#include "intel_drv.h"
#include "../../../platform/x86/intel_ips.h"
#include <linux/module.h>
+#include <linux/vgaarb.h>
#include <drm/i915_powerwell.h>
+#include <linux/pm_runtime.h>
/**
* RC6 is a special power stage which allows the GPU to enter an very
DRM_DEBUG_KMS("disabled FBC\n");
}
-static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void i8xx_enable_fbc(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int cfb_pitch;
int plane, i;
- u32 fbc_ctl, fbc_ctl2;
+ u32 fbc_ctl;
cfb_pitch = dev_priv->fbc.size / FBC_LL_SIZE;
if (fb->pitches[0] < cfb_pitch)
cfb_pitch = fb->pitches[0];
- /* FBC_CTL wants 64B units */
- cfb_pitch = (cfb_pitch / 64) - 1;
+ /* FBC_CTL wants 32B or 64B units */
+ if (IS_GEN2(dev))
+ cfb_pitch = (cfb_pitch / 32) - 1;
+ else
+ cfb_pitch = (cfb_pitch / 64) - 1;
plane = intel_crtc->plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB;
/* Clear old tags */
for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++)
I915_WRITE(FBC_TAG + (i * 4), 0);
- /* Set it up... */
- fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | FBC_CTL_CPU_FENCE;
- fbc_ctl2 |= plane;
- I915_WRITE(FBC_CONTROL2, fbc_ctl2);
- I915_WRITE(FBC_FENCE_OFF, crtc->y);
+ if (IS_GEN4(dev)) {
+ u32 fbc_ctl2;
+
+ /* Set it up... */
+ fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | FBC_CTL_CPU_FENCE;
+ fbc_ctl2 |= plane;
+ I915_WRITE(FBC_CONTROL2, fbc_ctl2);
+ I915_WRITE(FBC_FENCE_OFF, crtc->y);
+ }
/* enable it... */
- fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC;
+ fbc_ctl = I915_READ(FBC_CONTROL);
+ fbc_ctl &= 0x3fff << FBC_CTL_INTERVAL_SHIFT;
+ fbc_ctl |= FBC_CTL_EN | FBC_CTL_PERIODIC;
if (IS_I945GM(dev))
fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */
fbc_ctl |= (cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
- fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT;
fbc_ctl |= obj->fence_reg;
I915_WRITE(FBC_CONTROL, fbc_ctl);
return I915_READ(FBC_CONTROL) & FBC_CTL_EN;
}
-static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void g4x_enable_fbc(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
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;
u32 dpfc_ctl;
dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X;
dpfc_ctl |= DPFC_CTL_FENCE_EN | obj->fence_reg;
I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY);
- I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
- (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) |
- (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT));
I915_WRITE(DPFC_FENCE_YOFF, crtc->y);
/* enable it... */
u32 blt_ecoskpd;
/* Make sure blitter notifies FBC of writes */
- gen6_gt_force_wake_get(dev_priv);
+
+ /* Blitter is part of Media powerwell on VLV. No impact of
+ * his param in other platforms for now */
+ gen6_gt_force_wake_get(dev_priv, FORCEWAKE_MEDIA);
+
blt_ecoskpd = I915_READ(GEN6_BLITTER_ECOSKPD);
blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY <<
GEN6_BLITTER_LOCK_SHIFT;
GEN6_BLITTER_LOCK_SHIFT);
I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd);
POSTING_READ(GEN6_BLITTER_ECOSKPD);
- gen6_gt_force_wake_put(dev_priv);
+
+ gen6_gt_force_wake_put(dev_priv, FORCEWAKE_MEDIA);
}
-static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void ironlake_enable_fbc(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
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;
u32 dpfc_ctl;
dpfc_ctl = I915_READ(ILK_DPFC_CONTROL);
dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X);
/* Set persistent mode for front-buffer rendering, ala X. */
dpfc_ctl |= DPFC_CTL_PERSISTENT_MODE;
- dpfc_ctl |= (DPFC_CTL_FENCE_EN | obj->fence_reg);
+ dpfc_ctl |= DPFC_CTL_FENCE_EN;
+ if (IS_GEN5(dev))
+ dpfc_ctl |= obj->fence_reg;
I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY);
- I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN |
- (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, i915_gem_obj_ggtt_offset(obj) | ILK_FBC_RT_VALID);
/* enable it... */
return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN;
}
-static void gen7_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void gen7_enable_fbc(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
sandybridge_blit_fbc_update(dev);
- DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane);
+ DRM_DEBUG_KMS("enabled fbc on plane %c\n", plane_name(intel_crtc->plane));
}
bool intel_fbc_enabled(struct drm_device *dev)
* the prior work.
*/
if (work->crtc->fb == work->fb) {
- dev_priv->display.enable_fbc(work->crtc,
- work->interval);
+ dev_priv->display.enable_fbc(work->crtc);
dev_priv->fbc.plane = to_intel_crtc(work->crtc)->plane;
dev_priv->fbc.fb_id = work->crtc->fb->base.id;
dev_priv->fbc.fbc_work = NULL;
}
-static void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
+static void intel_enable_fbc(struct drm_crtc *crtc)
{
struct intel_fbc_work *work;
struct drm_device *dev = crtc->dev;
work = kzalloc(sizeof(*work), GFP_KERNEL);
if (work == NULL) {
DRM_ERROR("Failed to allocate FBC work structure\n");
- dev_priv->display.enable_fbc(crtc, interval);
+ dev_priv->display.enable_fbc(crtc);
return;
}
work->crtc = crtc;
work->fb = crtc->fb;
- work->interval = interval;
INIT_DELAYED_WORK(&work->work, intel_fbc_work_fn);
dev_priv->fbc.fbc_work = work;
const struct drm_display_mode *adjusted_mode;
unsigned int max_width, max_height;
- if (!I915_HAS_FBC(dev)) {
+ if (!HAS_FBC(dev)) {
set_no_fbc_reason(dev_priv, FBC_UNSUPPORTED);
return;
}
DRM_DEBUG_KMS("mode too large for compression, disabling\n");
goto out_disable;
}
- if ((IS_I915GM(dev) || IS_I945GM(dev) || IS_HASWELL(dev)) &&
- intel_crtc->plane != 0) {
+ if ((INTEL_INFO(dev)->gen < 4 || IS_HASWELL(dev)) &&
+ intel_crtc->plane != PLANE_A) {
if (set_no_fbc_reason(dev_priv, FBC_BAD_PLANE))
- DRM_DEBUG_KMS("plane not 0, disabling compression\n");
+ DRM_DEBUG_KMS("plane not A, disabling compression\n");
goto out_disable;
}
intel_disable_fbc(dev);
}
- intel_enable_fbc(crtc, 500);
+ intel_enable_fbc(crtc);
dev_priv->fbc.no_fbc_reason = FBC_OK;
return;
return size;
}
-static int i85x_get_fifo_size(struct drm_device *dev, int plane)
+static int i830_get_fifo_size(struct drm_device *dev, int plane)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t dsparb = I915_READ(DSPARB);
return size;
}
-static int i830_get_fifo_size(struct drm_device *dev, int plane)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- uint32_t dsparb = I915_READ(DSPARB);
- int size;
-
- size = dsparb & 0x7f;
- size >>= 1; /* Convert to cachelines */
-
- DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb,
- plane ? "B" : "A", size);
-
- return size;
-}
-
/* Pineview has different values for various configs */
static const struct intel_watermark_params pineview_display_wm = {
PINEVIEW_DISPLAY_FIFO,
2,
I915_FIFO_LINE_SIZE
};
-static const struct intel_watermark_params i855_wm_info = {
+static const struct intel_watermark_params i830_wm_info = {
I855GM_FIFO_SIZE,
I915_MAX_WM,
1,
2,
I830_FIFO_LINE_SIZE
};
-static const struct intel_watermark_params i830_wm_info = {
+static const struct intel_watermark_params i845_wm_info = {
I830_FIFO_SIZE,
I915_MAX_WM,
1,
I830_FIFO_LINE_SIZE
};
-static const struct intel_watermark_params ironlake_display_wm_info = {
- ILK_DISPLAY_FIFO,
- ILK_DISPLAY_MAXWM,
- ILK_DISPLAY_DFTWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
-static const struct intel_watermark_params ironlake_cursor_wm_info = {
- ILK_CURSOR_FIFO,
- ILK_CURSOR_MAXWM,
- ILK_CURSOR_DFTWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
-static const struct intel_watermark_params ironlake_display_srwm_info = {
- ILK_DISPLAY_SR_FIFO,
- ILK_DISPLAY_MAX_SRWM,
- ILK_DISPLAY_DFT_SRWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
-static const struct intel_watermark_params ironlake_cursor_srwm_info = {
- ILK_CURSOR_SR_FIFO,
- ILK_CURSOR_MAX_SRWM,
- ILK_CURSOR_DFT_SRWM,
- 2,
- ILK_FIFO_LINE_SIZE
-};
-
-static const struct intel_watermark_params sandybridge_display_wm_info = {
- SNB_DISPLAY_FIFO,
- SNB_DISPLAY_MAXWM,
- SNB_DISPLAY_DFTWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
-static const struct intel_watermark_params sandybridge_cursor_wm_info = {
- SNB_CURSOR_FIFO,
- SNB_CURSOR_MAXWM,
- SNB_CURSOR_DFTWM,
- 2,
- SNB_FIFO_LINE_SIZE
-};
-static const 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 const 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
else if (!IS_GEN2(dev))
wm_info = &i915_wm_info;
else
- wm_info = &i855_wm_info;
+ wm_info = &i830_wm_info;
fifo_size = dev_priv->display.get_fifo_size(dev, 0);
crtc = intel_get_crtc_for_plane(dev, 0);
if (IS_I945G(dev) || IS_I945GM(dev))
I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | 0);
else if (IS_I915GM(dev))
- I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN);
+ I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_SELF_EN));
