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2020-05-22drm/nouveau/disp/hda/gf119-: add HAL for programming device entry in SFBen Skeggs8-2/+17
Register has moved on GV100. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/disp/hda/gt215-: pass head to nvkm_ior.hda.eld()Ben Skeggs4-6/+6
We're going to use the bound head to select HDA device entry. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/disp/nv50-: increase timeout on pio channel free() pollingBen Skeggs1-1/+1
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Fix regression by audio component transitionTakashi Iwai1-6/+10
Since the commit 742db30c4ee6 ("drm/nouveau: Add HD-audio component notifier support"), the nouveau driver notifies and pokes the HD-audio HPD and ELD via audio component, but this seems broken. The culprit is the naive assumption that crtc->index corresponds to the HDA pin. Actually this rather corresponds to the MST dev_id (alias "pipe" in the audio component framework) while the actual port number is given from the output ior id number. This patch corrects the assignment of port and dev_id arguments in the audio component ops to recover from the HDMI/DP audio regression. Fixes: 742db30c4ee6 ("drm/nouveau: Add HD-audio component notifier support") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207223 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/device: use regular PRI accessors in chipset detectionBen Skeggs1-18/+13
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/device: detect vGPUsKarol Herbst1-3/+12
Using ENODEV as this prevents probe failed errors in dmesg. v2: move check further down Signed-off-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/device: detect if changing endianness failedKarol Herbst1-5/+21
v2: relax the checks a little Signed-off-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/device: rework mmio mapping code to get rid of second mapKarol Herbst1-12/+15
Fixes warnings on GPUs with smaller a smaller mmio region like vGPUs. Signed-off-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/mmu: Remove unneeded semicolonZheng Bin2-2/+2
Fixes coccicheck warning: drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h:307:2-3: Unneeded semicolon drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c:583:2-3: Unneeded semicolon Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zheng Bin <zhengbin13@huawei.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau: Use generic helper to check _PR3 presenceKai-Heng Feng1-34/+10
Replace nouveau_pr3_present() in favor of a more generic one, pci_pr3_present(). Also the presence of upstream bridge _PR3 doesn't need to go hand in hand with device's _DSM, so check _PR3 before _DSM. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/acr: Use kmemdup instead of kmalloc and memcpyZou Wei1-8/+4
Fixes coccicheck warning: drivers/gpu/drm/nouveau/nvkm/subdev/acr/hsfw.c:103:23-30: WARNING opportunity for kmemdup drivers/gpu/drm/nouveau/nvkm/subdev/acr/hsfw.c:113:22-29: WARNING opportunity for kmemdup Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zou Wei <zou_wei@huawei.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/core/memory: remove redundant assignments to variable retColin Ian King1-1/+1
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/svm: map pages after migrationRalph Campbell4-17/+95
When memory is migrated to the GPU, it is likely to be accessed by GPU code soon afterwards. Instead of waiting for a GPU fault, map the migrated memory into the GPU page tables with the same access permissions as the source CPU page table entries. This preserves copy on write semantics. Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/disp/gv100-: expose capabilities classBen Skeggs6-0/+69
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/bios: move ACPI _ROM handlingBen Skeggs3-76/+47
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau: remove open-coded version of remove_conflicting_pci_framebuffers()Ben Skeggs1-28/+3
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/gr/gk20a: move MODULE_FIRMWARE firmware definitionsBen Skeggs2-11/+11
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/ibus: use nvkm_subdev_new_()Ben Skeggs6-30/+6
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/core: add nvkm_subdev_new_() for bare subdevsBen Skeggs2-0/+13
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Support NVIDIA format modifiersJames Jones3-9/+104
Allow setting the block layout of a nouveau FB object using DRM format modifiers. When specified, the format modifier block layout and kind overrides the GEM buffer's implicit layout and kind. The specified format modifier is validated against the list of modifiers supported by the target display hardware. v2: Used Tesla family instead of NV50 chipset compare v4: Do not cache kind, tile_mode in nouveau_framebuffer v5: Resolved against nouveau_framebuffer cleanup Signed-off-by: James Jones <jajones@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Check framebuffer size against boJames Jones1-0/+98
