dri-devel March 2021

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[PULL] drm-misc-fixes
by Maarten Lankhorst 18 Mar '21

18 Mar '21

drm-misc-fixes-2021-03-18: drm-misc-fixes for v5.12-rc4: - Make ttm_bo_unpin() not wraparound on too many unpins. - Fix coccicheck warning in omap. The following changes since commit de066e116306baf3a6a62691ac63cfc0b1dabddb: drm/compat: Clear bounce structures (2021-03-11 11:11:33 +0100) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-misc tags/drm-misc-fixes-2021-03-18 for you to fetch changes up to 6909115442759efef3d4bc5d9c54d7943f1afc14: drm/omap: dsi: fix unsigned expression compared with zero (2021-03-17 13:59:23 +0200) ---------------------------------------------------------------- drm-misc-fixes for v5.12-rc4: - Make ttm_bo_unpin() not wraparound on too many unpins. - Fix coccicheck warning in omap. ---------------------------------------------------------------- Christian König (1): drm/ttm: make ttm_bo_unpin more defensive Junlin Yang (1): drm/omap: dsi: fix unsigned expression compared with zero drivers/gpu/drm/omapdrm/dss/dsi.c | 7 ++++--- include/drm/ttm/ttm_bo_api.h | 6 ++++-- 2 files changed, 8 insertions(+), 5 deletions(-)

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[Bug 212137] New: kernel NULL pointer dereference, black screen when using two graphics cards
by bugzilla-daemon＠bugzilla.kernel.org 18 Mar '21

18 Mar '21

https://bugzilla.kernel.org/show_bug.cgi?id=212137 Bug ID: 212137 Summary: kernel NULL pointer dereference, black screen when using two graphics cards Product: Drivers Version: 2.5 Kernel Version: 5.11 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: mail(a)dennisfoster.us Regression: No Created attachment 295741 --> https://bugzilla.kernel.org/attachment.cgi?id=295741&action=edit lspci -vvv On linux v5.11 and above (up to 5.11.4) I cannot longer boot the system (GNOME/Wayland) using two graphics cards. It gets stuck with black screen with no response to keyboard/mouse. In systemd journal there are some messages about kernel bug: Mar 08 11:54:05 homeserver kernel: BUG: kernel NULL pointer dereference, address: 0000000000000008 Mar 08 11:54:05 homeserver kernel: #PF: supervisor read access in kernel mode Mar 08 11:54:05 homeserver kernel: #PF: error_code(0x0000) - not-present page Mar 08 11:54:05 homeserver kernel: PGD 0 P4D 0 Mar 08 11:54:05 homeserver kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI Mar 08 11:54:05 homeserver kernel: CPU: 6 PID: 608 Comm: gnome-shell Tainted: G OE 5.11.4-arch1-1 #1 Mar 08 11:54:05 homeserver kernel: Hardware name: Gigabyte Technology Co., Ltd. A320M-S2H/A320M-S2H-CF, BIOS F2 11/03/2020 Mar 08 11:54:05 homeserver kernel: RIP: 0010:drm_gem_handle_create_tail+0xcb/0x190 [drm] Mar 08 11:54:05 homeserver kernel: Code: 00 48 89 df e8 c6 20 59 f4 45 85 e4 78 77 48 8d 5d 18 4c 89 ee 48 89 df e8 42 fe 00 00 89 c2 85 c0 75 3e 48 8b 85 40 01 00 00 <48> 8b 40 08 48 85 c0 74 0f 4c 89 ee 48 89 ef e8 81 8b 91 f4 85 c0 Mar 08 11:54:05 homeserver kernel: RSP: 0018:ffffb7a7c16bfd30 EFLAGS: 00010246 Mar 08 11:54:05 homeserver kernel: RAX: 0000000000000000 RBX: ffffa0eabe065090 RCX: 0000000000000001 Everything works perfectly fine using current LTS v5.10.21. I am using Radeon RX 470 as a primary card, and the older ATI FirePro 2270 as a secondary one in order to provide two extra monitor outputs. I've attached my lspci output as well as full systemd log. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.

