* [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit
@ 2024-09-17 17:41 Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
` (5 more replies)
0 siblings, 6 replies; 15+ messages in thread
From: Ankit Nautiyal @ 2024-09-17 17:41 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula
For Platforms that support higher link rates, there is a limitation on
Link M /Link N ratio.
If the CEILING( Link M / Link N ) ratio is greater than 10.0, then
hardware cannot support the given resolution / refresh rate at the given
configuration.
For BMG Wa_14021768792 helps to bypass this limitation and allows it to
support the ratio till 15.0.
This series adds the missing restrictions for earlier platforms and adds
the Wa_14021768792 for BMG as per Bspec:49266
Rev2:
-Drop new member link_n_extended.
-Avoid WA framework for XE
Ankit Nautiyal (4):
Add bits for link_n_exended for DISPLAY >= 14
drm/i915/display: Limit m/n ratio to 10 for display > 12
drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10
drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n
ratio > 10
drivers/gpu/drm/i915/display/intel_display.c | 147 ++++++++++++++++--
drivers/gpu/drm/i915/display/intel_display.h | 15 +-
.../drm/i915/display/intel_display_types.h | 2 +
drivers/gpu/drm/i915/display/intel_dp.c | 62 ++++++--
drivers/gpu/drm/i915/display/intel_dp.h | 5 +
drivers/gpu/drm/i915/display/intel_dp_mst.c | 37 +++--
drivers/gpu/drm/i915/display/intel_fdi.c | 15 +-
.../gpu/drm/i915/display/intel_pch_display.c | 4 +-
drivers/gpu/drm/i915/i915_reg.h | 7 +
9 files changed, 243 insertions(+), 51 deletions(-)
--
2.45.2
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
@ 2024-09-17 17:41 ` Ankit Nautiyal
2024-09-17 17:46 ` Jani Nikula
2024-09-17 17:41 ` [PATCH 2/4] drm/i915/display: Limit m/n ratio to 10 for display > 12 Ankit Nautiyal
` (4 subsequent siblings)
5 siblings, 1 reply; 15+ messages in thread
From: Ankit Nautiyal @ 2024-09-17 17:41 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula
LINK_N register has bits 31:24 for extended link N value used for
HDMI2.1 and for an alternate mode of operation of DP TG DDA
(Bspec:50488).
Add support for these extra bits.
v2: Drop extra link_n_ext member. (Jani)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 21 ++++++++++++++-----
drivers/gpu/drm/i915/display/intel_display.h | 2 +-
.../gpu/drm/i915/display/intel_pch_display.c | 4 ++--
drivers/gpu/drm/i915/i915_reg.h | 2 ++
4 files changed, 21 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 426074afef43..4b1bb1f43adb 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2633,9 +2633,12 @@ void intel_zero_m_n(struct intel_link_m_n *m_n)
void intel_set_m_n(struct drm_i915_private *i915,
const struct intel_link_m_n *m_n,
+ u8 link_n_ext,
i915_reg_t data_m_reg, i915_reg_t data_n_reg,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
+ u8 link_n = m_n->link_n;
+
intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
intel_de_write(i915, data_n_reg, m_n->data_n);
intel_de_write(i915, link_m_reg, m_n->link_m);
@@ -2643,7 +2646,11 @@ void intel_set_m_n(struct drm_i915_private *i915,
* On BDW+ writing LINK_N arms the double buffered update
* of all the M/N registers, so it must be written last.
*/
- intel_de_write(i915, link_n_reg, m_n->link_n);
+
+ if (DISPLAY_VER(i915) >= 14 && link_n_ext)
+ link_n |= PIPE_LINK_N1_EXTENDED(link_n_ext);
+
+ intel_de_write(i915, link_n_reg, link_n);
}
bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
@@ -2663,13 +2670,13 @@ void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
enum pipe pipe = crtc->pipe;
if (DISPLAY_VER(dev_priv) >= 5)
- intel_set_m_n(dev_priv, m_n,
+ intel_set_m_n(dev_priv, m_n, 0,
PIPE_DATA_M1(dev_priv, transcoder),
PIPE_DATA_N1(dev_priv, transcoder),
PIPE_LINK_M1(dev_priv, transcoder),
PIPE_LINK_N1(dev_priv, transcoder));
else
- intel_set_m_n(dev_priv, m_n,
+ intel_set_m_n(dev_priv, m_n, 0,
PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
}
@@ -2683,7 +2690,7 @@ void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder))
return;
- intel_set_m_n(dev_priv, m_n,
+ intel_set_m_n(dev_priv, m_n, 0,
PIPE_DATA_M2(dev_priv, transcoder),
PIPE_DATA_N2(dev_priv, transcoder),
PIPE_LINK_M2(dev_priv, transcoder),
@@ -3351,7 +3358,11 @@ void intel_get_m_n(struct drm_i915_private *i915,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
m_n->link_m = intel_de_read(i915, link_m_reg) & DATA_LINK_M_N_MASK;
- m_n->link_n = intel_de_read(i915, link_n_reg) & DATA_LINK_M_N_MASK;
+ m_n->link_n = intel_de_read(i915, link_n_reg);
+
+ if (DISPLAY_VER(i915) < 14)
+ m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
+
m_n->data_m = intel_de_read(i915, data_m_reg) & DATA_LINK_M_N_MASK;
m_n->data_n = intel_de_read(i915, data_n_reg) & DATA_LINK_M_N_MASK;
m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1;
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 4bdb48084cab..3b12d7f7c6c3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -473,7 +473,7 @@ bool intel_fuzzy_clock_check(int clock1, int clock2);
void intel_zero_m_n(struct intel_link_m_n *m_n);
void intel_set_m_n(struct drm_i915_private *i915,
- const struct intel_link_m_n *m_n,
+ const struct intel_link_m_n *m_n, u8 link_n_ext,
i915_reg_t data_m_reg, i915_reg_t data_n_reg,
i915_reg_t link_m_reg, i915_reg_t link_n_reg);
void intel_get_m_n(struct drm_i915_private *i915,
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c
index f13ab680c2cf..74bc4de6d123 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
@@ -178,7 +178,7 @@ static void intel_pch_transcoder_set_m1_n1(struct intel_crtc *crtc,
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
- intel_set_m_n(dev_priv, m_n,
+ intel_set_m_n(dev_priv, m_n, 0,
PCH_TRANS_DATA_M1(pipe), PCH_TRANS_DATA_N1(pipe),
PCH_TRANS_LINK_M1(pipe), PCH_TRANS_LINK_N1(pipe));
}
@@ -189,7 +189,7 @@ static void intel_pch_transcoder_set_m2_n2(struct intel_crtc *crtc,
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
- intel_set_m_n(dev_priv, m_n,
+ intel_set_m_n(dev_priv, m_n, 0,
PCH_TRANS_DATA_M2(pipe), PCH_TRANS_DATA_N2(pipe),
PCH_TRANS_LINK_M2(pipe), PCH_TRANS_LINK_N2(pipe));
}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7396fc630e29..a770b5dbf5e4 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2158,6 +2158,8 @@
#define _PIPEA_LINK_N1 0x60044
#define _PIPEB_LINK_N1 0x61044
+#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
+#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
#define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
#define _PIPEA_LINK_M2 0x60048
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 2/4] drm/i915/display: Limit m/n ratio to 10 for display > 12
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
@ 2024-09-17 17:41 ` Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 3/4] drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10 Ankit Nautiyal
` (3 subsequent siblings)
5 siblings, 0 replies; 15+ messages in thread
From: Ankit Nautiyal @ 2024-09-17 17:41 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula
As per Bspec:49266 for DISPLAY > 12 which support higher
link rates have a limitation:
If the CEILING( Link M / Link N ) ratio is greater than 10.0, then
hardware cannot support the given resolution / refresh rate at the given
configuration.
Modify the helper to compute m_n, to check for the max link_m/n ratio
for the given platforms, and return error code in case the
resolution/refresh rate is not supported.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 29 ++++++++++++++-
drivers/gpu/drm/i915/display/intel_display.h | 9 +++--
drivers/gpu/drm/i915/display/intel_dp.c | 39 +++++++++++++-------
drivers/gpu/drm/i915/display/intel_dp_mst.c | 34 ++++++++++-------
drivers/gpu/drm/i915/display/intel_fdi.c | 15 ++++----
5 files changed, 86 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 4b1bb1f43adb..57a438d8ecfc 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2573,8 +2573,15 @@ static void compute_m_n(u32 *ret_m, u32 *ret_n,
intel_reduce_m_n_ratio(ret_m, ret_n);
}
-void
-intel_link_compute_m_n(u16 bits_per_pixel_x16, int nlanes,
+static int
+get_max_link_m_n_ratio(void)
+{
+ return 10;
+}
+
+int
+intel_link_compute_m_n(struct intel_display *display,
+ u16 bits_per_pixel_x16, int nlanes,
int pixel_clock, int link_clock,
int bw_overhead,
struct intel_link_m_n *m_n)
@@ -2583,6 +2590,7 @@ intel_link_compute_m_n(u16 bits_per_pixel_x16, int nlanes,
u32 data_m = intel_dp_effective_data_rate(pixel_clock, bits_per_pixel_x16,
bw_overhead);
u32 data_n = drm_dp_max_dprx_data_rate(link_clock, nlanes);
+ int link_m_n_ratio, max_link_m_n_ratio;
/*
* Windows/BIOS uses fixed M/N values always. Follow suit.
