From: Takashi Iwai <tiwai@suse.de>
To: dri-devel@lists.freedesktop.org
Cc: Egbert Eich <eich@suse.de>, Dave Airlie <airlied@redhat.com>,
Mathieu Larouche <mathieu.larouche@matrox.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 13/14] drm/mgag200: Add mode validation debugging code
Date: Tue, 18 Jul 2017 16:43:19 +0200 [thread overview]
Message-ID: <20170718144320.8354-14-tiwai@suse.de> (raw)
In-Reply-To: <20170718144320.8354-1-tiwai@suse.de>
From: Egbert Eich <eich@suse.de>
Give more verbose debug message at mode bandwidth checks.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/mgag200/mgag200_mode.c | 51 +++++++++++++++++++++-------------
1 file changed, 31 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 77b8efcd3c65..50efb10f86c5 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1698,6 +1698,21 @@ static uint32_t mga_vga_calculate_mode_bandwidth(struct drm_display_mode *mode,
return (uint32_t)(bandwidth);
}
+static bool mga_vga_check_mode_bandwidth(struct drm_display_mode *mode,
+ int bits_per_pixel,
+ unsigned int max_bw)
+{
+ unsigned int bw;
+
+ bw = mga_vga_calculate_mode_bandwidth(mode, bits_per_pixel);
+ if (bw > max_bw) {
+ DRM_DEBUG_KMS("Mode %d:%s exceeds bandwidth: %d > %d",
+ mode->base.id, mode->name, bw, max_bw);
+ return false;
+ }
+ return true;
+}
+
#define MODE_BANDWIDTH MODE_BAD
static int mga_vga_mode_valid(struct drm_connector *connector,
@@ -1721,20 +1736,20 @@ static int mga_vga_mode_valid(struct drm_connector *connector,
return MODE_VIRTUAL_X;
if (mode->vdisplay > 1200)
return MODE_VIRTUAL_Y;
- if (mga_vga_calculate_mode_bandwidth(mode, bpp)
- > (24400 * 1024))
+ if (mga_vga_check_mode_bandwidth(mode, bpp,
+ 24400 * 1024))
return MODE_BANDWIDTH;
} else if (mdev->unique_rev_id == 0x02) {
if (mode->hdisplay > 1920)
return MODE_VIRTUAL_X;
if (mode->vdisplay > 1200)
return MODE_VIRTUAL_Y;
- if (mga_vga_calculate_mode_bandwidth(mode, bpp)
- > (30100 * 1024))
+ if (mga_vga_check_mode_bandwidth(mode, bpp,
+ 30100 * 1024))
return MODE_BANDWIDTH;
} else {
- if (mga_vga_calculate_mode_bandwidth(mode, bpp)
- > (55000 * 1024))
+ if (mga_vga_check_mode_bandwidth(mode, bpp,
+ 55000 * 1024))
return MODE_BANDWIDTH;
}
} else if (mdev->type == G200_WB) {
@@ -1742,21 +1757,17 @@ static int mga_vga_mode_valid(struct drm_connector *connector,
return MODE_VIRTUAL_X;
if (mode->vdisplay > 1024)
return MODE_VIRTUAL_Y;
- if (mga_vga_calculate_mode_bandwidth(mode,
- bpp > (31877 * 1024)))
+ if (mga_vga_check_mode_bandwidth(mode, bpp, 31877 * 1024))
+ return MODE_BANDWIDTH;
+ } else if (mdev->type == G200_EV) {
+ if (mga_vga_check_mode_bandwidth(mode, bpp, 32700 * 1024))
+ return MODE_BANDWIDTH;
+ } else if (mdev->type == G200_EH) {
+ if (mga_vga_check_mode_bandwidth(mode, bpp, 37500 * 1024))
+ return MODE_BANDWIDTH;
+ } else if (mdev->type == G200_ER) {
+ if (mga_vga_check_mode_bandwidth(mode, bpp, 55000 * 1024))
return MODE_BANDWIDTH;
- } else if (mdev->type == G200_EV &&
- (mga_vga_calculate_mode_bandwidth(mode, bpp)
- > (32700 * 1024))) {
- return MODE_BANDWIDTH;
- } else if (mdev->type == G200_EH &&
- (mga_vga_calculate_mode_bandwidth(mode, bpp)
- > (37500 * 1024))) {
- return MODE_BANDWIDTH;
- } else if (mdev->type == G200_ER &&
- (mga_vga_calculate_mode_bandwidth(mode,
- bpp) > (55000 * 1024))) {
- return MODE_BANDWIDTH;
}
if ((mode->hdisplay % 8) != 0 || (mode->hsync_start % 8) != 0 ||
--
2.13.2
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next prev parent reply other threads:[~2017-07-18 14:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-18 14:43 [PATCH 00/14] mgag200 fixes Takashi Iwai
2017-07-18 14:43 ` [PATCH 01/14] drm/mgag200: Add doublescan and interlace support Takashi Iwai
2017-07-18 14:43 ` [PATCH 02/14] drm/mgag200: Add additional limits for certain G200 variants Takashi Iwai
2017-07-18 14:43 ` [PATCH 03/14] drm/mgag200: Fix memleak in error path in mgag200_bo_create() Takashi Iwai
2017-07-18 14:43 ` [PATCH 04/14] drm/mgag200: Free container instead of member in mga_user_framebuffer_destroy() Takashi Iwai
2017-07-18 14:43 ` [PATCH 05/14] drm/mgag200: Initialize data needed to map fbdev memory Takashi Iwai
2017-07-18 14:43 ` [PATCH 06/14] drm/mgag200: Simplify function mgag200_ttm_placement() Takashi Iwai
2017-07-18 14:43 ` [PATCH 07/14] drm/mgag200: Add support for MATROX PCI device IDs 0x520 and 0x521 Takashi Iwai
2017-07-20 4:17 ` Dave Airlie
2017-07-20 9:47 ` Takashi Iwai
2017-07-20 15:05 ` Egbert Eich
2017-07-18 14:43 ` [PATCH 08/14] drm/mgag200: Cleanup cursor BOs properly Takashi Iwai
2017-07-18 14:43 ` [PATCH 09/14] drm/mgag200: Add missing drm_connector_unregister() Takashi Iwai
2017-07-19 8:44 ` Takashi Iwai
2017-07-20 8:15 ` Daniel Vetter
2017-07-18 14:43 ` [PATCH 10/14] drm/mgag200: Don't use crtc_* parameters for validation Takashi Iwai
2017-07-19 6:38 ` Daniel Vetter
2017-07-18 14:43 ` [PATCH 11/14] drm/mgag200: Consolidate depth/bpp handling Takashi Iwai
2017-07-20 11:58 ` Paul Menzel
2017-07-20 12:08 ` Takashi Iwai
2017-07-18 14:43 ` [PATCH 12/14] drm/mgag200: Add command line option to specify preferred depth Takashi Iwai
2017-07-18 14:43 ` Takashi Iwai [this message]
2017-07-18 14:43 ` [PATCH 14/14] drm/mgag200: Implement basic PM support Takashi Iwai
2017-08-01 19:25 ` [PATCH 00/14] mgag200 fixes Mathieu Larouche
2017-08-01 21:18 ` Takashi Iwai
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