797b0e9be0
Lmem init check should be done only after pcode initialization
status is complete. Move lmem init check after pcode status
check. Also wait for a short while after pcode status check
to allow completion of the task.
Failing to do so, can lead to aborting the module load
leaving the system unusable. Wait until the lmem initialization
is complete within a timeout (60s) or till the user aborts.
v2: use bool as return type
re-order the code comment (Rodrigo)
add comment for deferring probe (Himal)
v3: rebase
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240410085005.1126343-3-riana.tauro@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021-2023 Intel Corporation
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*/
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#ifndef _XE_MMIO_H_
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#define _XE_MMIO_H_
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#include <linux/delay.h>
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#include <linux/io-64-nonatomic-lo-hi.h>
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#include "regs/xe_reg_defs.h"
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#include "xe_device_types.h"
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#include "xe_gt_printk.h"
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#include "xe_gt_types.h"
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struct drm_device;
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struct drm_file;
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struct xe_device;
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#define LMEM_BAR 2
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int xe_mmio_init(struct xe_device *xe);
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void xe_mmio_probe_tiles(struct xe_device *xe);
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u8 xe_mmio_read8(struct xe_gt *gt, struct xe_reg reg);
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u16 xe_mmio_read16(struct xe_gt *gt, struct xe_reg reg);
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void xe_mmio_write32(struct xe_gt *gt, struct xe_reg reg, u32 val);
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u32 xe_mmio_read32(struct xe_gt *gt, struct xe_reg reg);
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u32 xe_mmio_rmw32(struct xe_gt *gt, struct xe_reg reg, u32 clr, u32 set);
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int xe_mmio_write32_and_verify(struct xe_gt *gt, struct xe_reg reg, u32 val, u32 mask, u32 eval);
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bool xe_mmio_in_range(const struct xe_gt *gt, const struct xe_mmio_range *range, struct xe_reg reg);
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int xe_mmio_probe_vram(struct xe_device *xe);
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u64 xe_mmio_read64_2x32(struct xe_gt *gt, struct xe_reg reg);
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int xe_mmio_wait32(struct xe_gt *gt, struct xe_reg reg, u32 mask, u32 val, u32 timeout_us,
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u32 *out_val, bool atomic);
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#endif
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