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[PULL] drm-intel-fixes
by Jani Nikula 18 Mar '21

18 Mar '21

Hi Dave & Daniel - Covering for Rodrigo during his absence this week. drm-intel-fixes-2021-03-18: drm/i915 fixes for v5.12-rc4: - Workaround async flip + VT-d frame corruption on HSW/BDW - Fix NMI watchdog crash due to uninitialized OA buffer use on gen12+ BR, Jani. The following changes since commit 1e28eed17697bcf343c6743f0028cc3b5dd88bf0: Linux 5.12-rc3 (2021-03-14 14:41:02 -0700) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-intel tags/drm-intel-fixes-2021-03-18 for you to fetch changes up to 6a77c6bb7260bd5000f95df454d9f8cdb1af7132: i915/perf: Start hrtimer only if sampling the OA buffer (2021-03-17 12:51:37 +0200) ---------------------------------------------------------------- drm/i915 fixes for v5.12-rc4: - Workaround async flip + VT-d frame corruption on HSW/BDW - Fix NMI watchdog crash due to uninitialized OA buffer use on gen12+ ---------------------------------------------------------------- Umesh Nerlige Ramappa (1): i915/perf: Start hrtimer only if sampling the OA buffer Ville Syrjälä (1): drm/i915: Workaround async flip + VT-d corruption on HSW/BDW drivers/gpu/drm/i915/i915_perf.c | 13 +++++-------- drivers/gpu/drm/i915/i915_reg.h | 23 ++++++++++++++++++++++- drivers/gpu/drm/i915/intel_pm.c | 16 +++++++++++++++- 3 files changed, 42 insertions(+), 10 deletions(-) -- Jani Nikula, Intel Open Source Graphics Center

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[PATCH] drm/msm/dpu: enable DPU_SSPP_QOS_8LVL for SM8250
by Dmitry Baryshkov 18 Mar '21

18 Mar '21

SM8250 platform has a 8-Levels VIG QoS setting. This setting was missed due to bad interaction with b8dab65b5ac3 ("drm/msm/dpu: Move DPU_SSPP_QOS_8LVL bit to SDM845 and SC7180 masks"), which was applied in parallel. Fixes: d21fc5dfc3df ("drm/msm/dpu1: add support for qseed3lite used on sm8250") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c index bffe5969ed7e..f21f630af476 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -22,7 +22,7 @@ (VIG_MASK | BIT(DPU_SSPP_QOS_8LVL) | BIT(DPU_SSPP_SCALER_QSEED4)) #define VIG_SM8250_MASK \ - (VIG_MASK | BIT(DPU_SSPP_SCALER_QSEED3LITE)) + (VIG_MASK | BIT(DPU_SSPP_QOS_8LVL) | BIT(DPU_SSPP_SCALER_QSEED3LITE)) #define DMA_SDM845_MASK \ (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) | BIT(DPU_SSPP_QOS_8LVL) |\ -- 2.30.2

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[PATCH v16 0/2] Add memory bandwidth management to NVIDIA Tegra DRM driver
by Dmitry Osipenko 18 Mar '21