/* Calc sr entries for one plane configs */
if (HAS_FW_BLC(dev) && enabled) {
I915_WRITE(FW_BLC_SELF,
FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
else if (IS_I915GM(dev))
- I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN);
+ I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_SELF_EN));
DRM_DEBUG_KMS("memory self refresh enabled\n");
} else
DRM_DEBUG_KMS("memory self refresh disabled\n");
}
}
-static void i830_update_wm(struct drm_crtc *unused_crtc)
+static void i845_update_wm(struct drm_crtc *unused_crtc)
{
struct drm_device *dev = unused_crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
adjusted_mode = &to_intel_crtc(crtc)->config.adjusted_mode;
planea_wm = intel_calculate_wm(adjusted_mode->crtc_clock,
- &i830_wm_info,
+ &i845_wm_info,
dev_priv->display.get_fifo_size(dev, 0),
4, latency_ns);
fwater_lo = I915_READ(FW_BLC) & ~0xfff;
I915_WRITE(FW_BLC, fwater_lo);
}
-/*
- * 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;
- } else if (INTEL_INFO(dev)->gen >= 6) {
- /* enable FBC WM (except on ILK, where it must remain off) */
- I915_WRITE(DISP_ARB_CTL,
- I915_READ(DISP_ARB_CTL) & ~DISP_FBC_WM_DIS);
- }
-
- 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 plane,
- int latency_ns,
- const struct intel_watermark_params *display,
- const struct intel_watermark_params *cursor,
- int *fbc_wm, int *display_wm, int *cursor_wm)
-{
- struct drm_crtc *crtc;
- const struct drm_display_mode *adjusted_mode;
- unsigned long line_time_us;
- int hdisplay, htotal, pixel_size, clock;
- int line_count, line_size;
- int small, large;
- int entries;
-
- if (!latency_ns) {
- *fbc_wm = *display_wm = *cursor_wm = 0;
- return false;
- }
-
- crtc = intel_get_crtc_for_plane(dev, plane);
- adjusted_mode = &to_intel_crtc(crtc)->config.adjusted_mode;
- clock = adjusted_mode->crtc_clock;
- htotal = adjusted_mode->crtc_htotal;
- hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
- pixel_size = crtc->fb->bits_per_pixel / 8;
-
- 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_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int fbc_wm, plane_wm, cursor_wm;
- unsigned int enabled;
-
- enabled = 0;
- if (g4x_compute_wm0(dev, PIPE_A,
- &ironlake_display_wm_info,
- dev_priv->wm.pri_latency[0] * 100,
- &ironlake_cursor_wm_info,
- dev_priv->wm.cur_latency[0] * 100,
- &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 |= 1 << PIPE_A;
- }
-
- if (g4x_compute_wm0(dev, PIPE_B,
- &ironlake_display_wm_info,
- dev_priv->wm.pri_latency[0] * 100,
- &ironlake_cursor_wm_info,
- dev_priv->wm.cur_latency[0] * 100,
- &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 |= 1 << PIPE_B;
- }
-
- /*
- * Calculate and update the self-refresh watermark only when one
- * display plane is used.
- */
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
-
- if (!single_plane_enabled(enabled))
- return;
- enabled = ffs(enabled) - 1;
-
- /* WM1 */
- if (!ironlake_compute_srwm(dev, 1, enabled,
- dev_priv->wm.pri_latency[1] * 500,
- &ironlake_display_srwm_info,
- &ironlake_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM1_LP_ILK,
- WM1_LP_SR_EN |
- (dev_priv->wm.pri_latency[1] << 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, enabled,
- dev_priv->wm.pri_latency[2] * 500,
- &ironlake_display_srwm_info,
- &ironlake_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM2_LP_ILK,
- WM2_LP_EN |
- (dev_priv->wm.pri_latency[2] << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
-
- /*
- * WM3 is unsupported on ILK, probably because we don't have latency
- * data for that power state
- */
-}
-
-static void sandybridge_update_wm(struct drm_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int latency = dev_priv->wm.pri_latency[0] * 100; /* In unit 0.1us */
- u32 val;
- int fbc_wm, plane_wm, cursor_wm;
- unsigned int enabled;
-
- enabled = 0;
- if (g4x_compute_wm0(dev, PIPE_A,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- val = I915_READ(WM0_PIPEA_ILK);
- val &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK);
- I915_WRITE(WM0_PIPEA_ILK, val |
- ((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 |= 1 << PIPE_A;
- }
-
- if (g4x_compute_wm0(dev, PIPE_B,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- val = I915_READ(WM0_PIPEB_ILK);
- val &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK);
- I915_WRITE(WM0_PIPEB_ILK, val |
- ((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 |= 1 << PIPE_B;
- }
-
- /*
- * 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 (!single_plane_enabled(enabled) ||
- dev_priv->sprite_scaling_enabled)
- return;
- enabled = ffs(enabled) - 1;
-
- /* WM1 */
- if (!ironlake_compute_srwm(dev, 1, enabled,
- dev_priv->wm.pri_latency[1] * 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 |
- (dev_priv->wm.pri_latency[1] << 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, enabled,
- dev_priv->wm.pri_latency[2] * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM2_LP_ILK,
- WM2_LP_EN |
- (dev_priv->wm.pri_latency[2] << 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, enabled,
- dev_priv->wm.pri_latency[3] * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM3_LP_ILK,
- WM3_LP_EN |
- (dev_priv->wm.pri_latency[3] << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
-}
-
-static void ivybridge_update_wm(struct drm_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int latency = dev_priv->wm.pri_latency[0] * 100; /* In unit 0.1us */
- u32 val;
- int fbc_wm, plane_wm, cursor_wm;
- int ignore_fbc_wm, ignore_plane_wm, ignore_cursor_wm;
- unsigned int enabled;
-
- enabled = 0;
- if (g4x_compute_wm0(dev, PIPE_A,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- val = I915_READ(WM0_PIPEA_ILK);
- val &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK);
- I915_WRITE(WM0_PIPEA_ILK, val |
- ((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 |= 1 << PIPE_A;
- }
-
- if (g4x_compute_wm0(dev, PIPE_B,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- val = I915_READ(WM0_PIPEB_ILK);
- val &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK);
- I915_WRITE(WM0_PIPEB_ILK, val |
- ((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 |= 1 << PIPE_B;
- }
-
- if (g4x_compute_wm0(dev, PIPE_C,
- &sandybridge_display_wm_info, latency,
- &sandybridge_cursor_wm_info, latency,
- &plane_wm, &cursor_wm)) {
- val = I915_READ(WM0_PIPEC_IVB);
- val &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK);
- I915_WRITE(WM0_PIPEC_IVB, val |
- ((plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm));
- DRM_DEBUG_KMS("FIFO watermarks For pipe C -"
- " plane %d, cursor: %d\n",
- plane_wm, cursor_wm);
- enabled |= 1 << PIPE_C;
- }
-
- /*
- * 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 (!single_plane_enabled(enabled) ||
- dev_priv->sprite_scaling_enabled)
- return;
- enabled = ffs(enabled) - 1;
-
- /* WM1 */
- if (!ironlake_compute_srwm(dev, 1, enabled,
- dev_priv->wm.pri_latency[1] * 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 |
- (dev_priv->wm.pri_latency[1] << 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, enabled,
- dev_priv->wm.pri_latency[2] * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM2_LP_ILK,
- WM2_LP_EN |
- (dev_priv->wm.pri_latency[2] << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
-
- /* WM3, note we have to correct the cursor latency */
- if (!ironlake_compute_srwm(dev, 3, enabled,
- dev_priv->wm.pri_latency[3] * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &fbc_wm, &plane_wm, &ignore_cursor_wm) ||
- !ironlake_compute_srwm(dev, 3, enabled,
- dev_priv->wm.cur_latency[3] * 500,
- &sandybridge_display_srwm_info,
- &sandybridge_cursor_srwm_info,
- &ignore_fbc_wm, &ignore_plane_wm, &cursor_wm))
- return;
-
- I915_WRITE(WM3_LP_ILK,
- WM3_LP_EN |
- (dev_priv->wm.pri_latency[3] << WM1_LP_LATENCY_SHIFT) |
- (fbc_wm << WM1_LP_FBC_SHIFT) |
- (plane_wm << WM1_LP_SR_SHIFT) |
- cursor_wm);
-}
-
static uint32_t ilk_pipe_pixel_rate(struct drm_device *dev,
struct drm_crtc *crtc)
{
return DIV_ROUND_UP(pri_val * 64, horiz_pixels * bytes_per_pixel) + 2;
}
-struct hsw_pipe_wm_parameters {
+struct ilk_pipe_wm_parameters {
bool active;
uint32_t pipe_htotal;
uint32_t pixel_rate;
struct intel_plane_wm_parameters cur;
};
-struct hsw_wm_maximums {
+struct ilk_wm_maximums {
uint16_t pri;
uint16_t spr;
uint16_t cur;
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_pri_wm(const struct hsw_pipe_wm_parameters *params,
+static uint32_t ilk_compute_pri_wm(const struct ilk_pipe_wm_parameters *params,
uint32_t mem_value,
bool is_lp)
{
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_spr_wm(const struct hsw_pipe_wm_parameters *params,
+static uint32_t ilk_compute_spr_wm(const struct ilk_pipe_wm_parameters *params,
uint32_t mem_value)
{
uint32_t method1, method2;
* For both WM_PIPE and WM_LP.
