August 2024 - Linux-stable-mirror

[PATCH AUTOSEL 5.10 01/38] drm/amdgpu: fix overflowed array index read warning

by Sasha Levin

From: Tim Huang <Tim.Huang(a)amd.com> [ Upstream commit ebbc2ada5c636a6a63d8316a3408753768f5aa9f ] Clear overflowed array index read warning by cast operation. Signed-off-by: Tim Huang <Tim.Huang(a)amd.com> Reviewed-by: Alex Deucher <alexander.deucher(a)amd.com> Reviewed-by: Christian König <christian.koenig(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index 15ee13c3bd9e1..6976f61be7341 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -368,8 +368,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_ring *ring = file_inode(f)->i_private; - int r, i; uint32_t value, result, early[3]; + loff_t i; + int r; if (*pos & 3 || size & 3) return -EINVAL; -- 2.43.0

1 year, 1 month

3
40
0 0

FAILED: patch "[PATCH] ksmbd: fix race condition between destroy_previous_session()" failed to apply to 6.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.10-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-6.10.y git checkout FETCH_HEAD git cherry-pick -x 76e98a158b207771a6c9a0de0a60522a446a3447 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024082625-savior-clinic-1a91@gregkh' --subject-prefix 'PATCH 6.10.y' HEAD^.. Possible dependencies: 76e98a158b20 ("ksmbd: fix race condition between destroy_previous_session() and smb2 operations()") d484d621d40f ("ksmbd: add durable scavenger timer") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 76e98a158b207771a6c9a0de0a60522a446a3447 Mon Sep 17 00:00:00 2001 From: Namjae Jeon <linkinjeon(a)kernel.org> Date: Sat, 17 Aug 2024 14:03:49 +0900 Subject: [PATCH] ksmbd: fix race condition between destroy_previous_session() and smb2 operations() If there is ->PreviousSessionId field in the session setup request, The session of the previous connection should be destroyed. During this, if the smb2 operation requests in the previous session are being processed, a racy issue could happen with ksmbd_destroy_file_table(). This patch sets conn->status to KSMBD_SESS_NEED_RECONNECT to block incoming operations and waits until on-going operations are complete (i.e. idle) before desctorying the previous session. Fixes: c8efcc786146 ("ksmbd: add support for durable handles v1/v2") Cc: stable(a)vger.kernel.org # v6.6+ Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-25040 Signed-off-by: Namjae Jeon <linkinjeon(a)kernel.org> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/server/connection.c b/fs/smb/server/connection.c index 09e1e7771592..7889df8112b4 100644 --- a/fs/smb/server/connection.c +++ b/fs/smb/server/connection.c @@ -165,11 +165,43 @@ void ksmbd_all_conn_set_status(u64 sess_id, u32 status) up_read(&conn_list_lock); } -void ksmbd_conn_wait_idle(struct ksmbd_conn *conn, u64 sess_id) +void ksmbd_conn_wait_idle(struct ksmbd_conn *conn) { wait_event(conn->req_running_q, atomic_read(&conn->req_running) < 2); } +int ksmbd_conn_wait_idle_sess_id(struct ksmbd_conn *curr_conn, u64 sess_id) +{ + struct ksmbd_conn *conn; + int rc, retry_count = 0, max_timeout = 120; + int rcount = 1; + +retry_idle: + if (retry_count >= max_timeout) + return -EIO; + + down_read(&conn_list_lock); + list_for_each_entry(conn, &conn_list, conns_list) { + if (conn->binding || xa_load(&conn->sessions, sess_id)) { + if (conn == curr_conn) + rcount = 2; + if (atomic_read(&conn->req_running) >= rcount) { + rc = wait_event_timeout(conn->req_running_q, + atomic_read(&conn->req_running) < rcount, + HZ); + if (!rc) { + up_read(&conn_list_lock); + retry_count++; + goto retry_idle; + } + } + } + } + up_read(&conn_list_lock); + + return 0; +} + int ksmbd_conn_write(struct ksmbd_work *work) { struct ksmbd_conn *conn = work->conn; diff --git a/fs/smb/server/connection.h b/fs/smb/server/connection.h index 5c2845e47cf2..5b947175c048 100644 --- a/fs/smb/server/connection.h +++ b/fs/smb/server/connection.h @@ -145,7 +145,8 @@ extern struct list_head conn_list; extern struct rw_semaphore conn_list_lock; bool ksmbd_conn_alive(struct ksmbd_conn *conn); -void ksmbd_conn_wait_idle(struct ksmbd_conn *conn, u64 sess_id); +void ksmbd_conn_wait_idle(struct ksmbd_conn *conn); +int ksmbd_conn_wait_idle_sess_id(struct ksmbd_conn *curr_conn, u64 sess_id); struct ksmbd_conn *ksmbd_conn_alloc(void); void ksmbd_conn_free(struct ksmbd_conn *conn); bool ksmbd_conn_lookup_dialect(struct ksmbd_conn *c); diff --git a/fs/smb/server/mgmt/user_session.c b/fs/smb/server/mgmt/user_session.c index 162a12685d2c..99416ce9f501 100644 --- a/fs/smb/server/mgmt/user_session.c +++ b/fs/smb/server/mgmt/user_session.c @@ -311,6 +311,7 @@ void destroy_previous_session(struct ksmbd_conn *conn, { struct ksmbd_session *prev_sess; struct ksmbd_user *prev_user; + int err; down_write(&sessions_table_lock); down_write(&conn->session_lock); @@ -325,8 +326,16 @@ void destroy_previous_session(struct ksmbd_conn *conn, memcmp(user->passkey, prev_user->passkey, user->passkey_sz)) goto out; + ksmbd_all_conn_set_status(id, KSMBD_SESS_NEED_RECONNECT); + err = ksmbd_conn_wait_idle_sess_id(conn, id); + if (err) { + ksmbd_all_conn_set_status(id, KSMBD_SESS_NEED_NEGOTIATE); + goto out; + } + ksmbd_destroy_file_table(&prev_sess->file_table); prev_sess->state = SMB2_SESSION_EXPIRED; + ksmbd_all_conn_set_status(id, KSMBD_SESS_NEED_NEGOTIATE); ksmbd_launch_ksmbd_durable_scavenger(); out: up_write(&conn->session_lock); diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 3f4c56a10a86..cb7f487c96af 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -2213,7 +2213,7 @@ int smb2_session_logoff(struct ksmbd_work *work) ksmbd_conn_unlock(conn); ksmbd_close_session_fds(work); - ksmbd_conn_wait_idle(conn, sess_id); + ksmbd_conn_wait_idle(conn); /* * Re-lookup session to validate if session is deleted