Make sure framebuffer dimensions and tiling parameters will not result in accesses beyond the end of the GEM buffer they are bound to. v3: Return EINVAL when creating FB against BO with unsupported tiling v5: Resolved against nouveau_framebuffer cleanup Signed-off-by: James Jones <jajones@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Add format mod prop to base/ovly/nvdispJames Jones6-4/+112
Advertise support for the full list of format modifiers supported by each class of NVIDIA desktop GPU display hardware. Stash the array of modifiers in the nouveau_display struct for use when validating userspace framebuffer creation requests, which will be supportd in a subsequent change. Signed-off-by: James Jones <jajones@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/acr: ensure falcon providing acr functions is bootstrapped firstBen Skeggs1-0/+5
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Remove struct nouveau_framebufferThomas Zimmermann4-38/+28
After its cleanup, struct nouveau_framebuffer is only a wrapper around struct drm_framebuffer. Use the latter directly. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Remove field nvbo from struct nouveau_framebufferThomas Zimmermann7-84/+75
The buffer object stored in nvbo is also available GEM object in obj[0] of struct drm_framebuffer. Therefore remove nvbo in favor obj[0] and replace all references accordingly. This may require an additional cast. With this change we can already replace nouveau_user_framebuffer_destroy() and nouveau_user_framebuffer_create_handle() with generic GEM helpers. Calls to nouveau_framebuffer_new() receive a GEM object. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Move struct nouveau_framebuffer.vma to struct nouveau_fbdevThomas Zimmermann5-14/+14
The vma field of struct nouveau_framebuffer is a special field for the the accelerated fbdev console. Hence there's at most one single instance for the active console. Moving it into struct nouveau_fbdev makes struct nouveau_framebuffer slightly smaller and brings it closer to struct drm_framebuffer. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau/kms: Remove unused fields from struct nouveau_framebufferThomas Zimmermann1-5/+0
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22drm/nouveau: fix out-of-tree module buildBen Skeggs1-4/+6
The $(srctree) addition a while back busted building the out-of-tree version of the module, and I've been hacking it up ever since. This allows us to work around the issue. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-05-22Merge tag 'amd-drm-fixes-5.7-2020-05-21' of git://people.freedesktop.org/~agd5f/linux into drm-fixesDave Airlie18-95/+126
amd-drm-fixes-5.7-2020-05-21: amdgpu: - DP fix - Floating point fix - Fix cursor stutter issue Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200521222415.4122-1-alexander.deucher@amd.com
2020-05-22Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixesDave Airlie2-2/+4
two fixes: - memory leak fix when userspace passes a invalid softpin address - off-by-one crashing the kernel in the perfmon domain iteration when the GPU core has both 2D and 3D capabilities Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas Stach <l.stach@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/ca7bce5c8aff0fcbbdc3bf2b9723df5f687c8924.camel@pengutronix.de
2020-05-21drm/amdgpu: resize VRAM BAR for CPU access on gfx10Alan Swanson1-4/+10
Try to resize BAR0 to let CPU access all of VRAM on Navi. Syncs code with previous gfx generations from commit d6895ad39f3b39 ("drm/amdgpu: resize VRAM BAR for CPU access v6"). Signed-off-by: Alan Swanson <reiver@improbability.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amdgpu: drop navi pcie bw callbackAlex Deucher1-8/+0
It's not implemented yet so just drop it so the sysfs pcie bw file returns an appropriate error instead of garbage. Reviewed-by: Yong Zhao <Yong.Zhao@amd.com> Reviewed-By: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amdgpu: improve error handling in pcie_bwAlex Deucher1-1/+7
1. Initialize the counters to 0 in case the callback fails to initialize them. 2. The counters don't exist on APUs so return an error for them. 3. Return an error if the callback doesn't exist. Reviewed-by: Yong Zhao <Yong.Zhao@amd.com> Reviewed-By: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amdkfd: fix restore worker race conditionPhilip Yang1-3/+3
In free memory of gpu path, remove bo from validate_list to make sure restore worker don't access the BO any more, then unregister bo MMU interval notifier. Otherwise, the restore worker will crash in the middle of validating BO user pages if MMU interval notifer is gone. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/i915: Remove unneeded hack now for CDCLKStanislav Lisovskiy1-12/+0
No need to bump up CDCLK now, as it is now correctly calculated, accounting for DBuf BW as BSpec says. Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200519131117.17190-8-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Adjust CDCLK accordingly to our DBuf bw needsStanislav Lisovskiy8-15/+220
