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path: root/drivers/gpu/drm/i915/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c1222
1 files changed, 930 insertions, 292 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fca523288aca..98967f3b7724 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -642,26 +642,23 @@ static const intel_limit_t intel_limits_ironlake_display_port = {
.find_pll = intel_find_pll_ironlake_dp,
};
-static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc)
+static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
+ int refclk)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
const intel_limit_t *limit;
- int refclk = 120;
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
- if (dev_priv->lvds_use_ssc && dev_priv->lvds_ssc_freq == 100)
- refclk = 100;
-
if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) ==
LVDS_CLKB_POWER_UP) {
/* LVDS dual channel */
- if (refclk == 100)
+ if (refclk == 100000)
limit = &intel_limits_ironlake_dual_lvds_100m;
else
limit = &intel_limits_ironlake_dual_lvds;
} else {
- if (refclk == 100)
+ if (refclk == 100000)
limit = &intel_limits_ironlake_single_lvds_100m;
else
limit = &intel_limits_ironlake_single_lvds;
@@ -702,13 +699,13 @@ static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
return limit;
}
-static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
+static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
{
struct drm_device *dev = crtc->dev;
const intel_limit_t *limit;
if (HAS_PCH_SPLIT(dev))
- limit = intel_ironlake_limit(crtc);
+ limit = intel_ironlake_limit(crtc, refclk);
else if (IS_G4X(dev)) {
limit = intel_g4x_limit(crtc);
} else if (IS_PINEVIEW(dev)) {
@@ -773,11 +770,10 @@ bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
* the given connectors.
*/
-static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock)
+static bool intel_PLL_is_valid(struct drm_device *dev,
+ const intel_limit_t *limit,
+ const intel_clock_t *clock)
{
- const intel_limit_t *limit = intel_limit (crtc);
- struct drm_device *dev = crtc->dev;
-
if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
INTELPllInvalid ("p1 out of range\n");
if (clock->p < limit->p.min || limit->p.max < clock->p)
@@ -849,8 +845,8 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
int this_err;
intel_clock(dev, refclk, &clock);
-
- if (!intel_PLL_is_valid(crtc, &clock))
+ if (!intel_PLL_is_valid(dev, limit,
+ &clock))
continue;
this_err = abs(clock.dot - target);
@@ -912,9 +908,11 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
int this_err;
intel_clock(dev, refclk, &clock);
- if (!intel_PLL_is_valid(crtc, &clock))
+ if (!intel_PLL_is_valid(dev, limit,
+ &clock))
continue;
- this_err = abs(clock.dot - target) ;
+
+ this_err = abs(clock.dot - target);
if (this_err < err_most) {
*best_clock = clock;
err_most = this_err;
@@ -1066,13 +1064,13 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_framebuffer *fb = crtc->fb;
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int plane, i;
u32 fbc_ctl, fbc_ctl2;
if (fb->pitch == dev_priv->cfb_pitch &&
- obj_priv->fence_reg == dev_priv->cfb_fence &&
+ obj->fence_reg == dev_priv->cfb_fence &&
intel_crtc->plane == dev_priv->cfb_plane &&
I915_READ(FBC_CONTROL) & FBC_CTL_EN)
return;
@@ -1086,7 +1084,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
/* FBC_CTL wants 64B units */
dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj_priv->fence_reg;
+ dev_priv->cfb_fence = obj->fence_reg;
dev_priv->cfb_plane = intel_crtc->plane;
plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB;
@@ -1096,7 +1094,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
/* Set it up... */
fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane;
- if (obj_priv->tiling_mode != I915_TILING_NONE)
+ if (obj->tiling_mode != I915_TILING_NONE)
fbc_ctl2 |= FBC_CTL_CPU_FENCE;
I915_WRITE(FBC_CONTROL2, fbc_ctl2);
I915_WRITE(FBC_FENCE_OFF, crtc->y);
@@ -1107,7 +1105,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */
fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT;
- if (obj_priv->tiling_mode != I915_TILING_NONE)
+ if (obj->tiling_mode != I915_TILING_NONE)
fbc_ctl |= dev_priv->cfb_fence;
I915_WRITE(FBC_CONTROL, fbc_ctl);
@@ -1150,7 +1148,7 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_framebuffer *fb = crtc->fb;
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
unsigned long stall_watermark = 200;
@@ -1159,7 +1157,7 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
dpfc_ctl = I915_READ(DPFC_CONTROL);
if (dpfc_ctl & DPFC_CTL_EN) {
if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
- dev_priv->cfb_fence == obj_priv->fence_reg &&
+ dev_priv->cfb_fence == obj->fence_reg &&
dev_priv->cfb_plane == intel_crtc->plane &&
dev_priv->cfb_y == crtc->y)
return;
@@ -1170,12 +1168,12 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
}
dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj_priv->fence_reg;
+ dev_priv->cfb_fence = obj->fence_reg;
dev_priv->cfb_plane = intel_crtc->plane;
dev_priv->cfb_y = crtc->y;
dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X;
- if (obj_priv->tiling_mode != I915_TILING_NONE) {
+ if (obj->tiling_mode != I915_TILING_NONE) {
dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence;
I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY);
} else {
@@ -1221,7 +1219,7 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_framebuffer *fb = crtc->fb;
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB;
unsigned long stall_watermark = 200;
@@ -1230,9 +1228,9 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
if (dpfc_ctl & DPFC_CTL_EN) {
if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 &&
- dev_priv->cfb_fence == obj_priv->fence_reg &&
+ dev_priv->cfb_fence == obj->fence_reg &&
dev_priv->cfb_plane == intel_crtc->plane &&
- dev_priv->cfb_offset == obj_priv->gtt_offset &&
+ dev_priv->cfb_offset == obj->gtt_offset &&
dev_priv->cfb_y == crtc->y)
return;
@@ -1242,14 +1240,14 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
}
dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1;
- dev_priv->cfb_fence = obj_priv->fence_reg;
+ dev_priv->cfb_fence = obj->fence_reg;
dev_priv->cfb_plane = intel_crtc->plane;
- dev_priv->cfb_offset = obj_priv->gtt_offset;
+ dev_priv->cfb_offset = obj->gtt_offset;
dev_priv->cfb_y = crtc->y;
dpfc_ctl &= DPFC_RESERVED;
dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X);
- if (obj_priv->tiling_mode != I915_TILING_NONE) {
+ if (obj->tiling_mode != I915_TILING_NONE) {
dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence);
I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY);
} else {
@@ -1260,10 +1258,16 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
(stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
(interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y);
- I915_WRITE(ILK_FBC_RT_BASE, obj_priv->gtt_offset | ILK_FBC_RT_VALID);
+ I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID);
/* enable it... */
I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
+ if (IS_GEN6(dev)) {
+ I915_WRITE(SNB_DPFC_CTL_SA,
+ SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence);
+ I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y);
+ }
+
DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
}
@@ -1345,7 +1349,7 @@ static void intel_update_fbc(struct drm_device *dev)
struct intel_crtc *intel_crtc;
struct drm_framebuffer *fb;
struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj_priv;
+ struct drm_i915_gem_object *obj;
DRM_DEBUG_KMS("\n");
@@ -1384,9 +1388,9 @@ static void intel_update_fbc(struct drm_device *dev)
intel_crtc = to_intel_crtc(crtc);
fb = crtc->fb;
intel_fb = to_intel_framebuffer(fb);
- obj_priv = to_intel_bo(intel_fb->obj);
+ obj = intel_fb->obj;
- if (intel_fb->obj->size > dev_priv->cfb_size) {
+ if (intel_fb->obj->base.size > dev_priv->cfb_size) {
DRM_DEBUG_KMS("framebuffer too large, disabling "
"compression\n");
dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
@@ -1410,7 +1414,7 @@ static void intel_update_fbc(struct drm_device *dev)
dev_priv->no_fbc_reason = FBC_BAD_PLANE;
goto out_disable;
}
- if (obj_priv->tiling_mode != I915_TILING_X) {
+ if (obj->tiling_mode != I915_TILING_X) {
DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n");
dev_priv->no_fbc_reason = FBC_NOT_TILED;
goto out_disable;
@@ -1433,14 +1437,13 @@ out_disable:
int
intel_pin_and_fence_fb_obj(struct drm_device *dev,
- struct drm_gem_object *obj,
- bool pipelined)
+ struct drm_i915_gem_object *obj,
+ struct intel_ring_buffer *pipelined)
{
- struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
u32 alignment;
int ret;
- switch (obj_priv->tiling_mode) {
+ switch (obj->tiling_mode) {
case I915_TILING_NONE:
if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
alignment = 128 * 1024;
@@ -1461,7 +1464,7 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev,
BUG();
}
- ret = i915_gem_object_pin(obj, alignment);
+ ret = i915_gem_object_pin(obj, alignment, true);
if (ret)
return ret;
@@ -1474,9 +1477,8 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev,
* framebuffer compression. For simplicity, we always install
* a fence as the cost is not that onerous.