1 year, 1 month

3
2
0 0

[PATCH stable 6.10 1/2] bpf: Fix a kernel verifier crash in stacksafe()

by Shung-Hsi Yu

From: Yonghong Song <yonghong.song(a)linux.dev> [ Upstream commit bed2eb964c70b780fb55925892a74f26cb590b25 ] Daniel Hodges reported a kernel verifier crash when playing with sched-ext. Further investigation shows that the crash is due to invalid memory access in stacksafe(). More specifically, it is the following code: if (exact != NOT_EXACT && old->stack[spi].slot_type[i % BPF_REG_SIZE] != cur->stack[spi].slot_type[i % BPF_REG_SIZE]) return false; The 'i' iterates old->allocated_stack. If cur->allocated_stack < old->allocated_stack the out-of-bound access will happen. To fix the issue add 'i >= cur->allocated_stack' check such that if the condition is true, stacksafe() should fail. Otherwise, cur->stack[spi].slot_type[i % BPF_REG_SIZE] memory access is legal. Fixes: 2793a8b015f7 ("bpf: exact states comparison for iterator convergence checks") Cc: Eduard Zingerman <eddyz87(a)gmail.com> Reported-by: Daniel Hodges <hodgesd(a)meta.com> Acked-by: Eduard Zingerman <eddyz87(a)gmail.com> Signed-off-by: Yonghong Song <yonghong.song(a)linux.dev> Link: https://lore.kernel.org/r/20240812214847.213612-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Shung-Hsi Yu <shung-hsi.yu(a)suse.com> --- I see this patch itself was already picked up[1] by Sasha. This thread additional includes the associated selftest that was sent in the same series (not entirely sure if backporting selftest goes against the stable backporting rule though). 1: https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/com… --- kernel/bpf/verifier.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index a8845cc299fe..521bd7efae03 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -16881,8 +16881,9 @@ static bool stacksafe(struct bpf_verifier_env *env, struct bpf_func_state *old, spi = i / BPF_REG_SIZE; if (exact != NOT_EXACT && - old->stack[spi].slot_type[i % BPF_REG_SIZE] != - cur->stack[spi].slot_type[i % BPF_REG_SIZE]) + (i >= cur->allocated_stack || + old->stack[spi].slot_type[i % BPF_REG_SIZE] != + cur->stack[spi].slot_type[i % BPF_REG_SIZE])) return false; if (!(old->stack[spi].spilled_ptr.live & REG_LIVE_READ) -- 2.46.0

