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2024-04-30drm/i915/dpio: Extract vlv_dpio_phy_regs.hVille Syrjälä6-298/+313
Pull the VLV/CHV DPIO PHY sideband registers to their own file. v2: drop stray tabs (Jani) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-15-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Clean up the vlv/chv PHY register bitsVille Syrjälä4-202/+229
Use REG_BIT() & co. for the vlv/chv DPIO PHY registers. Note that DPIO_BIAS_CURRENT_CTL_SHIFT was incorrectly defined to be 21 wheres 20 is the correct value. It is not used in the code though so didn't bother splitting to a separate patch. v2: drop stray tabs (Jani) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-14-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Clean up VLV/CHV DPIO PHY register definesVille Syrjälä2-176/+101
The DPIO PHY registers follow clear numbering rules. Express those in a few macros to get rid of the hand calculated final offsets. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-13-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Rename a few CHV DPIO PHY registersVille Syrjälä3-24/+23
Drop the leading underscore from the CHV PHY common lane register definitions. We use these directly from actual code so the underscore here is misleading as usually it indicates an intermediate define that shouldn't be used directly. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-12-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Give VLV DPIO group register a clearer nameVille Syrjälä2-62/+62
Include _GRP in VLV DPIO PHY group access register define names. Makes it more obvious where the accesses will land. Also matches the naming used by BXT already. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-11-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Derive the phy from the port rather than pipe in encoder hooksVille Syrjälä2-17/+11
In the encoder hooks we are dealing primarily with the encoder, so derive the DPIO PHY from the encoder rather than the pipe. Technically this doesn't matter as we can't cross connect pipes<->port across PHY boundaries, but it does conveny the intention more accurately. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-10-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: s/pipe/ch/Ville Syrjälä1-24/+25
Stop using 'pipe' directly as the DPIO PHY channel. This does happen to work on VLV since it just has the one PHY with CH0==pipe A and CH1==pipe B. But explicitly converting the thing to the right enum makes the whole thing less confusing. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-9-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: s/port/ch/Ville Syrjälä2-49/+49
Stop calling the DPIO PHY channel "port". Just say "ch", which is already used in a bunch of places. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-8-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Rename some variablesVille Syrjälä1-49/+48
Use a consistent 'tmp' as the variable name for the register values during rmw when we don't deal with multiple registers in parallel. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-7-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Remove pointless variables from vlv/chv DPLL codeVille Syrjälä1-36/+28
Drop all the local variables for the DPLL dividers for vlv/chv and just consult the state directly. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-6-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Fix VLV DPIO PLL register dword numberingVille Syrjälä2-21/+21
The spreadsheet defines the PLL register block as having the dwords in the following order: block dwords offsets PLL1 0x0-0x7 0x00-0x1f PLL2 0x0-0x7 0x20-0x3f PLL1ext 0x10-0x1f 0x40-0x5f PLL2ext 0x10-0x1f 0x60-0x7f So dword indexes 0x8-0xf don't even exist. Renumber our register defines to match. Note that the spreadsheet used hex numbering whereas our defiens are in decimal. Perhaps we should change that? Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-5-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: s/VLV_PLL_DW9_BCAST/VLV_PCS_DW17_BCAST/Ville Syrjälä2-2/+3
VLV_PLL_DW9_BCAST is actually VLV_PCS_DW17_BCAST. The address does kinda look like it goes to the PLL block on a first glance, but broadcast is special and doesn't even exist for the PLL (only PCS and TX have it). The fact that we use a broadcast write here is a bit sketchy IMO since we're now blasting the register to all PCS splines across the whole PHY. So the PCS registers in the other channel (ie. other pipe/port) will also be written. But I guess the fact that we always write the same value should make this a nop even if the other channel is already enabled (assuming the VBIOS/GOP didn't screw up and use some other value...). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-4-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: s/VLV_REF_DW13/VLV_REF_DW11/Ville Syrjälä2-6/+6
Our VLV_REF_DW13 is actually VLV_REF_DW11. Rename it. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915/dpio: Remove pointless VLV_PCS01_DW8 readVille Syrjälä1-1/+0