@@ -2599,6 +2607,23 @@ intel_link_compute_m_n(u16 bits_per_pixel_x16, int nlanes,
compute_m_n(&m_n->link_m, &m_n->link_n,
pixel_clock, link_symbol_clock,
0x80000);
+
+ if (DISPLAY_VER(display) < 12)
+ return 0;
+
+ /* Check for Link M/N ratio for Display >= 12 */
+ max_link_m_n_ratio = get_max_link_m_n_ratio();
+
+ link_m_n_ratio = DIV_ROUND_UP(m_n->link_m, m_n->link_m);
+
+ if (link_m_n_ratio > max_link_m_n_ratio) {
+ drm_dbg_kms(display->drm,
+ "Cannot support Link_m/Link_n ratio : %d > max_link_m_n_ratio\n",
+ link_m_n_ratio);
+ return -EINVAL;
+ }
+
+ return 0;
}
void intel_panel_sanitize_ssc(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 3b12d7f7c6c3..a8214787b115 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -397,10 +397,11 @@ int intel_atomic_add_affected_planes(struct intel_atomic_state *state,
struct intel_crtc *crtc);
u8 intel_calc_active_pipes(struct intel_atomic_state *state,
u8 active_pipes);
-void intel_link_compute_m_n(u16 bpp, int nlanes,
- int pixel_clock, int link_clock,
- int bw_overhead,
- struct intel_link_m_n *m_n);
+int intel_link_compute_m_n(struct intel_display *display,
+ u16 bpp, int nlanes,
+ int pixel_clock, int link_clock,
+ int bw_overhead,
+ struct intel_link_m_n *m_n);
u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv,
u32 pixel_format, u64 modifier);
enum drm_mode_status
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index dd281eb7c4bf..211d37353d99 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2861,15 +2861,17 @@ static bool can_enable_drrs(struct intel_connector *connector,
intel_panel_drrs_type(connector) == DRRS_TYPE_SEAMLESS;
}
-static void
+static int
intel_dp_drrs_compute_config(struct intel_connector *connector,
struct intel_crtc_state *pipe_config,
int link_bpp_x16)
{
struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
const struct drm_display_mode *downclock_mode =
intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode);
int pixel_clock;
+ int ret;
/*
* FIXME all joined pipes share the same transcoder.
@@ -2881,7 +2883,7 @@ intel_dp_drrs_compute_config(struct intel_connector *connector,
if (!can_enable_drrs(connector, pipe_config, downclock_mode)) {
if (intel_cpu_transcoder_has_m2_n2(i915, pipe_config->cpu_transcoder))
intel_zero_m_n(&pipe_config->dp_m2_n2);
- return;
+ return 0;
}
if (IS_IRONLAKE(i915) || IS_SANDYBRIDGE(i915) || IS_IVYBRIDGE(i915))
@@ -2893,14 +2895,18 @@ intel_dp_drrs_compute_config(struct intel_connector *connector,
if (pipe_config->splitter.enable)
pixel_clock /= pipe_config->splitter.link_count;
- intel_link_compute_m_n(link_bpp_x16, pipe_config->lane_count, pixel_clock,
- pipe_config->port_clock,
- intel_dp_bw_fec_overhead(pipe_config->fec_enable),
- &pipe_config->dp_m2_n2);
+ ret = intel_link_compute_m_n(display, link_bpp_x16, pipe_config->lane_count, pixel_clock,
+ pipe_config->port_clock,
+ intel_dp_bw_fec_overhead(pipe_config->fec_enable),
+ &pipe_config->dp_m2_n2);
+ if (ret)
+ return ret;
/* FIXME: abstract this better */
if (pipe_config->splitter.enable)
pipe_config->dp_m2_n2.data_m *= pipe_config->splitter.link_count;
+
+ return 0;
}
static bool intel_dp_has_audio(struct intel_encoder *encoder,
@@ -3023,6 +3029,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
struct drm_connector_state *conn_state)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ struct intel_display *display = to_intel_display(encoder);
struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
@@ -3104,12 +3111,14 @@ intel_dp_compute_config(struct intel_encoder *encoder,
intel_dp_audio_compute_config(encoder, pipe_config, conn_state);
- intel_link_compute_m_n(link_bpp_x16,
- pipe_config->lane_count,
- adjusted_mode->crtc_clock,
- pipe_config->port_clock,
- intel_dp_bw_fec_overhead(pipe_config->fec_enable),
- &pipe_config->dp_m_n);
+ ret = intel_link_compute_m_n(display, link_bpp_x16,
+ pipe_config->lane_count,
+ adjusted_mode->crtc_clock,
+ pipe_config->port_clock,
+ intel_dp_bw_fec_overhead(pipe_config->fec_enable),
+ &pipe_config->dp_m_n);
+ if (ret)
+ return ret;
/* FIXME: abstract this better */
if (pipe_config->splitter.enable)
@@ -3122,7 +3131,11 @@ intel_dp_compute_config(struct intel_encoder *encoder,
intel_dp_compute_as_sdp(intel_dp, pipe_config);
intel_psr_compute_config(intel_dp, pipe_config, conn_state);
intel_alpm_lobf_compute_config(intel_dp, pipe_config, conn_state);
- intel_dp_drrs_compute_config(connector, pipe_config, link_bpp_x16);
+
+ ret = intel_dp_drrs_compute_config(connector, pipe_config, link_bpp_x16);
+ if (ret)
+ return ret;
+
intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state);
intel_dp_compute_hdr_metadata_infoframe_sdp(intel_dp, pipe_config, conn_state);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 15541932b809..317eb04bd8c6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -122,23 +122,28 @@ static int intel_dp_mst_bw_overhead(const struct intel_crtc_state *crtc_state,
return max(overhead, intel_dp_bw_fec_overhead(crtc_state->fec_enable));
}
-static void intel_dp_mst_compute_m_n(const struct intel_crtc_state *crtc_state,
- const struct intel_connector *connector,
- int overhead,
- int bpp_x16,
- struct intel_link_m_n *m_n)
+static int intel_dp_mst_compute_m_n(const struct intel_crtc_state *crtc_state,
+ const struct intel_connector *connector,
+ int overhead,
+ int bpp_x16,
+ struct intel_link_m_n *m_n)
{
const struct drm_display_mode *adjusted_mode =
&crtc_state->hw.adjusted_mode;
+ struct intel_display *display = to_intel_display(connector);
+ int ret;
/* TODO: Check WA 14013163432 to set data M/N for full BW utilization. */
- intel_link_compute_m_n(bpp_x16, crtc_state->lane_count,
- adjusted_mode->crtc_clock,
- crtc_state->port_clock,
- overhead,
- m_n);
+ ret = intel_link_compute_m_n(display, bpp_x16, crtc_state->lane_count,
+ adjusted_mode->crtc_clock,
+ crtc_state->port_clock,
+ overhead, m_n);
+ if (ret)
+ return ret;
m_n->tu = DIV_ROUND_UP_ULL(mul_u32_u32(m_n->data_m, 64), m_n->data_n);
+
+ return ret;
}
static int intel_dp_mst_calc_pbn(int pixel_clock, int bpp_x16, int bw_overhead)
@@ -220,10 +225,11 @@ static int intel_dp_mst_find_vcpi_slots_for_bpp(struct intel_encoder *encoder,
remote_bw_overhead = intel_dp_mst_bw_overhead(crtc_state, connector,
true, dsc, link_bpp_x16);
- intel_dp_mst_compute_m_n(crtc_state, connector,
- local_bw_overhead,
- link_bpp_x16,
- &crtc_state->dp_m_n);
+ if (!intel_dp_mst_compute_m_n(crtc_state, connector,
+ local_bw_overhead,
+ link_bpp_x16,
+ &crtc_state->dp_m_n))
+ continue;
/*
* The TU size programmed to the HW determines which slots in
diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c
index 0168894e9cd1..0b39773a4a85 100644
--- a/drivers/gpu/drm/i915/display/intel_fdi.c
+++ b/drivers/gpu/drm/i915/display/intel_fdi.c
@@ -325,8 +325,9 @@ int ilk_fdi_compute_config(struct intel_crtc *crtc,
{
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *i915 = to_i915(dev);
+ struct intel_display *display = to_intel_display(pipe_config);
const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
- int lane, link_bw, fdi_dotclock;
+ int lane, link_bw, fdi_dotclock, ret;
/* FDI is a binary signal running at ~2.7GHz, encoding
* each output octet as 10 bits. The actual frequency
@@ -344,13 +345,13 @@ int ilk_fdi_compute_config(struct intel_crtc *crtc,
pipe_config->fdi_lanes = lane;
- intel_link_compute_m_n(fxp_q4_from_int(pipe_config->pipe_bpp),
- lane, fdi_dotclock,
- link_bw,
- intel_dp_bw_fec_overhead(false),
- &pipe_config->fdi_m_n);
+ ret = intel_link_compute_m_n(display, fxp_q4_from_int(pipe_config->pipe_bpp),
+ lane, fdi_dotclock,
+ link_bw,
+ intel_dp_bw_fec_overhead(false),
+ &pipe_config->fdi_m_n);
- return 0;
+ return ret;
}
static int intel_fdi_atomic_check_bw(struct intel_atomic_state *state,
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 3/4] drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 2/4] drm/i915/display: Limit m/n ratio to 10 for display > 12 Ankit Nautiyal
@ 2024-09-17 17:41 ` Ankit Nautiyal
2024-09-17 17:42 ` [PATCH 4/4] drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n " Ankit Nautiyal
` (2 subsequent siblings)
5 siblings, 0 replies; 15+ messages in thread
From: Ankit Nautiyal @ 2024-09-17 17:41 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula
To support Link M/N ratio between 10.0 and 15.0, for some BMG ultrajoiner
cases we need Wa_14021768792.
To bypass the hardware limitation within the Timing Generator DDA (TGDDA),
we need to program the LINKM and LINKN registers as defined in
the WA. Along with this we also need relvant bits in HDMI_EMP_DATA and
CHICKEN_TRANS regs.