18 Mar '21

This series adds memory bandwidth management to the NVIDIA Tegra DRM driver, which is done using interconnect framework. It fixes display corruption that happens due to insufficient memory bandwidth. Changelog: v16: - Implemented suggestions that were given by Michał Mirosław to v15. - Added r-b from Michał Mirosław to the debug-stats patch. - Rebased on top of a recent linux-next. - Removed bandwidth scaling based on width difference of src/dst windows since it's not actual anymore. Apparently the recent memory driver changes fixed problems that I witnessed before. - Average bandwidth calculation now won't overflow for 4k resolutions. - Average bandwidth calculation now uses the size of the visible area instead of the src area since debug stats of the memory controller clearly show that downscaled window takes less bandwidth, proportionally to the scaled size. - Bandwidth calculation now uses "adjusted mode" of the CRTC, which is what used for h/w programming, instead of the mode that was requested by userspace, although the two usually match in practice. v15: - Corrected tegra_plane_icc_names[] NULL-check that was partially lost by accident in v14 after unsuccessful rebase. v14: - Made improvements that were suggested by Michał Mirosław to v13: - Changed 'unsigned int' to 'bool'. - Renamed functions which calculate bandwidth state. - Reworked comment in the code that explains why downscaled plane require higher bandwidth. - Added round-up to bandwidth calculation. - Added sanity checks of the plane index and fixed out-of-bounds access which happened on T124 due to the cursor plane index. v13: - No code changes. Patches missed v5.12, re-sending them for v5.13. Dmitry Osipenko (2): drm/tegra: dc: Support memory bandwidth management drm/tegra: dc: Extend debug stats with total number of events drivers/gpu/drm/tegra/Kconfig | 1 + drivers/gpu/drm/tegra/dc.c | 362 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/tegra/dc.h | 19 ++ drivers/gpu/drm/tegra/drm.c | 14 ++ drivers/gpu/drm/tegra/hub.c | 3 + drivers/gpu/drm/tegra/plane.c | 116 +++++++++++ drivers/gpu/drm/tegra/plane.h | 15 ++ 7 files changed, 530 insertions(+) -- 2.30.2

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[Bug 212255] New: WARNING: at arch/x86/kernel/fpu/core.c:129 kernel_fpu_begin_mask
by bugzilla-daemon＠bugzilla.kernel.org 18 Mar '21

18 Mar '21

https://bugzilla.kernel.org/show_bug.cgi?id=212255 Bug ID: 212255 Summary: WARNING: at arch/x86/kernel/fpu/core.c:129 kernel_fpu_begin_mask Product: Drivers Version: 2.5 Kernel Version: 5.11.3 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: info(a)felicetufo.com Regression: No Created attachment 295819 --> https://bugzilla.kernel.org/attachment.cgi?id=295819&action=edit dmesg Hello, i get two warnings booting kernel 5.11.3. The warning is present on later 5.11.x kernels (included 5.11.6) too, but does not show on 5.11.2. ------------[ cut here ]------------ [ 6.099356] WARNING: CPU: 6 PID: 366 at arch/x86/kernel/fpu/core.c:129 kernel_fpu_begin_mask+0xa3/0xb0 ---[ end trace 4cbc711ff0b0578b ]--- [ 6.102354] ------------[ cut here ]------------ [ 6.102354] WARNING: CPU: 6 PID: 366 at arch/x86/kernel/fpu/core.c:155 kernel_fpu_end+0x1e/0x30 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.

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linux-next: manual merge of the drm tree with the drm-misc-fixes tree
by Stephen Rothwell 18 Mar '21

18 Mar '21

Hi all, Today's linux-next merge of the drm tree got a conflict in: drivers/gpu/drm/omapdrm/dss/dsi.c between commit: 690911544275 ("drm/omap: dsi: fix unsigned expression compared with zero") from the drm-misc-fixes tree and commit: bbd13d6a7b2e ("drm/omap: dsi: fix unreachable code in dsi_vc_send_short()") from the drm tree. I fixed it up (these do basically the same thing, so I used the former version) and can carry the fix as necessary. This is now fixed as far as linux-next is concerned, but any non trivial conflicts should be mentioned to your upstream maintainer when your tree is submitted for merging. You may also want to consider cooperating with the maintainer of the conflicting tree to minimise any particularly complex conflicts. -- Cheers, Stephen Rothwell

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[pull] amdgpu drm-fixes-5.12
by Alex Deucher 18 Mar '21

18 Mar '21

Hi Dave, Daniel, Fixes for 5.12. The following changes since commit 4042160c2e5433e0759782c402292a90b5bf458d: drm/nouveau: fix dma syncing for loops (v2) (2021-03-12 11:21:47 +1000) are available in the Git repository at: https://gitlab.freedesktop.org/agd5f/linux.git tags/amd-drm-fixes-5.12-2021-03-18 for you to fetch changes up to beb6b2f97e0a02164c7f0df6e08c49219cfc2b80: drm/amd/display: Remove MPC gamut remap logic for DCN30 (2021-03-18 00:05:22 -0400) ---------------------------------------------------------------- amdgpu: - DCN 3.0 gamma fixes - DCN 2.1 corrupt screen fix ---------------------------------------------------------------- Calvin Hou (1): drm/amd/display: Correct algorithm for reversed gamma Dillon Varone (1): drm/amd/display: Remove MPC gamut remap logic for DCN30 Sung Lee (1): drm/amd/display: Copy over soc values before bounding box creation drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 34 ++-------------------- .../gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 5 ++++ .../gpu/drm/amd/display/dc/dcn30/dcn30_cm_common.c | 26 ++++++++++++----- 3 files changed, 25 insertions(+), 40 deletions(-)