1 year, 1 month

2
2
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VCN power consumption improvement for 6.10.y

by Mario Limonciello

Hi, The following patches in 6.11-rc1 help VCN power consumption on a lot of modern products. Can we please take then to 6.10.y so more people can get the power savings? commit ecfa23c8df7e ("drm/amdgpu/vcn: identify unified queue in sw init") commit 7d75ef3736a0 ("drm/amdgpu/vcn: not pause dpg for unified queue") I've also sent out backports to both 6.6.y and 6.1.y separately. Thanks!

1 year, 1 month

2
1
0 0

[PATCH AUTOSEL 5.15 01/47] drm/amd/display: Assign linear_pitch_alignment even for VM

by Sasha Levin

From: Alvin Lee <alvin.lee2(a)amd.com> [ Upstream commit 984debc133efa05e62f5aa1a7a1dd8ca0ef041f4 ] [Description] Assign linear_pitch_alignment so we don't cause a divide by 0 error in VM environments Reviewed-by: Sohaib Nadeem <sohaib.nadeem(a)amd.com> Acked-by: Wayne Lin <wayne.lin(a)amd.com> Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index ef151a1bc31cd..12e4beca5e840 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1107,6 +1107,7 @@ struct dc *dc_create(const struct dc_init_data *init_params) return NULL; if (init_params->dce_environment == DCE_ENV_VIRTUAL_HW) { + dc->caps.linear_pitch_alignment = 64; if (!dc_construct_ctx(dc, init_params)) goto destruct_dc; } else { -- 2.43.0

