August 2024 - Linux-stable-mirror

[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

8 months

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

8 months

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

8 months

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

8 months

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

8 months

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

8 months

2
1
0 0

[PATCH net v2] ionic: Prevent tx_timeout due to frequent doorbell ringing

by Brett Creeley

With recent work to the doorbell workaround code a small hole was introduced that could cause a tx_timeout. This happens if the rx dbell_deadline goes beyond the netdev watchdog timeout set by the driver (i.e. 2 seconds). Fix this by changing the netdev watchdog timeout to 5 seconds and reduce the max rx dbell_deadline to 4 seconds. The test that can reproduce the issue being fixed is a multi-queue send test via pktgen with the "burst" setting to 1. This causes the queue's doorbell to be rung on every packet sent to the driver, which may result in the device missing doorbells due to the high doorbell rate. Cc: stable(a)vger.kernel.org Fixes: 4ded136c78f8 ("ionic: add work item for missed-doorbell check") Signed-off-by: Brett Creeley <brett.creeley(a)amd.com> Reviewed-by: Shannon Nelson <shannon.nelson(a)amd.com> --- v2: - Drop budget == 0 patch to expedite getting this patch merged due to the budget == 0 patch being more complicated than we originally thought. v1: - https://lore.kernel.org/netdev/20240813234122.53083-1-brett.creeley@amd.com/ drivers/net/ethernet/pensando/ionic/ionic_dev.h | 2 +- drivers/net/ethernet/pensando/ionic/ionic_lif.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h index c647033f3ad2..f2f07bf88545 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h @@ -32,7 +32,7 @@ #define IONIC_ADMIN_DOORBELL_DEADLINE (HZ / 2) /* 500ms */ #define IONIC_TX_DOORBELL_DEADLINE (HZ / 100) /* 10ms */ #define IONIC_RX_MIN_DOORBELL_DEADLINE (HZ / 100) /* 10ms */ -#define IONIC_RX_MAX_DOORBELL_DEADLINE (HZ * 5) /* 5s */ +#define IONIC_RX_MAX_DOORBELL_DEADLINE (HZ * 4) /* 4s */ struct ionic_dev_bar { void __iomem *vaddr; diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index aa0cc31dfe6e..86774d9922d8 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -3220,7 +3220,7 @@ int ionic_lif_alloc(struct ionic *ionic) netdev->netdev_ops = &ionic_netdev_ops; ionic_ethtool_set_ops(netdev); - netdev->watchdog_timeo = 2 * HZ; + netdev->watchdog_timeo = 5 * HZ; netif_carrier_off(netdev); lif->identity = lid; -- 2.17.1

8 months

2
1
0 0

[PATCH net 2/2] net: mctp-serial: Fix missing escapes on transmit

by Matt Johnston

0x7d and 0x7e bytes are meant to be escaped in the data portion of frames, but this didn't occur since next_chunk_len() had an off-by-one error. That also resulted in the final byte of a payload being written as a separate tty write op. The chunk prior to an escaped byte would be one byte short, and the next call would never test the txpos+1 case, which is where the escaped byte was located. That meant it never hit the escaping case in mctp_serial_tx_work(). Example Input: 01 00 08 c8 7e 80 02 Previous incorrect chunks from next_chunk_len(): 01 00 08 c8 7e 80 02 With this fix: 01 00 08 c8 7e 80 02 Cc: stable(a)vger.kernel.org Fixes: a0c2ccd9b5ad ("mctp: Add MCTP-over-serial transport binding") Signed-off-by: Matt Johnston <matt(a)codeconstruct.com.au> --- drivers/net/mctp/mctp-serial.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mctp/mctp-serial.c b/drivers/net/mctp/mctp-serial.c index d7db11355909..82890e983847 100644 --- a/drivers/net/mctp/mctp-serial.c +++ b/drivers/net/mctp/mctp-serial.c @@ -91,8 +91,8 @@ static int next_chunk_len(struct mctp_serial *dev) * will be those non-escaped bytes, and does not include the escaped * byte. */ - for (i = 1; i + dev->txpos + 1 < dev->txlen; i++) { - if (needs_escape(dev->txbuf[dev->txpos + i + 1])) + for (i = 1; i + dev->txpos < dev->txlen; i++) { + if (needs_escape(dev->txbuf[dev->txpos + i])) break; }

