Commit b840d907 authored by Jesse Barnes's avatar Jesse Barnes Committed by Keith Packard

drm/i915: add SNB and IVB video sprite support v6

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.
v4: more fixes, address more comments from Daniel, and include Hai's fix
  - prevent divide by zero in scaling calculation (Hai Lan)
  - update to Ville's new DRM_FORMAT_* types
  - fix sprite watermark handling (calc based on CRTC size, separate
    from normal display wm)
  - remove private refcounts now that the fb cleanups handles things
v5: add linear surface support
v6: remove color key clearing & setting from update_plane

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.
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarKeith Packard <keithp@keithp.com>
parent c7dffff7
......@@ -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 \
......
......@@ -207,6 +207,8 @@ struct drm_i915_display_funcs {
int (*get_display_clock_speed)(struct drm_device *dev);
int (*get_fifo_size)(struct drm_device *dev, int plane);
void (*update_wm)(struct drm_device *dev);
void (*update_sprite_wm)(struct drm_device *dev, int pipe,
uint32_t sprite_width, int pixel_size);
int (*crtc_mode_set)(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode,
......@@ -352,6 +354,7 @@ typedef struct drm_i915_private {
/* overlay */
struct intel_overlay *overlay;
bool sprite_scaling_enabled;
/* LVDS info */
int backlight_level; /* restore backlight to this value */
......
......@@ -2461,6 +2461,8 @@
#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 */
......@@ -2677,6 +2679,137 @@
#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 _DVSALINOFF 0x72184
#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 _DVSBLINOFF 0x73184
#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 DVSLINOFF(pipe) _PIPE(pipe, _DVSALINOFF, _DVSBLINOFF)
#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) /* Extended range */
#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_LINOFF 0x70284
#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_LINOFF 0x71284
#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 SPRLINOFF(pipe) _PIPE(pipe, _SPRA_LINOFF, _SPRB_LINOFF)
#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)
......
......@@ -915,7 +915,7 @@ static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
pipe_name(pipe));
}
static void assert_pipe(struct drm_i915_private *dev_priv,
void assert_pipe(struct drm_i915_private *dev_priv,
enum pipe pipe, bool state)
{
int reg;
......@@ -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)
......@@ -4509,7 +4507,7 @@ static void ironlake_update_wm(struct drm_device *dev)
*/
}
static void sandybridge_update_wm(struct drm_device *dev)
void sandybridge_update_wm(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */
......@@ -4569,7 +4567,8 @@ static void sandybridge_update_wm(struct drm_device *dev)
I915_WRITE(WM2_LP_ILK, 0);
I915_WRITE(WM1_LP_ILK, 0);
if (!single_plane_enabled(enabled))
if (!single_plane_enabled(enabled) ||
dev_priv->sprite_scaling_enabled)
return;
enabled = ffs(enabled) - 1;
......@@ -4619,6 +4618,149 @@ static void sandybridge_update_wm(struct drm_device *dev)
cursor_wm);
}
static bool
sandybridge_compute_sprite_wm(struct drm_device *dev, int plane,
uint32_t sprite_width, int pixel_size,
const struct intel_watermark_params *display,
int display_latency_ns, int *sprite_wm)
{
struct drm_crtc *crtc;
int clock;
int entries, tlb_miss;
crtc = intel_get_crtc_for_plane(dev, plane);
if (crtc->fb == NULL || !crtc->enabled) {
*sprite_wm = display->guard_size;
return false;
}
clock = crtc->mode.clock;
/* Use the small buffer method to calculate the sprite watermark */
entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
tlb_miss = display->fifo_size*display->cacheline_size -
sprite_width * 8;
if (tlb_miss > 0)
entries += tlb_miss;
entries = DIV_ROUND_UP(entries, display->cacheline_size);
*sprite_wm = entries + display->guard_size;
if (*sprite_wm > (int)display->max_wm)
*sprite_wm = display->max_wm;
return true;
}
static bool
sandybridge_compute_sprite_srwm(struct drm_device *dev, int plane,
uint32_t sprite_width, int pixel_size,
const struct intel_watermark_params *display,
int latency_ns, int *sprite_wm)
{
struct drm_crtc *crtc;
unsigned long line_time_us;
int clock;
int line_count, line_size;