1 year, 1 month

2
47
0 0

[PATCH AUTOSEL 6.10 001/121] drm/amd/display: Enable RCO for PHYSYMCLK in DCN35

by Sasha Levin

From: Daniel Miess <daniel.miess(a)amd.com> [ Upstream commit f2303026a5b6327247ba61152d00199b2d1be294 ] [Why & How] Enable root clock optimization for PHYSYMCLK and only disable it when it's actively being used v2: Fix array-index-out-of-bounds in dcn35_calc_blocks_to_gate Reviewed-by: Roman Li <roman.li(a)amd.com> Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Acked-by: Wayne Lin <wayne.lin(a)amd.com> Signed-off-by: Daniel Miess <daniel.miess(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + .../gpu/drm/amd/display/dc/dcn35/dcn35_dccg.c | 45 ------------------- .../amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 32 +++++++++++++ .../amd/display/dc/hwss/dcn35/dcn35_hwseq.h | 2 + .../amd/display/dc/hwss/dcn35/dcn35_init.c | 1 + .../amd/display/dc/hwss/dcn351/dcn351_init.c | 1 + .../display/dc/hwss/hw_sequencer_private.h | 4 ++ 7 files changed, 41 insertions(+), 45 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 3c33c3bcbe2cb..fe0025f2167fa 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -701,6 +701,7 @@ enum pg_hw_pipe_resources { PG_OPTC, PG_DPSTREAM, PG_HDMISTREAM, + PG_PHYSYMCLK, PG_HW_PIPE_RESOURCES_NUM_ELEMENT }; diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dccg.c index 58dd3c5bbff09..024dcf3057a05 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dccg.c +++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dccg.c @@ -451,32 +451,22 @@ static void dccg35_set_physymclk_root_clock_gating( case 0: REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, PHYASYMCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYA_REFCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); break; case 1: REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, PHYBSYMCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYB_REFCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); break; case 2: REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, PHYCSYMCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYC_REFCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); break; case 3: REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, PHYDSYMCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYD_REFCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); break; case 4: REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, PHYESYMCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYE_REFCLK_ROOT_GATE_DISABLE, enable ? 1 : 0); break; default: BREAK_TO_DEBUGGER(); @@ -499,16 +489,10 @@ static void dccg35_set_physymclk( REG_UPDATE_2(PHYASYMCLK_CLOCK_CNTL, PHYASYMCLK_EN, 1, PHYASYMCLK_SRC_SEL, clk_src); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYA_REFCLK_ROOT_GATE_DISABLE, 0); } else { REG_UPDATE_2(PHYASYMCLK_CLOCK_CNTL, PHYASYMCLK_EN, 0, PHYASYMCLK_SRC_SEL, 0); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYA_REFCLK_ROOT_GATE_DISABLE, 1); } break; case 1: @@ -516,16 +500,10 @@ static void dccg35_set_physymclk( REG_UPDATE_2(PHYBSYMCLK_CLOCK_CNTL, PHYBSYMCLK_EN, 1, PHYBSYMCLK_SRC_SEL, clk_src); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYB_REFCLK_ROOT_GATE_DISABLE, 0); } else { REG_UPDATE_2(PHYBSYMCLK_CLOCK_CNTL, PHYBSYMCLK_EN, 0, PHYBSYMCLK_SRC_SEL, 0); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYB_REFCLK_ROOT_GATE_DISABLE, 1); } break; case 2: @@ -533,16 +511,10 @@ static void dccg35_set_physymclk( REG_UPDATE_2(PHYCSYMCLK_CLOCK_CNTL, PHYCSYMCLK_EN, 1, PHYCSYMCLK_SRC_SEL, clk_src); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYC_REFCLK_ROOT_GATE_DISABLE, 0); } else { REG_UPDATE_2(PHYCSYMCLK_CLOCK_CNTL, PHYCSYMCLK_EN, 0, PHYCSYMCLK_SRC_SEL, 0); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYC_REFCLK_ROOT_GATE_DISABLE, 1); } break; case 3: @@ -550,16 +522,10 @@ static void dccg35_set_physymclk( REG_UPDATE_2(PHYDSYMCLK_CLOCK_CNTL, PHYDSYMCLK_EN, 1, PHYDSYMCLK_SRC_SEL, clk_src); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYD_REFCLK_ROOT_GATE_DISABLE, 0); } else { REG_UPDATE_2(PHYDSYMCLK_CLOCK_CNTL, PHYDSYMCLK_EN, 0, PHYDSYMCLK_SRC_SEL, 0); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYD_REFCLK_ROOT_GATE_DISABLE, 1); } break; case 4: @@ -567,16 +533,10 @@ static void dccg35_set_physymclk( REG_UPDATE_2(PHYESYMCLK_CLOCK_CNTL, PHYESYMCLK_EN, 1, PHYESYMCLK_SRC_SEL, clk_src); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYE_REFCLK_ROOT_GATE_DISABLE, 0); } else { REG_UPDATE_2(PHYESYMCLK_CLOCK_CNTL, PHYESYMCLK_EN, 0, PHYESYMCLK_SRC_SEL, 0); -// if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) -// REG_UPDATE(DCCG_GATE_DISABLE_CNTL4, -// PHYE_REFCLK_ROOT_GATE_DISABLE, 1); } break; default: @@ -714,11 +674,6 @@ void dccg35_init(struct dccg *dccg) dccg35_set_dpstreamclk_root_clock_gating(dccg, otg_inst, false); } - if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) - for (otg_inst = 0; otg_inst < 5; otg_inst++) - dccg35_set_physymclk_root_clock_gating(dccg, otg_inst, - false); - if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpp) for (otg_inst = 0; otg_inst < 4; otg_inst++) dccg35_set_dppclk_root_clock_gating(dccg, otg_inst, 0); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c index dcced89c07b38..5f60da72c6f58 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c @@ -506,6 +506,17 @@ void dcn35_dpstream_root_clock_control(struct dce_hwseq *hws, unsigned int dp_hp } } +void dcn35_physymclk_root_clock_control(struct dce_hwseq *hws, unsigned int phy_inst, bool clock_on) +{ + if (!hws->ctx->dc->debug.root_clock_optimization.bits.physymclk) + return; + + if (hws->ctx->dc->res_pool->dccg->funcs->set_physymclk_root_clock_gating) { + hws->ctx->dc->res_pool->dccg->funcs->set_physymclk_root_clock_gating( + hws->ctx->dc->res_pool->dccg, phy_inst, clock_on); + } +} + void dcn35_dsc_pg_control( struct dce_hwseq *hws, unsigned int dsc_inst, @@ -1041,6 +1052,13 @@ void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context, if (pipe_ctx->stream_res.hpo_dp_stream_enc) update_state->pg_pipe_res_update[PG_DPSTREAM][pipe_ctx->stream_res.hpo_dp_stream_enc->inst] = false; } + + for (i = 0; i < dc->link_count; i++) { + update_state->pg_pipe_res_update[PG_PHYSYMCLK][dc->links[i]->link_enc_hw_inst] = true; + if (dc->links[i]->type != dc_connection_none) + update_state->pg_pipe_res_update[PG_PHYSYMCLK][dc->links[i]->link_enc_hw_inst] = false; + } + /*domain24 controls all the otg, mpc, opp, as long as one otg is still up, avoid enabling OTG PG*/ for (i = 0; i < dc->res_pool->timing_generator_count; i++) { struct timing_generator *tg = dc->res_pool->timing_generators[i]; @@ -1138,6 +1156,10 @@ void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context, } } + for (i = 0; i < dc->link_count; i++) + if (dc->links[i]->type != dc_connection_none) + update_state->pg_pipe_res_update[PG_PHYSYMCLK][dc->links[i]->link_enc_hw_inst] = true; + for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++) { if (context->res_ctx.is_hpo_dp_stream_enc_acquired[i] && dc->res_pool->hpo_dp_stream_enc[i]) { @@ -1288,6 +1310,11 @@ void dcn35_root_clock_control(struct dc *dc, dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on); } + for (i = 0; i < dc->res_pool->dig_link_enc_count; i++) + if (update_state->pg_pipe_res_update[PG_PHYSYMCLK][i]) + if (dc->hwseq->funcs.physymclk_root_clock_control) + dc->hwseq->funcs.physymclk_root_clock_control(dc->hwseq, i, power_on); + } for (i = 0; i < dc->res_pool->res_cap->num_dsc; i++) { if (update_state->pg_pipe_res_update[PG_DSC][i]) { @@ -1313,6 +1340,11 @@ void dcn35_root_clock_control(struct dc *dc, dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on); } + for (i = 0; i < dc->res_pool->dig_link_enc_count; i++) + if (update_state->pg_pipe_res_update[PG_PHYSYMCLK][i]) + if (dc->hwseq->funcs.physymclk_root_clock_control) + dc->hwseq->funcs.physymclk_root_clock_control(dc->hwseq, i, power_on); + } } diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h index f0ea7d1511ae6..e27b3609020ff 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h @@ -39,6 +39,8 @@ void dcn35_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst, void dcn35_dpstream_root_clock_control(struct dce_hwseq *hws, unsigned int dp_hpo_inst, bool clock_on); +void dcn35_physymclk_root_clock_control(struct dce_hwseq *hws, unsigned int phy_inst, bool clock_on); + void dcn35_enable_power_gating_plane(struct dce_hwseq *hws, bool enable); void dcn35_set_dmu_fgcg(struct dce_hwseq *hws, bool enable); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c index 199781233fd5f..987e09d9246e4 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c @@ -148,6 +148,7 @@ static const struct hwseq_private_funcs dcn35_private_funcs = { .enable_power_gating_plane = dcn35_enable_power_gating_plane, .dpp_root_clock_control = dcn35_dpp_root_clock_control, .dpstream_root_clock_control = dcn35_dpstream_root_clock_control, + .physymclk_root_clock_control = dcn35_physymclk_root_clock_control, .program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree, .update_odm = dcn35_update_odm, .set_hdr_multiplier = dcn10_set_hdr_multiplier, diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c index a53092cd619b1..2e0d23ae8fee5 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c @@ -147,6 +147,7 @@ static const struct hwseq_private_funcs dcn351_private_funcs = { .enable_power_gating_plane = dcn35_enable_power_gating_plane, .dpp_root_clock_control = dcn35_dpp_root_clock_control, .dpstream_root_clock_control = dcn35_dpstream_root_clock_control, + .physymclk_root_clock_control = dcn35_physymclk_root_clock_control, .program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree, .update_odm = dcn35_update_odm, .set_hdr_multiplier = dcn10_set_hdr_multiplier, diff --git a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h index 341219cf41442..9553a7d34c3e9 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h +++ b/drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h @@ -124,6 +124,10 @@ struct hwseq_private_funcs { struct dce_hwseq *hws, unsigned int dpp_inst, bool clock_on); + void (*physymclk_root_clock_control)( + struct dce_hwseq *hws, + unsigned int phy_inst, + bool clock_on); void (*dpp_pg_control)(struct dce_hwseq *hws, unsigned int dpp_inst, bool power_on); -- 2.43.0

