November 2023 - Linux-stable-mirror

[PATCH 5.15] Backport the fix for CVE-2023-25012 to kernel v5.15

by He Gao

This is the fix of CVE-2023-25012 for kernel v5.15. Upstream commit: https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc867605… The affected code is in io_uring/io_uring.c instead of io_uring/fdinfo.c for v5.15. So the patch applies the same change to io_uring/io_uring.c. Thanks! He Jens Axboe (1): io_uring/fdinfo: lock SQ thread while retrieving thread cpu/pid io_uring/io_uring.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) -- 2.42.0.869.gea05f2083d-goog

2 years, 1 month

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[stable-4.19 PATCH] scsi: virtio_scsi: limit number of hw queues by nr_cpu_ids

by Kunkun Jiang

From: Dongli Zhang <dongli.zhang(a)oracle.com> [ Upstream commit 1978f30a87732d4d9072a20abeded9fe17884f1b ] When tag_set->nr_maps is 1, the block layer limits the number of hw queues by nr_cpu_ids. No matter how many hw queues are used by virtio-scsi, as it has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues. In addition, specifically for pci scenario, when the 'num_queues' specified by qemu is more than maxcpus, virtio-scsi would not be able to allocate more than maxcpus vectors in order to have a vector for each queue. As a result, it falls back into MSI-X with one vector for config and one shared for queues. Considering above reasons, this patch limits the number of hw queues used by virtio-scsi by nr_cpu_ids. Reviewed-by: Stefan Hajnoczi <stefanha(a)redhat.com> Signed-off-by: Dongli Zhang <dongli.zhang(a)oracle.com> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Kunkun Jiang <jiangkunkun(a)huawei.com> --- drivers/scsi/virtio_scsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 50e87823baab..0b45424e7ca5 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -853,6 +853,7 @@ static int virtscsi_probe(struct virtio_device *vdev) /* We need to know how many queues before we allocate. */ num_queues = virtscsi_config_get(vdev, num_queues) ? : 1; + num_queues = min_t(unsigned int, nr_cpu_ids, num_queues); num_targets = virtscsi_config_get(vdev, max_target) + 1; -- 2.33.0

2 years, 1 month

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FAILED: patch "[PATCH] drm/amdgpu: ungate power gating when system suspend" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 886b92f63573eab4ba30b06c4514b8f4af114e6a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112409-fructose-spry-be2c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 886b92f63573 ("drm/amdgpu: ungate power gating when system suspend") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 886b92f63573eab4ba30b06c4514b8f4af114e6a Mon Sep 17 00:00:00 2001 From: Perry Yuan <perry.yuan(a)amd.com> Date: Thu, 27 Jul 2023 01:45:30 -0400 Subject: [PATCH] drm/amdgpu: ungate power gating when system suspend [Why] During suspend, if GFX DPM is enabled and GFXOFF feature is enabled the system may get hung. So, it is suggested to disable GFXOFF feature during suspend and enable it after resume. [How] Update the code to disable GFXOFF feature during suspend and enable it after resume. [ 311.396526] amdgpu 0000:03:00.0: amdgpu: SMU: I'm not done with your previous command: SMN_C2PMSG_66:0x0000001E SMN_C2PMSG_82:0x00000000 [ 311.396530] amdgpu 0000:03:00.0: amdgpu: Fail to disable dpm features! [ 311.396531] [drm:amdgpu_device_ip_suspend_phase2 [amdgpu]] *ERROR* suspend of IP block <smu> failed -62 Acked-by: Yang Wang <kevinyang.wang(a)amd.com> Reviewed-by: Kenneth Feng <kenneth.feng(a)amd.com> Signed-off-by: Perry Yuan <perry.yuan(a)amd.com> Signed-off-by: Kun Liu <kun.liu2(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index dafb8cc1c684..c8a3bf01743f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -3498,6 +3498,8 @@ static void gfx_v10_0_ring_invalidate_tlbs(struct amdgpu_ring *ring, static void gfx_v10_0_update_spm_vmid_internal(struct amdgpu_device *adev, unsigned int vmid); +static int gfx_v10_0_set_powergating_state(void *handle, + enum amd_powergating_state state); static void gfx10_kiq_set_resources(struct amdgpu_ring *kiq_ring, uint64_t queue_mask) { amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_SET_RESOURCES, 6)); @@ -7179,6 +7181,13 @@ static int gfx_v10_0_hw_fini(void *handle) amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0); amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0); + /* WA added for Vangogh asic fixing the SMU suspend failure + * It needs to set power gating again during gfxoff control + * otherwise the gfxoff disallowing will be failed to set. + */ + if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(10, 3, 1)) + gfx_v10_0_set_powergating_state(handle, AMD_PG_STATE_UNGATE); + if (!adev->no_hw_access) { if (amdgpu_async_gfx_ring) { if (amdgpu_gfx_disable_kgq(adev, 0))