According to BSpec max BW per slice is calculated using formula Max BW = CDCLK * 64. Currently when calculating min CDCLK we account only per plane requirements, however in order to avoid FIFO underruns we need to estimate accumulated BW consumed by all planes(ddb entries basically) residing on that particular DBuf slice. This will allow us to put CDCLK lower and save power when we don't need that much bandwidth or gain additional performance once plane consumption grows. v2: - Fix long line warning - Limited new DBuf bw checks to only gens >= 11 v3: - Lets track used Dbuf bw per slice and per crtc in bw state (or may be in DBuf state in future), that way we don't need to have all crtcs in state and those only if we detect if are actually going to change cdclk, just same way as we do with other stuff, i.e intel_atomic_serialize_global_state and co. Just as per Ville's paradigm. - Made dbuf bw calculation procedure look nicer by introducing for_each_dbuf_slice_in_mask - we often will now need to iterate slices using mask. - According to experimental results CDCLK * 64 accounts for overall bandwidth across all dbufs, not per dbuf. v4: - Fixed missing const(Ville) - Removed spurious whitespaces(Ville) - Fixed local variable init(reduced scope where not needed) - Added some comments about data rate for planar formats - Changed struct intel_crtc_bw to intel_dbuf_bw - Moved dbuf bw calculation to intel_compute_min_cdclk(Ville) v5: - Removed unneeded macro v6: - Prevent too frequent CDCLK switching back and forth: Always switch to higher CDCLK when needed to prevent bandwidth issues, however don't switch to lower CDCLK earlier than once in 30 minutes in order to prevent constant modeset blinking. We could of course not switch back at all, however this is bad from power consumption point of view. v7: - Fixed to track cdclk using bw_state, modeset will be now triggered only when CDCLK change is really needed. v8: - Lock global state if bw_state->min_cdclk is changed. - Try getting bw_state only if there are crtcs in the commit (need to have read-locked global state) v9: - Do not do Dbuf bw check for gens < 9 - triggers WARN as ddb_size is 0. v10: - Lock global state for older gens as well. v11: - Define new bw_calc_min_cdclk hook, instead of using a condition(Manasi Navare) v12: - Fixed rebase conflict v13: - Added spaces after declarations to make checkpatch happy. Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200520150058.16123-1-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Introduce for_each_dbuf_slice_in_mask macroStanislav Lisovskiy2-0/+8
We quite often need now to iterate only particular dbuf slices in mask, whether they are active or related to particular crtc. v2: - Minor code refactoring v3: - Use enum for max slices instead of macro Let's make our life a bit easier and use a macro for that. Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200519131117.17190-6-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Plane configuration affects CDCLK in Gen11+Stanislav Lisovskiy1-1/+1
So lets support it. v2: - Fixed "from" field which got corrupted for some weird reason Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200520145945.15997-1-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Check plane configuration properlyStanislav Lisovskiy1-1/+7
Checking with hweight8 if plane configuration had changed seems to be wrong as different plane configs can result in a same hamming weight. So lets check the bitmask itself. v2: Fixed "from" field which got corrupted for some weird reason Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200520145827.15887-1-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Extract cdclk requirements checking to separate functionStanislav Lisovskiy1-8/+22
In Gen11+ whenever we might exceed DBuf bandwidth we might need to recalculate CDCLK which DBuf bandwidth is scaled with. Total Dbuf bw used might change based on particular plane needs. Thus to calculate if cdclk needs to be changed it is not enough anymore to check plane configuration and plane min cdclk, per DBuf bw can be calculated only after wm/ddb calculation is done and all required planes are added into the state. In order to keep all min_cdclk related checks in one place let's extract it into separate function, checking and modifying any_ms. Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200519131117.17190-3-stanislav.lisovskiy@intel.com
2020-05-21drm/i915: Decouple cdclk calculation from modeset checksStanislav Lisovskiy1-10/+12
We need to calculate cdclk after watermarks/ddb has been calculated as with recent hw CDCLK needs to be adjusted accordingly to DBuf requirements, which is not possible with current code organization. Setting CDCLK according to DBuf BW requirements and not just rejecting if it doesn't satisfy BW requirements, will allow us to save power when it is possible and gain additional bandwidth when it's needed - i.e boosting both our power management and perfomance capabilities. This patch is preparation for that, first we now extract modeset calculation from modeset checks, in order to call it after wm/ddb has been calculated. v2: - Extract only intel_modeset_calc_cdclk from intel_modeset_checks (Ville Syrjälä) v3: - Clear plls after intel_modeset_calc_cdclk v4: - Added r-b from previous revision to commit message Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200519131117.17190-2-stanislav.lisovskiy@intel.com
2020-05-21drm/amdgpu: off by one in amdgpu_device_attr_create_groups() error handlingDan Carpenter1-2/+1
