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lib: sbi: Rename map_range/unmap_range functions

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*_map_range and *_unmap_range functions are required
in M-Mode to get the temporary access to S-Mode and U-Mode
regions. Thse functions only operate using the TYPE_MEMORY
memory protection mechanisms. Rename them to reflect the
actual usage of these functions and let generic map/unmap_range
names to implement generic functions

Signed-off-by: Rahul Pathak <rahul.pathak@oss.qualcomm.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Pawandeep Oza <pawandeep.oza@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260820121309.2551296-2-rahul.pathak@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Rahul Pathak
2026-09-05 12:52:39 +05:30
committed by Anup Patel
parent 7774b82e4a
commit 35af7c8c7e
8 changed files with 72 additions and 67 deletions
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lib/sbi/sbi_hart_pmp.c
+5 -5
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@@ -135,7 +135,7 @@ int sbi_hart_pmp_get(unsigned int n, unsigned long *prot_out, unsigned long *add
* When shared memory access is required, the physical address
* should be programmed into the first PMP entry with R/W
* permissions to the M-mode. Once the work is done, it should be
* unmapped. sbi_hart_protection_map_range/sbi_hart_protection_unmap_range
* unmapped. sbi_hart_protection_temp_map_range/sbi_hart_protection_temp_unmap_range
* function pair should be used to map/unmap the shared memory.
*/
#define SBI_SMEPMP_RESV_ENTRY 0
@@ -327,7 +327,7 @@ static int sbi_hart_smepmp_configure(struct sbi_scratch *scratch,
return 0;
}
static int sbi_hart_smepmp_map_range(struct sbi_scratch *scratch,
static int sbi_hart_smepmp_temp_map_range(struct sbi_scratch *scratch,
unsigned long addr, unsigned long size)
{
/* shared R/W access for M and S/U mode */
@@ -359,7 +359,7 @@ static int sbi_hart_smepmp_map_range(struct sbi_scratch *scratch,
return SBI_OK;
}
static int sbi_hart_smepmp_unmap_range(struct sbi_scratch *scratch,
static int sbi_hart_smepmp_temp_unmap_range(struct sbi_scratch *scratch,
unsigned long addr, unsigned long size)
{
sbi_platform_pmp_disable(sbi_platform_ptr(scratch), SBI_SMEPMP_RESV_ENTRY);
@@ -436,8 +436,8 @@ static struct sbi_hart_protection epmp_protection = {
.type = SBI_HART_PROTECTION_TYPE_MEMORY,
.configure = sbi_hart_smepmp_configure,
.unconfigure = sbi_hart_pmp_unconfigure,
.map_range = sbi_hart_smepmp_map_range,
.unmap_range = sbi_hart_smepmp_unmap_range,
.temp_map_range = sbi_hart_smepmp_temp_map_range,
.temp_unmap_range = sbi_hart_smepmp_temp_unmap_range,
};
int sbi_hart_pmp_init(struct sbi_scratch *scratch)