*/
- if (obj_priv->fence_reg == I915_FENCE_REG_NONE &&
- obj_priv->tiling_mode != I915_TILING_NONE) {
- ret = i915_gem_object_get_fence_reg(obj, false);
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ ret = i915_gem_object_get_fence(obj, pipelined, false);
if (ret)
goto err_unpin;
}
@@ -1497,8 +1499,7 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj_priv;
- struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj;
int plane = intel_crtc->plane;
unsigned long Start, Offset;
u32 dspcntr;
@@ -1515,7 +1516,6 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
intel_fb = to_intel_framebuffer(fb);
obj = intel_fb->obj;
- obj_priv = to_intel_bo(obj);
reg = DSPCNTR(plane);
dspcntr = I915_READ(reg);
@@ -1540,7 +1540,7 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
return -EINVAL;
}
if (INTEL_INFO(dev)->gen >= 4) {
- if (obj_priv->tiling_mode != I915_TILING_NONE)
+ if (obj->tiling_mode != I915_TILING_NONE)
dspcntr |= DISPPLANE_TILED;
else
dspcntr &= ~DISPPLANE_TILED;
@@ -1552,7 +1552,7 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
I915_WRITE(reg, dspcntr);
- Start = obj_priv->gtt_offset;
+ Start = obj->gtt_offset;
Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
@@ -1598,7 +1598,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
mutex_lock(&dev->struct_mutex);
ret = intel_pin_and_fence_fb_obj(dev,
to_intel_framebuffer(crtc->fb)->obj,
- false);
+ NULL);
if (ret != 0) {
mutex_unlock(&dev->struct_mutex);
return ret;
@@ -1606,18 +1606,17 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
if (old_fb) {
struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
- struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
+ struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
wait_event(dev_priv->pending_flip_queue,
- atomic_read(&obj_priv->pending_flip) == 0);
+ atomic_read(&obj->pending_flip) == 0);
/* Big Hammer, we also need to ensure that any pending
* MI_WAIT_FOR_EVENT inside a user batch buffer on the
* current scanout is retired before unpinning the old
* framebuffer.
*/
- ret = i915_gem_object_flush_gpu(obj_priv, false);
+ ret = i915_gem_object_flush_gpu(obj, false);
if (ret) {
i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
mutex_unlock(&dev->struct_mutex);
@@ -1633,8 +1632,10 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
return ret;
}
- if (old_fb)
+ if (old_fb) {
+ intel_wait_for_vblank(dev, intel_crtc->pipe);
i915_gem_object_unpin(to_intel_framebuffer(old_fb)->obj);
+ }
mutex_unlock(&dev->struct_mutex);
@@ -1996,31 +1997,31 @@ static void intel_flush_display_plane(struct drm_device *dev,
static void intel_clear_scanline_wait(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
u32 tmp;
if (IS_GEN2(dev))
/* Can't break the hang on i8xx */
return;
- tmp = I915_READ(PRB0_CTL);
- if (tmp & RING_WAIT) {
- I915_WRITE(PRB0_CTL, tmp);
- POSTING_READ(PRB0_CTL);
- }
+ ring = LP_RING(dev_priv);
+ tmp = I915_READ_CTL(ring);
+ if (tmp & RING_WAIT)
+ I915_WRITE_CTL(ring, tmp);
}
static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
{
- struct drm_i915_gem_object *obj_priv;
+ struct drm_i915_gem_object *obj;
struct drm_i915_private *dev_priv;
if (crtc->fb == NULL)
return;
- obj_priv = to_intel_bo(to_intel_framebuffer(crtc->fb)->obj);
+ obj = to_intel_framebuffer(crtc->fb)->obj;
dev_priv = crtc->dev->dev_private;
wait_event(dev_priv->pending_flip_queue,
- atomic_read(&obj_priv->pending_flip) == 0);
+ atomic_read(&obj->pending_flip) == 0);
}
static void ironlake_crtc_enable(struct drm_crtc *crtc)
@@ -2850,6 +2851,39 @@ static struct intel_watermark_params ironlake_cursor_srwm_info = {
ILK_FIFO_LINE_SIZE
};
+static struct intel_watermark_params sandybridge_display_wm_info = {
+ SNB_DISPLAY_FIFO,
+ SNB_DISPLAY_MAXWM,
+ SNB_DISPLAY_DFTWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+
+static struct intel_watermark_params sandybridge_cursor_wm_info = {
+ SNB_CURSOR_FIFO,
+ SNB_CURSOR_MAXWM,
+ SNB_CURSOR_DFTWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+
+static struct intel_watermark_params sandybridge_display_srwm_info = {
+ SNB_DISPLAY_SR_FIFO,
+ SNB_DISPLAY_MAX_SRWM,
+ SNB_DISPLAY_DFT_SRWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+
+static struct intel_watermark_params sandybridge_cursor_srwm_info = {
+ SNB_CURSOR_SR_FIFO,
+ SNB_CURSOR_MAX_SRWM,
+ SNB_CURSOR_DFT_SRWM,
+ 2,
+ SNB_FIFO_LINE_SIZE
+};
+
+
/**
* intel_calculate_wm - calculate watermark level
* @clock_in_khz: pixel clock
@@ -3383,12 +3417,17 @@ static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused,
static bool ironlake_compute_wm0(struct drm_device *dev,
int pipe,
+ const struct intel_watermark_params *display,
+ int display_latency_ns,
+ const struct intel_watermark_params *cursor,
+ int cursor_latency_ns,
int *plane_wm,
int *cursor_wm)
{
struct drm_crtc *crtc;
- int htotal, hdisplay, clock, pixel_size = 0;
- int line_time_us, line_count, entries;
+ int htotal, hdisplay, clock, pixel_size;
+ int line_time_us, line_count;
+ int entries, tlb_miss;
crtc = intel_get_crtc_for_pipe(dev, pipe);
if (crtc->fb == NULL || !crtc->enabled)
@@ -3400,37 +3439,141 @@ static bool ironlake_compute_wm0(struct drm_device *dev,
pixel_size = crtc->fb->bits_per_pixel / 8;
/* Use the small buffer method to calculate plane watermark */
- entries = ((clock * pixel_size / 1000) * ILK_LP0_PLANE_LATENCY) / 1000;
- entries = DIV_ROUND_UP(entries,
- ironlake_display_wm_info.cacheline_size);
- *plane_wm = entries + ironlake_display_wm_info.guard_size;
- if (*plane_wm > (int)ironlake_display_wm_info.max_wm)
- *plane_wm = ironlake_display_wm_info.max_wm;
+ entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
+ tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, display->cacheline_size);
+ *plane_wm = entries + display->guard_size;
+ if (*plane_wm > (int)display->max_wm)
+ *plane_wm = display->max_wm;
/* Use the large buffer method to calculate cursor watermark */
line_time_us = ((htotal * 1000) / clock);
- line_count = (ILK_LP0_CURSOR_LATENCY / line_time_us + 1000) / 1000;
+ line_count = (cursor_latency_ns / line_time_us + 1000) / 1000;
entries = line_count * 64 * pixel_size;
- entries = DIV_ROUND_UP(entries,
- ironlake_cursor_wm_info.cacheline_size);
- *cursor_wm = entries + ironlake_cursor_wm_info.guard_size;
- if (*cursor_wm > ironlake_cursor_wm_info.max_wm)
- *cursor_wm = ironlake_cursor_wm_info.max_wm;
+ tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8;
+ if (tlb_miss > 0)
+ entries += tlb_miss;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+ if (*cursor_wm > (int)cursor->max_wm)
+ *cursor_wm = (int)cursor->max_wm;
+
+ return true;
+}
+
+/*
+ * Check the wm result.
+ *
+ * If any calculated watermark values is larger than the maximum value that
+ * can be programmed into the associated watermark register, that watermark
+ * must be disabled.
