litmus-rt.git - The LITMUS^RT kernel.

diff options

Diffstat (limited to 'drivers/pci/hotplug/pciehp_acpi.c')

-rw-r--r--

1 files changed, 1 insertions, 0 deletions


diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c index b09b083011d6..1f4000a5a108 100644 --- a/drivers/pci/hotplug/pciehp_acpi.c +++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -26,6 +26,7 @@
26	#include <linux/acpi.h>	26	#include <linux/acpi.h>
27	#include <linux/pci.h>	27	#include <linux/pci.h>
28	#include <linux/pci_hotplug.h>	28	#include <linux/pci_hotplug.h>
		29	#include <linux/slab.h>
29	#include "pciehp.h"	30	#include "pciehp.h"
30		31
31	#define PCIEHP_DETECT_PCIE (0)	32	#define PCIEHP_DETECT_PCIE (0)

/* * linux/drivers/mmc/card/mmc_test.c * * Copyright 2007-2008 Pierre Ossman * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. */ #include <linux/mmc/core.h> #include <linux/mmc/card.h> #include <linux/mmc/host.h> #include <linux/mmc/mmc.h> #include <linux/slab.h> #include <linux/scatterlist.h> #define RESULT_OK 0 #define RESULT_FAIL 1 #define RESULT_UNSUP_HOST 2 #define RESULT_UNSUP_CARD 3 #define BUFFER_ORDER 2 #define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER) struct mmc_test_card { struct mmc_card *card; u8 scratch[BUFFER_SIZE]; u8 *buffer; #ifdef CONFIG_HIGHMEM struct page *highmem; #endif }; /*******************************************************************/ /* General helper functions */ /*******************************************************************/ /* * Configure correct block size in card */ static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size) { struct mmc_command cmd; int ret; cmd.opcode = MMC_SET_BLOCKLEN; cmd.arg = size; cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; ret = mmc_wait_for_cmd(test->card->host, &cmd, 0); if (ret) return ret; return 0; } /* * Fill in the mmc_request structure given a set of transfer parameters. */ static void mmc_test_prepare_mrq(struct mmc_test_card *test, struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len, unsigned dev_addr, unsigned blocks, unsigned blksz, int write) { BUG_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop); if (blocks > 1) { mrq->cmd->opcode = write ? MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK; } else { mrq->cmd->opcode = write ? MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK; } mrq->cmd->arg = dev_addr; if (!mmc_card_blockaddr(test->card)) mrq->cmd->arg <<= 9; mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC; if (blocks == 1) mrq->stop = NULL; else { mrq->stop->opcode = MMC_STOP_TRANSMISSION; mrq->stop->arg = 0; mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC; } mrq->data->blksz = blksz; mrq->data->blocks = blocks; mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; mrq->data->sg = sg; mrq->data->sg_len = sg_len; mmc_set_data_timeout(mrq->data, test->card); } /* * Wait for the card to finish the busy state */ static int mmc_test_wait_busy(struct mmc_test_card *test) { int ret, busy; struct mmc_command cmd; busy = 0; do { memset(&cmd, 0, sizeof(struct mmc_command)); cmd.opcode = MMC_SEND_STATUS; cmd.arg = test->card->rca << 16; cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; ret = mmc_wait_for_cmd(test->card->host, &cmd, 0); if (ret) break; if (!busy && !(cmd.resp[0] & R1_READY_FOR_DATA)) { busy = 1; printk(KERN_INFO "%s: Warning: Host did not " "wait for busy state to end.\n", mmc_hostname(test->card->host)); } } while (!