* mem_value must be in 0.1us units.
*/
-static uint32_t ilk_compute_cur_wm(const struct hsw_pipe_wm_parameters *params,
+static uint32_t ilk_compute_cur_wm(const struct ilk_pipe_wm_parameters *params,
uint32_t mem_value)
{
if (!params->active || !params->cur.enabled)
}
/* Only for WM_LP. */
-static uint32_t ilk_compute_fbc_wm(const struct hsw_pipe_wm_parameters *params,
+static uint32_t ilk_compute_fbc_wm(const struct ilk_pipe_wm_parameters *params,
uint32_t pri_val)
{
if (!params->active || !params->pri.enabled)
int level,
const struct intel_wm_config *config,
enum intel_ddb_partitioning ddb_partitioning,
- struct hsw_wm_maximums *max)
+ struct ilk_wm_maximums *max)
{
max->pri = ilk_plane_wm_max(dev, level, config, ddb_partitioning, false);
max->spr = ilk_plane_wm_max(dev, level, config, ddb_partitioning, true);
}
static bool ilk_validate_wm_level(int level,
- const struct hsw_wm_maximums *max,
+ const struct ilk_wm_maximums *max,
struct intel_wm_level *result)
{
bool ret;
static void ilk_compute_wm_level(struct drm_i915_private *dev_priv,
int level,
- const struct hsw_pipe_wm_parameters *p,
+ const struct ilk_pipe_wm_parameters *p,
struct intel_wm_level *result)
{
uint16_t pri_latency = dev_priv->wm.pri_latency[level];
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (IS_HASWELL(dev)) {
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
uint64_t sskpd = I915_READ64(MCH_SSKPD);
wm[0] = (sskpd >> 56) & 0xFF;
static int ilk_wm_max_level(const struct drm_device *dev)
{
/* how many WM levels are we expecting */
- if (IS_HASWELL(dev))
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
return 4;
else if (INTEL_INFO(dev)->gen >= 6)
return 3;
intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency);
}
-static void hsw_compute_wm_parameters(struct drm_crtc *crtc,
- struct hsw_pipe_wm_parameters *p,
+static void ilk_compute_wm_parameters(struct drm_crtc *crtc,
+ struct ilk_pipe_wm_parameters *p,
struct intel_wm_config *config)
{
struct drm_device *dev = crtc->dev;
p->active = intel_crtc_active(crtc);
if (p->active) {
- p->pipe_htotal = intel_crtc->config.adjusted_mode.htotal;
+ p->pipe_htotal = intel_crtc->config.adjusted_mode.crtc_htotal;
p->pixel_rate = ilk_pipe_pixel_rate(dev, crtc);
p->pri.bytes_per_pixel = crtc->fb->bits_per_pixel / 8;
p->cur.bytes_per_pixel = 4;
/* Compute new watermarks for the pipe */
static bool intel_compute_pipe_wm(struct drm_crtc *crtc,
- const struct hsw_pipe_wm_parameters *params,
+ const struct ilk_pipe_wm_parameters *params,
struct intel_pipe_wm *pipe_wm)
{
struct drm_device *dev = crtc->dev;
.sprites_enabled = params->spr.enabled,
.sprites_scaled = params->spr.scaled,
};
- struct hsw_wm_maximums max;
+ struct ilk_wm_maximums max;
/* LP0 watermarks always use 1/2 DDB partitioning */
ilk_compute_wm_maximums(dev, 0, &config, INTEL_DDB_PART_1_2, &max);
+ /* ILK/SNB: LP2+ watermarks only w/o sprites */
+ if (INTEL_INFO(dev)->gen <= 6 && params->spr.enabled)
+ max_level = 1;
+
+ /* ILK/SNB/IVB: LP1+ watermarks only w/o scaling */
+ if (params->spr.scaled)
+ max_level = 0;
+
for (level = 0; level <= max_level; level++)
ilk_compute_wm_level(dev_priv, level, params,
&pipe_wm->wm[level]);
- pipe_wm->linetime = hsw_compute_linetime_wm(dev, crtc);
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ pipe_wm->linetime = hsw_compute_linetime_wm(dev, crtc);
/* At least LP0 must be valid */
return ilk_validate_wm_level(0, &max, &pipe_wm->wm[0]);
* Merge all low power watermarks for all active pipes.
*/
static void ilk_wm_merge(struct drm_device *dev,
- const struct hsw_wm_maximums *max,
+ const struct intel_wm_config *config,
+ const struct ilk_wm_maximums *max,
struct intel_pipe_wm *merged)
{
int level, max_level = ilk_wm_max_level(dev);
- merged->fbc_wm_enabled = true;
+ /* ILK/SNB/IVB: LP1+ watermarks only w/ single pipe */
+ if ((INTEL_INFO(dev)->gen <= 6 || IS_IVYBRIDGE(dev)) &&
+ config->num_pipes_active > 1)
+ return;
+
+ /* ILK: FBC WM must be disabled always */
+ merged->fbc_wm_enabled = INTEL_INFO(dev)->gen >= 6;
/* merge each WM1+ level */
for (level = 1; level <= max_level; level++) {
wm->fbc_val = 0;
}
}
+
+ /* ILK: LP2+ must be disabled when FBC WM is disabled but FBC enabled */
+ /*
+ * FIXME this is racy. FBC might get enabled later.
+ * What we should check here is whether FBC can be
+ * enabled sometime later.
+ */
+ if (IS_GEN5(dev) && !merged->fbc_wm_enabled && intel_fbc_enabled(dev)) {
+ for (level = 2; level <= max_level; level++) {
+ struct intel_wm_level *wm = &merged->wm[level];
+
+ wm->enable = false;
+ }
+ }
}
static int ilk_wm_lp_to_level(int wm_lp, const struct intel_pipe_wm *pipe_wm)
return wm_lp + (wm_lp >= 2 && pipe_wm->wm[4].enable);
}
-static void hsw_compute_wm_results(struct drm_device *dev,
+/* The value we need to program into the WM_LPx latency field */
+static unsigned int ilk_wm_lp_latency(struct drm_device *dev, int level)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ return 2 * level;
+ else
+ return dev_priv->wm.pri_latency[level];
+}
+
+static void ilk_compute_wm_results(struct drm_device *dev,
const struct intel_pipe_wm *merged,
enum intel_ddb_partitioning partitioning,
- struct hsw_wm_values *results)
+ struct ilk_wm_values *results)
{
struct intel_crtc *intel_crtc;
int level, wm_lp;
break;
results->wm_lp[wm_lp - 1] = WM3_LP_EN |
- ((level * 2) << WM1_LP_LATENCY_SHIFT) |
+ (ilk_wm_lp_latency(dev, level) << WM1_LP_LATENCY_SHIFT) |
(r->pri_val << WM1_LP_SR_SHIFT) |
r->cur_val;
results->wm_lp[wm_lp - 1] |=
r->fbc_val << WM1_LP_FBC_SHIFT;
- results->wm_lp_spr[wm_lp - 1] = r->spr_val;
+ if (INTEL_INFO(dev)->gen <= 6 && r->spr_val) {
+ WARN_ON(wm_lp != 1);
+ results->wm_lp_spr[wm_lp - 1] = WM1S_LP_EN | r->spr_val;
+ } else
+ results->wm_lp_spr[wm_lp - 1] = r->spr_val;
}
/* LP0 register values */
/* Find the result with the highest level enabled. Check for enable_fbc_wm in
* case both are at the same level. Prefer r1 in case they're the same. */
-static struct intel_pipe_wm *hsw_find_best_result(struct drm_device *dev,
+static struct intel_pipe_wm *ilk_find_best_result(struct drm_device *dev,
struct intel_pipe_wm *r1,
struct intel_pipe_wm *r2)
{
#define WM_DIRTY_DDB (1 << 25)
static unsigned int ilk_compute_wm_dirty(struct drm_device *dev,
- const struct hsw_wm_values *old,
- const struct hsw_wm_values *new)
+ const struct ilk_wm_values *old,
+ const struct ilk_wm_values *new)
{
unsigned int dirty = 0;
enum pipe pipe;
return dirty;
}
+static bool _ilk_disable_lp_wm(struct drm_i915_private *dev_priv,
+ unsigned int dirty)
+{
+ struct ilk_wm_values *previous = &dev_priv->wm.hw;
+ bool changed = false;
+
+ if (dirty & WM_DIRTY_LP(3) && previous->wm_lp[2] & WM1_LP_SR_EN) {
+ previous->wm_lp[2] &= ~WM1_LP_SR_EN;
+ I915_WRITE(WM3_LP_ILK, previous->wm_lp[2]);
+ changed = true;
+ }
+ if (dirty & WM_DIRTY_LP(2) && previous->wm_lp[1] & WM1_LP_SR_EN) {
+ previous->wm_lp[1] &= ~WM1_LP_SR_EN;
+ I915_WRITE(WM2_LP_ILK, previous->wm_lp[1]);
+ changed = true;
+ }
+ if (dirty & WM_DIRTY_LP(1) && previous->wm_lp[0] & WM1_LP_SR_EN) {
+ previous->wm_lp[0] &= ~WM1_LP_SR_EN;
+ I915_WRITE(WM1_LP_ILK, previous->wm_lp[0]);
+ changed = true;
+ }
+
+ /*
+ * Don't touch WM1S_LP_EN here.
