The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 3a6a32b31a111f6e66526fb2d3cb13a876465076 Mon Sep 17 00:00:00 2001
From: Gabe Teeger <gabe.teeger(a)amd.com>
Date: Mon, 29 Jan 2024 13:31:44 -0500
Subject: [PATCH] Revert "drm/amd/display: Send DTBCLK disable message on first
commit"
This reverts commit f341055b10bd8be55c3c995dff5f770b236b8ca9.
System hang observed, this commit is thought to be the
regression point.
Cc: Mario Limonciello <mario.limonciello(a)amd.com>
Cc: Alex Deucher <alexander.deucher(a)amd.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Ovidiu Bunea <ovidiu.bunea(a)amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger(a)amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
---
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index 06edca50a8fa1..36e5bb611fb10 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -414,7 +414,6 @@ static void init_clk_states(struct clk_mgr *clk_mgr)
uint32_t ref_dtbclk = clk_mgr->clks.ref_dtbclk_khz;
memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
- clk_mgr->clks.dtbclk_en = true;
clk_mgr->clks.ref_dtbclk_khz = ref_dtbclk; // restore ref_dtbclk
clk_mgr->clks.p_state_change_support = true;
clk_mgr->clks.prev_p_state_change_support = true;
--
2.43.0
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 3b84525544be4ca0481110263a6d73eb00741cf3 Mon Sep 17 00:00:00 2001
From: Wayne Lin <Wayne.Lin(a)amd.com>
Date: Tue, 2 Jan 2024 14:20:37 +0800
Subject: [PATCH] drm/amd/display: Align the returned error code with legacy DP
[Why]
For usb4 connector, AUX transaction is handled by dmub utilizing a differnt
code path comparing to legacy DP connector. If the usb4 DP connector is
disconnected, AUX access will report EBUSY and cause igt@kms_dp_aux_dev
fail.
[How]
Align the error code with the one reported by legacy DP as EIO.
Cc: Mario Limonciello <mario.limonciello(a)amd.com>
Cc: Alex Deucher <alexander.deucher(a)amd.com>
Cc: stable(a)vger.kernel.org
Acked-by: Alex Hung <alex.hung(a)amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin(a)amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index eaf8d9f482446..85b7f58a7f35a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -979,6 +979,11 @@ int dm_helper_dmub_aux_transfer_sync(
struct aux_payload *payload,
enum aux_return_code_type *operation_result)
{
+ if (!link->hpd_status) {
+ *operation_result = AUX_RET_ERROR_HPD_DISCON;
+ return -1;
+ }
+
return amdgpu_dm_process_dmub_aux_transfer_sync(ctx, link->link_index, payload,
operation_result);
}
--
2.43.0
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 3d066f9547dd58329b526db44f42c487a7974703 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com>
Date: Wed, 21 Feb 2024 12:27:31 -0500
Subject: [PATCH] drm/amd/display: Fix idle check for shared firmware state
[WHY]
We still had an instance of get_idle_state checking the PMFW scratch
register instead of the actual idle allow signal.
[HOW]
Replace it with the SW state check for whether we had allowed idle
through notify_idle.
Cc: Mario Limonciello <mario.limonciello(a)amd.com>
Cc: Alex Deucher <alexander.deucher(a)amd.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Duncan Ma <duncan.ma(a)amd.com>
Acked-by: Alex Hung <alex.hung(a)amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 613d09c42f3b9..958552a8605ff 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -4847,22 +4847,16 @@ void dc_exit_ips_for_hw_access(struct dc *dc)
bool dc_dmub_is_ips_idle_state(struct dc *dc)
{
- uint32_t idle_state = 0;
-
if (dc->debug.disable_idle_power_optimizations)
return false;
if (!dc->caps.ips_support || (dc->config.disable_ips == DMUB_IPS_DISABLE_ALL))
return false;
- if (dc->hwss.get_idle_state)
- idle_state = dc->hwss.get_idle_state(dc);
-
- if (!(idle_state & DMUB_IPS1_ALLOW_MASK) ||
- !(idle_state & DMUB_IPS2_ALLOW_MASK))
- return true;
+ if (!dc->ctx->dmub_srv)
+ return false;
- return false;
+ return dc->ctx->dmub_srv->idle_allowed;
}
/* set min and max memory clock to lowest and highest DPM level, respectively */
--
2.43.0
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 6c6064cbe58b43533e3451ad6a8ba9736c109ac3 Mon Sep 17 00:00:00 2001
From: Philip Yang <Philip.Yang(a)amd.com>
Date: Mon, 11 Mar 2024 18:07:34 -0400
Subject: [PATCH] drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Otherwise after the GTT bo is released, the GTT and gart space is freed
but amdgpu_ttm_backend_unbind will not clear the gart page table entry
and leave valid mapping entry pointing to the stale system page. Then
if GPU access the gart address mistakely, it will read undefined value
instead page fault, harder to debug and reproduce the real issue.