(cmd.resp[0] & R1_READY_FOR_DATA)); return ret; } /* * Transfer a single sector of kernel addressable data */ static int mmc_test_buffer_transfer(struct mmc_test_card *test, u8 *buffer, unsigned addr, unsigned blksz, int write) { int ret; struct mmc_request mrq; struct mmc_command cmd; struct mmc_command stop; struct mmc_data data; struct scatterlist sg; memset(&mrq, 0, sizeof(struct mmc_request)); memset(&cmd, 0, sizeof(struct mmc_command)); memset(&data, 0, sizeof(struct mmc_data)); memset(&stop, 0, sizeof(struct mmc_command)); mrq.cmd = &cmd; mrq.data = &data; mrq.stop = &stop; sg_init_one(&sg, buffer, blksz); mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write); mmc_wait_for_req(test->card->host, &mrq); if (cmd.error) return cmd.error; if (data.error) return data.error; ret = mmc_test_wait_busy(test); if (ret) return ret; return 0; } /*******************************************************************/ /* Test preparation and cleanup */ /*******************************************************************/ /* * Fill the first couple of sectors of the card with known data * so that bad reads/writes can be detected */ static int __mmc_test_prepare(struct mmc_test_card *test, int write) { int ret, i; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; if (write) memset(test->buffer, 0xDF, 512); else { for (i = 0;i < 512;i++) test->buffer[i] = i; } for (i = 0;i < BUFFER_SIZE / 512;i++) { ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1); if (ret) return ret; } return 0; } static int mmc_test_prepare_write(struct mmc_test_card *test) { return __mmc_test_prepare(test, 1); } static int mmc_test_prepare_read(struct mmc_test_card *test) { return __mmc_test_prepare(test, 0); } static int mmc_test_cleanup(struct mmc_test_card *test) { int ret, i; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; memset(test->buffer, 0, 512); for (i = 0;i < BUFFER_SIZE / 512;i++) { ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1); if (ret) return ret; } return 0; } /*******************************************************************/ /* Test execution helpers */ /*******************************************************************/ /* * Modifies the mmc_request to perform the "short transfer" tests */ static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test, struct mmc_request *mrq, int write) { BUG_ON(!mrq || !mrq->cmd || !mrq->data); if (mrq->data->blocks > 1) { mrq->cmd->opcode = write ? MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK; mrq->stop = NULL; } else { mrq->cmd->opcode = MMC_SEND_STATUS; mrq->cmd->arg = test->card->rca << 16; } } /* * Checks that a normal transfer didn't have any errors */ static int mmc_test_check_result(struct mmc_test_card *test, struct mmc_request *mrq) { int ret; BUG_ON(!mrq || !mrq->cmd || !mrq->data); ret = 0; if (!ret && mrq->cmd->error) ret = mrq->cmd->error; if (!ret && mrq->data->error) ret = mrq->data->error; if (!ret && mrq->stop && mrq->stop->error) ret = mrq->stop->error; if (!ret && mrq->data->bytes_xfered != mrq->data->blocks * mrq->data->blksz) ret = RESULT_FAIL; if (ret == -EINVAL) ret = RESULT_UNSUP_HOST; return ret; } /* * Checks that a "short transfer" behaved as expected */ static int mmc_test_check_broken_result(struct mmc_test_card *test, struct mmc_request *mrq) { int ret; BUG_ON(!mrq || !mrq->cmd || !mrq->data); ret = 0; if (!ret && mrq->cmd->error) ret = mrq->cmd->error; if (!ret && mrq->data->error == 0) ret = RESULT_FAIL; if (!ret && mrq->data->error != -ETIMEDOUT) ret = mrq->data->error; if (!ret && mrq->stop && mrq->stop->error) ret = mrq->stop->error; if (mrq->data->blocks > 1) { if (!ret && mrq->data->bytes_xfered > mrq->data->blksz) ret = RESULT_FAIL; } else { if (!ret && mrq->data->bytes_xfered > 0) ret = RESULT_FAIL; } if (ret == -EINVAL) ret = RESULT_UNSUP_HOST; return ret; } /* * Tests a basic transfer with certain parameters */ static int mmc_test_simple_transfer(struct mmc_test_card *test, struct scatterlist *sg, unsigned sg_len, unsigned dev_addr, unsigned blocks, unsigned blksz, int write) { struct mmc_request mrq; struct mmc_command cmd; struct mmc_command stop; struct mmc_data data; memset(&mrq, 0, sizeof(struct mmc_request)); memset(&cmd, 