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Negate IPS allow and commit bits" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 5e8a0d3598b47ee5a57708072bdef08816264538 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112445-mutilator-landed-4578@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 5e8a0d3598b4 ("drm/amd/display: Negate IPS allow and commit bits") 92e11f0159f6 ("drm/amd/display: Enable more IPS options") da2d16fcdda3 ("drm/amd/display: Fix IPS handshake for idle optimizations") d591284288c2 ("drm/amd/display: Add a check for idle power optimization") d5f9a92bd1e2 ("drm/amd/display: Revert "Improve x86 and dmub ips handshake"") bf7951561051 ("drm/amd/display: reprogram det size while seamless boot") d0a767f7b8e2 ("drm/amd/display: Revert "drm/amd/display: Add a check for idle power optimization"") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5e8a0d3598b47ee5a57708072bdef08816264538 Mon Sep 17 00:00:00 2001 From: Duncan Ma <duncan.ma(a)amd.com> Date: Wed, 25 Oct 2023 19:07:21 -0400 Subject: [PATCH] drm/amd/display: Negate IPS allow and commit bits [WHY] On s0i3, IPS mask isn't saved and restored. It is reset to zero on exit. If it is cleared unexpectedly, driver will proceed operations while DCN is in IPS2 and cause a hang. [HOW] Negate the bit logic. Default value of zero indicates it is still in IPS2. Driver must poll for the bit to assert. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Duncan Ma <duncan.ma(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> 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 0fa4fcd00de2..507a7cf56711 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 @@ -820,22 +820,22 @@ static void dcn35_set_idle_state(struct clk_mgr *clk_mgr_base, bool allow_idle) if (dc->config.disable_ips == DMUB_IPS_ENABLE || dc->config.disable_ips == DMUB_IPS_DISABLE_DYNAMIC) { - val |= DMUB_IPS1_ALLOW_MASK; - val |= DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val = val & ~DMUB_IPS1_ALLOW_MASK; val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { - val |= DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val |= DMUB_IPS1_ALLOW_MASK; val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val = val & ~DMUB_IPS2_ALLOW_MASK; } if (!allow_idle) { - val = val & ~DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; + val |= DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; } dcn35_smu_write_ips_scratch(clk_mgr, val); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index d8f434738212..76b47f178127 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -4934,8 +4934,8 @@ bool dc_dmub_is_ips_idle_state(struct dc *dc) 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)) + if (!(idle_state & DMUB_IPS1_ALLOW_MASK) || + !(idle_state & DMUB_IPS2_ALLOW_MASK)) return true; return false; diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index e4c007203318..0e07699c1e83 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1202,11 +1202,11 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) allow_state = dc->hwss.get_idle_state(dc); dc->hwss.set_idle_state(dc, false); - if (allow_state & DMUB_IPS2_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS2_ALLOW_MASK)) { // Wait for evaluation time udelay(dc->debug.ips2_eval_delay_us); commit_state = dc->hwss.get_idle_state(dc); - if (commit_state & DMUB_IPS2_COMMIT_MASK) { + if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) { // Tell PMFW to exit low power state dc->clk_mgr->funcs->exit_low_power_state(dc->clk_mgr); @@ -1216,7 +1216,7 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) + if (commit_state & DMUB_IPS2_COMMIT_MASK) break; udelay(1); @@ -1235,10 +1235,10 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) } dc_dmub_srv_notify_idle(dc, false); - if (allow_state & DMUB_IPS1_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS1_ALLOW_MASK)) { for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS1_COMMIT_MASK)) + if (commit_state & DMUB_IPS1_COMMIT_MASK) break; udelay(1);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Negate IPS allow and commit bits" failed to apply to 6.5-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.5-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.5.y git checkout FETCH_HEAD git cherry-pick -x 5e8a0d3598b47ee5a57708072bdef08816264538 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112444-virus-dotted-b387@gregkh' --subject-prefix 'PATCH 6.5.y' HEAD^.. Possible dependencies: 5e8a0d3598b4 ("drm/amd/display: Negate IPS allow and commit bits") 92e11f0159f6 ("drm/amd/display: Enable more IPS options") da2d16fcdda3 ("drm/amd/display: Fix IPS handshake for idle optimizations") d591284288c2 ("drm/amd/display: Add a check for idle power optimization") d5f9a92bd1e2 ("drm/amd/display: Revert "Improve x86 and dmub ips handshake"") bf7951561051 ("drm/amd/display: reprogram det size while seamless boot") d0a767f7b8e2 ("drm/amd/display: Revert "drm/amd/display: Add a check for idle power optimization"") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5e8a0d3598b47ee5a57708072bdef08816264538 Mon Sep 17 00:00:00 2001 From: Duncan Ma <duncan.ma(a)amd.com> Date: Wed, 25 Oct 2023 19:07:21 -0400 Subject: [PATCH] drm/amd/display: Negate IPS allow and commit bits [WHY] On s0i3, IPS mask isn't saved and restored. It is reset to zero on exit. If it is cleared unexpectedly, driver will proceed operations while DCN is in IPS2 and cause a hang. [HOW] Negate the bit logic. Default value of zero indicates it is still in IPS2. Driver must poll for the bit to assert. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Duncan Ma <duncan.ma(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> 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 0fa4fcd00de2..507a7cf56711 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 @@ -820,22 +820,22 @@ static void dcn35_set_idle_state(struct clk_mgr *clk_mgr_base, bool allow_idle) if (dc->config.disable_ips == DMUB_IPS_ENABLE || dc->config.disable_ips == DMUB_IPS_DISABLE_DYNAMIC) { - val |= DMUB_IPS1_ALLOW_MASK; - val |= DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val = val & ~DMUB_IPS1_ALLOW_MASK; val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { - val |= DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val |= DMUB_IPS1_ALLOW_MASK; val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val = val & ~DMUB_IPS2_ALLOW_MASK; } if (!allow_idle) { - val = val & ~DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; + val |= DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; } dcn35_smu_write_ips_scratch(clk_mgr, val); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index d8f434738212..76b47f178127 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -4934,8 +4934,8 @@ bool dc_dmub_is_ips_idle_state(struct dc *dc) 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)) + if (!(idle_state & DMUB_IPS1_ALLOW_MASK) || + !(idle_state & DMUB_IPS2_ALLOW_MASK)) return true; return false; diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index e4c007203318..0e07699c1e83 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1202,11 +1202,11 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) allow_state = dc->hwss.get_idle_state(dc); dc->hwss.set_idle_state(dc, false); - if (allow_state & DMUB_IPS2_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS2_ALLOW_MASK)) { // Wait for evaluation time udelay(dc->debug.ips2_eval_delay_us); commit_state = dc->hwss.get_idle_state(dc); - if (commit_state & DMUB_IPS2_COMMIT_MASK) { + if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) { // Tell PMFW to exit low power state dc->clk_mgr->funcs->exit_low_power_state(dc->clk_mgr); @@ -1216,7 +1216,7 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) + if (commit_state & DMUB_IPS2_COMMIT_MASK) break; udelay(1); @@ -1235,10 +1235,10 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) } dc_dmub_srv_notify_idle(dc, false); - if (allow_state & DMUB_IPS1_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS1_ALLOW_MASK)) { for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS1_COMMIT_MASK)) + if (commit_state & DMUB_IPS1_COMMIT_MASK) break; udelay(1);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Negate IPS allow and commit bits" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 5e8a0d3598b47ee5a57708072bdef08816264538 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112443-poplar-panhandle-d98f@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 5e8a0d3598b4 ("drm/amd/display: Negate IPS allow and commit bits") 92e11f0159f6 ("drm/amd/display: Enable more IPS options") da2d16fcdda3 ("drm/amd/display: Fix IPS handshake for idle optimizations") d591284288c2 ("drm/amd/display: Add a check for idle power optimization") d5f9a92bd1e2 ("drm/amd/display: Revert "Improve x86 and dmub ips handshake"") bf7951561051 ("drm/amd/display: reprogram det size while seamless boot") d0a767f7b8e2 ("drm/amd/display: Revert "drm/amd/display: Add a check for idle power optimization"") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") 2358ecdabe37 ("drm/amd/display: 3.2.254") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5e8a0d3598b47ee5a57708072bdef08816264538 Mon Sep 17 00:00:00 2001 From: Duncan Ma <duncan.ma(a)amd.com> Date: Wed, 25 Oct 2023 19:07:21 -0400 Subject: [PATCH] drm/amd/display: Negate IPS allow and commit bits [WHY] On s0i3, IPS mask isn't saved and restored. It is reset to zero on exit. If it is cleared unexpectedly, driver will proceed operations while DCN is in IPS2 and cause a hang. [HOW] Negate the bit logic. Default value of zero indicates it is still in IPS2. Driver must poll for the bit to assert. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Duncan Ma <duncan.ma(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> 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 0fa4fcd00de2..507a7cf56711 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 @@ -820,22 +820,22 @@ static void dcn35_set_idle_state(struct clk_mgr *clk_mgr_base, bool allow_idle) if (dc->config.disable_ips == DMUB_IPS_ENABLE || dc->config.disable_ips == DMUB_IPS_DISABLE_DYNAMIC) { - val |= DMUB_IPS1_ALLOW_MASK; - val |= DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val = val & ~DMUB_IPS1_ALLOW_MASK; val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { - val |= DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; - } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS1) { val |= DMUB_IPS1_ALLOW_MASK; val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; + } else if (dc->config.disable_ips == DMUB_IPS_DISABLE_IPS2_Z10) { + val = val & ~DMUB_IPS1_ALLOW_MASK; + val = val & ~DMUB_IPS2_ALLOW_MASK; } if (!allow_idle) { - val = val & ~DMUB_IPS1_ALLOW_MASK; - val = val & ~DMUB_IPS2_ALLOW_MASK; + val |= DMUB_IPS1_ALLOW_MASK; + val |= DMUB_IPS2_ALLOW_MASK; } dcn35_smu_write_ips_scratch(clk_mgr, val); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index d8f434738212..76b47f178127 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -4934,8 +4934,8 @@ bool dc_dmub_is_ips_idle_state(struct dc *dc) 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)) + if (!(idle_state & DMUB_IPS1_ALLOW_MASK) || + !(idle_state & DMUB_IPS2_ALLOW_MASK)) return true; return false; diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index e4c007203318..0e07699c1e83 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1202,11 +1202,11 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) allow_state = dc->hwss.get_idle_state(dc); dc->hwss.set_idle_state(dc, false); - if (allow_state & DMUB_IPS2_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS2_ALLOW_MASK)) { // Wait for evaluation time udelay(dc->debug.ips2_eval_delay_us); commit_state = dc->hwss.get_idle_state(dc); - if (commit_state & DMUB_IPS2_COMMIT_MASK) { + if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) { // Tell PMFW to exit low power state dc->clk_mgr->funcs->exit_low_power_state(dc->clk_mgr); @@ -1216,7 +1216,7 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS2_COMMIT_MASK)) + if (commit_state & DMUB_IPS2_COMMIT_MASK) break; udelay(1); @@ -1235,10 +1235,10 @@ void dc_dmub_srv_exit_low_power_state(const struct dc *dc) } dc_dmub_srv_notify_idle(dc, false); - if (allow_state & DMUB_IPS1_ALLOW_MASK) { + if (!(allow_state & DMUB_IPS1_ALLOW_MASK)) { for (i = 0; i < max_num_polls; ++i) { commit_state = dc->hwss.get_idle_state(dc); - if (!(commit_state & DMUB_IPS1_COMMIT_MASK)) + if (commit_state & DMUB_IPS1_COMMIT_MASK) break; udelay(1);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Fix encoder disable logic" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 0ee057e66c4b782809a0a9265cdac5542e646706 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112432-schilling-murkiness-4092@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 0ee057e66c4b ("drm/amd/display: Fix encoder disable logic") e0b394a87a11 ("drm/amd/display: Add DCN35 DIO") 25879d7b4986 ("drm/amd/display: Clean FPGA code in dc") 7b1b3f5818c3 ("drm/amd/display: update dig enable sequence") 98ce7d32e215 ("drm/amd/display: convert link.h functions to function pointer style") 22f1482aff4a ("drm/amd/display: add sysfs entry to read PSR residency from firmware") c186c13e6528 ("drm/amd/display: Drop unnecessary DCN guards") 788c6e2ce5c7 ("drm/amd/display: replace all dc_link function call in link with link functions") 202a3816f37e ("drm/amd/display: move dc_link functions in protocols folder to dc_link_exports") 6455cb522191 ("drm/amd/display: link link_dp_dpia_bw.o in makefile") 76f5dc40ebb1 ("drm/amd/display: move dc_link functions in link root folder to dc_link_exports") 36516001a7c9 ("drm/amd/display: move dc_link functions in accessories folder to dc_link_exports") 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") aee0c07a74d3 ("drm/amd/display: Unify DC logging for BW Alloc") 7ae1dbe6547c ("drm/amd/display: merge dc_link.h into dc.h and dc_types.h") 1099238b966e ("drm/amd/display: Update BW ALLOCATION Function declaration") a06d565b4a1c ("drm/amd/display: Allocation at stream Enable") c32699caeca8 ("drm/amd/display: Updating Video Format Fall Back Policy.") c69fc3d0de6c ("drm/amd/display: Reduce CPU busy-waiting for long delays") 455ad25997ba ("drm/amdgpu: Select DRM_DISPLAY_HDCP_HELPER in amdgpu") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0ee057e66c4b782809a0a9265cdac5542e646706 Mon Sep 17 00:00:00 2001 From: Nicholas Susanto <nicholas.susanto(a)amd.com> Date: Wed, 1 Nov 2023 15:30:10 -0400 Subject: [PATCH] drm/amd/display: Fix encoder disable logic [WHY] DENTIST hangs when OTG is off and encoder is on. We were not disabling the encoder properly when switching from extended mode to external monitor only. [HOW] Disable the encoder using an existing enable/disable fifo helper instead of enc35_stream_encoder_enable. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Nicholas Susanto <nicholas.susanto(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c index 001f9eb66920..62a8f0b56006 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c @@ -261,12 +261,6 @@ static void enc35_stream_encoder_enable( /* invalid mode ! */ ASSERT_CRITICAL(false); } - - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); - } else { - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } } @@ -436,6 +430,8 @@ static void enc35_disable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_ENABLE, 0); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } static void enc35_enable_fifo(struct stream_encoder *enc) @@ -443,6 +439,8 @@ static void enc35_enable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_READ_START_LEVEL, 0x7); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); enc35_reset_fifo(enc, true); enc35_reset_fifo(enc, false);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Fix encoder disable logic" failed to apply to 6.5-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.5-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.5.y git checkout FETCH_HEAD git cherry-pick -x 0ee057e66c4b782809a0a9265cdac5542e646706 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112432-yelp-squint-50c2@gregkh' --subject-prefix 'PATCH 6.5.y' HEAD^.. Possible dependencies: 0ee057e66c4b ("drm/amd/display: Fix encoder disable logic") e0b394a87a11 ("drm/amd/display: Add DCN35 DIO") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0ee057e66c4b782809a0a9265cdac5542e646706 Mon Sep 17 00:00:00 2001 From: Nicholas Susanto <nicholas.susanto(a)amd.com> Date: Wed, 1 Nov 2023 15:30:10 -0400 Subject: [PATCH] drm/amd/display: Fix encoder disable logic [WHY] DENTIST hangs when OTG is off and encoder is on. We were not disabling the encoder properly when switching from extended mode to external monitor only. [HOW] Disable the encoder using an existing enable/disable fifo helper instead of enc35_stream_encoder_enable. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Nicholas Susanto <nicholas.susanto(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c index 001f9eb66920..62a8f0b56006 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c @@ -261,12 +261,6 @@ static void enc35_stream_encoder_enable( /* invalid mode ! */ ASSERT_CRITICAL(false); } - - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); - } else { - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } } @@ -436,6 +430,8 @@ static void enc35_disable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_ENABLE, 0); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } static void enc35_enable_fifo(struct stream_encoder *enc) @@ -443,6 +439,8 @@ static void enc35_enable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_READ_START_LEVEL, 0x7); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); enc35_reset_fifo(enc, true); enc35_reset_fifo(enc, false);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Fix encoder disable logic" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 0ee057e66c4b782809a0a9265cdac5542e646706 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112431-saga-deflector-404c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 0ee057e66c4b ("drm/amd/display: Fix encoder disable logic") e0b394a87a11 ("drm/amd/display: Add DCN35 DIO") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0ee057e66c4b782809a0a9265cdac5542e646706 Mon Sep 17 00:00:00 2001 From: Nicholas Susanto <nicholas.susanto(a)amd.com> Date: Wed, 1 Nov 2023 15:30:10 -0400 Subject: [PATCH] drm/amd/display: Fix encoder disable logic [WHY] DENTIST hangs when OTG is off and encoder is on. We were not disabling the encoder properly when switching from extended mode to external monitor only. [HOW] Disable the encoder using an existing enable/disable fifo helper instead of enc35_stream_encoder_enable. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Nicholas Susanto <nicholas.susanto(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c index 001f9eb66920..62a8f0b56006 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dio_stream_encoder.c @@ -261,12 +261,6 @@ static void enc35_stream_encoder_enable( /* invalid mode ! */ ASSERT_CRITICAL(false); } - - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); - } else { - REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); - REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } } @@ -436,6 +430,8 @@ static void enc35_disable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_ENABLE, 0); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 0); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 0); } static void enc35_enable_fifo(struct stream_encoder *enc) @@ -443,6 +439,8 @@ static void enc35_enable_fifo(struct stream_encoder *enc) struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_READ_START_LEVEL, 0x7); + REG_UPDATE(DIG_FE_CLK_CNTL, DIG_FE_CLK_EN, 1); + REG_UPDATE(DIG_FE_EN_CNTL, DIG_FE_ENABLE, 1); enc35_reset_fifo(enc, true); enc35_reset_fifo(enc, false);