Add the bits for the WA and a new member 'bmg_bypass_m_n_ratio_limit' to
track if we need to bypass the Link M/N ratio limit in intel_link_m_n
structure.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 102 +++++++++++++++++-
.../drm/i915/display/intel_display_types.h | 2 +
drivers/gpu/drm/i915/i915_reg.h | 5 +
3 files changed, 104 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 57a438d8ecfc..abb499de1c56 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2687,15 +2687,43 @@ bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
return IS_DISPLAY_VER(dev_priv, 5, 7) || IS_CHERRYVIEW(dev_priv);
}
+static
+void bmg_bypass_m_n_limit_write(struct intel_crtc *crtc,
+ enum transcoder transcoder,
+ const struct intel_link_m_n *m_n)
+{
+ struct intel_display *display = to_intel_display(crtc);
+ int m_n_frac = m_n->link_m % m_n->link_n;
+ enum pipe pipe = crtc->pipe;
+
+ intel_de_rmw(display, MTL_CHICKEN_TRANS(transcoder), 0, BMG_DP_BYPASS_M_N_LIMIT);
+ intel_de_write(display, HDMI_EMP_DATA(pipe), m_n_frac);
+}
+
+static
+u8 bmg_get_link_n_ext(const struct intel_link_m_n *m_n)
+{
+ int m_n_ratio, m_n_frac;
+
+ m_n_ratio = DIV_ROUND_UP(m_n->link_m, m_n->link_n);
+ m_n_frac = m_n->link_m % m_n->link_n;
+
+ return m_n_ratio + (m_n_frac > 0 ? 1 : 0);
+}
+
void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
enum transcoder transcoder,
const struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
+ u8 link_n_ext = 0;
+
+ if (m_n->bypass_m_n_ratio_limit)
+ link_n_ext = bmg_get_link_n_ext(m_n);
if (DISPLAY_VER(dev_priv) >= 5)
- intel_set_m_n(dev_priv, m_n, 0,
+ intel_set_m_n(dev_priv, m_n, link_n_ext,
PIPE_DATA_M1(dev_priv, transcoder),
PIPE_DATA_N1(dev_priv, transcoder),
PIPE_LINK_M1(dev_priv, transcoder),
@@ -2704,6 +2732,9 @@ void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
intel_set_m_n(dev_priv, m_n, 0,
PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
+
+ if (m_n->bypass_m_n_ratio_limit)
+ bmg_bypass_m_n_limit_write(crtc, transcoder, m_n);
}
void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
@@ -2711,15 +2742,22 @@ void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
const struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u8 link_n_ext = 0;
if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder))
return;
- intel_set_m_n(dev_priv, m_n, 0,
+ if (m_n->bypass_m_n_ratio_limit)
+ link_n_ext = bmg_get_link_n_ext(m_n);
+
+ intel_set_m_n(dev_priv, m_n, link_n_ext,
PIPE_DATA_M2(dev_priv, transcoder),
PIPE_DATA_N2(dev_priv, transcoder),
PIPE_LINK_M2(dev_priv, transcoder),
PIPE_LINK_N2(dev_priv, transcoder));
+
+ if (m_n->bypass_m_n_ratio_limit)
+ bmg_bypass_m_n_limit_write(crtc, transcoder, m_n);
}
static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
@@ -3393,12 +3431,51 @@ void intel_get_m_n(struct drm_i915_private *i915,
m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1;
}
+static
+void bmg_bypass_m_n_limit_read(struct intel_crtc *crtc,
+ enum transcoder transcoder,
+ struct intel_link_m_n *m_n)
+{
+ struct intel_display *display = to_intel_display(crtc);
+ enum pipe pipe = crtc->pipe;
+ u32 chicken_trans, m_n_frac;
+
+ chicken_trans = intel_de_read(display, MTL_CHICKEN_TRANS(transcoder));
+ m_n_frac = intel_de_read(display, HDMI_EMP_DATA(pipe));
+
+ if ((chicken_trans & BMG_DP_BYPASS_M_N_LIMIT) &&
+ m_n_frac == (m_n->link_m % m_n->link_n))
+ m_n->bypass_m_n_ratio_limit = true;
+}
+
+static
+int bmg_can_bypass_m_n_limit(struct intel_display *display,
+ int m_n_ratio,
+ enum pipe pipe)
+{
+ struct drm_i915_private *i915 = to_i915(display->drm);
+
+ if (DISPLAY_VER(display) != 14 || !IS_DGFX(i915) ||
+ !IS_DISPLAY_STEP(display, STEP_C0, STEP_FOREVER))
+ return false;
+
+ if (pipe != PIPE_A)
+ return false;
+
+ if (m_n_ratio > 15)
+ return false;
+
+ return true;
+}
+
void intel_cpu_transcoder_get_m1_n1(struct intel_crtc *crtc,
enum transcoder transcoder,
struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_display *display = to_intel_display(crtc);
enum pipe pipe = crtc->pipe;
+ int m_n_ratio;
if (DISPLAY_VER(dev_priv) >= 5)
intel_get_m_n(dev_priv, m_n,
@@ -3410,6 +3487,11 @@ void intel_cpu_transcoder_get_m1_n1(struct intel_crtc *crtc,
intel_get_m_n(dev_priv, m_n,
PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
+
+ m_n_ratio = DIV_ROUND_UP(m_n->link_m, m_n->link_n);
+
+ if (bmg_can_bypass_m_n_limit(display, m_n_ratio, pipe))
+ bmg_bypass_m_n_limit_read(crtc, transcoder, m_n);
}
void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
@@ -3417,6 +3499,9 @@ void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_display *display = to_intel_display(crtc);
+ enum pipe pipe = crtc->pipe;
+ int m_n_ratio;
if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder))
return;
@@ -3426,6 +3511,11 @@ void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
PIPE_DATA_N2(dev_priv, transcoder),
PIPE_LINK_M2(dev_priv, transcoder),
PIPE_LINK_N2(dev_priv, transcoder));
+
+ m_n_ratio = DIV_ROUND_UP(m_n->link_m, m_n->link_n);
+
+ if (bmg_can_bypass_m_n_limit(display, m_n_ratio, pipe))
+ bmg_bypass_m_n_limit_read(crtc, transcoder, m_n);
}
static void ilk_get_pfit_config(struct intel_crtc_state *crtc_state)
@@ -5176,18 +5266,20 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
if (!intel_compare_link_m_n(¤t_config->name, \
&pipe_config->name)) { \
pipe_config_mismatch(&p, fastset, crtc, __stringify(name), \
- "(expected tu %i data %i/%i link %i/%i, " \
- "found tu %i, data %i/%i link %i/%i)", \
+ "(expected tu %i data %i/%i link %i/%i bypass_m_n_ratio_limit %s, " \
+ "found tu %i, data %i/%i link %i/%i bypass_m_n_ratio_limit %s)", \
current_config->name.tu, \
current_config->name.data_m, \
current_config->name.data_n, \
current_config->name.link_m, \
current_config->name.link_n, \
+ str_yes_no(current_config->name.bypass_m_n_ratio_limit), \
pipe_config->name.tu, \
pipe_config->name.data_m, \
pipe_config->name.data_n, \
pipe_config->name.link_m, \
- pipe_config->name.link_n); \
+ pipe_config->name.link_n, \
+ str_yes_no(pipe_config->name.bypass_m_n_ratio_limit)); \
ret = false; \
} \
} while (0)
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 000ab373c887..e6a4bd60667b 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -901,6 +901,8 @@ struct intel_link_m_n {
u32 data_n;
u32 link_m;
u32 link_n;
+ /* Wa_14021768792 for linkm/n ratio > 10 */
+ bool bypass_m_n_ratio_limit;
};
struct intel_csc_matrix {
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a770b5dbf5e4..551ce90e1c46 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1138,6 +1138,10 @@
#define _TRANS_MULT_B 0x6102c
#define TRANS_MULT(dev_priv, trans) _MMIO_TRANS2(dev_priv, (trans), _TRANS_MULT_A)
+#define _HDMI_EMP_DATA_A 0x600d8
+#define _HDMI_EMP_DATA_B 0x610d8
+#define HDMI_EMP_DATA(pipe) _MMIO_PIPE(pipe, _HDMI_EMP_DATA_A, _HDMI_EMP_DATA_B)
+
/* VGA port control */
#define ADPA _MMIO(0x61100)
#define PCH_ADPA _MMIO(0xe1100)
@@ -2787,6 +2791,7 @@
#define PSR2_ADD_VERTICAL_LINE_COUNT REG_BIT(15)
#define DP_FEC_BS_JITTER_WA REG_BIT(15)
#define PSR2_VSC_ENABLE_PROG_HEADER REG_BIT(12)
+#define BMG_DP_BYPASS_M_N_LIMIT REG_BIT(11)
#define DP_DSC_INSERT_SF_AT_EOL_WA REG_BIT(4)
#define HDCP_LINE_REKEY_DISABLE REG_BIT(0)
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 4/4] drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n ratio > 10
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
` (2 preceding siblings ...)
2024-09-17 17:41 ` [PATCH 3/4] drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10 Ankit Nautiyal
@ 2024-09-17 17:42 ` Ankit Nautiyal
2024-09-17 18:26 ` ✗ Fi.CI.SPARSE: warning for Implement Wa_14021768792 to bypass m_n ratio limit (rev2) Patchwork
2024-09-17 18:49 ` ✗ Fi.CI.BAT: failure " Patchwork
5 siblings, 0 replies; 15+ messages in thread
From: Ankit Nautiyal @ 2024-09-17 17:42 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula
Handle the bypass logic for the M/N ratio limit for DP.