Cc: stable(a)vger.kernel.org
Signed-off-by: Philip Yang <Philip.Yang(a)amd.com>
Reviewed-by: Christian König <christian.koenig(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 8722beba494e5..fc418e670fdae 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -864,6 +864,7 @@ static void amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
gtt->ttm.dma_address, flags);
}
+ gtt->bound = true;
}
/*
--
2.43.0
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 7af03e688792293ba33149fb8df619a8dff90e80 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula(a)intel.com>
Date: Fri, 8 Mar 2024 18:03:39 +0200
Subject: [PATCH] drm/probe-helper: warn about negative .get_modes()
The .get_modes() callback is supposed to return the number of modes,
never a negative error code. If a negative value is returned, it'll just
be interpreted as a negative count, and added to previous calculations.
Document the rules, but handle the negative values gracefully with an
error message.
Cc: stable(a)vger.kernel.org
Acked-by: Thomas Zimmermann <tzimmermann(a)suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/50208c866facc33226a3c77b82bb9…
Signed-off-by: Jani Nikula <jani.nikula(a)intel.com>
---
drivers/gpu/drm/drm_probe_helper.c | 7 +++++++
include/drm/drm_modeset_helper_vtables.h | 3 ++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 19ecb749704be..75f84753f6ee3 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -422,6 +422,13 @@ static int drm_helper_probe_get_modes(struct drm_connector *connector)
count = connector_funcs->get_modes(connector);
+ /* The .get_modes() callback should not return negative values. */
+ if (count < 0) {
+ drm_err(connector->dev, ".get_modes() returned %pe\n",
+ ERR_PTR(count));
+ count = 0;
+ }
+
/*
* Fallback for when DDC probe failed in drm_get_edid() and thus skipped
* override/firmware EDID.
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index 881b03e4dc288..9ed42469540eb 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -898,7 +898,8 @@ struct drm_connector_helper_funcs {
*
* RETURNS:
*
- * The number of modes added by calling drm_mode_probed_add().
+ * The number of modes added by calling drm_mode_probed_add(). Return 0
+ * on failures (no modes) instead of negative error codes.
*/
int (*get_modes)(struct drm_connector *connector);
--
2.43.0
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 7fb19d9510937121a1f285894cffd30bc96572e3 Mon Sep 17 00:00:00 2001
From: Josip Pavic <josip.pavic(a)amd.com>
Date: Fri, 9 Feb 2024 16:05:18 -0500
Subject: [PATCH] drm/amd/display: Allow dirty rects to be sent to dmub when
abm is active
[WHY]
It's beneficial for ABM to know when new frame data are available.
[HOW]
Add new condition to allow dirty rects to be sent to DMUB when ABM is
active. ABM will use this as a signal that a new frame has arrived.
Cc: Mario Limonciello <mario.limonciello(a)amd.com>
Cc: Alex Deucher <alexander.deucher(a)amd.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Anthony Koo <anthony.koo(a)amd.com>
Acked-by: Alex Hung <alex.hung(a)amd.com>
Signed-off-by: Josip Pavic <josip.pavic(a)amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 5211c1c0f3c0c..613d09c42f3b9 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3270,6 +3270,9 @@ static bool dc_dmub_should_send_dirty_rect_cmd(struct dc *dc, struct dc_stream_s
if (stream->link->replay_settings.config.replay_supported)
return true;
+ if (stream->ctx->dce_version >= DCN_VERSION_3_5 && stream->abm_level)
+ return true;
+
return false;
}
--
2.43.0