+ * Doing so could cause underruns.
+ */
+
+ return changed;
+}
+
/*
* The spec says we shouldn't write when we don't need, because every write
* causes WMs to be re-evaluated, expending some power.
*/
-static void hsw_write_wm_values(struct drm_i915_private *dev_priv,
- struct hsw_wm_values *results)
+static void ilk_write_wm_values(struct drm_i915_private *dev_priv,
+ struct ilk_wm_values *results)
{
- struct hsw_wm_values *previous = &dev_priv->wm.hw;
+ struct drm_device *dev = dev_priv->dev;
+ struct ilk_wm_values *previous = &dev_priv->wm.hw;
unsigned int dirty;
uint32_t val;
- dirty = ilk_compute_wm_dirty(dev_priv->dev, previous, results);
+ dirty = ilk_compute_wm_dirty(dev, previous, results);
if (!dirty)
return;
- if (dirty & WM_DIRTY_LP(3) && previous->wm_lp[2] != 0)
- I915_WRITE(WM3_LP_ILK, 0);
- if (dirty & WM_DIRTY_LP(2) && previous->wm_lp[1] != 0)
- I915_WRITE(WM2_LP_ILK, 0);
- if (dirty & WM_DIRTY_LP(1) && previous->wm_lp[0] != 0)
- I915_WRITE(WM1_LP_ILK, 0);
+ _ilk_disable_lp_wm(dev_priv, dirty);
if (dirty & WM_DIRTY_PIPE(PIPE_A))
I915_WRITE(WM0_PIPEA_ILK, results->wm_pipe[0]);
I915_WRITE(PIPE_WM_LINETIME(PIPE_C), results->wm_linetime[2]);
if (dirty & WM_DIRTY_DDB) {
- val = I915_READ(WM_MISC);
- if (results->partitioning == INTEL_DDB_PART_1_2)
- val &= ~WM_MISC_DATA_PARTITION_5_6;
- else
- val |= WM_MISC_DATA_PARTITION_5_6;
- I915_WRITE(WM_MISC, val);
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
+ val = I915_READ(WM_MISC);
+ if (results->partitioning == INTEL_DDB_PART_1_2)
+ val &= ~WM_MISC_DATA_PARTITION_5_6;
+ else
+ val |= WM_MISC_DATA_PARTITION_5_6;
+ I915_WRITE(WM_MISC, val);
+ } else {
+ val = I915_READ(DISP_ARB_CTL2);
+ if (results->partitioning == INTEL_DDB_PART_1_2)
+ val &= ~DISP_DATA_PARTITION_5_6;
+ else
+ val |= DISP_DATA_PARTITION_5_6;
+ I915_WRITE(DISP_ARB_CTL2, val);
+ }
}
if (dirty & WM_DIRTY_FBC) {
I915_WRITE(DISP_ARB_CTL, val);
}
- if (dirty & WM_DIRTY_LP(1) && previous->wm_lp_spr[0] != results->wm_lp_spr[0])
+ if (dirty & WM_DIRTY_LP(1) &&
+ previous->wm_lp_spr[0] != results->wm_lp_spr[0])
I915_WRITE(WM1S_LP_ILK, results->wm_lp_spr[0]);
- if (dirty & WM_DIRTY_LP(2) && previous->wm_lp_spr[1] != results->wm_lp_spr[1])
- I915_WRITE(WM2S_LP_IVB, results->wm_lp_spr[1]);
- if (dirty & WM_DIRTY_LP(3) && previous->wm_lp_spr[2] != results->wm_lp_spr[2])
- I915_WRITE(WM3S_LP_IVB, results->wm_lp_spr[2]);
- if (dirty & WM_DIRTY_LP(1) && results->wm_lp[0] != 0)
+ if (INTEL_INFO(dev)->gen >= 7) {
+ if (dirty & WM_DIRTY_LP(2) && previous->wm_lp_spr[1] != results->wm_lp_spr[1])
+ I915_WRITE(WM2S_LP_IVB, results->wm_lp_spr[1]);
+ if (dirty & WM_DIRTY_LP(3) && previous->wm_lp_spr[2] != results->wm_lp_spr[2])
+ I915_WRITE(WM3S_LP_IVB, results->wm_lp_spr[2]);
+ }
+
+ if (dirty & WM_DIRTY_LP(1) && previous->wm_lp[0] != results->wm_lp[0])
I915_WRITE(WM1_LP_ILK, results->wm_lp[0]);
- if (dirty & WM_DIRTY_LP(2) && results->wm_lp[1] != 0)
+ if (dirty & WM_DIRTY_LP(2) && previous->wm_lp[1] != results->wm_lp[1])
I915_WRITE(WM2_LP_ILK, results->wm_lp[1]);
- if (dirty & WM_DIRTY_LP(3) && results->wm_lp[2] != 0)
+ if (dirty & WM_DIRTY_LP(3) && previous->wm_lp[2] != results->wm_lp[2])
I915_WRITE(WM3_LP_ILK, results->wm_lp[2]);
dev_priv->wm.hw = *results;
}
-static void haswell_update_wm(struct drm_crtc *crtc)
+static bool ilk_disable_lp_wm(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ return _ilk_disable_lp_wm(dev_priv, WM_DIRTY_LP_ALL);
+}
+
+static void ilk_update_wm(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct hsw_wm_maximums max;
- struct hsw_pipe_wm_parameters params = {};
- struct hsw_wm_values results = {};
+ struct ilk_wm_maximums max;
+ struct ilk_pipe_wm_parameters params = {};
+ struct ilk_wm_values results = {};
enum intel_ddb_partitioning partitioning;
struct intel_pipe_wm pipe_wm = {};
struct intel_pipe_wm lp_wm_1_2 = {}, lp_wm_5_6 = {}, *best_lp_wm;
struct intel_wm_config config = {};
- hsw_compute_wm_parameters(crtc, ¶ms, &config);
+ ilk_compute_wm_parameters(crtc, ¶ms, &config);
intel_compute_pipe_wm(crtc, ¶ms, &pipe_wm);
intel_crtc->wm.active = pipe_wm;
ilk_compute_wm_maximums(dev, 1, &config, INTEL_DDB_PART_1_2, &max);
- ilk_wm_merge(dev, &max, &lp_wm_1_2);
+ ilk_wm_merge(dev, &config, &max, &lp_wm_1_2);
/* 5/6 split only in single pipe config on IVB+ */
if (INTEL_INFO(dev)->gen >= 7 &&
config.num_pipes_active == 1 && config.sprites_enabled) {
ilk_compute_wm_maximums(dev, 1, &config, INTEL_DDB_PART_5_6, &max);
- ilk_wm_merge(dev, &max, &lp_wm_5_6);
+ ilk_wm_merge(dev, &config, &max, &lp_wm_5_6);
- best_lp_wm = hsw_find_best_result(dev, &lp_wm_1_2, &lp_wm_5_6);
+ best_lp_wm = ilk_find_best_result(dev, &lp_wm_1_2, &lp_wm_5_6);
} else {
best_lp_wm = &lp_wm_1_2;
}
partitioning = (best_lp_wm == &lp_wm_1_2) ?
INTEL_DDB_PART_1_2 : INTEL_DDB_PART_5_6;
- hsw_compute_wm_results(dev, best_lp_wm, partitioning, &results);
+ ilk_compute_wm_results(dev, best_lp_wm, partitioning, &results);
- hsw_write_wm_values(dev_priv, &results);
+ ilk_write_wm_values(dev_priv, &results);
}
-static void haswell_update_sprite_wm(struct drm_plane *plane,
+static void ilk_update_sprite_wm(struct drm_plane *plane,
struct drm_crtc *crtc,
uint32_t sprite_width, int pixel_size,
bool enabled, bool scaled)
{
+ struct drm_device *dev = plane->dev;
struct intel_plane *intel_plane = to_intel_plane(plane);
intel_plane->wm.enabled = enabled;
intel_plane->wm.horiz_pixels = sprite_width;
intel_plane->wm.bytes_per_pixel = pixel_size;
- haswell_update_wm(crtc);
-}
-
-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 (!intel_crtc_active(crtc)) {
- *sprite_wm = display->guard_size;
- return false;
- }
-
- clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_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 = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock;
- if (!clock) {
- *sprite_wm = 0;
- return false;
- }
-
- line_time_us = (sprite_width * 1000) / clock;
- if (!line_time_us) {
- *sprite_wm = 0;
- return false;
- }
-
- 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_plane *plane,
- struct drm_crtc *crtc,
- uint32_t sprite_width, int pixel_size,
- bool enabled, bool scaled)
-{
- struct drm_device *dev = plane->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int pipe = to_intel_plane(plane)->pipe;
- int latency = dev_priv->wm.spr_latency[0] * 100; /* In unit 0.1us */
- u32 val;
- int sprite_wm, reg;
- int ret;
-
- if (!enabled)
- return;
-
- 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 %c\n",
- pipe_name(pipe));
- return;
- }
-
- val = I915_READ(reg);
- val &= ~WM0_PIPE_SPRITE_MASK;
- I915_WRITE(reg, val | (sprite_wm << WM0_PIPE_SPRITE_SHIFT));
- DRM_DEBUG_KMS("sprite watermarks For pipe %c - %d\n", pipe_name(pipe), sprite_wm);
-
-
- ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
- pixel_size,
- &sandybridge_display_srwm_info,
- dev_priv->wm.spr_latency[1] * 500,
- &sprite_wm);
- if (!ret) {
- DRM_DEBUG_KMS("failed to compute sprite lp1 wm on pipe %c\n",
- pipe_name(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,
- dev_priv->wm.spr_latency[2] * 500,
- &sprite_wm);
- if (!ret) {
- DRM_DEBUG_KMS("failed to compute sprite lp2 wm on pipe %c\n",
- pipe_name(pipe));
- return;
- }
- I915_WRITE(WM2S_LP_IVB, sprite_wm);
+ /*
+ * IVB workaround: must disable low power watermarks for at least
+ * one frame before enabling scaling. LP watermarks can be re-enabled
+ * when scaling is disabled.