This loop in the error handling code should start a "i - 1" and end at "i == 0". Currently it starts a "i" and ends at "i == 1". The result is that it removes one attribute that wasn't created yet, and leaks the zeroeth attribute. Fixes: 4e01847c38f7 ("drm/amdgpu: optimize amdgpu device attribute code") Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amdgpu/smu10: Replace one-element array and use struct_size() helperGustavo A. R. Silva2-5/+3
The current codebase makes use of one-element arrays in the following form: struct something { int length; u8 data[1]; }; struct something *instance; instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL); instance->length = size; memcpy(instance->data, source, size); but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. So, replace the one-element array with a flexible-array member. Also, make use of the new struct_size() helper to properly calculate the size of struct smu10_voltage_dependency_table. This issue was found with the help of Coccinelle and, audited and fixed _manually_. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: Set/Reset avmute when disable/enable streamJinze Xu1-0/+8
[Why] When disconnect fe from be, something such as unstable clock may cause garbage occurs. [How] Send set avmute at the beginning of disable stream and send reset avmute at the end of enable stream. Signed-off-by: Jinze Xu <jinze.xu@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Tony Cheng <Tony.Cheng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: Fix incorrectly pruned modes with deep colorStylon Wang1-38/+64
[Why] When "max bpc" is set to enable deep color, some modes are removed from the list if they fail validation on max bpc. These modes should be kept if they validates fine with lower bpc. [How] - Retry with lower bpc in mode validation. - Same in atomic commit to apply working bpc, not necessarily max bpc. Signed-off-by: Stylon Wang <stylon.wang@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: correct rn NUM_VMIDDmytro Laktyushkin4-9/+9
Save the correct num vmid during resource creation and fix RN gpuvm level from 1 to 16 vmid entries. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: Avoid pipe split when plane is too smallNicholas Kazlauskas2-2/+33
[Why] The minimum plane size we can support in DML is 16x16. If we try to pass a 16x16 plane with dynamic pipe split then validation will fail since it tries to split it into two pipes, each 8x8. Some userspace doesn't check that the commit fails and because the commit fails the old state is retained, resulting in corruption. [How] Add a workaround to avoid pipe split if any plane is 16x16 or smaller. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: Defer cursor lock until after VUPDATENicholas Kazlauskas6-1/+81
[Why] We dropped the delay after changed the cursor functions locking the entire pipe to locking just the CURSOR registers to fix page flip stuttering - this introduced cursor stuttering instead, and an underflow issue. The cursor update can be delayed indefinitely if the cursor update repeatedly happens right around VUPDATE. The underflow issue can happen if we do a viewport update on a pipe on the same frame where a cursor update happens around VUPDATE - the old cursor registers are retained which can be in an invalid position. This can cause a pipe hang and indefinite underflow. [How] The complex, ideal solution to the problem would be a software triple buffering mechanism from the DM layer to program only one cursor update per frame just before VUPDATE. The simple workaround until we have that infrastructure in place is this change - bring back the delay until VUPDATE before locking, but with some corrections to the calculations. This didn't work for all timings before because the calculation for VUPDATE was wrong - it was using the offset from VSTARTUP instead and didn't correctly handle the case where VUPDATE could be in the back porch. Add a new hardware sequencer function to use the existing helper to calculate the real VUPDATE start and VUPDATE end - VUPDATE can last multiple lines after all. Change the udelay to incorporate the width of VUPDATE as well. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: DP training to set properly SCRAMBLING_DISABLEVladimir Stempen1-0/+27
[Why] DP training sequence to set SCRAMBLING_DISABLE bit properly based on training pattern - per DP Spec. [How] Update dpcd_pattern.v1_4.SCRAMBLING_DISABLE with 1 for TPS1, TPS2, TPS3, but not for TPS4. Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-21drm/amd/display: Remove dml_common_def fileRodrigo Siqueira11-94/+18
During the rework for removing the FPU issues, I found the following warning: [..] dml_common_defs.o: warning: objtool: dml_round()+0x9: FPU instruction outside of kernel_fpu_{begin,end}() This file has a single function that does not need to be in a specific file. This commit drop dml_common_defs file, and move dml_round function to dml_inline_defs. CC: Christian König <christian.koenig@amd.com> CC: Alexander Deucher <Alexander.Deucher@amd.com> CC: Peter Zijlstra <peterz@infradead.org> CC: Tony Cheng <tony.cheng@amd.com> CC: Harry Wentland <hwentlan@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>