Calculate the M/N ratio, check if it can bypass the limit, and set the
appropriate flags for the workaround.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 1 -
drivers/gpu/drm/i915/display/intel_display.h | 4 +++
drivers/gpu/drm/i915/display/intel_dp.c | 27 ++++++++++++++++++--
drivers/gpu/drm/i915/display/intel_dp.h | 5 ++++
drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 +++-
5 files changed, 38 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index abb499de1c56..cca3b4781bba 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3448,7 +3448,6 @@ void bmg_bypass_m_n_limit_read(struct intel_crtc *crtc,
m_n->bypass_m_n_ratio_limit = true;
}
-static
int bmg_can_bypass_m_n_limit(struct intel_display *display,
int m_n_ratio,
enum pipe pipe)
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index a8214787b115..cb847d4eae6e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -576,4 +576,8 @@ bool assert_port_valid(struct drm_i915_private *i915, enum port port);
bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915);
+int bmg_can_bypass_m_n_limit(struct intel_display *display,
+ int m_n_ratio,
+ enum pipe pipe);
+
#endif
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 211d37353d99..a127b3da3568 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2861,6 +2861,23 @@ static bool can_enable_drrs(struct intel_connector *connector,
intel_panel_drrs_type(connector) == DRRS_TYPE_SEAMLESS;
}
+bool
+intel_dp_bmg_bypass_m_n_limit(struct intel_display *display,
+ struct intel_link_m_n *m_n,
+ enum pipe pipe)
+{
+ int m_n_ratio;
+
+ m_n_ratio = DIV_ROUND_UP(m_n->link_m, m_n->link_n);
+
+ if (!bmg_can_bypass_m_n_limit(display, m_n_ratio, pipe))
+ return false;
+
+ m_n->bypass_m_n_ratio_limit = true;
+
+ return true;
+}
+
static int
intel_dp_drrs_compute_config(struct intel_connector *connector,
struct intel_crtc_state *pipe_config,
@@ -2870,6 +2887,8 @@ intel_dp_drrs_compute_config(struct intel_connector *connector,
struct intel_display *display = to_intel_display(connector);
const struct drm_display_mode *downclock_mode =
intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode);
+ struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
+ enum pipe pipe = crtc->pipe;
int pixel_clock;
int ret;
@@ -2899,7 +2918,8 @@ intel_dp_drrs_compute_config(struct intel_connector *connector,
pipe_config->port_clock,
intel_dp_bw_fec_overhead(pipe_config->fec_enable),
&pipe_config->dp_m2_n2);
- if (ret)
+
+ if (ret && !intel_dp_bmg_bypass_m_n_limit(display, &pipe_config->dp_m2_n2, pipe))
return ret;
/* FIXME: abstract this better */
@@ -3035,6 +3055,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
const struct drm_display_mode *fixed_mode;
struct intel_connector *connector = intel_dp->attached_connector;
+ struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
+ enum pipe pipe = crtc->pipe;
int ret = 0, link_bpp_x16;
if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && encoder->port != PORT_A)
@@ -3117,7 +3139,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
pipe_config->port_clock,
intel_dp_bw_fec_overhead(pipe_config->fec_enable),
&pipe_config->dp_m_n);
- if (ret)
+
+ if (ret && !intel_dp_bmg_bypass_m_n_limit(display, &pipe_config->dp_m_n, pipe))
return ret;
/* FIXME: abstract this better */
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 1b9aaddd8c35..92acb6a9eb4b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -20,8 +20,10 @@ struct intel_atomic_state;
struct intel_connector;
struct intel_crtc_state;
struct intel_digital_port;
+struct intel_display;
struct intel_dp;
struct intel_encoder;
+struct intel_link_m_n;
struct link_config_limits {
int min_rate, max_rate;
@@ -203,5 +205,8 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector);
bool intel_dp_has_gamut_metadata_dip(struct intel_encoder *encoder);
+bool intel_dp_bmg_bypass_m_n_limit(struct intel_display *display,
+ struct intel_link_m_n *m_n,
+ enum pipe pipe);
#endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 317eb04bd8c6..817895b427ba 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -131,6 +131,8 @@ static int intel_dp_mst_compute_m_n(const struct intel_crtc_state *crtc_state,
const struct drm_display_mode *adjusted_mode =
&crtc_state->hw.adjusted_mode;
struct intel_display *display = to_intel_display(connector);
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ enum pipe pipe = crtc->pipe;
int ret;
/* TODO: Check WA 14013163432 to set data M/N for full BW utilization. */
@@ -138,7 +140,8 @@ static int intel_dp_mst_compute_m_n(const struct intel_crtc_state *crtc_state,
adjusted_mode->crtc_clock,
crtc_state->port_clock,
overhead, m_n);
- if (ret)
+
+ if (ret && !intel_dp_bmg_bypass_m_n_limit(display, m_n, pipe))
return ret;
m_n->tu = DIV_ROUND_UP_ULL(mul_u32_u32(m_n->data_m, 64), m_n->data_n);
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2024-09-17 17:41 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
@ 2024-09-17 17:46 ` Jani Nikula
2024-09-18 3:58 ` Nautiyal, Ankit K
0 siblings, 1 reply; 15+ messages in thread
From: Jani Nikula @ 2024-09-17 17:46 UTC (permalink / raw)
To: Ankit Nautiyal, intel-gfx, intel-xe
On Tue, 17 Sep 2024, Ankit Nautiyal <ankit.k.nautiyal@intel.com> wrote:
> LINK_N register has bits 31:24 for extended link N value used for
> HDMI2.1 and for an alternate mode of operation of DP TG DDA
> (Bspec:50488).
>
> Add support for these extra bits.
>
> v2: Drop extra link_n_ext member. (Jani)
>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 21 ++++++++++++++-----
> drivers/gpu/drm/i915/display/intel_display.h | 2 +-
> .../gpu/drm/i915/display/intel_pch_display.c | 4 ++--
> drivers/gpu/drm/i915/i915_reg.h | 2 ++
> 4 files changed, 21 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 426074afef43..4b1bb1f43adb 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2633,9 +2633,12 @@ void intel_zero_m_n(struct intel_link_m_n *m_n)
>
> void intel_set_m_n(struct drm_i915_private *i915,
> const struct intel_link_m_n *m_n,
> + u8 link_n_ext,
> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> {
> + u8 link_n = m_n->link_n;
You also don't need the parameter. You don't need to pass it
around. Please read my previous review.
BR,
Jani.
> +
> intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
> intel_de_write(i915, data_n_reg, m_n->data_n);
> intel_de_write(i915, link_m_reg, m_n->link_m);
> @@ -2643,7 +2646,11 @@ void intel_set_m_n(struct drm_i915_private *i915,
> * On BDW+ writing LINK_N arms the double buffered update
> * of all the M/N registers, so it must be written last.
> */
> - intel_de_write(i915, link_n_reg, m_n->link_n);
> +
> + if (DISPLAY_VER(i915) >= 14 && link_n_ext)
> + link_n |= PIPE_LINK_N1_EXTENDED(link_n_ext);
> +
> + intel_de_write(i915, link_n_reg, link_n);
> }
>
> bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
> @@ -2663,13 +2670,13 @@ void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
> enum pipe pipe = crtc->pipe;
>
> if (DISPLAY_VER(dev_priv) >= 5)
> - intel_set_m_n(dev_priv, m_n,
> + intel_set_m_n(dev_priv, m_n, 0,
> PIPE_DATA_M1(dev_priv, transcoder),
> PIPE_DATA_N1(dev_priv, transcoder),
> PIPE_LINK_M1(dev_priv, transcoder),
> PIPE_LINK_N1(dev_priv, transcoder));
> else
> - intel_set_m_n(dev_priv, m_n,
> + intel_set_m_n(dev_priv, m_n, 0,
> PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
> PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
> }
> @@ -2683,7 +2690,7 @@ void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
> if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder))
> return;
>
> - intel_set_m_n(dev_priv, m_n,
> + intel_set_m_n(dev_priv, m_n, 0,
> PIPE_DATA_M2(dev_priv, transcoder),
> PIPE_DATA_N2(dev_priv, transcoder),
> PIPE_LINK_M2(dev_priv, transcoder),
> @@ -3351,7 +3358,11 @@ void intel_get_m_n(struct drm_i915_private *i915,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> {
> m_n->link_m = intel_de_read(i915, link_m_reg) & DATA_LINK_M_N_MASK;
> - m_n->link_n = intel_de_read(i915, link_n_reg) & DATA_LINK_M_N_MASK;
> + m_n->link_n = intel_de_read(i915, link_n_reg);
> +
> + if (DISPLAY_VER(i915) < 14)
> + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> +
> m_n->data_m = intel_de_read(i915, data_m_reg) & DATA_LINK_M_N_MASK;
> m_n->data_n = intel_de_read(i915, data_n_reg) & DATA_LINK_M_N_MASK;
> m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1;
> diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
> index 4bdb48084cab..3b12d7f7c6c3 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.h
> +++ b/drivers/gpu/drm/i915/display/intel_display.h
> @@ -473,7 +473,7 @@ bool intel_fuzzy_clock_check(int clock1, int clock2);
>
> void intel_zero_m_n(struct intel_link_m_n *m_n);
> void intel_set_m_n(struct drm_i915_private *i915,
> - const struct intel_link_m_n *m_n,
> + const struct intel_link_m_n *m_n, u8 link_n_ext,
> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg);
> void intel_get_m_n(struct drm_i915_private *i915,
> diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c
> index f13ab680c2cf..74bc4de6d123 100644
> --- a/drivers/gpu/drm/i915/display/intel_pch_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
> @@ -178,7 +178,7 @@ static void intel_pch_transcoder_set_m1_n1(struct intel_crtc *crtc,
> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> enum pipe pipe = crtc->pipe;
>
> - intel_set_m_n(dev_priv, m_n,
> + intel_set_m_n(dev_priv, m_n, 0,
> PCH_TRANS_DATA_M1(pipe), PCH_TRANS_DATA_N1(pipe),
> PCH_TRANS_LINK_M1(pipe), PCH_TRANS_LINK_N1(pipe));
> }
> @@ -189,7 +189,7 @@ static void intel_pch_transcoder_set_m2_n2(struct intel_crtc *crtc,
> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> enum pipe pipe = crtc->pipe;
>
> - intel_set_m_n(dev_priv, m_n,
> + intel_set_m_n(dev_priv, m_n, 0,
> PCH_TRANS_DATA_M2(pipe), PCH_TRANS_DATA_N2(pipe),
> PCH_TRANS_LINK_M2(pipe), PCH_TRANS_LINK_N2(pipe));
> }
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 7396fc630e29..a770b5dbf5e4 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -2158,6 +2158,8 @@
>
> #define _PIPEA_LINK_N1 0x60044
> #define _PIPEB_LINK_N1 0x61044
> +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
> +#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
> #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
>
> #define _PIPEA_LINK_M2 0x60048
--
Jani Nikula, Intel
^ permalink raw reply [flat|nested] 15+ messages in thread
* ✗ Fi.CI.SPARSE: warning for Implement Wa_14021768792 to bypass m_n ratio limit (rev2)
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
` (3 preceding siblings ...)
