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drm/radeon: fix render backend setup for SI and CIK

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Only the render backends of the first shader engine were enabled. The others
were erroneously disabled. Enabling the other render backends improves
performance a lot.

Unigine Sanctuary on Bonaire:
  Before: 15 fps
  After:  90 fps

Judging from the fan noise, the GPU was also underclocked when the other
render backends were disabled, resulting in horrible performance. The fan is
a lot noisy under load now.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Marek Olšák 2013-12-22 02:18:00 +01:00 committed by Alex Deucher
parent d00adcc8ae
commit 9fadb352ed
2 changed files with 10 additions and 10 deletions
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10
drivers/gpu/drm/radeon/cik.c
View File

@ -3057,7 +3057,7 @@ static u32 cik_create_bitmask(u32 bit_width)
* Returns the disabled RB bitmask.
*/
static u32 cik_get_rb_disabled(struct radeon_device *rdev,
u32 max_rb_num, u32 se_num,
u32 max_rb_num_per_se,
u32 sh_per_se)
{
u32 data, mask;
@ -3071,7 +3071,7 @@ static u32 cik_get_rb_disabled(struct radeon_device *rdev,
data >>= BACKEND_DISABLE_SHIFT;
mask = cik_create_bitmask(max_rb_num / se_num / sh_per_se);
mask = cik_create_bitmask(max_rb_num_per_se / sh_per_se);
return data & mask;
}
@ -3088,7 +3088,7 @@ static u32 cik_get_rb_disabled(struct radeon_device *rdev,
*/
static void cik_setup_rb(struct radeon_device *rdev,
u32 se_num, u32 sh_per_se,
u32 max_rb_num)
u32 max_rb_num_per_se)
{
int i, j;
u32 data, mask;
@ -3098,7 +3098,7 @@ static void cik_setup_rb(struct radeon_device *rdev,
for (i = 0; i < se_num; i++) {
for (j = 0; j < sh_per_se; j++) {
cik_select_se_sh(rdev, i, j);
data = cik_get_rb_disabled(rdev, max_rb_num, se_num, sh_per_se);
data = cik_get_rb_disabled(rdev, max_rb_num_per_se, sh_per_se);
if (rdev->family == CHIP_HAWAII)
disabled_rbs |= data << ((i * sh_per_se + j) * HAWAII_RB_BITMAP_WIDTH_PER_SH);
else
@ -3108,7 +3108,7 @@ static void cik_setup_rb(struct radeon_device *rdev,
cik_select_se_sh(rdev, 0xffffffff, 0xffffffff);
mask = 1;
for (i = 0; i < max_rb_num; i++) {
for (i = 0; i < max_rb_num_per_se * se_num; i++) {
if (!(disabled_rbs & mask))
enabled_rbs |= mask;
mask <<= 1;

10
drivers/gpu/drm/radeon/si.c
View File

@ -2811,7 +2811,7 @@ static void si_setup_spi(struct radeon_device *rdev,
}
static u32 si_get_rb_disabled(struct radeon_device *rdev,
u32 max_rb_num, u32 se_num,
u32 max_rb_num_per_se,
u32 sh_per_se)
{
u32 data, mask;
@ -2825,14 +2825,14 @@ static u32 si_get_rb_disabled(struct radeon_device *rdev,
data >>= BACKEND_DISABLE_SHIFT;
mask = si_create_bitmask(max_rb_num / se_num / sh_per_se);
mask = si_create_bitmask(max_rb_num_per_se / sh_per_se);
return data & mask;
}
static void si_setup_rb(struct radeon_device *rdev,
u32 se_num, u32 sh_per_se,
u32 max_rb_num)
u32 max_rb_num_per_se)
{
int i, j;
u32 data, mask;
@ -2842,14 +2842,14 @@ static void si_setup_rb(struct radeon_device *rdev,
for (i = 0; i < se_num; i++) {
for (j = 0; j < sh_per_se; j++) {
si_select_se_sh(rdev, i, j);
data = si_get_rb_disabled(rdev, max_rb_num, se_num, sh_per_se);
data = si_get_rb_disabled(rdev, max_rb_num_per_se, sh_per_se);
disabled_rbs |= data << ((i * sh_per_se + j) * TAHITI_RB_BITMAP_WIDTH_PER_SH);
}
}
si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
mask = 1;
for (i = 0; i < max_rb_num; i++) {
for (i = 0; i < max_rb_num_per_se * se_num; i++) {
if (!(disabled_rbs & mask))
enabled_rbs |= mask;
mask <<= 1;