+ */
+static bool ironlake_check_srwm(struct drm_device *dev, int level,
+ int fbc_wm, int display_wm, int cursor_wm,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d,"
+ " cursor %d\n", level, display_wm, fbc_wm, cursor_wm);
+
+ if (fbc_wm > SNB_FBC_MAX_SRWM) {
+ DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n",
+ fbc_wm, SNB_FBC_MAX_SRWM, level);
+
+ /* fbc has it's own way to disable FBC WM */
+ I915_WRITE(DISP_ARB_CTL,
+ I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS);
+ return false;
+ }
+
+ if (display_wm > display->max_wm) {
+ DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n",
+ display_wm, SNB_DISPLAY_MAX_SRWM, level);
+ return false;
+ }
+
+ if (cursor_wm > cursor->max_wm) {
+ DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n",
+ cursor_wm, SNB_CURSOR_MAX_SRWM, level);
+ return false;
+ }
+
+ if (!(fbc_wm || display_wm || cursor_wm)) {
+ DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level);
+ return false;
+ }
return true;
}
+/*
+ * Compute watermark values of WM[1-3],
+ */
+static bool ironlake_compute_srwm(struct drm_device *dev, int level,
+ int hdisplay, int htotal,
+ int pixel_size, int clock, int latency_ns,
+ const struct intel_watermark_params *display,
+ const struct intel_watermark_params *cursor,
+ int *fbc_wm, int *display_wm, int *cursor_wm)
+{
+
+ unsigned long line_time_us;
+ int line_count, line_size;
+ int small, large;
+ int entries;
+
+ if (!latency_ns) {
+ *fbc_wm = *display_wm = *cursor_wm = 0;
+ return false;
+ }
+
+ line_time_us = (htotal * 1000) / clock;
+ line_count = (latency_ns / line_time_us + 1000) / 1000;
+ line_size = hdisplay * 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);
+ *display_wm = entries + display->guard_size;
+
+ /*
+ * Spec says:
+ * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2
+ */
+ *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2;
+
+ /* calculate the self-refresh watermark for display cursor */
+ entries = line_count * pixel_size * 64;
+ entries = DIV_ROUND_UP(entries, cursor->cacheline_size);
+ *cursor_wm = entries + cursor->guard_size;
+
+ return ironlake_check_srwm(dev, level,
+ *fbc_wm, *display_wm, *cursor_wm,
+ display, cursor);
+}
+
static void ironlake_update_wm(struct drm_device *dev,
int planea_clock, int planeb_clock,
- int sr_hdisplay, int sr_htotal,
+ int hdisplay, int htotal,
int pixel_size)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- int plane_wm, cursor_wm, enabled;
- int tmp;
+ int fbc_wm, plane_wm, cursor_wm, enabled;
+ int clock;
enabled = 0;
- if (ironlake_compute_wm0(dev, 0, &plane_wm, &cursor_wm)) {
+ if (ironlake_compute_wm0(dev, 0,
+ &ironlake_display_wm_info,
+ ILK_LP0_PLANE_LATENCY,
+ &ironlake_cursor_wm_info,
+ ILK_LP0_CURSOR_LATENCY,
+ &plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEA_ILK,
(plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
@@ -3439,7 +3582,12 @@ static void ironlake_update_wm(struct drm_device *dev,
enabled++;
}
- if (ironlake_compute_wm0(dev, 1, &plane_wm, &cursor_wm)) {
+ if (ironlake_compute_wm0(dev, 1,
+ &ironlake_display_wm_info,
+ ILK_LP0_PLANE_LATENCY,
+ &ironlake_cursor_wm_info,
+ ILK_LP0_CURSOR_LATENCY,
+ &plane_wm, &cursor_wm)) {
I915_WRITE(WM0_PIPEB_ILK,
(plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
@@ -3452,57 +3600,151 @@ static void ironlake_update_wm(struct drm_device *dev,
* Calculate and update the self-refresh watermark only when one
* display plane is used.
*/
- tmp = 0;
- if (enabled == 1 && /* XXX disabled due to buggy implmentation? */ 0) {
- unsigned long line_time_us;
- int small, large, plane_fbc;
- int sr_clock, entries;
- int line_count, line_size;
- /* Read the self-refresh latency. The unit is 0.5us */
- int ilk_sr_latency = I915_READ(MLTR_ILK) & ILK_SRLT_MASK;
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
- sr_clock = planea_clock ? planea_clock : planeb_clock;
- line_time_us = (sr_htotal * 1000) / sr_clock;
+ if (enabled != 1)
+ return;
- /* Use ns/us then divide to preserve precision */
- line_count = ((ilk_sr_latency * 500) / line_time_us + 1000)
- / 1000;
- line_size = sr_hdisplay * pixel_size;
+ clock = planea_clock ? planea_clock : planeb_clock;
- /* Use the minimum of the small and large buffer method for primary */
- small = ((sr_clock * pixel_size / 1000) * (ilk_sr_latency * 500)) / 1000;
- large = line_count * line_size;
+ /* WM1 */
+ if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size,
+ clock, ILK_READ_WM1_LATENCY() * 500,
+ &ironlake_display_srwm_info,
+ &ironlake_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
- entries = DIV_ROUND_UP(min(small, large),
- ironlake_display_srwm_info.cacheline_size);
+ I915_WRITE(WM1_LP_ILK,
+ WM1_LP_SR_EN |
+ (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM2 */
+ if (!ironlake_compute_srwm(dev, 2, hdisplay, htotal, pixel_size,
+ clock, ILK_READ_WM2_LATENCY() * 500,
+ &ironlake_display_srwm_info,
+ &ironlake_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
- plane_fbc = entries * 64;
- plane_fbc = DIV_ROUND_UP(plane_fbc, line_size);
+ I915_WRITE(WM2_LP_ILK,
+ WM2_LP_EN |
+ (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
- plane_wm = entries + ironlake_display_srwm_info.guard_size;
- if (plane_wm > (int)ironlake_display_srwm_info.max_wm)
- plane_wm = ironlake_display_srwm_info.max_wm;
+ /*
+ * WM3 is unsupported on ILK, probably because we don't have latency
+ * data for that power state
+ */
+}
- /* calculate the self-refresh watermark for display cursor */
- entries = line_count * pixel_size * 64;
- entries = DIV_ROUND_UP(entries,
- ironlake_cursor_srwm_info.cacheline_size);
+static void sandybridge_update_wm(struct drm_device *dev,
+ int planea_clock, int planeb_clock,
+ int hdisplay, int htotal,
+ int pixel_size)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */
+ int fbc_wm, plane_wm, cursor_wm, enabled;
+ int clock;
- cursor_wm = entries + ironlake_cursor_srwm_info.guard_size;
- if (cursor_wm > (int)ironlake_cursor_srwm_info.max_wm)
- cursor_wm = ironlake_cursor_srwm_info.max_wm;
+ enabled = 0;
+ if (ironlake_compute_wm0(dev, 0,
+ &sandybridge_display_wm_info, latency,
+ &sandybridge_cursor_wm_info, latency,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEA_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
+ " plane %d, " "cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled++;
+ }
- /* configure watermark and enable self-refresh */
- tmp = (WM1_LP_SR_EN |
- (ilk_sr_latency << WM1_LP_LATENCY_SHIFT) |
- (plane_fbc << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
- DRM_DEBUG_KMS("self-refresh watermark: display plane %d, fbc lines %d,"
- " cursor %d\n", plane_wm, plane_fbc, cursor_wm);
+ if (ironlake_compute_wm0(dev, 1,
+ &sandybridge_display_wm_info, latency,
+ &sandybridge_cursor_wm_info, latency,
+ &plane_wm, &cursor_wm)) {
+ I915_WRITE(WM0_PIPEB_ILK,
+ (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm);
+ DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
+ " plane %d, cursor: %d\n",
+ plane_wm, cursor_wm);
+ enabled++;
}
- I915_WRITE(WM1_LP_ILK, tmp);
- /* XXX setup WM2 and WM3 */
+
+ /*
+ * Calculate and update the self-refresh watermark only when one
+ * display plane is used.
+ *
+ * SNB support 3 levels of watermark.
