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| author | Joerg Roedel <jroedel@suse.de> | 2015-10-20 17:33:41 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-10-21 11:30:33 +0200 |
| commit | deba4bce168a87ef90211ba69850d3428b453765 (patch) | |
| tree | 99b3f037d78800eefc6c0edc40027add1b145581 /drivers/iommu/amd_iommu_init.c | |
| parent | ca9cab3a5a9ea2ff03d761494b002897e2e3c4b5 (diff) | |
| download | lwn-deba4bce168a87ef90211ba69850d3428b453765.tar.gz lwn-deba4bce168a87ef90211ba69850d3428b453765.zip | |
iommu/amd: Remove cmd_buf_size and evt_buf_size from struct amd_iommu
The driver always uses a constant size for these buffers
anyway, so there is no need to waste memory to store the
sizes.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu_init.c')
| -rw-r--r-- | drivers/iommu/amd_iommu_init.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 3ba1ee709824..3a977a751dad 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -521,8 +521,6 @@ static u8 * __init alloc_command_buffer(struct amd_iommu *iommu) if (cmd_buf == NULL) return NULL; - iommu->cmd_buf_size = CMD_BUFFER_SIZE | CMD_BUFFER_UNINITIALIZED; - return cmd_buf; } @@ -557,13 +555,11 @@ static void iommu_enable_command_buffer(struct amd_iommu *iommu) &entry, sizeof(entry)); amd_iommu_reset_cmd_buffer(iommu); - iommu->cmd_buf_size &= ~(CMD_BUFFER_UNINITIALIZED); } static void __init free_command_buffer(struct amd_iommu *iommu) { - free_pages((unsigned long)iommu->cmd_buf, - get_order(iommu->cmd_buf_size & ~(CMD_BUFFER_UNINITIALIZED))); + free_pages((unsigned long)iommu->cmd_buf, get_order(CMD_BUFFER_SIZE)); } /* allocates the memory where the IOMMU will log its events to */ @@ -575,8 +571,6 @@ static u8 * __init alloc_event_buffer(struct amd_iommu *iommu) if (iommu->evt_buf == NULL) return NULL; - iommu->evt_buf_size = EVT_BUFFER_SIZE; - return iommu->evt_buf; } |