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authorDavid Gibson <david@gibson.dropbear.id.au>2015-02-03 08:36:21 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2015-03-23 06:29:40 +0300
commitf5718726714cd6114876c4e3ca9b6992ab81176c (patch)
treec8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/macintosh/rack-meter.c
parent9eccca0843205f87c00404b663188b88eb248051 (diff)
downloadlinux-f5718726714cd6114876c4e3ca9b6992ab81176c.tar.xz
powerpc: Move Power Macintosh drivers to generic byteswappers
ppc has special instruction forms to efficiently load and store values in non-native endianness. These can be accessed via the arch-specific {ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h. However, gcc is perfectly capable of generating the byte-reversing load/store instructions when using the normal, generic cpu_to_le*() and le*_to_cpu() functions eaning the arch-specific functions don't have much point. Worse the "le" in the names of the arch specific functions is now misleading, because they always generate byte-reversing forms, but some ppc machines can now run a little-endian kernel. To start getting rid of the arch-specific forms, this patch removes them from all the old Power Macintosh drivers, replacing them with the generic byteswappers. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/macintosh/rack-meter.c')
-rw-r--r--drivers/macintosh/rack-meter.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index 4192901cab40..048901a1111a 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -182,31 +182,31 @@ static void rackmeter_setup_dbdma(struct rackmeter *rm)
/* Prepare 4 dbdma commands for the 2 buffers */
memset(cmd, 0, 4 * sizeof(struct dbdma_cmd));
- st_le16(&cmd->req_count, 4);
- st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
- st_le32(&cmd->phy_addr, rm->dma_buf_p +
+ cmd->req_count = cpu_to_le16(4);
+ cmd->command = cpu_to_le16(STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+ cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
offsetof(struct rackmeter_dma, mark));
- st_le32(&cmd->cmd_dep, 0x02000000);
+ cmd->cmd_dep = cpu_to_le32(0x02000000);
cmd++;
- st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
- st_le16(&cmd->command, OUTPUT_MORE);
- st_le32(&cmd->phy_addr, rm->dma_buf_p +
+ cmd->req_count = cpu_to_le16(SAMPLE_COUNT * 4);
+ cmd->command = cpu_to_le16(OUTPUT_MORE);
+ cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
offsetof(struct rackmeter_dma, buf1));
cmd++;
- st_le16(&cmd->req_count, 4);
- st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
- st_le32(&cmd->phy_addr, rm->dma_buf_p +
+ cmd->req_count = cpu_to_le16(4);
+ cmd->command = cpu_to_le16(STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+ cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
offsetof(struct rackmeter_dma, mark));
- st_le32(&cmd->cmd_dep, 0x01000000);
+ cmd->cmd_dep = cpu_to_le32(0x01000000);
cmd++;
- st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
- st_le16(&cmd->command, OUTPUT_MORE | BR_ALWAYS);
- st_le32(&cmd->phy_addr, rm->dma_buf_p +
+ cmd->req_count = cpu_to_le16(SAMPLE_COUNT * 4);
+ cmd->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS);
+ cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
offsetof(struct rackmeter_dma, buf2));
- st_le32(&cmd->cmd_dep, rm->dma_buf_p);
+ cmd->cmd_dep = cpu_to_le32(rm->dma_buf_p);
rackmeter_do_pause(rm, 0);
}