0, sizeof(struct mmc_command)); memset(&data, 0, sizeof(struct mmc_data)); memset(&stop, 0, sizeof(struct mmc_command)); mrq.cmd = &cmd; mrq.data = &data; mrq.stop = &stop; mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr, blocks, blksz, write); mmc_wait_for_req(test->card->host, &mrq); mmc_test_wait_busy(test); return mmc_test_check_result(test, &mrq); } /* * Tests a transfer where the card will fail completely or partly */ static int mmc_test_broken_transfer(struct mmc_test_card *test, unsigned blocks, unsigned blksz, int write) { struct mmc_request mrq; struct mmc_command cmd; struct mmc_command stop; struct mmc_data data; struct scatterlist sg; memset(&mrq, 0, sizeof(struct mmc_request)); memset(&cmd, 0, sizeof(struct mmc_command)); memset(&data, 0, sizeof(struct mmc_data)); memset(&stop, 0, sizeof(struct mmc_command)); mrq.cmd = &cmd; mrq.data = &data; mrq.stop = &stop; sg_init_one(&sg, test->buffer, blocks * blksz); mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write); mmc_test_prepare_broken_mrq(test, &mrq, write); mmc_wait_for_req(test->card->host, &mrq); mmc_test_wait_busy(test); return mmc_test_check_broken_result(test, &mrq); } /* * Does a complete transfer test where data is also validated * * Note: mmc_test_prepare() must have been done before this call */ static int mmc_test_transfer(struct mmc_test_card *test, struct scatterlist *sg, unsigned sg_len, unsigned dev_addr, unsigned blocks, unsigned blksz, int write) { int ret, i; unsigned long flags; if (write) { for (i = 0;i < blocks * blksz;i++) test->scratch[i] = i; } else { memset(test->scratch, 0, BUFFER_SIZE); } local_irq_save(flags); sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); local_irq_restore(flags); ret = mmc_test_set_blksize(test, blksz); if (ret) return ret; ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr, blocks, blksz, write); if (ret) return ret; if (write) { int sectors; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; sectors = (blocks * blksz + 511) / 512; if ((sectors * 512) == (blocks * blksz)) sectors++; if ((sectors * 512) > BUFFER_SIZE) return -EINVAL; memset(test->buffer, 0, sectors * 512); for (i = 0;i < sectors;i++) { ret = mmc_test_buffer_transfer(test, test->buffer + i * 512, dev_addr + i, 512, 0); if (ret) return ret; } for (i = 0;i < blocks * blksz;i++) { if (test->buffer[i] != (u8)i) return RESULT_FAIL; } for (;i < sectors * 512;i++) { if (test->buffer[i] != 0xDF) return RESULT_FAIL; } } else { local_irq_save(flags); sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); local_irq_restore(flags); for (i = 0;i < blocks * blksz;i++) { if (test->scratch[i] != (u8)i) return RESULT_FAIL; } } return 0; } /*******************************************************************/ /* Tests */ /*******************************************************************/ struct mmc_test_case { const char *name; int (*prepare)(struct mmc_test_card *); int (*run)(struct mmc_test_card *); int (*cleanup)(struct mmc_test_card *); }; static int mmc_test_basic_write(struct mmc_test_card *test) { int ret; struct scatterlist sg; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; sg_init_one(&sg, test->buffer, 512); ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1); if (ret) return ret; return 0; } static int mmc_test_basic_read(struct mmc_test_card *test) { int ret; struct scatterlist sg; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; sg_init_one(&sg, test->buffer, 512); ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0); if (ret) return ret; return 0; } static int mmc_test_verify_write(struct mmc_test_card *test) { int ret; struct scatterlist sg; sg_init_one(&sg, test->buffer, 512); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); if (ret) return ret; return 0; } static int mmc_test_verify_read(struct mmc_test_card *test) { int ret; struct scatterlist sg; sg_init_one(&sg, test->buffer, 512); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); if (ret) return ret; return 0; } static int mmc_test_multi_write(struct mmc_test_card *test) { int ret; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; sg_init_one(&sg, test->buffer, size); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); if (ret) return ret; return 0; } static int mmc_test_multi_read(struct mmc_test_card *test) { int ret; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; sg_init_one(&sg, test->buffer, size); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); if (ret) return ret; return 0; } static int mmc_test_pow2_write(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; if (!test->card->csd.write_partial) return RESULT_UNSUP_CARD; for (i = 1; i < 512;i <<= 1) { sg_init_one(&sg, test->buffer, i); ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1); if (ret) return ret; } return 0; } static int mmc_test_pow2_read(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; if (!test->card->csd.read_partial) return RESULT_UNSUP_CARD; for (i = 1; i < 512;i <<= 1) { sg_init_one(&sg, test->buffer, i); ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0); if (ret) return ret; } return 0; } static int mmc_test_weird_write(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; if (!test->card->csd.write_partial) return RESULT_UNSUP_CARD; for (i = 3; i < 512;i += 7) { sg_init_one(&sg, test->buffer, i); ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1); if (ret) return ret; } return 0; } static int mmc_test_weird_read(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; if (!test->card->csd.read_partial) return RESULT_UNSUP_CARD; for (i = 3; i < 512;i += 7) { sg_init_one(&sg, test->buffer, i); ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0); if (ret) return ret; } return 0; } static int mmc_test_align_write(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; for (i = 1;i < 4;i++) { sg_init_one(&sg, test->buffer + i, 512); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); if (ret) return ret; } return 0; } static int mmc_test_align_read(struct mmc_test_card *test) { int ret, i; struct scatterlist sg; for (i = 1;i < 4;i++) { sg_init_one(&sg, test->buffer + i, 512); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); if (ret) return ret; } return 0; } static int mmc_test_align_multi_write(struct mmc_test_card *test) { int ret, i; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; for (i = 1;i < 4;i++) { sg_init_one(&sg, test->buffer + i, size); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); if (ret) return ret; } return 0; } static int mmc_test_align_multi_read(struct mmc_test_card *test) { int ret, i; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; for (i = 1;i < 4;i++) { sg_init_one(&sg, test->buffer + i, size); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); if (ret) return ret; } return 0; } static int mmc_test_xfersize_write(struct mmc_test_card *test) { int ret; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; ret = mmc_test_broken_transfer(test, 1, 512, 1); if (ret) return ret; return 0; } static int mmc_test_xfersize_read(struct mmc_test_card *test) { int ret; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; ret = mmc_test_broken_transfer(test, 1, 512, 0); if (ret) return ret; return 0; } static int mmc_test_multi_xfersize_write(struct mmc_test_card *test) { int ret; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; ret = mmc_test_broken_transfer(test, 2, 512, 1); if (ret) return ret; return 0; } static int mmc_test_multi_xfersize_read(struct mmc_test_card *test) { int ret; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; ret = mmc_test_set_blksize(test, 512); if (ret) return ret; ret = mmc_test_broken_transfer(test, 2, 512, 