+ *
+ * WaCxSRDisabledForSpriteScaling:ivb
+ */
+ if (IS_IVYBRIDGE(dev) && scaled && ilk_disable_lp_wm(dev))
+ intel_wait_for_vblank(dev, intel_plane->pipe);
- ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
- pixel_size,
- &sandybridge_display_srwm_info,
- dev_priv->wm.spr_latency[3] * 500,
- &sprite_wm);
- if (!ret) {
- DRM_DEBUG_KMS("failed to compute sprite lp3 wm on pipe %c\n",
- pipe_name(pipe));
- return;
- }
- I915_WRITE(WM3S_LP_IVB, sprite_wm);
+ ilk_update_wm(crtc);
}
static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct hsw_wm_values *hw = &dev_priv->wm.hw;
+ struct ilk_wm_values *hw = &dev_priv->wm.hw;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_pipe_wm *active = &intel_crtc->wm.active;
enum pipe pipe = intel_crtc->pipe;
};
hw->wm_pipe[pipe] = I915_READ(wm0_pipe_reg[pipe]);
- hw->wm_linetime[pipe] = I915_READ(PIPE_WM_LINETIME(pipe));
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ hw->wm_linetime[pipe] = I915_READ(PIPE_WM_LINETIME(pipe));
if (intel_crtc_active(crtc)) {
u32 tmp = hw->wm_pipe[pipe];
void ilk_wm_get_hw_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct hsw_wm_values *hw = &dev_priv->wm.hw;
+ struct ilk_wm_values *hw = &dev_priv->wm.hw;
struct drm_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
hw->wm_lp_spr[1] = I915_READ(WM2S_LP_IVB);
hw->wm_lp_spr[2] = I915_READ(WM3S_LP_IVB);
- hw->partitioning = (I915_READ(WM_MISC) & WM_MISC_DATA_PARTITION_5_6) ?
- INTEL_DDB_PART_5_6 : INTEL_DDB_PART_1_2;
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ hw->partitioning = (I915_READ(WM_MISC) & WM_MISC_DATA_PARTITION_5_6) ?
+ INTEL_DDB_PART_5_6 : INTEL_DDB_PART_1_2;
+ else if (IS_IVYBRIDGE(dev))
+ hw->partitioning = (I915_READ(DISP_ARB_CTL2) & DISP_DATA_PARTITION_5_6) ?
+ INTEL_DDB_PART_5_6 : INTEL_DDB_PART_1_2;
hw->enable_fbc_wm =
!(I915_READ(DISP_ARB_CTL) & DISP_FBC_WM_DIS);
* ourselves, instead of doing a rmw cycle (which might result in us clearing
* all limits and the gpu stuck at whatever frequency it is at atm).
*/
-static u32 gen6_rps_limits(struct drm_i915_private *dev_priv, u8 *val)
+static u32 gen6_rps_limits(struct drm_i915_private *dev_priv, u8 val)
{
u32 limits;
- limits = 0;
-
- if (*val >= dev_priv->rps.max_delay)
- *val = dev_priv->rps.max_delay;
- limits |= dev_priv->rps.max_delay << 24;
-
/* Only set the down limit when we've reached the lowest level to avoid
* getting more interrupts, otherwise leave this clear. This prevents a
* race in the hw when coming out of rc6: There's a tiny window where
* the hw runs at the minimal clock before selecting the desired
* frequency, if the down threshold expires in that window we will not
* receive a down interrupt. */
- if (*val <= dev_priv->rps.min_delay) {
- *val = dev_priv->rps.min_delay;
+ limits = dev_priv->rps.max_delay << 24;
+ if (val <= dev_priv->rps.min_delay)
limits |= dev_priv->rps.min_delay << 16;
- }
return limits;
}
void gen6_set_rps(struct drm_device *dev, u8 val)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 limits = gen6_rps_limits(dev_priv, &val);
WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
WARN_ON(val > dev_priv->rps.max_delay);
/* Make sure we continue to get interrupts
* until we hit the minimum or maximum frequencies.
*/
- I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, limits);
+ I915_WRITE(GEN6_RP_INTERRUPT_LIMITS,
+ gen6_rps_limits(dev_priv, val));
POSTING_READ(GEN6_RPNSWREQ);
void gen6_rps_idle(struct drm_i915_private *dev_priv)
{
+ struct drm_device *dev = dev_priv->dev;
+
mutex_lock(&dev_priv->rps.hw_lock);
if (dev_priv->rps.enabled) {
- if (dev_priv->info->is_valleyview)
+ if (IS_VALLEYVIEW(dev))
valleyview_set_rps(dev_priv->dev, dev_priv->rps.min_delay);
else
gen6_set_rps(dev_priv->dev, dev_priv->rps.min_delay);
void gen6_rps_boost(struct drm_i915_private *dev_priv)
{
+ struct drm_device *dev = dev_priv->dev;
+
mutex_lock(&dev_priv->rps.hw_lock);
if (dev_priv->rps.enabled) {
- if (dev_priv->info->is_valleyview)
+ if (IS_VALLEYVIEW(dev))
valleyview_set_rps(dev_priv->dev, dev_priv->rps.max_delay);
else
gen6_set_rps(dev_priv->dev, dev_priv->rps.max_delay);
mutex_unlock(&dev_priv->rps.hw_lock);
}
-/*
- * Wait until the previous freq change has completed,
- * or the timeout elapsed, and then update our notion
- * of the current GPU frequency.
- */
-static void vlv_update_rps_cur_delay(struct drm_i915_private *dev_priv)
-{
- u32 pval;
-
- WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
-
- if (wait_for(((pval = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS)) & GENFREQSTATUS) == 0, 10))
- DRM_DEBUG_DRIVER("timed out waiting for Punit\n");
-
- pval >>= 8;
-
- if (pval != dev_priv->rps.cur_delay)
- DRM_DEBUG_DRIVER("Punit overrode GPU freq: %d MHz (%u) requested, but got %d Mhz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.cur_delay),
- dev_priv->rps.cur_delay,
- vlv_gpu_freq(dev_priv->mem_freq, pval), pval);
-
- dev_priv->rps.cur_delay = pval;
-}
-
void valleyview_set_rps(struct drm_device *dev, u8 val)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- gen6_rps_limits(dev_priv, &val);
-
WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
WARN_ON(val > dev_priv->rps.max_delay);
WARN_ON(val < dev_priv->rps.min_delay);
- vlv_update_rps_cur_delay(dev_priv);
-
DRM_DEBUG_DRIVER("GPU freq request from %d MHz (%u) to %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.cur_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.cur_delay),
dev_priv->rps.cur_delay,
- vlv_gpu_freq(dev_priv->mem_freq, val), val);
+ vlv_gpu_freq(dev_priv, val), val);
if (val == dev_priv->rps.cur_delay)
return;
dev_priv->rps.cur_delay = val;
- trace_intel_gpu_freq_change(vlv_gpu_freq(dev_priv->mem_freq, val));
+ trace_intel_gpu_freq_change(vlv_gpu_freq(dev_priv, val));
}
static void gen6_disable_rps_interrupts(struct drm_device *dev)
/* 1c & 1d: Get forcewake during program sequence. Although the driver
* hasn't enabled a state yet where we need forcewake, BIOS may have.*/
- gen6_gt_force_wake_get(dev_priv);
+ gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
/* 2a: Disable RC states. */
I915_WRITE(GEN6_RC_CONTROL, 0);
gen6_enable_rps_interrupts(dev);
- gen6_gt_force_wake_put(dev_priv);
+ gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
}
static void gen6_enable_rps(struct drm_device *dev)
I915_WRITE(GTFIFODBG, gtfifodbg);
}
- gen6_gt_force_wake_get(dev_priv);
+ gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
DRM_ERROR("Couldn't fix incorrect rc6 voltage\n");
}
- gen6_gt_force_wake_put(dev_priv);
+ gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
}
void gen6_update_ring_freq(struct drm_device *dev)
u32 pcbr;
int pctx_size = 24*1024;
+ WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+
pcbr = I915_READ(VLV_PCBR);
if (pcbr) {
/* BIOS set it up already, grab the pre-alloc'd space */
I915_WRITE(GTFIFODBG, gtfifodbg);
}
- valleyview_setup_pctx(dev);
-
- gen6_gt_force_wake_get(dev_priv);
+ /* If VLV, Forcewake all wells, else re-direct to regular path */
+ gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
I915_WRITE(GEN6_RP_UP_THRESHOLD, 59400);
I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 245000);
for_each_ring(ring, dev_priv, i)
I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
- I915_WRITE(GEN6_RC6_THRESHOLD, 0xc350);
+ I915_WRITE(GEN6_RC6_THRESHOLD, 0x557);
/* allows RC6 residency counter to work */
I915_WRITE(VLV_COUNTER_CONTROL,
VLV_MEDIA_RC6_COUNT_EN |
VLV_RENDER_RC6_COUNT_EN));
if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
- rc6_mode = GEN7_RC_CTL_TO_MODE;
+ rc6_mode = GEN7_RC_CTL_TO_MODE | VLV_RC_CTL_CTX_RST_PARALLEL;
intel_print_rc6_info(dev, rc6_mode);
I915_WRITE(GEN6_RC_CONTROL, rc6_mode);
val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
- switch ((val >> 6) & 3) {
- case 0:
- case 1:
- dev_priv->mem_freq = 800;
- break;
- case 2:
- dev_priv->mem_freq = 1066;
- break;
- case 3:
