From: Luca Coelho <luca@coelho.fi>
To: linux-wireless@vger.kernel.org
Cc: kvalo@codeaurora.org, luciano.coelho@intel.com,
Sara Sharon <sara.sharon@intel.com>
Subject: [PATCH 08/25] iwlwifi: mvm: simplify paging allocation code
Date: Tue, 24 Jan 2017 00:03:33 +0200 [thread overview]
Message-ID: <20170123220350.25305-9-luca@coelho.fi> (raw)
In-Reply-To: <20170123220350.25305-1-luca@coelho.fi>
From: Sara Sharon <sara.sharon@intel.com>
Some of the code there is duplicate while the only change is
the block size. Unifying it shortens the code and make the
difference clearer.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 61 +++++++----------------------
1 file changed, 15 insertions(+), 46 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 872066317fa5..04fe1051b1e5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -259,9 +259,7 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
{
struct page *block;
dma_addr_t phys = 0;
- int blk_idx = 0;
- int order, num_of_pages;
- int dma_enabled;
+ int blk_idx, order, num_of_pages, size, dma_enabled;
if (mvm->fw_paging_db[0].fw_paging_block)
return 0;
@@ -274,7 +272,6 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
mvm->num_of_paging_blk = ((num_of_pages - 1) /
NUM_OF_PAGE_PER_GROUP) + 1;
-
mvm->num_of_pages_in_last_blk =
num_of_pages -
NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
@@ -284,46 +281,13 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
mvm->num_of_paging_blk,
mvm->num_of_pages_in_last_blk);
- /* allocate block of 4Kbytes for paging CSS */
- order = get_order(FW_PAGING_SIZE);
- block = alloc_pages(GFP_KERNEL, order);
- if (!block) {
- /* free all the previous pages since we failed */
- iwl_free_fw_paging(mvm);
- return -ENOMEM;
- }
-
- mvm->fw_paging_db[blk_idx].fw_paging_block = block;
- mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
-
- if (dma_enabled) {
- phys = dma_map_page(mvm->trans->dev, block, 0,
- PAGE_SIZE << order, DMA_BIDIRECTIONAL);
- if (dma_mapping_error(mvm->trans->dev, phys)) {
- /*
- * free the previous pages and the current one since
- * we failed to map_page.
- */
- iwl_free_fw_paging(mvm);
- return -ENOMEM;
- }
- mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
- } else {
- mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
- blk_idx << BLOCK_2_EXP_SIZE;
- }
-
- IWL_DEBUG_FW(mvm,
- "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
- order);
-
/*
- * allocate blocks in dram.
- * since that CSS allocated in fw_paging_db[0] loop start from index 1
+ * Allocate CSS and paging blocks in dram.
*/
- for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
- /* allocate block of PAGING_BLOCK_SIZE (32K) */
- order = get_order(PAGING_BLOCK_SIZE);
+ for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
+ /* For CSS allocate 4KB, for others PAGING_BLOCK_SIZE (32K) */
+ size = blk_idx ? PAGING_BLOCK_SIZE : FW_PAGING_SIZE;
+ order = get_order(size);
block = alloc_pages(GFP_KERNEL, order);
if (!block) {
/* free all the previous pages since we failed */
@@ -332,7 +296,7 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
}
mvm->fw_paging_db[blk_idx].fw_paging_block = block;
- mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
+ mvm->fw_paging_db[blk_idx].fw_paging_size = size;
