We can take a larger source and scale it down, but
+ * only so much... 16x is the max on SNB.
+ */
+ if (((src_w * src_h) / (crtc_w * crtc_h)) > intel_plane->max_downscale)
+ return -EINVAL;
+
+ /*
+ * If the sprite is completely covering the primary plane,
+ * we can disable the primary and save power.
+ */
+ if ((crtc_x == 0) && (crtc_y == 0) &&
+ (crtc_w == primary_w) && (crtc_h == primary_h))
+ disable_primary = true;
+
+
+ if (obj->tiling_mode != I915_TILING_X) {
+ DRM_ERROR("plane surfaces must be X tiled\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ mutex_lock(&dev->struct_mutex);
+
+ ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+ if (ret) {
+ DRM_ERROR("failed to pin object\n");
+ goto out_unlock;
+ }
+
+ drm_gem_object_reference(&obj->base);
+
+ intel_plane->obj = obj;
+
+ intel_plane->update_plane(plane, fb, obj, crtc_x, crtc_y,
+ crtc_w, crtc_h, x, y, src_w, src_h);
+
+ /* Unpin old obj after new one is active to avoid ugliness */
+ if (old_obj) {
+ /*
+ * It's fairly common to simply update the position of
+ * an existing object. In that case, we don't need to
+ * wait for vblank to avoid ugliness, we only need to
+ * do the pin & ref bookkeeping.
+ */
+ if (old_obj != obj) {
+ mutex_unlock(&dev->struct_mutex);
+ intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
+ mutex_lock(&dev->struct_mutex);
+ }
+ i915_gem_object_unpin(old_obj);
+ drm_gem_object_unreference(&old_obj->base);
+ }
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+out:
+ return ret;
+}
+
+static int
+intel_disable_plane(struct drm_plane *plane)
+{
+ struct drm_device *dev = plane->dev;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ int ret = 0;
+
+ intel_plane->disable_plane(plane);
+
+ if (!intel_plane->obj)
+ goto out;
+
+ mutex_lock(&dev->struct_mutex);
+ i915_gem_object_unpin(intel_plane->obj);
+ drm_gem_object_unreference(&intel_plane->obj->base);
+ intel_plane->obj = NULL;
+ mutex_unlock(&dev->struct_mutex);
+out:
+
+ return ret;
+}
+
+static void intel_destroy_plane(struct drm_plane *plane)
+{
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ intel_disable_plane(plane);
+ drm_plane_cleanup(plane);
+ kfree(intel_plane);
+}
+
+static const struct drm_plane_funcs intel_plane_funcs = {
+ .update_plane = intel_update_plane,
+ .disable_plane = intel_disable_plane,
+ .destroy = intel_destroy_plane,
+};
+
+static uint32_t snb_plane_formats[] = {
+ DRM_FOURCC_BGR32,
+ DRM_FOURCC_RGB32,
+ DRM_FOURCC_YUYV,
+ DRM_FOURCC_YVYU,
+ DRM_FOURCC_UYVY,
+ DRM_FOURCC_VYUY,
+};
+
+int
+intel_plane_init(struct drm_device *dev, enum pipe pipe)
+{
+ struct intel_plane *intel_plane;
+ unsigned long possible_crtcs;
+ int ret;
+
+ if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
+ DRM_ERROR("new plane code only for SNB+\n");
+ return -ENODEV;
+ }
+
+ intel_plane = kzalloc(sizeof(struct intel_plane), GFP_KERNEL);
+ if (!intel_plane)
+ return -ENOMEM;
+
+ if (IS_GEN6(dev)) {
+ intel_plane->max_downscale = 16;
+ intel_plane->update_plane = snb_update_plane;
+ intel_plane->disable_plane = snb_disable_plane;
+ } else if (IS_GEN7(dev)) {
+ intel_plane->max_downscale = 2;
+ intel_plane->update_plane = ivb_update_plane;
+ intel_plane->disable_plane = ivb_disable_plane;
+ }
+
+ intel_plane->pipe = pipe;
+ possible_crtcs = (1 << pipe);
+ ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
+ &intel_plane_funcs, snb_plane_formats,
+ ARRAY_SIZE(snb_plane_formats));
+ if (ret)
+ kfree(intel_plane);
+
+ return ret;
+}
+
--
1.7.4.1
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