- dev_priv->mem_freq = 1333;
- break;
- }
- DRM_DEBUG_DRIVER("DDR speed: %d MHz", dev_priv->mem_freq);
DRM_DEBUG_DRIVER("GPLL enabled? %s\n", val & 0x10 ? "yes" : "no");
DRM_DEBUG_DRIVER("GPU status: 0x%08x\n", val);
dev_priv->rps.cur_delay = (val >> 8) & 0xff;
DRM_DEBUG_DRIVER("current GPU freq: %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.cur_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.cur_delay),
dev_priv->rps.cur_delay);
dev_priv->rps.max_delay = valleyview_rps_max_freq(dev_priv);
dev_priv->rps.hw_max = dev_priv->rps.max_delay;
DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.max_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.max_delay),
dev_priv->rps.max_delay);
dev_priv->rps.rpe_delay = valleyview_rps_rpe_freq(dev_priv);
DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.rpe_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.rpe_delay),
dev_priv->rps.rpe_delay);
dev_priv->rps.min_delay = valleyview_rps_min_freq(dev_priv);
DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.min_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.min_delay),
dev_priv->rps.min_delay);
DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n",
- vlv_gpu_freq(dev_priv->mem_freq,
- dev_priv->rps.rpe_delay),
+ vlv_gpu_freq(dev_priv, dev_priv->rps.rpe_delay),
dev_priv->rps.rpe_delay);
valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay);
gen6_enable_rps_interrupts(dev);
- gen6_gt_force_wake_put(dev_priv);
+ gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
}
void ironlake_teardown_rc6(struct drm_device *dev)
ironlake_enable_rc6(dev);
intel_init_emon(dev);
} else if (IS_GEN6(dev) || IS_GEN7(dev)) {
+ if (IS_VALLEYVIEW(dev))
+ valleyview_setup_pctx(dev);
/*
* PCU communication is slow and this doesn't need to be
* done at any specific time, so do this out of our fast path
}
}
+static void ilk_init_lp_watermarks(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(WM3_LP_ILK, I915_READ(WM3_LP_ILK) & ~WM1_LP_SR_EN);
+ I915_WRITE(WM2_LP_ILK, I915_READ(WM2_LP_ILK) & ~WM1_LP_SR_EN);
+ I915_WRITE(WM1_LP_ILK, I915_READ(WM1_LP_ILK) & ~WM1_LP_SR_EN);
+
+ /*
+ * Don't touch WM1S_LP_EN here.
+ * Doing so could cause underruns.
+ */
+}
+
static void ironlake_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
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);
+
+ ilk_init_lp_watermarks(dev);
/*
* Based on the document from hardware guys the following bits
I915_WRITE(GEN6_GT_MODE,
_MASKED_BIT_ENABLE(GEN6_TD_FOUR_ROW_DISPATCH_DISABLE));
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ ilk_init_lp_watermarks(dev);
I915_WRITE(CACHE_MODE_0,
_MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB));
I915_WRITE(GEN7_HALF_SLICE_CHICKEN1,
_MASKED_BIT_ENABLE(GEN7_SINGLE_SUBSCAN_DISPATCH_ENABLE));
- /* WaSwitchSolVfFArbitrationPriority */
+ /* WaSwitchSolVfFArbitrationPriority:bdw */
I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);
- /* WaPsrDPAMaskVBlankInSRD */
+ /* WaPsrDPAMaskVBlankInSRD:bdw */
I915_WRITE(CHICKEN_PAR1_1,
I915_READ(CHICKEN_PAR1_1) | DPA_MASK_VBLANK_SRD);
- /* WaPsrDPRSUnmaskVBlankInSRD */
+ /* WaPsrDPRSUnmaskVBlankInSRD:bdw */
for_each_pipe(i) {
I915_WRITE(CHICKEN_PIPESL_1(i),
I915_READ(CHICKEN_PIPESL_1(i) |
DPRS_MASK_VBLANK_SRD));
}
+
+ /* Use Force Non-Coherent whenever executing a 3D context. This is a
+ * workaround for for a possible hang in the unlikely event a TLB
+ * invalidation occurs during a PSD flush.
+ */
+ I915_WRITE(HDC_CHICKEN0,
+ I915_READ(HDC_CHICKEN0) |
+ _MASKED_BIT_ENABLE(HDC_FORCE_NON_COHERENT));
+
+ /* WaVSRefCountFullforceMissDisable:bdw */
+ /* WaDSRefCountFullforceMissDisable:bdw */
+ I915_WRITE(GEN7_FF_THREAD_MODE,
+ I915_READ(GEN7_FF_THREAD_MODE) &
+ ~(GEN8_FF_DS_REF_CNT_FFME | GEN7_FF_VS_REF_CNT_FFME));
}
static void haswell_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ ilk_init_lp_watermarks(dev);
/* According to the spec, bit 13 (RCZUNIT) must be set on IVB.
* This implements the WaDisableRCZUnitClockGating:hsw workaround.
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t snpcr;
- I915_WRITE(WM3_LP_ILK, 0);
- I915_WRITE(WM2_LP_ILK, 0);
- I915_WRITE(WM1_LP_ILK, 0);
+ ilk_init_lp_watermarks(dev);
I915_WRITE(ILK_DSPCLK_GATE_D, ILK_VRHUNIT_CLOCK_GATE_DISABLE);
static void valleyview_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val;
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
+ mutex_unlock(&dev_priv->rps.hw_lock);
+ switch ((val >> 6) & 3) {
+ case 0:
+ dev_priv->mem_freq = 800;
+ break;
+ case 1:
+ dev_priv->mem_freq = 1066;
+ break;
+ case 2:
+ dev_priv->mem_freq = 1333;
+ break;
+ case 3:
+ dev_priv->mem_freq = 1333;
+ break;
+ }
+ DRM_DEBUG_DRIVER("DDR speed: %d MHz", dev_priv->mem_freq);
I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE);
lpt_suspend_hw(dev);
}
-static bool is_always_on_power_domain(struct drm_device *dev,
- enum intel_display_power_domain domain)
-{
- unsigned long always_on_domains;
-
- BUG_ON(BIT(domain) & ~POWER_DOMAIN_MASK);
-
- if (IS_BROADWELL(dev)) {
- always_on_domains = BDW_ALWAYS_ON_POWER_DOMAINS;
- } else if (IS_HASWELL(dev)) {
- always_on_domains = HSW_ALWAYS_ON_POWER_DOMAINS;
- } else {
- WARN_ON(1);
- return true;
- }
+#define for_each_power_well(i, power_well, domain_mask, power_domains) \
+ for (i = 0; \
+ i < (power_domains)->power_well_count && \
+ ((power_well) = &(power_domains)->power_wells[i]); \
+ i++) \
+ if ((power_well)->domains & (domain_mask))
- return BIT(domain) & always_on_domains;
-}
+#define for_each_power_well_rev(i, power_well, domain_mask, power_domains) \
+ for (i = (power_domains)->power_well_count - 1; \
+ i >= 0 && ((power_well) = &(power_domains)->power_wells[i]);\
+ i--) \
+ if ((power_well)->domains & (domain_mask))
/**
* We should only use the power well if we explicitly asked the hardware to
* enable it, so check if it's enabled and also check if we've requested it to
* be enabled.
*/
+static bool hsw_power_well_enabled(struct drm_device *dev,
+ struct i915_power_well *power_well)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ return I915_READ(HSW_PWR_WELL_DRIVER) ==
+ (HSW_PWR_WELL_ENABLE_REQUEST | HSW_PWR_WELL_STATE_ENABLED);
+}
+
+bool intel_display_power_enabled_sw(struct drm_device *dev,
+ enum intel_display_power_domain domain)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct i915_power_domains *power_domains;
+
+ power_domains = &dev_priv->power_domains;
+
+ return power_domains->domain_use_count[domain];
+}
+
bool intel_display_power_enabled(struct drm_device *dev,
enum intel_display_power_domain domain)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct i915_power_domains *power_domains;
+ struct i915_power_well *power_well;
+ bool is_enabled;
+ int i;
+
+ power_domains = &dev_priv->power_domains;
- if (!HAS_POWER_WELL(dev))
- return true;
+ is_enabled = true;
- if (is_always_on_power_domain(dev, domain))
- return true;
+ mutex_lock(&power_domains->lock);
+ for_each_power_well_rev(i, power_well, BIT(domain), power_domains) {
+ if (power_well->always_on)
+ continue;
- return I915_READ(HSW_PWR_WELL_DRIVER) ==
- (HSW_PWR_WELL_ENABLE_REQUEST | HSW_PWR_WELL_STATE_ENABLED);
+ if (!power_well->is_enabled(dev, power_well)) {
+ is_enabled = false;
+ break;
+ }
+ }
+ mutex_unlock(&power_domains->lock);
+
+ return is_enabled;
+}
+
+static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ unsigned long irqflags;
+
+ /*
+ * After we re-enable the power well, if we touch VGA register 0x3d5
+ * we'll get unclaimed register interrupts. This stops after we write
+ * anything to the VGA MSR register. The vgacon module uses this
+ * register all the time, so if we unbind our driver and, as a
+ * consequence, bind vgacon, we'll get stuck in an infinite loop at
+ * console_unlock(). So make here we touch the VGA MSR register, making
+ * sure vgacon can keep working normally without triggering interrupts
+ * and error messages.
