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drm/i915/skl+: Use plane size for relative data rate calculation

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Use plane size for relative data rate calculation. don't always use
pipe source width & height.
adjust height & width according to rotation.
use plane size for watermark calculations also.

v2: Address Matt's comments.
    Use intel_plane_state->visible to avoid divide-by-zero error.
    Where FB was present but not visible so causing total data rate to
    be zero, hence divide-by-zero.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93917
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94044
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Kumar, Mahesh <mahesh1.kumar@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459956399-1296-1-git-send-email-matthew.d.roper@intel.com
(cherry picked from commit a280f7dd9f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Kumar, Mahesh 2016-04-06 08:26:39 -07:00 committed by Jani Nikula
parent c3b46c7326
commit 9aec6a08f1
1 changed files with 28 additions and 14 deletions
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42
drivers/gpu/drm/i915/intel_pm.c
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@ -2876,25 +2876,28 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate,
const struct drm_plane_state *pstate,
int y)
{
struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc);
struct intel_plane_state *intel_pstate = to_intel_plane_state(pstate);
struct drm_framebuffer *fb = pstate->fb;
uint32_t width = 0, height = 0;
width = drm_rect_width(&intel_pstate->src) >> 16;
height = drm_rect_height(&intel_pstate->src) >> 16;
if (intel_rotation_90_or_270(pstate->rotation))
swap(width, height);
/* for planar format */
if (fb->pixel_format == DRM_FORMAT_NV12) {
if (y) /* y-plane data rate */
return intel_crtc->config->pipe_src_w *
intel_crtc->config->pipe_src_h *
return width * height *
drm_format_plane_cpp(fb->pixel_format, 0);
else /* uv-plane data rate */
return (intel_crtc->config->pipe_src_w/2) *
(intel_crtc->config->pipe_src_h/2) *
return (width / 2) * (height / 2) *
drm_format_plane_cpp(fb->pixel_format, 1);
}
/* for packed formats */
return intel_crtc->config->pipe_src_w *
intel_crtc->config->pipe_src_h *
drm_format_plane_cpp(fb->pixel_format, 0);
return width * height * drm_format_plane_cpp(fb->pixel_format, 0);
}
/*
@ -2973,8 +2976,9 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
struct drm_framebuffer *fb = plane->state->fb;
int id = skl_wm_plane_id(intel_plane);
if (fb == NULL)
if (!to_intel_plane_state(plane->state)->visible)
continue;
if (plane->type == DRM_PLANE_TYPE_CURSOR)
continue;
@ -3000,7 +3004,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
uint16_t plane_blocks, y_plane_blocks = 0;
int id = skl_wm_plane_id(intel_plane);
if (pstate->fb == NULL)
if (!to_intel_plane_state(pstate)->visible)
continue;
if (plane->type == DRM_PLANE_TYPE_CURSOR)
continue;
@ -3123,26 +3127,36 @@ static bool skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
{
struct drm_plane *plane = &intel_plane->base;
struct drm_framebuffer *fb = plane->state->fb;
struct intel_plane_state *intel_pstate =
to_intel_plane_state(plane->state);
uint32_t latency = dev_priv->wm.skl_latency[level];
uint32_t method1, method2;
uint32_t plane_bytes_per_line, plane_blocks_per_line;
uint32_t res_blocks, res_lines;
uint32_t selected_result;
uint8_t cpp;
uint32_t width = 0, height = 0;
if (latency == 0 || !cstate->base.active || !fb)
if (latency == 0 || !cstate->base.active || !intel_pstate->visible)
return false;
width = drm_rect_width(&intel_pstate->src) >> 16;
height = drm_rect_height(&intel_pstate->src) >> 16;
if (intel_rotation_90_or_270(plane->state->rotation))
swap(width, height);
cpp = drm_format_plane_cpp(fb->pixel_format, 0);
method1 = skl_wm_method1(skl_pipe_pixel_rate(cstate),
cpp, latency);
method2 = skl_wm_method2(skl_pipe_pixel_rate(cstate),
cstate->base.adjusted_mode.crtc_htotal,
cstate->pipe_src_w,
cpp, fb->modifier[0],
width,
cpp,
fb->modifier[0],
latency);
plane_bytes_per_line = cstate->pipe_src_w * cpp;
plane_bytes_per_line = width * cpp;
plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512);
if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||