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[PATCH] drm/msm: Remove unneeded variable: "rc"
by zuoqilin1＠163.com 18 Mar '21

18 Mar '21

From: zuoqilin <zuoqilin(a)yulong.com> Remove unneeded variable: "rc". Signed-off-by: zuoqilin <zuoqilin(a)yulong.com> --- drivers/gpu/drm/msm/dp/dp_panel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 9cc8166..8cb3d01 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -351,7 +351,6 @@ void dp_panel_dump_regs(struct dp_panel *dp_panel) int dp_panel_timing_cfg(struct dp_panel *dp_panel) { - int rc = 0; u32 data, total_ver, total_hor; struct dp_catalog *catalog; struct dp_panel_private *panel; @@ -404,7 +403,7 @@ int dp_panel_timing_cfg(struct dp_panel *dp_panel) dp_catalog_panel_timing_cfg(catalog); panel->panel_on = true; - return rc; + return 0; } int dp_panel_init_panel_info(struct dp_panel *dp_panel) -- 1.9.1

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[PATCH v2] drivers/video/fbdev:modify 'if (addrp == NULL)' to 'if (!addr)
by ChunyouTang 18 Mar '21

18 Mar '21

From: tangchunyou <tangchunyou(a)yulong.com> modify 'if (addrp == NULL)' to 'if (!addr) Signed-off-by: tangchunyou <tangchunyou(a)yulong.com> --- drivers/video/fbdev/offb.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c index cd1042f..52d86e3 100644 --- a/drivers/video/fbdev/offb.c +++ b/drivers/video/fbdev/offb.c @@ -305,9 +305,9 @@ static void __iomem *offb_map_reg(struct device_node *np, int index, unsigned int flags; addrp = of_get_pci_address(np, index, &asize, &flags); - if (addrp == NULL) + if (!addrp) addrp = of_get_address(np, index, &asize, &flags); - if (addrp == NULL) + if (!addrp) return NULL; if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0) return NULL; @@ -412,7 +412,7 @@ static void __init offb_init_fb(const char *name, info = framebuffer_alloc(sizeof(u32) * 16, NULL); - if (info == NULL) { + if (!info) { release_mem_region(res_start, res_size); return; } @@ -555,25 +555,25 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) #endif pp = of_get_property(dp, "linux,bootx-depth", &len); - if (pp == NULL) + if (!pp) pp = of_get_property(dp, "depth", &len); if (pp && len == sizeof(u32)) depth = be32_to_cpup(pp); pp = of_get_property(dp, "linux,bootx-width", &len); - if (pp == NULL) + if (!pp) pp = of_get_property(dp, "width", &len); if (pp && len == sizeof(u32)) width = be32_to_cpup(pp); pp = of_get_property(dp, "linux,bootx-height", &len); - if (pp == NULL) + if (!pp) pp = of_get_property(dp, "height", &len); if (pp && len == sizeof(u32)) height = be32_to_cpup(pp); pp = of_get_property(dp, "linux,bootx-linebytes", &len); - if (pp == NULL) + if (!pp) pp = of_get_property(dp, "linebytes", &len); if (pp && len == sizeof(u32) && (*pp != 0xffffffffu)) pitch = be32_to_cpup(pp); @@ -593,7 +593,7 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) * the "address" property. If none match, we pick the biggest */ up = of_get_property(dp, "linux,bootx-addr", &len); - if (up == NULL) + if (!up) up = of_get_property(dp, "address", &len); if (up && len == sizeof(u32)) addr_prop = *up; -- 1.9.1

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dri-devel March 2021