if (dma_enabled) {
phys = dma_map_page(mvm->trans->dev, block, 0,
@@ -353,9 +317,14 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
blk_idx << BLOCK_2_EXP_SIZE;
}
- IWL_DEBUG_FW(mvm,
- "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
- order);
+ if (!blk_idx)
+ IWL_DEBUG_FW(mvm,
+ "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
+ order);
+ else
+ IWL_DEBUG_FW(mvm,
+ "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
+ order);
}
return 0;
--
2.11.0
next prev parent reply other threads:[~2017-01-23 22:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-23 22:03 [PATCH 00/25] iwlwifi: updates intended for v4.11 2017-01-23 Luca Coelho
2017-01-23 22:03 ` [PATCH 01/25] iwlwifi: mvm: expose device timestamp in radiotap Luca Coelho
2017-01-23 22:03 ` [PATCH 02/25] iwlwifi: mvm: don't restart HW if suspend fails with unified image Luca Coelho
2017-01-23 22:03 ` [PATCH 03/25] iwlwifi: mvm: accept arbitrary memory dump TLVs Luca Coelho
2017-01-23 22:03 ` [PATCH 04/25] iwlwifi: mvm: make iwl_dump_prph() void Luca Coelho
2017-01-23 22:03 ` [PATCH 05/25] iwlwifi: allow memory debug TLV to specify the memory type Luca Coelho
2017-01-26 7:43 ` [PATCH v2] " Luca Coelho
2017-01-23 22:03 ` [PATCH 06/25] iwlwifi: mvm: properly check for transport data in dump Luca Coelho
2017-01-23 22:03 ` [PATCH 07/25] iwlwifi: mvm: bump max API to 28 Luca Coelho
2017-01-23 22:03 ` Luca Coelho [this message]
2017-01-23 22:03 ` [PATCH 09/25] iwlwifi: mvm: replace the number of blocks calculation Luca Coelho
2017-01-23 22:03 ` [PATCH 10/25] iwlwifi: enlarge number of ucode sections Luca Coelho
2017-01-23 22:03 ` [PATCH 11/25] iwlwifi: mvm: change iwl_mvm_tx_csum to return value Luca Coelho
2017-01-26 7:24 ` [PATCH v2] " Luca Coelho
2017-01-23 22:03 ` [PATCH 12/25] iwlwifi: mvm: separate rate calculation to a new function Luca Coelho
2017-01-23 22:03 ` [PATCH 13/25] iwlwifi: mvm: support version 2 of stored beacon notification Luca Coelho
2017-01-23 22:03 ` [PATCH 14/25] iwlwifi: fix MODULE_FIRMWARE for 6030 Luca Coelho
2017-01-23 22:03 ` [PATCH 15/25] iwlwifi: mvm: remove unused variable in iwl_mvm_handle_statistics() Luca Coelho
2017-01-23 22:03 ` [PATCH 16/25] iwlwifi: mvm: rs: Remove unused 'mvmvif'/'mvmsta' variables Luca Coelho
2017-01-23 22:03 ` [PATCH 17/25] iwlwifi: mvm: rs: Remove unused 'mcs' variable Luca Coelho
2017-01-23 22:03 ` [PATCH 18/25] iwlwifi: pcie: trans: Remove unused 'shift_param' Luca Coelho
2017-01-23 22:03 ` [PATCH 19/25] iwlwifi: dvm: make rs_tl_get_load() return void Luca Coelho
2017-01-23 22:03 ` [PATCH 20/25] iwlwifi: pcie: cleanup rfkill checks Luca Coelho
2017-01-23 22:03 ` [PATCH 21/25] iwlwifi: mvm: remove unused sta_id variable in iwl_mvm_change_queue_owner() Luca Coelho
2017-01-23 22:03 ` [PATCH 22/25] iwlwifi: dvm: remove unused variable compiler warning in debugfs.c Luca Coelho
2017-01-23 22:03 ` [PATCH 23/25] iwlwifi: mvm: mark ret as maybe_unused in iwl_dbgfs_fw_restart_write() Luca Coelho
2017-01-23 22:03 ` [PATCH 24/25] iwlwifi: mvm: use mvm_disable_queue instead of sharing logic Luca Coelho
2017-01-26 7:34 ` [PATCH v2] " Luca Coelho
2017-01-23 22:03 ` [PATCH 25/25] iwlwifi: mvm: cleanup redundant assignment Luca Coelho
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