diff options
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C | 300 |
1 files changed, 144 insertions, 156 deletions
diff --git a/src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C b/src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C index ba2240e8a..7409c41db 100644 --- a/src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C +++ b/src/import/chips/p9/procedures/hwp/cache/p9_l3err_linedelete.C @@ -22,17 +22,21 @@ /* permissions and limitations under the License. */ /* */ /* IBM_PROLOG_END_TAG */ -//------------------------------------------------------------------------------ -// *| -// *! TITLE : p9_l3err_linedelete.C -// *! DESCRIPTION : Delete the L3 error cache line according to the error extraction information. -// *! -// *! OWNER NAME : Alex Taft Email: amtaft@us.ibm.com -// *! -// *! ADDITIONAL COMMENTS : -// *! See header file for additional comments. -//------------------------------------------------------------------------------ +///---------------------------------------------------------------------------- +/// +/// @file p9_l3err_linedelete.H +/// +/// @brief Delete the L3 error cache line according to the error extraction +/// information. +/// See header file for detailed description. +/// +/// *HWP HWP Owner : Alex Taft <amtaft@us.ibm.com> +/// *HWP FW Owner : Thi Tran <thi@us.ibm.com> +/// *HWP Team : Quad +/// *HWP Consumed by : PRDF +/// *HWP Level : 3 +///---------------------------------------------------------------------------- //------------------------------------------------------------------------------ // Includes @@ -46,161 +50,145 @@ const uint32_t BUSY_POLL_DELAY_IN_NS = 10000000; // 10ms const uint32_t BUSY_POLL_DELAY_IN_CYCLES = 20000000; // 10ms, assumming 2GHz -extern "C" -{ - //------------------------------------------------------------------------------ // Function definitions //------------------------------------------------------------------------------ +/// +/// @brief Utility function to check for a L3 purge operation to be completed. +/// This function polls the EX_PRD_PURGE_REG_L3_REQ bit of +/// EX_PRD_PURGE_REG. +/// - If this bit is clear before the input loop threshold is +/// reached, it returns FAPi2_RC_SUCCESS. +/// - Otherwise, it returns an error code. +/// +/// @param[in] i_target => EX chiplet target +/// @param[in] i_busyCount => Max busy count waiting for PURGE to complete. +/// @param[out] o_prdPurgeReg => EX_PRD_PURGE_CMD_REG value. +/// +fapi2::ReturnCode l3PurgeCompleteCheck( + const fapi2::Target<fapi2::TARGET_TYPE_EX>& i_target, + const uint64_t i_busyCount, + fapi2::buffer<uint64_t>& o_prdPurgeReg) +{ + FAPI_DBG("Entering l3PurgeCompleteCheck"); -//------------------------------------------------------------------------------ -// HWP entry point -//------------------------------------------------------------------------------ - fapi2::ReturnCode p9_l3err_linedelete(const fapi2::Target<fapi2::TARGET_TYPE_EX>& i_target, - const p9_l3err_extract_err_data& i_err_data, - const uint64_t p9_l3err_linedelete_TryBusyCounts) + // Wait EX_PRD_PURGE_CMD_REG_BUSY bit for a max input counter time + uint64_t l_loopCount = 0; + + do { + FAPI_TRY(fapi2::getScom(i_target, EX_PRD_PURGE_REG, o_prdPurgeReg), + "Error from getScom EX_PRD_PURGE_REG"); - uint8_t member = 0; - uint16_t cgc = 0; - uint64_t busy_reg_counter = 0; - fapi2::buffer<uint64_t> l_l3_l3cerrs_prd_purge_reg; - - bool reg_busy = 0; - bool prd_purge_busy = 1; - - // mark function entry - FAPI_DBG("Entering p9_l3err_linedelete..."); - - - // +---------------------------+ - // | L3 Line Delete Scom | - // +---------------------------+ - // |Bit(s)| Data | - // +------+--------------------+ - // | 0 | Trigger | - // +------+--------------------+ - // | 1:4 | Purge type (ld=0x2)| - // +------+--------------------+ - // | 5:8 | Don't care | - // +------+--------------------+ - // | 9 | Busy Error | - // +------+--------------------+ - // |12:16 | Member (1 of 20) | - // +------+--------------------+ - // |17:28 | CGC (addr 45:56) | - // +------+--------------------+ - // |29:63 | Don't care | - // +------+--------------------+ - - - member = i_err_data.member; - cgc = i_err_data.hashed_real_address_45_56; - - // EXP.L3.L3_MISC.L3CERRS.PRD_PURGE_REG - // Write member, cgc address into PRD Purge Engine Command Register - // SCOM Addr: 0x000000001001180E - // bit 0 is the trigger, the act of writing this bit to 1 sets off the line delete - // bits 1:4 is ttype 0b0010 = line delete - // bits 12:16 is the member - // bits 17:28 is the cgc address - - - FAPI_DBG("p9_l3err_linedelete_TryBusyCounts: %ld", p9_l3err_linedelete_TryBusyCounts); - - // wait reg_busy bit for a max counter time which is defined by user - do + // Check the EX_PRD_PURGE_CMD_REG_BUSY bit from scom register + if ( !o_prdPurgeReg.getBit(EX_PRD_PURGE_REG_L3_REQ) ) { - FAPI_TRY(fapi2::getScom(i_target, EX_PRD_PURGE_REG, l_l3_l3cerrs_prd_purge_reg), - "Error from getScom (l_l3_l3cerrs_prd_purge_reg)"); - FAPI_DBG("l_l3_l3cerrs_prd_purge_reg_data: %#lx", l_l3_l3cerrs_prd_purge_reg); - - // get the reg_busy bit from scom register - l_l3_l3cerrs_prd_purge_reg.extractToRight<EX_PRD_PURGE_REG_L3_REQ, 1>(reg_busy); - - if (reg_busy == 0) - { - prd_purge_busy = 0; - break; - } - else - { - busy_reg_counter = busy_reg_counter + 1; - FAPI_DBG("reg_busy = %u, wait for 10ms and try again, remaining cout: %u!", - reg_busy, busy_reg_counter); - // Delay for 10ms - fapi2::delay(BUSY_POLL_DELAY_IN_NS, BUSY_POLL_DELAY_IN_CYCLES); - } + // PURGE is done, get out + break; } - while (busy_reg_counter < p9_l3err_linedelete_TryBusyCounts); - - - // if the reg_busy is still 1 during the counter time - // error occurs - FAPI_ASSERT(!prd_purge_busy, - fapi2::P9_L3ERR_LINE_DELETE_REG_BUSY(). - set_TARGET(i_target), - "Error: hit timeout. PRD_PURGE_REG still working on a previous purge."); - - FAPI_DBG("reg_busy = %u", reg_busy); - - - // if reg_busy is 0 - // write trigger, type, cgc address, member into PRD Purge Engine Command Register - if (reg_busy == 0) + else { - - l_l3_l3cerrs_prd_purge_reg.insertFromRight<EX_PRD_PURGE_REG_L3_MEMBER, EX_PRD_PURGE_REG_L3_MEMBER_LEN>(member); - l_l3_l3cerrs_prd_purge_reg.insertFromRight<EX_PRD_PURGE_REG_L3_DIR_ADDR, EX_PRD_PURGE_REG_L3_DIR_ADDR_LEN>(cgc); - - l_l3_l3cerrs_prd_purge_reg.insertFromRight<EX_PRD_PURGE_REG_L3_REQ, 1>(1); - l_l3_l3cerrs_prd_purge_reg.insertFromRight<EX_PRD_PURGE_REG_L3_TTYPE, EX_PRD_PURGE_REG_L3_TTYPE_LEN>(0x2); - - FAPI_DBG("l_l3_l3cerrs_prd_purge_reg_data: %#lx", l_l3_l3cerrs_prd_purge_reg); - FAPI_TRY(fapi2::putScom(i_target, EX_PRD_PURGE_REG, l_l3_l3cerrs_prd_purge_reg), - "Error from putScom (l_l3_l3cerrs_prd_purge_reg)"); - - do - { - FAPI_TRY(fapi2::getScom(i_target, EX_PRD_PURGE_REG, l_l3_l3cerrs_prd_purge_reg), - "Error from getScom (l_l3_l3cerrs_prd_purge_reg)"); - FAPI_DBG("l_l3_l3cerrs_prd_purge_reg_data: %#lx", l_l3_l3cerrs_prd_purge_reg); - - // get the reg_busy bit from scom register - l_l3_l3cerrs_prd_purge_reg.extractToRight<EX_PRD_PURGE_REG_L3_REQ, 1>(reg_busy); - - if (reg_busy == 0) - { - prd_purge_busy = 0; - break; - } - else - { - busy_reg_counter = busy_reg_counter + 1; - FAPI_DBG("reg_busy = %u, wait for 10ms and try again, remaining cout: %u!", - reg_busy, busy_reg_counter); - // Delay for 10ms - fapi2::delay(BUSY_POLL_DELAY_IN_NS, BUSY_POLL_DELAY_IN_CYCLES); - } - } - while (busy_reg_counter < p9_l3err_linedelete_TryBusyCounts); - - // if the reg_busy is still 1 during the counter time - // error occurs - FAPI_ASSERT(!prd_purge_busy, - fapi2::P9_L3ERR_LINE_DELETE_REG_BUSY(). - set_TARGET(i_target), - "Error: PRD_PURGE_REG indicates the ie compelteion bit was not set yet, the PRD Purge Engine Command Regiter write failed."); - - FAPI_DBG("Writing PRD Purge Engine Command