We don't use the result of the VLV_PCS01_DW8 read at all, so don't read. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C22Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C22 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/0a07f615c574040094b37c861078e41daf53c706.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C21_C20Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C21_C20 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/af39047d304f8a5c3c7a643f702f66c06ea5d638.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C12Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C12 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/62a748b685f253151b17c101dec75351577f30c0.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C11_C10Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C11_C10 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3f7aae89cf63760bca43b54102c76b3ed2cf8735.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C02Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C02 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/550d4e787445802236f0bf89e4d2f4f32cbd6d75.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PIPE_WGC_C01_C00Jani Nikula2-3/+3
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PIPE_WGC_C01_C00 register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/85b3db6e666a7a629b10b482b7e7043d52d30511.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-30drm/i915: pass dev_priv explicitly to PALETTEJani Nikula2-11/+20
Avoid the implicit dev_priv local variable use, and pass dev_priv explicitly to the PALETTE register macro. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/bf07d29cefef23ebd5d54fbb0d3bf7e41d132d93.1714399071.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-29drm/i915/display: split out intel_sprite_regs.h from i915_reg.hJani Nikula8-341/+357
Clean up i915_reg.h. v2: Drop a redundant comment (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/679b7395a78c53006ac07448706f1809b74810de.1714128645.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-29drm/i915/display: split out intel_fbc_regs.h from i915_reg.hJani Nikula6-123/+125
Clean up i915_reg.h. v2: Drop chicken regs and comments (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/aa9b5d8adefbe97e1e37c9cfada3ab1581b0e8d5.1714128645.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-29drm/i915/color: move palette registers to intel_color_regs.hJani Nikula2-31/+29
For some reason the paletter registers were missed when adding intel_color_regs.h. Finish the job. Adjust some comments while at it. v2: Fix comments (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1322f577b113b8fc1a6c2ef35340fc3c599b4bcb.1714128645.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-29drm/i915/audio: move LPE audio regs to intel_audio_regs.hJani Nikula3-17/+17
There are too few registers to warrant a dedicated file for LPE audio regs, but the audio reg file is better than i915_reg.h. v2: Rebase Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/b5ee35309b2e0905aaa12d944b3d379c45a8a0bd.1714128645.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/{i915, xe}: Implement fbdev emulation as in-kernel clientThomas Zimmermann5-140/+80
Replace all code that initializes or releases fbdev emulation throughout the driver. Instead initialize the fbdev client by a single call to intel_fbdev_setup() after i915 has registered its DRM device. Just like similar code in other drivers, i915 fbdev emulation now acts like a regular DRM client. Do the same for xe. The fbdev client setup consists of the initial preparation and the hot-plugging of the display. The latter creates the fbdev device and sets up the fbdev framebuffer. The setup performs display hot-plugging once. If no display can be detected, DRM probe helpers re-run the detection on each hotplug event. A call to drm_client_dev_unregister() releases all in-kernel clients automatically. No further action is required within i915. If the fbdev framebuffer has been fully set up, struct fb_ops.fb_destroy implements the release. For partially initialized emulation, the fbdev client reverts the initial setup. Do the same for xe and remove its call to intel_fbdev_fini(). v8: - setup client in intel_display_driver_register (Jouni) - mention xe in commit message v7: - update xe driver - reword commit message v6: - use 'i915' for i915 device (Jouni) - remove unnecessary code for non-atomic mode setting (Jouni, Ville) - fix function name in commit message (Jouni) v3: - as before, silently ignore devices without displays v2: - let drm_client_register() handle initial hotplug - fix driver name in error message (Jani) - fix non-fbdev build (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-7-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/{i915,xe}: Implement fbdev client callbacksThomas Zimmermann5-49/+25
Move code from ad-hoc fbdev callbacks into DRM client functions and remove the old callbacks. The functions instruct the client to poll for changed output or restore the display. The DRM core calls both, the old callbacks and the new client helpers, from the same places. The new functions perform the same operation as before, so there's no change in functionality. Fox xe, remove xe_display_last_close(), which restored the fbdev display. As with i915, the DRM core's drm_lastclose() performs this operation automatically. v8: - mention xe in commit message v7: - update xe driver v6: - return errors from client callbacks (Jouni) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-6-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/{i915,xe}: Unregister in-kernel clientsThomas Zimmermann2-0/+4