8 months

2
1
0 0

[PATCH] drm/sched: Fix UB pointer dereference

by Philipp Stanner

In drm_sched_job_init(), commit 56e449603f0a ("drm/sched: Convert the GPU scheduler to variable number of run-queues") implemented a call to drm_err(), which uses the job's scheduler pointer as a parameter. job->sched, however, is not yet valid as it gets set by drm_sched_job_arm(), which is always called after drm_sched_job_init(). Since the scheduler code has no control over how the API-User has allocated or set 'job', the pointer's dereference is undefined behavior. Fix the UB by replacing drm_err() with pr_err(). Cc: <stable(a)vger.kernel.org> # 6.7+ Fixes: 56e449603f0a ("drm/sched: Convert the GPU scheduler to variable number of run-queues") Reported-by: Danilo Krummrich <dakr(a)redhat.com> Closes: https://lore.kernel.org/lkml/20231108022716.15250-1-dakr@redhat.com/ Signed-off-by: Philipp Stanner <pstanner(a)redhat.com> --- drivers/gpu/drm/scheduler/sched_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 7e90c9f95611..356c30fa24a8 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -797,7 +797,7 @@ int drm_sched_job_init(struct drm_sched_job *job, * or worse--a blank screen--leave a trail in the * logs, so this can be debugged easier. */ - drm_err(job->sched, "%s: entity has no rq!\n", __func__); + pr_err("*ERROR* %s: entity has no rq!\n", __func__); return -ENOENT; } -- 2.46.0

8 months

3
4
0 0

[PATCH net 00/15] mptcp: more fixes for the in-kernel PM

by Matthieu Baerts (NGI0)

Here is a new batch of fixes for the MPTCP in-kernel path-manager: Patch 1 ensures the address ID is set to 0 when the path-manager sends an ADD_ADDR for the address of the initial subflow. The same fix is applied when a new subflow is created re-using this special address. A fix for v6.0. Patch 2 is similar, but for the case where an endpoint is removed: if this endpoint was used for the initial address, it is important to send a RM_ADDR with this ID set to 0, and look for existing subflows with the ID set to 0. A fix for v6.0 as well. Patch 3 validates the two previous patches. Patch 4 makes the PM selecting an "active" path to send an address notification in an ACK, instead of taking the first path in the list. A fix for v5.11. Patch 5 fixes skipping the establishment of a new subflow if a previous subflow using the same pair of addresses is being closed. A fix for v5.13. Patch 6 resets the ID linked to the initial subflow when the linked endpoint is re-added, possibly with a different ID. A fix for v6.0. Patch 7 validates the three previous patches. Patch 8 is a small fix for the MPTCP Join selftest, when being used with older subflows not supporting all MIB counters. A fix for a commit introduced in v6.4, but backported up to v5.10. Patch 9 avoids the PM to try to close the initial subflow multiple times, and increment counters while nothing happened. A fix for v5.10. Patch 10 stops incrementing local_addr_used and add_addr_accepted counters when dealing with the address ID 0, because these counters are not taking into account the initial subflow, and are then not decremented when the linked addresses are removed. A fix for v6.0. Patch 11 validates the previous patch. Patch 12 avoids the PM to send multiple SUB_CLOSED events for the initial subflow. A fix for v5.12. Patch 13 validates the previous patch. Patch 14 stops treating the ADD_ADDR 0 as a new address, and accepts it in order to re-create the initial subflow if it has been closed, even if the limit for *new* addresses -- not taking into account the address of the initial subflow -- has been reached. A fix for v5.10. Patch 15 validates the previous patch. Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> --- Matthieu Baerts (NGI0) (15): mptcp: pm: reuse ID 0 after delete and re-add mptcp: pm: fix RM_ADDR ID for the initial subflow selftests: mptcp: join: check removing ID 0 endpoint mptcp: pm: send ACK on an active subflow mptcp: pm: skip connecting to already established sf mptcp: pm: reset MPC endp ID when re-added selftests: mptcp: join: check re-adding init endp with != id selftests: mptcp: join: no extra msg if no counter mptcp: pm: do not remove already closed subflows mptcp: pm: fix ID 0 endp usage after multiple re-creations selftests: mptcp: join: check re-re-adding ID 0 endp mptcp: avoid duplicated SUB_CLOSED events selftests: mptcp: join: validate event numbers mptcp: pm: ADD_ADDR 0 is not a new address selftests: mptcp: join: check re-re-adding ID 0 signal net/mptcp/pm.c | 4 +- net/mptcp/pm_netlink.c | 87 ++++++++++---- net/mptcp/protocol.c | 6 + net/mptcp/protocol.h | 5 +- tools/testing/selftests/net/mptcp/mptcp_join.sh | 149 ++++++++++++++++++++---- tools/testing/selftests/net/mptcp/mptcp_lib.sh | 4 + 6 files changed, 207 insertions(+), 48 deletions(-) --- base-commit: 8af174ea863c72f25ce31cee3baad8a301c0cf0f change-id: 20240826-net-mptcp-more-pm-fix-ffa61a36f817 Best regards, -- Matthieu Baerts (NGI0) <matttbe(a)kernel.org>

8 months

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