diff options
| author | Matti Gottlieb <matti.gottlieb@intel.com> | 2015-07-15 16:19:29 +0300 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-08-04 21:29:37 +0300 |
| commit | a6c4fb4441f4641609bbb3e40da438ed57629db0 (patch) | |
| tree | 382f55674c2e9800246f7ebdb1e4f7d18abd6c07 /drivers/net/wireless/iwlwifi/iwl-fw-file.h | |
| parent | 75118fdb63496e4611ab50380499ddd62b9de69f (diff) | |
| download | linux-a6c4fb4441f4641609bbb3e40da438ed57629db0.tar.xz | |
iwlwifi: mvm: Add FW paging mechanism for the UMAC on PCI
Family 8000 products has 2 embedded processors, the first
known as LMAC (lower MAC) and implements the functionality from
previous products, the second one is known as UMAC (upper MAC)
and is used mainly for driver offloads as well as new features.
The UMAC is typically “less” real-time than the LMAC and is used
for higher level controls.
The UMAC's code/data size is estimated to be in the mega-byte arena,
taking into account the code it needs to replace in the driver and
the set of new features.
In order to allow the UMAC to execute code that is bigger than its code
memory, we allow the UMAC embedded processor to page out code pages on
DRAM.
When the device is master on the bus(PCI) the driver saves the UMAC's
image pages in blocks of 32K in the DRAM and sends the layout of the
pages to the FW. The FW can load / unload the pages on its own.
The driver can support up to 1 MB of pages.
Add paging mechanism for the UMAC on PCI in order to allow the program
to use a larger virtual space while using less physical memory on the
device.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-fw-file.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-fw-file.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h index 926e4568d36c..5d7f2d9cf180 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h @@ -132,6 +132,7 @@ enum iwl_ucode_tlv_type { IWL_UCODE_TLV_API_CHANGES_SET = 29, IWL_UCODE_TLV_ENABLED_CAPABILITIES = 30, IWL_UCODE_TLV_N_SCAN_CHANNELS = 31, + IWL_UCODE_TLV_PAGING = 32, IWL_UCODE_TLV_SEC_RT_USNIFFER = 34, IWL_UCODE_TLV_SDIO_ADMA_ADDR = 35, IWL_UCODE_TLV_FW_VERSION = 36, @@ -343,8 +344,9 @@ enum iwl_ucode_tlv_capa { * For 16.0 uCode and above, there is no differentiation between sections, * just an offset to the HW address. */ -#define IWL_UCODE_SECTION_MAX 12 +#define IWL_UCODE_SECTION_MAX 16 #define CPU1_CPU2_SEPARATOR_SECTION 0xFFFFCCCC +#define PAGING_SEPARATOR_SECTION 0xAAAABBBB /* uCode version contains 4 values: Major/Minor/API/Serial */ #define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) |