1 year, 1 month

3
122
0 0

[PATCH AUTOSEL 4.19 01/14] drm/amdgpu: fix overflowed array index read warning

by Sasha Levin

From: Tim Huang <Tim.Huang(a)amd.com> [ Upstream commit ebbc2ada5c636a6a63d8316a3408753768f5aa9f ] Clear overflowed array index read warning by cast operation. Signed-off-by: Tim Huang <Tim.Huang(a)amd.com> Reviewed-by: Alex Deucher <alexander.deucher(a)amd.com> Reviewed-by: Christian König <christian.koenig(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index 93794a85f83d8..d1efab2270340 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -497,8 +497,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_ring *ring = file_inode(f)->i_private; - int r, i; uint32_t value, result, early[3]; + loff_t i; + int r; if (*pos & 3 || size & 3) return -EINVAL; -- 2.43.0

1 year, 1 month

2
14
0 0

[git:media_stage/master] media: videobuf2: Drop minimum allocation requirement of 2 buffers

by Laurent Pinchart

This is an automatic generated email to let you know that the following patch were queued: Subject: media: videobuf2: Drop minimum allocation requirement of 2 buffers Author: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Date: Mon Aug 26 02:24:49 2024 +0300 When introducing the ability for drivers to indicate the minimum number of buffers they require an application to allocate, commit 6662edcd32cc ("media: videobuf2: Add min_reqbufs_allocation field to vb2_queue structure") also introduced a global minimum of 2 buffers. It turns out this breaks the Renesas R-Car VSP test suite, where a test that allocates a single buffer fails when two buffers are used. One may consider debatable whether test suite failures without failures in production use cases should be considered as a regression, but operation with a single buffer is a valid use case. While full frame rate can't be maintained, memory-to-memory devices can still be used with a decent efficiency, and requiring applications to allocate multiple buffers for single-shot use cases with capture devices would just waste memory. For those reasons, fix the regression by dropping the global minimum of buffers. Individual drivers can still set their own minimum. Fixes: 6662edcd32cc ("media: videobuf2: Add min_reqbufs_allocation field to vb2_queue structure") Cc: stable(a)vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Acked-by: Tomasz Figa <tfiga(a)chromium.org> Link: https://lore.kernel.org/r/20240825232449.25905-1-laurent.pinchart+renesas@i… Signed-off-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> drivers/media/common/videobuf2/videobuf2-core.c | 7 ------- 1 file changed, 7 deletions(-) --- diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 500a4e0c84ab..29a8d876e6c2 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -2632,13 +2632,6 @@ int vb2_core_queue_init(struct vb2_queue *q) if (WARN_ON(q->supports_requests && q->min_queued_buffers)) return -EINVAL; - /* - * The minimum requirement is 2: one buffer is used - * by the hardware while the other is being processed by userspace. - */ - if (q->min_reqbufs_allocation < 2) - q->min_reqbufs_allocation = 2; - /* * If the driver needs 'min_queued_buffers' in the queue before * calling start_streaming() then the minimum requirement is