2024-09-17 17:42 ` [PATCH 4/4] drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n " Ankit Nautiyal
@ 2024-09-17 18:26 ` Patchwork
2024-09-17 18:49 ` ✗ Fi.CI.BAT: failure " Patchwork
5 siblings, 0 replies; 15+ messages in thread
From: Patchwork @ 2024-09-17 18:26 UTC (permalink / raw)
To: Ankit Nautiyal; +Cc: intel-gfx
== Series Details ==
Series: Implement Wa_14021768792 to bypass m_n ratio limit (rev2)
URL : https://patchwork.freedesktop.org/series/138257/
State : warning
== Summary ==
Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:116:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:147:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:149:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:153:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:155:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:173:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:175:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:179:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:181:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:185:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:187:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:191:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:194:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:236:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:238:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:243:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:245:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-gene
^ permalink raw reply [flat|nested] 15+ messages in thread
* ✗ Fi.CI.BAT: failure for Implement Wa_14021768792 to bypass m_n ratio limit (rev2)
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
` (4 preceding siblings ...)
2024-09-17 18:26 ` ✗ Fi.CI.SPARSE: warning for Implement Wa_14021768792 to bypass m_n ratio limit (rev2) Patchwork
@ 2024-09-17 18:49 ` Patchwork
5 siblings, 0 replies; 15+ messages in thread
From: Patchwork @ 2024-09-17 18:49 UTC (permalink / raw)
To: Ankit Nautiyal; +Cc: intel-gfx
[-- Attachment #1: Type: text/plain, Size: 6030 bytes --]
== Series Details ==
Series: Implement Wa_14021768792 to bypass m_n ratio limit (rev2)
URL : https://patchwork.freedesktop.org/series/138257/
State : failure
== Summary ==
CI Bug Log - changes from CI_DRM_15429 -> Patchwork_138257v2
====================================================
Summary
-------
**FAILURE**
Serious unknown changes coming with Patchwork_138257v2 absolutely need to be
verified manually.
If you think the reported changes have nothing to do with the changes
introduced in Patchwork_138257v2, please notify your bug team (I915-ci-infra@lists.freedesktop.org) to allow them
to document this new failure mode, which will reduce false positives in CI.
External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/index.html
Participating hosts (40 -> 31)
------------------------------
Missing (9): bat-arlh-3 bat-adlp-9 fi-bsw-n3050 fi-snb-2520m bat-adlp-6 fi-glk-j4005 fi-kbl-8809g bat-jsl-1 bat-arlh-2
Possible new issues
-------------------
Here are the unknown changes that may have been introduced in Patchwork_138257v2:
### IGT changes ###
#### Possible regressions ####
* igt@gem_close_race@basic-threads:
- bat-rplp-1: [PASS][1] -> [DMESG-WARN][2]
[1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-rplp-1/igt@gem_close_race@basic-threads.html
[2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-rplp-1/igt@gem_close_race@basic-threads.html
* igt@i915_module_load@load:
- fi-ilk-650: [PASS][3] -> [ABORT][4]
[3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/fi-ilk-650/igt@i915_module_load@load.html
[4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/fi-ilk-650/igt@i915_module_load@load.html
- bat-twl-2: [PASS][5] -> [ABORT][6]
[5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-twl-2/igt@i915_module_load@load.html
[6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-twl-2/igt@i915_module_load@load.html
- fi-kbl-7567u: [PASS][7] -> [ABORT][8]
[7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/fi-kbl-7567u/igt@i915_module_load@load.html
[8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/fi-kbl-7567u/igt@i915_module_load@load.html
- bat-apl-1: [PASS][9] -> [ABORT][10]
[9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-apl-1/igt@i915_module_load@load.html
[10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-apl-1/igt@i915_module_load@load.html
- fi-cfl-8109u: [PASS][11] -> [ABORT][12]
[11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/fi-cfl-8109u/igt@i915_module_load@load.html
[12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/fi-cfl-8109u/igt@i915_module_load@load.html
- bat-arls-2: [PASS][13] -> [ABORT][14]
[13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-arls-2/igt@i915_module_load@load.html
[14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-arls-2/igt@i915_module_load@load.html
- fi-ivb-3770: [PASS][15] -> [ABORT][16]
[15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/fi-ivb-3770/igt@i915_module_load@load.html
[16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/fi-ivb-3770/igt@i915_module_load@load.html
- bat-mtlp-8: [PASS][17] -> [ABORT][18]
[17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-mtlp-8/igt@i915_module_load@load.html
[18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-mtlp-8/igt@i915_module_load@load.html
- bat-dg2-8: [PASS][19] -> [ABORT][20]
[19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-dg2-8/igt@i915_module_load@load.html
[20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-dg2-8/igt@i915_module_load@load.html
* igt@kms_busy@basic@flip:
- bat-rplp-1: [PASS][21] -> [ABORT][22] +1 other test abort
[21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-rplp-1/igt@kms_busy@basic@flip.html
[22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-rplp-1/igt@kms_busy@basic@flip.html
* igt@kms_busy@basic@modeset:
- bat-twl-1: [PASS][23] -> [ABORT][24] +1 other test abort
[23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-twl-1/igt@kms_busy@basic@modeset.html
[24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-twl-1/igt@kms_busy@basic@modeset.html
#### Warnings ####
* igt@i915_module_load@load:
- bat-arls-5: [DMESG-WARN][25] ([i915#11637]) -> [ABORT][26]
[25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-arls-5/igt@i915_module_load@load.html
[26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-arls-5/igt@i915_module_load@load.html
Known issues
------------
Here are the changes found in Patchwork_138257v2 that come from known issues:
### IGT changes ###
#### Warnings ####
* igt@fbdev@read:
- bat-arls-1: [DMESG-WARN][27] ([i915#12102]) -> [DMESG-FAIL][28] ([i915#12102])
[27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15429/bat-arls-1/igt@fbdev@read.html
[28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/bat-arls-1/igt@fbdev@read.html
[i915#11637]: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11637
[i915#12102]: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12102
Build changes
-------------
* Linux: CI_DRM_15429 -> Patchwork_138257v2
CI-20190529: 20190529
CI_DRM_15429: 38e1b615fb395b928e514108e908cd6edf3d34c3 @ git://anongit.freedesktop.org/gfx-ci/linux
IGT_8022: 2d82f767a959d58c04ff3876d59d67924208d4ef @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
Patchwork_138257v2: 38e1b615fb395b928e514108e908cd6edf3d34c3 @ git://anongit.freedesktop.org/gfx-ci/linux
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_138257v2/index.html
[-- Attachment #2: Type: text/html, Size: 6886 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2024-09-17 17:46 ` Jani Nikula
@ 2024-09-18 3:58 ` Nautiyal, Ankit K
0 siblings, 0 replies; 15+ messages in thread
From: Nautiyal, Ankit K @ 2024-09-18 3:58 UTC (permalink / raw)
To: Jani Nikula, intel-gfx, intel-xe
On 9/17/2024 11:16 PM, Jani Nikula wrote:
> On Tue, 17 Sep 2024, Ankit Nautiyal <ankit.k.nautiyal@intel.com> wrote:
>> LINK_N register has bits 31:24 for extended link N value used for
>> HDMI2.1 and for an alternate mode of operation of DP TG DDA
>> (Bspec:50488).
>>
>> Add support for these extra bits.
>>
>> v2: Drop extra link_n_ext member. (Jani)
>>
>> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
>> ---
>> drivers/gpu/drm/i915/display/intel_display.c | 21 ++++++++++++++-----
>> drivers/gpu/drm/i915/display/intel_display.h | 2 +-
>> .../gpu/drm/i915/display/intel_pch_display.c | 4 ++--
>> drivers/gpu/drm/i915/i915_reg.h | 2 ++
>> 4 files changed, 21 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
>> index 426074afef43..4b1bb1f43adb 100644
>> --- a/drivers/gpu/drm/i915/display/intel_display.c
>> +++ b/drivers/gpu/drm/i915/display/intel_display.c
>> @@ -2633,9 +2633,12 @@ void intel_zero_m_n(struct intel_link_m_n *m_n)
>>
>> void intel_set_m_n(struct drm_i915_private *i915,
>> const struct intel_link_m_n *m_n,
>> + u8 link_n_ext,
>> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
>> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
>> {
>> + u8 link_n = m_n->link_n;
> You also don't need the parameter. You don't need to pass it
> around. Please read my previous review.
Thank you for your feedback. I was trying to avoid mixing link_n with
link_n_ext bits, which as I understand gets filled with different kinds
of things.
If we want to have link_n along with ext bits, then perhaps we need to
mask these whenever we want to retrieve link_n.
So I will:
->mask the extended bits in this patch, as suggested.
->have link_n filled with extended bits during compute_config if
required, in intel_link_compute_m_n()
->change the places where m_n->link_n is used (e.g in
intel_dotclock_calculate() ) to mask the extended bits, before use.
Please let me know if this approach seems alright or if there is
another way you would prefer.
Thanks & Regards,
Ankit
>
> BR,
> Jani.
>
>> +
>> intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
>> intel_de_write(i915, data_n_reg, m_n->data_n);
>> intel_de_write(i915, link_m_reg, m_n->link_m);
>> @@ -2643,7 +2646,11 @@ void intel_set_m_n(struct drm_i915_private *i915,
>> * On BDW+ writing LINK_N arms the double buffered update
>> * of all the M/N registers, so it must be written last.
