Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
soc: apple: sart: Make allow flags SART version dependent
SART versions that uses different allow flags will be added.
Reviewed-by: Sven Peter <sven@kernel.org>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Link: https://lore.kernel.org/r/20250821-t8015-nvme-v3-4-14a4178adf68@gmail.com
Signed-off-by: Sven Peter <sven@kernel.org>
authored by
Nick Chan
and committed by
Sven Peter
8409ebe2
940ce882
+9
-4
+9
-4
drivers/soc/apple/sart.c
+9
-4
drivers/soc/apple/sart.c
···
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#define APPLE_SART_MAX_ENTRIES 16
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-
/* This is probably a bitfield but the exact meaning of each bit is unknown. */
29
-
#define APPLE_SART_FLAGS_ALLOW 0xff
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-
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/* SARTv2 registers */
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#define APPLE_SART2_CONFIG(idx) (0x00 + 4 * (idx))
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#define APPLE_SART2_CONFIG_FLAGS GENMASK(31, 24)
···
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#define APPLE_SART2_PADDR(idx) (0x40 + 4 * (idx))
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#define APPLE_SART2_PADDR_SHIFT 12
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+
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#define APPLE_SART2_FLAGS_ALLOW 0xff
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/* SARTv3 registers */
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#define APPLE_SART3_CONFIG(idx) (0x00 + 4 * (idx))
···
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#define APPLE_SART3_SIZE_SHIFT 12
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#define APPLE_SART3_SIZE_MAX GENMASK(29, 0)
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#define APPLE_SART3_FLAGS_ALLOW 0xff
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+
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struct apple_sart_ops {
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void (*get_entry)(struct apple_sart *sart, int index, u8 *flags,
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phys_addr_t *paddr, size_t *size);
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void (*set_entry)(struct apple_sart *sart, int index, u8 flags,
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phys_addr_t paddr_shifted, size_t size_shifted);
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/* This is probably a bitfield but the exact meaning of each bit is unknown. */
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unsigned int flags_allow;
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unsigned int size_shift;
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unsigned int paddr_shift;
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size_t size_max;
···
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static struct apple_sart_ops sart_ops_v2 = {
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.get_entry = sart2_get_entry,
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.set_entry = sart2_set_entry,
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.flags_allow = APPLE_SART2_FLAGS_ALLOW,
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.size_shift = APPLE_SART2_CONFIG_SIZE_SHIFT,
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.paddr_shift = APPLE_SART2_PADDR_SHIFT,
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.size_max = APPLE_SART2_CONFIG_SIZE_MAX,
···
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static struct apple_sart_ops sart_ops_v3 = {
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.get_entry = sart3_get_entry,
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.set_entry = sart3_set_entry,
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.flags_allow = APPLE_SART3_FLAGS_ALLOW,
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.size_shift = APPLE_SART3_SIZE_SHIFT,
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.paddr_shift = APPLE_SART3_PADDR_SHIFT,
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.size_max = APPLE_SART3_SIZE_MAX,
···
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if (test_and_set_bit(i, &sart->used_entries))
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continue;
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-
ret = sart_set_entry(sart, i, APPLE_SART_FLAGS_ALLOW, paddr,
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+
ret = sart_set_entry(sart, i, sart->ops->flags_allow, paddr,
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size);
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if (ret) {
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dev_dbg(sart->dev,