+ */
+ vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
+ outb(inb(VGA_MSR_READ), VGA_MSR_WRITE);
+ vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
+
+ if (IS_BROADWELL(dev)) {
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_B),
+ dev_priv->de_irq_mask[PIPE_B]);
+ I915_WRITE(GEN8_DE_PIPE_IER(PIPE_B),
+ ~dev_priv->de_irq_mask[PIPE_B] |
+ GEN8_PIPE_VBLANK);
+ I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_C),
+ dev_priv->de_irq_mask[PIPE_C]);
+ I915_WRITE(GEN8_DE_PIPE_IER(PIPE_C),
+ ~dev_priv->de_irq_mask[PIPE_C] |
+ GEN8_PIPE_VBLANK);
+ POSTING_READ(GEN8_DE_PIPE_IER(PIPE_C));
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+ }
+}
+
+static void hsw_power_well_post_disable(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ enum pipe p;
+ unsigned long irqflags;
+
+ /*
+ * After this, the registers on the pipes that are part of the power
+ * well will become zero, so we have to adjust our counters according to
+ * that.
+ *
+ * FIXME: Should we do this in general in drm_vblank_post_modeset?
+ */
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ for_each_pipe(p)
+ if (p != PIPE_A)
+ dev->vblank[p].last = 0;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
}
-static void __intel_set_power_well(struct drm_device *dev, bool enable)
+static void hsw_set_power_well(struct drm_device *dev,
+ struct i915_power_well *power_well, bool enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
bool is_enabled, enable_requested;
- unsigned long irqflags;
uint32_t tmp;
WARN_ON(dev_priv->pc8.enabled);
DRM_ERROR("Timeout enabling power well\n");
}
- if (IS_BROADWELL(dev)) {
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_B),
- dev_priv->de_irq_mask[PIPE_B]);
- I915_WRITE(GEN8_DE_PIPE_IER(PIPE_B),
- ~dev_priv->de_irq_mask[PIPE_B] |
- GEN8_PIPE_VBLANK);
- I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_C),
- dev_priv->de_irq_mask[PIPE_C]);
- I915_WRITE(GEN8_DE_PIPE_IER(PIPE_C),
- ~dev_priv->de_irq_mask[PIPE_C] |
- GEN8_PIPE_VBLANK);
- POSTING_READ(GEN8_DE_PIPE_IER(PIPE_C));
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
- }
+ hsw_power_well_post_enable(dev_priv);
} else {
if (enable_requested) {
- enum pipe p;
-
I915_WRITE(HSW_PWR_WELL_DRIVER, 0);
POSTING_READ(HSW_PWR_WELL_DRIVER);
DRM_DEBUG_KMS("Requesting to disable the power well\n");
- /*
- * After this, the registers on the pipes that are part
- * of the power well will become zero, so we have to
- * adjust our counters according to that.
- *
- * FIXME: Should we do this in general in
- * drm_vblank_post_modeset?
- */
- spin_lock_irqsave(&dev->vbl_lock, irqflags);
- for_each_pipe(p)
- if (p != PIPE_A)
- dev->vblank[p].last = 0;
- spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ hsw_power_well_post_disable(dev_priv);
}
}
}
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (!power_well->count++) {
+ if (!power_well->count++ && power_well->set) {
hsw_disable_package_c8(dev_priv);
- __intel_set_power_well(dev, true);
+ power_well->set(dev, power_well, true);
}
}
struct drm_i915_private *dev_priv = dev->dev_private;
WARN_ON(!power_well->count);
- if (!--power_well->count && i915_disable_power_well) {
- __intel_set_power_well(dev, false);
+
+ if (!--power_well->count && power_well->set &&
+ i915_disable_power_well) {
+ power_well->set(dev, power_well, false);
hsw_enable_package_c8(dev_priv);
}
}
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_power_domains *power_domains;
-
- if (!HAS_POWER_WELL(dev))
- return;
-
- if (is_always_on_power_domain(dev, domain))
- return;
+ struct i915_power_well *power_well;
+ int i;
power_domains = &dev_priv->power_domains;
mutex_lock(&power_domains->lock);
- __intel_power_well_get(dev, &power_domains->power_wells[0]);
+
+ for_each_power_well(i, power_well, BIT(domain), power_domains)
+ __intel_power_well_get(dev, power_well);
+
+ power_domains->domain_use_count[domain]++;
+
mutex_unlock(&power_domains->lock);
}
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_power_domains *power_domains;
-
- if (!HAS_POWER_WELL(dev))
- return;
-
- if (is_always_on_power_domain(dev, domain))
- return;
+ struct i915_power_well *power_well;
+ int i;
power_domains = &dev_priv->power_domains;
mutex_lock(&power_domains->lock);
- __intel_power_well_put(dev, &power_domains->power_wells[0]);
+
+ WARN_ON(!power_domains->domain_use_count[domain]);
+ power_domains->domain_use_count[domain]--;
+
+ for_each_power_well_rev(i, power_well, BIT(domain), power_domains)
+ __intel_power_well_put(dev, power_well);
+
mutex_unlock(&power_domains->lock);
}
dev_priv = container_of(hsw_pwr, struct drm_i915_private,
power_domains);
-
- mutex_lock(&hsw_pwr->lock);
- __intel_power_well_get(dev_priv->dev, &hsw_pwr->power_wells[0]);
- mutex_unlock(&hsw_pwr->lock);
+ intel_display_power_get(dev_priv->dev, POWER_DOMAIN_AUDIO);
}
EXPORT_SYMBOL_GPL(i915_request_power_well);
dev_priv = container_of(hsw_pwr, struct drm_i915_private,
power_domains);
-
- mutex_lock(&hsw_pwr->lock);
- __intel_power_well_put(dev_priv->dev, &hsw_pwr->power_wells[0]);
- mutex_unlock(&hsw_pwr->lock);
+ intel_display_power_put(dev_priv->dev, POWER_DOMAIN_AUDIO);
}
EXPORT_SYMBOL_GPL(i915_release_power_well);
+static struct i915_power_well i9xx_always_on_power_well[] = {
+ {
+ .name = "always-on",
+ .always_on = 1,
+ .domains = POWER_DOMAIN_MASK,
+ },
+};
+
+static struct i915_power_well hsw_power_wells[] = {
+ {
+ .name = "always-on",
+ .always_on = 1,
+ .domains = HSW_ALWAYS_ON_POWER_DOMAINS,
+ },
+ {
+ .name = "display",
+ .domains = POWER_DOMAIN_MASK & ~HSW_ALWAYS_ON_POWER_DOMAINS,
+ .is_enabled = hsw_power_well_enabled,
+ .set = hsw_set_power_well,
+ },
+};
+
+static struct i915_power_well bdw_power_wells[] = {
+ {
+ .name = "always-on",
+ .always_on = 1,
+ .domains = BDW_ALWAYS_ON_POWER_DOMAINS,
+ },
+ {
+ .name = "display",
+ .domains = POWER_DOMAIN_MASK & ~BDW_ALWAYS_ON_POWER_DOMAINS,
+ .is_enabled = hsw_power_well_enabled,
+ .set = hsw_set_power_well,
+ },
+};
+
+#define set_power_wells(power_domains, __power_wells) ({ \
+ (power_domains)->power_wells = (__power_wells); \
+ (power_domains)->power_well_count = ARRAY_SIZE(__power_wells); \
+})
+
int intel_power_domains_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_power_domains *power_domains = &dev_priv->power_domains;
- struct i915_power_well *power_well;
mutex_init(&power_domains->lock);
- hsw_pwr = power_domains;
- power_well = &power_domains->power_wells[0];
- power_well->count = 0;
+ /*
+ * The enabling order will be from lower to higher indexed wells,
+ * the disabling order is reversed.