+ *
+ * WM1/WM2/WM2 watermarks have to be enabled in the ascending order,
+ * and disabled in the descending order
+ *
+ */
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ if (enabled != 1)
+ return;
+
+ clock = planea_clock ? planea_clock : planeb_clock;
+
+ /* WM1 */
+ if (!ironlake_compute_srwm(dev, 1, hdisplay, htotal, pixel_size,
+ clock, SNB_READ_WM1_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM1_LP_ILK,
+ WM1_LP_SR_EN |
+ (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM2 */
+ if (!ironlake_compute_srwm(dev, 2,
+ hdisplay, htotal, pixel_size,
+ clock, SNB_READ_WM2_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM2_LP_ILK,
+ WM2_LP_EN |
+ (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
+
+ /* WM3 */
+ if (!ironlake_compute_srwm(dev, 3,
+ hdisplay, htotal, pixel_size,
+ clock, SNB_READ_WM3_LATENCY() * 500,
+ &sandybridge_display_srwm_info,
+ &sandybridge_cursor_srwm_info,
+ &fbc_wm, &plane_wm, &cursor_wm))
+ return;
+
+ I915_WRITE(WM3_LP_ILK,
+ WM3_LP_EN |
+ (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) |
+ (fbc_wm << WM1_LP_FBC_SHIFT) |
+ (plane_wm << WM1_LP_SR_SHIFT) |
+ cursor_wm);
}
/**
@@ -3580,6 +3822,11 @@ static void intel_update_watermarks(struct drm_device *dev)
sr_hdisplay, sr_htotal, pixel_size);
}
+static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
+{
+ return dev_priv->lvds_use_ssc && i915_panel_use_ssc;
+}
+
static int intel_crtc_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode,
@@ -3642,7 +3889,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
num_connectors++;
}
- if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) {
+ if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
refclk = dev_priv->lvds_ssc_freq * 1000;
DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
refclk / 1000);
@@ -3660,7 +3907,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
* refclk, or FALSE. The returned values represent the clock equation:
* reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
*/
- limit = intel_limit(crtc);
+ limit = intel_limit(crtc, refclk);
ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock);
if (!ok) {
DRM_ERROR("Couldn't find PLL settings for mode!\n");
@@ -3714,7 +3961,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
int lane = 0, link_bw, bpp;
/* CPU eDP doesn't require FDI link, so just set DP M/N
according to current link config */
- if (has_edp_encoder && !intel_encoder_is_pch_edp(&encoder->base)) {
+ if (has_edp_encoder && !intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
target_clock = mode->clock;
intel_edp_link_config(has_edp_encoder,
&lane, &link_bw);
@@ -3817,7 +4064,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
udelay(200);
if (has_edp_encoder) {
- if (dev_priv->lvds_use_ssc) {
+ if (intel_panel_use_ssc(dev_priv)) {
temp |= DREF_SSC1_ENABLE;
I915_WRITE(PCH_DREF_CONTROL, temp);
@@ -3828,13 +4075,13 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
/* Enable CPU source on CPU attached eDP */
if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- if (dev_priv->lvds_use_ssc)
+ if (intel_panel_use_ssc(dev_priv))
temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
else
temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
} else {
/* Enable SSC on PCH eDP if needed */
- if (dev_priv->lvds_use_ssc) {
+ if (intel_panel_use_ssc(dev_priv)) {
DRM_ERROR("enabling SSC on PCH\n");
temp |= DREF_SUPERSPREAD_SOURCE_ENABLE;
}
@@ -3857,6 +4104,22 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
reduced_clock.m2;
}
+ /* Enable autotuning of the PLL clock (if permissible) */
+ if (HAS_PCH_SPLIT(dev)) {
+ int factor = 21;
+
+ if (is_lvds) {
+ if ((intel_panel_use_ssc(dev_priv) &&
+ dev_priv->lvds_ssc_freq == 100) ||
+ (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP)
+ factor = 25;
+ } else if (is_sdvo && is_tv)
+ factor = 20;
+
+ if (clock.m1 < factor * clock.n)
+ fp |= FP_CB_TUNE;
+ }
+
dpll = 0;
if (!HAS_PCH_SPLIT(dev))
dpll = DPLL_VGA_MODE_DIS;
@@ -3925,7 +4188,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
/* XXX: just matching BIOS for now */
/* dpll |= PLL_REF_INPUT_TVCLKINBC; */
dpll |= 3;
- else if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2)
+ else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
else
dpll |= PLL_REF_INPUT_DREFCLK;
@@ -4071,7 +4334,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
}
if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) {
- I915_WRITE(fp_reg, fp);
I915_WRITE(dpll_reg, dpll);
/* Wait for the clocks to stabilize. */
@@ -4089,13 +4351,13 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
}
I915_WRITE(DPLL_MD(pipe), temp);
} else {
- /* write it again -- the BIOS does, after all */
+ /* The pixel multiplier can only be updated once the
+ * DPLL is enabled and the clocks are stable.
+ *
+ * So write it again.
+ */
I915_WRITE(dpll_reg, dpll);
}
-
- /* Wait for the clocks to stabilize. */
- POSTING_READ(dpll_reg);
- udelay(150);
}
intel_crtc->lowfreq_avail = false;
@@ -4331,15 +4593,14 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
}
static int intel_crtc_cursor_set(struct drm_crtc *crtc,
- struct drm_file *file_priv,
+ struct drm_file *file,
uint32_t handle,
uint32_t width, uint32_t height)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct drm_gem_object *bo;
- struct drm_i915_gem_object *obj_priv;
+ struct drm_i915_gem_object *obj;
uint32_t addr;
int ret;
@@ -4349,7 +4610,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
if (!handle) {
DRM_DEBUG_KMS("cursor off\n");
addr = 0;
- bo = NULL;
+ obj = NULL;
mutex_lock(&dev->struct_mutex);
goto finish;
}
@@ -4360,13 +4621,11 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
return -EINVAL;
}
- bo = drm_gem_object_lookup(dev, file_priv, handle);
- if (!bo)
+ obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
+ if (!obj)
return -ENOENT;
- obj_priv = to_intel_bo(bo);
-
- if (bo->size < width * height * 4) {
+ if (obj->base.size < width * height * 4) {
DRM_ERROR("buffer is to small\n");
ret = -ENOMEM;
goto fail;
@@ -4375,29 +4634,41 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
/* we only need to pin inside GTT if cursor is non-phy */
mutex_lock(&dev->struct_mutex);
if (!dev_priv->info->cursor_needs_physical) {
- ret = i915_gem_object_pin(bo, PAGE_SIZE);
+ if (obj->tiling_mode) {
+ DRM_ERROR("cursor cannot be tiled\n");
+ ret = -EINVAL;
+ goto fail_locked;
+ }
+
+ ret = i915_gem_object_pin(obj, PAGE_SIZE, true);
if (ret) {
DRM_ERROR("failed to pin cursor bo\n");
goto fail_locked;
}
- ret = i915_gem_object_set_to_gtt_domain(bo, 0);
+ ret = i915_gem_object_set_to_gtt_domain(obj, 0);
if (ret) {
DRM_ERROR("failed to move cursor bo into the GTT\n");
goto fail_unpin;
}
- addr = obj_priv->gtt_offset;
+ ret = i915_gem_object_put_fence(obj);
+ if (ret) {
+ DRM_ERROR("failed to move cursor bo into the GTT\n");
+ goto fail_unpin;
+ }
+
+ addr = obj->gtt_offset;
} else {
int align = IS_I830(dev) ? 16 * 1024 : 256;
- ret = i915_gem_attach_phys_object(dev, bo,
+ ret = i915_gem_attach_phys_object(dev, obj,
(intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
align);
if (ret) {
DRM_ERROR("failed to attach phys object\n");
goto fail_locked;
}
- addr = obj_priv->phys_obj->handle->busaddr;
+ addr = obj->phys_obj->handle->busaddr;
}
if (IS_GEN2(dev))
@@ -4406,17 +4677,17 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
finish:
if (intel_crtc->cursor_bo) {
if (dev_priv->info->cursor_needs_physical) {
- if (intel_crtc->cursor_bo != bo)
+ if (intel_crtc->cursor_bo != obj)
i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
} else
i915_gem_object_unpin(intel_crtc->cursor_bo);
- drm_gem_object_unreference(intel_crtc->cursor_bo);
+ drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
}
mutex_unlock(&dev->struct_mutex);
intel_crtc->cursor_addr = addr;
- intel_crtc->cursor_bo = bo;
+ intel_crtc->cursor_bo = obj;
intel_crtc->cursor_width = width;
intel_crtc->cursor_height = height;
@@ -4424,11 +4695,11 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
return 0;
fail_unpin:
- i915_gem_object_unpin(bo);
+ i915_gem_object_unpin(obj);
fail_locked:
mutex_unlock(&dev->struct_mutex);
fail:
- drm_gem_object_unreference_unlocked(bo);
+ drm_gem_object_unreference_unlocked(&obj->base);
return ret;
}
@@ -4739,8 +5010,14 @@ static void intel_gpu_idle_timer(unsigned long arg)
struct drm_device *dev = (struct drm_device *)arg;
drm_i915_private_t *dev_priv = dev->dev_private;
- dev_priv->busy = false;
+ if (!list_empty(&dev_priv->mm.active_list)) {
+ /* Still processing requests, so just re-arm the timer. */
+ mod_timer(&dev_priv->idle_timer, jiffies +
+ msecs_to_jiffies(GPU_IDLE_TIMEOUT));
+ return;
+ }
+ dev_priv->busy = false;
queue_work(dev_priv->wq, &dev_priv->idle_work);
}
@@ -4751,9 +5028,17 @@ static void intel_crtc_idle_timer(unsigned long arg)
struct intel_crtc *intel_crtc = (struct intel_crtc *)arg;
struct drm_crtc *crtc = &intel_crtc->base;
drm_i915_private_t *dev_priv = crtc->dev->dev_private;
+ struct intel_framebuffer *intel_fb;
- intel_crtc->busy = false;
+ intel_fb = to_intel_framebuffer(crtc->fb);
+ if (intel_fb && intel_fb->obj->active) {
+ /* The framebuffer is still being accessed by the GPU. */
+ mod_timer(&intel_crtc->idle_timer, jiffies +
+ msecs_to_jiffies(CRTC_IDLE_TIMEOUT));
+ return;
+ }
+ intel_crtc->busy = false;
queue_work(dev_priv->wq, &dev_priv->idle_work);
}
@@ -4763,8 +5048,8 @@ static void intel_increase_pllclock(struct drm_crtc *crtc)
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
- int dpll = I915_READ(dpll_reg);
+ int dpll_reg = DPLL(pipe);
+ int dpll;
if (HAS_PCH_SPLIT(dev))
return;
@@ -4772,17 +5057,19 @@ static void intel_increase_pllclock(struct drm_crtc *crtc)
if (!dev_priv->lvds_downclock_avail)
return;
+ dpll = I915_READ(dpll_reg);
if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
DRM_DEBUG_DRIVER("upclocking LVDS\n");
/* Unlock panel regs */
- I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) |
- PANEL_UNLOCK_REGS);
+ I915_WRITE(PP_CONTROL,
+ I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS);
dpll &= ~DISPLAY_RATE_SELECT_FPA1;
I915_WRITE(dpll_reg, dpll);
- dpll = I915_READ(dpll_reg);
+ POSTING_READ(dpll_reg);
intel_wait_for_vblank(dev, pipe);
+
dpll = I915_READ(dpll_reg);
if (dpll & DISPLAY_RATE_SELECT_FPA1)
DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
@@ -4888,7 +5175,7 @@ static void intel_idle_update(struct work_struct *work)
* buffer), we'll also mark the display as busy, so we know to increase its
* clock frequency.
*/
-void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj)
+void intel_mark_busy(struct drm_device *dev, struct drm_i915_gem_object *obj)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_crtc *crtc = NULL;
@@ -4969,8 +5256,9 @@ static void intel_unpin_work_fn(struct work_struct *__work)
mutex_lock(&work->dev->struct_mutex);
i915_gem_object_unpin(work->old_fb_obj);
- drm_gem_object_unreference(work->pending_flip_obj);
- drm_gem_object_unreference(work->old_fb_obj);
+ drm_gem_object_unreference(&work->pending_flip_obj->base);
+ drm_gem_object_unreference(&work->old_fb_obj->base);
+
mutex_unlock(&work->dev->struct_mutex);
kfree(work);
}
@@ -4981,15 +5269,17 @@ static void do_intel_finish_page_flip(struct drm_device *dev,
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_unpin_work *work;
- struct drm_i915_gem_object *obj_priv;
+ struct drm_i915_gem_object *obj;
struct drm_pending_vblank_event *e;
- struct timeval now;
+ struct timeval tnow, tvbl;
unsigned long flags;
/* Ignore early vblank irqs */
if (intel_crtc == NULL)
return;
+ do_gettimeofday(&tnow);
+
spin_lock_irqsave(&dev->event_lock, flags);
work = intel_crtc->unpin_work;
if (work == NULL || !work->pending) {
@@ -4998,26 +5288,49 @@ static void do_intel_finish_page_flip(struct drm_device *dev,
}
intel_crtc->unpin_work = NULL;
- drm_vblank_put(dev, intel_crtc->pipe);
if (work->event) {
e = work->event;
- do_gettimeofday(&now);
- e->event.sequence = drm_vblank_count(dev, intel_crtc->pipe);
- e->event.tv_sec = now.tv_sec;
- e->event.tv_usec = now.tv_usec;
+ e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl);
+
+ /* Called before vblank count and timestamps have
+ * been updated for the vblank interval of flip
+ * completion? Need to increment vblank count and
+ * add one videorefresh duration to returned timestamp
+ * to account for this. We assume this happened if we
+ * get called over 0.9 frame durations after the last
+ * timestamped vblank.
+ *
+ * This calculation can not be used with vrefresh rates
+ * below 5Hz (10Hz to be on the safe side) without
+ * promoting to 64 integers.
+ */
+ if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) >
+ 9 * crtc->framedur_ns) {
+ e->event.sequence++;
+ tvbl = ns_to_timeval(timeval_to_ns(&tvbl) +
+ crtc->framedur_ns);
+ }
+
+ e->event.tv_sec = tvbl.tv_sec;
+ e->event.tv_usec = tvbl.tv_usec;
+
list_add_tail(&e->base.link,
&e->base.file_priv->event_list);
wake_up_interruptible(&e->base.file_priv->event_wait);
}
+ drm_vblank_put(dev, intel_crtc->pipe);
+
spin_unlock_irqrestore(&dev->event_lock, flags);
- obj_priv = to_intel_bo(work->old_fb_obj);
+ obj = work->old_fb_obj;
+
atomic_clear_mask(1 << intel_crtc->plane,
- &obj_priv->pending_flip.counter);
- if (atomic_read(&obj_priv->pending_flip) == 0)
+ &obj->pending_flip.counter);
+ if (atomic_read(&obj->pending_flip) == 0)
wake_up(&dev_priv->pending_flip_queue);
+
schedule_work(&work->work);
trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
@@ -5063,8 +5376,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj_priv;
- struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_unpin_work *work;
unsigned long flags, offset;
@@ -5098,13 +5410,13 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
obj = intel_fb->obj;
mutex_lock(&dev->struct_mutex);
- ret = intel_pin_and_fence_fb_obj(dev, obj, true);
+ ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
if (ret)
goto cleanup_work;
/* Reference the objects for the scheduled work. */
- drm_gem_object_reference(work->old_fb_obj);
- drm_gem_object_reference(obj);
+ drm_gem_object_reference(&work->old_fb_obj->base);
+ drm_gem_object_reference(&obj->base);
crtc->fb = fb;
@@ -5112,22 +5424,16 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
if (ret)
goto cleanup_objs;
- /* Block clients from rendering to the new back buffer until
- * the flip occurs and the object is no longer visible.
- */
- atomic_add(1 << intel_crtc->plane,
- &to_intel_bo(work->old_fb_obj)->pending_flip);
-
- work->pending_flip_obj = obj;
- obj_priv = to_intel_bo(obj);
-
if (IS_GEN3(dev) || IS_GEN2(dev)) {
u32 flip_mask;
/* Can't queue multiple flips, so wait for the previous
* one to finish before executing the next.
*/
- BEGIN_LP_RING(2);
+ ret = BEGIN_LP_RING(2);
+ if (ret)
+ goto cleanup_objs;
+
if (intel_crtc->plane)
flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
else
@@ -5137,18 +5443,28 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
ADVANCE_LP_RING();
}
+ work->pending_flip_obj = obj;
+
work->enable_stall_check = true;
/* Offset into the new buffer for cases of shared fbs between CRTCs */
offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8;
- BEGIN_LP_RING(4);
- switch(INTEL_INFO(dev)->gen) {
+ ret = BEGIN_LP_RING(4);
+ if (ret)
+ goto cleanup_objs;
+
+ /* Block clients from rendering to the new back buffer until
+ * the flip occurs and the object is no longer visible.