Unregister all in-kernel clients before unloading the i915 driver. For other drivers, drm_dev_unregister() does this automatically. As i915 and xe do not use this helper, they have to perform the call by themselves. Note that there are currently no in-kernel clients in i915 or xe. The patch prepares the drivers for a related update of their fbdev support. v8: - unregister clients in intel_display_driver_unregister() (Jani) - mention xe in commit message (Rodrigo, Jani) v7: - update xe driver Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-5-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/i915: Initialize fbdev DRM client with callback functionsThomas Zimmermann1-4/+39
Initialize i915's fbdev client by giving an instance of struct drm_client_funcs to drm_client_init(). Also clean up with drm_client_release(). Doing this in i915 prevents fbdev helpers from initializing and releasing the client internally (see drm_fb_helper_init()). No functional change yet; the client callbacks will be filled later. v6: - rename client to "intel-fbdev" (Jouni) v2: - call drm_fb_helper_unprepare() in error handling (Jani) - fix typo in commit message (Sam) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-4-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/i915: Move fbdev functionsThomas Zimmermann1-77/+77
Move functions within intel_fbdev.c to simplify later updates. Minor style fixes to make checkpatch happy, but no functional changes. v5: - style fixes (checkpatch) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-3-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/client: Export drm_client_dev_unregister()Thomas Zimmermann1-0/+13
Export drm_client_dev_unregister() for use by the i915 driver. The driver does not use drm_dev_unregister(), so it has to clean up the in-kernel DRM clients by itself. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-2-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/i915: pass dev_priv to _MMIO_PIPE2, _MMIO_TRANS2, _MMIO_CURSOR2Jani Nikula4-128/+128
Pass the dev_priv parameter to the low-level helpers, and move the implicit dev_priv usage one level higher. sed -i "s/\(_MMIO_PIPE2(\|_MMIO_TRANS2(\|_MMIO_CURSOR2(\)/\1dev_priv, /" \ $(git ls-files drivers/gpu/drm/i915) Name the parameter "display", as the generics allow it to be display already. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3a865664898586ff6cb8e74eab3d1f36eafc0557.1713890614.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-25drm/i915: convert _MMIO_PIPE3()/_MMIO_PORT3() to accept baseJani Nikula2-40/+44
Most users of _MMIO_PIPE3() and _MMIO_PORT3() need to add the MMIO base to the registers. Convert the macros to _MMIO_BASE_PIPE3() and _MMIO_BASE_PORT3() to move the base addition until after the register selection. If the register address depends on DISPLAY_MMIO_BASE(), this removes the need to figure the base out for each register, and it only needs to be added once. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/4b95f125f5021abc00b5fc661b2728f1b583c01e.1713890614.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-23drm/i915/dsi: pass display to register macros instead of implicit variableJani Nikula4-342/+349
Stop relying on the dev_priv local variable in the DSI register macros. Pass struct intel_display pointer to the macros. Move the MIPI DSI MMIO base selection to a different level, passing it to _MMIO_MIPI() and doing the addition there. Start using the local display variable for all intel_de_* usage, and opportunistically use it for other things than display registers as well. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/6dd52f3fce3527242479aadc276d05de74ceae5d.1713520813.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-23drm/i915/dsi: unify connector/encoder type and name usageJani Nikula1-74/+60
Stop using struct drm_* local variables and parameters where possible. Drop the intel_ prefix from struct intel_encoder and intel_connector local variable and parameter names. Drop useless intermediate variables. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/7aa8fbaa2ecbe2400255964d49aba40cfe0479c5.1713520813.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-23drm/i915/dsi: add VLV_ prefix to VLV only register macrosJani Nikula2-5/+5
All the BXT specific macros have BXT_ prefix, do the same for VLV for consistency. This is helpful because the platform specific macros can use the static MIPI MMIO base rather than dynamic. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/7e101167c52746748dbff739bc9247a664ca2840.1713520813.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-23drm/i915/dsi: remove unused _MIPIA_AUTOPWG register definitionJani Nikula1-3/+0