Register busy bit status, reg_busy = %u", reg_busy); - // poll the busy bit completed - + l_loopCount++; + // Delay for 10ms + FAPI_TRY(fapi2::delay(BUSY_POLL_DELAY_IN_NS, + BUSY_POLL_DELAY_IN_CYCLES), + "Fapi Delay call failed."); } + } + while (l_loopCount < i_busyCount); + + // Error out if still busy + FAPI_ASSERT(l_loopCount < i_busyCount, + fapi2::P9_L3ERR_LINE_DELETE_REG_BUSY() + .set_TARGET(i_target) + .set_COUNT_THRESHOLD(i_busyCount) + .set_PRD_PURGE_REG(o_prdPurgeReg), + "Error: PRD_PURGE_CMD_REG_BUSY exceeds limit count of %d.", + i_busyCount); + +fapi_try_exit: + FAPI_DBG("Exiting l3PurgeCompleteCheck - Counter: %d; prdPurgeReg: 0x%.16llX", + l_loopCount, o_prdPurgeReg); + return fapi2::current_err; +} - // mark HWP exit - fapi_try_exit: - FAPI_INF("Exiting p9_l3err_linedelete..."); - return fapi2::current_err; - } // p9_l3err_extract +//------------------------------------------------------------------------------ +// HWP entry point +//------------------------------------------------------------------------------ +// See doxygen in header file +// TODO: RTC 178071 +// See if with some small refactoring we could just call/share the p9_l3_flush +// HWP code/errors to implement this routine? +fapi2::ReturnCode p9_l3err_linedelete( + const fapi2::Target<fapi2::TARGET_TYPE_EX>& i_target, + const p9_l3err_extract_err_data& i_err_data, + const uint64_t i_busyCount) +{ -} // extern "C + // mark function entry + FAPI_DBG("Entering p9_l3err_linedelete: i_busyCount: %ld", i_busyCount); + + fapi2::buffer<uint64_t> l_l3_l3cerrs_prd_purge_reg; + + // +---------------------------+ + // | L3 Line Delete Scom | + // +---------------------------+ + // |Bit(s)| Data | + // +------+--------------------+ + // | 0 | Trigger | + // +------+--------------------+ + // | 1:4 | Purge type (ld=0x2)| + // +------+--------------------+ + // | 5:8 | Don't care | + // +------+--------------------+ + // | 9 | Busy Error | + // +------+--------------------+ + // |12:16 | Member (1 of 20) | + // +------+--------------------+ + // |17:28 | CGC (addr 45:56) | + // +------+--------------------+ + // |29:63 | Don't care | + // +------+--------------------+ + + // EXP.L3.L3_MISC.L3CERRS.PRD_PURGE_REG + // Write member, cgc address into PRD Purge Engine Command Register + // SCOM Addr: 0x000000001001180E + // bit 0 is the trigger, the act of writing this bit to 1 sets off the line delete + // bits 1:4 is ttype 0b0010 = line delete + // bits 12:16 is the member + // bits 17:28 is the cgc address + + // Make sure there's no current purge is in progress + FAPI_TRY(l3PurgeCompleteCheck(i_target, i_busyCount, + l_l3_l3cerrs_prd_purge_reg), + "Error returned from l3PurgeCompleteCheck()"); + FAPI_DBG("l_l3_l3cerrs_prd_purge_reg: 0x%.16llX", + l_l3_l3cerrs_prd_purge_reg); + + + l_l3_l3cerrs_prd_purge_reg.insertFromRight + <EX_PRD_PURGE_REG_L3_MEMBER, EX_PRD_PURGE_REG_L3_MEMBER_LEN> + (i_err_data.member); + l_l3_l3cerrs_prd_purge_reg.insertFromRight + <EX_PRD_PURGE_REG_L3_DIR_ADDR, EX_PRD_PURGE_REG_L3_DIR_ADDR_LEN> + (i_err_data.hashed_real_address_45_56); + l_l3_l3cerrs_prd_purge_reg.insertFromRight<EX_PRD_PURGE_REG_L3_REQ, 1>(1); + l_l3_l3cerrs_prd_purge_reg.insertFromRight + <EX_PRD_PURGE_REG_L3_TTYPE, EX_PRD_PURGE_REG_L3_TTYPE_LEN>(0x2); + + FAPI_DBG("l_l3_l3cerrs_prd_purge_reg_data: %#lx", l_l3_l3cerrs_prd_purge_reg); + FAPI_TRY(fapi2::putScom(i_target, EX_PRD_PURGE_REG, l_l3_l3cerrs_prd_purge_reg), + "Error from putScom (l_l3_l3cerrs_prd_purge_reg)"); + + // Verify purge operation is complete + FAPI_TRY(l3PurgeCompleteCheck(i_target, i_busyCount, + l_l3_l3cerrs_prd_purge_reg), + "Error returned from l3PurgeCompleteCheck()"); + FAPI_DBG("l_l3_l3cerrs_prd_purge_reg: 0x%.16llX", + l_l3_l3cerrs_prd_purge_reg); + + // mark HWP exit +fapi_try_exit: + FAPI_INF("Exiting p9_l3err_linedelete..."); + return fapi2::current_err; +} // p9_l3err_extract |