int small, large;
int entries;
if (!latency_ns) {
*sprite_wm = 0;
return false;
}
crtc = intel_get_crtc_for_plane(dev, plane);
clock = crtc->mode.clock;
line_time_us = (sprite_width * 1000) / clock;
line_count = (latency_ns / line_time_us + 1000) / 1000;
line_size = sprite_width * pixel_size;
/* Use the minimum of the small and large buffer method for primary */
small = ((clock * pixel_size / 1000) * latency_ns) / 1000;
large = line_count * line_size;
entries = DIV_ROUND_UP(min(small, large), display->cacheline_size);
*sprite_wm = entries + display->guard_size;
return *sprite_wm > 0x3ff ? false : true;
}
static void sandybridge_update_sprite_wm(struct drm_device *dev, int pipe,
uint32_t sprite_width, int pixel_size)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */
int sprite_wm, reg;
int ret;
switch (pipe) {
case 0:
reg = WM0_PIPEA_ILK;
break;
case 1:
reg = WM0_PIPEB_ILK;
break;
case 2:
reg = WM0_PIPEC_IVB;
break;
default:
return; /* bad pipe */
}
ret = sandybridge_compute_sprite_wm(dev, pipe, sprite_width, pixel_size,
&sandybridge_display_wm_info,
latency, &sprite_wm);
if (!ret) {
DRM_DEBUG_KMS("failed to compute sprite wm for pipe %d\n",
pipe);
return;
}
I915_WRITE(reg, I915_READ(reg) | (sprite_wm << WM0_PIPE_SPRITE_SHIFT));
DRM_DEBUG_KMS("sprite watermarks For pipe %d - %d\n", pipe, sprite_wm);
ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
pixel_size,
&sandybridge_display_srwm_info,
SNB_READ_WM1_LATENCY() * 500,
&sprite_wm);
if (!ret) {
DRM_DEBUG_KMS("failed to compute sprite lp1 wm on pipe %d\n",
pipe);
return;
}
I915_WRITE(WM1S_LP_ILK, sprite_wm);
/* Only IVB has two more LP watermarks for sprite */
if (!IS_IVYBRIDGE(dev))
return;
ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
pixel_size,
&sandybridge_display_srwm_info,
SNB_READ_WM2_LATENCY() * 500,
&sprite_wm);
if (!ret) {
DRM_DEBUG_KMS("failed to compute sprite lp2 wm on pipe %d\n",
pipe);
return;
}
I915_WRITE(WM2S_LP_IVB, sprite_wm);
ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
pixel_size,
&sandybridge_display_srwm_info,
SNB_READ_WM3_LATENCY() * 500,
&sprite_wm);
if (!ret) {
DRM_DEBUG_KMS("failed to compute sprite lp3 wm on pipe %d\n",
pipe);
return;
}
I915_WRITE(WM3S_LP_IVB, sprite_wm);
}
/**
* intel_update_watermarks - update FIFO watermark values based on current modes
*
......@@ -4659,6 +4801,16 @@ static void intel_update_watermarks(struct drm_device *dev)
dev_priv->display.update_wm(dev);
}
void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
uint32_t sprite_width, int pixel_size)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (dev_priv->display.update_sprite_wm)
dev_priv->display.update_sprite_wm(dev, pipe, sprite_width,
pixel_size);
}
static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
{
if (i915_panel_use_ssc >= 0)
......@@ -8631,6 +8783,7 @@ static void intel_init_display(struct drm_device *dev)
} else if (IS_GEN6(dev)) {
if (SNB_READ_WM0_LATENCY()) {
dev_priv->display.update_wm = sandybridge_update_wm;
dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm;
} else {
DRM_DEBUG_KMS("Failed to read display plane latency. "
"Disable CxSR\n");
......@@ -8644,6 +8797,7 @@ static void intel_init_display(struct drm_device *dev)
dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
if (SNB_READ_WM0_LATENCY()) {
dev_priv->display.update_wm = sandybridge_update_wm;
dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm;
} else {
DRM_DEBUG_KMS("Failed to read display plane latency. "
"Disable CxSR\n");
......@@ -8827,7 +8981,7 @@ 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);
......@@ -8857,6 +9011,12 @@ 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 */
......
......@@ -177,10 +177,27 @@ 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
......@@ -290,6 +307,7 @@ 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,
......@@ -380,9 +398,19 @@ 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);
extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
/* For use by IVB LP watermark workaround in intel_sprite.c */
extern void sandybridge_update_wm(struct drm_device *dev);
extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
uint32_t sprite_width,
int pixel_size);
#endif /* __INTEL_DRV_H__ */
......@@ -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);
}
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