There are other unused registers, but this is also unusable and inadequate. Remove. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/57afda02856a68f78fe4d30384d4f7b352b9a812.1713520813.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22drm/i915/display: move dmc_firmware_path to display paramsJani Nikula6-9/+6
The dmc_firmware_path parameter is clearly a display parameter. Move it there so it's available to both i915 and xe modules. This also cleans up the ugly member in struct xe_device. v2: - New try with the NULL/"" param value issue resolved Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/7c8223b68fdafbc72bee0bf5afdb2ab15261cf00.1713519628.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22drm/i915/dmc: change how to disable DMC firmware using module paramJani Nikula2-10/+24
The distinction between the dmc_firmware_path module param being NULL and the empty string "" is problematic. It's not possible to set the parameter back to NULL via sysfs or debugfs. Remove the distinction, and consider NULL and the empty string to be the same thing, and use the platform default for them. This removes the possibility to disable DMC (and runtime PM) via i915.dmc_firmware_path="". Instead, use "/dev/null" as the magic firmware path to skip DMC firmware loading and disable runtime PM. v2: Add support for i915.dmc_firmware_path="/dev/null" (Gustavo) Cc: Gustavo Sousa <gustavo.sousa@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8695aca8a6643e36bb680bc2dcab97c637e70b00.1713519628.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22drm/i915/dmc: split out per-platform firmware path selectionJani Nikula1-42/+54
The big if ladder clutters intel_dmc_init(). Split it out to a separate function. Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/fe3d7b2b18c317a2f924f2023271d38afee3b18a.1713519628.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22drm/i915/dmc: improve firmware parse failure propagationJani Nikula1-17/+24
Return failures from parse_dmc_fw() instead of relying on intel_dmc_has_payload(). Handle and error report them slightly better, including a new error message for when the firmware does not contain the main program. v2: Print specific error message for payload not found (Gustavo) Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/18833681978ec3ac779cce943221cc5b532c7c45.1713519628.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-22drm/i915/dmc: handle request_firmware() errors separatelyJani Nikula1-2/+9
Clarify request_firmware() error handling. Don't proceed to trying to parse non-existent firmware or check for payload when request_firmware() failed to begin with. There's no reason to release_firmware() either when request_firmware() failed. Also move the message about DMC firmware homepage here, as in other cases the user probably has some firmware, although its parsing fails for some reason. Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/0654bb3480f8d2103225d26f665badead5495532.1713519628.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915: Enable per-lane DP drive settings for bxt/glkVille Syrjälä1-1/+1
Now the bxt/glk PHY code is ready for per-lane drive settings so enable it. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-9-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915/dpio: Program bxt/glk PHY TX registers per-laneVille Syrjälä1-13/+22
Program each bxt/glk PHY TX lane with its own settings instead of blasting them all with the same stuff via group access. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-8-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915/dpio: s/ddi/dpio/ for bxt/glk PHY stuffVille Syrjälä5-102/+102
Since all of this lives in intel_dpio_phy.c let's rename the bxt/glk functions to have bxt_dpio_phy_ namespace. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-7-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915/dpio: Use intel_de_rmw() for BXT DPIO latency optim setupVille Syrjälä1-9/+3
Replace the hand rolled intel_de_rmw() with the real thing. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-6-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915/dpio: Introdude bxt_ddi_phy_rmw_grp()Ville Syrjälä1-22/+39
Add a helper to do the "read from one per-lane register and write to the group register" rmw cycle. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-5-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-04-19drm/i915/dpio: Extract bxt_dpio_phy_regs.hVille Syrjälä8-262/+279
Extract the BXT/GLK DPIO PHY register definitions into their own file. v2: Adjust gvt accordingly Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240417151232.32175-1-ville.syrjala@linux.intel.com
2024-04-19drm/i915/dpio: Add per-lane PHY TX register definitons for bxt/glkVille Syrjälä5-35/+35
Add consistent definitions for the per-lane PHY TX registers on bxt/glk. The current situation is a slight mess with some registers having a LN0 define, while others have a parametrized per-lane definition. v2: Adjust gvt accordingly Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240417151211.32135-1-ville.syrjala@linux.intel.com
2024-04-19drm/i915/dpio: Clean up bxt/glk PHY registersVille Syrjälä2-59/+59
Use REG_BIT() & co. for the bxt/glk PHY register definitons. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-28 01:02:49 +0300