>> */
>> - intel_de_write(i915, link_n_reg, m_n->link_n);
>> +
>> + if (DISPLAY_VER(i915) >= 14 && link_n_ext)
>> + link_n |= PIPE_LINK_N1_EXTENDED(link_n_ext);
>> +
>> + intel_de_write(i915, link_n_reg, link_n);
>> }
>>
>> bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
>> @@ -2663,13 +2670,13 @@ void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
>> enum pipe pipe = crtc->pipe;
>>
>> if (DISPLAY_VER(dev_priv) >= 5)
>> - intel_set_m_n(dev_priv, m_n,
>> + intel_set_m_n(dev_priv, m_n, 0,
>> PIPE_DATA_M1(dev_priv, transcoder),
>> PIPE_DATA_N1(dev_priv, transcoder),
>> PIPE_LINK_M1(dev_priv, transcoder),
>> PIPE_LINK_N1(dev_priv, transcoder));
>> else
>> - intel_set_m_n(dev_priv, m_n,
>> + intel_set_m_n(dev_priv, m_n, 0,
>> PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
>> PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
>> }
>> @@ -2683,7 +2690,7 @@ void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
>> if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder))
>> return;
>>
>> - intel_set_m_n(dev_priv, m_n,
>> + intel_set_m_n(dev_priv, m_n, 0,
>> PIPE_DATA_M2(dev_priv, transcoder),
>> PIPE_DATA_N2(dev_priv, transcoder),
>> PIPE_LINK_M2(dev_priv, transcoder),
>> @@ -3351,7 +3358,11 @@ void intel_get_m_n(struct drm_i915_private *i915,
>> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
>> {
>> m_n->link_m = intel_de_read(i915, link_m_reg) & DATA_LINK_M_N_MASK;
>> - m_n->link_n = intel_de_read(i915, link_n_reg) & DATA_LINK_M_N_MASK;
>> + m_n->link_n = intel_de_read(i915, link_n_reg);
>> +
>> + if (DISPLAY_VER(i915) < 14)
>> + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
>> +
>> m_n->data_m = intel_de_read(i915, data_m_reg) & DATA_LINK_M_N_MASK;
>> m_n->data_n = intel_de_read(i915, data_n_reg) & DATA_LINK_M_N_MASK;
>> m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1;
>> diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
>> index 4bdb48084cab..3b12d7f7c6c3 100644
>> --- a/drivers/gpu/drm/i915/display/intel_display.h
>> +++ b/drivers/gpu/drm/i915/display/intel_display.h
>> @@ -473,7 +473,7 @@ bool intel_fuzzy_clock_check(int clock1, int clock2);
>>
>> void intel_zero_m_n(struct intel_link_m_n *m_n);
>> void intel_set_m_n(struct drm_i915_private *i915,
>> - const struct intel_link_m_n *m_n,
>> + const struct intel_link_m_n *m_n, u8 link_n_ext,
>> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
>> i915_reg_t link_m_reg, i915_reg_t link_n_reg);
>> void intel_get_m_n(struct drm_i915_private *i915,
>> diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c
>> index f13ab680c2cf..74bc4de6d123 100644
>> --- a/drivers/gpu/drm/i915/display/intel_pch_display.c
>> +++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
>> @@ -178,7 +178,7 @@ static void intel_pch_transcoder_set_m1_n1(struct intel_crtc *crtc,
>> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
>> enum pipe pipe = crtc->pipe;
>>
>> - intel_set_m_n(dev_priv, m_n,
>> + intel_set_m_n(dev_priv, m_n, 0,
>> PCH_TRANS_DATA_M1(pipe), PCH_TRANS_DATA_N1(pipe),
>> PCH_TRANS_LINK_M1(pipe), PCH_TRANS_LINK_N1(pipe));
>> }
>> @@ -189,7 +189,7 @@ static void intel_pch_transcoder_set_m2_n2(struct intel_crtc *crtc,
>> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
>> enum pipe pipe = crtc->pipe;
>>
>> - intel_set_m_n(dev_priv, m_n,
>> + intel_set_m_n(dev_priv, m_n, 0,
>> PCH_TRANS_DATA_M2(pipe), PCH_TRANS_DATA_N2(pipe),
>> PCH_TRANS_LINK_M2(pipe), PCH_TRANS_LINK_N2(pipe));
>> }
>> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>> index 7396fc630e29..a770b5dbf5e4 100644
>> --- a/drivers/gpu/drm/i915/i915_reg.h
>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>> @@ -2158,6 +2158,8 @@
>>
>> #define _PIPEA_LINK_N1 0x60044
>> #define _PIPEB_LINK_N1 0x61044
>> +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
>> +#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
>> #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
>>
>> #define _PIPEA_LINK_M2 0x60048
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2024-10-10 4:10 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
@ 2024-10-10 4:10 ` Ankit Nautiyal
2024-11-28 6:54 ` Srikanth V, NagaVenkata
0 siblings, 1 reply; 15+ messages in thread
From: Ankit Nautiyal @ 2024-10-10 4:10 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula, uma.shankar
LINK_N register has bits 31:24 for extended link N value used for
HDMI2.1 and for an alternate mode of operation of DP TG DDA
(Bspec:50488).
Add support for these extra bits.
v2: Drop extra link_n_ext member. (Jani)
v3: Avoid link_n_ext in set_m_n helper. (Jani)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 17 +++++++++++++++--
drivers/gpu/drm/i915/i915_reg.h | 2 ++
2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e1f6255e918b..2a7fa0013b44 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2721,14 +2721,21 @@ void intel_set_m_n(struct drm_i915_private *i915,
i915_reg_t data_m_reg, i915_reg_t data_n_reg,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
+ u32 link_n = m_n->link_n;
+
intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
intel_de_write(i915, data_n_reg, m_n->data_n);
intel_de_write(i915, link_m_reg, m_n->link_m);
+
+ if (DISPLAY_VER(i915) >= 14)
+ link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
+ else
+ link_n &= DATA_LINK_M_N_MASK;
/*
* On BDW+ writing LINK_N arms the double buffered update
* of all the M/N registers, so it must be written last.
*/
- intel_de_write(i915, link_n_reg, m_n->link_n);
+ intel_de_write(i915, link_n_reg, link_n);
}
bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
@@ -3438,7 +3445,13 @@ void intel_get_m_n(struct drm_i915_private *i915,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
m_n->link_m = intel_de_read(i915, link_m_reg) & DATA_LINK_M_N_MASK;
- m_n->link_n = intel_de_read(i915, link_n_reg) & DATA_LINK_M_N_MASK;
+ m_n->link_n = intel_de_read(i915, link_n_reg);
+
+ if (DISPLAY_VER(i915) >= 14)
+ m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
+ else
+ m_n->link_n &= DATA_LINK_M_N_MASK;
+
m_n->data_m = intel_de_read(i915, data_m_reg) & DATA_LINK_M_N_MASK;
m_n->data_n = intel_de_read(i915, data_n_reg) & DATA_LINK_M_N_MASK;
m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 818142f5a10c..c605642ffc3e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2167,6 +2167,8 @@
#define _PIPEA_LINK_N1 0x60044
#define _PIPEB_LINK_N1 0x61044
+#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
+#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
#define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
#define _PIPEA_LINK_M2 0x60048
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* RE: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2024-10-10 4:10 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
@ 2024-11-28 6:54 ` Srikanth V, NagaVenkata
0 siblings, 0 replies; 15+ messages in thread
From: Srikanth V, NagaVenkata @ 2024-11-28 6:54 UTC (permalink / raw)
To: Nautiyal, Ankit K, intel-gfx@lists.freedesktop.org,
intel-xe@lists.freedesktop.org
Cc: jani.nikula@linux.intel.com, Shankar, Uma
> -----Original Message-----
> From: Intel-xe <intel-xe-bounces@lists.freedesktop.org> On Behalf Of Ankit
> Nautiyal
> Sent: Thursday, October 10, 2024 9:41 AM
> To: intel-gfx@lists.freedesktop.org; intel-xe@lists.freedesktop.org
> Cc: jani.nikula@linux.intel.com; Shankar, Uma <uma.shankar@intel.com>
> Subject: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
>
> LINK_N register has bits 31:24 for extended link N value used for
> HDMI2.1 and for an alternate mode of operation of DP TG DDA
> (Bspec:50488).
>
> Add support for these extra bits.
>
> v2: Drop extra link_n_ext member. (Jani)
> v3: Avoid link_n_ext in set_m_n helper. (Jani)
>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 17 +++++++++++++++--
> drivers/gpu/drm/i915/i915_reg.h | 2 ++
> 2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index e1f6255e918b..2a7fa0013b44 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2721,14 +2721,21 @@ void intel_set_m_n(struct drm_i915_private
> *i915,
> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg) {
> + u32 link_n = m_n->link_n;
> +
> intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n-
> >data_m);
> intel_de_write(i915, data_n_reg, m_n->data_n);
> intel_de_write(i915, link_m_reg, m_n->link_m);
> +
> + if (DISPLAY_VER(i915) >= 14)
> + link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> + else
> + link_n &= DATA_LINK_M_N_MASK;
I think, (~PIPE_LINK_N1_EXTENDED_MASK) and DATA_LINK_M_N_MASK macros
result in same value as 0xFFF.
> /*
> * On BDW+ writing LINK_N arms the double buffered update
> * of all the M/N registers, so it must be written last.