+ */
+ atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
+
+ switch (INTEL_INFO(dev)->gen) {
case 2:
OUT_RING(MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
OUT_RING(fb->pitch);
- OUT_RING(obj_priv->gtt_offset + offset);
+ OUT_RING(obj->gtt_offset + offset);
OUT_RING(MI_NOOP);
break;
@@ -5156,7 +5472,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
OUT_RING(MI_DISPLAY_FLIP_I915 |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
OUT_RING(fb->pitch);
- OUT_RING(obj_priv->gtt_offset + offset);
+ OUT_RING(obj->gtt_offset + offset);
OUT_RING(MI_NOOP);
break;
@@ -5169,7 +5485,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
OUT_RING(MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
OUT_RING(fb->pitch);
- OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
+ OUT_RING(obj->gtt_offset | obj->tiling_mode);
/* XXX Enabling the panel-fitter across page-flip is so far
* untested on non-native modes, so ignore it for now.
@@ -5183,8 +5499,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
case 6:
OUT_RING(MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
- OUT_RING(fb->pitch | obj_priv->tiling_mode);
- OUT_RING(obj_priv->gtt_offset);
+ OUT_RING(fb->pitch | obj->tiling_mode);
+ OUT_RING(obj->gtt_offset);
pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff;
@@ -5200,8 +5516,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
return 0;
cleanup_objs:
- drm_gem_object_unreference(work->old_fb_obj);
- drm_gem_object_unreference(obj);
+ drm_gem_object_unreference(&work->old_fb_obj->base);
+ drm_gem_object_unreference(&obj->base);
cleanup_work:
mutex_unlock(&dev->struct_mutex);
@@ -5338,7 +5654,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
}
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+ struct drm_file *file)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
@@ -5498,6 +5814,8 @@ static void intel_setup_outputs(struct drm_device *dev)
encoder->base.possible_clones =
intel_encoder_clones(dev, encoder->clone_mask);
}
+
+ intel_panel_setup_backlight(dev);
}
static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
@@ -5505,19 +5823,19 @@ static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
drm_framebuffer_cleanup(fb);
- drm_gem_object_unreference_unlocked(intel_fb->obj);
+ drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
kfree(intel_fb);
}
static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
+ struct drm_file *file,
unsigned int *handle)
{
struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
- struct drm_gem_object *object = intel_fb->obj;
+ struct drm_i915_gem_object *obj = intel_fb->obj;
- return drm_gem_handle_create(file_priv, object, handle);
+ return drm_gem_handle_create(file, &obj->base, handle);
}
static const struct drm_framebuffer_funcs intel_fb_funcs = {
@@ -5528,12 +5846,11 @@ static const struct drm_framebuffer_funcs intel_fb_funcs = {
int intel_framebuffer_init(struct drm_device *dev,
struct intel_framebuffer *intel_fb,
struct drm_mode_fb_cmd *mode_cmd,
- struct drm_gem_object *obj)
+ struct drm_i915_gem_object *obj)
{
- struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
int ret;
- if (obj_priv->tiling_mode == I915_TILING_Y)
+ if (obj->tiling_mode == I915_TILING_Y)
return -EINVAL;
if (mode_cmd->pitch & 63)
@@ -5565,11 +5882,11 @@ intel_user_framebuffer_create(struct drm_device *dev,
struct drm_file *filp,
struct drm_mode_fb_cmd *mode_cmd)
{
- struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj;
struct intel_framebuffer *intel_fb;
int ret;
- obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle);
+ obj = to_intel_bo(drm_gem_object_lookup(dev, filp, mode_cmd->handle));
if (!obj)
return ERR_PTR(-ENOENT);
@@ -5577,10 +5894,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
if (!intel_fb)
return ERR_PTR(-ENOMEM);
- ret = intel_framebuffer_init(dev, intel_fb,
- mode_cmd, obj);
+ ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
if (ret) {
- drm_gem_object_unreference_unlocked(obj);
+ drm_gem_object_unreference_unlocked(&obj->base);
kfree(intel_fb);
return ERR_PTR(ret);
}
@@ -5593,10 +5909,10 @@ static const struct drm_mode_config_funcs intel_mode_funcs = {
.output_poll_changed = intel_fb_output_poll_changed,
};
-static struct drm_gem_object *
+static struct drm_i915_gem_object *
intel_alloc_context_page(struct drm_device *dev)
{
- struct drm_gem_object *ctx;
+ struct drm_i915_gem_object *ctx;
int ret;
ctx = i915_gem_alloc_object(dev, 4096);
@@ -5606,7 +5922,7 @@ intel_alloc_context_page(struct drm_device *dev)
}
mutex_lock(&dev->struct_mutex);
- ret = i915_gem_object_pin(ctx, 4096);
+ ret = i915_gem_object_pin(ctx, 4096, true);
if (ret) {
DRM_ERROR("failed to pin power context: %d\n", ret);
goto err_unref;
@@ -5624,7 +5940,7 @@ intel_alloc_context_page(struct drm_device *dev)
err_unpin:
i915_gem_object_unpin(ctx);
err_unref:
- drm_gem_object_unreference(ctx);
+ drm_gem_object_unreference(&ctx->base);
mutex_unlock(&dev->struct_mutex);
return NULL;
}
@@ -5736,6 +6052,25 @@ void ironlake_disable_drps(struct drm_device *dev)
}
+void gen6_set_rps(struct drm_device *dev, u8 val)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 swreq;
+
+ swreq = (val & 0x3ff) << 25;
+ I915_WRITE(GEN6_RPNSWREQ, swreq);
+}
+
+void gen6_disable_rps(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(GEN6_RPNSWREQ, 1 << 31);
+ I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
+ I915_WRITE(GEN6_PMIER, 0);
+ I915_WRITE(GEN6_PMIIR, I915_READ(GEN6_PMIIR));
+}
+
static unsigned long intel_pxfreq(u32 vidfreq)
{
unsigned long freq;
@@ -5822,7 +6157,123 @@ void intel_init_emon(struct drm_device *dev)
dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK);
}
-void intel_init_clock_gating(struct drm_device *dev)
+void gen6_enable_rps(struct drm_i915_private *dev_priv)
+{
+ u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
+ u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
+ u32 pcu_mbox;
+ int cur_freq, min_freq, max_freq;
+ int i;
+
+ /* Here begins a magic sequence of register writes to enable
+ * auto-downclocking.
+ *
+ * Perhaps there might be some value in exposing these to
+ * userspace...