1 year, 1 month

1
0
0 0

[PATCH] media: videobuf2: Drop minimum allocation requirement of 2 buffers

by Laurent Pinchart

When introducing the ability for drivers to indicate the minimum number of buffers they require an application to allocate, commit 6662edcd32cc ("media: videobuf2: Add min_reqbufs_allocation field to vb2_queue structure") also introduced a global minimum of 2 buffers. It turns out this breaks the Renesas R-Car VSP test suite, where a test that allocates a single buffer fails when two buffers are used. One may consider debatable whether test suite failures without failures in production use cases should be considered as a regression, but operation with a single buffer is a valid use case. While full frame rate can't be maintained, memory-to-memory devices can still be used with a decent efficiency, and requiring applications to allocate multiple buffers for single-shot use cases with capture devices would just waste memory. For those reasons, fix the regression by dropping the global minimum of buffers. Individual drivers can still set their own minimum. Fixes: 6662edcd32cc ("media: videobuf2: Add min_reqbufs_allocation field to vb2_queue structure") Cc: stable(a)vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> --- drivers/media/common/videobuf2/videobuf2-core.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 500a4e0c84ab..29a8d876e6c2 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -2632,13 +2632,6 @@ int vb2_core_queue_init(struct vb2_queue *q) if (WARN_ON(q->supports_requests && q->min_queued_buffers)) return -EINVAL; - /* - * The minimum requirement is 2: one buffer is used - * by the hardware while the other is being processed by userspace. - */ - if (q->min_reqbufs_allocation < 2) - q->min_reqbufs_allocation = 2; - /* * If the driver needs 'min_queued_buffers' in the queue before * calling start_streaming() then the minimum requirement is base-commit: a043ea54bbb975ca9239c69fd17f430488d33522 -- Regards, Laurent Pinchart

1 year, 1 month

4
5
0 0

[PATCH v5] EDAC/ti: Fix possible null pointer dereference in _emif_get_id()

by Ma Ke

In _emif_get_id(), of_get_address() may return NULL which is later dereferenced. Fix this bug by adding NULL check. Found by code review. Cc: stable(a)vger.kernel.org Fixes: 86a18ee21e5e ("EDAC, ti: Add support for TI keystone and DRA7xx EDAC") Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202408160935.A6QFliqt-lkp@intel.com/ Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- Changes in v5: - According to the developer's suggestion, added an inspection of function of_translate_address(). However, kernel test robot reported a build warning, so the inspection is removed here, reverting to the modification solution of patch v3. Changes in v4: - added the check of of_translate_address() as suggestions. Changes in v3: - added the patch operations omitted in PATCH v2 RESEND compared to PATCH v2. Sorry for my oversight. Changes in v2: - added Cc stable line. --- drivers/edac/ti_edac.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/edac/ti_edac.c b/drivers/edac/ti_edac.c index 29723c9592f7..6f3da8d99eab 100644 --- a/drivers/edac/ti_edac.c +++ b/drivers/edac/ti_edac.c @@ -207,6 +207,9 @@ static int _emif_get_id(struct device_node *node) int my_id = 0; addrp = of_get_address(node, 0, NULL, NULL); + if (!addrp) + return -EINVAL; + my_addr = (u32)of_translate_address(node, addrp); for_each_matching_node(np, ti_edac_of_match) { @@ -214,6 +217,9 @@ static int _emif_get_id(struct device_node *node) continue; addrp = of_get_address(np, 0, NULL, NULL); + if (!addrp) + return -EINVAL; + addr = (u32)of_translate_address(np, addrp); edac_printk(KERN_INFO, EDAC_MOD_NAME, -- 2.25.1

1 year, 1 month

2
1
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Linux-stable-mirror August 2024