+ */
+ if (IS_HASWELL(dev)) {
+ set_power_wells(power_domains, hsw_power_wells);
+ hsw_pwr = power_domains;
+ } else if (IS_BROADWELL(dev)) {
+ set_power_wells(power_domains, bdw_power_wells);
+ hsw_pwr = power_domains;
+ } else {
+ set_power_wells(power_domains, i9xx_always_on_power_well);
+ }
return 0;
}
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *power_well;
-
- if (!HAS_POWER_WELL(dev))
- return;
+ int i;
mutex_lock(&power_domains->lock);
-
- power_well = &power_domains->power_wells[0];
- __intel_set_power_well(dev, power_well->count > 0);
-
+ for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) {
+ if (power_well->set)
+ power_well->set(dev, power_well, power_well->count > 0);
+ }
mutex_unlock(&power_domains->lock);
}
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (!HAS_POWER_WELL(dev))
- return;
-
/* For now, we need the power well to be always enabled. */
intel_display_set_init_power(dev, true);
intel_power_domains_resume(dev);
+ if (!(IS_HASWELL(dev) || IS_BROADWELL(dev)))
+ return;
+
/* We're taking over the BIOS, so clear any requests made by it since
* the driver is in charge now. */
if (I915_READ(HSW_PWR_WELL_BIOS) & HSW_PWR_WELL_ENABLE_REQUEST)
hsw_enable_package_c8(dev_priv);
}
+void intel_runtime_pm_get(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct device *device = &dev->pdev->dev;
+
+ if (!HAS_RUNTIME_PM(dev))
+ return;
+
+ pm_runtime_get_sync(device);
+ WARN(dev_priv->pm.suspended, "Device still suspended.\n");
+}
+
+void intel_runtime_pm_put(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct device *device = &dev->pdev->dev;
+
+ if (!HAS_RUNTIME_PM(dev))
+ return;
+
+ pm_runtime_mark_last_busy(device);
+ pm_runtime_put_autosuspend(device);
+}
+
+void intel_init_runtime_pm(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct device *device = &dev->pdev->dev;
+
+ dev_priv->pm.suspended = false;
+
+ if (!HAS_RUNTIME_PM(dev))
+ return;
+
+ pm_runtime_set_active(device);
+
+ pm_runtime_set_autosuspend_delay(device, 10000); /* 10s */
+ pm_runtime_mark_last_busy(device);
+ pm_runtime_use_autosuspend(device);
+}
+
+void intel_fini_runtime_pm(struct drm_i915_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct device *device = &dev->pdev->dev;
+
+ if (!HAS_RUNTIME_PM(dev))
+ return;
+
+ /* Make sure we're not suspended first. */
+ pm_runtime_get_sync(device);
+ pm_runtime_disable(device);
+}
+
/* Set up chip specific power management-related functions */
void intel_init_pm(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (I915_HAS_FBC(dev)) {
- if (HAS_PCH_SPLIT(dev)) {
+ if (HAS_FBC(dev)) {
+ if (INTEL_INFO(dev)->gen >= 7) {
dev_priv->display.fbc_enabled = ironlake_fbc_enabled;
- if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
- dev_priv->display.enable_fbc =
- gen7_enable_fbc;
- else
- dev_priv->display.enable_fbc =
- ironlake_enable_fbc;
+ dev_priv->display.enable_fbc = gen7_enable_fbc;
+ dev_priv->display.disable_fbc = ironlake_disable_fbc;
+ } else if (INTEL_INFO(dev)->gen >= 5) {
+ dev_priv->display.fbc_enabled = ironlake_fbc_enabled;
+ dev_priv->display.enable_fbc = ironlake_enable_fbc;
dev_priv->display.disable_fbc = ironlake_disable_fbc;
} else if (IS_GM45(dev)) {
dev_priv->display.fbc_enabled = g4x_fbc_enabled;
dev_priv->display.enable_fbc = g4x_enable_fbc;
dev_priv->display.disable_fbc = g4x_disable_fbc;
- } else if (IS_CRESTLINE(dev)) {
+ } else {
dev_priv->display.fbc_enabled = i8xx_fbc_enabled;
dev_priv->display.enable_fbc = i8xx_enable_fbc;
dev_priv->display.disable_fbc = i8xx_disable_fbc;
+
+ /* This value was pulled out of someone's hat */
+ I915_WRITE(FBC_CONTROL, 500 << FBC_CTL_INTERVAL_SHIFT);
}
- /* 855GM needs testing */
}
/* For cxsr */
if (HAS_PCH_SPLIT(dev)) {
intel_setup_wm_latency(dev);
- if (IS_GEN5(dev)) {
- if (dev_priv->wm.pri_latency[1] &&
- dev_priv->wm.spr_latency[1] &&
- dev_priv->wm.cur_latency[1])
- dev_priv->display.update_wm = ironlake_update_wm;
- else {
- DRM_DEBUG_KMS("Failed to get proper latency. "
- "Disable CxSR\n");
- dev_priv->display.update_wm = NULL;
- }
+ if ((IS_GEN5(dev) && dev_priv->wm.pri_latency[1] &&
+ dev_priv->wm.spr_latency[1] && dev_priv->wm.cur_latency[1]) ||
+ (!IS_GEN5(dev) && dev_priv->wm.pri_latency[0] &&
+ dev_priv->wm.spr_latency[0] && dev_priv->wm.cur_latency[0])) {
+ dev_priv->display.update_wm = ilk_update_wm;
+ dev_priv->display.update_sprite_wm = ilk_update_sprite_wm;
+ } else {
+ DRM_DEBUG_KMS("Failed to read display plane latency. "
+ "Disable CxSR\n");
+ }
+
+ if (IS_GEN5(dev))
dev_priv->display.init_clock_gating = ironlake_init_clock_gating;
- } else if (IS_GEN6(dev)) {
- if (dev_priv->wm.pri_latency[0] &&
- dev_priv->wm.spr_latency[0] &&
- dev_priv->wm.cur_latency[0]) {
- 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");
- dev_priv->display.update_wm = NULL;
- }
+ else if (IS_GEN6(dev))
dev_priv->display.init_clock_gating = gen6_init_clock_gating;
- } else if (IS_IVYBRIDGE(dev)) {
- if (dev_priv->wm.pri_latency[0] &&
- dev_priv->wm.spr_latency[0] &&
- dev_priv->wm.cur_latency[0]) {
- dev_priv->display.update_wm = ivybridge_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");
- dev_priv->display.update_wm = NULL;
- }
+ else if (IS_IVYBRIDGE(dev))
dev_priv->display.init_clock_gating = ivybridge_init_clock_gating;
- } else if (IS_HASWELL(dev)) {
- if (dev_priv->wm.pri_latency[0] &&
- dev_priv->wm.spr_latency[0] &&
- dev_priv->wm.cur_latency[0]) {
- dev_priv->display.update_wm = haswell_update_wm;
- dev_priv->display.update_sprite_wm =
- haswell_update_sprite_wm;
- } else {
- DRM_DEBUG_KMS("Failed to read display plane latency. "
- "Disable CxSR\n");
- dev_priv->display.update_wm = NULL;
- }
+ else if (IS_HASWELL(dev))
dev_priv->display.init_clock_gating = haswell_init_clock_gating;
- } else if (INTEL_INFO(dev)->gen == 8) {
+ else if (INTEL_INFO(dev)->gen == 8)
dev_priv->display.init_clock_gating = gen8_init_clock_gating;
- } else
- dev_priv->display.update_wm = NULL;
} else if (IS_VALLEYVIEW(dev)) {
dev_priv->display.update_wm = valleyview_update_wm;
dev_priv->display.init_clock_gating =
dev_priv->display.update_wm = i9xx_update_wm;
dev_priv->display.get_fifo_size = i9xx_get_fifo_size;
dev_priv->display.init_clock_gating = gen3_init_clock_gating;
- } else if (IS_I865G(dev)) {
- dev_priv->display.update_wm = i830_update_wm;
- dev_priv->display.init_clock_gating = i85x_init_clock_gating;
- dev_priv->display.get_fifo_size = i830_get_fifo_size;
- } else if (IS_I85X(dev)) {
- dev_priv->display.update_wm = i9xx_update_wm;
- dev_priv->display.get_fifo_size = i85x_get_fifo_size;
- dev_priv->display.init_clock_gating = i85x_init_clock_gating;
- } else {
- dev_priv->display.update_wm = i830_update_wm;
- dev_priv->display.init_clock_gating = i830_init_clock_gating;
- if (IS_845G(dev))
+ } else if (IS_GEN2(dev)) {
+ if (INTEL_INFO(dev)->num_pipes == 1) {
+ dev_priv->display.update_wm = i845_update_wm;
dev_priv->display.get_fifo_size = i845_get_fifo_size;
- else
+ } else {
+ dev_priv->display.update_wm = i9xx_update_wm;
dev_priv->display.get_fifo_size = i830_get_fifo_size;
+ }
+
+ if (IS_I85X(dev) || IS_I865G(dev))
+ dev_priv->display.init_clock_gating = i85x_init_clock_gating;
+ else
+ dev_priv->display.init_clock_gating = i830_init_clock_gating;
+ } else {
+ DRM_ERROR("unexpected fall-through in intel_init_pm\n");
}
}
return 0;
}
-int vlv_gpu_freq(int ddr_freq, int val)
+int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val)
{
- int mult, base;
+ int div;
- switch (ddr_freq) {
+ /* 4 x czclk */
+ switch (dev_priv->mem_freq) {
case 800:
- mult = 20;
- base = 120;
+ div = 10;
break;
case 1066:
- mult = 22;
- base = 133;
+ div = 12;
break;
case 1333:
- mult = 21;
- base = 125;
+ div = 16;
break;
default:
return -1;
}
- return ((val - 0xbd) * mult) + base;
+ return DIV_ROUND_CLOSEST(dev_priv->mem_freq * (val + 6 - 0xbd), 4 * div);
}
-int vlv_freq_opcode(int ddr_freq, int val)
+int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val)
{
- int mult, base;
+ int mul;
- switch (ddr_freq) {
+ /* 4 x czclk */
+ switch (dev_priv->mem_freq) {
case 800:
- mult = 20;
- base = 120;
+ mul = 10;
break;
case 1066:
- mult = 22;
- base = 133;
+ mul = 12;
break;
case 1333:
- mult = 21;
- base = 125;
+ mul = 16;
break;
default:
return -1;
}
- val /= mult;
- val -= base / mult;
- val += 0xbd;
-
- if (val > 0xea)
- val = 0xea;
-
- return val;
+ return DIV_ROUND_CLOSEST(4 * mul * val, dev_priv->mem_freq) + 0xbd - 6;
}
void intel_pm_setup(struct drm_device *dev)
projects / ~andy / linux / blobdiff