+ */
+ I915_WRITE(GEN6_RC_STATE, 0);
+ __gen6_force_wake_get(dev_priv);
+
+ /* disable the counters and set deterministic thresholds */
+ I915_WRITE(GEN6_RC_CONTROL, 0);
+
+ I915_WRITE(GEN6_RC1_WAKE_RATE_LIMIT, 1000 << 16);
+ I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16 | 30);
+ I915_WRITE(GEN6_RC6pp_WAKE_RATE_LIMIT, 30);
+ I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000);
+ I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25);
+
+ for (i = 0; i < I915_NUM_RINGS; i++)
+ I915_WRITE(RING_MAX_IDLE(dev_priv->ring[i].mmio_base), 10);
+
+ I915_WRITE(GEN6_RC_SLEEP, 0);
+ I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
+ I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
+ I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
+ I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
+
+ I915_WRITE(GEN6_RC_CONTROL,
+ GEN6_RC_CTL_RC6p_ENABLE |
+ GEN6_RC_CTL_RC6_ENABLE |
+ GEN6_RC_CTL_EI_MODE(1) |
+ GEN6_RC_CTL_HW_ENABLE);
+
+ I915_WRITE(GEN6_RPNSWREQ,
+ GEN6_FREQUENCY(10) |
+ GEN6_OFFSET(0) |
+ GEN6_AGGRESSIVE_TURBO);
+ I915_WRITE(GEN6_RC_VIDEO_FREQ,
+ GEN6_FREQUENCY(12));
+
+ I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 1000000);
+ I915_WRITE(GEN6_RP_INTERRUPT_LIMITS,
+ 18 << 24 |
+ 6 << 16);
+ I915_WRITE(GEN6_RP_UP_THRESHOLD, 90000);
+ I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 100000);
+ I915_WRITE(GEN6_RP_UP_EI, 100000);
+ I915_WRITE(GEN6_RP_DOWN_EI, 300000);
+ I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
+ I915_WRITE(GEN6_RP_CONTROL,
+ GEN6_RP_MEDIA_TURBO |
+ GEN6_RP_USE_NORMAL_FREQ |
+ GEN6_RP_MEDIA_IS_GFX |
+ GEN6_RP_ENABLE |
+ GEN6_RP_UP_BUSY_MAX |
+ GEN6_RP_DOWN_BUSY_MIN);
+
+ if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0,
+ 500))
+ DRM_ERROR("timeout waiting for pcode mailbox to become idle\n");
+
+ I915_WRITE(GEN6_PCODE_DATA, 0);
+ I915_WRITE(GEN6_PCODE_MAILBOX,
+ GEN6_PCODE_READY |
+ GEN6_PCODE_WRITE_MIN_FREQ_TABLE);
+ if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0,
+ 500))
+ DRM_ERROR("timeout waiting for pcode mailbox to finish\n");
+
+ min_freq = (rp_state_cap & 0xff0000) >> 16;
+ max_freq = rp_state_cap & 0xff;
+ cur_freq = (gt_perf_status & 0xff00) >> 8;
+
+ /* Check for overclock support */
+ if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0,
+ 500))
+ DRM_ERROR("timeout waiting for pcode mailbox to become idle\n");
+ I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_READ_OC_PARAMS);
+ pcu_mbox = I915_READ(GEN6_PCODE_DATA);
+ if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0,
+ 500))
+ DRM_ERROR("timeout waiting for pcode mailbox to finish\n");
+ if (pcu_mbox & (1<<31)) { /* OC supported */
+ max_freq = pcu_mbox & 0xff;
+ DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 100);
+ }
+
+ /* In units of 100MHz */
+ dev_priv->max_delay = max_freq;
+ dev_priv->min_delay = min_freq;
+ dev_priv->cur_delay = cur_freq;
+
+ /* requires MSI enabled */
+ I915_WRITE(GEN6_PMIER,
+ GEN6_PM_MBOX_EVENT |
+ GEN6_PM_THERMAL_EVENT |
+ GEN6_PM_RP_DOWN_TIMEOUT |
+ GEN6_PM_RP_UP_THRESHOLD |
+ GEN6_PM_RP_DOWN_THRESHOLD |
+ GEN6_PM_RP_UP_EI_EXPIRED |
+ GEN6_PM_RP_DOWN_EI_EXPIRED);
+ I915_WRITE(GEN6_PMIMR, 0);
+ /* enable all PM interrupts */
+ I915_WRITE(GEN6_PMINTRMSK, 0);
+
+ __gen6_force_wake_put(dev_priv);
+}
+
+void intel_enable_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -5872,9 +6323,9 @@ void intel_init_clock_gating(struct drm_device *dev)
I915_WRITE(DISP_ARB_CTL,
(I915_READ(DISP_ARB_CTL) |
DISP_FBC_WM_DIS));
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
}
/*
* Based on the document from hardware guys the following bits
@@ -5896,7 +6347,49 @@ void intel_init_clock_gating(struct drm_device *dev)
ILK_DPFC_DIS2 |
ILK_CLK_FBC);
}
- return;
+
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_ELPIN_409_SELECT);
+
+ if (IS_GEN5(dev)) {
+ I915_WRITE(_3D_CHICKEN2,
+ _3D_CHICKEN2_WM_READ_PIPELINED << 16 |
+ _3D_CHICKEN2_WM_READ_PIPELINED);
+ }
+
+ if (IS_GEN6(dev)) {
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ /*
+ * According to the spec the following bits should be
+ * set in order to enable memory self-refresh and fbc:
+ * The bit21 and bit22 of 0x42000
+ * The bit21 and bit22 of 0x42004
+ * The bit5 and bit7 of 0x42020
+ * The bit14 of 0x70180
+ * The bit14 of 0x71180
+ */
+ I915_WRITE(ILK_DISPLAY_CHICKEN1,
+ I915_READ(ILK_DISPLAY_CHICKEN1) |
+ ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS);
+ I915_WRITE(ILK_DISPLAY_CHICKEN2,
+ I915_READ(ILK_DISPLAY_CHICKEN2) |
+ ILK_DPARB_GATE | ILK_VSDPFD_FULL);
+ I915_WRITE(ILK_DSPCLK_GATE,
+ I915_READ(ILK_DSPCLK_GATE) |
+ ILK_DPARB_CLK_GATE |
+ ILK_DPFD_CLK_GATE);
+
+ I915_WRITE(DSPACNTR,
+ I915_READ(DSPACNTR) |
+ DISPPLANE_TRICKLE_FEED_DISABLE);
+ I915_WRITE(DSPBCNTR,
+ I915_READ(DSPBCNTR) |
+ DISPPLANE_TRICKLE_FEED_DISABLE);
+ }
} else if (IS_G4X(dev)) {
uint32_t dspclk_gate;
I915_WRITE(RENCLK_GATE_D1, 0);
@@ -5934,55 +6427,84 @@ void intel_init_clock_gating(struct drm_device *dev)
} else if (IS_I830(dev)) {
I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE);
}
+}
- /*
- * GPU can automatically power down the render unit if given a page
- * to save state.
- */
- if (IS_IRONLAKE_M(dev)) {
- if (dev_priv->renderctx == NULL)
- dev_priv->renderctx = intel_alloc_context_page(dev);
- if (dev_priv->renderctx) {
- struct drm_i915_gem_object *obj_priv;
- obj_priv = to_intel_bo(dev_priv->renderctx);
- if (obj_priv) {
- BEGIN_LP_RING(4);
- OUT_RING(MI_SET_CONTEXT);
- OUT_RING(obj_priv->gtt_offset |
- MI_MM_SPACE_GTT |
- MI_SAVE_EXT_STATE_EN |
- MI_RESTORE_EXT_STATE_EN |
- MI_RESTORE_INHIBIT);
- OUT_RING(MI_NOOP);
- OUT_RING(MI_FLUSH);
- ADVANCE_LP_RING();
- }
- } else
- DRM_DEBUG_KMS("Failed to allocate render context."
- "Disable RC6\n");
+void intel_disable_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->renderctx) {
+ struct drm_i915_gem_object *obj = dev_priv->renderctx;
+
+ I915_WRITE(CCID, 0);
+ POSTING_READ(CCID);
+
+ i915_gem_object_unpin(obj);
+ drm_gem_object_unreference(&obj->base);
+ dev_priv->renderctx = NULL;
}
- if (I915_HAS_RC6(dev) && drm_core_check_feature(dev, DRIVER_MODESET)) {
- struct drm_i915_gem_object *obj_priv = NULL;
+ if (dev_priv->pwrctx) {
+ struct drm_i915_gem_object *obj = dev_priv->pwrctx;
- if (dev_priv->pwrctx) {
- obj_priv = to_intel_bo(dev_priv->pwrctx);
- } else {
- struct drm_gem_object *pwrctx;
+ I915_WRITE(PWRCTXA, 0);
+ POSTING_READ(PWRCTXA);
- pwrctx = intel_alloc_context_page(dev);
- if (pwrctx) {
- dev_priv->pwrctx = pwrctx;
- obj_priv = to_intel_bo(pwrctx);
- }
- }
+ i915_gem_object_unpin(obj);
+ drm_gem_object_unreference(&obj->base);
+ dev_priv->pwrctx = NULL;
+ }
+}
- if (obj_priv) {
- I915_WRITE(PWRCTXA, obj_priv->gtt_offset | PWRCTX_EN);
- I915_WRITE(MCHBAR_RENDER_STANDBY,
- I915_READ(MCHBAR_RENDER_STANDBY) & ~RCX_SW_EXIT);
- }
+static void ironlake_disable_rc6(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */
+ I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT);
+ wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON),
+ 10);
+ POSTING_READ(CCID);
+ I915_WRITE(PWRCTXA, 0);
+ POSTING_READ(PWRCTXA);
+ I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
+ POSTING_READ(RSTDBYCTL);
+ i915_gem_object_unpin(dev_priv->renderctx);
+ drm_gem_object_unreference(&dev_priv->renderctx->base);
+ dev_priv->renderctx = NULL;
+ i915_gem_object_unpin(dev_priv->pwrctx);
+ drm_gem_object_unreference(&dev_priv->pwrctx->base);
+ dev_priv->pwrctx = NULL;
+}
+
+void ironlake_enable_rc6(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ /*
+ * GPU can automatically power down the render unit if given a page
+ * to save state.