2 years, 1 month

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FAILED: patch "[PATCH] drm/amd/display: Add null checks for 8K60 lightup" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 9725a4f9eb495bfa6c7f5ccdb49440ff06dba0a1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023112421-thaw-pointless-984f@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 9725a4f9eb49 ("drm/amd/display: Add null checks for 8K60 lightup") 051d90070d4c ("drm/amd/display: Refactor DPG test pattern logic for ODM cases") ddd5298c63e4 ("drm/amd/display: Update cursor limits based on SW cursor fallback limits") 13c0e836316a ("drm/amd/display: Adjust code style for hw_sequencer.h") 1288d7020809 ("drm/amd/display: Improve x86 and dmub ips handshake") c0f8b83188c7 ("drm/amd/display: disable IPS") 93a66cef607c ("drm/amd/display: Add IPS control flag") dc01c4b79bfe ("drm/amd/display: Update driver and IPS interop") e87a6c5b7780 ("drm/amd/display: Blank phantom OTG before enabling") 0fa45b6aeae4 ("drm/amd/display: Add DCN35 Resource") ec129fa356be ("drm/amd/display: Add DCN35 init") 65138eb72e1f ("drm/amd/display: Add DCN35 DMUB") 8774029f76b9 ("drm/amd/display: Add DCN35 CLK_MGR") 6f8b7565cca4 ("drm/amd/display: Add DCN35 HWSEQ") 920f879c8360 ("drm/amd/display: Add DCN35 PG_CNTL") fb8c3ef80584 ("drm/amd/display: Update dc.h for DCN35 support") 5e77c339a291 ("drm/amd/display: Skip dmub memory flush when not needed") 3001e6d1dedc ("drm/amd/display: Add support for 1080p SubVP to reduce idle power") 0b9dc439f404 ("drm/amd/display: Write flip addr to scratch reg for subvp") 96182df99dad ("drm/amd/display: Enable runtime register offset init for DCN32 DMUB") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9725a4f9eb495bfa6c7f5ccdb49440ff06dba0a1 Mon Sep 17 00:00:00 2001 From: Muhammad Ahmed <ahmed.ahmed(a)amd.com> Date: Tue, 31 Oct 2023 16:03:21 -0400 Subject: [PATCH] drm/amd/display: Add null checks for 8K60 lightup [WHY & HOW] Add some null checks to fix an issue where 8k60 tiled display fails to light up. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Muhammad Ahmed <ahmed.ahmed(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 7b9bf5cb4529..d8f434738212 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -3178,7 +3178,7 @@ static bool update_planes_and_stream_state(struct dc *dc, struct pipe_ctx *otg_master = resource_get_otg_master_for_stream(&context->res_ctx, context->streams[i]); - if (otg_master->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE) + if (otg_master && otg_master->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE) resource_build_test_pattern_params(&context->res_ctx, otg_master); } } diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 1d48278cba96..a1f1d1003992 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -5190,6 +5190,9 @@ bool dc_resource_acquire_secondary_pipe_for_mpc_odm_legacy( sec_next = sec_pipe->next_odm_pipe; sec_prev = sec_pipe->prev_odm_pipe; + if (pri_pipe == NULL) + return false; + *sec_pipe = *pri_pipe; sec_pipe->top_pipe = sec_top;

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Linux-stable-mirror November 2023