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https://github.com/openwrt/openwrt.git
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62 lines
2.0 KiB
Diff
62 lines
2.0 KiB
Diff
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From 068cfca9e8c54902c45b8c35b49191c766d346c9 Mon Sep 17 00:00:00 2001
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From: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>
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Date: Wed, 10 Jan 2018 04:32:20 +0900
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Subject: [PATCH 155/454] vcsm: Add no-op cache operation constant
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Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>
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---
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drivers/char/broadcom/vc_sm/vmcs_sm.c | 10 ++++++++++
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include/linux/broadcom/vmcs_sm_ioctl.h | 1 +
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2 files changed, 11 insertions(+)
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--- a/drivers/char/broadcom/vc_sm/vmcs_sm.c
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+++ b/drivers/char/broadcom/vc_sm/vmcs_sm.c
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@@ -1269,6 +1269,8 @@ static int clean_invalid_mem_2d(const vo
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}
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switch (cache_op) {
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+ case VCSM_CACHE_OP_NOP:
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+ return 0;
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case VCSM_CACHE_OP_INV:
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op_fn = dmac_inv_range;
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break;
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@@ -1312,6 +1314,8 @@ static int clean_invalid_resource(const
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return 0;
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switch (cache_op) {
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+ case VCSM_CACHE_OP_NOP:
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+ return 0;
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case VCSM_CACHE_OP_INV:
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stat_attempt = INVALID;
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stat_failure = INVALID_FAIL;
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@@ -2936,6 +2940,9 @@ static long vc_sm_ioctl(struct file *fil
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goto out;
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}
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for (i = 0; i < sizeof(ioparam.s) / sizeof(*ioparam.s); i++) {
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+ if (ioparam.s[i].cmd == VCSM_CACHE_OP_NOP)
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+ break;
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+
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/* Locate resource from GUID. */
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resource =
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vmcs_sm_acquire_resource(file_data, ioparam.s[i].handle);
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@@ -2989,6 +2996,9 @@ static long vc_sm_ioctl(struct file *fil
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ret = clean_invalid_mem_2d((void __user*) op->start_address,
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op->block_count, op->block_size,
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op->inter_block_stride, op->invalidate_mode);
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+ if (op->invalidate_mode == VCSM_CACHE_OP_NOP)
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+ continue;
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+
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if (ret)
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break;
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}
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--- a/include/linux/broadcom/vmcs_sm_ioctl.h
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+++ b/include/linux/broadcom/vmcs_sm_ioctl.h
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@@ -172,6 +172,7 @@ struct vmcs_sm_ioctl_cache {
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* Cache functions to be set to struct vmcs_sm_ioctl_clean_invalid cmd and
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* vmcs_sm_ioctl_clean_invalid2 invalidate_mode.
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*/
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+#define VCSM_CACHE_OP_NOP 0x00
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#define VCSM_CACHE_OP_INV 0x01
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#define VCSM_CACHE_OP_CLEAN 0x02
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#define VCSM_CACHE_OP_FLUSH 0x03
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