+ */
+ ret = BEGIN_LP_RING(6);
+ if (ret) {
+ ironlake_disable_rc6(dev);
+ return;
}
+ OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN);
+ OUT_RING(MI_SET_CONTEXT);
+ OUT_RING(dev_priv->renderctx->gtt_offset |
+ MI_MM_SPACE_GTT |
+ MI_SAVE_EXT_STATE_EN |
+ MI_RESTORE_EXT_STATE_EN |
+ MI_RESTORE_INHIBIT);
+ OUT_RING(MI_SUSPEND_FLUSH);
+ OUT_RING(MI_NOOP);
+ OUT_RING(MI_FLUSH);
+ ADVANCE_LP_RING();
+
+ I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN);
+ I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
}
/* Set up chip specific display functions */
@@ -5997,7 +6519,7 @@ static void intel_init_display(struct drm_device *dev)
dev_priv->display.dpms = i9xx_crtc_dpms;
if (I915_HAS_FBC(dev)) {
- if (IS_IRONLAKE_M(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
dev_priv->display.fbc_enabled = ironlake_fbc_enabled;
dev_priv->display.enable_fbc = ironlake_enable_fbc;
dev_priv->display.disable_fbc = ironlake_disable_fbc;
@@ -6046,6 +6568,14 @@ static void intel_init_display(struct drm_device *dev)
"Disable CxSR\n");
dev_priv->display.update_wm = NULL;
}
+ } else if (IS_GEN6(dev)) {
+ if (SNB_READ_WM0_LATENCY()) {
+ dev_priv->display.update_wm = sandybridge_update_wm;
+ } else {
+ DRM_DEBUG_KMS("Failed to read display plane latency. "
+ "Disable CxSR\n");
+ dev_priv->display.update_wm = NULL;
+ }
} else
dev_priv->display.update_wm = NULL;
} else if (IS_PINEVIEW(dev)) {
@@ -6191,12 +6721,7 @@ void intel_modeset_init(struct drm_device *dev)
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
}
-
- /* set memory base */
- if (IS_GEN2(dev))
- dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0);
- else
- dev->mode_config.fb_base = pci_resource_start(dev->pdev, 2);
+ dev->mode_config.fb_base = dev->agp->base;
if (IS_MOBILE(dev) || !IS_GEN2(dev))
dev_priv->num_pipe = 2;
@@ -6211,7 +6736,7 @@ void intel_modeset_init(struct drm_device *dev)
intel_setup_outputs(dev);
- intel_init_clock_gating(dev);
+ intel_enable_clock_gating(dev);
/* Just disable it once at startup */
i915_disable_vga(dev);
@@ -6221,6 +6746,24 @@ void intel_modeset_init(struct drm_device *dev)
intel_init_emon(dev);
}
+ if (IS_GEN6(dev))
+ gen6_enable_rps(dev_priv);
+
+ if (IS_IRONLAKE_M(dev)) {
+ dev_priv->renderctx = intel_alloc_context_page(dev);
+ if (!dev_priv->renderctx)
+ goto skip_rc6;
+ dev_priv->pwrctx = intel_alloc_context_page(dev);
+ if (!dev_priv->pwrctx) {
+ i915_gem_object_unpin(dev_priv->renderctx);
+ drm_gem_object_unreference(&dev_priv->renderctx->base);
+ dev_priv->renderctx = NULL;
+ goto skip_rc6;
+ }
+ ironlake_enable_rc6(dev);
+ }
+
+skip_rc6:
INIT_WORK(&dev_priv->idle_work, intel_idle_update);
setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer,
(unsigned long)dev);
@@ -6252,28 +6795,13 @@ void intel_modeset_cleanup(struct drm_device *dev)
if (dev_priv->display.disable_fbc)
dev_priv->display.disable_fbc(dev);
- if (dev_priv->renderctx) {
- struct drm_i915_gem_object *obj_priv;
-
- obj_priv = to_intel_bo(dev_priv->renderctx);
- I915_WRITE(CCID, obj_priv->gtt_offset &~ CCID_EN);
- I915_READ(CCID);
- i915_gem_object_unpin(dev_priv->renderctx);
- drm_gem_object_unreference(dev_priv->renderctx);
- }
-
- if (dev_priv->pwrctx) {
- struct drm_i915_gem_object *obj_priv;
-
- obj_priv = to_intel_bo(dev_priv->pwrctx);
- I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN);
- I915_READ(PWRCTXA);
- i915_gem_object_unpin(dev_priv->pwrctx);
- drm_gem_object_unreference(dev_priv->pwrctx);
- }
-
if (IS_IRONLAKE_M(dev))
ironlake_disable_drps(dev);
+ if (IS_GEN6(dev))
+ gen6_disable_rps(dev);
+
+ if (IS_IRONLAKE_M(dev))
+ ironlake_disable_rc6(dev);
mutex_unlock(&dev->struct_mutex);
@@ -6325,3 +6853,113 @@ int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
return 0;
}
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/seq_file.h>
+
+struct intel_display_error_state {
+ struct intel_cursor_error_state {
+ u32 control;
+ u32 position;
+ u32 base;
+ u32 size;
+ } cursor[2];
+
+ struct intel_pipe_error_state {
+ u32 conf;
+ u32 source;
+
+ u32 htotal;
+ u32 hblank;
+ u32 hsync;
+ u32 vtotal;
+ u32 vblank;
+ u32 vsync;
+ } pipe[2];
+
+ struct intel_plane_error_state {
+ u32 control;
+ u32 stride;
+ u32 size;
+ u32 pos;
+ u32 addr;
+ u32 surface;
+ u32 tile_offset;
+ } plane[2];
+};
+
+struct intel_display_error_state *
+intel_display_capture_error_state(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct intel_display_error_state *error;
+ int i;
+
+ error = kmalloc(sizeof(*error), GFP_ATOMIC);
+ if (error == NULL)
+ return NULL;
+
+ for (i = 0; i < 2; i++) {
+ error->cursor[i].control = I915_READ(CURCNTR(i));
+ error->cursor[i].position = I915_READ(CURPOS(i));
+ error->cursor[i].base = I915_READ(CURBASE(i));
+
+ error->plane[i].control = I915_READ(DSPCNTR(i));
+ error->plane[i].stride = I915_READ(DSPSTRIDE(i));
+ error->plane[i].size = I915_READ(DSPSIZE(i));
+ error->plane[i].pos= I915_READ(DSPPOS(i));
+ error->plane[i].addr = I915_READ(DSPADDR(i));
+ if (INTEL_INFO(dev)->gen >= 4) {
+ error->plane[i].surface = I915_READ(DSPSURF(i));
+ error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
+ }
+
+ error->pipe[i].conf = I915_READ(PIPECONF(i));
+ error->pipe[i].source = I915_READ(PIPESRC(i));
+ error->pipe[i].htotal = I915_READ(HTOTAL(i));
+ error->pipe[i].hblank = I915_READ(HBLANK(i));
+ error->pipe[i].hsync = I915_READ(HSYNC(i));
+ error->pipe[i].vtotal = I915_READ(VTOTAL(i));
+ error->pipe[i].vblank = I915_READ(VBLANK(i));
+ error->pipe[i].vsync = I915_READ(VSYNC(i));
+ }
+
+ return error;
+}
+
+void
+intel_display_print_error_state(struct seq_file *m,
+ struct drm_device *dev,
+ struct intel_display_error_state *error)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ seq_printf(m, "Pipe [%d]:\n", i);
+ seq_printf(m, " CONF: %08x\n", error->pipe[i].conf);
+ seq_printf(m, " SRC: %08x\n", error->pipe[i].source);
+ seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
+ seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
+ seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
+ seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
+ seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
+ seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
+
+ seq_printf(m, "Plane [%d]:\n", i);
+ seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
+ seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
+ seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
+ seq_printf(m, " POS: %08x\n", error->plane[i].pos);
+ seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
+ if (INTEL_INFO(dev)->gen >= 4) {
+ seq_printf(m, " SURF: %08x\n", error->plane[i].surface);
+ seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
+ }
+
+ seq_printf(m, "Cursor [%d]:\n", i);
+ seq_printf(m, " CNTR: %08x\n", error->cursor[i].control);
+ seq_printf(m, " POS: %08x\n", error->cursor[i].position);
+ seq_printf(m, " BASE: %08x\n", error->cursor[i].base);
+ }
+}
+#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-27 09:15:58 +0300