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authorDave Airlie <airlied@redhat.com>2025-06-23 10:49:25 +1000
committerDave Airlie <airlied@redhat.com>2025-06-23 10:49:27 +1000
commit36c52fb703e90388285963fc8f03cf60f76cbe4c (patch)
treead4ac082742408d54a7a165d9fb006d06f8d064a /drivers/gpu/drm/i915/intel_sbi.c
parent9356b50af547e872d9191754c72c83ff6be3b97c (diff)
parentb2f7e30d2e4a34fcee8111d713bef4f29dc23c77 (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.c94
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);
-}