0); if (ret) return ret; return 0; } #ifdef CONFIG_HIGHMEM static int mmc_test_write_high(struct mmc_test_card *test) { int ret; struct scatterlist sg; sg_init_table(&sg, 1); sg_set_page(&sg, test->highmem, 512, 0); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); if (ret) return ret; return 0; } static int mmc_test_read_high(struct mmc_test_card *test) { int ret; struct scatterlist sg; sg_init_table(&sg, 1); sg_set_page(&sg, test->highmem, 512, 0); ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); if (ret) return ret; return 0; } static int mmc_test_multi_write_high(struct mmc_test_card *test) { int ret; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; sg_init_table(&sg, 1); sg_set_page(&sg, test->highmem, size, 0); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); if (ret) return ret; return 0; } static int mmc_test_multi_read_high(struct mmc_test_card *test) { int ret; unsigned int size; struct scatterlist sg; if (test->card->host->max_blk_count == 1) return RESULT_UNSUP_HOST; size = PAGE_SIZE * 2; size = min(size, test->card->host->max_req_size); size = min(size, test->card->host->max_seg_size); size = min(size, test->card->host->max_blk_count * 512); if (size < 1024) return RESULT_UNSUP_HOST; sg_init_table(&sg, 1); sg_set_page(&sg, test->highmem, size, 0); ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); if (ret) return ret; return 0; } #endif /* CONFIG_HIGHMEM */ static const struct mmc_test_case mmc_test_cases[] = { { .name = "Basic write (no data verification)", .run = mmc_test_basic_write, }, { .name = "Basic read (no data verification)", .run = mmc_test_basic_read, }, { .name = "Basic write (with data verification)", .prepare = mmc_test_prepare_write, .run = mmc_test_verify_write, .cleanup = mmc_test_cleanup, }, { .name = "Basic read (with data verification)", .prepare = mmc_test_prepare_read, .run = mmc_test_verify_read, .cleanup = mmc_test_cleanup, }, { .name = "Multi-block write", .prepare = mmc_test_prepare_write, .run = mmc_test_multi_write, .cleanup = mmc_test_cleanup, }, { .name = "Multi-block read", .prepare = mmc_test_prepare_read, .run = mmc_test_multi_read, .cleanup = mmc_test_cleanup, }, { .name = "Power of two block writes", .prepare = mmc_test_prepare_write, .run = mmc_test_pow2_write, .cleanup = mmc_test_cleanup, }, { .name = "Power of two block reads", .prepare = mmc_test_prepare_read, .run = mmc_test_pow2_read, .cleanup = mmc_test_cleanup, }, { .name = "Weird sized block writes", .prepare = mmc_test_prepare_write, .run = mmc_test_weird_write, .cleanup = mmc_test_cleanup, }, { .name = "Weird sized block reads", .prepare = mmc_test_prepare_read, .run = mmc_test_weird_read, .cleanup = mmc_test_cleanup, }, { .name = "Badly aligned write", .prepare = mmc_test_prepare_write, .run = mmc_test_align_write, .cleanup = mmc_test_cleanup, }, { .name = "Badly aligned read", .prepare = mmc_test_prepare_read, .run = mmc_test_align_read, .cleanup = mmc_test_cleanup, }, { .name = "Badly aligned multi-block write", .prepare = mmc_test_prepare_write, .run = mmc_test_align_multi_write, .cleanup = mmc_test_cleanup, }, { .name = "Badly aligned multi-block read", .prepare = mmc_test_prepare_read, .run = mmc_test_align_multi_read, .cleanup = mmc_test_cleanup, }, { .name = "Correct xfer_size at write (start failure)", .run = mmc_test_xfersize_write, }, { .name = "Correct xfer_size at read (start failure)", .run = mmc_test_xfersize_read, }, { .name = "Correct xfer_size at write (midway failure)", .run = mmc_test_multi_xfersize_write, }, { .name = "Correct xfer_size at read (midway failure)", .run = mmc_test_multi_xfersize_read, }, #ifdef CONFIG_HIGHMEM { .name = "Highmem write", .prepare = mmc_test_prepare_write, .run = mmc_test_write_high, .cleanup = mmc_test_cleanup, }, { .name = "Highmem read", .prepare = mmc_test_prepare_read, .run = mmc_test_read_high, .cleanup = mmc_test_cleanup, }, { .name = "Multi-block highmem write", .prepare = mmc_test_prepare_write, .run = mmc_test_multi_write_high, .cleanup = mmc_test_cleanup, }, { .name = "Multi-block highmem read", .prepare = mmc_test_prepare_read, .run = mmc_test_multi_read_high, .cleanup = mmc_test_cleanup, }, #endif /* CONFIG_HIGHMEM */ }; static DEFINE_MUTEX(mmc_test_lock); static void mmc_test_run(struct mmc_test_card *test, int testcase) { int i, ret; printk(KERN_INFO "%s: Starting tests of card %s...