> */
> - intel_de_write(i915, link_n_reg, m_n->link_n);
> + intel_de_write(i915, link_n_reg, link_n);
> }
>
> bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
> @@ -3438,7 +3445,13 @@ void intel_get_m_n(struct drm_i915_private
> *i915,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg) {
> m_n->link_m = intel_de_read(i915, link_m_reg) &
> DATA_LINK_M_N_MASK;
> - m_n->link_n = intel_de_read(i915, link_n_reg) &
> DATA_LINK_M_N_MASK;
> + m_n->link_n = intel_de_read(i915, link_n_reg);
> +
> + if (DISPLAY_VER(i915) >= 14)
> + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> + else
> + m_n->link_n &= DATA_LINK_M_N_MASK;
> +
> m_n->data_m = intel_de_read(i915, data_m_reg) &
> DATA_LINK_M_N_MASK;
> m_n->data_n = intel_de_read(i915, data_n_reg) &
> DATA_LINK_M_N_MASK;
> m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915,
> data_m_reg)) + 1; diff --git a/drivers/gpu/drm/i915/i915_reg.h
> b/drivers/gpu/drm/i915/i915_reg.h index 818142f5a10c..c605642ffc3e
> 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -2167,6 +2167,8 @@
>
> #define _PIPEA_LINK_N1 0x60044
> #define _PIPEB_LINK_N1 0x61044
> +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
> +#define PIPE_LINK_N1_EXTENDED(val)
> REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
> #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran,
> _PIPEA_LINK_N1)
>
> #define _PIPEA_LINK_M2 0x60048
> --
> 2.45.2
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2025-03-21 11:26 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
@ 2025-03-21 11:26 ` Ankit Nautiyal
2025-03-21 18:31 ` Ville Syrjälä
0 siblings, 1 reply; 15+ messages in thread
From: Ankit Nautiyal @ 2025-03-21 11:26 UTC (permalink / raw)
To: intel-gfx, intel-xe; +Cc: jani.nikula, uma.shankar
LINK_N register has bits 31:24 for extended link N value used for
HDMI2.1 and for an alternate mode of operation of DP TG DDA
(Bspec:50488).
Add support for these extra bits.
For displays with version 14 or higher, the `PIPE_LINK_N1_EXTENDED_MASK`
(bits 31:24) is used to handle the extended link N bits.
For older platforms, the `DATA_LINK_M_N_MASK` (bits 23:0) is used to
handle the standard link N bits. This distinction ensures clarity and
maintains the semantics for platforms that support the extended bits.
In subsequent changes the logic is updated to conditionally apply the
extended link N bits.
v2: Drop extra link_n_ext member. (Jani)
v3: Avoid link_n_ext in set_m_n helper. (Jani)
v4: Rebase, and update commit message.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 18 ++++++++++++++++--
drivers/gpu/drm/i915/i915_reg.h | 2 ++
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3afb85fe8536..8fb0df388571 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2583,14 +2583,22 @@ void intel_set_m_n(struct intel_display *display,
i915_reg_t data_m_reg, i915_reg_t data_n_reg,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
+ u32 link_n = m_n->link_n;
+
intel_de_write(display, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
intel_de_write(display, data_n_reg, m_n->data_n);
intel_de_write(display, link_m_reg, m_n->link_m);
+
+ if (DISPLAY_VER(display) >= 14)
+ link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
+ else
+ link_n &= DATA_LINK_M_N_MASK;
+
/*
* On BDW+ writing LINK_N arms the double buffered update
* of all the M/N registers, so it must be written last.
*/
- intel_de_write(display, link_n_reg, m_n->link_n);
+ intel_de_write(display, link_n_reg, link_n);
}
bool intel_cpu_transcoder_has_m2_n2(struct intel_display *display,
@@ -3279,7 +3287,13 @@ void intel_get_m_n(struct intel_display *display,
i915_reg_t link_m_reg, i915_reg_t link_n_reg)
{
m_n->link_m = intel_de_read(display, link_m_reg) & DATA_LINK_M_N_MASK;
- m_n->link_n = intel_de_read(display, link_n_reg) & DATA_LINK_M_N_MASK;
+ m_n->link_n = intel_de_read(display, link_n_reg);
+
+ if (DISPLAY_VER(display) >= 14)
+ m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
+ else
+ m_n->link_n &= DATA_LINK_M_N_MASK;
+
m_n->data_m = intel_de_read(display, data_m_reg) & DATA_LINK_M_N_MASK;
m_n->data_n = intel_de_read(display, data_n_reg) & DATA_LINK_M_N_MASK;
m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(display, data_m_reg)) + 1;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c5064eebe063..a2054aced4f8 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1869,6 +1869,8 @@
#define _PIPEA_LINK_N1 0x60044
#define _PIPEB_LINK_N1 0x61044
+#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
+#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
#define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
#define _PIPEA_LINK_M2 0x60048
--
2.45.2
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2025-03-21 11:26 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
@ 2025-03-21 18:31 ` Ville Syrjälä
2025-03-21 18:42 ` Ville Syrjälä
2025-03-26 9:24 ` Nautiyal, Ankit K
0 siblings, 2 replies; 15+ messages in thread
From: Ville Syrjälä @ 2025-03-21 18:31 UTC (permalink / raw)
To: Ankit Nautiyal; +Cc: intel-gfx, intel-xe, jani.nikula, uma.shankar
On Fri, Mar 21, 2025 at 04:56:47PM +0530, Ankit Nautiyal wrote:
> LINK_N register has bits 31:24 for extended link N value used for
> HDMI2.1 and for an alternate mode of operation of DP TG DDA
> (Bspec:50488).
>
> Add support for these extra bits.
>
> For displays with version 14 or higher, the `PIPE_LINK_N1_EXTENDED_MASK`
> (bits 31:24) is used to handle the extended link N bits.
> For older platforms, the `DATA_LINK_M_N_MASK` (bits 23:0) is used to
> handle the standard link N bits. This distinction ensures clarity and
> maintains the semantics for platforms that support the extended bits.
> In subsequent changes the logic is updated to conditionally apply the
> extended link N bits.
>
> v2: Drop extra link_n_ext member. (Jani)
> v3: Avoid link_n_ext in set_m_n helper. (Jani)
> v4: Rebase, and update commit message.
>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 18 ++++++++++++++++--
> drivers/gpu/drm/i915/i915_reg.h | 2 ++
> 2 files changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 3afb85fe8536..8fb0df388571 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2583,14 +2583,22 @@ void intel_set_m_n(struct intel_display *display,
> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> {
> + u32 link_n = m_n->link_n;
> +
> intel_de_write(display, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
> intel_de_write(display, data_n_reg, m_n->data_n);
> intel_de_write(display, link_m_reg, m_n->link_m);
> +
> + if (DISPLAY_VER(display) >= 14)
> + link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> + else
> + link_n &= DATA_LINK_M_N_MASK;
There should never be anything in those bits or we've screwed up
somewhere.
The actual w/a for the M/N > 10.0 looks like a pile of annoying
hacks in the hardware. I wonder if we could just live without it
to avoid complicating the code?
As for the 10.0 limit, I suspect there's nothing platform specific
about it and it's always been there. It's just not possible to hit
it with 8b/10b encoding. The correct place to handle this would seem
to be the link rate calculation, ie. just bump up the link rate until
the limit is no longer an issue (or error out if we can't increase the
link rate sufficiently).
> +
> /*
> * On BDW+ writing LINK_N arms the double buffered update
> * of all the M/N registers, so it must be written last.
> */
> - intel_de_write(display, link_n_reg, m_n->link_n);
> + intel_de_write(display, link_n_reg, link_n);
> }
>
> bool intel_cpu_transcoder_has_m2_n2(struct intel_display *display,
> @@ -3279,7 +3287,13 @@ void intel_get_m_n(struct intel_display *display,
> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> {
> m_n->link_m = intel_de_read(display, link_m_reg) & DATA_LINK_M_N_MASK;
> - m_n->link_n = intel_de_read(display, link_n_reg) & DATA_LINK_M_N_MASK;
> + m_n->link_n = intel_de_read(display, link_n_reg);
> +
> + if (DISPLAY_VER(display) >= 14)
> + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> + else
> + m_n->link_n &= DATA_LINK_M_N_MASK;
> +
> m_n->data_m = intel_de_read(display, data_m_reg) & DATA_LINK_M_N_MASK;
> m_n->data_n = intel_de_read(display, data_n_reg) & DATA_LINK_M_N_MASK;
> m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(display, data_m_reg)) + 1;
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index c5064eebe063..a2054aced4f8 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1869,6 +1869,8 @@
>
> #define _PIPEA_LINK_N1 0x60044
> #define _PIPEB_LINK_N1 0x61044
> +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
> +#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
> #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
>
> #define _PIPEA_LINK_M2 0x60048
> --
> 2.45.2
--
Ville Syrjälä
Intel
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2025-03-21 18:31 ` Ville Syrjälä
@ 2025-03-21 18:42 ` Ville Syrjälä
2025-03-26 9:24 ` Nautiyal, Ankit K
1 sibling, 0 replies; 15+ messages in thread
From: Ville Syrjälä @ 2025-03-21 18:42 UTC (permalink / raw)
To: Ankit Nautiyal; +Cc: intel-gfx, intel-xe, jani.nikula, uma.shankar
On Fri, Mar 21, 2025 at 08:31:22PM +0200, Ville Syrjälä wrote:
> On Fri, Mar 21, 2025 at 04:56:47PM +0530, Ankit Nautiyal wrote:
> > LINK_N register has bits 31:24 for extended link N value used for
> > HDMI2.1 and for an alternate mode of operation of DP TG DDA
> > (Bspec:50488).
> >
> > Add support for these extra bits.
> >
> > For displays with version 14 or higher, the `PIPE_LINK_N1_EXTENDED_MASK`
> > (bits 31:24) is used to handle the extended link N bits.
> > For older platforms, the `DATA_LINK_M_N_MASK` (bits 23:0) is used to
> > handle the standard link N bits. This distinction ensures clarity and
> > maintains the semantics for platforms that support the extended bits.
> > In subsequent changes the logic is updated to conditionally apply the
> > extended link N bits.
> >
> > v2: Drop extra link_n_ext member. (Jani)
> > v3: Avoid link_n_ext in set_m_n helper. (Jani)
> > v4: Rebase, and update commit message.
> >
> > Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> > ---
> > drivers/gpu/drm/i915/display/intel_display.c | 18 ++++++++++++++++--
> > drivers/gpu/drm/i915/i915_reg.h | 2 ++
> > 2 files changed, 18 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index 3afb85fe8536..8fb0df388571 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -2583,14 +2583,22 @@ void intel_set_m_n(struct intel_display *display,
> > i915_reg_t data_m_reg, i915_reg_t data_n_reg,
> > i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> > {
> > + u32 link_n = m_n->link_n;
> > +
> > intel_de_write(display, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
> > intel_de_write(display, data_n_reg, m_n->data_n);
> > intel_de_write(display, link_m_reg, m_n->link_m);
> > +
> > + if (DISPLAY_VER(display) >= 14)
> > + link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> > + else
> > + link_n &= DATA_LINK_M_N_MASK;
>
> There should never be anything in those bits or we've screwed up
> somewhere.
