diff options
| author | Dave Airlie <airlied@redhat.com> | 2025-06-23 10:49:25 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2025-06-23 10:49:27 +1000 |
| commit | 36c52fb703e90388285963fc8f03cf60f76cbe4c (patch) | |
| tree | ad4ac082742408d54a7a165d9fb006d06f8d064a /drivers/gpu/drm/i915/intel_sbi.c | |
| parent | 9356b50af547e872d9191754c72c83ff6be3b97c (diff) | |
| parent | b2f7e30d2e4a34fcee8111d713bef4f29dc23c77 (diff) | |
Merge tag 'drm-intel-next-2025-06-18' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
drm/i915 feature pull for v6.17:
Features and functionality:
- Add support for DSC fractional link bpp on DP MST (Imre)
- Add support for simultaneous Panel Replay and Adaptive Sync (Jouni)
- Add support for PTL+ double buffered LUT registers (Chaitanya, Ville)
- Add PIPEDMC event handling in preparation for flip queue (Ville)
Refactoring and cleanups:
- Rename lots of DPLL interfaces to unify them (Suraj)
- Allocate struct intel_display dynamically (Jani)
- Abstract VLV IOSF sideband better (Jani)
- Use str_true_false() helper (Yumeng Fang)
- Refactor DSB code in preparation for flip queue (Ville)
- Use drm_modeset_lock_assert_held() instead of open coding (Luca)
- Remove unused arg from skl_scaler_get_filter_select() (Luca)
- Split out a separate display register header (Jani)
- Abstract DRAM detection better (Jani)
- Convert LPT/WPT SBI sideband to struct intel_display (Jani)
Fixes:
- Fix DSI HS command dispatch with forced pipeline flush (Gareth Yu)
- Fix BMG and LNL+ DP adaptive sync SDP programming (Ankit)
- Fix error path for xe display workqueue allocation (Haoxiang Li)
- Disable DP AUX access probe where not required (Imre)
- Fix DKL PHY access if the port is invalid (Luca)
- Fix PSR2_SU_STATUS access on ADL+ (Jouni)
- Add sanity checks for porch and sync on BXT/GLK DSI (Ville)
DRM core changes:
- Change AUX DPCD access probe address (Imre)
- Refactor EDID quirks, amd make them available to drivers (Imre)
- Add quirk for DPCD access probe (Imre)
- Add DPCD definitions for Panel Replay capabilities (Jouni)
Merges:
- Backmerges to sync with v6.15-rcs and v6.16-rc1 (Jani)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/fff9f231850ed410bd81b53de43eff0b98240d31@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sbi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sbi.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/drivers/gpu/drm/i915/intel_sbi.c b/drivers/gpu/drm/i915/intel_sbi.c deleted file mode 100644 index 41e85ac773dc..000000000000 --- a/drivers/gpu/drm/i915/intel_sbi.c +++ /dev/null @@ -1,94 +0,0 @@ -// SPDX-License-Identifier: MIT -/* - * Copyright © 2013-2021 Intel Corporation - * - * LPT/WPT IOSF sideband. - */ - -#include "i915_drv.h" -#include "intel_sbi.h" -#include "i915_reg.h" - -/* SBI access */ -static int intel_sbi_rw(struct drm_i915_private *i915, u16 reg, - enum intel_sbi_destination destination, - u32 *val, bool is_read) -{ - struct intel_uncore *uncore = &i915->uncore; - u32 cmd; - - lockdep_assert_held(&i915->sbi_lock); - - if (intel_wait_for_register_fw(uncore, - SBI_CTL_STAT, SBI_BUSY, 0, - 100)) { - drm_err(&i915->drm, - "timeout waiting for SBI to become ready\n"); - return -EBUSY; - } - - intel_uncore_write_fw(uncore, SBI_ADDR, (u32)reg << 16); - intel_uncore_write_fw(uncore, SBI_DATA, is_read ? 0 : *val); - - if (destination == SBI_ICLK) - cmd = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRRD; - else - cmd = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IORD; - if (!is_read) - cmd |= BIT(8); - intel_uncore_write_fw(uncore, SBI_CTL_STAT, cmd | SBI_BUSY); - - if (__intel_wait_for_register_fw(uncore, - SBI_CTL_STAT, SBI_BUSY, 0, - 100, 100, &cmd)) { - drm_err(&i915->drm, - "timeout waiting for SBI to complete read\n"); - return -ETIMEDOUT; - } - - if (cmd & SBI_RESPONSE_FAIL) { - drm_err(&i915->drm, "error during SBI read of reg %x\n", reg); - return -ENXIO; - } - - if (is_read) - *val = intel_uncore_read_fw(uncore, SBI_DATA); - - return 0; -} - -void intel_sbi_lock(struct drm_i915_private *i915) -{ - mutex_lock(&i915->sbi_lock); -} - -void intel_sbi_unlock(struct drm_i915_private *i915) -{ - mutex_unlock(&i915->sbi_lock); -} - -u32 intel_sbi_read(struct drm_i915_private *i915, u16 reg, - enum intel_sbi_destination destination) -{ - u32 result = 0; - - intel_sbi_rw(i915, reg, destination, &result, true); - - return result; -} - -void intel_sbi_write(struct drm_i915_private *i915, u16 reg, u32 value, - enum intel_sbi_destination destination) -{ - intel_sbi_rw(i915, reg, destination, &value, false); -} - -void intel_sbi_init(struct drm_i915_private *i915) -{ - mutex_init(&i915->sbi_lock); -} - -void intel_sbi_fini(struct drm_i915_private *i915) -{ - mutex_destroy(&i915->sbi_lock); -} |