\n", mmc_hostname(test->card->host), mmc_card_id(test->card)); mmc_claim_host(test->card->host); for (i = 0;i < ARRAY_SIZE(mmc_test_cases);i++) { if (testcase && ((i + 1) != testcase)) continue; printk(KERN_INFO "%s: Test case %d. %s...\n", mmc_hostname(test->card->host), i + 1, mmc_test_cases[i].name); if (mmc_test_cases[i].prepare) { ret = mmc_test_cases[i].prepare(test); if (ret) { printk(KERN_INFO "%s: Result: Prepare " "stage failed! (%d)\n", mmc_hostname(test->card->host), ret); continue; } } ret = mmc_test_cases[i].run(test); switch (ret) { case RESULT_OK: printk(KERN_INFO "%s: Result: OK\n", mmc_hostname(test->card->host)); break; case RESULT_FAIL: printk(KERN_INFO "%s: Result: FAILED\n", mmc_hostname(test->card->host)); break; case RESULT_UNSUP_HOST: printk(KERN_INFO "%s: Result: UNSUPPORTED " "(by host)\n", mmc_hostname(test->card->host)); break; case RESULT_UNSUP_CARD: printk(KERN_INFO "%s: Result: UNSUPPORTED " "(by card)\n", mmc_hostname(test->card->host)); break; default: printk(KERN_INFO "%s: Result: ERROR (%d)\n", mmc_hostname(test->card->host), ret); } if (mmc_test_cases[i].cleanup) { ret = mmc_test_cases[i].cleanup(test); if (ret) { printk(KERN_INFO "%s: Warning: Cleanup " "stage failed! (%d)\n", mmc_hostname(test->card->host), ret); } } } mmc_release_host(test->card->host); printk(KERN_INFO "%s: Tests completed.\n", mmc_hostname(test->card->host)); } static ssize_t mmc_test_show(struct device *dev, struct device_attribute *attr, char *buf) { mutex_lock(&mmc_test_lock); mutex_unlock(&mmc_test_lock); return 0; } static ssize_t mmc_test_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct mmc_card *card; struct mmc_test_card *test; int testcase; card = container_of(dev, struct mmc_card, dev); testcase = simple_strtol(buf, NULL, 10); test = kzalloc(sizeof(struct mmc_test_card), GFP_KERNEL); if (!test) return -ENOMEM; test->card = card; test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL); #ifdef CONFIG_HIGHMEM test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER); #endif #ifdef CONFIG_HIGHMEM if (test->buffer && test->highmem) { #else if (test->buffer) { #endif mutex_lock(&mmc_test_lock); mmc_test_run(test, testcase); mutex_unlock(&mmc_test_lock); } #ifdef CONFIG_HIGHMEM __free_pages(test->highmem, BUFFER_ORDER); #endif kfree(test->buffer); kfree(test); return count; } static DEVICE_ATTR(test, S_IWUSR | S_IRUGO, mmc_test_show, mmc_test_store); static int mmc_test_probe(struct mmc_card *card) { int ret; if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD)) return -ENODEV; ret = device_create_file(&card->dev, &dev_attr_test); if (ret) return ret; dev_info(&card->dev, "Card claimed for testing.\n"); return 0; } static void mmc_test_remove(struct mmc_card *card) { device_remove_file(&card->dev, &dev_attr_test); } static struct mmc_driver mmc_driver = { .drv = { .name = "mmc_test", }, .probe = mmc_test_probe, .remove = mmc_test_remove, }; static int __init mmc_test_init(void) { return mmc_register_driver(&mmc_driver); } static void __exit mmc_test_exit(void) { mmc_unregister_driver(&mmc_driver); } module_init(mmc_test_init); module_exit(mmc_test_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver"); MODULE_AUTHOR("Pierre Ossman");


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