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94 lines
3.5 KiB
Diff
94 lines
3.5 KiB
Diff
From 6003eb2feabdae1a79b496c3d010b6d1363f1fac Mon Sep 17 00:00:00 2001
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From: Eric Snowberg <eric.snowberg@oracle.com>
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Date: Mon, 26 Feb 2018 17:34:14 -0800
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Subject: [PATCH] ieee1275: decode-unit command for 4 addr cell devs
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decode-unit ( addr len -- phys.lo ... phys.hi )
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Convert text unit-string to physical address.
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Convert unit-string, the text string representation, to phys.lo ... phys.hi,
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the numerical representation of a physical address within the address space
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defined by this device node. The number of cells in the list
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phys.lo ... phys.hi is determined by the value of the #address-cells
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property of this node.
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This function is for devices with #address-cells == 4
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Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/kern/ieee1275/ieee1275.c | 41 ++++++++++++++++++++++++++++++++++++++
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include/grub/ieee1275/ieee1275.h | 7 ++++++-
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2 files changed, 47 insertions(+), 1 deletion(-)
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diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
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index 98217029f45..b0ac6f9f9a8 100644
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--- a/grub-core/kern/ieee1275/ieee1275.c
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+++ b/grub-core/kern/ieee1275/ieee1275.c
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@@ -482,6 +482,47 @@ grub_ieee1275_close (grub_ieee1275_ihandle_t ihandle)
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return 0;
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}
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+int
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+grub_ieee1275_decode_unit4 (grub_ieee1275_ihandle_t ihandle,
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+ void *addr, grub_size_t size,
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+ grub_uint32_t *phy_lo, grub_uint32_t *phy_hi,
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+ grub_uint32_t *lun_lo, grub_uint32_t *lun_hi)
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+{
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+ struct decode_args
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+ {
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+ struct grub_ieee1275_common_hdr common;
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+ grub_ieee1275_cell_t method;
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+ grub_ieee1275_cell_t ihandle;
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+ grub_ieee1275_cell_t size;
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+ grub_ieee1275_cell_t addr;
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+ grub_ieee1275_cell_t catch_result;
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+ grub_ieee1275_cell_t tgt_h;
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+ grub_ieee1275_cell_t tgt_l;
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+ grub_ieee1275_cell_t lun_h;
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+ grub_ieee1275_cell_t lun_l;
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+ }
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+ args;
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+
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+ INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 5);
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+ args.method = (grub_ieee1275_cell_t) "decode-unit";
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+ args.ihandle = ihandle;
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+ args.size = size;
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+ args.addr = (grub_ieee1275_cell_t) addr;
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+ args.catch_result = 1;
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+
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+ if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.catch_result))
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+ {
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+ grub_error (GRUB_ERR_OUT_OF_RANGE, "decode-unit failed\n");
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+ return -1;
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+ }
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+
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+ *phy_lo = args.tgt_l;
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+ *phy_hi = args.tgt_h;
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+ *lun_lo = args.lun_l;
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+ *lun_hi = args.lun_h;
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+ return 0;
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+}
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+
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int
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grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
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grub_addr_t *result)
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diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
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index 8e425130327..534406458b2 100644
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--- a/include/grub/ieee1275/ieee1275.h
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+++ b/include/grub/ieee1275/ieee1275.h
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@@ -210,7 +210,12 @@ int EXPORT_FUNC(grub_ieee1275_set_property) (grub_ieee1275_phandle_t phandle,
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int EXPORT_FUNC(grub_ieee1275_set_color) (grub_ieee1275_ihandle_t ihandle,
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int index, int r, int g, int b);
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int EXPORT_FUNC(grub_ieee1275_milliseconds) (grub_uint32_t *msecs);
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-
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+int EXPORT_FUNC(grub_ieee1275_decode_unit4) (grub_ieee1275_ihandle_t ihandle,
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+ void *addr, grub_size_t size,
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+ grub_uint32_t *phy_lo,
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+ grub_uint32_t *phy_hi,
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+ grub_uint32_t *lun_lo,
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+ grub_uint32_t *lun_hi);
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grub_err_t EXPORT_FUNC(grub_claimmap) (grub_addr_t addr, grub_size_t size);
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