diff options
Diffstat (limited to 'drivers/gpu/host1x/job.c')
-rw-r--r-- | drivers/gpu/host1x/job.c | 57 |
1 files changed, 31 insertions, 26 deletions
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index bf5100e9b05..d1b72f4c744 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -291,25 +291,37 @@ struct host1x_firewall { u32 count; }; +static int check_register(struct host1x_firewall *fw, unsigned long offset) +{ + if (fw->job->is_addr_reg(fw->dev, fw->class, offset)) { + if (!fw->num_relocs) + return -EINVAL; + + if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset)) + return -EINVAL; + + fw->num_relocs--; + fw->reloc++; + } + + return 0; +} + static int check_mask(struct host1x_firewall *fw) { u32 mask = fw->mask; u32 reg = fw->reg; + int ret; while (mask) { if (fw->words == 0) return -EINVAL; if (mask & 1) { - if (fw->job->is_addr_reg(fw->dev, fw->class, reg)) { - if (!fw->num_relocs) - return -EINVAL; - if (!check_reloc(fw->reloc, fw->cmdbuf, - fw->offset)) - return -EINVAL; - fw->reloc++; - fw->num_relocs--; - } + ret = check_register(fw, reg); + if (ret < 0) + return ret; + fw->words--; fw->offset++; } @@ -324,19 +336,16 @@ static int check_incr(struct host1x_firewall *fw) { u32 count = fw->count; u32 reg = fw->reg; + int ret; while (count) { if (fw->words == 0) return -EINVAL; - if (fw->job->is_addr_reg(fw->dev, fw->class, reg)) { - if (!fw->num_relocs) - return -EINVAL; - if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset)) - return -EINVAL; - fw->reloc++; - fw->num_relocs--; - } + ret = check_register(fw, reg); + if (ret < 0) + return ret; + reg++; fw->words--; fw->offset++; @@ -348,21 +357,17 @@ static int check_incr(struct host1x_firewall *fw) static int check_nonincr(struct host1x_firewall *fw) { - int is_addr_reg = fw->job->is_addr_reg(fw->dev, fw->class, fw->reg); u32 count = fw->count; + int ret; while (count) { if (fw->words == 0) return -EINVAL; - if (is_addr_reg) { - if (!fw->num_relocs) - return -EINVAL; - if (!check_reloc(fw->reloc, fw->cmdbuf, fw->offset)) - return -EINVAL; - fw->reloc++; - fw->num_relocs--; - } + ret = check_register(fw, fw->reg); + if (ret < 0) + return ret; + fw->words--; fw->offset++; count--; |