>
> The actual w/a for the M/N > 10.0 looks like a pile of annoying
> hacks in the hardware. I wonder if we could just live without it
> to avoid complicating the code?
>
> As for the 10.0 limit, I suspect there's nothing platform specific
> about it and it's always been there. It's just not possible to hit
> it with 8b/10b encoding.
Hmm. Maybe it would be possible to hit it with DSC+bigjoiner on ICL+.
Without some kind of joiner it's definitely not possible due to
cdclk limiting the max dotclock well below 1.62 GHz.
> The correct place to handle this would seem
> to be the link rate calculation, ie. just bump up the link rate until
> the limit is no longer an issue (or error out if we can't increase the
> link rate sufficiently).
>
> > +
> > /*
> > * On BDW+ writing LINK_N arms the double buffered update
> > * of all the M/N registers, so it must be written last.
> > */
> > - intel_de_write(display, link_n_reg, m_n->link_n);
> > + intel_de_write(display, link_n_reg, link_n);
> > }
> >
> > bool intel_cpu_transcoder_has_m2_n2(struct intel_display *display,
> > @@ -3279,7 +3287,13 @@ void intel_get_m_n(struct intel_display *display,
> > i915_reg_t link_m_reg, i915_reg_t link_n_reg)
> > {
> > m_n->link_m = intel_de_read(display, link_m_reg) & DATA_LINK_M_N_MASK;
> > - m_n->link_n = intel_de_read(display, link_n_reg) & DATA_LINK_M_N_MASK;
> > + m_n->link_n = intel_de_read(display, link_n_reg);
> > +
> > + if (DISPLAY_VER(display) >= 14)
> > + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
> > + else
> > + m_n->link_n &= DATA_LINK_M_N_MASK;
> > +
> > m_n->data_m = intel_de_read(display, data_m_reg) & DATA_LINK_M_N_MASK;
> > m_n->data_n = intel_de_read(display, data_n_reg) & DATA_LINK_M_N_MASK;
> > m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(display, data_m_reg)) + 1;
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> > index c5064eebe063..a2054aced4f8 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -1869,6 +1869,8 @@
> >
> > #define _PIPEA_LINK_N1 0x60044
> > #define _PIPEB_LINK_N1 0x61044
> > +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
> > +#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
> > #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
> >
> > #define _PIPEA_LINK_M2 0x60048
> > --
> > 2.45.2
>
> --
> Ville Syrjälä
> Intel
--
Ville Syrjälä
Intel
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14
2025-03-21 18:31 ` Ville Syrjälä
2025-03-21 18:42 ` Ville Syrjälä
@ 2025-03-26 9:24 ` Nautiyal, Ankit K
1 sibling, 0 replies; 15+ messages in thread
From: Nautiyal, Ankit K @ 2025-03-26 9:24 UTC (permalink / raw)
To: Ville Syrjälä; +Cc: intel-gfx, intel-xe, jani.nikula, uma.shankar
On 3/22/2025 12:01 AM, Ville Syrjälä wrote:
> On Fri, Mar 21, 2025 at 04:56:47PM +0530, Ankit Nautiyal wrote:
>> LINK_N register has bits 31:24 for extended link N value used for
>> HDMI2.1 and for an alternate mode of operation of DP TG DDA
>> (Bspec:50488).
>>
>> Add support for these extra bits.
>>
>> For displays with version 14 or higher, the `PIPE_LINK_N1_EXTENDED_MASK`
>> (bits 31:24) is used to handle the extended link N bits.
>> For older platforms, the `DATA_LINK_M_N_MASK` (bits 23:0) is used to
>> handle the standard link N bits. This distinction ensures clarity and
>> maintains the semantics for platforms that support the extended bits.
>> In subsequent changes the logic is updated to conditionally apply the
>> extended link N bits.
>>
>> v2: Drop extra link_n_ext member. (Jani)
>> v3: Avoid link_n_ext in set_m_n helper. (Jani)
>> v4: Rebase, and update commit message.
>>
>> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
>> ---
>> drivers/gpu/drm/i915/display/intel_display.c | 18 ++++++++++++++++--
>> drivers/gpu/drm/i915/i915_reg.h | 2 ++
>> 2 files changed, 18 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
>> index 3afb85fe8536..8fb0df388571 100644
>> --- a/drivers/gpu/drm/i915/display/intel_display.c
>> +++ b/drivers/gpu/drm/i915/display/intel_display.c
>> @@ -2583,14 +2583,22 @@ void intel_set_m_n(struct intel_display *display,
>> i915_reg_t data_m_reg, i915_reg_t data_n_reg,
>> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
>> {
>> + u32 link_n = m_n->link_n;
>> +
>> intel_de_write(display, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m);
>> intel_de_write(display, data_n_reg, m_n->data_n);
>> intel_de_write(display, link_m_reg, m_n->link_m);
>> +
>> + if (DISPLAY_VER(display) >= 14)
>> + link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
>> + else
>> + link_n &= DATA_LINK_M_N_MASK;
> There should never be anything in those bits or we've screwed up
> somewhere.
>
> The actual w/a for the M/N > 10.0 looks like a pile of annoying
> hacks in the hardware. I wonder if we could just live without it
> to avoid complicating the code?
Hi Ville,
Apologies for replying late on this.
Yes for general case we should not need it, but for very high refresh modes.
For BMG since we can support higher resolution with ultrajoiner, this WA
seems to be required for such cases to support till M/N ratio 15.
I am yet to come across such HW though.
>
> As for the 10.0 limit, I suspect there's nothing platform specific
> about it and it's always been there.
Yes that's right, but for newer platforms this seems to be getting changed.
> It's just not possible to hit
> it with 8b/10b encoding. The correct place to handle this would seem
> to be the link rate calculation, ie. just bump up the link rate until
> the limit is no longer an issue (or error out if we can't increase the
> link rate sufficiently).
Alright, will try this out.
Do you see a need to check the M/N ratio in modevalid to prune the modes
for which, even with highest rate, the ratio is more than the limit?
Currently I have not added this change.
Regards,
Ankit
>
>> +
>> /*
>> * On BDW+ writing LINK_N arms the double buffered update
>> * of all the M/N registers, so it must be written last.
>> */
>> - intel_de_write(display, link_n_reg, m_n->link_n);
>> + intel_de_write(display, link_n_reg, link_n);
>> }
>>
>> bool intel_cpu_transcoder_has_m2_n2(struct intel_display *display,
>> @@ -3279,7 +3287,13 @@ void intel_get_m_n(struct intel_display *display,
>> i915_reg_t link_m_reg, i915_reg_t link_n_reg)
>> {
>> m_n->link_m = intel_de_read(display, link_m_reg) & DATA_LINK_M_N_MASK;
>> - m_n->link_n = intel_de_read(display, link_n_reg) & DATA_LINK_M_N_MASK;
>> + m_n->link_n = intel_de_read(display, link_n_reg);
>> +
>> + if (DISPLAY_VER(display) >= 14)
>> + m_n->link_n &= ~PIPE_LINK_N1_EXTENDED_MASK;
>> + else
>> + m_n->link_n &= DATA_LINK_M_N_MASK;
>> +
>> m_n->data_m = intel_de_read(display, data_m_reg) & DATA_LINK_M_N_MASK;
>> m_n->data_n = intel_de_read(display, data_n_reg) & DATA_LINK_M_N_MASK;
>> m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(display, data_m_reg)) + 1;
>> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>> index c5064eebe063..a2054aced4f8 100644
>> --- a/drivers/gpu/drm/i915/i915_reg.h
>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>> @@ -1869,6 +1869,8 @@
>>
>> #define _PIPEA_LINK_N1 0x60044
>> #define _PIPEB_LINK_N1 0x61044
>> +#define PIPE_LINK_N1_EXTENDED_MASK REG_GENMASK(31, 24)
>> +#define PIPE_LINK_N1_EXTENDED(val) REG_FIELD_PREP(PIPE_LINK_N1_EXTENDED_MASK, (val))
>> #define PIPE_LINK_N1(dev_priv, tran) _MMIO_TRANS2(dev_priv, tran, _PIPEA_LINK_N1)
>>
>> #define _PIPEA_LINK_M2 0x60048
>> --
>> 2.45.2
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2025-03-26 9:25 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-09-17 17:41 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
2024-09-17 17:46 ` Jani Nikula
2024-09-18 3:58 ` Nautiyal, Ankit K
2024-09-17 17:41 ` [PATCH 2/4] drm/i915/display: Limit m/n ratio to 10 for display > 12 Ankit Nautiyal
2024-09-17 17:41 ` [PATCH 3/4] drm/i915/display: Add bits for Wa_14021768792 for linkm/n ratio > 10 Ankit Nautiyal
2024-09-17 17:42 ` [PATCH 4/4] drm/i915/display: Implement Wa_14021768792 for BMG DP for link_m/n " Ankit Nautiyal
2024-09-17 18:26 ` ✗ Fi.CI.SPARSE: warning for Implement Wa_14021768792 to bypass m_n ratio limit (rev2) Patchwork
2024-09-17 18:49 ` ✗ Fi.CI.BAT: failure " Patchwork
-- strict thread matches above, loose matches on Subject: below --
2024-10-10 4:10 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
2024-10-10 4:10 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
2024-11-28 6:54 ` Srikanth V, NagaVenkata
2025-03-21 11:26 [PATCH 0/4] Implement Wa_14021768792 to bypass m_n ratio limit Ankit Nautiyal
2025-03-21 11:26 ` [PATCH 1/4] Add bits for link_n_exended for DISPLAY >= 14 Ankit Nautiyal
2025-03-21 18:31 ` Ville Syrjälä
2025-03-21 18:42 ` Ville Syrjälä
2025-03-26 9:24 ` Nautiyal, Ankit K
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