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drm/i915: Include "ignore lines" in skl+ wm state

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We'll need to poke at the "ignore lines" bit in the skl+
watermark registers for a w/a. Include that bit in the wm
state.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190213165424.22904-2-ville.syrjala@linux.intel.com
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
This commit is contained in:
Ville Syrjälä 2019-02-13 18:54:23 +02:00
parent bfe0cd2851
commit 2ed8e1f560
3 changed files with 30 additions and 16 deletions
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1
drivers/gpu/drm/i915/i915_drv.h
View file

@ -1126,6 +1126,7 @@ struct skl_wm_level {
u16 plane_res_b;
u8 plane_res_l;
bool plane_en;
bool ignore_lines;
};
/* Stores plane specific WM parameters */

1
drivers/gpu/drm/i915/i915_reg.h
View file

@ -6032,6 +6032,7 @@ enum {
#define _CUR_WM_TRANS_A_0 0x70168
#define _CUR_WM_TRANS_B_0 0x71168
#define PLANE_WM_EN (1 << 31)
#define PLANE_WM_IGNORE_LINES (1 << 30)
#define PLANE_WM_LINES_SHIFT 14
#define PLANE_WM_LINES_MASK 0x1f
#define PLANE_WM_BLOCKS_MASK 0x7ff /* skl+: 10 bits, icl+ 11 bits */

44
drivers/gpu/drm/i915/intel_pm.c
View file

@ -5053,11 +5053,12 @@ static void skl_write_wm_level(struct drm_i915_private *dev_priv,
{
u32 val = 0;
if (level->plane_en) {
if (level->plane_en)
val |= PLANE_WM_EN;
val |= level->plane_res_b;
val |= level->plane_res_l << PLANE_WM_LINES_SHIFT;
}
if (level->ignore_lines)
val |= PLANE_WM_IGNORE_LINES;
val |= level->plane_res_b;
val |= level->plane_res_l << PLANE_WM_LINES_SHIFT;
I915_WRITE_FW(reg, val);
}
@ -5123,6 +5124,7 @@ bool skl_wm_level_equals(const struct skl_wm_level *l1,
const struct skl_wm_level *l2)
{
return l1->plane_en == l2->plane_en &&
l1->ignore_lines == l2->ignore_lines &&
l1->plane_res_l == l2->plane_res_l &&
l1->plane_res_b == l2->plane_res_b;
}
@ -5331,19 +5333,28 @@ skl_print_wm_changes(struct intel_atomic_state *state)
enast(new_wm->wm[6].plane_en), enast(new_wm->wm[7].plane_en),
enast(new_wm->trans_wm.plane_en));
DRM_DEBUG_KMS("[PLANE:%d:%s] lines %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
" -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
DRM_DEBUG_KMS("[PLANE:%d:%s] lines %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d"
" -> %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d\n",
plane->base.base.id, plane->base.name,
old_wm->wm[0].plane_res_l, old_wm->wm[1].plane_res_l,
old_wm->wm[2].plane_res_l, old_wm->wm[3].plane_res_l,
old_wm->wm[4].plane_res_l, old_wm->wm[5].plane_res_l,
old_wm->wm[6].plane_res_l, old_wm->wm[7].plane_res_l,
old_wm->trans_wm.plane_res_l,
new_wm->wm[0].plane_res_l, new_wm->wm[1].plane_res_l,
new_wm->wm[2].plane_res_l, new_wm->wm[3].plane_res_l,
new_wm->wm[4].plane_res_l, new_wm->wm[5].plane_res_l,
new_wm->wm[6].plane_res_l, new_wm->wm[7].plane_res_l,
new_wm->trans_wm.plane_res_l);
enast(old_wm->wm[0].ignore_lines), old_wm->wm[0].plane_res_l,
enast(old_wm->wm[1].ignore_lines), old_wm->wm[1].plane_res_l,
enast(old_wm->wm[2].ignore_lines), old_wm->wm[2].plane_res_l,
enast(old_wm->wm[3].ignore_lines), old_wm->wm[3].plane_res_l,
enast(old_wm->wm[4].ignore_lines), old_wm->wm[4].plane_res_l,
enast(old_wm->wm[5].ignore_lines), old_wm->wm[5].plane_res_l,
enast(old_wm->wm[6].ignore_lines), old_wm->wm[6].plane_res_l,
enast(old_wm->wm[7].ignore_lines), old_wm->wm[7].plane_res_l,
enast(old_wm->trans_wm.ignore_lines), old_wm->trans_wm.plane_res_l,
enast(new_wm->wm[0].ignore_lines), new_wm->wm[0].plane_res_l,
enast(new_wm->wm[1].ignore_lines), new_wm->wm[1].plane_res_l,
enast(new_wm->wm[2].ignore_lines), new_wm->wm[2].plane_res_l,
enast(new_wm->wm[3].ignore_lines), new_wm->wm[3].plane_res_l,
enast(new_wm->wm[4].ignore_lines), new_wm->wm[4].plane_res_l,
enast(new_wm->wm[5].ignore_lines), new_wm->wm[5].plane_res_l,
enast(new_wm->wm[6].ignore_lines), new_wm->wm[6].plane_res_l,
enast(new_wm->wm[7].ignore_lines), new_wm->wm[7].plane_res_l,
enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.plane_res_l);
DRM_DEBUG_KMS("[PLANE:%d:%s] blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d"
" -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n",
@ -5686,6 +5697,7 @@ static inline void skl_wm_level_from_reg_val(u32 val,
struct skl_wm_level *level)
{
level->plane_en = val & PLANE_WM_EN;
level->ignore_lines = val & PLANE_WM_IGNORE_LINES;
level->plane_res_b = val & PLANE_WM_BLOCKS_MASK;
level->plane_res_l = (val >> PLANE_WM_LINES_SHIFT) &
PLANE_WM_LINES_MASK;