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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/staging/media/atomisp/pci/sh_css_metrics.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/staging/media/atomisp/pci/sh_css_metrics.c')
-rw-r--r-- | drivers/staging/media/atomisp/pci/sh_css_metrics.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/sh_css_metrics.c b/drivers/staging/media/atomisp/pci/sh_css_metrics.c new file mode 100644 index 0000000000..8ded6cdd15 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/sh_css_metrics.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include "assert_support.h" +#include "sh_css_metrics.h" + +#include "sp.h" +#include "isp.h" + +#include "sh_css_internal.h" + +#define MULTIPLE_PCS 0 +#define SUSPEND 0 +#define NOF_PCS 1 +#define RESUME_MASK 0x8 +#define STOP_MASK 0x0 + +static bool pc_histogram_enabled; +static struct sh_css_pc_histogram *isp_histogram; +static struct sh_css_pc_histogram *sp_histogram; + +struct sh_css_metrics sh_css_metrics; + +void +sh_css_metrics_start_frame(void) +{ + sh_css_metrics.frame_metrics.num_frames++; +} + +static void +clear_histogram(struct sh_css_pc_histogram *histogram) +{ + unsigned int i; + + assert(histogram); + + for (i = 0; i < histogram->length; i++) { + histogram->run[i] = 0; + histogram->stall[i] = 0; + histogram->msink[i] = 0xFFFF; + } +} + +void +sh_css_metrics_enable_pc_histogram(bool enable) +{ + pc_histogram_enabled = enable; +} + +static void +make_histogram(struct sh_css_pc_histogram *histogram, unsigned int length) +{ + assert(histogram); + + if (histogram->length) + return; + if (histogram->run) + return; + histogram->run = kvmalloc(length * sizeof(*histogram->run), + GFP_KERNEL); + if (!histogram->run) + return; + histogram->stall = kvmalloc(length * sizeof(*histogram->stall), + GFP_KERNEL); + if (!histogram->stall) + return; + histogram->msink = kvmalloc(length * sizeof(*histogram->msink), + GFP_KERNEL); + if (!histogram->msink) + return; + + histogram->length = length; + clear_histogram(histogram); +} + +static void +insert_binary_metrics(struct sh_css_binary_metrics **l, + struct sh_css_binary_metrics *metrics) +{ + assert(l); + assert(*l); + assert(metrics); + + for (; *l; l = &(*l)->next) + if (*l == metrics) + return; + + *l = metrics; + metrics->next = NULL; +} + +void +sh_css_metrics_start_binary(struct sh_css_binary_metrics *metrics) +{ + assert(metrics); + + if (!pc_histogram_enabled) + return; + + isp_histogram = &metrics->isp_histogram; + sp_histogram = &metrics->sp_histogram; + make_histogram(isp_histogram, ISP_PMEM_DEPTH); + make_histogram(sp_histogram, SP_PMEM_DEPTH); + insert_binary_metrics(&sh_css_metrics.binary_metrics, metrics); +} + +void +sh_css_metrics_sample_pcs(void) +{ + bool stall; + unsigned int pc; + unsigned int msink; + + + + if (!pc_histogram_enabled) + return; + + if (isp_histogram) { + msink = isp_ctrl_load(ISP0_ID, ISP_CTRL_SINK_REG); + pc = isp_ctrl_load(ISP0_ID, ISP_PC_REG); + + isp_histogram->msink[pc] &= msink; + stall = (msink != 0x7FF); + + if (stall) + isp_histogram->stall[pc]++; + else + isp_histogram->run[pc]++; + } + + if (sp_histogram && 0) { + msink = sp_ctrl_load(SP0_ID, SP_CTRL_SINK_REG); + pc = sp_ctrl_load(SP0_ID, SP_PC_REG); + sp_histogram->msink[pc] &= msink; + stall = (msink != 0x7FF); + if (stall) + sp_histogram->stall[pc]++; + else + sp_histogram->run[pc]++; + } +} |